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Preußer, Andreas; Ohshima, Kay I; Iwamoto, Katsushi; Willmes, Sascha; Heinemann, Günther (2019): Arctic polynya regions: Daily polynya area and ice production for 2002/2003 to 2017/2018. PANGAEA, https://doi.org/10.1594/PANGAEA.899854, Supplement to: Preußer, A et al. (2019): Retrieval of Wintertime Sea Ice Production in Arctic Polynyas Using Thermal Infrared and Passive Microwave Remote Sensing Data. Journal of Geophysical Research: Oceans, https://doi.org/10.1029/2019JC014976

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Abstract:
A precise knowledge of wintertime sea-ice production in Arctic polynyas is not only required to enhance our understanding of atmosphere - sea-ice - ocean interactions, but also to verify frequently utilized climate and ocean models. In this study, a high-resolution (2km) MODIS thermal infrared satellite data set featuring spatial and temporal characteristics of 17 Arctic polynya regions (see attached overview map) for the winter seasons 2002/2003 to 2017/2018 is directly compared to a similar data set based on AMSR-E passive microwave data (available for 2002/2003 to 2010/2011). The MODIS data set is purely based on a 1D energy balance model, where thin-ice thicknesses (up to 20cm) are directly derived from ice-surface temperature swath data and ERA-Interim atmospheric reanalysis data on a quasi-daily basis. A gap-filling approach is applied to account for cloud and data gaps in the MODIS composites. Estimation of the thin-ice thickness in the AMSR-E data set is based on an empirical approach that utilizes a distinct polarization ratio (PR) - ice thickness relationship.
More detailed information on the retrieval of the data can be found in the referenced publication.
Keyword(s):
AMSR-E; Arctic; MODIS; Polynya; remote sensing; Sea ice
Coverage:
Median Latitude: 76.502941 * Median Longitude: 2.058824 * South-bound Latitude: 70.000000 * West-bound Longitude: -165.000000 * North-bound Latitude: 82.500000 * East-bound Longitude: 160.000000
Date/Time Start: 2002-12-01T00:00:00 * Date/Time End: 2018-03-31T00:00:00
Event(s):
BSH (Beaufort shelf) * Latitude: 70.500000 * Longitude: -145.000000
CAA (Canadian Arctic Archipelago) * Latitude: 74.000000 * Longitude: -102.500000
CBP (Cape Bathurst Polynya) * Latitude: 71.000000 * Longitude: -128.000000
Comment:
Partly funded by Grant-in-Aids for Scientific Research (17H01157) of the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventPreußer, Andreas
2Optional event labelEvent 2Preußer, Andreas
3DATE/TIMEDate/TimePreußer, AndreasGeocode
4Latitude of eventLatitudePreußer, Andreas
5Longitude of eventLongitudePreußer, Andreas
6Area extentAreakm2Preußer, Andreasderived from AMSR-E passive microwave dataDaily polynya area
7Sea ice productionIPkm3/dayPreußer, Andreasderived from AMSR-E passive microwave data
8Area extentAreakm2Preußer, Andreasderived from MODIS remote sensing dataDaily polynya area
9Sea ice productionIPkm3/dayPreußer, Andreasderived from MODIS remote sensing data
Size:
103054 data points

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