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Catalog datasets represent a fraction of data in use by active WMA projects. The team is working on including more datasets to provide a complete view of data-in-use. Let us know how your experience is!

Datasets

NLDAS Noah Land Surface Model L4 Hourly 0.125 x 0.125 degree V2.0 (NLDAS_NOAH0125_H)

Domain: Climate; Snow; Land Cover; Hydrology

Variables:
▶ Total evapotranspiration; Water equivalent of accumulated snow depth; Snow depth; Albedo; Soil temperature;
See 35 More Variables...

Spatial Resolution: 0.125 degrees

Temporal Frequency: hourly

Temporal Coverage: 1979 - Present

Spatial Extent: CONUS

Source: NASA

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Description:

NLDAS Noah land surface model output.
This data set contains fifty-three fields 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 hourly. The file format is netCDF (converted from the GRIB format).
The Noah model was developed as the land component of the NOAA NCEP mesoscale Eta model (Betts and others. (1997); Chen and others (1997); Ek and others (2003)). As used in NLDAS-2, recent modifications were made to Noah’s cold-season (Livneh and others (2010)) and warm-season (Wei and others (2012)) parameterizations. Noah serves as the land component in the evolving Weather Research and Forecasting (WRF) regional atmospheric model, the NOAA NCEP coupled Climate Forecast System (CFS), and the Global Forecast System (GFS). The model simulates the soil freeze-thaw process and its impact on soil heating/cooling and transpiration, following Koren and others (1999). The model has four soil layers with spatially invariant thicknesses of 10, 30, 60, and 100 cm. The first three layers form the root zone in non-forested regions, with the fourth layer included in forested regions.
Details about the NLDAS-2 configuration of the Noah LSM can be found in Xia and others (2012).

Citation:

Xia, Y., Mitchell, K., Ek, M., Sheffield, J., Cosgrove, B., Wood, E., Luo, L., Alonge, C., Wei, H., Meng, J., Livneh, B., Lettenmaier, D., Koren, V., Duan, Q., Mo, K., Fan, Y., Mocko, D., 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, https://doi.org/10.1029/2011JD016048 .