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Imaging · collection · 2026

ACOS GOSAT/TANSO-FTS Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files v11.0

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/uay6vjyts8od

Version 11.0 is the current version of the Atmospheric Carbon Observations from Space (ACOS) retrieval product as applied to the Greenhouse Gases Observing Satellite (GOSAT) as part of close partnership between The Orbiting Carbon Observatories (OCO) and GOSAT.

Description

Older versions will no longer be available and are superseded by Version 11.0. The ACOS Lite files contain bias-corrected column-integrated dry air mole fraction of carbon dioxide (XCO2) along with other select fields aggregated as daily .nc4 files with 10.5km x 10.5km spatial resolution.

The last version of this product was ACOS/GOSAT version 9 (Taylor et al., 2020), and covered the time period 2009/04/20-2020/06/30. The v11.0 product uses the latest version of the ACOS algorithm and covers 2009/04/18-2025/03/26, containing XCO2 (units of parts per million [ppm]) for nearly clear-sky soundings with sufficient signal, over both land and ocean. This product uses TANSO-FTS instrument's spectral radiances as produced by JAXA, version v300300 and v300301.

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The GOSAT team at JAXA produces GOSAT TANSO-FTS Level 1B (L1B) data products for internal use and for distribution to collaborative partners, such as ESA and NASA. These calibrated products are augmented by the OCO Project with additional information such as local surface elevation. Thus produced Level 1B products (with calibrated radiances and geolocation) are the input to the ACOS Level 2 production process.

The ACOS version 11.0 product was produced at Colorado State University.

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Catalogue records · 3

Topics

Stated by source
Atmospheric Carbon Dioxide · Greenhouse Gases Observing Satellite · Thermal And Near Infrared Sensor For Carbon Observation
From keywords
Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Inferred from text
Atmospheric sciences 71%
Provenance · 2 source records, 19 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC4106152863-GES_DISC6 d agoJSON v1
NASA Data Portalc2b37e04-f1ab-44db-b85f-81732750d5184 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3701enrichment · NASA CMRtaxonomy-embedding@1.0.0title+keywords+description (71%)
concepts[field].local:field:astronomymapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:chemistrymapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:earth-environmentalmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:ocean-atmosphericmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:physicsmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[instrument].gcmd_instrument:tanso-ftssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-dioxidesource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:gosatsource · NASA CMRconnector:nasa_cmr@1.0.0
created_datesource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · NASA CMRconnector:nasa_cmr@1.0.0
publication_datesource · NASA CMRconnector:nasa_cmr@1.0.0
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
updated_datesource · NASA CMRconnector:nasa_cmr@1.0.0
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0