---
access_dt: ~
aliases:
  - context: dataset
    lexicon: podaac
    term: AQUARIUS_L3_DENSITY_SMI_SEASONAL-CLIMATOLOGY_V4
    url: http://podaac.jpl.nasa.gov/dataset/AQUARIUS_L3_DENSITY_SMI_SEASONAL-CLIMATOLOGY_V4
  - context: datasetId
    lexicon: podaac
    term: PODAAC-AQR40-3DVCS
    url: http://podaac.jpl.nasa.gov/ws/search/dataset?datasetId=PODAAC-AQR40-3DVCS
attributes: ~
cite_metadata: ~
cited_by: []
contributors:
  - display_name: 'Data Archive : NASA JPL Physical Oceanography Distributed Active Archive Center '
    href: http://52.38.26.42:8080/contributor/3712.yaml
    id: 3712
    organization:
      country_code: US
      display_name: NASA JPL Physical Oceanography Distributed Active Archive Center
      identifier: physical-oceanography-distributed-active-archive-center
      name: NASA JPL Physical Oceanography Distributed Active Archive Center
      organization_type_identifier: federal
      type: organization
      url: http://podaac.jpl.nasa.gov
    organization_uri: /organization/physical-oceanography-distributed-active-archive-center
    person: {}
    person_id: ~
    person_uri: ~
    role_type_identifier: data_archive
    uri: /contributor/3712
data_qualifier: ~
description: 'Aquarius Level 3 sea surface density standard mapped image data contains gridded 1 degree spatial resolution derived density averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the seasonal climatology, sea surface density product for version 4.0 of the Aquarius data set, which is the official end of prime mission public data release from the AQUARIUS/SAC-D mission. 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.'
description_attribution: http://podaac.jpl.nasa.gov/dataset/AQUARIUS_L3_DENSITY_SMI_SEASONAL-CLIMATOLOGY_V4
display_name: Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Seasonal Climatology Data V4.0
doi: ~
end_time: 2015-06-07T12:51:00
files: []
href: http://52.38.26.42:8080/dataset/nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4.yaml
identifier: nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4
instrument_measurements:
  - dataset_identifier: nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4
    display_name: sac-d-aquarius/aquarius-l-band-radiometer/nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4
    instrument_identifier: aquarius-l-band-radiometer
    platform_identifier: sac-d-aquarius
    type: instrument_measurement
  - dataset_identifier: nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4
    display_name: sac-d-aquarius/aquarius-l-band-scatterometer/nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4
    instrument_identifier: aquarius-l-band-scatterometer
    platform_identifier: sac-d-aquarius
    type: instrument_measurement
lat_max: 90
lat_min: -90
lon_max: 180
lon_min: -180
name: Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image Seasonal Climatology Data V4.0
native_id: AQUARIUS_L3_DENSITY_SMI_SEASONAL-CLIMATOLOGY_V4
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: 2015-06-17T01:23:58
scale: ~
scope: ~
spatial_extent: ~
spatial_ref_sys: ~
spatial_res: ~
start_time: 2011-08-25T00:00:00
temporal_extent: ~
temporal_resolution: ~
type: dataset
uri: /dataset/nasa-podaac-aquarius_l3_density_smi_seasonal-climatology_v4
url: http://podaac.jpl.nasa.gov/dataset/AQUARIUS_L3_DENSITY_SMI_SEASONAL-CLIMATOLOGY_V4
variables: ~
version: ~
vertical_extent: ~