MERRA-2 tavgM_2d_flx_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Surface Flux Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXFLX) at GES DISC

Description

M2TMNXFLX (or tavgM_2d_flx_Nx) is a time-averaged 2-dimensional monthly mean data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2). This collection consists of assimilated surface flux diagnostics, such as total precipitation, bias corrected total precipitation, surface air temperature, surface specific humidity, surface wind speed, and evaporation from turbulence. The “surface” in this data collection is the model surface layer. The heights of the model surface layer (HLML) vary with time and location, with the value of ~60 meter above ground. The collection also includes variance of certain parameters. 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).

Resources

Name Format Description Link
34 M2TMNXFLX variable https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2TMNXFLX_5.12.4.png
21 How to read and plot the data. https://disc.gsfc.nasa.gov/information/howto?tags=MERRA
21 Access the data via HTTPS. https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_MONTHLY/M2TMNXFLX.5.12.4/
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=M2TMNXFLX
21 Access the data via the OPeNDAP protocol. https://goldsmr4.gesdisc.eosdis.nasa.gov/opendap/MERRA2_MONTHLY/M2TMNXFLX.5.12.4/contents.html
21 The GMAO MERRA-2 documentation and FAQs https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/
33 README Document https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_MONTHLY/M2TMNXFLX.5.12.4/doc/MERRA2.README.pdf
21 MERRA-2 Data Access – Quick Start Guide https://disc.gsfc.nasa.gov/information/documents?title=MERRA-2+Data+Access+%E2%80%93+Quick+Guide
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2F0JRLVL8YV2Y4
33 MERRA-2 File Specification Document https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf
21 Records of MERRA-2 Data Reprocessing and Service Changes https://disc.gsfc.nasa.gov/information/documents?title=Records+of+MERRA-2+Data+Reprocessing+and+Service+Changes
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/M2TMNXFLX_5.12.4.html
21 The GES-DISC Interactive Online Visualization ANd aNalysis Interface (Giovanni) is a web-based tool that allows users to interactively visualize and analyze data. https://giovanni.gsfc.nasa.gov/giovanni/#dataKeyword=M2TMNXFLX
21 The GrADS Data Server (GDS) is another form of OPeNDAP that provides subsetting and some analysis services across the Internet. https://goldsmr4.gesdisc.eosdis.nasa.gov/dods/M2TMNXFLX.info
21 Time aggregated THREDDS Data Server (TDS) https://goldsmr4.gesdisc.eosdis.nasa.gov/thredds/catalog/MERRA2_MONTHLY_aggregation/catalog.html?dataset=merra2_monthly_aggregation%2FM2TMNXFLX.5.12.4_Aggregation.ncml
21 FAQs about MERRA-2 data access https://disc.gsfc.nasa.gov/information/faqs?keywords=MERRA-2&page=1

Tags

  • atmospheric-radiation
  • topography
  • precipitation
  • snow-ice
  • altitude
  • land-surface
  • ocean-heat-budget
  • atmospheric-water-vapor
  • oceans
  • atmosphere
  • cryosphere
  • atmospheric-temperature
  • terrestrial-hydrosphere
  • ocean-winds
  • atmospheric-winds
  • earth-science
  • sea-ice

Topics

Categories