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SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SGDR, Version 2.0

Published by NASA/JPL/PODAAC | National Aeronautics and Space Administration | Catalog Last Checked: May 06, 2026 at 07:47 PM | Dataset Last Updated: March 31, 2025
Same as L2_NALT_GDR, using preliminary values for some auxiliary data. Uses Medium-accuracy (preliminary) Orbit Ephemeris (MOE). Available with latency of < 1.5 days. Discrete measurements at nadir for each half orbit, along the ground track. Available in netCDF-4 file format.

Resources

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  • Download this dataset through Earthdata Search

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  • Data Subscriber

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  • View this dataset's data citation policy

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  • Download this dataset through a directory map

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  • View this dataset's user's guide

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  • The dataset's project home page

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  • View documentation related to this dataset

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  • View documentation related to this dataset

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  • View documentation related to this dataset

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  • View documentation related to this dataset

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  • View documentation related to this dataset

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  • Google Scholar search results

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  • Get a related visualization

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "undefined",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:cmr-support@earthdata.nasa.gov"
}
description Same as L2_NALT_GDR, using preliminary values for some auxiliary data. Uses Medium-accuracy (preliminary) Orbit Ephemeris (MOE). Available with latency of < 1.5 days. Discrete measurements at nadir for each half orbit, along the ground track. Available in netCDF-4 file format.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Download this dataset through Earthdata Search",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Browse granule search results in Earthdata Search",
    "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C2628600898-POCLOUD"
  },
  {
    "@type": "dcat:Distribution",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Data Subscriber",
    "downloadURL": "https://github.com/podaac/data-subscriber"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View this dataset's data citation policy",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Data Use and Citation Policy",
    "downloadURL": "https://podaac.jpl.nasa.gov/CitingPODAAC"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Download this dataset through a directory map",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "HTTPS endpoint for data browse and download",
    "downloadURL": "https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2628600898-POCLOUD"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View this dataset's user's guide",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Product Description Document (PDD)",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/swot_mission_docs/pdd/SALP-ST-M-EA-17043-CN_0103_20220411_Rev1.3.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "The dataset's project home page",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "SWOT Mission Page",
    "downloadURL": "https://swot.jpl.nasa.gov"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "SWOT Mission Page",
    "downloadURL": "https://swot.jpl.nasa.gov"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "SWOT Mission Page at AVISO",
    "downloadURL": "https://www.aviso.altimetry.fr/en/missions/current-missions/swot.html"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "SWOT Mission Page at JPL",
    "downloadURL": "https://www.jpl.nasa.gov/missions/surface-water-and-ocean-topography-swot"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "SWOT Mission Page at NASA",
    "downloadURL": "https://www.nasa.gov/swot"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "SWOT Mission Page at PO.DAAC",
    "downloadURL": "https://podaac.jpl.nasa.gov/swot"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Google Scholar search results",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Search results for publications that cite this dataset by its DOI.",
    "downloadURL": "https://scholar.google.com/scholar?q=10.5067%2FSWOT-NALT-IGDR-1.0"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Get a related visualization",
    "format": "JPEG",
    "mediaType": "image/jpeg",
    "description": "Thumbnail",
    "downloadURL": "https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_NALT_IGDR_1.0.jpg"
  }
]
identifier C2799465529-POCLOUD
issued 2022-06-28
keyword 
[
  "earth-science",
  "ocean-waves",
  "oceans",
  "sea-surface-topography"
]
landingPage https://doi.org/10.5067/SWOT-NALT-IGDR-1.0
language 
[
  "en-US"
]
modified 2025-03-31
programCode 
[
  "026:001"
]
publisher 
{
  "name": "NASA/JPL/PODAAC",
  "@type": "org:Organization"
}
spatial -180.0 -77.6 180.0 77.6
temporal 2022-12-16T00:00:00Z/2023-11-27T00:00:00Z
theme 
[
  "SWOT",
  "geospatial"
]
title SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SGDR, Version 2.0

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