Data TypeData nameLevelAccess linkSpatial resolutionTemporal resolutionTemporal coverage
In situEN.4.2.2 (Argo, WOD, GTSPP, and ASBO)profile & griddedhttps://www.metoffice.gov.uk/hadobs/en4/download-en4-2-2.html1°x 1°monthly1900/1/1-present
SatelliteSMAP RSS V5.0L2https://podaac.jpl.nasa.gov/dataset/SMAP_RSS_L2_SSS_V5~70km98-minute orbit2015/4/1-present
SMAP RSS V5.0L3https://podaac.jpl.nasa.gov/dataset/SMAP_RSS_L3_SSS_SMI_MONTHLY_V50.25°x0.25°Monthly2015/4/1-present
SMOS v700L2https://earth.esa.int/eogateway/catalog/smos-science-products30-80 km50-minute half orbit2010/6/1-present
SMOS CATDS-CPDC  (RE07 & OPER)L3https://www.catds.fr/Products/Available-products-from-CPDC50km x 50kmmonthly2010/1/1-present
ModelHYCOMIncluded in SMAP L2 producthttps://podaac.jpl.nasa.gov/dataset/SMAP_RSS_L2_SSS_V5Same as SMAP L2Same as SMAP L22015/4/1-present