Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Ascending Annual Data V5.0

Aquarius Level 3 sea surface density standard mapped image data contains gridded 1 degree spatial resolution density data averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the Annual, Ascending sea surface density product for version 5.0 of the Aquarius data set. Only retrieved values for Ascending passes have been used to create this product. Surface density estimates are based on TEOS-10 and derived using retrieved salinity from Aquarius and collocated ancillary SST (Reynolds OI 0.25 degree product). 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

Field Value
accessLevel public
bureauCode {026:00}
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catalog_@id https://data.nasa.gov/data.json
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citation NASA Aquarius project. 2017-12-07. Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Ascending Annual Data. Version 5.0. Aquarius Sea Surface Salinity Products. Goddard Space Flight Center, 8800 Greenbelt Rd.; Greeenbelt, MD., 20771, USA. Archived by National Aeronautics and Space Administration, U.S. Government, NASA/GSFC OBPG. https://doi.org/10.5067/AQR50-3DAAE. http://podaac.jpl.nasa.gov/SeaSurfaceSalinity/Aquarius. NASA Aquarius project, NASA/GSFC OBPG, 2017-12-07, Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Ascending Annual Data V5.0, http://podaac.jpl.nasa.gov/SeaSurfaceSalinity/Aquarius.
creator NASA Aquarius project
graphic-preview-description Thumbnail
graphic-preview-file https://podaac.jpl.nasa.gov/Podaac/thumbnails/AQUARIUS_L3_DENSITY_SMIA_ANNUAL_V5.jpg
identifier C1649529498-PODAAC
issued 2017-10-21
landingPage https://doi.org/10.5067/AQR50-3DAAE
language {en-US}
metadata_type geospatial
modified 2017-12-07
programCode {026:001}
publisher NASA/JPL/PODAAC
release-place Goddard Space Flight Center, 8800 Greenbelt Rd.; Greeenbelt, MD., 20771, USA
resource-type Dataset
series-name Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Ascending Annual Data
source_datajson_identifier true
source_hash 9411590d2c292f8d886ed7cdeea6f9c699f63ff8
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
temporal 2011-08-25T01:55:23Z/2015-06-07T11:41:38Z
theme {"AQUARIUS SAC-D",geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • earth-science
  • geo
  • geoss
  • national
  • north-america
  • oceans
  • salinity-density
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer User Services
maintainer_email podaac@podaac.jpl.nasa.gov
metadata_created 2025-11-21T21:37:21.365576
metadata_modified 2025-11-21T21:37:21.365580
notes Aquarius Level 3 sea surface density standard mapped image data contains gridded 1 degree spatial resolution density data averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the Annual, Ascending sea surface density product for version 5.0 of the Aquarius data set. Only retrieved values for Ascending passes have been used to create this product. Surface density estimates are based on TEOS-10 and derived using retrieved salinity from Aquarius and collocated ancillary SST (Reynolds OI 0.25 degree product). 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.
num_resources 12
num_tags 11
title Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Ascending Annual Data V5.0