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MERRA-2 tavgU_2d_glc_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Land Ice Surface Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXGLC) at GES DISC

Metadata Updated: March 14, 2024

M2TUNXGLC (or tavgU_2d_glc_Nx) is a 2-dimensional monthly diurnal means data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2). This collection consists of assimilated land ice surface diagnostics at the single levels, such as fractional area of glaciated surface snow cover, snow mass over glaciated surface, snow depth over glaciated surface, and total snow mass residual due to densification. This data collection is the monthly mean of data fields for each 3-hour and time-stamped at the central time starting from 01:30 UTC, e.g.: 01:30, 04:30, … , 22:30 UTC.

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 November 12, 2020
Metadata Updated Date March 14, 2024

Metadata Source

Harvested from NASA Data.json

Graphic Preview

M2TUNXGLC variable

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date March 14, 2024
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C1276812873-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. M2TUNXGLC. Version 5.12.4. MERRA-2 tavgU_2d_glc_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Land Ice Surface Diagnostics 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/10.5067/7VUPQC736SWX. https://disc.gsfc.nasa.gov/datacollection/M2TUNXGLC_5.12.4.html. Digital Science Data.
Creator Global Modeling and Assimilation Office (GMAO)
Data Presentation Form Digital Science Data
Graphic Preview Description M2TUNXGLC variable
Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2TUNXGLC_5.12.4.png
Harvest Object Id 9acec797-9489-43df-be8b-4a19df4011f6
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/7VUPQC736SWX
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 M2TUNXGLC
Source Datajson Identifier True
Source Hash 7b12822a72bb7ed456d35eb6093d9edd5b0fd0ca885f5710467617315e823c07
Source Schema Version 1.1
Spatial
Temporal 1980-01-01T00:00:00Z/2022-01-17T00:00:00Z

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