Global Data Assimilation System (GDAS)
Offline data ordering of Global Data Assimilation System (GDAS) with the HDSS Access System (HAS) requires checking the "Bulk Request" option. While this is not enforced by the site, requests submitted without the bulk option are not supported and will not return data. Bulk datasets requests are large and cannot be subsetted, so start with small requests (one day of data) to ensure you find it usable.
|Product||Grid/Scale||Period of Record||Model Cycle||Output Timestep||Data Access Links|
|GDAS Snow, Ice, SST, Satellite, Ship, Aircraft (GRIB and BUFR)||0.5º by 0.5º||14Jan2015 - Present||4/day: 00, 06, 12, 18UTC||Anl, +00, +03, +06, +09 hours||FTP HTTP HAS|
|GDAS Snow, Ice, SST, Satellite, Ship, Aircraft (GRIB and BUFR)||1º by 1º||01Jan2001 - 14Jan2015||4/day: 00, 06, 12, 18UTC||Anl, +00, +03, +06, +09 hours||FTP HTTP HAS|
Data Usage Notes