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Water Resources Research Special Issue highlighting 50 years of research at Walnut Gulch
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This Special Section of Water Resources Research and the associated web site (http://www.tucson.ars.ag.gov/dap/) describe 50 years of data collection and the most recent research results at the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) Walnut Gulch Experimental Watershed (WGEW) in southeast Arizona.  Twenty manuscripts provide WGEW history, metadata, data access and recent results of WGEW data analysis.  The goal of this compilation is to encourage cooperative, interdisciplinary studies of semiarid ecohydrology at WGEW based on continuing long-term measurements of soils, vegetation, hydrology and climate.

 

Table of Contents

Moran, M.S., Emmerich, W.E., Goodrich, D.C., Heilman, P., Holifield Collins, C., Keefer, T.O., Nearing, M.A., Nichols, M.H., Renard, K.G., Scott, R.L., Smith, J.R., Stone, J.J., Unkrich, C.L., Wong, J.K. 2008. Preface to special section on Fifty Years of Research and Data Collection: U.S. Department of Agriculture Walnut Gulch Experimental Watershed.Water Resources Research, Vol. 44, W05S01, doi:10.1029/2007WR006083.

Renard, K.G., Nichols, M.H., Woolhiser, D.A., Osborn, H.B. 2008. A brief background on the U.S. Department of Agriculture Agricultural Research Service Walnut Gulch Experimental Watershed.Water Resources Research. Vol. 44, W05S02, doi:10.1029/2006WR005691.

Nichols, M.H., Anson, E.A. 2008. Southwest Watershed Research Center Data Access Project.Water Resources Research. Vol. 44, W05S03, doi:10.1029/2006WR005665.

Goodrich, D.C., Keefer, T.O., Unkrich, C.L., Nichols, M.H., Osborn H.B., Stone, J.J., Smith, J.R. 2008. Long-term precipitation database, Walnut Gulch Experimental Watershed, Arizona, United States.Water Resources Research, Vol. 44, W05S04, doi:10.1029/2006WR005782.

Stone, J.J., Nichols, M.H., Goodrich, D.C., Buono, J. 2008. Long-term runoff database, Walnut Gulch Experimental Watershed, Arizona, United States.Water Resources Research, Vol. 44, W05S05, doi:10.1029/2006WR005733.

Nichols, M.H., Stone, J.J., Nearing, M.A. 2008. Sediment database, Walnut Gulch Experimental Watershed, Arizona, United StatesUnited States.Water Resources Research. Vol. 44, W05S06, doi:10.1029/2006WR005682.

Keefer, T.O., Moran, M.S., Paige, G.B. 2008. Long-term meteorological and soil hydrology database, Walnut Gulch Experimental Watershed, Arizona, United States.Water Resources Research, Vol. 44, W05S07, doi:10.1029/2006WR005702.

Skirvin, S., Kidwell, M., Biedenbender, S.H., Henley, F. P., King, D.M., Holifield Collins, C.D., Moran, M.S., Weltz, M.A. 2008. Vegetation data, Walnut Gulch Experimental Watershed, Arizona, United States.Water Resources Research, Vol. 44, W05S08, doi:10.1029/2006WR005724.

Emmerich, W.E., Verdugo, C.L. 2008. Long-term carbon dioxide and water flux database, Walnut Gulch Experimeatal Watershed, Arizona.Water Resources Research. 44:1-3. 44, W05S09, doi: 10.1029/2006/WR05693.

Moran, M.S., Holifield Collins, C.D., Goodrich, D.C., Qi, J., Shannon, D.T., Olsson, A. 2008. Long-term remote sensing database, Walnut Gulch Experimental Watershed, Arizona, United States.Water Resources Research. Vol. 44, W05S10, doi:10.1029/2006WR005689.

Heilman, P., Nichols, M.H., Goodrich, D.C., Miller, S.N., Guertin, D.P. 2008. Geographic information systems database, Walnut Gulch Experimental Watershed, Arizona, United States.Water Resources Research, Vol. 44, W05S11, doi:10.1029/2006WR005777.

Keefer, T.O., Unkrich, C.L., Smith, J.R., Goodrich, D.C., Moran, M.S., Simanton, J.R. 2008. An event-based comparison of two types of automated-recording, weighing bucket rain gauges.Water Resources Research, Vol. 44, W05S12, doi:10.1029/2006WR005841.

Garcia, M., Peters-Lidard, C.D., Goodrich, D.C. 2008. Spatial interpolation of precipitation in a dense gauge network for monsoon storm events in the southwestern United States.Water Resources Research, Vol. 44, W05S13, doi:10.1029/2006WR005788.

Goodrich, D.C., Unkrich, C.L., Keefer, T.O., Nichols, M.H., Stone, J.J., Levick, L., Scott, R.L. 2008. Event to multidecadal persistence in rainfall and runoff in southeast Arizona. Water Resources Research, 44, W05S14, doi:10.1029/2007WR006222.

King, D., Skirvin, S., Holifield Collins, C., Moran, M.S., Biedenbender, S., Kidwell, M., Weltz, M.A., Diaz-Guiterrez, A. 2008. Assessing vegetation change temporally and spatially in southeastern Arizona.Water Resources Research, Vol. 44, W05S15, doi:10.1029/2006WR005850.

Emmerich, W.E., Verdugo, C.L. 2008. Precipitation thresholds for CO2 uptake in grass and shrub plant communities on Walnut Gulch Experimental Watershed.Water Resources Research. Vol. 44, W05S16, doi:10.1029/2006WR005690.

Nearing, M.A., Nichols, M.H., Stone, J.J., Renard, K.G., Simanton, J.R. 2007. Sediment yields from unit-source semi-arid watersheds at Walnut Gulch.Water Resources Research, Vol.43, W06426, doi:10.1029/2006WR005692.

Holifield Collins, C., Emmerich, W.E., Moran, M.S., Hernandez, M., Scott, R.L., Bryant, R., King, D.M., Verdugo, C.L. 2008. A remote sensing approach for estimating distributed daily net carbon dioxide flux in semiarid grasslands.Water Resources Research. Vol. 44, W05S17, doi:10.1029/2006WR005699.

Peters-Lidard, C.D., Mocko, D,M., Garcia, M., Santanello, Jr, J.A., Moran, M.S., Tischler, M.A., Wu, Y. 2008. Role of precipitation uncertainty in the estimation of hydrologic soil properties using remotely sensed soil moisture in a semiarid environment.Water Resources Research, Vol. 44, W05S18, doi:10.1029/2007WR005884.

Yatheendradas, S., Wagener, T., Gupta, H., Unkrich, C.L., Goodrich, D.C., Schaffner, M., Stewart, A. 2008. Understanding uncertainty in distributed flash flood forecasting for semiarid regions.Water Resources Research, Vol. 44, W05S19, doi:10.1029/2007WR005940.