MERRA-2 statM_2d_pct_Nx: 2d, Single-Level, Monthly Percentiles based on 1991-2020 V2 (M2SMNXPCT) at GES DISC

Description

M2SMNXPCT (or statM_2d_pct_Nx) is a 2-dimensional monthly data collection for percentile statistics derived from monthly Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2) datasets. V2 of this percentile data collection is computed based on the 1991-2020 climatology, covering the time period from January 1980 to present. In contrast, V1, the original version, is computed based on an earlier 30-year climatology (1981-2010). This collection consists of percentiles used to identify or characterize extreme weather events associated with temperature (maximum, mean, and minimum 2-m air temperature), as well as with precipitation (total precipitation). MERRA-2 is the latest version of global atmospheric reanalysis for the satellite era produced by the 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 a latency of ~3 weeks after the end of the previous 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 filename. MERRA-2 Mailing List: Sign up to receive information on reprocessing of data, changes to 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 the "MERRA-2 File Specification Document'', “MERRA-2 Data Access – Quick Start Guide”, and FAQs linked from the ”Documentation” tab on this page for more information. If these documents do 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 M2SMNXPCT sample image: Percentile for total precipitation (PRECTOT), Jan 1980. https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2SMNXPCT_2.png
33 File Specification Document https://gmao.gsfc.nasa.gov/pubs/docs/Collow1437.pdf
21 Access the data via HTTPS. https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_CLIM/M2SMNXPCT.2/
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=M2SMNXPCT_2
21 Access the data via the OPeNDAP protocol. https://goldsmr4.gesdisc.eosdis.nasa.gov/opendap/MERRA2_CLIM/M2SMNXPCT.2/contents.html
21 The NASA GMAO MERRA-2 Data Documentation and FAQs https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/
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 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FFM4HEB84DL8C
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/M2SMNXPCT_2.html
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 Documents with exmaple on how to read and plot MERRA-2 data. https://disc.gsfc.nasa.gov/information/howto?tags=MERRA
33 RREADME Document https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_CLIM/M2TCNPLTM.2/doc/README_MERRA2_CLIMSTAT_V2.pdf
21 FAQs about MERRA-2 data access https://disc.gsfc.nasa.gov/information/faqs?keywords=MERRA-2&page=1

Tags

  • precipitation
  • climate-indicators
  • atmosphere
  • atmospheric-temperature
  • atmospheric-ocean-indicators
  • earth-science

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