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Online Guide to MODFLOW-LGR

Abbreviation in Name file

RES

Purpose

The Reservoir Boundary package simulates leakage between a reservoir and an underlying groundwater system as the reservoir area expands and contracts in response to changes in reservoir stage.  The user can specify beginning and ending stages for the reservoir in each stress period.

Unlike the Lake package, the head in reservoirs is unaffected by the interaction between the reservoir and the groundwater.

Documentation

Fenske, J.P., Leake, S.A., and Prudic, D.E., 1996, Documentation of a computer program (RES1) to simulate leakage from reservoirs using the modular finite-difference ground-water flow model (MODFLOW): U.S. Geological Survey Open-File Report 96-364, 51 p.

Related Packages

Head-Dependent Flux Boundary packages

River package

Lake package

Supported in

MODFLOW-2000

MODFLOW-2005

MODFLOW-LGR

MODFLOW-CFP

MODFLOW-NWT

MODFLOW-OWHM

Input Instructions

Input for RES1 is read from the file that has file type "RES" in the name file.

FOR EACH SIMULATION

Data Set 1

NRES IRESCB NRESOP IRESPT NPTS

Format: I10 I10 I10 I10 I10

Data Set 2

IRES(NCOL,NROW)

Module: U2DINT

Data Set 3

IRESL(NCOL,NROW)

Module: U2DINT

IF NRESOP DOES NOT EQUAL 2, SKIP DATA ITEM 3

Data Set 4

BRES(NCOL,NROW)

Module: U2DREL

Data Set 5

HCres(NCOL,NROW)

Module: U2DREL

Data Set 6

Rbthck(NCOL,NROW)

Module: U2DREL

FOR EACH STRESS PERIOD

FOR EACH OF NRES RESERVOIRS

Data Set 7

Ststage Endstage

Format: F10.0 F10.0

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