N: 53 S: 25 E: -67 W: -125
Description
This data set contains thirty-seven fields 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 monthly. The file format is netCDF (converted from the GRIB format).
The NLDAS-2 monthly Mosaic model data, containing thirty-seven fields, were generated from the NLDAS-2 hourly Mosaic 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.
Details about the NLDAS-2 configuration of the Mosaic LSM can be found in Xia et al. (2012).
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Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| ACond | ACond | m s-1 | float32 | -9999 | N/A | 1 | 0 |
| Albedo | Albedo | % | float32 | -9999 | N/A | 1 | 0 |
| AvgSurfT | AvgSurfT | K | float32 | -9999 | N/A | 1 | 0 |
| CanopInt | CanopInt | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| CCond | CCond | m s-1 | float32 | -9999 | N/A | 1 | 0 |
| ECanop | ECanop | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| ESoil | ESoil | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Evap | Evap | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| GVEG | GVEG | fraction | float32 | -9999 | N/A | 1 | 0 |
| LAI | LAI | unitless | float32 | -9999 | N/A | 1 | 0 |
| lat | lat | degrees_north | float32 | -9999 | N/A | 1 | 0 |
| lon | lon | degrees_east | float32 | -9999 | N/A | 1 | 0 |
| LWdown | LWdown | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| LWnet | LWnet | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qf | Qf | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qg | Qg | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qh | Qh | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qle | Qle | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qs | Qs | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qsb | Qsb | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| Qsm | Qsm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| Rainf | Rainf | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SMAvail_0_40cm | SMAvail_0_40cm | % | float32 | -9999 | N/A | 1 | 0 |
| SMAvail_0_200cm | SMAvail_0_200cm | % | float32 | -9999 | N/A | 1 | 0 |
| SnowDepth | SnowDepth | m | float32 | -9999 | N/A | 1 | 0 |
| Snowf | Snowf | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SnowFrac | SnowFrac | fraction | float32 | -9999 | N/A | 1 | 0 |
| SoilM_0_10cm | SoilM_0_10cm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilM_0_40cm | SoilM_0_40cm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilM_0_100cm | SoilM_0_100cm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilM_0_200cm | SoilM_0_200cm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilM_10_40cm | SoilM_10_40cm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilM_40_200cm | SoilM_40_200cm | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SoilT | SoilT | K | float32 | -9999 | N/A | 1 | 0 |
| Streamflow | Streamflow | m^3 sec-1 | float32 | -9999 | N/A | 1 | 0 |
| SubSnow | SubSnow | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| SWdown | SWdown | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| SWE | SWE | kg m-2 | float32 | -9999 | N/A | 1 | 0 |
| SWnet | SWnet | W m-2 | float32 | -9999 | N/A | 1 | 0 |
| time | time | hours since 1979-01-01 00:00:00 | float64 | N/A | N/A | N/A | N/A |
| time_bnds | time_bnds | N/A | float64 | N/A | N/A | N/A | N/A |
| TVeg | TVeg | W m-2 | float32 | -9999 | N/A | 1 | 0 |