NLDAS Noah Land Surface Model L4 Monthly 0.125 x 0.125 degree V002 (NLDAS_NOAH0125_M) at GES DISC
Entry ID: GES_DISC_NLDAS_NOAH0125_M_V002

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Summary
Abstract: This data set contains a series of land surface parameters simulated from the Noah 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 monthly. The file format is WMO GRIB-1. The NLDAS-2 monthly Noah model data were generated from the NLDAS-2 hourly Noah model data, as monthly accumulation for rainfall, snowfall, subsurface runoff, surface runoff, total evapotranspiration, and snow melt, and monthly average for other variables. Monthly period of each month is from 00Z at start of the month to 23:59Z at end of the month, except the first month (Jan. 1979) that starts from 00Z 02 Jan 1979. Also for the first month ( Jan 1979), because the variables listed as instantaneous in the README file (http://hydro1.sci.gsfc.nasa.gov/data/s4pa/NLDAS/README.NLDAS2.pdf) do not have valid data exactly on 00Z 02 Jan 1979, and this one hour is not included in the average for this month only.

Brief description about the NLDAS-2 monthly Noah model can be found from the GCMD DIF for GES_DISC_NLDAS_NOAH0125_H_V002 at http://gcmd.gsfc.nasa.gov/getdif.htm?GES_DISC_NLDAS_NOAH0125_H_V002.

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

The NLDAS-2 Noah monthly data contain fifty-two 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]
151:LSOIL0_10cm:0-10 cm liquid soil moisture content (non-frozen) [kg/m^2]
151:LSOIL10_40cm:10-40 cm liquid soil moisture content (non-frozen) [kg/m^2]
151:LSOIL40_100cm:40-100 cm liquid soil moisture content (non-frozen) [kg/m^2]
151:LSOIL100_200cm:100-200 cm liquid soil moisture content (non-frozen) [kg/m^2]
207:MSTAV0_100cm:0-100 cm 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]
145:PEVPRsfc:Potential evaporation rate [W/m^2]
248:RCQsfc:Humidity parameter in canopy conductance [fraction]
246:RCSsfc:Solar parameter in canopy conductance [fraction]
249:RCSOLsfc:Soil moisture parameter in canopy conductance [fraction]
247:RCTsfc:Temperature parameter in canopy conductance [fraction]
255:RSMACRsfc:Relative soil moisture availability control factor [0-1]
203:RSMINsfc:Minimal stomatal resistance [s/m]
250:RZSMgnd:Root zone soil moisture [kg/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_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_100cm:40-100 cm layer 3 Soil moisture content [kg/m^2]
86:SOILM100_200cm:100-200 cm layer 4 Soil moisture content [kg/m^2]
235:SSRUNsfc:Surface runoff (non-infiltrating) [kg/m^2]
210:TRANSsfc:Transpiration [W/m^2]
85:TSOIL0_10cm:0-10 cm Soil temperature [K]
85:TSOIL10_40cm:10-40 cm Soil temperature [K]
85:TSOIL40_100cm:40-100 cm Soil temperature [K]
85:TSOIL100_200cm:100-200 cm 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: VIEW PROJECT HOME PAGE


Link: VIEW RELATED INFORMATION
Description: Information about NLDAS-2 models.


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: NCEP/EMC
Dataset Title: NLDAS Noah Land Surface Model L4 Monthly 0.125 x 0.125 degree
Dataset Release Date: 03.01.2012
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


Temporal Coverage
Start Date: 1979-01-02


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ARIZONA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ARKANSAS
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > COLORADO
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CONNECTICUT
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DELAWARE
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > DISTRICT OF COLUMBIA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GEORGIA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > IDAHO
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > INDIANA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > IOWA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > KANSAS
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > KENTUCKY
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSOURI
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MONTANA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEBRASKA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEVADA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW HAMPSHIRE
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW JERSEY
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW MEXICO
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH DAKOTA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OHIO
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OKLAHOMA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > RHODE ISLAND
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH CAROLINA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH DAKOTA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TENNESSEE
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > UTAH
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VERMONT
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WEST VIRGINIA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WISCONSIN
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WYOMING


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


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
NCEP/EMC


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


Publications/References
Xia, Y., K. Mitchell, M. Ek, J. Sheffield, B. Cosgrove, E. Wood, L. Luo, C. Alonge, H. Wei, J. Meng, B. Livneh, D. Lettenmaier, V. Koren, Q. Duan, K. Mo, Y. Fan, and D. Mocko, (2012), Continental-scale water and energy flux analysis and validation for the North American Land Data Assimilation System project phase 2 (NLDAS-2): 1. Intercomparison and application of model products, J. Geophys. Res., 117, D03109, doi:10.1029/2011JD016048.

Betts, A., F. Chen, K. Mitchell, and Z. Janjic (1997), Assessment of the land surface and boundary layer models in two operational versions of the NCEP Eta model using FIFE data, Mon. Weather Rev., 125, 2896-2916,
doi:10.1175/1520-0493(1997)125<2896:AOTLSA>2.0.CO;2.

Chen, F., Z. Janjic, and K. Mitchell (1997), Impact of atmospheric surface-layer parameterizations in the new land-surface scheme of the NCEP mesoscale Eta model, Boundary Layer Meteorol., 85, 391-421, doi:10.1023/A:1000531001463.

Ek, M. B., K. E. Mitchell, Y. Lin, E. Rodgers, P. Grunman, V. Koren, G. Gayno, and J. D. Tarpley (2003), Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model, J. Geophys. Res., 108(D22), 8851, doi:10.1029/2002JD003296.

Koren, V., J. Schaake, K. E. Mitchell, Q. Duan, F. Chen, and J. Baker (1999), A paramerization of snowpack and frozen ground intended for NCEP weather and climate models, J. Geophys. Res., 104, 19569-19585, doi:10.1029/1999JD900232.

Livneh, B., Y. Xia, M. B. Ek, K. E. Mitchell, and D. Lettenmaier (2010), Noah LSM snow model diagnostics and enhancements, J. Hydrometeorol., 11, 721-738, doi:10.1175/2009JHM1174.1.

Wei, H., Y. Xia, K. E. Mitchell, and M. B. Ek (2011), Improvement of Noah land surface model for warm season processes: Evaluation of water and energy flux simulation, Hydrol. Processes, doi:10.1002/hyp.9214.

Creation and Review Dates
DIF Creation Date: 2012-09-06
Last DIF Revision Date: 2012-11-01

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