Description
This data set contains forty-four fields simulated from the VIC 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 VIC model was developed at the University of Washington and Princeton University as a macroscale, semi-distributed, grid-based, hydrologic model [Liang et al., 1994; Wood et al., 1997]. The full water and energy balance modes of VIC were used for NLDAS-2. VIC uses three soil layers, with thicknesses that vary spatially. The root zone depends on the vegetation type and its root distribution, and can span all three soil layers. The VIC model includes a two-layer energy balance snow model [Cherkauer et al., 2003].
Details about the NLDAS-2 configuration of the VIC LSM can be found in Xia et al. (2012). The version of the VIC model for the NLDAS-2 VIC data available from the NASA GES DISC is VIC-4.0.3; this version of the VIC model is the same as used in Sheffield et al. (2003).
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| This dataset's landing page | HTML | Access the dataset landing page from the GES DISC website. | Open resource |
| View documentation related to this dataset | HTML | GES DISC Hydrology Documentation | Open resource |
| View this dataset's how-to documentation | HTML | How to read and plot the data. | Open resource |
| Get a related visualization | PNG | NLDAS-2 VIC Hourly 0.125 degree Soil moisture content (0-100 cm) [kg m-2] 00Z January 02, 1979. | Open resource |
| View this dataset's read me document | README Document | Open resource | |
| Download this dataset through a directory map | HTML | Access the data via HTTPS. | Open resource |
| Use GRADS DATA SERVER (GDS) to access the dataset's data | HTML | The GrADS Data Server (GDS) is another form of OPeNDAP that provides subsetting and some analysis services across the Internet. | Open resource |
| Use OPeNDAP to access the dataset's data | HTML | Access the data via the OPeNDAP protocol. | Open resource |
| The dataset's project home page | HTML | NLDAS Project Web Site | Open resource |
| Google Scholar search results | HTML | Search results for publications that cite this dataset by its DOI. | Open resource |
| Download this dataset through Earthdata Search | HTML | Use the Earthdata Search to find and retrieve data sets across multiple data centers. | Open resource |