MERRA-2 tavgU_2d_adg_Nx: 2d,diurnal,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics (extended) 0.625 x 0.5 degree V5.12.4 (M2TUNXADG) at GES DISC

Description

M2TUNXADG (or tavgU_2d_adg_Nx) is a time-averaged 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 aerosol diagnostics (extended), such as dry and wet deposition of each aerosol component, dust emission and sedimentation for each sized bin, and organic carbon convective scavenging. This data collection is the monthly mean of data fields for each hour and is time-stamped with the central time of an hour starting from 00:30 UTC, e.g.: 00:30, 01:30, … , 23:30 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).

Resources

Name Format Description Link
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/M2TUNXADG.info
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/M2TUNXADG_5.12.4.html
34 M2TUNXADG variable https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2TUNXADG_5.12.4.png
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=M2TUNXADG
21 Access the data via the OPeNDAP protocol. https://goldsmr4.gesdisc.eosdis.nasa.gov/opendap/MERRA2_DIURNAL/M2TUNXADG.5.12.4/contents.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 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 The GMAO MERRA-2 documentation and FAQs https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/docs/
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_DIURNAL/M2TUNXADG.5.12.4/
33 README Document https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_DIURNAL/M2TUNXADG.5.12.4/doc/MERRA2.README.pdf
33 MERRA-2 File Specification Document https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FYZJJXZTFCX6B
21 FAQs about MERRA-2 data access https://disc.gsfc.nasa.gov/information/faqs?keywords=MERRA-2&page=1
21 Time aggregated THREDDS Data Server (TDS) https://goldsmr4.gesdisc.eosdis.nasa.gov/thredds/catalog/MERRA2_DIURNAL_aggregation/catalog.html?dataset=merra2_diurnal_aggregation%2FM2TUNXADG.5.12.4_Aggregation.ncml

Tags

  • tectonics
  • aerosols
  • atmosphere
  • solid-earth
  • atmospheric-chemistry
  • air-quality
  • earth-science

Topics

Categories