Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer
Thermodynamic processes of a system involving a floe and a small lead in the central Arctic were investigated during the ice-camp period of the third Chinese National Arctic Research Expedition from 20 to 28 August, 2008. The measurements included surface air temperatures above the floe, spectral al...
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Polar Research Institute of China - PRIC
2011
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ftarcticportal:oai:generic.eprints.org:2407 2023-10-09T21:44:11+02:00 Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer Ruibo, Lei Zhijun, Li Bin, Cheng Qinghua, Yang Na, Li 2011-03 application/pdf http://library.arcticportal.org/2407/ http://library.arcticportal.org/2407/1/A20110102.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2407/1/A20110102.pdf Ruibo, Lei and Zhijun, Li and Bin, Cheng and Qinghua, Yang and Na, Li (2011) Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer. Advances in Polar Science, 22 (1). pp. 10-16. Atmosphere Oceans Article PeerReviewed 2011 ftarcticportal 2023-09-13T22:54:14Z Thermodynamic processes of a system involving a floe and a small lead in the central Arctic were investigated during the ice-camp period of the third Chinese National Arctic Research Expedition from 20 to 28 August, 2008. The measurements included surface air temperatures above the floe, spectral albedo of the lead, seawater temperatures in the lead and under the ice cover, and the lateral and bottom mass balance of the floe. The surface air temperature at 1.15 m remained below 0℃ throughout the observation period and sea ice had commenced its annual cycle of growth in response to autumn cooling during the study. The surface of the lead was frozen by 23 August, after which the spectral albedo of the thin-ice-covered lead in the band of 320−950 nm was 0.46 ±0.03, the seawater temperatures both in the lead and under the ice cover, as well as the vertical seawater-temperature gradient in the lead decreased gradually, and the oceanic heat under the ice was maintained at a low level approaching 0 W/m2. By the end of the measurement, the thickness of the investigated floe had reached its annual minimum, while the lateral of the floe was still in the melting phase, with a mean melting rate of 1.0 ±0.3 cm/d during the measurement, responding to an equivalent latent heat flux of 21 ±6 W/m2. The lateral melting of the floe had made a more significant contribution to the sea-ice mass balance than the surface and bottom melting in the end of August. Article in Journal/Newspaper Advances in Polar Science albedo Arctic Arctic Polar Science Polar Science Sea ice Arctic Portal Library Arctic |
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Open Polar |
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Arctic Portal Library |
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ftarcticportal |
language |
English |
topic |
Atmosphere Oceans |
spellingShingle |
Atmosphere Oceans Ruibo, Lei Zhijun, Li Bin, Cheng Qinghua, Yang Na, Li Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer |
topic_facet |
Atmosphere Oceans |
description |
Thermodynamic processes of a system involving a floe and a small lead in the central Arctic were investigated during the ice-camp period of the third Chinese National Arctic Research Expedition from 20 to 28 August, 2008. The measurements included surface air temperatures above the floe, spectral albedo of the lead, seawater temperatures in the lead and under the ice cover, and the lateral and bottom mass balance of the floe. The surface air temperature at 1.15 m remained below 0℃ throughout the observation period and sea ice had commenced its annual cycle of growth in response to autumn cooling during the study. The surface of the lead was frozen by 23 August, after which the spectral albedo of the thin-ice-covered lead in the band of 320−950 nm was 0.46 ±0.03, the seawater temperatures both in the lead and under the ice cover, as well as the vertical seawater-temperature gradient in the lead decreased gradually, and the oceanic heat under the ice was maintained at a low level approaching 0 W/m2. By the end of the measurement, the thickness of the investigated floe had reached its annual minimum, while the lateral of the floe was still in the melting phase, with a mean melting rate of 1.0 ±0.3 cm/d during the measurement, responding to an equivalent latent heat flux of 21 ±6 W/m2. The lateral melting of the floe had made a more significant contribution to the sea-ice mass balance than the surface and bottom melting in the end of August. |
format |
Article in Journal/Newspaper |
author |
Ruibo, Lei Zhijun, Li Bin, Cheng Qinghua, Yang Na, Li |
author_facet |
Ruibo, Lei Zhijun, Li Bin, Cheng Qinghua, Yang Na, Li |
author_sort |
Ruibo, Lei |
title |
Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer |
title_short |
Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer |
title_full |
Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer |
title_fullStr |
Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer |
title_full_unstemmed |
Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer |
title_sort |
investigation of the thermodynamic processes of a floe-lead system in the central arctic during later summer |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2011 |
url |
http://library.arcticportal.org/2407/ http://library.arcticportal.org/2407/1/A20110102.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Advances in Polar Science albedo Arctic Arctic Polar Science Polar Science Sea ice |
genre_facet |
Advances in Polar Science albedo Arctic Arctic Polar Science Polar Science Sea ice |
op_relation |
http://library.arcticportal.org/2407/1/A20110102.pdf Ruibo, Lei and Zhijun, Li and Bin, Cheng and Qinghua, Yang and Na, Li (2011) Investigation of the thermodynamic processes of a floe-lead system in the central Arctic during later summer. Advances in Polar Science, 22 (1). pp. 10-16. |
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1779319770382860288 |