---
access_dt: ~
aliases:
  - context: dataset
    lexicon: podaac
    term: AQUARIUS_L3_SSS_RAINCORRECTED_CAP_7DAY_V4
    url: http://podaac.jpl.nasa.gov/dataset/AQUARIUS_L3_SSS_RAINCORRECTED_CAP_7DAY_V4
  - context: datasetId
    lexicon: podaac
    term: PODAAC-AQR40-3Q7CS
    url: http://podaac.jpl.nasa.gov/ws/search/dataset?datasetId=PODAAC-AQR40-3Q7CS
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: 'Version 4.0 Aquarius CAP Level 3 products are the third release of the AQUARIUS/SAC-D mapped salinity and wind speed data based on the Combined Active Passive (CAP) algorithm. CAP Level 3 standard mapped image products contain gridded 1 degree spatial resolution salinity and wind speed data averaged over 7 day and monthly time scales. This particular data set is the 7-Day running mean sea surface salinity (SSS) rain corrected V4.0 Aquarius CAP product. CAP is a P.I. produced data set developed and provided by the JPL Climate Oceans and Solid Earth group (S. Yueh). The CAP algorithm utilizes data from both the onboard radiometer and scatterometer to simultaneously retrieve salinity, wind speed and direction by minimizing the sum of squared differences between model and observations. The main improvement in CAP V4.0 is calibration of the rain roughness correction geophysical model function to HYCOM SSS adjusted by the Rain Impact Model (RIM) to account for the rain induced near surface stratification. Rain corrected salinity retrieval at L2 is based on collocation with ancillary rain rate from NOAA CMORPH at 0.25 degree and 30 minute resolution, replacing the SSMI/S and WindSAT data previously used previously for this in CAP V3.0. 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_SSS_RAINCORRECTED_CAP_7DAY_V4
display_name: Aquarius CAP Level 3 Sea Surface Salinity Rain Corrected Standard Mapped Image 7-Day Data V4.0
doi: ~
end_time: 2015-06-07T12:00:00
files: []
href: http://52.38.26.42:8080/dataset/nasa-podaac-aquarius_l3_sss_raincorrected_cap_7day_v4.yaml
identifier: nasa-podaac-aquarius_l3_sss_raincorrected_cap_7day_v4
instrument_measurements:
  - dataset_identifier: nasa-podaac-aquarius_l3_sss_raincorrected_cap_7day_v4
    display_name: sac-d-aquarius/aquarius-l-band-radiometer/nasa-podaac-aquarius_l3_sss_raincorrected_cap_7day_v4
    instrument_identifier: aquarius-l-band-radiometer
    platform_identifier: sac-d-aquarius
    type: instrument_measurement
  - dataset_identifier: nasa-podaac-aquarius_l3_sss_raincorrected_cap_7day_v4
    display_name: sac-d-aquarius/aquarius-l-band-scatterometer/nasa-podaac-aquarius_l3_sss_raincorrected_cap_7day_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 CAP Level 3 Sea Surface Salinity Rain Corrected Standard Mapped Image 7-Day Data V4.0
native_id: AQUARIUS_L3_SSS_RAINCORRECTED_CAP_7DAY_V4
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: 2015-09-24T00:33:47
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_sss_raincorrected_cap_7day_v4
url: http://podaac.jpl.nasa.gov/dataset/AQUARIUS_L3_SSS_RAINCORRECTED_CAP_7DAY_V4
variables: ~
version: ~
vertical_extent: ~