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NLDAS Mosaic Land Surface Model L4 Hourly 0.125 x 0.125 degree V002 (NLDAS_MOS0125_H) at GES DISC
Entry ID: GES_DISC_NLDAS_MOS0125_H_V002

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Summary

Abstract: This data set contains a series of land surface parameters simulated
from the Mosaic land-surface model (LSM) for Phase 2 of the North
American Land Data Assimilation System (NLDAS-2). The data are in
1/8th degree grid spacing and range from Jan 1979 to the present.
The temporal resolution is hourly. The file format is WMO GRIB-1.

Details about the NLDAS-2 configuration of the Mosaic LSM can be found in Xia et al. (2012).

Mosaic was developed by Koster and Suarez (1994, 1996) to account for
subgrid vegetation variability with a tile approach. Each vegetation
tile carries its own energy and water balance and soil moisture and
temperature. Each tile has three soil layers, with the first two in the
root zone. In NLDAS, Mosaic is configured to support a maximum of 10
tiles per grid cell with a 5% cutoff that ignores vegetation classes
covering less than 5% of the cell. Additionally in NLDAS, all tiles of
Mosaic in a grid cell have a predominant soil type and three soil layers
with fixed thickness values of 10, 30, and 160 cm (hence constant
rooting depth of 40 cm and constant total column depth of 200 cm).

The Mosaic LSM was forced by the hourly NLDAS-2 forcing "File A" files,
and contains thirty-seven fields. The data set applies a user-defined
parameter table to indicate the contents and parameter number. The
following table shows a list of parameters, their Product Definition
Section (PDS) IDs and units.

PDS_IDs:Short_Name:Full_Name [Unit]
179:ACONDsfc:Aerodynamic conductance [m/s]
84:ALBDOsfc:Albedo [%]
162:ARAINsfc:Rainfall (unfrozen precipitation) [kg/m^2]
161:ASNOWsfc:Snowfall (frozen precipitation) [kg/m^2]
148:AVSFTsfc:Average surface skin temperature [K]
234:BGRUNsfc:Subsurface runoff (baseflow) [kg/m^2]
181:CCONDsfc:Canopy conductance [m/s]
223:CNWATsfc:Plant canopy surface water [kg/m^2]
205:DLWRFsfc:Longwave radiation flux downwards (surface) [W/m^2]
204:DSWRFsfc:Shortwave radiation flux downwards (surface) [W/m^2]
199:EVBSsfc:Direct evaporation from bare soil [W/m^2]
200:EVCWsfc:Canopy water evaporation [W/m^2]
57:EVPsfc:Total evapotranspiration [kg/m^2]
155:GFLUXsfc:Ground heat flux [W/m^2]
182:LAIsfc:Leaf area index (0-9) [unitless]
121:LHTFLsfc:Latent heat flux [W/m^2]
207:MSTAV0_40cm:0-40 cm root zone Moisture availability [%]
207:MSTAV0_200cm:0-200 cm total column Moisture availability [%]
112:NLWRSsfc:Longwave radiation flux net (surface) [W/m^2]
111:NSWRSsfc:Shortwave radiation flux net (surface) [W/m^2]
198:SBSNOsfc:Sublimation (evaporation from snow) [W/m^2]
122:SHTFLsfc:Sensible heat flux [W/m^2]
66:SNODsfc:Snow depth [m]
229:SNOHFsfc:Snow phase-change heat flux [W/m^2]
99:SNOMsfc:Snow melt [kg/m^2]
238:SNOWCsfc:Snow cover [fraction]
86:SOILM0_10cm:0-10 cm layer 1 Soil moisture content [kg/m^2]
86:SOILM0_40cm:0-40 cm root zone Soil moisture content [kg/m^2]
86:SOILM0_100cm:0-100 cm top 1 meter Soil moisture content [kg/m^2]
86:SOILM0_200cm:0-200 cm total column Soil moisture content [kg/m^2]
86:SOILM10_40cm:10-40 cm layer 2 Soil moisture content [kg/m^2]
86:SOILM40_200cm:40-200 cm layer 3 Soil moisture content [kg/m^2]
235:SSRUNsfc:Surface runoff (non-infiltrating) [kg/m^2]
210:TRANSsfc:Transpiration [W/m^2]
85:TSOILdeep:Deep soil temperature [K]
87:VEGsfc:Vegetation [fraction]
65:WEASDsfc:Accumulated snow water-equivalent [kg/m^2]

WGRIB or other GRIB reader is required to read the files.

For more information, please see: http://ldas.gsfc.nasa.gov/faq/#Tools

Related URL

Link: GET DATA

Link: GET DATA > ECHO
Description: Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.

Link: VIEW PROJECT HOME PAGE

Link: VIEW RELATED INFORMATION
Description: NLDAS-2 Model Data Description/Information

Link: VIEW RELATED INFORMATION > USER'S GUIDE
Description: README document for NLDAS Phase 2 data sets.

Geographic Coverage

N: 53.0 S: 25.0 E: -67.0 W: -125.0

Data Set Citation

Dataset Originator/Creator: Hydrological Sciences Laboratory at NASA/Goddard Space Flight Center (GSFC/HSL)
Dataset Title: NLDAS Mosaic Land Surface Model L4 Hourly 0.125 x 0.125 degree
Dataset Release Date: 08.01.2009
Dataset Release Place: Greenbelt, Maryland, USA
Dataset Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
Version: 002
Online Resource: http://disc.sci.gsfc.nasa.gov/hydrology/index.shtml

Temporal Coverage

Start Date: 1979-01-02

Data Resolution
Latitude Resolution: 0.125 degree
Longitude Resolution: 0.125 degree
Temporal Resolution: hr

Science Keywords

ATMOSPHERE >ATMOSPHERIC WATER VAPOR >EVAPORATION    [Definition]

ATMOSPHERE >ATMOSPHERIC WATER VAPOR >EVAPOTRANSPIRATION    [Definition]

ATMOSPHERE >PRECIPITATION >RAIN    [Definition]

ATMOSPHERE >PRECIPITATION >SNOW    [Definition]

ATMOSPHERE >ATMOSPHERIC RADIATION >HEAT FLUX    [Definition]

ATMOSPHERE >ATMOSPHERIC RADIATION >LONGWAVE RADIATION    [Definition]

ATMOSPHERE >ATMOSPHERIC RADIATION >SHORTWAVE RADIATION    [Definition]

BIOSPHERE >VEGETATION >CANOPY CHARACTERISTICS    [Definition]

BIOSPHERE >VEGETATION >LEAF CHARACTERISTICS    [Definition]

BIOSPHERE >VEGETATION >VEGETATION COVER    [Definition]

CRYOSPHERE >SNOW/ICE >SNOW COVER    [Definition]

CRYOSPHERE >SNOW/ICE >SNOW DEPTH    [Definition]

CRYOSPHERE >SNOW/ICE >SNOW MELT    [Definition]

TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW WATER EQUIVALENT    [Definition]

TERRESTRIAL HYDROSPHERE >SURFACE WATER >RUNOFF    [Definition]

LAND SURFACE >LAND TEMPERATURE >LAND SURFACE TEMPERATURE    [Definition]

LAND SURFACE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]

LAND SURFACE >SOILS >SOIL TEMPERATURE    [Definition]

LAND SURFACE >SURFACE RADIATIVE PROPERTIES >ALBEDO    [Definition]

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Project

EOSDIS >Earth Observing System Data Information System    [Information]

ESIP >Earth Science Information Partners Program    [Information]

NLDAS >North American Land Data Assimilation System    [Information]

CWIC >CEOS WGISS Integrated Catalog    [Information]

Quality

The data are provisional and subject to change as model improvements are implemented and new input data sets become available.

Access Constraints

None

Use Constraints

None

Keywords

Hydrology

Data Set Progress

IN WORK

Originating Center

Hydrological Sciences Laboratory at NASA/Goddard Space Flight Center (GSFC/HSL)

Data Center

Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA [Information]
Data Center URL: http://disc.gsfc.nasa.gov/

Data Center Personnel

Name: GES DISC HELP DESK SUPPORT GROUP
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA

Distribution

Distribution_Media: Online (HTTP)
Distribution_Format: GRIB
Fees: No Fee

Personnel

GES DISC HELP DESK SUPPORT GROUP
Role: TECHNICAL CONTACT
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA

Creation and Review Dates

DIF Creation Date: 2012-12-05

Last DIF Revision Date: 2013-01-14

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