thumbnail

Estimation of groundwater recharge parameters by time series analysis

Water Resources Research

By:
and
https://doi.org/10.1029/WR019i006p01531

Links

Abstract

A model is proposed that relates water level fluctuations in a Dupuit aquifer to effective precipitaton at the top of the unsaturated zone. Effective precipitation, defined herein as that portion of precipitation which becomes recharge, is related to precipitation measured in a nearby gage by a two-parameter function. A second-order stationary assumption is used to connect the spectra of effective precipitation and water level fluctuations. Measured precipitation is assumed to be Gaussian, in order to develop a transfer function that relates the spectra of measured and effective precipitation. A nonlinear least squares technique is proposed for estimating parameters of the effective-precipitation function. Although sensitivity analyses indicate difficulties that may be encountered in the estimation procedure, the methods developed did yield convergent estimates for two case studies.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Estimation of groundwater recharge parameters by time series analysis
Series title:
Water Resources Research
DOI:
10.1029/WR019i006p01531
Volume:
19
Issue:
6
Year Published:
1983
Language:
English
Publisher:
American Geophysical Union
Description:
16 p.
First page:
1531
Last page:
1546