MERRA-2 tavg3_3d_nav_Ne: 3d,3-Hourly,Time-Averaged, Vertical Coordinates 0.625 x 0.5 degree V5.12.4 (M2T3NENAV) at GES DISC

Description

M2T3NENAV (or tavg3_3d_nav_Ne) 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 vertical coordinates of the 73 model layer edges. The parameters include edge pressure and edge heights. 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=73 is for the bottom (or surface) model layer edge. 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
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=M2T3NENAV
21 Time aggregated THREDDS Data Server (TDS) https://goldsmr5.gesdisc.eosdis.nasa.gov/thredds/catalog/MERRA2_aggregation/M2T3NENAV.5.12.4/catalog.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FN5WAKNS1UYQN
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/M2T3NENAV_5.12.4.html
21 The GrADS Data Server (GDS) is another form of OPeNDAP that provides subsetting and some analysis services across the Internet. https://goldsmr5.gesdisc.eosdis.nasa.gov/dods/M2T3NENAV.info
34 M2T3NENAV variable https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2T3NENAV_5.12.4.png
21 How to read and plot the data. https://disc.gsfc.nasa.gov/information/howto?tags=MERRA
21 The GMAO MERRA-2 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 FAQs about MERRA-2 data access https://disc.gsfc.nasa.gov/information/faqs?keywords=MERRA-2&page=1
21 Access the data via HTTPS. https://goldsmr5.gesdisc.eosdis.nasa.gov/data/MERRA2/M2T3NENAV.5.12.4/
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
33 MERRA-2 File Specification Document https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf
21 Access the data via the OPeNDAP protocol. https://goldsmr5.gesdisc.eosdis.nasa.gov/opendap/MERRA2/M2T3NENAV.5.12.4/contents.html
33 README Document https://goldsmr5.gesdisc.eosdis.nasa.gov/data/MERRA2/M2T3NENAV.5.12.4/doc/MERRA2.README.pdf

Tags

  • altitude
  • atmosphere
  • atmospheric-pressure
  • earth-science

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