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MERRA-2 inst3_2d_gas_Nx: 2d,3-Hourly,Instantaneous,Single-Level,Assimilation,Aerosol Optical Depth Analysis 0.625 x 0.5 degree V5.12.4 (M2I3NXGAS) at GES DISC

Metadata Updated: November 12, 2020

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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Sign up for the MERRA-2 listserv to receive announcements on the latest data information, tools and services that become available, data announcements from GMAO and more! Contact the GES DISC User Services (gsfc-help-disc@lists.nasa.gov) to be added to the list.

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.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

References

https://doi.org/NASA/TM%E2%80%932015-104606/Vol.%2043
https://doi.org/10.1177/1094342005056120

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C1276812759-GES_DISC
Data First Published 2007-06-14
Data Last Modified 2019-12-13
Category MERRA-2, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 1081b2af-8bf8-4666-87be-8b4f6b77ede2
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/HNGA0EWW0R09
Metadata Type geospatial
Program Code 026:001
Related Documents https://doi.org/NASA/TM%E2%80%932015-104606/Vol.%2043, https://doi.org/10.1177/1094342005056120
Source Datajson Identifier True
Source Hash c5629611daa488d3a3d7be6ea565da9e8afc9965
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

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