MERRA2_CNN_HAQAST bias corrected global hourly surface total PM2.5 mass concentration, V1 (MERRA2_CNN_HAQAST_PM25) at GES DISC

Description

This product provides MERRA-2 bias-corrected global hourly surface total PM2.5 mass concentration with the same horizontal spatial resolution as MERRA-2, covering a temporal range from 2000 to 2024. It is derived using a machine learning (ML) approach with a convolutional neural network (CNN) method and is specifically developed for the NASA Health and Air Quality Applied Sciences Team (HAQAST). The dataset consists of two parameters: MERRA2_CNN_Surface_PM25 and QFLAG. MERRA2_CNN_Surface_PM25, a 3-dimensional variable (time, latitude, longitude), represents the surface PM2.5 concentrations in µg/m³. QFLAG denotes the quality of data at each grid point, where 4 indicates the highest quality and 1 indicates the lowest quality. It is recommended to use QFLAG values of 3 and 4 for quantitative analysis.

Resources

Name Format Description Link
34 MERRA2_CNN_HAQAST_PM25_1.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/MERRA2_CNN_HAQAST_PM25_1.png
21 MERRA2_CNN_HAQAST_PM25_1.html https://disc.gsfc.nasa.gov/datacollection/MERRA2_CNN_HAQAST_PM25_1.html
5 https://acdisc.gesdisc.eosdis.nasa.gov/data/HAQAST/MERRA2_CNN_HAQAST_PM25.1
5 https://search.earthdata.nasa.gov/search?q=MERRA2_CNN_HAQAST_PM25
5 https://github.com/Alqamah-Sayeed/MERRA2-ML-PM2.5/
5 https://disc.gsfc.nasa.gov/information/howto
21 contents.html https://acdisc.gesdisc.eosdis.nasa.gov/opendap/HAQAST/MERRA2_CNN_HAQAST_PM25.1/contents.html
21 catalog.html https://acdisc.gesdisc.eosdis.nasa.gov/thredds/catalog/HAQAST_aggregation/catalog.html
5 https://giovanni.gsfc.nasa.gov/giovanni/#dataKeyword=MERRA2_CNN_HAQAST_PM25
5 https://docserver.gesdisc.eosdis.nasa.gov%2Fpublic%2Fproject%2FImages%2FMERRA2_CNN_HAQAST_PM25_1.png
5 https://acdisc.gesdisc.eosdis.nasa.gov%2Fdata%2FHAQAST%2FMERRA2_CNN_HAQAST_PM25.1%2Fdoc%2FREADME_MERRA2_CNN_HAQAST_PM25_V1.pdf
5 https://disc.gsfc.nasa.gov%2Fdatacollection%2FMERRA2_CNN_HAQAST_PM25_1.html
5 https://acdisc.gesdisc.eosdis.nasa.gov%2Fdata%2FHAQAST%2FMERRA2_CNN_HAQAST_PM25.1
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DMERRA2_CNN_HAQAST_PM25
5 https://github.com%2FAlqamah-Sayeed%2FMERRA2-ML-PM2.5%2F
5 https://disc.gsfc.nasa.gov%2Finformation%2Fhowto
5 https://acdisc.gesdisc.eosdis.nasa.gov%2Fopendap%2FHAQAST%2FMERRA2_CNN_HAQAST_PM25.1%2Fcontents.html
5 https://acdisc.gesdisc.eosdis.nasa.gov%2Fthredds%2Fcatalog%2FHAQAST_aggregation%2Fcatalog.html
5 https://giovanni.gsfc.nasa.gov%2Fgiovanni%2F%23dataKeyword%3DMERRA2_CNN_HAQAST_PM25
33 README_MERRA2_CNN_HAQAST_PM25_V1.pdf https://acdisc.gesdisc.eosdis.nasa.gov/data/HAQAST/MERRA2_CNN_HAQAST_PM25.1/doc/README_MERRA2_CNN_HAQAST_PM25_V1.pdf
34 M2TMNXLFO_5.12.4.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/M2TMNXLFO_5.12.4.png
5 https://disc.gsfc.nasa.gov/information/howto?tags=MERRA
21 M2TMNXLFO_5.12.4.html https://disc.gsfc.nasa.gov/datacollection/M2TMNXLFO_5.12.4.html
5 https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_MONTHLY/M2TMNXLFO.5.12.4/
5 https://giovanni.gsfc.nasa.gov/giovanni/#dataKeyword=M2TMNXLFO
5 https://search.earthdata.nasa.gov/search?q=M2TMNXLFO
5 M2TMNXLFO.info https://goldsmr4.gesdisc.eosdis.nasa.gov/dods/M2TMNXLFO.info
21 contents.html https://goldsmr4.gesdisc.eosdis.nasa.gov/opendap/MERRA2_MONTHLY/M2TMNXLFO.5.12.4/contents.html
5 https://goldsmr4.gesdisc.eosdis.nasa.gov/thredds/catalog/MERRA2_MONTHLY_aggregation/catalog.html?dataset=merra2_monthly_aggregation%2FM2TMNXLFO.5.12.4_Aggregation.ncml
5 https://gmao.gsfc.nasa.gov/gmao-products/merra-2/documentation_merra-2/
33 Bosilovich785.pdf https://gmao.gsfc.nasa.gov/media/publications/zbly36ziNFDFbmYmvhQeVqPhUo/Bosilovich785.pdf
33 MERRA2.README.pdf https://goldsmr4.gesdisc.eosdis.nasa.gov/data/MERRA2_MONTHLY/M2TMNXLFO.5.12.4/doc/MERRA2.README.pdf
5 https://disc.gsfc.nasa.gov/information/mission-project?title=MERRA-2
5 https://disc.gsfc.nasa.gov/information/documents?title=Records%2520of%2520MERRA-2%2520Data%2520Reprocessing%2520and%2520Service%2520Changes
5 https://disc.gsfc.nasa.gov/information/faqs?keywords=MERRA-2&page=1
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C1276812855-GES_DISC.iso19115

Tags

  • earth-science-public-health-human-dimensions-environmental-health-factors-particulate-matter-pm
  • earth-science-air-quality-atmosphere
  • earth-science-aerosols-atmosphere-particulate-matter

Topics

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