Latest Data being reprocessed

Earlier this year, a compiler was upgraded on our supercomputing platform. This upgrade has apparently introduced a problem into the post processing program that compresses and prepares data files for transfer to the DISC where the data are publicly accessible. So that: all MERRA data after data date June 1, 2010 will be replaced and is currently no longer accessible at the DISC. This includes Monthly means from May 2010 on, but not the May 2010 data.

For those that may have downloaded data for the period June 1 - August 31, 2010, consider very carefully whether to continue using the data. So far, the only variables we have confirmed are corrupted are the roughness lengths for momentum and heat. We have no reason to think that other variables are not affected, hence the recall. The GMAO does not recommend the use of this data if you downloaded it before this recall.

The MERRA system and archive data are not affected by this issue. The system continues to run in near real time. Once the post processing code is fixed, the archive data will be reprocessed and posted to the DISC.

Late Oct 29 Update: The code has been fixed and tested. Corrected files are being reprocessed and sent to the DISC.