Development of a sea-ice tank system for measuring microwave properties of sea ice
An outdoor sea-ice tank system for measuring the microwave properties of sea ice has been developed. With the natural cooling and the help of a cooling unit in the movable roof attached to the tank, the system can grow sea ice to about 50 cm thickness continuously without the effects of snowfall and...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2024-01-01
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| Series: | Journal of Glaciology |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143024000066/type/journal_article |
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| author | Masashige Nakayama Kazuhiro Naoki Tomonori Tanikawa Kohei Cho |
| author_facet | Masashige Nakayama Kazuhiro Naoki Tomonori Tanikawa Kohei Cho |
| author_sort | Masashige Nakayama |
| collection | DOAJ |
| description | An outdoor sea-ice tank system for measuring the microwave properties of sea ice has been developed. With the natural cooling and the help of a cooling unit in the movable roof attached to the tank, the system can grow sea ice to about 50 cm thickness continuously without the effects of snowfall and/or melting. Portable microwave radiometers are attached beside the tank to measure the brightness temperature of the ice. As sea ice grows, the system can measure microwave brightness temperature, and seawater/ice temperature at each depth and thickness of sea ice. The bulk salinity of sea ice is measured by sampling. The following results were obtained from experiments conducted during two winters. (1) Rapid desalination was observed during the early stages of growth with ice thicknesses of 0–5 cm. (2) A new relational expression between ice thickness and bulk salinity at this thickness was obtained. (3) The rapid rise in microwave brightness temperature associated with the increase in sea-ice thickness during the early stages of sea-ice growth was captured in each frequency band. The microwave measurements from the sea-ice tank system are expected to provide new insights into the microwave properties of sea ice. |
| format | Article |
| id | doaj-art-7c7a0860f63c4d3d8d7f4eff291b7646 |
| institution | Kabale University |
| issn | 0022-1430 1727-5652 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj-art-7c7a0860f63c4d3d8d7f4eff291b76462025-01-16T21:53:24ZengCambridge University PressJournal of Glaciology0022-14301727-56522024-01-017010.1017/jog.2024.6Development of a sea-ice tank system for measuring microwave properties of sea iceMasashige Nakayama0Kazuhiro Naoki1Tomonori Tanikawa2https://orcid.org/0000-0002-8516-6514Kohei Cho3Hokkaido University of Education, Kushiro Campus, Kushiro 085-8580, JapanTokai University Research & Information Center, Tokyo 108-0074, JapanMeteorological Research Institute, Japan Meteorological Agency, Tsukuba 305-0052, JapanTokai University Research & Information Center, Tokyo 108-0074, JapanAn outdoor sea-ice tank system for measuring the microwave properties of sea ice has been developed. With the natural cooling and the help of a cooling unit in the movable roof attached to the tank, the system can grow sea ice to about 50 cm thickness continuously without the effects of snowfall and/or melting. Portable microwave radiometers are attached beside the tank to measure the brightness temperature of the ice. As sea ice grows, the system can measure microwave brightness temperature, and seawater/ice temperature at each depth and thickness of sea ice. The bulk salinity of sea ice is measured by sampling. The following results were obtained from experiments conducted during two winters. (1) Rapid desalination was observed during the early stages of growth with ice thicknesses of 0–5 cm. (2) A new relational expression between ice thickness and bulk salinity at this thickness was obtained. (3) The rapid rise in microwave brightness temperature associated with the increase in sea-ice thickness during the early stages of sea-ice growth was captured in each frequency band. The microwave measurements from the sea-ice tank system are expected to provide new insights into the microwave properties of sea ice.https://www.cambridge.org/core/product/identifier/S0022143024000066/type/journal_articledesalinationice thicknessmicrowave propertyoutdoor tanksea ice |
| spellingShingle | Masashige Nakayama Kazuhiro Naoki Tomonori Tanikawa Kohei Cho Development of a sea-ice tank system for measuring microwave properties of sea ice Journal of Glaciology desalination ice thickness microwave property outdoor tank sea ice |
| title | Development of a sea-ice tank system for measuring microwave properties of sea ice |
| title_full | Development of a sea-ice tank system for measuring microwave properties of sea ice |
| title_fullStr | Development of a sea-ice tank system for measuring microwave properties of sea ice |
| title_full_unstemmed | Development of a sea-ice tank system for measuring microwave properties of sea ice |
| title_short | Development of a sea-ice tank system for measuring microwave properties of sea ice |
| title_sort | development of a sea ice tank system for measuring microwave properties of sea ice |
| topic | desalination ice thickness microwave property outdoor tank sea ice |
| url | https://www.cambridge.org/core/product/identifier/S0022143024000066/type/journal_article |
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