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| Autores principales: | , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2024
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| Materias: | |
| Acceso en línea: | https://doi.org/10.1594/PANGAEA.973632 |
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| _version_ | 1867170127868329984 |
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| author | Dadic, Ruzica Nomura, Daiki Akino, Ryota Kolabutin, Nikolai Shimanchuk, Egor |
| author_facet | Dadic, Ruzica Nomura, Daiki Akino, Ryota Kolabutin, Nikolai Shimanchuk, Egor |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_973632 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Porosity of the melt pond bottom ice measured by micro-CT scanning during expedition PS122/5 (MOSAiC Leg 5) to the central Arctic Ocean Dadic, Ruzica Nomura, Daiki Akino, Ryota Kolabutin, Nikolai Shimanchuk, Egor Arctic Ocean; Comment; Distance; Event label; IC; Ice corer; LATITUDE; LONGITUDE; melt pond; Microstructure; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; Porosity; PS122/5; PS122/5_62-35; Sample type; Sea ice; Station label; X-ray micro-computed tomography 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). |
| title | Porosity of the melt pond bottom ice measured by micro-CT scanning during expedition PS122/5 (MOSAiC Leg 5) to the central Arctic Ocean |
| topic | Arctic Ocean; Comment; Distance; Event label; IC; Ice corer; LATITUDE; LONGITUDE; melt pond; Microstructure; MOSAiC; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Polarstern; Porosity; PS122/5; PS122/5_62-35; Sample type; Sea ice; Station label; X-ray micro-computed tomography |
| url | https://doi.org/10.1594/PANGAEA.973632 |