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Online Guide to MODFLOW-2000

Navigation: Groundwater Flow Process

MULT - Multiplier File

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Abbreviation in Name file

MULT

Purpose

The Multiplier File  is used to specify multiplier arrays which can be used to calculate layer variables from parameter values.

Documentation

Harbaugh, A.W., Banta, E.R., Hill, M.C., and McDonald, M.G., 2000, MODFLOW-2000, the U.S. Geological Survey modular ground-water model -- User guide to modularization concepts and the Ground-Water Flow Process: U.S. Geological Survey Open-File Report 00-92, 121 p.

ofr-00-92-errata.pdf

Harbaugh, A.W., 2005, MODFLOW-2005, the U.S. Geological Survey modular ground-water model -- the Ground-Water Flow Process: U.S. Geological Survey Techniques and Methods 6-A16. https://doi.org/10.3133/tm6A16

Hanson, R.T., Boyce, S.E., Schmid, Wolfgang, Hughes, J.D., Mehl, S.M., Leake, S.A., Maddock, Thomas, III, and Niswonger, R.G., 2014, One-Water Hydrologic Flow Model (MODFLOW-OWHM): U.S. Geological Survey Techniques and Methods 6–A51, 120 p., http://dx.doi.org/10.3133/tm6A51.

Supported in

MODFLOW-2000

MODFLOW-2005

MODFLOW-LGR

MODFLOW-CFP

MODFLOW-NWT

MODFLOW-OWHM

Other Notes

Multiplier arrays are used in the ADV2, ETS, EVT, HUF2, KDEP, LPF, LVDA, RCH, and UPW (MODFLOW-NWT) input files.

Input Instructions

Input to define multiplier arrays is read from the file that is specified with "MULT" as the file type. Multiplier arrays can be used to calculate layer variables from parameter values.

FOR EACH SIMULATION

Data Set 0

[#Text]

Item 0 is optional—“#” must be in column 1. Item 0 can be repeated multiple times.

Data Set 1

NML

Repeat Item 2 with Items 3 or 4 until NML multiplier arrays, vectors, or scalars have been defined.

Data Set 2

MLTNAM [ FUNCTION]

Data Set 3

[RMLT(NCOL,NROW)] - U2DREL

If Item 2 does not contain the optional FUNCTION key word, read item 3.

Data Set 4

[MLTNAM1 [op1 MLTNAM2] [op2 MLTNAM3] [op3 MLTNAM4] ... ] [IPRN]

Item 4 is only read if Item 3 contains the optional FUNCTION key word.

 

 

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