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23 results on '"Natalie Latysh"'

3. Investigation of Differences between Field and Laboratory pH Measurements of National Atmospheric Deposition Program/National Trends Network Precipitation Samples

Author

John D. Gordon and Natalie Latysh

Subjects
Hydrology, Environmental Engineering, Ecological Modeling, Ph measurement, Pollution, Environmental chemistry, Trend surface analysis, Environmental Chemistry, Environmental science, National trends, Time variations, Acid rain, Precipitation, Water Science and Technology
Abstract

A study was undertaken to investigate differences between laboratoryand field pH measurements for precipitation samples collected from 135 weekly precipitation-monitoring sites in the National Trends Network from 12/30/1986 to 12/28/1999. Differences in pH between field and laboratory measurements occurred for 96% of samples collected during this time period. Differences between the two measurements were evaluated for precipitation samples collected before and after January 1994, when modifications to sample-handling protocol and elimination of the contaminating bucket o-ring used in sample shipment occurred. Median hydrogen-ion and pH differences between field and laboratory measurements declined from 3. 9 μeq L-1 or 0. 10 pH units before the 1994 protocol change to 1. 4 μeq L-1 or 0. 04 pH units after the 1994 protocol change. Hydrogen-ion differences between field and laboratory measurements had a high correlation with the sample pH determined in the field. The largest pH differences between the two measurements occurred for high-pH samples (>5. 6), typical of precipitation collected in Western United States; however low-pH samples (

Published
2004
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4. U.S. Geological Survey science for the Wyoming Landscape Conservation Initiative—2014 annual report

Author

Christopher Huber, Cameron L. Aldridge, Marie K. Dematatis, Stephen S. Germaine, Annika W. Walters, Daniel J. Manier, Timothy J. Assal, Timothy T. Bartos, Cheryl A. Eddy-Miller, Collin G. Homer, Spencer Schell, Zachary H. Bowen, Anna D. Chalfoun, Edward M. Olexa, Steven L. Garman, Patrick J. Anderson, Teal B. Wyckoff, Cynthia P. Melcher, Kirk A. Miller, Laura R.H. Biewick, Anna B. Wilson, Natalie Latysh, Gregory K. Boughton, Alexander Miller, Geneva W. Chong, and Matthew J. Kauffman

Subjects
Geography, Geological survey, Landscape conservation, Annual report, Archaeology
Published
2015
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5. Geochemistry, Nd and Sr isotopes, and U/Pb Zircon ages of Granitoid and Metasedimentary Xenoliths from the Navajo Volcanic Field, Four Corners area, Southwestern United States

Author

M. Kozuch, Jane Selverstone, Natalie Latysh, W. R. Van Schmus, and Kent C. Condie

Subjects
geography, geography.geographical_feature_category, Fractional crystallization (geology), Proterozoic, Partial melting, Geochemistry, Geology, Plutonism, Diatreme, Geochemistry and Petrology, Xenolith, Petrology, Restite, Zircon
Abstract

Proterozoic granitoid xenoliths from the Navajo Volcanic Field (NVF) in the southwestern United States range in composition from tonalite–diorite to granite with the latter greatly dominating. There is no apparent relationship between chemical or isotopic composition and age, geographic location, or degree of alteration or deformation of the xenoliths. Two of the major ages of Proterozoic plutonism recognized in the Southwest (1.75–1.70, Yavapai, and 1.45–1.41 Ga, `anorogenic') are represented by the NVF xenoliths, in some instances within a single diatreme. We did not find any xenoliths in the 1.65–1.62 Ma (Mazatzal) range. The xenoliths are dominantly I-types and both Nd and Sr isotopes and trace element distributions indicate juvenile, arc sources approximately 1.8 Ga. The granite magmas may have been produced by either vapor absent partial melting or fractional crystallization of a tonalite parent. Juvenile sources must have been available for melting in each of the three periods of magma production, and hence some juvenile 1.8-Ga crust in this region must have escaped melting in the first two episodes of magmatism and deformation. Metasedimentary xenoliths are chiefly biotite–sillimanite schists, garnet–biotite schists, and garnet paragneisses. These three groups are strikingly similar in chemical and isotopic composition, suggesting similar graywacke-pelite protoliths. The schists appear to be limited to the far northern part of the volcanic field consistent with a possible crustal boundary in the basement. Compositional and thermobarometric results suggest that the biotite schist xenoliths are not restites, but that the paragneisses may be mixtures of melt and restite. Sedimentary protoliths may have been deposited in a forearc basin, and later tectonically transported to the deep crust during one or more arc-continent collisions in the late Paleoproterozoic.

Published
1999
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6. U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative - 2013 Annual Report

Author

Anna D. Chalfoun, Cameron L. Aldridge, Gregory K. Boughton, Collin G. Homer, Carleton R. Bern, Kirk A. Miller, Matthew G. Hethcoat, Stephen S. Germaine, Matthew J. Kauffman, Timothy J. Assal, Geneva W. Chong, Christopher J. Potter, Marie K. Dematatis, Christopher Huber, Michael J. Sweat, Daniel J. Manier, Annika W. Walters, Bradley C. Fedy, Anna B. Wilson, Patrick J. Anderson, Cynthia P. Melcher, Laura R.H. Biewick, Natalie Latysh, Zachary H. Bowen, Steven L. Garman, and Spencer Schell

Subjects
Geography, Geological survey, Landscape conservation, Annual report, Archaeology
Published
2014
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7. Two decision-support tools for assessing the potential effects of energy development on hydrologic resources as part of the Energy and Environment in the Rocky Mountain Area interactive energy atlas

Author

Nils C. Babel, Drew A. Ignizio, James E. Diffendorfer, Anne Marie Matherne, Sarah J. Hawkins, Natalie Latysh, Joshua I. Linard, Kenneth J. Leib, and Natasha B. Carr

Subjects
Hydrology, Energy development, Atlas (topology), business.industry, Decision support tools, Environmental resource management, Environmental science, business
Published
2014
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8. U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative: 2012 annual report

Author

Kirk A. Miller, Spencer Schell, Jessica Montag, Anna B. Wilson, Natalie Latysh, Christopher J. Potter, Michael J. Sweat, Daniel J. Manier, Stephen S. Germaine, David Smith, Collin G. Homer, Carleton R. Bern, Patrick J. Anderson, Bradford C. Fedy, Gregory K. Boughton, Cynthia P. Melcher, Douglas A. Keinath, Robert R. McDougal, Anna D. Chalfoun, Cameron L. Aldridge, Geneva W. Chong, Natasha B. Carr, Matthew G. Hethcoat, Sarah L. Shafer, Zachary H. Bowen, Steven L. Garman, Laura R.H. Biewick, Matthew J. Kauffman, Timothy J. Assal, Katharine Foster, and M.L. Clark

Subjects
Geography, Geological survey, Landscape conservation, Annual report, Archaeology
Published
2014
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15. U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative-2010 Annual Report

Author

Matthew J. Kauffman, Sarah L. Shafer, Daniel J. Manier, Kirk A. Miller, Stephen S. Germaine, Katharine Foster, M.L. Clark, David Smith, Spencer Schell, Robert R. McDougal, Zachary H. Bowen, Laura R.H. Biewick, Douglas A. Keinath, Jay E. Diffendorfer, Lisa L. Stillings, Anna D. Chalfoun, Natasha B. Carr, Michele L.W. Tuttle, Steven L. Garman, Collin G. Homer, R. Sky Bristol, Jessica Montag, Patrick J. Anderson, Cameron L. Aldridge, Cynthia P. Melcher, Timothy J. Assal, Steven W. Blecker, Gregory K. Boughton, Geneva W. Chong, Christopher J. Potter, JoAnn M. Holloway, Bradley C. Fedy, Anna B. Wilson, and Natalie Latysh

Subjects
Geography, Geological survey, Landscape conservation, Annual report, Archaeology
Published
2011
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16. Improved mapping of National Atmospheric Deposition Program wet-deposition in complex terrain using PRISM-gridded data sets

Author

Gregory A. Wetherbee and Natalie Latysh

Subjects
Air Pollutants, Atmosphere, Altitude, Rain, Elevation, Terrain, General Medicine, Management, Monitoring, Policy and Law, Snow, Pollution, Deposition (aerosol physics), Climatology, Air Pollution, Environmental science, Prism, Precipitation, General Environmental Science, Environmental Monitoring
Abstract

High-elevation regions in the United States lack detailed atmospheric wet-deposition data. The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) measures and reports precipitation amounts and chemical constituent concentration and deposition data for the United States on annual isopleth maps using inverse distance weighted (IDW) interpolation methods. This interpolation for unsampled areas does not account for topographic influences. Therefore, NADP/NTN isopleth maps lack detail and potentially underestimate wet deposition in high-elevation regions. The NADP/NTN wet-deposition maps may be improved using precipitation grids generated by other networks. The Parameter-elevation Regressions on Independent Slopes Model (PRISM) produces digital grids of precipitation estimates from many precipitation-monitoring networks and incorporates influences of topographical and geographical features. Because NADP/NTN ion concentrations do not vary with elevation as much as precipitation depths, PRISM is used with unadjusted NADP/NTN data in this paper to calculate ion wet deposition in complex terrain to yield more accurate and detailed isopleth deposition maps in complex terrain. PRISM precipitation estimates generally exceed NADP/NTN precipitation estimates for coastal and mountainous regions in the western United States. NADP/NTN precipitation estimates generally exceed PRISM precipitation estimates for leeward mountainous regions in Washington, Oregon, and Nevada, where abrupt changes in precipitation depths induced by topography are not depicted by IDW interpolation. PRISM-based deposition estimates for nitrate can exceed NADP/NTN estimates by more than 100% for mountainous regions in the western United States.

Published
2010

17. U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative-2009 Annual Report

Author

Michele L.W. Tuttle, Anna D. Chalfoun, Daniel J. Manier, Steven W. Blecker, Spencer Schell, Richard I. Grauch, Cameron L. Aldridge, Patrick J. Anderson, Jessica Montag, Zachary H. Bowen, Timothy J. Assal, R. Sky Bristol, Cynthia P. Melcher, Douglas A. Keinath, Collin G. Homer, Stephen S. Germaine, Robert R. McDougal, Steven L. Garman, Sarah L. Shafer, Lisa L. Stillings, Anna B. Wilson, Natalie Latysh, Natasha B. Carr, James E. Diffendorfer, Laura R.H. Biewick, Kirk A. Miller, Hall Sawyer, Constance J. Nutt, David Smith, Bradley C. Fedy, Matthew J. Kauffman, Christopher J. Potter, JoAnn M. Holloway, and Geneva W. Chong

Subjects
Geological survey, Environmental science, Landscape conservation, Annual report, Archaeology
Published
2010
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18. U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative - 2008 Annual Report

Author

Collin G. Homer, Anna B. Wilson, Matthew J. Kauffman, Richard I. Grauch, Cameron L. Aldridge, Jay E. Diffendorfer, Daniel J. Manier, David Smith, Stephen S. Germaine, Michael J. Sweat, Zachary H. Bowen, Hall Sawyer, Bradley C. Fedy, Patrick J. Anderson, Steven L. Garman, Christopher J. Potter, Timothy J. Assal, Jessica Montag, Lori Anne Baer, Cynthia P. Melcher, Constance J. Nutt, R. Sky Bristol, Natasha B. Carr, Kirk A. Miller, Geneva W. Chong, and Natalie Latysh

Subjects
business.industry, Environmental resource management, Geological survey, Environmental science, Forestry, Landscape conservation, Annual report, business
Published
2009
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23. U.S. Geological Survey science for the Wyoming Landscape Conservation Initiative: 2011 annual report

Author

Patrick J. Anderson, Daniel J. Manier, Cynthia P. Melcher, David Smith, Collin G. Homer, Anna B. Wilson, Sarah L. Shafer, Natalie Latysh, Stephanie Germaine, Timothy J. Assal, Steven W. Blecker, Douglas A. Keinath, Katharine Foster, M.L. Clark, Anna D. Chalfoun, Spencer Schell, Edward M. Olexa, Kirk A. Miller, Robert R. McDougal, Zachary H. Bowen, Laura R.H. Biewick, Jay E. Diffendorfer, Michele L.W. Tuttle, Matthew G. Hethcoat, Steven L. Garman, Matthew J. Kauffman, Michael J. Sweat, Lisa L. Stillings, Natasha B. Carr, Cameron L. Aldridge, Jessica Montag, Gregory K. Boughton, Geneva W. Chong, Bradley C. Fedy, Christopher J. Potter, and JoAnn M. Holloway

Subjects
Geography, Geological survey, Landscape conservation, Annual report, Archaeology
Published
2013
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