Lei, Ruibo; Yuan, Zhuoli; Zuo, Guangyu; Lin, Long; Wang, Hangzhou (2022): Snow depth and ice thickness estimated from the temperature profile or measured by the acoustic sounder of the ice unit of the unmanned ice station during the MOSAiC expedition [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.938480, In: Lei, R et al. (2022): The ice mass balance and CT package data of the buoy unmanned ice station collected in Arctic Ocean during the MOSAiC expedition 2019/2020 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.940188
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Abstract:
The initial ice thickness and snow depth at the buoy deployment site were 1.53 and 0.15 m, respectively. The changes in ice thickness was determined using measurements by the underwater acoustic sounder. The measuring noise of the acoustic sounder has been removed. Since the acoustic sensor at the surface was invalid very soon after the deployment, the evolution of the air/snow interface was determined using the temperature profiles. Overall, the measurement accuracy was 0.1 K for temperature, 0.03 m for the snow or ice surface, and 0.01 m for the ice bottom, respectively. After the snow cover melted over, the negative values for the snow depth indicate the onset of ice surface melt.
Related to:
Krumpen, Thomas; Sokolov, Vladimir (2020): The Expedition AF122/1 : Setting up the MOSAiC Distributed Network in October 2019 with Research Vessel AKADEMIK FEDOROV. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 744, 119 pp, https://doi.org/10.2312/BzPM_0744_2020
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
Coverage:
Median Latitude: 81.549061 * Median Longitude: 41.872565 * South-bound Latitude: 79.759433 * West-bound Longitude: -4.955586 * North-bound Latitude: 85.128317 * East-bound Longitude: 135.528867
Date/Time Start: 2019-10-10T05:13:00 * Date/Time End: 2020-06-15T02:00:00
Minimum Elevation: -1122.3 m * Maximum Elevation: -1122.3 m
Event(s):
AF-MOSAiC-1_100 (PS122/1_1-263) * Latitude Start: 85.128317 * Longitude Start: 135.528867 * Latitude End: 79.759433 * Longitude End: -4.955586 * Date/Time Start: 2019-10-10T04:46:00 * Date/Time End: 2020-08-07T13:00:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: AF-MOSAiC-1 (MOSAiC20192020, AF122/1) * Basis: Akademik Fedorov * Method/Device: Unmanned ice station (UnIS) * Comment: __Measurement:air temperature, pressure, and humidity, snow depth, ice thickness, snow and ice temperature, and spetral radiation from air through ice into the water__Comment:__Old Labels:L3_UNMANED_ICE_PRIC_20191010,PS122/1_1-263
PS122/4_43-177 * Latitude: 79.759433 * Longitude: -4.955586 * Date/Time: 2020-08-07T13:00:00 * Elevation: -1122.3 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Unmanned ice station (UnIS) * Comment: only IMB surface unit
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Lei, Ruibo | Geocode – UTC | ||
| 2 | Snow thickness | Snow thick | m | Lei, Ruibo | Snow depth | |
| 3 | Ice thickness | Ice thick | m | Lei, Ruibo |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
12304 data points
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