Under-ice current measurements during MOSAiC from a 75 kHz acoustic Doppler profiler

Horizontal ocean currents were measured from drifting sea ice, using an RD-Instruments 75 kHz ADCP (acoustic Doppler current profiler), Longranger, deployed pointing downward through an hydrohole on ice for all three drifts of the MOSAiC expedition between 30 November 2019 and 19 September 2020. Due...

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Bibliographic Details
Main Authors: Baumann, Till, Fer, Ilker, Bryhni, Helge, Peterson, Algot K, Allerholt, Jacob, Fang, Ying-Chih, Hoppmann, Mario, Karam, Salar, Koenig, Zoé, Kong, Bin, Mohrholz, Volker, Muilwijk, Morven, Schaffer, Janin, Schulz, Kirstin, Sukhikh, Natalia, Tippenhauer, Sandra
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Acoustic Doppler Current Profiler
ADCP
Arctic
Arctic Ocean
Arctic Ocean mixing processes and vertical fluxes of energy and matter
AROMA
current
current meter
drift
ice
Mosaic
MOSAiC20192020
Multidisciplinary drifting Observatory for the Study of Arctic Climate
ocean
Polarstern
PS122/1
PS122/1_1-274
PS122/2
PS122/2_14-269
PS122/3
PS122/3_28-154
PS122/3_28-2
PS122/4
PS122/4_43-106
PS122/5
PS122/5_58-112
Sea ice
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.934792
https://doi.org/10.1594/PANGAEA.934792
Description
Summary:Horizontal ocean currents were measured from drifting sea ice, using an RD-Instruments 75 kHz ADCP (acoustic Doppler current profiler), Longranger, deployed pointing downward through an hydrohole on ice for all three drifts of the MOSAiC expedition between 30 November 2019 and 19 September 2020. Due to the unreliability of magnetic compasses at high latitudes, a GPS compass was used and the current profiles were recorded in beam coordinates. Geo-referenced, eastward and northward velocity components in the upper 500 m were obtained during post processing.

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