MERRA-2 inst6_3d_ana_Nv: 3d,6-Hourly,Instantaneous,Model-Level,Analysis,Analyzed Meteorological Fields 0.625 x 0.5 degree V5.12.4 (M2I6NVANA) at GES DISC

Description

M2I6NVANA (or inst6_3d_ana_Nv) is an instantaneous 3-dimensional 6-hourly data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2). This collection consists of analized meteorological fields at 72 model layers, such as temperature, wind components,specific humidity, and layer pressure thickness. The data field is available every six hour starting from 00:00 UTC, e.g.: 00:00, 06:00, … , 18:00 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).

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=M2I6NVANA
33 README Document https://goldsmr5.gesdisc.eosdis.nasa.gov/data/MERRA2/M2I6NVANA.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 Access the data via HTTPS. https://goldsmr5.gesdisc.eosdis.nasa.gov/data/MERRA2/M2I6NVANA.5.12.4/
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/M2I6NVANA.info
21 Time aggregated THREDDS Data Server (TDS) https://goldsmr5.gesdisc.eosdis.nasa.gov/thredds/catalog/MERRA2_aggregation/M2I6NVANA.5.12.4/catalog.html
21 The GMAO MERRA-2 documentation and FAQs https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FIUUF4WB9FT4W
21 Access the data via the OPeNDAP protocol. https://goldsmr5.gesdisc.eosdis.nasa.gov/opendap/MERRA2/M2I6NVANA.5.12.4/contents.html
21 How to read and plot the data. https://disc.gsfc.nasa.gov/information/howto?tags=MERRA
21 FAQs about MERRA-2 data access https://disc.gsfc.nasa.gov/information/faqs?keywords=MERRA-2&page=1
34 M2I6NVANA variable https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2I6NVANA_5.12.4.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/M2I6NVANA_5.12.4.html
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
33 MERRA-2 File Specification Document https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf

Tags

  • altitude
  • atmospheric-water-vapor
  • atmosphere
  • atmospheric-temperature
  • atmospheric-chemistry
  • atmospheric-pressure
  • atmospheric-winds
  • earth-science

Topics

Categories