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SWB-A modified Thornthwaite-Mather Soil-Water-Balance code for estimating groundwater recharge

Techniques and Methods 6-A31

Groundwater Resources Program
By:
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Abstract

A Soil-Water-Balance (SWB) computer code has been developed to calculate spatial and temporal variations in groundwater recharge. The SWB model calculates recharge by use of commonly available geographic information system (GIS) data layers in combination with tabular climatological data. The code is based on a modified Thornthwaite-Mather soil-water-balance approach, with components of the soil-water balance calculated at a daily timestep. Recharge calculations are made on a rectangular grid of computational elements that may be easily imported into a regional groundwater-flow model. Recharge estimates calculated by the code may be output as daily, monthly, or annual values.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
SWB-A modified Thornthwaite-Mather Soil-Water-Balance code for estimating groundwater recharge
Series title:
Techniques and Methods
Series number:
6-A31
Edition:
-
Year Published:
2010
Language:
ENGLISH
Publisher:
U.S. Geological Survey
Contributing office(s):
Wisconsin Water Science Center
Description:
viii, 52 p.; Appendices
Online Only (Y/N):
N
Additional Online Files(Y/N):
N