We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.Read about the Web Unification Project
Description
MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km (MYD29) data set contains 1 km resolution sea ice extent, ice surface temperature, and quality assessment data, plus 5 km resolution geolocation data.
As of August 2023, this data set is retired and no longer available for download. We recommend using <a href="https://nsidc.org/data/myd29/versions/61">MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km, Version 61</a> as an alternative.
Version Description
Sea ice extent and ice surface temperature algorithms and data sets are the same as Version 5. However, revisions and improvements for Version 6 to algorithm inputs have improved sea ice outputs as follows:
Revised calibration of MYD02 thermal bands 31 and 32 decreased calculated brightness temperatures by about -0.01 K and improved accuracy for very cold scenes;
The Version 6 land/water mask in the MYD03 geolocation product increased the accuracy of water body and coastline maps;
Revisions to the MYD35_L2 cloud mask algorithm have increased the accuracy of cloud detection.
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
Copy Citation
Citation Copied
Hall, D. K., & Riggs, G. A. (2015). MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km, Version 6 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD29.006 Date Accessed: 2026-07-29
Hall, D. K., & Riggs, G. A. (2015). MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km, Version 6 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD29.006 Date Accessed: 2026-07-29
Hall, Dorothy K., and George A. Riggs. “MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km, Version 6.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2015, https://doi.org/10.5067/MODIS/MYD29.006. Date Accessed: 2026-07-29