Thielke, Linda; Huntemann, Marcus; Spreen, Gunnar (2022): Lead classification maps from helicopter-borne surface temperatures with 5 m resolution during the MOSAiC expedition [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.951562, In: Thielke, L et al. (2022): Lead classification maps from helicopter-borne surface temperatures during the MOSAiC expedition [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.951569
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Abstract:
Leads (open water and thin ice) were classified in helicopter-borne thermal infrared observations. Lead classification maps, gridded in 1 m resolution, are provided for 35 flights between 02.10.2019 and 23.04.2020 during the MOSAiC expedition in the Arctic ocean. There is one file for every flight, either on a local (MOSAiC central observatory) or regional scale (MOSAiC distributed network). The flights can be identified by two campaign specific IDs (the event-related Device Operation label or Flight ID). The lead classification maps are derived from the surface temperature maps (doi:10.1594/PANGAEA.941017) as described in Thielke et al (in preparation). The 5 m resolution data (based on block averaged surface temperature) are included to provide data with a smaller file size so they are easier accessible and available for the comparison of the effect of different spatial resolutions. The binary lead classification is performed with a temperature threshold. In this data set, in addition to the lead classification maps, also the surface temperature and time-fixed surface temperature maps are included (the same data as included in the temperature maps: doi:10.1594/PANGAEA.941017). This time-fixed surface temperature is necessary to perform the classification and included for direct comparison to the lead classification result. All data are georeferenced, also as relative coordinates to the position of RV Polarstern which allows a Polarstern centered, Lagrangian view on the lead development.
Related to:
Thielke, Linda; Huntemann, Marcus; Hendricks, Stefan; Jutila, Arttu; Ricker, Robert; Spreen, Gunnar (2022): Helicopter-borne thermal infrared sea ice surface temperature maps with 5 m resolution during the MOSAiC expedition, NetCDF format, version 3. PANGAEA, https://doi.org/10.1594/PANGAEA.950675
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0866A: MOSAiC 1 - IceSense: Fernerkundung der saisonalen Entwicklung klimarelevanter Meereis-Eigenschaften; Leitantrag; Vorhaben: Saisonale Veränderungen von Eisdicken und Schmelztümpeln
German Research Foundation (DFG), grant/award no. 221211316: GRK/IRTG 1904: ArcTrain - Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 86.790030 * Median Longitude: 97.922910 * South-bound Latitude: 84.077417 * West-bound Longitude: 15.156225 * North-bound Latitude: 88.411209 * East-bound Longitude: 135.184638
Date/Time Start: 2019-10-02T00:00:00 * Date/Time End: 2020-04-23T00:00:00
Minimum Elevation: -4425.6 m * Maximum Elevation: -3767.0 m
Event(s):
PS122/1_2-57 (20191002_01) * Latitude Start: 85.167810 * Longitude Start: 134.462732 * Latitude End: 85.132120 * Longitude End: 135.184638 * Date/Time Start: 2019-10-02T05:50:01 * Date/Time End: 2019-10-02T06:49:11 * Elevation: -4285.4 m * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Helicopter (HELI) * Comment: first laser scanner and IR camera survey over the MOSAiC floe; IR camera measurements from 05:56:28 to 06:46:04
PS122/1_2-167 (20191020_01) * Latitude Start: 84.946354 * Longitude Start: 132.755420 * Latitude End: 84.956537 * Longitude End: 132.584526 * Date/Time Start: 2019-10-20T01:05:02 * Date/Time End: 2019-10-20T02:11:21 * Elevation: -4301.5 m * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Helicopter (HELI) * Comment: Flight ID 20191020_01 Flight over the floe
PS122/1_5-9 (20191029_01) * Latitude Start: 85.637577 * Longitude Start: 125.625565 * Latitude End: 85.615876 * Longitude End: 125.128773 * Date/Time Start: 2019-10-29T01:54:55 * Date/Time End: 2019-10-29T03:23:27 * Elevation: -4384.4 m * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Helicopter (HELI) * Comment: IR camera data from 01:59:40 (still on heli deck) to 03:22:36; flight to the three L sites and small grid on starboard side of Polarstern: Laser scanner, IR camera, KT19, GoPros
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Thielke, Linda | |||
| 2 | Flight number | Flight | Thielke, Linda | |||
| 3 | DATE/TIME | Date/Time | Thielke, Linda | Geocode | ||
| 4 | Comment | Comment | Thielke, Linda | Flight Type | ||
| 5 | Binary Object | Binary | Thielke, Linda | |||
| 6 | Binary Object (File Size) | Binary (Size) | Bytes | Thielke, Linda |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
105 data points