You are here:
Refine Your Search
Search Again
Search Within
Records 1 to
37
of 37
2019
Mushet, D., L. Alexander, M. Bennett, K. Schofield, J. Christensen, G. Ali, A. Pollard, K. Fritz, AND M. Lang. Differing Modes of Biotic Connectivity within Freshwater Ecosystem Mosaics. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION. American Water Resources Association, Middleburg, VA, 55(2):307-317, (2019). https://doi.org/10.1111/1752-1688.12683
Golden, H., A. Rajib, S. Mengistu, C. Lane, J. Christensen, Q. Wu, E. D'Amico, AND A. Prues. Do wetlands mediate nutrients at watershed scales? Insights from “big data” and models. 2019 Annual Meeting for the Ecological Society of America, Louisville, Kentucky, August 11 - 16, 2019.
Wu, Q., C. Lane, L. Wang, M. Vanderhoof, J. Christensen, AND H. Liu. Efficient Delineation of Nested Depression Hierarchy in Digital Elevation Models for Hydrological Analysis Using Level‐Set Method. JAWRA. American Water Resources Association, Middleburg, VA, 55(2):354-368, (2019). https://doi.org/10.1111/1752-1688.12689
Christensen, J. Exploring the Extent of Artificial Agricultural Drainage using GIS Tools. 2019 Annual Meeting for the Ecological Society of America, Louiseville, KY, August 11 - 16, 2019.
Christensen, J. Exploring the Extent of Artificial Agricultural Drainage using GIS Tools (Soil and Water Conservation Society). 2019 Annual Conference of the Soil and Water Conservation Society, Pittsburgh, PA, July 28, 2019.
Golden, H., A. Rajib, C. Lane, J. Christensen, Q. Wu, AND S. Mengistu. Non-floodplain Wetlands Affect Watershed Nutrient Dynamics: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 53(13):7203-7214, (2019). https://doi.org/10.1021/acs.est.8b07270
Golden, H., Mohammad Adnan Rajib Bhuiyan, Samson Girma Mengistu, C. Lane, J. Christensen, AND Q. Wu. Wetlands and nutrients at watershed scales: insights from big data and models. Gordon Research Conference on Catchment Science, Andover, NH, June 23 - 28, 2019.
2018
Christensen, J., G. Everson, M. Vanderhoof, Q. Wu, H. Golden, C. Lane, AND L. Alexander. Characterizing Depressional Wetland Storage in a Watershed: Linking Remote Sensing and Hydrologic Modeling Approaches. 6th Interagency Conference on Research in the Watersheds, Shepherdstown, WV, July 23 - 26, 2018.
Nash, M. AND J. Christensen. Description of Changes in Climatic Indices in USA over 25 Years (1989 – 2013). U.S. Environmental Protection Agency, Washington, DC, EPA/600/S-17/434, 2018.
Golden, H., C. Lane, S. Leibowitz, J. Christensen, J. Compton, E. D'Amico, A. Prues, M. Weber, AND R. Hill. How Landscape Source, Sink, and Transport Interactions Mediate Nitrogen and Phosphorus Across a Large River Basin. 2018 AGU Fall Meeting, Washington, DC, December 09 - 14, 2018.
Golden, H., A. Rajib, S. Mengistu, C. Lane, J. Christensen, E. DAmico, AND A. Prues. Natural infrastructure in large river basins: quantifying nutrient and hydrologic effects using “big” data and modeling. AGU Fall 2018 Meeting, Washington, DC, December 09 - 14, 2018.
2017
Mushet, D., J. Christensen, M. Bennett, AND L. Alexander. Biota: Providing Often-overlooked Connections among Freshwater Systems. WATER RESOURCES IMPACT. American Water Resources Association, Middleburg, VA, 19(2):11-13, (2017).
Horvath, E., J. Christensen, M. Mehaffey, AND A. Neale. Building a Potential Wetland Restoration Indicator for the Contiguous United States. ECOLOGICAL INDICATORS. Elsevier Science Ltd, New York, NY, 83:462-473, (2017).
Nash, M., J. Wickham, J. Christensen, AND T. Wade. Changes in Landscape Greenness and Climatic Factors over 25 Years (1989–2013) in the USA. Remote Sensing. MDPI, Basel, Switzerland, 9(3):295, (2017).
Christensen, J., G. Evenson, M. Vanderhoof, Q. Wu, H. Golden, AND C. Lane. Characterizing the Surface Connectivity of Depressional Wetlands: Linking Remote Sensing and Hydrologic Modeling Approaches. 2017 AGU Fall Meeting, New Orleans, LA, December 11 - 15, 2017.
Creed, I., C. Lane, J. Serran, L. Alexander, N. Basu, A. Calhoun, J. Christensen, M. Cohen, C. Craft, E. D'Amico, E. DeKeyser, L. Fowler, H. Golden, J. Jawitz, P. Kalla, K. Kirkman, M. Lang, S. Leibowitz, D. Lewis, J. Marton, D. McLaughlin, H. Raanan-Kiperwas, M. Rains, K. Rains, AND L. Smith. Enhancing protection for vulnerable waters. Nature Geoscience. Nature Publishing Group, London, Uk, 10(11):809-815, (2017). https://doi.org/10.1038/ngeo3041
Christensen, J. Exploring Agricultural Drainage's Influence on Wetland and Watershed Connectivity. US-IALE 2017, Baltimore, MD, April 09 - 13, 2017.
Golden, H., I. Creed, G. Ali, N. Basu, B. Neff, M. Rains, D. McLaughlin, L. Alexander, A. Ameli, J. Christensen, G. Evenson, C. Jones, C. Lane, AND M. Lang. Integrating geographically isolated wetlands into land management decisions. FRONTIERS IN ECOLOGY AND THE ENVIRONMENT. Ecological Society of America, Ithaca, NY, 15(6):319-327, (2017). https://doi.org/10.1002/fee.1504
Christensen, J., G. Evenson, M. Vanderhoof, S. Leibowitz, H. Golden, AND L. Alexander. Tying Together Methods to Estimate Wetland Connectivity: Tests within the Pipestem, ND. AWRA Spring Conference, Snowbird, UT, May 01 - 03, 2017.
2016
Horvath, E., J. Christensen, M. Mehaffey, AND A. Neale. Building a potential wetland restoration indictor for the U.S. EPA’s EnviroAtlas. US IALE, Ashville, NC, April 03 - 07, 2016.
Christensen, J., G. Evenson, M. Vanderhoof, S. Leibowitz, H. Golden, AND L. Alexander. Estimating Fill-Spill Wetland Surface Connections in the Pipestem Creek, ND, Across Wet-Dry Conditions. SWS Annual Meeting, Corpus Christi, TX, May 31 - June 04, 2016.
2015
Christensen, J., M. Nash, J. Compton, J. Wigington, AND S. Griffith. Connecting Seasonal Riparian Buffer Metrics and Nitrogen Concentrations in a Pulse-Driven Agricultural System. Presented at SFS (Society for Freshwater Science) Meeting, Milwaukee, WI, May 17 - 21, 2015.
Christensen, J., S. Leibowitz, AND L. Alexander. Geospatial Connectivity Metrics: Update on Simple Metrics for the Upper Pipestem. Presented at Geospatial Connectivity Metrics Workshop, Jamestown, ND, October 05 - 09, 2015.
Christensen, J., M. Nash, D. Chaloud, AND A. Pitchford. Spatial Distribution of Small Water Body Types across Indiana Ecoregions. ECOHYDROLOGY. Wiley Interscience, Malden, MA, 8(4):1-32, (2015).
2014
Christensen, J., M. Nash, D. Chaloud, AND A. Pitchford. Spatial Distribution of Small Water Body Types in Indiana Ecoregions. Presented at Joint Aquatic Sciences Meeting, Portland, OR, May 18 - 23, 2014.
2013
CHRISTENSEN, J., M. S. NASH, AND A. C. NEALE. Identifying Riparian Buffer Effects on Stream 1 Nitrogen in Southeastern Coastal Plain Watersheds. ENVIRONMENTAL MANAGEMENT. Springer-Verlag, New York, NY, 52(5):1161-1176, (2013).
2011
ALLEN, P., M. S. NASH, R. C. Ohman, R. D. LOPEZ, J. CHRISTENSEN, A. M. PITCHFORD, N. G. TALLENT-HALSELL, AND L. C. BUTLER. Characterizing and Mapping of Ecosystem Services (CMESs) Literature Database Version 1.0. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-11/003, 2011.
2010
YUAN, Y., J. CHRISTENSEN, M. JACKSON, R. Bingner, AND M. Locke. Simulation of Wetland Nitrogen Removal at the Watershed Scale Using AnnAGNPS. Presented at 65TH SWCS International Annual Conference, St. Louis, MO, July 17 - 21, 2010.
CHRISTENSEN, J. AND A. C. NEALE. Using GIS Models to Identify Relative Nitrogen Attenuation by Riparian Buffers in the Coastal Plain of North Carolina. Presented at Soil and Water Conservation society International Annual Meeting, St. Louis, MO, July 18 - 21, 2010.
CHRISTENSEN, J. AND W. Crumpton. WETLAND INVERTEBRATE COMMUNITY RESPONSES TO VARYING EMERGENT LITTER IN A PRAIRIE POTHOLE EMERGENT MARSH. WETLANDS. The Society of Wetland Scientists, McLean, VA, 30(6):1031-1044, (2010).
2009
CHRISTENSEN, J. Approaches to Mapping Nitrogen Removal: Examples at a Landscape Scale. Presented at ESRP Programic Meeting, Athens, GA, October 23, 2009.
CHRISTENSEN, J. R., W. Crumpton, AND A. van der Valk. ESTIMATING THE BREAKDOWN AND ACCUMULATION OF EMERGENT MACROPHYTE LITTER: A MASS-BALANCE APPROACH. WETLANDS. The Society of Wetland Scientists, McLean, VA, 29(1):204-214, (2009).
CHRISTENSEN, J. AND D. W. EBERT. Effects of Stream and Elevation Resolution on Riparian Metrics and Restoration Identification. Presented at American Water Resources Association, Seattle, WA, November 09, 2009.
Lin, J. T., J. CHRISTENSEN, AND R. D. LOPEZ. Mapping Coastal Wetland Change in Louisiana's Gulf Coast . Presented at 5th International Workshop on the Analysis of Multi-Temporal Remote Sensing Images, Groton, CT, July 27 - 30, 2009.
CHRISTENSEN, J. R., A. G. van der Valk, W. G. Crumpton, AND R. Grosshans. Modeling Emergent Macrophyte Distributions: Including Sub-dominant Species. Presented at Annual Meeting for Society of Wetland Scientists, Madison, WI, June 22, 2009 - June 29, 3009.
2008
CHRISTENSEN, J. R., W. G. Crumpton, AND A. G. van der Valk. MODELING LONG-TERM DYNAMICS OF LITTER ACCUMULATION IN RESPONSE TO STATIC AND VARIABLE HYDROPERIODS. Presented at 8th INTECOL International Wetlands Conference, Cuiaba, BRAZIL, July 20 - 25, 2008.
ALLEN, P., R. D. LOPEZ, M. S. NASH, J. R. CHRISTENSEN, N. G. TALLENT-HALSELL, L. C. BUTLER, A. M. PITCHFORD, AND A. C. NEALE. The Landscape Framework for the Spatial Characterization and Mapping of Ecosystem Services: What is the State of the Science? Presented at A Conference on Ecosystem Services, Naples, FL, December 08 - 11, 2008.