For direct download of daily composites, use this link and complete the pattern for with daily composite filename:
where yyyy = Year and ddd=day of year.
Please acknowledge "NOAA CoastWatch/OceanWatch" when you use data from our site and cite the particular dataset DOI as appropriate.
CoastWatch/OceanWatch produces 0.25-degree longitude/latitude Level-3 gridded sea-surface salinity (SSS) daily mean dataset by box averaging Soil Moisture Active Passive (SMAP) satellite observations over the global ocean.
CoastWatch/OceanWatch Level-3 SSS products are generated directly from the NASA Jet Propulsion Laboratory (JPL) SMAP Level-2B SSS near real time swath HDF5 files. These products improve the application of satellite SSS products in NOAA by minimizing the data latency to within 24 hours of Level-2 data availability.
Soil Moisture Active Passive (SMAP)
Sea Surface Salinity and Sea Surface Wind Speed
|Short Name|| |
SMAP SSS, SMAP SSW
|Sample Filename|| |
|Processing Level|| |
CoastWatch Level-3 from NASA JPL Level-2B
|Spatial Coverage|| |
|Temporal Coverage|| |
From 1 April 2015 to present
within 24 h from the availabilityof L2 data
30 km nominal sensor resolution; CoastWatch Level-3 product is gridded to 0.25º (~25 km)
|Swath Width|| |
29 km x 35 km
|Sample Frequency|| |
|Temporal Repeat|| |
|Orbital Period|| |
circular polar-orbiting at 685 km (426 mi) altitude with 8-day repeating ground track
|Data Provider|| |
Level 2B SMAP from NASA JPL
(CoastWatch PNGs in process)
SMAP, salinity, SSS