Untitled DocumentPedotransfer functions and land-surface parameters for modeling
Macro Theme Area:
River Systems [Project ID: R03]
PI:
Jirka Simunek
CO-PI(s):
Rien Van Genuchten, Marcel Schaap
Basin focus:
San Pedro
Specific area in
basin /
field sites:
Regional
Summary/Goals: A pragmatic approach to estimate hydraulic properties in the San Pedro basin and simulate water, geochemical and nutrient fluxes. The Hydraulic properties will be estimated with Site-Specific Pedotransfer functions, the water, geochemical and nutrient fluxes will be simulated by interfacing Hydrus-1D, 2-D with other models and databases (PHREEQC,Century, Daisy, SWAT-KINEROS)
Activities and outcomes during past year:
Modeling was conducted to yield site-specific pedotransfer functions for the San Pedro area. Performance of the models was be compared to existing models. Interfacing Hydrus with other simulation models will continue.
Plans for the upcoming year:
GeoChemical modeling, in particular integration of the Hydrus models with other bio-geochemical modules, will continue. Testing and improvement of the pedotranfer functions will be carried out. Where possible we will attempt to produce specific values of hydraulic properties for the San Pedro watershed.
George E. Brown Jr. Salinity Laboratory (USDA-ARS)
Organization Involvement:
N/A
Shared Resources / Joint Activities:
N/A
Location: Riverside, CA, USA
URL: N/A
MEDIA / PUBLICITY
Program Name / Article Title:
"Clustered On-Site Disposal Systems - What's their Cumulative Impact on our Drinking Wells?"
Media Type:
Print
Station / Publisher / Web site:
CSA News (51(08)
Date Aired / Published:
August 2006
Source of Publicity:
, p. 11, August 2006) had an article "Clustered On-Site Disposal Systems - What's their Cumulative Impact on our Drinking Wells?" reporting on manuscript Pang, L., C. Nokes, J. Šimůnek, H. Kikkert, and R. Hector, Modeling the impact of clustered septic tank systems on groundwater quality, Vadose Zone Journal, 5, 599-609, 2006.
Computer Models Can Help Prevent Nonpoint Source Pollution
Media Type:
Print
Station / Publisher / Web site:
CSA News (51(09), p. 7-8
Date Aired / Published:
September 2006
Source of Publicity:
CSA News (51(09), p. 7-8, September 2006) had an article " Computer Models Can Help Prevent Nonpoint Source Pollution" reporting on manuscript Boivin, A., J. Šimůnek, M. Schiavon and M. Th. van Genuchten, A comparison of pesticides transport processes in three contrasting field soils using Hydrus-2D, Vadose Zone Journal, 5, 838-849, 2006.
