Aquarius Official Release Level 3 Rain-flagged Sea Surface Salinity Standard Mapped Image Seasonal Data V5.0

Aquarius Level 3 sea surface salinity (SSS) rain-flagged standard mapped image data contains gridded 1 degree spatial resolution SSS averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the Seasonal rain-flagged rain-flagged sea surface salinity product for version 5.0 of the Aquarius data set. The Aquarius instrument is onboard the AQUARIUS/SAC-D satellite, a collaborative effort between NASA and the Argentinian Space Agency Comision Nacional de Actividades Espaciales (CONAE). The instrument consists of three radiometers in push broom alignment at incidence angles of 29, 38, and 46 degrees incidence angles relative to the shadow side of the orbit. Footprints for the beams are: 76 km (along-track) x 94 km (cross-track), 84 km x 120 km and 96km x 156 km, yielding a total cross-track swath of 370 km. The radiometers measure brightness temperature at 1.413 GHz in their respective horizontal and vertical polarizations (TH and TV). A scatterometer operating at 1.26 GHz measures ocean backscatter in each footprint that is used for surface roughness corrections in the estimation of salinity. The scatterometer has an approximate 390km swath.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	August 25, 2026, 09:07 (UTC)
Created	April 1, 2025, 14:26 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	ac57a45a-580d-4921-b095-b63a1767e0d4
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	10.5067/AQR50-3Y3CE
license	https://www.usa.gov/government-works
modified	2026-08-17T22:16:01Z
programCode	{026:000}
publisher	AR/CREDAS;NASA/JPL/PODAAC
resource-type	Dataset
source_datajson_identifier	true
source_hash	0cb4b4a8257268429f378c2ee3765e42ee9a914b6023d835b1fde6d19859cfca
source_schema_version	1.1
spatial	["CARTESIAN", [{"EastBoundingCoordinate": 180.0, "NorthBoundingCoordinate": 90, "SouthBoundingCoordinate": -90, "WestBoundingCoordinate": -180.0}]]
temporal	2011-08-25/2015-06-07
theme	{"Earth Science"}