N: 70 S: -70 E: 180 W: -180
Description
Version 08 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 08.
3GPROF products provide global gridded monthly/daily precipitation averages from multiple satellites that can be used for climate studies. The 3GPROF products are based on retrievals from high-quality microwave sensors, which are sensitive to liquid and ice-phase precipitation hydrometeors in the atmosphere.
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ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
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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 |
|---|---|---|---|---|---|---|---|
| Grid/cloudWaterContent | Mmean of the cloud liquid water content for each grid at each vertical layer | g/m^3 | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/cloudWaterPath | Monthly mean of the total integrated cloud water in the vertical atmospheric column | kg/m^2 | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/convectivePrecipitation | Monthly mean of the instantaneous convective precipitation rate at the surface for each grid | mm/hr | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/fractionQuality0 | Fraction of the retrieved pixels in a given grid box identified as good retrievals | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/fractionQuality1 | Fraction of total pixels with qualityFlag equal to 1 (use with caution) for each grid | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/fractionQuality2 | Fraction of total pixels with qualityFlag equal to 2 (use with extreme care over snow covered surface) for each grid | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/fractionQuality3 | Fraction of total pixels with qualityFlag equal to 3 (use with extreme caution) for each grid | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/frozenPrecipitation | Monthly mean of the instantaneous frozen precipitation rate at the surface for each grid | mm/hr | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/iceFraction | Monthly mean of the ice fraction (fraction of the pixel that is ice surface) for each grid | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/iceWaterContent | Monthly mean of the ice water content for each grid at each vertical layer | g/m^3 | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/iceWaterPath | Monthly mean of the total integrated ice water in the vertical atmospheric column | kg/m^2 | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/landFraction | Monthly mean of the land fraction (fraction of the pixel that is land) for each grid | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/lat | Latitude at the center of 0.25 degree grid intervals of latitude from -90 to 90. | degrees_north | float32 | N/A | N/A | N/A | N/A |
| Grid/latentHeating | Monthly mean of the latent heating for each grid at each vertical layer | K/hr | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/lat_bnds | Latitude of the south and north edges of the grid boxes | degrees_north | float32 | N/A | N/A | N/A | N/A |
| Grid/layer | Height at the center of vertical layer. | kilometers | float32 | N/A | N/A | N/A | N/A |
| Grid/layer_bnds | Height of the lower and upper edges of the layers | kilometers | float32 | N/A | N/A | N/A | N/A |
| Grid/lon | Longitude at the center of 0.25 degree grid intervals of longitude from -180 to 180. | degrees_east | float32 | N/A | N/A | N/A | N/A |
| Grid/lon_bnds | Longitude of the west and east edges of the grid boxes | degrees_east | float32 | N/A | N/A | N/A | N/A |
| Grid/mountainIndex | K3 mountain classification from No mountains (0) scattered low moutnains (1), low mountains (2), scattered high mountains (3) and high mountains (4) | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/npixPrecipitation | Monthly number of pixels with surfacePrecipitation greater than 0 and precipitationYesNoFlag equal to 1 for each grid | N/A | int32 | -9999 | N/A | N/A | N/A |
| Grid/npixTotal | Monthly number of pixels with pixelStatus equal to zero for each grid | N/A | int32 | -9999 | N/A | N/A | N/A |
| Grid/rainWaterContent | Monthly mean of the rain water content for each grid at each vertical layer | g/m^3 | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/rainWaterPath | Monthly mean of the total integrated rain water in the vertical atmospheric column | kg/m^2 | float32 | -9999.900390625 | N/A | N/A | N/A |
| Grid/snowFraction | Fraction of total pixels with snowFlag equal to 1 (snow on the ground) for each grid | N/A | int16 | -9999 | N/A | N/A | N/A |
| Grid/surfacePrecipitation | Monthly mean of the instantaneous precipitation rate at the surface for each grid | mm/hr | float32 | -9999.900390625 | N/A | N/A | N/A |
| InputAlgorithmVersions | InputAlgorithmVersions | N/A | OTHER | N/A | N/A | N/A | N/A |
| InputFileNames | InputFileNames | N/A | OTHER | N/A | N/A | N/A | N/A |
| InputGenerationDateTimes | InputGenerationDateTimes | N/A | OTHER | N/A | N/A | N/A | N/A |