Dadic, Ruzica; Nomura, Daiki; Akino, Ryota; Kolabutin, Nikolai; Shimanchuk, Egor (2024): Porosity of the melt pond bottom ice measured by micro-CT scanning during expedition PS122/5 (MOSAiC Leg 5) to the central Arctic Ocean [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973632 (DOI registration in progress)
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Abstract:
Porosity of sea ice were measured by micro-CT scanning. Micro-CT samples are collected from melt pond using an ice corer (Mark II coring system, Kovacs Enterprises, Inc., Indianapolis, USA). The microstructure of the ice cores was measured onboard R/V Polarstern with a micro-CT (Scanco Medical micro-CT 9. SCANCO Medical AG, Switzerland). The core samples were immediately transported to a cold laboratory at –15°C to prevent structural changes prior to measuring. Ice sections (5 cm × 5 cm × 5 cm) were cut off from the ice cores for measurement in the band saw in the cold laboratory. The temperature inside the micro-CT was consistently –12°C during the scan. The samples were scanned, and using this sampling collection method, we could measure the microstructure to a resolution of 26–42 mm in an approximate 20 mm × 20 mm footprint, depending on the sample diameter. After scanning the samples and producing the 3-D model reconstruction, we segmented the voxels of ice and air within the 3-D structure and used the segmented images to calculate the geometrical parameters. We used IPL Version 5.42 (Scanco Medical AG) to evaluate porosity using a triangulation-based estimate from the micro-CT samples. Details for micro-CT measuring method are explained in Nicolaus et al. (2022).
References:
Nicolaus, Marcel; Perovich, Donald K; Spreen, Gunnar; Granskog, Mats A; von Albedyll, Luisa; Angelopoulos, Michael; Anhaus, Philipp; Arndt, Stefanie; Belter, Hans Jakob; Bessonov, Vladimir; Birnbaum, Gerit; Brauchle, Jörg; Calmer, Radiance; Cardellach, Estel; Cheng, Bin; Clemens-Sewall, David; Dadic, Ruzica; Damm, Ellen; de Boer, Gijs; Demir, Oguz; Dethloff, Klaus; Divine, Dmitry V; Fong, Allison A; Fons, Steven W; Frey, Markus M; Fuchs, Niels; Gabarró, Carolina; Gerland, Sebastian; Goessling, Helge; Gradinger, Rolf; Haapala, Jari; Haas, Christian; Hamilton, Jonathan; Hannula, Henna-Reetta; Hendricks, Stefan; Herber, Andreas; Heuzé, Céline; Hoppmann, Mario; Høyland, Knut Vilhelm; Huntemann, Marcus; Hutchings, Jennifer K; Hwang, Byongjun; Itkin, Polona; Jacobi, Hans-Werner; Jaggi, Matthias; Jutila, Arttu; Kaleschke, Lars; Katlein, Christian; Kolabutin, Nikolai; Krampe, Daniela; Kristensen, Steen Savstrup; Krumpen, Thomas; Kurtz, Nathan; Lampert, Astrid; Lange, Benjamin Allen; Lei, Ruibo; Light, Bonnie; Linhardt, Felix; Liston, Glen E; Loose, Brice; Macfarlane, Amy R; Mahmud, Mallik; Matero, Ilkka; Maus, Sönke; Morgenstern, Anne; Naderpour, Reza; Nandan, Vishnu; Niubom, Alexey; Oggier, Marc; Oppelt, Natascha; Pätzold, Falk; Perron, Christophe; Petrovsky, Tomasz; Pirazzini, Roberta; Polashenski, Chris; Rabe, Benjamin; Raphael, Ian; Regnery, Julia; Rex, Markus; Ricker, Robert; Riemann-Campe, Kathrin; Rinke, Annette; Rohde, Jan; Salganik, Evgenii; Scharien, Randall K; Schiller, Martin; Schneebeli, Martin; Semmling, Maximilian; Shimanchuk, Egor; Shupe, Matthew D; Smith, Madison M; Smolyanitsky, Vasily M; Sokolov, Vladimir; Stanton, T; Stroeve, Julienne C; Thielke, Linda; Timofeeva, Anna; Tonboe, Rasmus Tage; Tavri, Aikaterini; Tsamados, Michel; Wagner, David N; Watkins, Daniel; Webster, Melinda; Wendisch, Manfred (2022): Overview of the MOSAiC expedition: Snow and sea ice. 10(1), https://doi.org/10.1525/elementa.2021.000046
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
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0869A: MOSAiC 1 CiASOM: Verwendung von stabilen Wasserisotopen für ein besseres Verständnis des arktischen Wasserkreislaufs
Japan Society for the Promotion of Science (JSPS), grant/award no. JP18KK0292: Joint research between Germany and Japan on the Arctic moistening
Coverage:
Latitude: 89.006060 * Longitude: 101.648590
Date/Time Start: 2020-09-14T10:00:00 * Date/Time End: 2020-09-14T10:00:00
Event(s):
PS122/5_62-35 * Latitude: 89.006059 * Longitude: 101.648593 * Date/Time: 2020-09-14T10:00:00 * O2A Registry URI: registry.o2a-data.de * Location: Arctic Ocean * Campaign: PS122/5 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: Meltpond 4a afternoon Daiki, Nikolai and Egor; Ice core for temperature; Ice core for salinity; Ice core for optics; Ice core for texture
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Dadic, Ruzica | |||
| 2 | Station label | Station | Dadic, Ruzica | |||
| 3 | LATITUDE | Latitude | Dadic, Ruzica | Geocode | ||
| 4 | LONGITUDE | Longitude | Dadic, Ruzica | Geocode | ||
| 5 | Sample type | Samp type | Dadic, Ruzica | |||
| 6 | Distance | Dist | mm | Dadic, Ruzica | Depth from pond bottom | |
| 7 | Porosity | Poros | % | Dadic, Ruzica | X-ray micro-computed tomography | |
| 8 | Comment | Comment | Dadic, Ruzica | Note |
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:
260 data points