Sea Surface Salinity - Near Real Time - SMAP

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.

    Data Access
    HTTPS
    THREDDS
    Sea Surface Salinity - Near Real Time - SMAP

    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.  Daily files are available back to the beginning of 2015.

    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.

    Short Names
    SMAP SSS
    Temporal Start Date
    April 1, 2015
    Product Families
    Sea Surface Salinity
    Measurements
    Sea Surface Salinity
    Sea Surface Wind Speed
    Processing Levels
    Level 3
    Latency Groups
    0 Hours <= 24 Hours (NRT)
    Latency Details

    Less than 24 hours

    Spatial Resolution Groups
    2km+
    Spatial Resolution Details

    30 km nominal sensor resolution

    CoastWatch Level-3 product is gridded to 0.25º (~25 km)

    Data Providers
    NASA
    JPL
    Spatial Coverage

    Global

    Description

    180W - 180E
    90N - 90S

    SMAP

    Description

    The Soil Moisture Active Passive

    Platform Type
    Low Earth Orbit Satellite (LEO)
    Instruments
    Organizations
    NASA
    JPL
    Orbital Altitude
    685 km
    Orbital Period
    98.5 Minutes
    Equatorial Crossing Times
    06:00 desc

    SMAP

    Description

    Soil Moisture Active Passive

    Platforms
    Instrument Types
    Imager
    Organizations
    NASA

    ** When you use our data, please reference the product citation (if available) and acknowledge "NOAA CoastWatch" **