Crow Creek Watershed Project

Upper Crow Creek Watershed - is a multi-use watershed comprised of:
  • 75% Rangelands
  • 90% Private Ownership
  • 5% State lands
  • 4% Federal lands
Head waters of watershed:
  • 85% federal
  • Area ≈ 67.9 km2
Currently collecting monitoring data throughout upper portion of watershed
  • Line point intercept
  • Canopy Gap
  • Basal Gap
  • Belt transects (shrub community arrangement)
Hydrologic Data Collection
  • Run off and erosion plots with natural precipitation
  • Potentially with simulated overland flow or simulated precipitation
R. AGWA
  • Create an easy to use decision support tool for land managers to assess the impact of climate and management on rangeland hydrologic processes
  • Selected Crow Creek as a case study:
    – Multiuse rangeland watershed
    – Known management on much of the watershed
    – Easily re-instrumented
Expansion of Capabilities
  • Incorporation of the Rangeland Hydrology Erosion Model (RHEM)
  • Incorporation Ecological Sites (Site descriptions) as inputs parameters
  • Fencing and Animal Distribution inputs Make KINEROS a continuous model
  • Introduce Snow Hydrology
  • Allow user supplied inputs (monitoring data, rangeland health assessments, etc.)
  • Economic analysis
Automated Geospatial Watershed Assessment Tool
  • GIS-based tool kit
  • Interface allowing users to parameterize, run, and visualize two hydrologic models
    - SWAT
    - KINEROS2
  • Uses readily available data layers
    - Standard DEM
    - Soils (STATSGO, SSURGO, FAO)
    - Land Use/Land Cover (MRLC, NLCD, GAP)
    - Precipitation (user defined or NOAA)
Brief History
The AGWA Project is over 10 years old.
  • Watershed analysis and assessment of changing landscapes
  • In the EPA BASINS toolkit
  • Versions available in ArcView 3.x and ArcGIS 9.x
  • Google: AGWA Watershed - http://www.tucson.ars.ag.gov/agwa
AWGA Process
  • Data: DEM, land cover, soils, precipitation
  • Watershed delineation and discretization
  • Model selection: KINEROS2 or SWAT
  • Plane & channel parameterization
  • Run selected model
  • Visualize model results
R.AWAG
  • Integration of several projects to transform the current operational AGWA tool into a comprehensive Rangeland Automated Geospatial Watershed Assessment (R.AGWA) tool.
  • Expands the functionality of AGWA to address rangeland issues.
Expansion Capabilities
  • Incorporation of the Rangeland Hydrology Erosion Model (RHEM)
  • Incorporation Ecological Sites (Site descriptions) as inputs parameters
  • Fencing and Animal Distribution inputs
  • Make KINEROS a continuous model
  • Introduce Snow Hydrology
  • Allow user supplied inputs (monitoring data, rangeland health assessments, etc.)
  • Economic analysis
Future Work
  • Continue to work with Ecological Site Parameterization
  • Add snow hydrology