Jutila, Arttu; Hendricks, Stefan; Ricker, Robert; von Albedyll, Luisa; Haas, Christian (2024): Airborne sea ice parameters during aircraft flight P6_217_ICEBIRD_2019_1904081301, Version 2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966061, In: Jutila, A et al. (2024): Airborne sea ice parameters during the IceBird Winter 2019 campaign in the Arctic Ocean, Version 2 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.966057
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Abstract:
Airborne multi-instrument measurements of sea ice were made in April 2019 during the winter campaign of the AWI IceBird campaign series. The data consist of five surveys spanning sea-ice covered areas in the Lincoln Sea, Central Arctic Ocean, as well as the Beaufort Sea. For each flight, the geolocated total (ice+snow) thickness data from an airborne electromagnetic (EM) induction sensor are provided with a point spacing of approximately 5-6 meters. Larger gaps in the trajectories arise from high-altitude calibrations of the EM sensor. The data are combined with collocated and simultaneous snow depth measurements from an airborne frequency-modulated continuous-wave ultrawideband radar, snow freeboard measurements from an airborne near-infrared laser scanner, and surface temperature measurements from an airborne infrared radiation pyrometer. Each value represents the average within the approximately 40 m diameter footprint of the EM sensor, thus representing a smoothed representation. These values are then used to derive further sea ice parameters such as sea ice bulk density. The trajectory data contain the full and unfiltered data record with quality flags.
Keyword(s):
Related to:
Jutila, Arttu; Hendricks, Stefan; Ricker, Robert; von Albedyll, Luisa; Krumpen, Thomas; Haas, Christian (2022): Retrieval and parameterisation of sea-ice bulk density from airborne multi-sensor measurements. The Cryosphere, 16(1), 259-275, https://doi.org/10.5194/tc-16-259-2022
Project(s):
Sea Ice Physics @ AWI (AWI_SeaIce)
Coverage:
Median Latitude: 71.204475 * Median Longitude: -126.653452 * South-bound Latitude: 70.613907 * West-bound Longitude: -127.773537 * North-bound Latitude: 71.765068 * East-bound Longitude: -124.400612
Date/Time Start: 2019-04-08T19:07:24 * Date/Time End: 2019-04-08T20:24:09
Event(s):
P6_217_ICEBIRD_2019_1904081301 * Latitude Start: 68.305779 * Longitude Start: -133.493674 * Latitude End: 68.305775 * Longitude End: -133.493625 * Date/Time Start: 2019-04-08T15:19:23 * Date/Time End: 2019-04-08T19:53:22 * Location: Arctic * Campaign: P6_217_ICEBIRD_2019 (PAMARCMIP 2019) * Basis: POLAR 6 * Method/Device: Aircraft (AC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Geocode | |||
| 2 | LATITUDE | Latitude | Geocode | |||
| 3 | LONGITUDE | Longitude | Geocode | |||
| 4 | Sea ice and snow thickness | Sea ice+snow thick | m | |||
| 5 | Sea ice and snow thickness, uncertainty | Sea ice+snow thick unc | m | |||
| 6 | Snow thickness | Snow thick | m | |||
| 7 | Snow thickness, uncertainty | Snow thick unc | m | |||
| 8 | Snow thickness, standard deviation | Snow thick std dev | ± | |||
| 9 | Snow thickness, minimum | Snow thick min | m | |||
| 10 | Snow thickness, maximum | Snow thick max | m | |||
| 11 | Number of observations | NOBS | # | |||
| 12 | Snow freeboard | Snow freeboard | m | |||
| 13 | Snow freeboard, uncertainty | Snow freeboard unc | m | |||
| 14 | Snow freeboard, standard deviation | Snow freeboard std dev | ± | |||
| 15 | Snow freeboard, minimum | Snow freeboard min | m | |||
| 16 | Snow freeboard, maximum | Snow freeboard max | m | |||
| 17 | Surface temperature | Surf temp | °C | |||
| 18 | Surface temperature, standard deviation | Surf temp std dev | ± | |||
| 19 | Surface temperature, minimum | Surf temp min | °C | |||
| 20 | Surface temperature, maximum | Surf temp max | °C | |||
| 21 | Sea ice thickness | EsEs | m | |||
| 22 | Sea ice freeboard | Sea ice freeboard | m | |||
| 23 | Density, ice | Density ice | kg/m3 | |||
| 24 | Density, ice, uncertainty | Density ice unc | kg/m3 | |||
| 25 | Sea ice, age | Sea ice age | a | |||
| 26 | Ice type | Ice type | ||||
| 27 | Quality flag | QF | ||||
| 28 | Quality flag | QF | ||||
| 29 | Quality flag | QF | ||||
| 30 | Quality flag | QF | ||||
| 31 | Quality flag | QF | ||||
| 32 | Quality flag | QF |
Change history:
2024-03-05T07:42:27 – Version 2 Changelog: New, improved quality flag for identifying level and deformed sea ice. It has a stricter condition as the thickness gradient threshold is now applied to the sea-ice thickness parameter instead of total (sea ice + snow) thickness to ensure better identification. In addition, a bug that resulted in flagging level ice sections of insufficient length (<100 m) has been fixed. All other parameters such as the physical thickness values remain unchanged in the new version.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1004761 data points
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