MERRA-2 instU_2d_asm_Nx: 2d,diurnal,Instantaneous,Single-Level,Assimilation,Single-Level Diagnostics 0.625 x 0.5 degree V5.12.4 (M2IUNXASM) at GES DISC

The Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2) is a NASA atmospheric reanalysis for the satellite era using the Goddard Earth Observing System Model, Version 5 (GEOS-5) with its Atmospheric Data Assimilation System (ADAS), version 5.12.4. The MERRA project focuses on historical climate analyses for a broad range of weather and climate time scales and places the NASA EOS suite of observations in a climate context. 

MERRA-2 was initiated as an intermediate project between the aging MERRA data and the next generation of Earth system analysis envisioned for the future coupled reanalysis. Without a substantial investment to update MERRA's data assimilation routines, the system lacked the capability to analyze the latest observations. In addition, numerous advances to the GEOS5 system had been implemented since freezing the MERRA system in 2008. Therefore, a new full reanalysis integration was undertaken. MERRA-2 covers the period 1980-present, continuing as an ongoing climate analysis as resources allow.

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MERRA-2 Science Data and Data Processing Questions

Do you have a question about MERRA/MERRA-2? Take a look at the File Specification Document (https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf) and if that doesn't answer your question, users can contact staff with questions on the data, data processing and science. Send questions to merra-questions@lists.nasa.gov.

Data and Resources

Additional Info

Field Value
Maintainer DANA OSTRENGA
Last Updated August 27, 2022, 00:42 (CDT)
Created August 27, 2022, 00:42 (CDT)
Identifier C1276812841-GES_DISC
Issued 2007-06-14
Modified 2019-12-13
Theme {MERRA-2,geospatial}
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
landingPage https://doi.org/10.5067/BOJSTZAO2L8R
metadata_type geospatial
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
references {https://doi.org/NASA/TM%E2%80%932015-104606/Vol.%2043,https://doi.org/10.1177/1094342005056120}
resource-type Dataset
source_datajson_identifier true
source_hash 13aa222a1e0f253b8dbd851d6f3bef18ab187abe
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 1980-01-01T00:00:00Z/2019-12-12T00:00:00Z