52,339 results
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2. DYNAMICS OF THE BACTERIOPLANKTON STATE IN THE SHCHUCHIY BAY OF LAKE LADOGA AFTER THE CLOSURE OF THE PRIOZERSKY PULP AND PAPER MILL
- Author
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L. L. Kapustina, G. G. Mitrukova, and E. A. Kurashov
- Subjects
Hydrology ,Ecology ,business.industry ,Pulp (paper) ,Closure (topology) ,Paper mill ,Bacterioplankton ,engineering.material ,engineering ,Environmental science ,business ,Waste Management and Disposal ,Bay ,Water Science and Technology - Abstract
Introduction. The Shchuchiy Bay is located in the western part of the skerry area of Lake Ladoga near the town of Priozersk. For almost 20 years, the bay has experienced an anthropogenic impact from the ingress of untreated wastewater from the Priozersk Pulp and Paper Mill (PPM). Systematic microbiological studies of the Shchuchiy Bay ecosystem were started in the middle of the 1970s by the Institute of Limnology of the Russian Academy of Sciences and continued after the PPM closure in 1986. Materials and methods. The ecosystem of the bay was studied in detail during the growing season of 2013–2014; periodic studies were carried out in 2015–2018. Retrospective data were also used for the analysis. Water samples were taken at four stations from the surface horizon. The following microbiological indicators were determined: the abundance of bacterioplankton and the percentages of various morphological types of bacterial cells. Results and discussion. A comparison of the quantitative level of development of the bacterial community in the bay in different periods showed a gradual decrease in the abundance of bacterioplankton as the anthropogenic impact weakened after the closure of the Priozersky PPM from 12.40 million cells ml–1 in 1987 to an average value of 2.62±1.03 million cells ml–1 in 2013–2018. A positive correlation was found between the concentration of bacteria and water temperature. The percentage of rod-shaped microorganisms in the water of the bay also decreased as the anthropogenic impact weakened from 73.4 % in 1987 to 53.1±7.6 % in 2013–2018, which indicated an improvement in water quality. Conclusion. A stable decrease in the abundance of bacteria from the level characteristic of highly polluted and eutrophic water bodies to the level characteristic of mesotrophic and mesotrophic-eutrophic water bodies is a reliable criterion for the restoration of the ecosystem of the Shchuchiy Bay to the state characteristic of similar bays of Lake Ladoga.
- Published
- 2021
3. Issuance, Delivery And Management Of Meal Vouchers (paper Support And Dematerialized Support By Card) For Anses Staff
- Subjects
Hydrology ,Restaurants ,Company business management ,Business, international - Abstract
Contract notice: issuance, delivery and management of meal vouchers (paper support and dematerialized support by card) for anses staff Issuance, delivery and management of restaurant vouchers (paper and dematerialized card [...]
- Published
- 2023
4. Sink or SWMM: Simulating the Hydrological Effects of Retention Tanks in a Small Urban Catchment
- Author
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Gale, Richard J. B., Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Naweed, Anjum, editor, Wardaszko, Marcin, editor, Leigh, Elyssebeth, editor, and Meijer, Sebastiaan, editor
- Published
- 2018
- Full Text
- View/download PDF
5. Response of the fish assemblage to a saltwater barrier and paper mill effluent in the Lower Neches River (Texas) during drought
- Author
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Rebecca I. Pizano-Torres, Katherine A. Roach, and Kirk O. Winemiller
- Subjects
Environmental flow ,estuary ,hydrology ,hypoxia ,salinity ,species richness ,Environmental sciences ,GE1-350 ,Ecology ,QH540-549.5 - Abstract
In 2011, Texas experienced record heat and drought that escalated concerns about environmental flows for rivers. In response to these worries, fishes and water quality were sampled in the Lower Neches River, Texas, from May-August 2012 during continued drought. Potential effects of hydrology on environmental parameters and assemblages of small (seine samples) and large (gillnet samples) fishes were evaluated at multiple locations. Approximately 1 km downstream from the saltwater barrier, paper mill effluent discharges into the river. Salinity was higher and dissolved oxygen lower below the saltwater barrier during low-flow intervals. Fish species richness in seine samples, was higher when the barrier was open, and species richness for both gear types was lowest at sites closest to the paper mill effluent discharge. Overall, species richness was higher at sites below the barrier, with more estuarine and marine species present. When the barrier was closed, richness and abundance of sensitive freshwater species were lower below the barrier. Closure of the barrier during drought results in accumulation of dissolved organic compounds from paper mill effluent and lower dissolved oxygen in the reach below the barrier. To sustain biodiversity in the system, subsistence flows must pass across the saltwater barrier during droughts.
- Published
- 2017
- Full Text
- View/download PDF
6. Non-Salado flow and transport position paper. Revision 1
- Author
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Behl, Y [and others]
- Published
- 1994
7. A review paper on flood in a changing climate
- Author
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Gupta, Sh. Sachin
- Published
- 2021
- Full Text
- View/download PDF
8. Guidelines For Standardization Of Hydrological Papers Include Instructions And Recommendations For Standardization Of Hydrological Works For The Purpose Of Defining The Procedures For Conducting Regul
- Subjects
Hydrology ,Business, international ,European Union - Abstract
Contract awarded for Guidelines for standardization of hydrological papers include instructions and recommendations for standardization of hydrological works for the purpose of defining the procedures for conducting regular maintenance of [...]
- Published
- 2023
9. White paper on VU for Modeling Nuclear Energy Systems
- Author
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Turinsky, P
- Published
- 2009
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- View/download PDF
10. The impacts of LULC and climate change scenarios on the hydrology and sediment yield of Rib watershed, Ethiopia.
- Author
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Tsegaye L and Bharti R
- Subjects
- Environmental Monitoring, Ethiopia, Ribs, Water, Climate Change, Hydrology
- Abstract
Watershed-scale hydrology and soil erosion are the main environmental components that are greatly affected by environmental perturbations such as climate and land use and land cover (LULC) changes. The purpose of this study is to assess the impacts of scenario-based LULC change and climate change on hydrology and sediment at the watershed scale in Rib watershed, Ethiopia, using the empirical land-use change model, dynamic conversion of land use and its effects (Dyna-CLUE), and soil and water assessment tool (SWAT). Regional climate model (RCM) with Special Report on Emission Scenarios (SRES) and Representative Concentration Pathway (RCP) outputs were bias-corrected and future climate from 2025 to 2099 was analyzed to assess climate changes. Analysis of the LULC change indicated that there has been a high increase in cultivated land at the expense of mixed forest and shrublands and a low and gradual increase in plantation and urban lands in the historical periods (1984-2016) and in the predictions (2016-2049). In general, the predicted climate change indicated that there will be a decrease in precipitation in all of the SRES and RCP scenarios except in the Bega (dry) season and an increase in temperature in all of the scenarios. The impact analysis indicated that there might be an increase in runoff, evapotranspiration (ET), sediment yield, and a decrease in lateral flow, groundwater flow, and water yield. The changing climate and LULC result in an increase in soil erosion and changes in surface and groundwater flow, which might have an impact on reducing crop yield, the main source of livelihood in the area. Therefore, short- and long-term watershed-scale resource management activities have to be designed and implemented to minimize erosion and increase groundwater recharge., (© 2022. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
- Published
- 2022
- Full Text
- View/download PDF
11. Usability of Water-Sensitive Papers (WSPs) for Assessing Splash Erosion
- Author
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Taşkın Öztaş and Serdar Sari
- Subjects
Hydrology ,Splash ,Soil texture ,Soil Science ,04 agricultural and veterinary sciences ,010501 environmental sciences ,Particulates ,01 natural sciences ,Soil material ,Loam ,Soil water ,Significant positive correlation ,040103 agronomy & agriculture ,Erosion ,0401 agriculture, forestry, and fisheries ,Environmental science ,0105 earth and related environmental sciences ,Earth-Surface Processes - Abstract
Splash erosion, the first step in water erosion process, occurs because of raindrops collusion with soil aggregates and pushing soil particulates into the air. The objective of this study was to test the usability of water sensitive paper (WSPs) in assessment of splash erosion. Soil losses from three texturally different soils by splash erosion were determined under artificial rainfall conditions as a function of splash distance and direction. The results indicated that the amount of soil removed by splash erosion was significantly affected by soil texture, splash direction and distance, and was the highest in clay soil and the lowest in sandy loamy soil. About half of the splashed soil material moved down slope, 34% in the lateral direction, and 17% moved upslope. A significant positive correlation between the WSPs-D10 diameter and the WSPs-surface coverage rate was obtained, which indicates that the higher the D10 diameter, the higher the surface coverage rate. The results obtained in this study reveal that the WSPs cards could successfully be used and its parameters (WSPs-D10 diameter and WSPs-surface coverage rate) might be considered as a new approach in assessing and evaluating splash erosion.
- Published
- 2021
12. Discussions on the paper ‘Assessment of planform changes of the GangaRiver from Bhagalpur to Farakka during 1973–2019 using satellite imagery’
- Author
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S.K. Mazumder
- Subjects
Fluid Flow and Transfer Processes ,Hydrology ,Environmental Engineering ,Satellite imagery ,Sinuosity ,Silt ,Deposition (chemistry) ,Planform ,Geology ,Water Science and Technology ,Civil and Structural Engineering - Abstract
Using Landsat data, the authors have found the variation of width, shifting of bank lines, sinuosity and areas subjected to scouring and silt deposition in river Ganga for a stretch 175 km long fro...
- Published
- 2021
13. Filter Paper Method for the Determination of the Soil Water Retention Curve
- Author
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Raimundo Nonato de Assis Júnior, Francisco Chagas da Silva Filho, Adunias dos Santos Teixeira, Raimundo Alípio de Oliveira Leão, and Eurileny Lucas de Almeida
- Subjects
Hydrology ,business.product_category ,Moisture ,Filter paper ,Chemistry ,Soil Science ,Richards Chamber ,Haines Funnel ,Soil science ,Whatman No. 42 filter paper ,lcsh:S1-972 ,Water retention ,funil de Haines ,Water potential ,papel filtro Whatman No. 42 ,Soil water ,Calibration ,medicine ,Funnel ,medicine.symptom ,lcsh:Agriculture (General) ,business ,Agronomy and Crop Science ,Water content ,câmara de Richards - Abstract
High cost and long time required to determine a retention curve by the conventional methods of the Richards Chamber and Haines Funnel limit its use; therefore, alternative methods to facilitate this routine are needed. The filter paper method to determine the soil water retention curve was evaluated and compared to the conventional method. Undisturbed samples were collected from five different soils. Using a Haines Funnel and Richards Chamber, moisture content was obtained for tensions of 2; 4; 6; 8; 10; 33; 100; 300; 700; and 1,500 kPa. In the filter paper test, the soil matric potential was obtained from the filter-paper calibration equation, and the moisture subsequently determined based on the gravimetric difference. The van Genuchten model was fitted to the observed data of soil matric potential versus moisture. Moisture values of the conventional and the filter paper methods, estimated by the van Genuchten model, were compared. The filter paper method, with R2 of 0.99, can be used to determine water retention curves of agricultural soils as an alternative to the conventional method. RESUMO O elevado custo de aquisição e o longo período de tempo para obter a curva de retenção pelo método convencional utilizando a câmara de Richards e o funil de Haines restringem o uso desses, sendo interessante a busca por métodos alternativos que agilizem a rotina. Diante disso, avaliou-se o método do papel-filtro para obter a curva de retenção de água do solo em comparação com o método convencional. Coletaram-se amostras indeformadas de cinco diferentes solos. Utilizando-se o funil de Haines e a câmara de Richards, obtiveram-se as umidades nas tensões 2, 4, 6, 8, 10, 33, 100, 300, 700 e 1.500 kPa. No ensaio com o papel-filtro, obteve-se o potencial matricial da água por meio da equação de calibração do papel-filtro; posteriormente, a umidade foi estabelecida pela diferença gravimétrica. O modelo de van Genuchten foi ajustado aos dados de potencial matricial versus umidade. Comparando-se os métodos convencional e papel-filtro por meio dos valores de umidade estimados segundo o modelo de van Genuchten, concluiu-se que o método do papel-filtro, com R2 = 0,99, pode ser utilizado para obter as curvas de retenção de água dos solos agrícolas, sendo o seu uso como alternativa metodológica ao método convencional.
- Published
- 2015
14. The time of concentration application in studies around the world: a review.
- Author
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Almeida AK, de Almeida IK, Guarienti JA, and Gabas SG
- Subjects
- Time, Hydrology, Water Resources
- Abstract
The time of concentration (Tc) is the main hydrological parameter used to characterize the response of a given Hydrological Response Unit (HRU) to a precipitation event. Because of its importance, the determining Tc is an integral step in several studies involving runoff. Thus, this work presents an unprecedented review of the application of Tc in different lines of research involving water resources around the world. In this article, 1252 publications were listed, obtained from seven different databases, published by 2020, that presented the expressions "time of concentration," "runoff," and "watershed." The articles and conference papers obtained in this research were classified into 12 topics. The number of publications per topic and per country was measured and a cluster analysis was developed to verify the similarity of the distribution of topics per country. In addition, 125 equations applied in related publications for the estimation of Tc are also listed. Graphical abstract., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2022
- Full Text
- View/download PDF
15. 'Visual counting dataset and accociated MATLAB scripts supplementary to the paper 'Amsterdam urban water system as entry point of river plastic pollution'
- Subjects
Urban Water Systems (UWS) ,macrolitter transport dynamics ,plastic pollution ,WIMEK ,floating litter ,plastic soup ,hydrology ,macrolitter ,Hydrology and Quantitative Water Management ,macroplastic ,Hydrologie en Kwantitatief Waterbeheer - Abstract
This dataset is the supplementary material of Tasseron et al., (2022/2023): 'Amsterdam urban water system as entry point of river plastic pollution' [Submitted to a scientific journal for review]. The dataset contains the master datasheet [.xlsx] used for the analyses in the matlab script [.m], to determine emissions of floating plastic from the amsterdam urban water system to the IJ river.
- Published
- 2022
16. Landslide Hazard Zonation with Frequency Ratio Method (Case Study: Forest of Mazandaran Wood and Paper Industry)
- Subjects
Hydrology ,Watershed ,Soil texture ,Frequency ratio ,Environmental science ,Landslide ,Hazard - Published
- 2019
17. Ant-Inspired Metaheuristic Algorithms for Combinatorial Optimization Problems in Water Resources Management.
- Author
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Bhavya, Ravinder and Elango, Lakshmanan
- Subjects
GROUNDWATER monitoring ,WATER management ,ANT algorithms ,WATER distribution ,METAHEURISTIC algorithms ,MATHEMATICAL analysis ,COASTAL zone management ,CONFERENCE papers - Abstract
Ant-inspired metaheuristic algorithms known as ant colony optimization (ACO) offer an approach that has the ability to solve complex problems in both discrete and continuous domains. ACOs have gained significant attention in the field of water resources management, since many problems in this domain are non-linear, complex, challenging and also demand reliable solutions. The aim of this study is to critically review the applications of ACO algorithms specifically in the field of hydrology and hydrogeology, which include areas such as reservoir operations, water distribution systems, coastal aquifer management, long-term groundwater monitoring, hydraulic parameter estimation, and urban drainage and storm network design. Research articles, peer-reviewed journal papers and conference papers on ACO were critically analyzed to identify the arguments and research findings to delineate the scope for future research and to identify the drawbacks of ACO. Implementation of ACO variants is also discussed, as hybrid and modified ACO techniques prove to be more efficient over traditional ACO algorithms. These algorithms facilitate formulation of near-optimal solutions, and they also help improve cost efficiency. Although many studies are attempting to overcome the difficulties faced in the application of ACO, some parts of the mathematical analysis remain unsolved. It is also observed that despite its popularity, studies have not been successful in incorporating the uncertainty in ACOs and the problems of dimensionality, convergence and stability are yet to be resolved. Nevertheless, ACO is a potential area for further research as the studies on the applications of these techniques are few. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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18. ONE HUNDRED YEARS OF GEOLOGY AND HYDROLOGY PAPERS PUBLISHED IN THE PROCEEDINGS OF THE SOUTH DAKOTA ACADEMY OF SCIENCE.
- Author
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Rahn, Perry H.
- Subjects
HOMESTAKE Mine (S.D.) - Abstract
In 2015 The South Dakota Academy of Science celebrated one hundred years of publication of the Proceedings. This paper is written as part of the historic contributions to the Academy, focusing on the nearly two hundred papers dealing with geology and hydrology that have been published in the Proceedings. Emphasis in this paper is given to papers that are concerned with the Missouri River and the Homestake gold mine. [ABSTRACT FROM AUTHOR]
- Published
- 2015
19. Effects of Farmhouse Hotel and Paper Mill Effluents on Bacterial Community Structures in Sediment and Surface Water of Nanxi River, China
- Author
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Peng-Zhen Lu and Xiao-Ming Lu
- Subjects
DNA, Bacterial ,China ,Geologic Sediments ,Molecular Sequence Data ,Industrial Waste ,Soil Science ,Biology ,complex mixtures ,Rivers ,RNA, Ribosomal, 16S ,Tributary ,Environmental monitoring ,DNA Barcoding, Taxonomic ,Effluent ,Ecology, Evolution, Behavior and Systematics ,Hydrology ,geography ,geography.geographical_feature_category ,Bacteria ,Ecology ,business.industry ,digestive, oral, and skin physiology ,Sediment ,Agriculture ,Paper mill ,Microbial population biology ,Species richness ,Water Microbiology ,business ,Multiplex Polymerase Chain Reaction ,Surface water ,Water Pollutants, Chemical ,Environmental Monitoring - Abstract
The pyrosequencing technique was used to evaluate bacterial community structures in sediment and surface water samples taken from Nanxi River receiving effluents from a paper mill and a farmhouse hotel, respectively. For each sample, 4,610 effective bacterial sequences were selected and used to do the analysis of diversity and abundance, respectively. Bacterial phylotype richness in the sediment sample without effluent input was higher than the other samples, and the surface water sample with addition of effluent from the paper mill contained the least richness. Effluents from both the paper mill and farmhouse hotel have a potential to reduce the bacterial diversity and abundance in the sediment and surface water, especially it is more significant in the sediment. The effect of the paper mill effluent on the sediment and surface water bacterial communities was more serious than that of the farmhouse hotel effluent. Characterization of microbial community structures in the sediment and surface water from two tributaries of the downstream river indicated that various effluents from the paper mill and farmhouse hotel have the similar potential to decrease the natural variability in riverine microbial ecosystems.
- Published
- 2014
20. CALIBRATION OF WHATMAN GRADE 42 FILTER PAPER FOR SOIL SUCTION MEASUREMENT
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Rodrigo Salgado, Hobi Kim, and Monica Prezzi
- Subjects
Hydrology ,Suction ,Petroleum engineering ,Filter paper ,0211 other engineering and technologies ,Soil Science ,020101 civil engineering ,02 engineering and technology ,Sample (graphics) ,0201 civil engineering ,021105 building & construction ,Container (abstract data type) ,Calibration ,Environmental science ,Water content - Abstract
The filter paper technique consists of obtaining the equilibrium water content of a filter paper that is either in direct contact with a soil sample or inside an airtight container together with th...
- Published
- 2016
21. Polistes paper wasps use a transient floating vegetation mat in the Banhine wetlands outflow, Mozambique
- Author
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Markus Klemens Zaplata
- Subjects
Hydrology ,Geography ,geography.geographical_feature_category ,biology ,medicine ,Outflow ,Wetland ,Transient (oscillation) ,medicine.symptom ,Polistes ,Vegetation (pathology) ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Published
- 2020
22. Same River Twice: The Politics of Dam Removal and River Restoration. By Peter Brewitt. Corvallis: Oregon State University Press, 2019. xiv + 274 pp. Illustrations, maps, notes, bibliography, and index. Paper $24.95
- Author
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Coleen Fox
- Subjects
Hydrology ,History ,River restoration ,Dam removal ,Environmental Science (miscellaneous) ,Geology - Published
- 2020
23. Bending and buckling of wet paper.
- Author
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Minhee Lee, Seungho Kim, Ho-Young Kim, and Mahadevan, L.
- Subjects
RESEARCH methodology ,REFRIGERANTS ,HYDROLOGY ,NATURAL resources ,LIFE sciences - Abstract
Flat paper stained with water buckles and wrinkles as it swells and deforms out of the original plane. Here we quantify the geometry and mechanics of a strip of paper that swells when it imbibes water from a narrow capillary. Characterizing the hygroexpansive nature of paper shows that thickness-wise swelling is much faster than in-plane water imbibition, leading to a simple picture for the process by which the strip of paper bends out of the plane. We model the out-of-plane deformation using a quasi-static theory and show that our results are consistent with quantitative experiments. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
24. Management of treated pulp and paper mill effluent to achieve zero discharge
- Author
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Asghar, Muhammad Nadeem, Khan, Shahbaz, and Mushtaq, Shahbaz
- Subjects
Hydrology ,Pulp industry ,Company business management ,Environmental issues - Abstract
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jenvman.2007.07.004 Byline: Muhammad Nadeem Asghar, Shahbaz Khan, Shahbaz Mushtaq Keywords: Paper mill; Effluent reuse; Zero discharge; Stream flows; Groundwater pollution; Closed water cycle; Soil contamination; Irrigation Abstract: Pulp and paper mills are one of the major effluent generating industries in the world. In most cases, mill effluent (treated or raw) is discharged back into a river, creek, stream or other water body; resulting in negative environmental impacts, as well as social concerns, among the downstream users. Pulp and paper mill effluent management, which could result in zero discharge into downstream water bodies, would present the best management option to address socio-environmental concerns. This paper presents such an effort aimed at closing the water cycle by using treated effluent from the mill to irrigate forage and fodder crops for producing animals feed. The treated effluent is delivered from the mill through gravity into a winter storage dam of 490ML capacity. For irrigation applications on 110ha of farmland, which is 42% of the total farmland, the water is pumped from the winter storage dam to five individual paddocks with Centre Pivot (CP) irrigators and one rectangular paddock with a Soft Hose Travelling (SHT) irrigator. From October 2001 to June 2006, a total of 2651mm of wastewater was applied at the farm. The impact assessment results, obtained from field monitoring, investigations and analysis, indicated that the closed water cycle effluent management strategy described had resulted in a lessening of the impact on water resources usually associated with paper mills. However, social attitudes to the use of crops that have been irrigated with recycled waters and the resulting impact on market value of the produce may still be a major consideration. Author Affiliation: International Centre of Water for Food Security, Locked Bag 588, Building 24, Charles Sturt University, Wagga, NSW 2678, Australia Article History: Received 12 February 2007; Revised 1 June 2007; Accepted 2 July 2007
- Published
- 2008
25. Representing soil health practice effects on soil properties and nutrient loss in a watershed-scale hydrologic model.
- Author
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Evenson G, Osterholz WR, Shedekar VS, King K, Mehan S, and Kalcic M
- Subjects
- Carbon, Agriculture methods, Nutrients, Phosphorus analysis, Soil, Hydrology
- Abstract
Watershed-scale hydrologic models are commonly used to assess the water quality effects of agricultural conservation practices that improve soil health (e.g., cover crops and no-till). However, models rarely account for how these practices (i.e., soil health practices) affect soil physical and functional properties such as water holding capacity and soil aggregate stability, which may, in turn, affect water quality. We introduce a method to represent changes in soil physical and functional properties caused by soil health practices in the Soil and Water Assessment Tool (SWAT) model. We used the SWAT model's default representation of winter cover crops and no-till and modified soil descriptive parameters to depict soil health practice effects on soil properties. We assumed that the soil health practices would increase soil organic carbon (SOC), a principal indicator of soil health, by 0.01 g C g
-1 of soil and then estimated changes in other soil properties (e.g., water holding capacity) using SOC-based predictive equations and preceding literature. Results indicated that our soil property modifications had statistically significant effects on simulated hydrology and nutrient loss, though outputs were more substantially affected by the model's default representation of cover crops and no-till. Results also indicated that soil health practices can reduce nitrogen and total phosphorus loss but may increase dissolved reactive phosphorus loss. Our representation of soil health practices provides a more complete estimate of practice efficacy but underscores a need for additional observational data to verify results and guide further model improvements., (© 2022 The Authors. Journal of Environmental Quality © 2022 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.)- Published
- 2023
- Full Text
- View/download PDF
26. As the UN meets, make water central to climate action.
- Author
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Rahman MF, Mukherji A, Johannessen Å, Srivastava S, Verhagen J, Ovink H, Ligtvoet W, and Olet E
- Subjects
- Climate Change, Conservation of Water Resources legislation & jurisprudence, Conservation of Water Resources methods, Conservation of Water Resources trends, Environmental Policy legislation & jurisprudence, Environmental Policy trends, Hydrology, United Nations organization & administration, Water, Water Resources supply & distribution
- Published
- 2023
- Full Text
- View/download PDF
27. Meteorological forcing, and corresponding hydrological model input and output used in the paper: The impact of hydrological model structure on the simulation of extreme runoff events
- Subjects
WIMEK ,Extreme runoff ,ComputerApplications_MISCELLANEOUS ,Model structure ,FUSE ,Hydrology ,Hydrology and Quantitative Water Management ,Ensemble simulations ,Floods ,Modular Modelling Framework ,Droughts ,Hydrological extremes ,Hydrologie en Kwantitatief Waterbeheer - Abstract
The datasets used in Van Kempen et al., 2021 are included in this repository. These files consist of the original meteorological forcing, hydrological model input and hydrological model output. The README provides a description of the set-up of these datasets.
- Published
- 2021
28. Discussions on paper Embankment breaching at Indian Sunderbans–an assesment of altered primary sediment index properties and fluvial flow parameters
- Author
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S. K. Mazumder
- Subjects
Fluid Flow and Transfer Processes ,Hydrology ,geography ,Environmental Engineering ,geography.geographical_feature_category ,Sediment ,Fluvial ,West bengal ,Levee ,Geology ,Water Science and Technology ,Civil and Structural Engineering - Abstract
Authors have put in a lot of efforts in conducting the field and laboratory investigation to find the cause of frequent breaches in the embankments in Sunderban areas in West Bengal. Applied resear...
- Published
- 2021
29. Comments on the paper entitled 'The role of geomorphology, rainfall and soil moisture...'
- Author
-
Xiangzhou Xu
- Subjects
Hydrology ,Environmental science ,Water content - Published
- 2020
30. Supplement to the paper 'Groundwater dynamics between Planinsko Polje and springs of the Ljubljanica River, Slovenia' from Blatnik et al. (2019) published in Acta Carsologica 48/2
- Author
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Franci Gabrovšek, Cyril Mayaud, and Matej Blatnik
- Subjects
Hydrology ,geography ,geography.geographical_feature_category ,Plateau ,Hydrogeology ,Cave ,Polje ,Hydrograph ,Aquifer ,Groundwater ,Geology ,Earth-Surface Processes ,Water level - Abstract
The article of Blatnik et al. (2019) “Groundwater dynamics between Planinsko Polje and springs of the Ljubljanica River, Slovenia” published in Acta Carsologica, 48/2 focused on describing the hydrogeological behaviour of the aquifer between Planinsko Polje and the springs of the Ljubljanica River. The authors analysed the effect of different high water events that occurred between January 2015 and May 2018. Interpretations were based on hydrographs obtained by continuous measurements of water level, temperature and specific electric conductivity in selected ponors, springs and water active caves located in the area between Planinsko Polje and the springs of the Ljubljanica River. Through these interpretations, different conceptual hydrological models about the dynamics and directions of the flow in the aquifer have been proposed and tested. A flow connection was proposed between the Hrušica Plateau, estavelles located at the NW border of Planinsko Polje, and caves Gradišnica (W2) and Gašpinova Jama (W3) close to town Logatec. In this supplement, we provide new data recorded during an unusual hydrological event in August 2018. These further support and stress the importance of the connection between the Hrušica Plateau and Logatec region (W2 and W3).
- Published
- 2020
31. Seasonal Hydrochemical Characterization and Groundwater Quality Delineation Based on Matter Element Extension Analysis in a Paper Wastewater Irrigation Area, Northwest China
- Author
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Rui Tian, Peiyue Li, Xiaodong He, and Song He
- Subjects
Hydrology ,geography ,Irrigation ,geography.geographical_feature_category ,Hydrogeology ,Health, Toxicology and Mutagenesis ,0208 environmental biotechnology ,Public Health, Environmental and Occupational Health ,02 engineering and technology ,Groundwater recharge ,010501 environmental sciences ,01 natural sciences ,Pollution ,020801 environmental engineering ,Alluvial plain ,Groundwater pollution ,Environmental science ,Water quality ,Water resource management ,Groundwater ,0105 earth and related environmental sciences ,Water Science and Technology ,Water well - Abstract
The current study was carried out to delineate the seasonal hydrochemical characteristics and to quantify the suitability of groundwater for drinking and irrigation purposes in an alluvial plain adjacent to a paper wastewater irrigation zone, northwest China. Groundwater samples were collected from 14 groundwater monitoring wells in pre-monsoon, monsoon and post-monsoon seasons, respectively. Statistical analysis and Chadha diagram were used to delineate the groundwater hydrochemical characteristics. The matter element extension analysis (MEEA) model was proposed to quantify the overall groundwater quality. Irrigation water quality indicators were applied to assess the suitability of groundwater for irrigation purpose. The research results show that the hydrochemical facies for the majority of the groundwater samples is SO4·Cl–Na type with some minor hydrochemical facies of HCO3–Ca·Mg, HCO3–Na, and Cl·SO4–Ca·Mg types. The sequences of ions are Na+ > Ca2+ > Mg2+ > K+ for cations, and HCO3 − > Cl− > SO4 2− > CO3 2− for anions. The major ions and contaminants in the groundwater are controlled by multiple factors including hydrogeological conditions, rock weathering, water–rock interactions and human activities. The values of pH, TDS and TH show reduction in the monsoon season, indicating slight improvement of water quality during the monsoon season. Water quality assessment results based on MEEA show that the overall groundwater quality in the wastewater irrigation zone is generally fair to poor quality. Some groundwater samples are even classified as very poor quality, which is unsuitable for human consumption. They are also unsuitable for irrigation because of potential sodium hazard and salinity hazard. Groundwater from the Yellow River irrigation zone and the alluvial plain is generally suitable for domestic and irrigation uses. Some local water sampling locations may experience water quality improvement during the monsoon season, which, however, will generally not affect the final water quality classification for domestic and irrigation purposes. Interestingly, the study also finds that the variation trend of the correlation degree computed from MEEA can be useful in determining water quality improvement. This study may provide insights for people to make educated decisions in efficient groundwater quality protection and sustainable groundwater quality management.
- Published
- 2017
32. Organic pollutants in paper-recycling process water discharge areas: First detection and emission in aquatic environment
- Author
-
Hitoshi Fukazawa, Masanori Terasaki, Masakazu Makino, and Yukinori Tani
- Subjects
Paper ,Conservation of Natural Resources ,Health, Toxicology and Mutagenesis ,Industrial Waste ,Fresh Water ,Chemical Fractionation ,Toxicology ,Waste Disposal, Fluid ,Gas Chromatography-Mass Spectrometry ,Japan ,Polycyclic Compounds ,Water pollution ,Effluent ,Pollutant ,chemistry.chemical_classification ,Hydrology ,Discharge ,Sediment ,General Medicine ,Pollution ,Paper recycling ,Hydrocarbon ,chemistry ,Environmental chemistry ,Chromatography, Gel ,Surface water ,Water Pollutants, Chemical ,Environmental Monitoring - Abstract
In this study, eight compounds have been identified and quantified from the samples collected from paper-recycling process water discharge areas. In particular, five aryl hydrocarbons, including a novel chlorinated aryl ether, were identified for the first time as environmental pollutants. In the effluent stream, concentration levels of up to 1600 microg L(-1) and 190 microg g(-1) were detected in the surface water and surface sediment, respectively. The results of this study have raised concerns regarding the organic chemicals used in thermal paper and the environmental consequences of their release.
- Published
- 2008
33. Studies Conducted at Xi'an Jiaotong University on Soil Science and Hydrology Recently Reported [Reply To Comments On the Paper 'evaluating and Modelling Splash Detachment Capacity Based On Laboratory Experiments' By Pia Kinnell (2019). Catena
- Subjects
Hydrology ,Soil erosion -- Models -- Mechanical properties ,Geological research ,Health ,Science and technology - Abstract
2021 DEC 10 (NewsRx) -- By a News Reporter-Staff News Editor at Science Letter -- Current study results on Science - Soil Science and Hydrology have been published. According to [...]
- Published
- 2021
34. Fifteen years of publishing the papers on the impact of biological factors on hydrological processes in Biologia.
- Author
-
Lichner, Ľubomír, Hegedüšová, Katarína, Farkas, Csilla, Tesař, Miroslav, and Rajkai, Kálmán
- Subjects
FOREST soils ,WATER shortages ,WATER supply ,SOIL degradation ,FOREST fires ,HYDROLOGY ,WATERSHED management - Abstract
Special issue on the impact of biological factors on hydrological processes, edited by the authors of this Foreword, brings together 11 full-text papers on these complex interactions, ranging in scale from storing the water by lichen species to competing the nations for increasingly scarce water resources in securitized transboundary watersheds. In addition to these "boundary-scale" biohydrology papers, 4 papers assess the impact of land use on soil properties, 3 papers estimate the effect of biological factors on the downward and upward movements of water in the vadose zone of soil, and 2 papers evaluated the amount of greenhouse gas emissions from agriculturally utilized soil and forest fires. We would like to conclude by expressing our hope that the papers published in the present special issue will act as a stimulus for initiating new research projects and contribute to finding solutions to the global threats of water scarcity and soil degradation. It is absolutely crucial to increase our chances of surviving the current climate change and to reach a more sustainable society in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
35. Waste-generated gas at the Waste Isolation Pilot Plant: Papers presented at the Nuclear Energy Agency Workshop on gas generation and release from radioactive waste repositories
- Author
-
Webb, S [eds.]
- Published
- 1991
36. Seasonal Bacteriological Analysis of Gola River Water Contaminated with Pulp Paper Mill Waste in Uttaranchal, India
- Author
-
Abhay Raj, Ram Chandra, and Shail Singh
- Subjects
Paper ,India ,Industrial Waste ,Management, Monitoring, Policy and Law ,Bacterial growth ,Phosphates ,chemistry.chemical_compound ,Animal science ,Chlorides ,Phenols ,Rivers ,Nitrate ,Most probable number ,Gram-Negative Bacteria ,medicine ,Water Pollutants ,Water pollution ,Effluent ,General Environmental Science ,Hydrology ,Nitrates ,business.industry ,Sodium ,Paper mill ,General Medicine ,Seasonality ,medicine.disease ,Pollution ,chemistry ,Environmental science ,Seasons ,Water Microbiology ,business ,Surface water ,Environmental Monitoring - Abstract
The seasonal physico-chemical and microbial quality of Gola river water has been analyzed after confluence of pulp paper mill waste. The study revealed that it has enhanced 20-30 times pollution load of BOD, COD, TDS, TSS, sulphate, chloride, sodium, nitrate, potassium, lignin and phenol after mixing of pulp paper mill waste with river water in all season. Further, it induced the bacterial growth by increasing most probable number value of E. coli was 1.57 x 10(4), 1.6 x 10(4), 1.37 x 10(4) and SPC count was 1.68 x 10(4), 1.64 x 10(4), 1.67 x 10(4)/100 ml during summer, monsoon, winter respectively. While the most probable number value in river water before mixing of pulp paper mill waste was 1.4 x 10(2), 1.82 x 10(2), 1.5 x 10(2) and SPC count was 2.8 x 10(3), 2.89 x 10(3), 2.78 x 10(3)/100 ml during summer, monsoon and winter respectively. This indicated from 88-114 fold increase in most probable number value of E. coli and 56.55-60.0 times increase in SPC count of river water after mixing of effluent in summer, monsoon and winter. Moreover, the most probable number value in effluent itself before mixing was 3.4 x 10(2), 3.3 x 10(2), 2.8 x 10(2) and SPC count was 6 x 10(4), 6.5 x 10(4), 6 x 10(4)/100 ml during summer, monsoon, winter, respectively. Furthermore, it was revealed that the seasonal variation also regulated the bacterial population dynamics as per the physico-chemical quality, in which E. coli was found highest at the rate of (5.9 x 10(4)), E. aerogenes (5.3 x 10(4)), P. aeruginosa (1.3 x 10(4)), S. aureus (3.2 x 10(3)), K. pneumoniae (2.6 x 10(4)), Enteritidis (1.1 x 10(4)) on monsoon season and V. cholerae (7.4 x 10(2)), V. vulnificus (9.2 x 10(2))/100 ml in river water when contaminated with pulp paper mill waste in monsoon season. Thus, the monsoon season showed presence of FC and TC indicated the thermo-tolerant and disease causing group of bacterial population in effluent and its sequence was observed as monsoon>summer>winter. This indicated the growth of many pathogenic and non-pathogenic bacteria for health hazards with contamination of pulp paper waste in aquatic ecosystem within the vicinity of pulp paper mill industry.
- Published
- 2006
37. The Influence of Pulp and Paper Mill Sewage on the Chemical Composition Sediments of the Kondopoga Bay of Lake Onega
- Author
-
Natalia A. Belkina
- Subjects
Hydrology ,Pollution ,business.industry ,Pulp (paper) ,media_common.quotation_subject ,Sewage ,Sediment ,Paper mill ,engineering.material ,engineering ,Environmental science ,business ,Bay ,Chemical composition ,media_common - Abstract
The Kondopoga bay has been a sewage recipient of the Kondopoga pulp and paper mill, since 1929. The aim of this study is to show the effect of pulp and paper mill sewage on the sediment quality, to demonstrate the dynamics of sediment organic pollution spreading in 1964 - 2010. Presently, the study area of Kondopoga bay is divided into three zones. The sediments of zone I, located near the pulp and paper mill, consist of very slowly decomposable waste matter. The sediments of zone II, located at 4 km away from pulp and paper mill, differ from the rest by intensive salts flux across the sediment-water interface. Accumulation and transformation of organic suspended substances is observed in the deepest area (zone III). The change of the chemical composition of the sediments showed the tendency of polluted sediments extension and spreading of organic pollution all over the Kondopoga bay. Transformed organic suspended substances come from the bay in the open part of Lake Onega.
- Published
- 2014
38. Frederick J. Swanson’s 1976–1979 papers on the effects of instream wood on fluvial processes and instream wood management
- Author
-
Markus Stoffel and Virginia Ruiz-Villanueva
- Subjects
ddc:333.7-333.9 ,Hydrology ,Organic debris ,River ecosystem ,History ,010504 meteorology & atmospheric sciences ,business.industry ,05 social sciences ,Geography, Planning and Development ,Environmental resource management ,0507 social and economic geography ,Large wood ,Fluvial ,Swanson ,01 natural sciences ,ddc:550 ,Earth and Planetary Sciences (miscellaneous) ,General Earth and Planetary Sciences ,business ,050703 geography ,Woody debris ,Organic material ,0105 earth and related environmental sciences - Abstract
The recognition of instream wood as a key element of river ecosystems and a driver of fluvial processes is now well established, but it did not start until the second half of the twentieth century. A landmark reference work which led to the development of concepts and methods which are still employed in instream wood studies today was the work by Frederick J. Swanson and his papers published between 1976 and 1979. In this article we revisit these papers, highlighting the pioneering observations about the effects of instream wood on fluvial morphology, the description of the instream wood sources and recruitment processes and the discussion about management of wood in rivers. The instream wood research has grown dramatically since the late 1970s, however many knowledge gaps remain; this short historical review illustrates the importance of continuing and developing those research lines into the future.
- Published
- 2017
39. Determining algal-available phosphorus in pulp and paper mill effluents: Algal assays vs routine phosphorus analyses
- Author
-
Petri Ekholm, Hannu Rita, Timo Jouttijärvi, Maarit Priha, and Hannu Nurmesniemi
- Subjects
Health, Toxicology and Mutagenesis ,Biological Availability ,Industrial Waste ,engineering.material ,Toxicology ,Bioassay ,Effluent ,Finland ,Hydrology ,Chromatography ,business.industry ,Chemistry ,Pulp (paper) ,Eukaryota ,Forestry ,Phosphorus ,Paper mill ,General Medicine ,Eutrophication ,biochemical phenomena, metabolism, and nutrition ,Pollution ,Bioavailability ,Wastewater ,engineering ,Biological Assay ,Water quality ,business ,Water Pollutants, Chemical ,Environmental Monitoring - Abstract
We determined the potentially algal-available P (P(aa)) in pulp and paper mill effluents by two bioassay techniques (a dual-culture assay and a batch approach) and compared it with chemically analysed P (total P, total dissolved P, reactive P, dissolved reactive P and dissolved hydrolysable P). The mean P(aa) given by the dual-culture assay was within a 40% range of that given by the batch approach. The P(aa) obtained by both bioassays differed from total P. Dissolved reactive P appeared to be the most readily available chemical P fraction, but other P fractions also contributed to P(aa). The analysis of reactive P, which involves direct staining of an unfiltered sample, best approximated the P(aa) given by the dual-culture assay (relative error 9%). The results suggest that assessment of eutrophying effluent P can be improved by analysing simple chemical P fractions in wastewater. The fractions to be analysed, however, may be site specific.
- Published
- 2007
40. DipTest: A litmus test for E. coli detection in water.
- Author
-
Gunda, Naga Siva Kumar, Dasgupta, Saumyadeb, and Mitra, Sushanta K.
- Subjects
AQUATIC microbiology ,ESCHERICHIA coli ,LITMUS paper (Testing strips) ,CHEMOTAXIS ,WATER sampling - Abstract
We have developed a new litmus paper test (DipTest) for detecting Escherichia coli (E. coli) in water samples by performing enzymatic reactions directly on the porous paper substrate. The paper strip consists of a long narrow piece of cellulose blotting paper coated with chemoattractant (at bottom edge), wax hydrophobic barrier (at the top edge), and custom formulated chemical reagents (at reaction zone immediately below the wax hydrophobic barrier). When the paper strip is dipped in water, E. coli in the water sample is attracted toward the paper strip due to a chemotaxic mechanism followed by the ascent along the paper strip toward the reaction zone due to a capillary wicking mechanism, and finally the capillary motion is arrested at the top edge of the paper strip by the hydrophobic barrier. The E. coli concentrated at the reaction zone of the paper strip will react with custom formulated chemical reagents to produce a pinkish-red color. Such a color change on the paper strip when dipped into water samples indicates the presence of E. coli contamination in potable water. The performance of the DipTest device has been checked with different known concentrations of E. coli contaminated water samples using different dip and wait times. The DipTest device has also been tested with different interfering bacteria and chemical contaminants. It has been observed that the different interfering contaminants do not have any impact on the DipTest, and it can become a potential solution for screening water samples for E. coli contamination at the point of source. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
41. Hot-Soda Process Paper Mill Effluent Effects on Fishes and Macroinvertebrates in the Narayani River, Nepal
- Author
-
David P. Gillette, Mahendra Mahato, David R. Edds, and Tirtha M. Maskey
- Subjects
Hydrology ,Detritus ,business.industry ,Ecology ,digestive, oral, and skin physiology ,food and beverages ,Paper mill ,Aquatic Science ,Upstream and downstream (DNA) ,Abundance (ecology) ,Benthic zone ,Environmental science ,Ecosystem ,Species richness ,business ,Effluent ,Ecology, Evolution, Behavior and Systematics - Abstract
Although the effects of effluent from many paper production processes have been studied extensively, the effects of hot-soda process effluent have not been investigated. To determine the impacts of this process on a riverine ecosystem in Nepal, we sampled fishes, macroinvertebrates, and physicochemical/microhabitat parameters of the Narayani River in south-central Nepal upstream and downstream from the Bhrikuti Paper Mill before and after its opening. After the mill began operation, species richness of fish collections decreased downstream, relative to the upstream reference site. We also found a decrease in abundance of macroinvertebrates, as well as a downstream decrease in dissolved oxygen and an increase in alkalinity. Changes in benthic microhabitat were also apparent, including an increase in plant fiber detritus. Our results suggest that the environmental impact of this untreated soda-process effluent is similar to that of effluent from other paper production processes, and that operation ...
- Published
- 2002
42. Hydrological impacts of future climate and land use/cover changes in the Lower Mekong Basin: a case study of the Srepok River Basin, Vietnam.
- Author
-
Nhi PTT, Khoi DN, Trang NTT, Van Ty T, and Fang S
- Subjects
- Water Movements, Vietnam, Environmental Monitoring, Climate Change, Soil, Water, Hydrology, Rivers
- Abstract
This study presents hydrological impacts of future climate change (CC) and land use/cover change (LUCC) for the Srepok River Basin (SRB) in the Vietnam's Central Highlands. The hydrology cycle of this basin was reproduced using Soil and Water Assessment Tool (SWAT) allowing an evaluation of hydrological responses to CC and LUCC. Future climate scenarios of the 2015-2100 period under Representative Concentration Pathways (RCP) 4.5 simulated by five General Circulation Models (GCMs) and LUCC scenario in 2050 were developed. Compared to the reference scenario (1980-2005), future LUCC increases the streamflow (0.25%) and surface runoff (1.2%) and reduces the groundwater discharge (2.1%). Climate change may cause upward trends in streamflow (0.1 to 2.7%), surface runoff (0.4 to 4.3%), and evapotranspiration (0.8 to 3%), and a change in the groundwater discharge (- 1.7 to 0.1%). The combination of CC and LUCC increases the streamflow (0.2 to 2.8%), surface runoff (1.6 to 5.6%), and evapotranspiration (1.0 to 3.1%), and reduces the groundwater discharge (1.5 to 2.7%) with respect to the reference scenario. Moreover, the results noted that the water scarcity may happen in the dry-seasonal months., (© 2022. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
- Published
- 2022
- Full Text
- View/download PDF
43. Reply to Comment on 'Automatic estimation of aquifer parameters using long-term water supply pumping and injection records': paper published in Hydrogeology Journal (2016) 24: 1443–1461, by Ning Luo and Walter A. Illman
- Author
-
Ning Luo and Walter A. Illman
- Subjects
Estimation ,Hydrology ,geography ,Hydrogeology ,geography.geographical_feature_category ,business.industry ,0208 environmental biotechnology ,Water supply ,Aquifer ,02 engineering and technology ,020801 environmental engineering ,Term (time) ,Earth and Planetary Sciences (miscellaneous) ,business ,Geology ,Water Science and Technology - Published
- 2017
44. GEOMORPHOLOGICAL APPROACH TO THE RIVER RUNOFF EVALUATION IN THE GEOLOGICAL PAST (Paper 1. Regime Equations)
- Subjects
Hydrology ,Flood discharge ,Flood myth ,Environmental science ,Snow ,Permafrost ,Earth-Surface Processes - Abstract
Reconstruction of river palaeodischarges based on the morphology of modern rivers meets the following requirements to the empirical regime equations in use: 1) they should cover the broad range of environment conditions to include the ancient conditions of river formation; 2) they should be controlled by a small number of variables selected according to the needs of the problem; 3) the option must exist to use a relationship that is suitable for the palaeoenvironmental conditions. These principles were applied to calculate discharges that formed the Lateglacial palaeochannels 5–15 times wider than the present-day rivers. The calculated mean annual palaeodischarges were only 2–4 times larger than those of the modern rivers. These palaeodischarges have been produced by an annual rainfall of about equal to or only slightly larger than the recent one. The main environmental conditions were: 1) a long winter, the accumulation of sufficient (300–700 mm) amount of water equivalent in snow; 2) short and sharp flood; 3) small water losses during this flood due to low soil permeability under permafrost conditions; 4) long low-water period, when these large channels were almost dry. Therefore, the mean annual discharge appeared to have risen substantially less than did the flood discharge.
- Published
- 2017
45. Sediment management of Nathpa Dam from heavy silt in river Satluj (India) preparing a one column paper with word for windows
- Author
-
V.K. Thakur
- Subjects
Hydrology ,Sediment ,Silt ,Column (database) ,Geology ,Word (computer architecture) - Published
- 2019
46. Papers on civil and hydraulic engineering
- Author
-
William Hogarth Robertson Nimmo
- Subjects
Hydrology ,geography ,geography.body_of_water ,Hydrology (agriculture) ,geography.geographical_feature_category ,Flood myth ,Hydraulic engineering ,Sluice ,Drainage basin ,Flood mitigation ,Environmental science ,Tidal river ,Surface runoff - Abstract
Contents3. Note on Hydrology of the Great Lake.4. The Hydro-Electric Power of Tasmania (1925)6. Hydrology of Floods in the Brisbane River 7. Water Conservation and Flood Protection. This is a technical description of Somerset Dam. (1940)9. The World's Water Supply and Australia's Portion of It (1949)10. Storage of Water and Irrigation with Particular Reference to Tropical Seasonal Rainfall (1951)11. The Economics of Flood Mitigation 12. The Hydro-Electric Resources of Queensland in North Eastern Australia (1956)13. Derivation of Runoff from Rainfall and Temperature14. Symposium on Rainfall and Runoff15. The Flow of Water Through Dams and Their Foundations with Special 22. Torrens Lake Sluice Gates24. The Design of Canning Dam25. The Manner of Flow of a River in Flood and Flood Warnings27. The Hydraulic Control Flume as a Measuring Device Warnings28. River Flood Measurements from Height Records29. The Influence of Area Shape on Runoff30. Tidal River Regulation 31. Intensity, Frequency and Distribution of Heavy Rainfall in NSW32. Studies of Droughts in the Sydney Catchment Areas 34. Investigation of Potential Water Power Resources 36. Burrinjuck Dam - Strengthening and Enlargement39. The Hydraulic Design of Stilling Basins40. Some Aspects of the Hydrology of North Pine River41. Recent Developments in Nile Control & Analytic Study of the Storage Losses in the Nile Basin with Special Reference to ASWAN Dam Reservoir and the High Dam Reservoir
- Published
- 2019
47. Review paper Study on the effects of marine obstructions on the movement of radionuclides in the Red Sea : Assessing the effects of Future Nuclear Power Plant In Sudan Harpour Red Sea
- Author
-
Zhou Tao, Li Bing, Li Zichao, and EbtihalMohammed Hamid Abdelkariem
- Subjects
Hydrology ,Radionuclide ,Sea surface temperature ,law ,fungi ,Nuclear power plant ,Radioactive waste ,Environmental science ,Nuclear plant ,law.invention - Abstract
This review aims to study the obstruction of the movement of the radionuclide in the Red Sea in case of establishing Nuclear power plant, the second goal is to follow the radionuclide dispersion in red sea according to Anthropogenic releases and to understand which type of obstruction effect radionuclide dispersion in the aquatic surface. sediments A varied radioactive materials are produced during normal operation of nuclear power plant, this material ultimately discharge to the environment, the Nuclear Plant monitored to limit the discharge to void significant effect to environment, the amount of radionuclides discharge and their pathways were calculated, on the other hand, this calculation is also set as references data in case of accidental emission of radionuclides to the surrounding environment . in the aquatic system the main sources of radionuclides materials are fallout from atmospheric nuclear tests and accidents ( Chernobyl and Fukushima).
- Published
- 2019
48. Application of paper disc velocimeter for groundwater flow measurement in tropical peatland
- Author
-
FA Hutapea, RD Ramawilis, K. Yamamoto, Sigit Sutikno, and Rinaldi
- Subjects
Hydrology ,Groundwater flow ,Tropical peatland ,Environmental science - Abstract
This paper presents the application of paper disc velocimeter (PDV) for groundwater flow measurement in tropical peatland. The PDV is a simple and low-cost method used without electricity that is developed by Yamaguchi University to measure groundwater flow. This method was applied to understand the groundwater hydraulic in the tropical peatland as the impact of rewetting efforts using canal blocking. A study site at Lukun village, Kepulauan Meranti Regency, Riau in Pulau Tebing Tinggi peatland hydrological unit (PHU) was picked up for the application of this method. Five deep wells in each transect of three transects totally were prepared for the measurement using PDV. The Transect-1 and Transect-2 were located at the upstream side of canal block with a distance of about 400 m and 100 m respectively. The Transect-3 was located on the downstream side of the canal block with a distance of about 100 m. The results showed that the groundwater velocity in the upstream side of canal block tends to lower than that in the downstream side. This was because the groundwater level in the upstream was maintained in a stable condition due to the canal blocking. This finding showed the impact of canal blocking on the rewetting effort in the tropical peatland.
- Published
- 2020
49. Groundwater Flow Analysis at Coastal Peatland Area of Bengkalis Island Using Paper Disk Velocimeter (PDV)
- Author
-
Muhammad Agung Pribadi, Sigit Sutikno, and Koichi Yamamoto
- Subjects
Hydrology ,History ,Peat ,Groundwater flow ,Environmental science ,Computer Science Applications ,Education - Abstract
Bengkalis Island is an island with about 89% of its land area consisting of peatlands. Because of the land use conversion from peat swamp forest to plantation and shrubs, the island has experienced massive degradation, such as abrasion, subsidence and land fires. The abrasion at western area of Bengkalis Island has occurred since the last 30 years with an abrasion rate up to 30 m/year. The previous studies showed that this is because of unbalanced hydrological conditions. The more advanced research related to groundwater flow impact on degraded peatland in Bengkalis Island is important in order to understand the mitigation alternative. To study the groundwater flow on the peat coast of Bengkalis Island, this study used Paper Disk Velocimeter (PDV) for measuring at 2 monitoring wells. The measurements were carried out at a depth of 2 m and 5.5 m and a depth of 2 m, 3 m and 4 m for Well-1 and Well-2 respectively. All measurements were carried out for 3 times on different month. This research found that the groundwater slope dropped significantly near the coastal line. This made the groundwater discharge to the coastal area become higher that may cause failure on the coastal cliff. The failure was identified as the initial phenomenon of the abrasion mechanism in the Bengkalis coast.
- Published
- 2020
50. Response of the fish assemblage to a saltwater barrier and paper mill effluent in the Lower Neches River (Texas) during drought.
- Author
-
Pizano-Torres, Rebecca I., Roach, Katherine A., and Winemiller, Kirk O.
- Subjects
- *
STREAMFLOW , *DROUGHTS & the environment , *INDUSTRIAL waste & the environment , *SALINE waters ,ENVIRONMENTAL aspects - Abstract
In 2011, Texas experienced record heat and drought that escalated concerns about environmental flows for rivers. In response to these worries, fishes and water quality were sampled in the Lower Neches River, Texas, from May-August 2012 during continued drought. Potential effects of hydrology on environmental parameters and assemblages of small (seine samples) and large (gillnet samples) fishes were evaluated at multiple locations. Approximately 1 km downstream from the saltwater barrier, paper mill effluent discharges into the river. Salinity was higher and dissolved oxygen lower below the saltwater barrier during low-flow intervals. Fish species richness in seine samples, was higher when the barrier was open, and species richness for both gear types was lowest at sites closest to the paper mill effluent discharge. Overall, species richness was higher at sites below the barrier, with more estuarine and marine species present. When the barrier was closed, richness and abundance of sensitive freshwater species were lower below the barrier. Closure of the barrier during drought results in accumulation of dissolved organic compounds from paper mill effluent and lower dissolved oxygen in the reach below the barrier. To sustain biodiversity in the system, subsistence flows must pass across the saltwater barrier during droughts. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
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