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

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 s...

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Bibliographic Details
Main Authors: Lei, Ruibo, Yuan, Zhuoli, Zuo, Guangyu, Lin, Long, Wang, Hangzhou
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
AF-MOSAiC-1
AF-MOSAiC-1_100
Akademik Fedorov
Arctic Ocean
DATE/TIME
Ice thickness
Mosaic
MOSAiC20192020
AF122/1
Multidisciplinary drifting Observatory for the Study of Arctic Climate
Polarstern
PS122/1_1-263
PS122/4
PS122/4_43-177
Sea ice mass balance
Snow thickness
UnIS
Unmanned ice station
Arctic
Berichte zur Polar- und Meeresforschung
Reports on Polar and Marine Research
Sea ice
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.938480
https://doi.org/10.1594/PANGAEA.938480
Description
Summary: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.

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