| SMAP | ||
|---|---|---|
| RSS (V6) | JPL* (5) | |
| Antenna type | Spinning; 99% reflective (1% emissive) | |
| Global coverage / Repeat orbit | 3 days / 8 days (exact) | |
Data products available:
|
L2C: Standard L3: 8-day Running Mean; Monthly |
L2B: Standard; Near-real-time (6 hours) L3: 8-day Running Mean, Monthly |
| Gridding | 0.25° x 0.25° | 0.25° x 0.25° |
| Feature resolution | 70 km** | ~60 km** |
| RSS (V6) | JPL (5) | |
|---|---|---|
| SST | GHRSST Level 4 from Canadian Meteorological Center [CMC] | NOAA Optimum Interpolation [OI] |
| Atmospheric profile fields | NCEP GDAS 0.25-deg, 6-hour fields [GDAS] | N/A |
| Solar flux | Ancillary mean solar flux from NOAA Space Weather Prediction Center [SWPC] | N/A |
| Wind speed & direction | CCMP V2 [CCMP] | National Centers for Environmental Prediction Global Forecast System [GFS] |
| Land mask | ODPS static 1-km land/water mask from GSFC [ODPS] | US Geological Survey 30-second Land Use Data [USGS] integrated using SMAP antenna patterns |
| Rain | IMERG | Rain effect and rain roughness corrections are in development |
| Dielectric constant | Meissner and Wentz 2004, 2012 | Meissner and Wentz 2004, 2012 |
| Galactic map | Dinnat, E.; Le Vine, D.; Abraham, S.; Floury, N. Map of Sky Background Brightness Temperature at L-Band (2018) | Own derived galaxy correction (3.2.2 of User Guide) |
| Total electron content (TEC) | University of Bern Astronomical Institute (AIUB) Center for Orbit Determination in Europe (CODE) TEC Forecast | N/A |
| Sea ice fraction | Meissner and Manaster, 2021. The AMSR-2 TB inputs are obtained from RSS AS-ECV www.remss.com/missions/amsr | National Centers for Environmental Prediction [NCEP] |
| Argo salinity from Scripps Institution of Oceanography (SIO) | N/A | Used for comparison but not included in data files. |
| Reference salinity field | Hybrid Coordinate Ocean Model [HYCOM] | Hybrid Coordinate Ocean Model [HYCOM] |
| Significant wave height | N/A | NOAA WaveWatch III [WaveWatch III] |