Location: Southwest Watershed Research
Project Number: 2022-12660-005-05
Start Date: Aug 01, 2012
End Date: Jul 31, 2017
The project will a) change RHEM model equations from the current steady-state to fully dynamic (DRHEM) so that intra-storm changes in erodibility common to many disturbed conditions can be represented, b) incorporate existing technology based on PRISM and CLIGEN into the DRHEM model framework to allow modification of precipitation and temperature inputs to account for orographic effects that dominate spatial patterns on the western U.S., c) provide new data for DRHEM model development, parameter estimation, and validation studies, d) develop a catalog of DRHEM input for Ecological Site Descriptions and critical rangeland management practices, e) develop a catalog of the spatial and temporal scale of rangeland BMPs and how they should be represented in the watershed model at the larger allotment or landscape scale, f) couple DRHEM and KINEROS2 and test over a range of conditions, g) integrate the DRHEM/KINEROS2/SWAT model into the AGWA GIS framework, h) develop AGWA tools to delineate and represent rangeland conservation management practices with NRCS, and i) conduct large area testing of the integrated tool in close coordination with the ARS pilot watershed effort for Rangeland CEAP.