As of February 25th, 2023, C6 Forward processing of Terra and Aqua MODIS Land data products has been discontinued, due to calibration issues that were discovered after the completion of the C6 reprocessing. The Collection 6.1 (C61) corrects these calibration issues and has a number of product specific improvements and enhancements that are listed in the C61 change document here. Given the improved performance and calibration of C61, users are requested to switch to C61 for all of their MODIS land data needs. NSIDC will retain the C6 historical land data products for a further period of 6 months, following this decommissioning of the C6 forward processing, and will decommission all C6 land data products after the expiry of this 6-month retention period.
"Stage for Delivery" orders in NASA's Earthdata Search will be disabled between Tuesday, May 30, 6 pm (US Mountain Time) and Thursday, June 1, 7 am (US Mountain Time) for planned system maintenance. During this period, users will not be able to request data using this access method. All other download methods will remain available (except during the NSIDC DAAC scheduled downtime).
On Wednesday, May 31st from 7:30 a.m. to 10:30 a.m. (US Mountain Time), the following data collections may not be available due to planned system maintenance: ASO, AMSR Unified, AMSR-E, Aquarius, High Mountain Asia, IceBridge, ICESat/GLAS, ICESat-2, LVIS, MEaSUREs, MODIS, Nimbus, SMAP, SnowEx, SSM/I-SSMIS and VIIRS.
The following table lists MODIS snow and sea ice data sets available from the NSIDC DAAC. Note: All MODIS snow and sea ice data sets provide global coverage. Temporal coverage depends on the satellite.
