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Record Search Query: ServiceParameters>MODELS>HYDROLOGIC AND TERRESTRIAL WATER CYCLE MODELS

VSIM - Water Balance Model
Entry ID: VSIM
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Summary
Abstract: VSIM is a simple water balance model embedded in an Excel spreadsheet that
simulates the daily and seasonal water balance for a vineyard (block) given
data on weather, soils, and leaf area. VSIM takes advantage of publicly
available weather and evatranspiration data from the California Irrigation
Management Information System (CIMIS). The user can manipulate climate, leaf
area, soil water, and cover crop to examine effects on soil moisture, vine
water stress, and corresponding irrigation need. Daily water gains
(precipitation, irrigation) and losses (evapotranspiration, runoff) are used to
calculate a daily water balance. The current release of the model should be
considered a "beta" (test) version, both in format and substance. During
2005-06, VSIM is being further developed and validated under the California
Dept. Water Resources' Water Use Efficiency Program. The user should have a
working knowledge of Microsoft Excel 1998 or later.

http://geo.arc.nasa.gov/sge/vintage/vsim.html

Related URL
Link: GET SERVICE
Description: The Water Balance Model embedded in an Excel spreadsheet.

Link: VIEW RELATED INFORMATION
Description: VINTAGE

(Viticultural Integration of NASA Technologies for Assessment of the Grapevine
Environment)
Service Citation
Title: VSIM - Water Balance Model
Release_Date: 2003-05-01
Provider: AMES, NASA
URL: http://geo.arc.nasa.gov/sge/vintage/vsim.html
ISO Topic Category
FARMING
GEOSCIENTIFIC INFORMATION
INLAND WATERS
Service Provider
Ecosystem Science and Technology Branch, Earth Sciences Division, Ames Research Center, NASA

Service Provider Personnel
Name: DON V. SULLIVAN
Email: Donald.V.Sullivan at nasa.gov
Contact Address:
NASA Ames Research Center
City: Moffett Field
Province or State: CA
Postal Code: 94035-1000
Country: USA
Personnel
LEE F. JOHNSON
Role: TECHNICAL CONTACT
Phone: 650-604-3331
Fax: 650-604-4680
Email: ljohnson at mail.arc.nasa.gov
Contact Address:
CSU Monterey Bay, Earth Systems Science & Policy
MS242-4
NASA Ames Research Center
City: Moffett Field
Province or State: CA
Postal Code: 94035-1000
Country: USA

TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Creation and Review Dates
SERF Creation Date: 2005-12-22
SERF Last Revision Date: 2009-05-06
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