Skip to main content
U.S. flag

An official website of the United States government

Aqua MODIS Level-3 Global Binned 4µm Day/Night Sea Surface Temperture (SST4) - Near Real-time (NRT) Data, version R2019.0

Published by NASA/GSFC/SED/ESD/GCDC/OB.DAAC;OBPG | National Aeronautics and Space Administration | Catalog Last Checked: June 25, 2026 at 01:38 PM | Dataset Last Updated: June 23, 2026
The Ocean Biology DAAC produces near real-time (NRT) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Near real-time products provide a snapshot of the data during a short time period within a single orbit. SST4 provides sea surface temperature retrieved from the mid-wave IR bands near 4 µm (∼3.7–4.1 µm). These channels are typically used at night (to avoid solar contamination) and can offer reduced sensitivity to atmospheric water vapor compared with long-wave (11/12 µm) split-window SST, making SST4 a valuable complement in humid or tropical conditions. Geophysical variables in this suite include: - qual_sst4 — Quality levels for 4 µm Sea Surface Temperature (integer quality flag) – “qual_sst4” is used to output quality for SST4. - sst4 — 4 µm Sea Surface Temperature (°C) – skin SST product from short-wave IR band

Resources

9 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "Earthdata Forum",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:earthdata-support@nasa.gov"
}
description The Ocean Biology DAAC produces near real-time (NRT) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Near real-time products provide a snapshot of the data during a short time period within a single orbit. SST4 provides sea surface temperature retrieved from the mid-wave IR bands near 4 µm (∼3.7–4.1 µm). These channels are typically used at night (to avoid solar contamination) and can offer reduced sensitivity to atmospheric water vapor compared with long-wave (11/12 µm) split-window SST, making SST4 a valuable complement in humid or tropical conditions. Geophysical variables in this suite include: - qual_sst4 — Quality levels for 4 µm Sea Surface Temperature (integer quality flag) – “qual_sst4” is used to output quality for SST4. - sst4 — 4 µm Sea Surface Temperature (°C) – skin SST product from short-wave IR band
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Original Metadata",
    "format": "ISO",
    "mediaType": "text/xml",
    "conformsTo": "http://www.isotc211.org/2005/gmi",
    "description": "The metadata's original source.",
    "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C1641945731-OB_DAAC.iso19115"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://nasa.github.io/oceandata-notebooks/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://oceancolor.gsfc.nasa.gov/data/reprocessing/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://oceancolor.gsfc.nasa.gov/files/atbd/legacy/atbd-obdaac-short-wave-sea-surface-temperature.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://oceancolor.gsfc.nasa.gov/files/obdaac-ancillary-data-sources.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://oceandata.sci.gsfc.nasa.gov/directdataaccess/Level-3%20Binned/Aqua-MODIS/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C1641945731-OB_DAAC"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://www.earthdata.nasa.gov/data/instruments/MODIS"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://www.earthdata.nasa.gov/data/platforms/space-based-platforms/Aqua"
  }
]
identifier /SDE/CMR_API/|C1641945731-OB_DAAC
keyword 
[
  "earth-science-ocean-temperature-oceans-sea-surface-temperature"
]
license https://www.usa.gov/government-works
modified 2026-06-23
programCode 
[
  "026:000"
]
publisher 
{
  "name": "NASA/GSFC/SED/ESD/GCDC/OB.DAAC;OBPG",
  "@type": "org:Organization"
}
spatial 
"["CARTESIAN", [{"SouthBoundingCoordinate": -90, "WestBoundingCoordinate": -180, "EastBoundingCoordinate": 180, "NorthBoundingCoordinate": 90}]]"
temporal 2002-07-04/2026-06-15
theme 
[
  "Earth Science"
]
title Aqua MODIS Level-3 Global Binned 4µm Day/Night Sea Surface Temperture (SST4) - Near Real-time (NRT) Data, version R2019.0

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov