Daily polynya area and ice production in circumpolar polynya regions in the Arctic for 2002/2003 to 2014/2015 ...
High-resolution MODIS thermal infrared satellite data are used to infer spatial and temporal characteristics of 17 prominent coastal polynya regions over the entire Arctic basin. Thin-ice thickness distributions (< 20 cm) are calculated from MODIS ice-surface temperatures, combined with ECMWF ERA...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
PANGAEA
2016
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.869294 https://doi.pangaea.de/10.1594/PANGAEA.869294 |
| Summary: | High-resolution MODIS thermal infrared satellite data are used to infer spatial and temporal characteristics of 17 prominent coastal polynya regions over the entire Arctic basin. Thin-ice thickness distributions (< 20 cm) are calculated from MODIS ice-surface temperatures, combined with ECMWF ERA-Interim atmospheric reanalysis data in an energy balance model for 13 winter-seasons (2002/2003 to 2014/2015; November to March). From all available MODIS swath-data, (quasi-) daily thin-ice thickness composites are computed in order to derive quantities such as polynya area and total thermodynamic (i.e., potential) ice production. A gap-filling approach is applied to account for cloud and data gaps in the MODIS composites. All polynya regions combined cover an average thin-ice area of 226.6 ± 36.1 x10³ km² in winter. This allows for an average total wintertime accumulated ice production of about 1811 ± 293 km³, whereby the Kara Sea region, the North Water polynya (both 15%), polynyas at the western side of ... : Supplement to: Preußer, Andreas; Heinemann, Günther; Willmes, Sascha; Paul, Stephan (2016): Circumpolar polynya regions and ice production in the Arctic: Results from MODIS thermal infrared imagery for 2002/2003 to 2014/2015 with a regional focus on the Laptev Sea. The Cryosphere, 10(6), 3021-3042 ... |
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