---
access_dt: ~
aliases:
  - context: datasetId
    lexicon: podaac
    term: PODAAC-TEOCN-ET005
    url: http://podaac.jpl.nasa.gov/ws/search/dataset?datasetId=PODAAC-TEOCN-ET005
  - context: dataset
    lexicon: podaac
    term: TELLUS_OCEANEOF_TXT_RL05
    url: http://podaac.jpl.nasa.gov/dataset/TELLUS_OCEANEOF_TXT_RL05
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: "The twin satellites of the Gravity Recovery and Climate Experiment (GRACE), launched in March of 2002, are making detailed monthly measurements of Earth's gravity field changes. These observations can detect regional mass changes of Earth's water reservoirs over land, ice and oceans. GRACE measures gravity variations by relating it to the distance variations between the two satellites, which fly in the same orbit, separated by about 240 km at an altitude of ~450 km. The monthly ocean mass grids contain ocean bottom pressure anomalies from GRACE time-variable gravity data relative to a time-mean, but additionally filtered to project onto model-derived Empirical Orthogonal Functions (EOFs). The EOF-filter can improve the comparison of the GRACE-based ocean bottom pressure to sea surface height from altimetry. The bottom pressure anomalies are given in 'equivalent water thickness' (in ASCII format), so can be compared to sea level anomalies due to changes of water mass (reference density is 1027 kg/m^3). The time coverage for the monthly grids are determined by GRACE months. For the list of GRACE month dates visit http://grace.jpl.nasa.gov/data/GraceMonths/ . For information please visit http://grace.jpl.nasa.gov/data/GRACEMONTHLYMASSGRIDSOCEAN/ ."
description_attribution: http://podaac.jpl.nasa.gov/dataset/TELLUS_OCEANEOF_TXT_RL05
display_name: GRACE MONTHLY OCEAN MASS EOF GRIDS ASCII RELEASE 5.0
doi: ~
end_time: ~
files:
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    file: bd/29/aba1f4695c92ec048086cdf860af/TELLUS_OCEANEOF_TXT_RL05.jpg
    href: http://data.globalchange.gov/assets/bd/29/aba1f4695c92ec048086cdf860af/TELLUS_OCEANEOF_TXT_RL05.jpg
    identifier: ebd4e6b6-101c-490d-a2a0-281a5434df94
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    location: ~
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    thumbnail_href: http://data.globalchange.gov/assets/bd/29/aba1f4695c92ec048086cdf860af/.thumb-ebd4e6b6-101c-490d-a2a0-281a5434df94.png
    type: file
    uri: /file/ebd4e6b6-101c-490d-a2a0-281a5434df94
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href: http://52.38.26.42:8080/dataset/nasa-podaac-tellus_oceaneof_txt_rl05.yaml
identifier: nasa-podaac-tellus_oceaneof_txt_rl05
instrument_measurements:
  - dataset_identifier: nasa-podaac-tellus_oceaneof_txt_rl05
    display_name: gravity-recovery-and-climate-experiment/grace-instrument/nasa-podaac-tellus_oceaneof_txt_rl05
    instrument_identifier: grace-instrument
    platform_identifier: gravity-recovery-and-climate-experiment
    type: instrument_measurement
lat_max: 90
lat_min: -90
lon_max: 360
lon_min: 0
name: GRACE MONTHLY OCEAN MASS EOF GRIDS ASCII RELEASE 5.0
native_id: TELLUS_OCEANEOF_TXT_RL05
parents: []
processing_level: ~
publication_year: ~
references: []
release_dt: 2012-03-17T00:26:24
scale: ~
scope: ~
spatial_extent: ~
spatial_ref_sys: ~
spatial_res: ~
start_time: 2002-08-01T00:00:00
temporal_extent: ~
temporal_resolution: ~
type: dataset
uri: /dataset/nasa-podaac-tellus_oceaneof_txt_rl05
url: http://podaac.jpl.nasa.gov/dataset/TELLUS_OCEANEOF_TXT_RL05
variables: ~
version: ~
vertical_extent: ~