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Nanus , Leora 1 ; Williams , Mark W. 2 ; Campbell , Donald H. 3 1 Â鶹ӰԺ 2 Â鶹ӰԺ 3 United States Geological Survey Acidification of high-elevation lakes in the Western United States is of concern because of the storage and release of...

Montandon , Laure 1 ; Small , Eric E. 2 1 CU Â鶹ӰԺ 2 CU Â鶹ӰԺ The green vegetation fraction (Fg) is an important climate and hydrologic model parameter. Common methods to calculate Fg, like the Gutman and Ignatov (GI) approach and its derived quadratic version, are simple mixing models...

Molotch , Noah 1 1 University of Colorado, Cooperative Institute for Research in Environmental Sciences CIRES A spatially distributed snowmelt model was used to simulate pixel-specific daily snowmelt and snow water equivalent (SWE) over the Rio Grande headwaters (3,419 km2). Melt flux estimates were coupled with three different time-series of...

Miller , Matthew 1 ; McKnight , Diane 2 ; Cory , Rose 3 ; Williams , Mark 4 ; Runkel , Robert 5 1 Department of Civil, Environmental, and Architectural Engineering, Institute of Arctic and Alpine Research, University of Colorado 2 Department of Civil, Environmental, and Architectural Engineering, Institute...

McCleskey , R. Blaine 1 ; Nordstrom , D. Kirk 2 ; Maest , Ann S. 3 1 U.S. Geological Survey, Â鶹ӰԺ, CO 2 U.S. Geological Survey, Â鶹ӰԺ, CO 3 Buka Environmental, Â鶹ӰԺ, CO Published literature on the time stability of water samples containing dissolved As(III/V) and preserved with a...

Mantilla , Ricardo 1 ; Gupta , Vijay K 2 1 Department of Civil, Environmental, and Architectural Engineering. Cooperative Institute for Research in Environmental Sciences (CIRES). University of Colorado at Â鶹ӰԺ. 2 Department of Civil, Environmental, and Architectural Engineering. Cooperative Institute for Research in Environmental Sciences (CIRES). University of Colorado...

Mallikamas , Wasin 1 ; Rajaram , Harihar 2 1 University of Colorado 2 University of Colorado We present theoretical and computational analyses of the anisotropy of the aperture correlation structure and effective transmissivity in fractures generated by sliding between identical self-affine surfaces. The anisotropy resulting from shear has been...

Logan , Brandy L 1 ; Pitlick , John 2 1 University of Colorado 2 Univeristy of Colorado Sustained drought in the Upper Colorado River Basin has severely limited peak flows, allowing native and non-native plant species to colonize low-lying bar surfaces within the last five years. This vegetation has...

Lee , Eungul 1 ; Chase , Thomas N. 2 ; Rajagopalan , Balaji 3 1 CIRES and Geography, Univ. of Colorado at Â鶹ӰԺ 2 CIRES and Geography, Univ. of Colorado at Â鶹ӰԺ 3 CIRES and CEA Engineering, Univ. of Colorado at Â鶹ӰԺ Northern East Asian summer monsoon precipitation (NEASMP)...

Larsen , Laurel G. 1 ; Harvey , Judson W. 2 ; Crimaldi , John P. 3 1 University of Colorado 2 U.S. Geological Survey, Reston, VA 3 University of Colorado The ridge and slough landscape of the Florida Everglades is a patterned peatland, with elevated sawgrass ridges interspersed among...