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6 results on '"Nadezhda Voropay"'

1. Validation of Remotely Sensed Land Surface Temperature at Lake Baikal’s Surroundings Using In Situ Observations

Author

Egor Dyukarev, Nadezhda Voropay, Oksana Vasilenko, and Elena Rasputina

Subjects
land surface temperature, validation, neural network, Lake Baikal, remote sensing, Agriculture
Abstract

The accuracy of Land Surface Temperature (LST) products retrieved from satellite data in mountainous-coastal areas is not well understood. This study presents an analysis of the spatial and temporal variability of the differences between the LST and in situ observed air and surface temperatures (ISTs) for the southeastern slope of Lake Baikal’s surroundings. The IST was measured at 12 ground observation sites located on the southeastern macro-slope of the Primorskiy Ridge (Baikal, Russia) within an elevation range of 460–1656 m above sea level from 2009 to 2021. LST was estimated using 617 Landsat (7 and 8) images from 2009–2021, taking into account brightness temperature, surface emissivity and vegetation cover fraction. The comparison of the LST from satellite data and the IST from ground observation showed relatively high differences, which varied depending on the season and site type. A neural network was suggested and calibrated to improve the LST data. The corrected remote-sensed temperature was found to reproduce the IST very well, with mean differences of about 0.03 °C and linear correlation coefficients of 0.98 and 0.95 for the air and surface IST.

Published
2024
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2. Bias-corrected monthly precipitation data over South Siberia for 1979-2019

Author

Anna Ryazanova, Nadezhda Voropay, and Egor Dyukarev

Subjects
Precipitations, Reanalysis, South Siberia, Bias correction, Downscaling, Computer applications to medicine. Medical informatics, R858-859.7, Science (General), Q1-390
Abstract

Bias-Corrected Precipitation data over South Siberia (CPSS) contains monthly precipitation data for the area within the coordinates 50–65 N, 60–120 E for the period from January 1979 to December 2019. CPSS data were combined from monthly total precipitation data from ERA5 reanalysis European Centre for Medium-Range Weather Forecasts and precipitation data records from ground weather stations. The ERA5 data were scaled according to the derived scale coefficient. The linear scaling coefficient for each month and weather station were calculated and extrapolated to the study area using the ordinary kriging method. Data spatial resolution is 0.25° in the latitude and 0.25° in the longitude. CPSS reproduces the spatial variability of precipitation more precisely than can be done from the weather station observation network. The CPSS dataset will be useful for the study of extreme precipitation events and allow for more accurate hydrologic risk assessment at a regional level based on climate model results.

Published
2021
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3. Overview: Recent advances in the understanding of the northern Eurasian environments and of the urban air quality in China – a Pan-Eurasian Experiment (PEEX) programme perspective

Author

Hanna K. Lappalainen, Tuukka Petäjä, Timo Vihma, Jouni Räisänen, Alexander Baklanov, Sergey Chalov, Igor Esau, Ekaterina Ezhova, Matti Leppäranta, Dmitry Pozdnyakov, Jukka Pumpanen, Meinrat O. Andreae, Mikhail Arshinov, Eija Asmi, Jianhui Bai, Igor Bashmachnikov, Boris Belan, Federico Bianchi, Boris Biskaborn, Michael Boy, Jaana Bäck, Bin Cheng, Natalia Chubarova, Jonathan Duplissy, Egor Dyukarev, Konstantinos Eleftheriadis, Martin Forsius, Martin Heimann, Sirkku Juhola, Vladimir Konovalov, Igor Konovalov, Pavel Konstantinov, Kajar Köster, Elena Lapshina, Anna Lintunen, Alexander Mahura, Risto Makkonen, Svetlana Malkhazova, Ivan Mammarella, Stefano Mammola, Stephany Buenrostro Mazon, Outi Meinander, Eugene Mikhailov, Victoria Miles, Stanislav Myslenkov, Dmitry Orlov, Jean-Daniel Paris, Roberta Pirazzini, Olga Popovicheva, Jouni Pulliainen, Kimmo Rautiainen, Torsten Sachs, Vladimir Shevchenko, Andrey Skorokhod, Andreas Stohl, Elli Suhonen, Erik S. Thomson, Marina Tsidilina, Veli-Pekka Tynkkynen, Petteri Uotila, Aki Virkkula, Nadezhda Voropay, Tobias Wolf, Sayaka Yasunaka, Jiahua Zhang, Yubao Qiu, Aijun Ding, Huadong Guo, Valery Bondur, Nikolay Kasimov, Sergej Zilitinkevich, Veli-Matti Kerminen, Markku Kulmala, Institute for Atmospheric and Earth System Research (INAR), INAR Physics, Global Atmosphere-Earth surface feedbacks, Polar and arctic atmospheric research (PANDA), Viikki Plant Science Centre (ViPS), Department of Forest Sciences, Forest Ecology and Management, Ecosystem processes (INAR Forest Sciences), Helsinki Institute of Physics, Ecosystems and Environment Research Programme, Helsinki Institute of Urban and Regional Studies (Urbaria), Helsinki Institute of Sustainability Science (HELSUS), Urban Environmental Policy, Micrometeorology and biogeochemical cycles, Zoology, Natural Sciences Unit, Aleksanteri Institute - Finnish Centre for Russian and East European Studies, Russian and Eurasian Studies (Aleksanteri Institute), Suomen ympäristökeskus, The Finnish Environment Institute, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), 10663, 2858, 32771, 311932, 314798/99, 315203, 317999, 337549, 19-05-50024, 561975-EPP-1-2015-1-FI-EPPKA2-CBHE-JP, 606953, 654109, 0148-2019-0006, 13.1902.21.0003, 1 075-15-2021-574, TRAKT-2018, 13-01-20/39, European Research Council, ERC: 742206, 850614, Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी, National Natural Science Foundation of China, NSFC: 41275137, Russian Foundation for Basic Research, РФФИ: 17-29-05027, 17-29-05102, 18-05-00306, 18-05-60037, 18-05-60083, 18-05-60219, 18-35-20031, 18-44-860017, 18-45-700015, 19-05-00352, 19-05-50088, 19-55-80021, Academy of Finland, AKA: 280700, 294600, 296302, Jane ja Aatos Erkon Säätiö, J&AE; Saint Petersburg State University, SPbU, Ministry of Science and Technology, Taiwan, MOST, Norges Forskningsråd: 311986, Russian Science Foundation, RSF: 17-17-01117, 18-17-00076, 19-77-300-12, 19-77-30004, 21-17-00181, Horizon 2020: 689443, 727890, Ulkoministeriö: PC0TQ4BT-20, Prince Albert II of Monaco Foundation, The work of Stanislav Myslenkov was supported by the Interdisciplinary Scientific and Educational School of Moscow State University 'The Future of the Planet and Global Environmental Changes'., Acknowledgements. We thank the following funding agencies and projects: Academy of Finland contract nos. 280700, 294600, 296302 (Novel Assessment of Black Carbon in the Eurasian Arctic: From Historical Concentrations and Sources to Future Climate Impacts, NABCEA), 307331 (FCoE Atmospheric Sciences), 311932, 314798/99, 315203, 317999, and 337549 (Atmosphere and Climate Competence Center, ACCC), the Jane and Aatos Erkko Foundation, Ministry for Foreign Affairs of Finland (IBA-project no. PC0TQ4BT-20), PECC (Transferable Knowledge and Technologies for High-Resolution Environmental Impact Assessment and Management, TRAKT-2018) project, Russian Government mega-grant project 1 075-15-2021-574 'Megapolis – heat and pollution island: interdisciplinary hydroclimatic, geochemical and ecological analysis', Russian Foundation for Basic Research (RFBR) project nos. 17-29-05027 (Selenga–Baikal river system), 17-29-05102, 18-05-00306, 18-05-60037, 18-05-60219 (Arctic river), 18-35-20031, 18-44-860017, 18-45-700015, 18-05-60083 (Storm activity in the Barents Sea), 20-5512001 (An interdisciplinary study on the impact of aerosolized particulate matter from aged wildfire plumes on environment and human health), 19-05-50088, 19-05-00352, and 19-55-80021 (MOST and DST studies), Scientific and Educational School of Moscow State University 'The Future of the Planet and Global Environmental Changes', the IAO SB RAS supported by RFBR project no. 19-05-50024, Russian Science Foundation (RSF) projects 21-17-00181 (Monitoring at Lena River catchment), 17-17-01117, 18-17-00076 (Long-term measurement of aerosol chemical composition in central Siberia, 19-77-20109 (black carbon emissions from Siberian fires), 19-77-30004 (Moscow environment), and 19-77-300-12 (Measurement networks and field sites in the Kola Peninsula), Yugra State University grant no. 13-01-20/39, Ministry of Science and Higher Education of Russia agreement no. 13.1902.21.0003, State assignment no. 0148-2019-0006, project N75295423 launched by St. Petersburg State University, Eu- ropean Research Council (ERC) project nos. 742206 (ATM-GTP) and 850614 (CHAPAs), EU Horizon 2020 project nos. 727890 (Integrated Arctic Observing System, INTAROS), 689443 (Integrative and Comprehensive Understanding on Polar Environments, iCUPE), and 654109 (Aerosol Clouds and Trace Gases Research Infrastructure, ACTRIS-2), EU7 FP MarcoPolo grant no. 606953, Erasmus+ 561975-EPP-1-2015-1-FI-EPPKA2-CBHE-JP, Norwegian Research Council and Belmont Forum project SERUS no. 311986, National Natural Science Foundation of China grant no. 41275137, and ESA-MOST China Dragon Cooperation project nos. 10663 and 32771 (Dragons 3 and 4). We also thank the AASCO – Arena gap analysis of the existing Arctic science co-operations (contract 2858) funded by the Prince Albert Foundation of Monaco (contract no. 2858)., European Project: 654109,H2020,H2020-INFRAIA-2014-2015,ACTRIS-2(2015), and European Project: 606953,EC:FP7:SPA,FP7-SPACE-2013-1,MARCOPOLO(2014)

Subjects
Atmospheric Science, ARCTIC SEA-ICE, kaupungit, EMILIANIA-HUXLEYI BLOOMS, GROSS PRIMARY PRODUCTIVITY, LONG-TERM MEASUREMENTS, 116 Chemical sciences, AEROSOL OPTICAL-PROPERTIES, VOLATILE ORGANIC-COMPOUNDS, kulkeutuminen, 114 Physical sciences, CLOUD CONDENSATION NUCLEI, Venäjä, 1172 Environmental sciences, NUMBER SIZE DISTRIBUTION, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, arktinen alue, ilmansuojelu, PARTICLE FORMATION EVENTS, Siperia, ilmastonmuutokset, metsät, TOWER OBSERVATORY ZOTTO, ilmansaasteet, kasvihuonekaasut, boreaalinen vyöhyke, ilmanlaatu, Kiina, Euraasia
Abstract

Short summary We summarize results during the last 5 years in the northern Eurasian region, especially from Russia, and introduce recent observations of the air quality in the urban environments in China. Although the scientific knowledge in these regions has increased, there are still gaps in our understanding of large-scale climate–Earth surface interactions and feedbacks. This arises from limitations in research infrastructures and integrative data analyses, hindering a comprehensive system analysis. The Pan-Eurasian Experiment (PEEX) Science Plan, released in 2015, addressed a need for a holistic system understanding and outlined the most urgent research needs for the rapidly changing Arctic-boreal region. Air quality in China, together with the long-range transport of atmospheric pollutants, was also indicated as one of the most crucial topics of the research agenda. These two geographical regions, the northern Eurasian Arctic-boreal region and China, especially the megacities in China, were identified as a “PEEX region”. It is also important to recognize that the PEEX geographical region is an area where science-based policy actions would have significant impacts on the global climate. This paper summarizes results obtained during the last 5 years in the northern Eurasian region, together with recent observations of the air quality in the urban environments in China, in the context of the PEEX programme. The main regions of interest are the Russian Arctic, northern Eurasian boreal forests (Siberia) and peatlands, and the megacities in China. We frame our analysis against research themes introduced in the PEEX Science Plan in 2015. We summarize recent progress towards an enhanced holistic understanding of the land–atmosphere–ocean systems feedbacks. We conclude that although the scientific knowledge in these regions has increased, the new results are in many cases insufficient, and there are still gaps in our understanding of large-scale climate–Earth surface interactions and feedbacks. This arises from limitations in research infrastructures, especially the lack of coordinated, continuous and comprehensive in situ observations of the study region as well as integrative data analyses, hindering a comprehensive system analysis. The fast-changing environment and ecosystem changes driven by climate change, socio-economic activities like the China Silk Road Initiative, and the global trends like urbanization further complicate such analyses. We recognize new topics with an increasing importance in the near future, especially “the enhancing biological sequestration capacity of greenhouse gases into forests and soils to mitigate climate change” and the “socio-economic development to tackle air quality issues”.

Published
2022
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4. Overview: Recent advances on the understanding of the Northern Eurasian environments and of the urban air quality in China - Pan Eurasian Experiment (PEEX) program perspective

Author

Jaana Bäck, Igor B. Konovalov, Valery Bondur, Jukka Pumpanen, Sayaka Yasunaka, Hanna Lappalainen, Kimmo Rautiainen, Sirkku Juhola, Sergey Zilitinkevich, Pavel Konstantinov, Martin Forsius, Alexander Mahura, Igor Esau, Stanislav Myslenko, Ekaterina Ezhova, Torsten Sachs, Kajar Köster, Jianhui Bai, Aki Virkkula, Vladimir Konovalov, Robertta Pirazzini, Victoria Miles, Erik S. Thomson, Natalia Chubarova, Jiahua Zhang, Stephany Buenrostro Mazon, Nadezhda Voropay, Jouni Räisänen, Elli Suhonen, Jean-Daniel Paris, Vladimir P Shevchenko, Huadong Guo, Andrey Skorokhod, Sergey Chalov, Stefano Mammola, Ivan Mammarella, Olga Popovicheva, Dimitry Orlov, Marina Tsidilina, Outi Meinander, Boris K. Biskaborn, Elena Lapsina, Yubao Qui, Svetlana M. Malkhazova, Tuukka Petäjä, Jouni Pulliainen, Boris D. Belan, Aijun Ding, Petteri Uotila, Eugene Mikhailov, Michael Boy, Eija Asmi, Meinrat O. Andreae, Alexander Baklanov, Konstantinos Eleftheriadis, Risto Makkonen, Veli-Matti Kerminen, F. Bianchi, Andreas Stohl, Bin Cheng, Martin Heimann, Veli-Pekka Tynkkynen, Jonathan Duplissy, Egor Dyukarev, Anna Lintunen, Michael Arshinov, Markku Kulmala, Matti Leppäranta, Dmitry Pozdnyakov, Timo Vihma, Nikolay Kasimov, Tobias Wolf, and Igor Bashmachnikov

Subjects
Sustainable development, business.industry, Environmental resource management, Climate change, 12. Responsible consumption, Geography, Megacity, Arctic, 13. Climate action, Greenhouse gas, Urbanization, 11. Sustainability, China, business, Air quality index
Abstract

The Pan-Eurasian Experiment (PEEX) Science Plan, released in 2015, addressed a need for a holistic system understanding and outlined the most urgent research needs for sustainable development in the Artic-boreal region. Air quality in China and long-range transport of the atmospheric pollutants was also indicated as one of the most crucial topics of the research agenda. This paper summarizes results obtained during the last five years in the Northern Eurasian region. It also introduces recent observations on the air quality in the urban environments in China. The main regions of interest are the Russian Arctic, Northern Eurasian boreal forests (Siberia) and peatlands and on the mega cities in China. We frame our analysis against research themes introduced in 2015. We summarize recent progress in the understanding of the land – atmosphere – ocean systems feedbacks. Although the scientific knowledge in these regions has increased, there are still gaps in our understanding of large-scale climate-Earth surface interactions and feedbacks. This arises from limitations in research infrastructures and integrative data analyses, hindering a comprehensive system analysis. The fast-changing environment and ecosystem changes driven by climate change, socio-economic activities like the China Silk Road Initiative, and the global trends like urbanization further complicate such analyses. We recognize new topics with an increasing importance in the near future, such as enhancing biological sequestration capacity of greenhouse gases into forests and soils to mitigate the climate change and the socio-economic development to tackle air quality issues.

Published
2021
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