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MERRA-2 tavg3_3d_asm_Nv: 3d,3-Hourly,Time-Averaged,Model-Level,Assimilation,Assimilated Meteorological Fields 0.625 x 0.5 degree V5.12.4 (M2T3NVASM) at GES DISC

Metadata Updated: March 15, 2024

M2T3NVASM (or tavg3_3d_asm_Nv) is a 3-dimensional 3-hourly time averaged data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2). This collection consists of assimilations of meteorological parameters at 72 model layers, such as air temperature, wind components, vertical pressure velocity, water vapor, and layer height. The data field is available every three hour starting from 01:30 UTC, e.g.: 01:30, 04:30, … , 22:30 UTC. Section 4.2 of the MERRA-2 File Specification document provides pressure values nominal for a 1000 hPa surface pressure and refers to the top edge of the layer. The lev=1 is for the top layer, and lev=72 is for the bottom (or surface) model layer.

MERRA-2 is the latest version of global atmospheric reanalysis for the satellite era produced by NASA Global Modeling and Assimilation Office (GMAO) using the Goddard Earth Observing System Model (GEOS) version 5.12.4. The dataset covers the period of 1980-present with the latency of ~3 weeks after the end of a month.

Data Reprocessing: Please check “Records of MERRA-2 Data Reprocessing and Service Changes” linked from the “Documentation” tab on this page. Note that a reprocessed data filename is different from the original file.

MERRA-2 Mailing List: Sign up to receive information on reprocessing of data, changing of tools and services, as well as data announcements from GMAO. Contact the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov) to be added to the list.

Questions: If you have a question, please read "MERRA-2 File Specification Document", “MERRA-2 Data Access – Quick Start Guide”, and FAQs linked from the ”Documentation” tab on this page. If that does not answer your question, you may email the question on data access to the GES DISC Help Desk (gsfc-dl-help-disc@mail.nasa.gov), or the question on science to the MERRA-2 science team (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/10.1175/JCLI-D-16-0758.1
https://doi.org/10.5194/gmd-8-1339-2015
https://doi.org/10.1175/JCLI-D-16-0609.1
https://doi.org/10.1175/JCLI-D-16-0613.1
https://doi.org/10.1175/JCLI-D-16-0570.1
https://doi.org/10.1175/JCLI-D-16-0720.1
https://doi.org/NASA/TM%E2%80%932015-104606/Vol.%2043
https://doi.org/10.1177/1094342005056120

Dates

Metadata Created Date March 15, 2024
Metadata Updated Date March 15, 2024

Metadata Source

Harvested from NASA Data.json

Graphic Preview

M2T3NVASM variable

Additional Metadata

Resource Type Dataset
Metadata Created Date March 15, 2024
Metadata Updated Date March 15, 2024
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C1276812925-GES_DISC
Data First Published 2007-06-14
Language en-US
Data Last Modified 2015-07-07
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
Citation Global Modeling and Assimilation Office (GMAO). 2015-06-30. M2T3NVASM. Version 5.12.4. MERRA-2 tavg3_3d_asm_Nv: 3d,3-Hourly,Time-Averaged,Model-Level,Assimilation,Assimilated Meteorological Fields V5.12.4. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/SUOQESM06LPK. https://disc.gsfc.nasa.gov/datacollection/M2T3NVASM_5.12.4.html. Digital Science Data.
Creator Global Modeling and Assimilation Office (GMAO)
Data Presentation Form Digital Science Data
Graphic Preview Description M2T3NVASM variable
Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2T3NVASM_5.12.4.png
Harvest Object Id 935f7f89-f182-47aa-b4dd-110ff2adc199
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/SUOQESM06LPK
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Related Documents https://doi.org/10.1175/JCLI-D-16-0758.1, https://doi.org/10.5194/gmd-8-1339-2015, https://doi.org/10.1175/JCLI-D-16-0609.1, https://doi.org/10.1175/JCLI-D-16-0613.1, https://doi.org/10.1175/JCLI-D-16-0570.1, https://doi.org/10.1175/JCLI-D-16-0720.1, https://doi.org/NASA/TM%E2%80%932015-104606/Vol.%2043, https://doi.org/10.1177/1094342005056120
Release Place Greenbelt, MD, USA
Series Name M2T3NVASM
Source Datajson Identifier True
Source Hash 9f3d873f3eb43478601582bc56ec351dd1def068ec0d2d31f2c810464b36550e
Source Schema Version 1.1
Spatial
Temporal 1980-01-01T00:00:00Z/2022-01-17T00:00:00Z

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