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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 (2021): Under-ice current measurements during MOSAiC from a 75 kHz acoustic Doppler profiler. PANGAEA, https://doi.org/10.1594/PANGAEA.934792

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Abstract:
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.
Keyword(s):
ADCP; Arctic; current; current meter; drift; ice; Mosaic; ocean
Related to:
Rabe, Benjamin; Heuzé, Céline; Regnery, Julia; Aksenov, Yevgeny; Allerholt, Jacob; Athanase, Marylou; Bai, Youcheng; Basque, Chris; Bauch, Dorothea; Baumann, Till; Chen, Dake; Cole, Sylvia T; Craw, Lisa; Davies, Andrew; Damm, Ellen; Dethloff, Klaus; Divine, Dmitry V; Doglioni, Francesca; Ebert, Falk; Fang, Ying-Chih; Fer, Ilker; Fong, Allison A; Gradinger, Rolf; Granskog, Mats A; Graupner, Rainer; Haas, Christian; He, Hailun; He, Yan; Hoppmann, Mario; Janout, Markus A; Kadko, David; Kanzow, Torsten; Karam, Salar; Kawaguchi, Yusuke; Koenig, Zoé; Kong, Bin; Krishfield, Richard A; Krumpen, Thomas; Kuhlmey, David; Kuznetsov, Ivan; Lan, Musheng; Laukert, Georgi; Lei, Ruibo; Li, Tao; Torres-Valdés, Sinhue; Lin, Lina; Lin, Long; Liu, Hailong; Liu, Na; Loose, Brice; Ma, Xiaobing; McKay, Rosalie; Mallet, Maria; Mallett, Robbie D C; Maslowski, Wieslaw; Mertens, Christian; Mohrholz, Volker; Muilwijk, Morven; Nicolaus, Marcel; O'Brien, Jeffrey K; Perovich, Donald K; Ren, Jian; Rex, Markus; Ribeiro, Natalia; Rinke, Annette; Schaffer, Janin; Schuffenhauer, Ingo; Schulz, Kirstin; Shupe, Matthew D; Shaw, William; Sokolov, Vladimir; Sommerfeld, Anja; Spreen, Gunnar; Stanton, Timothy; Stephens, Mark; Su, Jie; Sukhikh, Natalia; Sundfjord, Arild; Thomisch, Karolin; Tippenhauer, Sandra; Toole, John M; Vredenborg, Myriel; Walter, Maren; Wang, Hangzhou; Wang, Lei; Wang, Yuntao; Wendisch, Manfred; Zhao, Jinping; Zhou, Meng; Zhu, Jialiang (2022): Overview of the MOSAiC expedition. Elementa - Science of the Anthropocene, 10(1), 00062, https://doi.org/10.1525/elementa.2021.00062
Further details:
Baumann, Till; Fer, Ilker (2021): Under-ice current measurements during MOSAiC from a 75 kHz acoustic Doppler profiler. Geophysical Institute, University of Bergen, Norway, On_ice_ADCP75_report.pdf
Project(s):
Arctic Ocean mixing processes and vertical fluxes of energy and matter (AROMA)
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
The Research Council of Norway (RCN), grant/award no. 294396: Arctic Ocean mixing processes and vertical fluxes of energy and matter
Coverage:
Median Latitude: 84.834801 * Median Longitude: 69.414264 * South-bound Latitude: 78.132614 * West-bound Longitude: 9.258796 * North-bound Latitude: 88.591064 * East-bound Longitude: 122.830472
Date/Time Start: 2019-11-30T10:52:00 * Date/Time End: 2020-08-26T07:00:00
Minimum Elevation: -4420.2 m * Maximum Elevation: -983.6 m
Event(s):
PS122/1_1-274 * Latitude Start: 86.045038 * Longitude Start: 122.830472 * Latitude End: 86.045038 * Longitude End: 122.830472 * Date/Time Start: 2019-11-30T10:52:00 * Date/Time End: 2019-12-13T09:04:45 * Elevation: -4420.2 m * Sensor URI: Link * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Acoustic Doppler Current Profiler (ADCP)
PS122/2_14-269 * Latitude: 86.593231 * Longitude: 119.237001 * Date/Time: 2019-12-13T09:11:00 * Elevation: -4401.7 m * Sensor URI: Link * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Acoustic Doppler Current Profiler (ADCP) * Comment: Recording continued from Leg 1
PS122/3_28-2 * Latitude Start: 88.591064 * Longitude Start: 55.585638 * Latitude End: 78.132614 * Longitude End: 10.594010 * Date/Time Start: 2020-02-24T09:00:00 * Date/Time End: 2020-06-03T19:44:00 * Elevation: -4412.4 m * Sensor URI: Link * Location: Arctic Ocean * Campaign: PS122/3 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Acoustic Doppler Current Profiler (ADCP)
Comment:
The On_ice_ADCP75_report.pdf file contains all relevant information about the processing of the data in the MOSAiC_ADCP75_SN15964.nc file, which complies with CF standards in the netCDF file.
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
36.7 MBytes

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