NOAA has generated a multi-decadal reanalysis and reforecast data set to accompany the next-generation version of its ensemble prediction system, the Global Ensemble Forecast System, version 12 (GEFSv12). Accompanying the real-time forecasts are “reforecasts” of the weather, that is, retrospective forecasts spanning the period 2000-2019. These reforecasts are not as numerous as the real-time data; they were generated only once per day, from 00 UTC initial conditions, and only 5 members were provided, with the following exception. Once weekly, an 11-member reforecast was generated, and these extend in lead time to +35 days. Browse the bucket at https://noaa-gefs-retrospective.s3.amazonaws.com/index.html.
Re-forecasts do not adhere to an update frequency.
Open Data. There are no restrictions on the use of this data.
See all datasets managed by NOAA.
For any data delivery issues or any questions in general, please contact the NOAA Big Data Program Team at: email@example.com.
aws s3 ls s3://noaa-gefs-retrospective/ --no-sign-request