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Records 1 to 24 of 24 records from [ORD-NHEERL] published between 02/21/2014 and 02/21/2019 from author Ryan Hill

2018

Aho, K.B., J. Flotemersch, Z. Johnson, M. Weber, R. Hill, AND S.G. Leibowitz. Applying the Index of Watershed Integrity to the Western Balkan Region. 10th Eastern European Young Water Professionals Conference, Zagreb, N/A, CROATIA, May 07 - 12, 2018.

Thornbrugh, D., S. Leibowitz, R. Hill, M. Weber, Z. Johnson, Tony Olsen, J. Flotemersch, J. Stoddard, AND D. Peck. Mapping watershed integrity for the conterminous United States.. ECOLOGICAL INDICATORS. Elsevier Science Ltd, New York, NY, 85:1133-1148, (2018).

Weber, Marc H, Ryan A Hill, Scott G Leibowitz, AND Anthony R Olsen. NHD Use in the StreamCat Dataset. Chapter 11, GIS for Surface Water - Using the National Hydrography Dataset. ESRI Press, Viena, VA, , 409-412, (2018).

Bellmore, R., J. Compton, Reneej Brooks, EricW Fox, R. Hill, D. Sobota, D. Thornbrugh, AND M. Weber. Nitrogen inputs drive nitrogen concentrations in U.S. streams and rivers during summer low flow conditions. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, Netherlands, 639:1349-1359, (2018). https://doi.org/10.1016/j.scitotenv.2018.05.008

Hill, R., M. Weber, AND S. Leibowitz. StreamCat and LakeCat: An overview of algorithms, data, and models developed at the US EPA Western Ecology Division to facilitate and advance watershed prediction in the conterminous US. To be Presented at 2018 AWRA Spring Specialty Conference: GIS & Water Resources X, Orlando, Florida, April 22 - 25, 2018.

Hill, R., M. Weber, R. Debbout, S. Leibowitz, AND Tony Olsen. The Lake-Catchment (LakeCat) Dataset: Characterizing landscape features for lake basins within the conterminous USA. Freshwater Science. The Society for Freshwater Science, Springfield, IL, 37(2):208-221, (2018).

Hill, R., S. Keely, N. Brinkman, E. Wheaton, S. Leibowitz, M. Jahne, R. Martin, AND J. Garland. The Prevalence of Antibiotic Resistance Genes in US Waterways and Their Relationship to Water Quality and Land Use Indicators. Annual Meeting of the Society for Freshwater Science, Detroit, MI, May 20 - 24, 2018.

Keely, S., R. Hill, AND S. Leibowitz. Use of NRSA Data for Mapping Antibiotic-Resistance Gene Distributions in Conterminous US Rivers and Streams. National Aquatic Resource Surveys partners in Office of Water and the states, webinar, Webinar, September 28, 2018.

2017

Fox, EricW, R. Hill, S. Leibowitz, Tony Olsen, D. Thornbrugh, AND M. Weber. Assessing the accuracy and stability of variable selection methods for random forest modeling in ecology. ENVIRONMENTAL MONITORING AND ASSESSMENT. Springer, New York, NY, 189:316, (2017).

Johnson, Z., S. Leibowitz, AND R. Hill. Developing stressor-watershed function relationships to refine the national maps of watershed integrity. Ecological Society of America Annual Meeting, Portland, OR, August 06 - 11, 2017.

Hill, R., EricW Fox, S. Leibowitz, Tony Olsen, D. Thornbrugh, AND M. Weber. Predictive Mapping of the Biotic Condition of Conterminous U.S. Rivers and Streams. ECOLOGICAL APPLICATIONS. Ecological Society of America, Ithaca, NY, 27(8):2397-2415, (2017).

Hill, R., M. Weber, R. Debbout, S. Leibowitz, AND Tony Olsen. The Lake-Catchment (LakeCat) Dataset for characterizing hydrologically-relevant landscape features for lakes across the conterminous US. Society for Freshwater Science Annual Meeting, Raleigh, North Carolina, June 04 - 08, 2017.

Hill, R., M. Weber, R. Debbout, S. Leibowitz, AND Tony Olsen. The Stream-Catchment (StreamCat) and Lake-Catchment (LakeCat) Datasets: leveraging existing geospatial frameworks and data to characterize lotic and lentic ecosystems across the conterminous US for ecological and environmental modeling. Ecological Society of America Annual Meeting, Portland, Oregon, August 06 - 11, 2017.

Leibowitz, Scott G, Ryan A Hill, Marc H Weber, C. Jones, M. Rains, I. Creed, AND J. Christensen. Wetland Hydrologic Connectivity to Downstream Waters: A Classification Approach and National Assessment. 2017 American Geophysical Union Fall Meeting, New Orleans, LA, December 11 - 15, 2017.

2016

Thornbrugh, D., S. Leibowitz, R. Hill, M. Weber, J. Stoddard, AND J. Flotemersch. MAPPING WATERSHED INTEGRITY FOR THE CONTERMINOUS UNITED STATES. Society for Freshwater Science Meeting, Sacramento, CA, May 21 - 26, 2016.

Fox, EricW, R. Hill, AND S. Leibowitz. Random forest models for the probable biological condition of streams and rivers in the USA. 2016 International Indian Statistical Association Conference, Corvallis, OR, August 18 - 21, 2016.

Leibowitz, S., R. Hill, M. Weber, D. Thornbrugh, EricW Fox, Tony Olsen, J. Flotemersch, J. Stoddard, AND D. Peck. SSWR 3.01B.1: National maps of watershed integrity and stream condition. SSWR webinar on “National maps of watershed integrity and stream condition”, NA, August 01, 2016.

Fox, EricW, R. Hill, S. Leibowitz, Tony Olsen, AND M. Weber. Spatial prediction models for the probable biological condition of streams and rivers in the USA. International Statistical Ecology Meeting, Seattle, WA, June 28 - July 01, 2016.

Weber, M., R. Hill, S. Leibowitz, AND D. Thornbrugh. The Stream-Catchment (StreamCat) Dataset. AWRA Summer Specialty Conference: GIS and Water Resources IX, Sacramento, CA, July 11 - 13, 2016.

HILL, R., M. H. WEBER, E. FOX, S. G. LEIBOWITZ, AND D. THORNBRUGH. Using StreamCat and the NHDPlus framework to model and map the biological condition of USA streams and rivers. Presented at AWRA Summer Specialty Conference, GIS and Water Resources IX, Sacramento, CA, July 11 - 13, 2016.

Hill, R., EricW Fox, S. Leibowitz, Tony Olsen, M. Weber, AND D. Thornbrugh. Variable selection with random forest: Balancing stability, performance, and interpretation in ecological and environmental modeling. Annual Meeting of the Society for Freshwater Science, Sacramento, CA, May 21 - 26, 2016.

Leibowitz, S., M. Rains, I. Creed, D. Aldred, R. Hill, M. Weber, AND C. Jones. Wetland Hydrological Connectivity: A Classification Approach and Continental Assessment. 10th Intercol International Wetlands Conference, Changshu, CHINA, September 19 - 24, 2016.

2015

Bellmore, R., J. Compton, M. Weber, R. Hill, D. Thornbrugh, AND Reneej Brooks. Effects of Nitrogen Inputs and Watershed Characteristics on Summer Stream Nitrogen Concentrations: A National-Scale Analysis. American Geophysical Union, San Francisco, CA, December 13 - 18, 2015.

Hill, R., M. Weber, S. Leibowitz, Tony Olsen, AND D. Thornbrugh. StreamCat - Dataset of Watershed Characteristics. U.S. EPA Office of Research and Development, Washington, DC, EPA/600/F-15/302, 2015.