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Latest News on AOD1B
April 25th, 2024: An issue was found where the AOD1B RL07 ATM component for 2022 was identical to RL06. Files are corrected and updated.
March 12th, 2024: A log-file is introduced to indicate changed and re-uploaded AOD1B files. The files are located on the ftp server in the directory of the respective release. Details are given in the file header.
April 20th, 2023: AOD1B RL07 is available for all years starting in 1975 here
Nov 1st, 2022: AOD1B RL07 available for the years 2002 - 2021 here
Sep 7th, 2022: Publication on AOD1B RL07 at JGR Solid Earth available here.
Information on RL07 on the AOD1B website and the Product Description Document are in development and will be updated gradually.
Sep 2nd, 2022: An issue was found in the contribution of the 3D density upper air anomalies of AOD1B RL07. As a result the years 2002 - 2006 as well as 2009 had to be recalculated. RL07 files downloaded before the 2nd of Sep. 2022 for the affected years need to be replaced.
Jun 8th, 2022: AOD1B RL07 available for the years 2007 - 2014 here
Dec 7th, 2017: AOD1B RL05 is no longer updated
Oct 19th, 2017: Version 6.1 of the product description document is available here
April 7th, 2017: AOD1B RL06 data now publicly available here.
Dec 1st, 2016: We started to routinely calculate AOD1B forecasts for up to 6 days into the future; the latest forecast file is publicly available here. Please note that the AOD1B forecasts are experimental at this stage and might be modified or even discontinued without further notice. In case you are interested in using this data-set regularly, please let Henryk Dobslaw know via e-mail.
Nov 20th, 2016: The most important difference between AOD1B RL05 and RL06 is the treatment of atmospheric tides. In RL06, all tidal signals in atmosphere and ocean are estimated and removed from the AOD1B time-series, and are provided in terms of separate sets of Stokes coefficients. Please refer to Chapters 5 and 6 of the AOD1B Product Description Document Version 6.0 for further details.
Nov 20th, 2016: AOD1B RL05 is still processed with a typical latency of 4-7 days. The calculation of AOD1B RL05 will be continued as long as RL05 Level-2 products are generated by the SDS.
Nov 20th, 2016: AOD1B RL06 is now routinely updated every day, products for the previous day are usually available at ISDC at around 10:00 UTC. The products are currently accessable for members of the GRACE Science Data System only.