National Oceanic and Atmospheric Administration
https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.html

National Oceanic and Atmospheric Administration
https://psl.noaa.gov/repository/facts/

National Oceanic and Atmospheric Administration
https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C00332