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Record Search Query: ServiceParameters>MODELS>EARTH SCIENCE REANALYSES/ASSIMILATION MODELS

Mosaic Land Surface Model
Entry ID: NASA_MOSAIC_LSM
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Summary
Abstract: The Mosaic land surface model (LSM) computes areally-averaged energy and water fluxes from the land surface in response to meteorological forcing. The model allows explicit vegetation control over the computed surface energy and water balances, with environmental stresses (high temperatures, dry soil, etc.) acting to increase canopy resistance and thus decrease transpiration. The scheme includes a canopy interception reservoir and three soil reservoirs: a thin layer near the surface, a middle layer that encompasses the remainder of the root zone, and a lower "recharge" layer for long term storage. Bare soil evaporation, transpiration, and interception loss occur in parallel, and runoff occurs both as overland flow during precipitation events and as ground water drainage out of the recharge layer. A complete snow budget is included. The model was originally derived from the SiB model of Sellers et al. (J. Climate, 1996) and still maintains certain SiB for mulations, particularly those for canopy resistance.

The model's main innovation is its attempt to account for subgrid variability in surface characteristics through the "mosaic" approach. A grid square area containing several different vegetation regimes is divided into relatively homogeneous sub-regions ("tiles" of the mosaic), each containing a single vegetation or bare soil type. Observed vegetation distributions are used to determine the partitioning. A separate energy balance is calculated for each tile, and each tile maintains its own prognostic soil moisture contents and temperatures.

[Summary provided by NASA.]

Related URL
Link: GET DATA
Description: Request model data.
Service Citation
Title: Mosaic Land Surface Model
Provider: NASA
URL: http://nsipp.gsfc.nasa.gov/research/land/mosaic.html
ISO Topic Category
FARMING
BIOTA
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER
INLAND WATERS
Service Provider
Global Modeling and Assimilation, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Service Provider Personnel
Name: GMAO HELP DESK
Phone: 1-301-614-6142
Email: www at gmao.gsfc.nasa.gov
Contact Address:
Global Modeling and Assimilation Office, Code 610.1
Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Personnel
GMAO HELP DESK
Role: TECHNICAL CONTACT
Phone: 1-301-614-6142
Email: www at gmao.gsfc.nasa.gov
Contact Address:
Global Modeling and Assimilation Office, Code 610.1
Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
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: 2006-11-13
SERF Last Revision Date: 2014-01-21
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