Water vapor anomaly over the tropical western Pacific in El Niño winters from radiosonde and satellite observations and ERA5 reanalysis data
Minkang Du et al.
ERA5 monthly averaged data on pressure levels from 1979 to present https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-pressure-levels-monthly-means?tab=form
Climate Prediction Center (CPC) Oceanic Nino Index https://catalog.data.gov/dataset/climate-prediction-center-cpcoceanic-nino-index
Interpolated Outgoing Longwave Radiation (OLR) https://downloads.psl.noaa.gov/Datasets/interp_OLR/