Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea
The Chinese Polar Environment Comprehensive Investigation and Assessment Programs [CHINARE2014-03-04-03]; National Natural Science Foundation of China [41125020]; 4th Chinese Arctic Research Program; Polar Science Strategic Research Foundation of China [20120307] Pb-210 was measured during the 3rd C...
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ftxiamenuniv:oai:dspace.xmu.edu.cn:2288/88123 2023-05-15T14:43:53+02:00 Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea Hu Wangjiang Chen Min Yang Weifeng Zhang Run Qiu Yusheng Zheng Minfang 陈敏 杨伟锋 张润 2014 JUN http://dspace.xmu.edu.cn/handle/2288/88123 en_US eng SPRINGER ACTA OCEANOLOGICA SINICA, 2014,33(6):28-39 WOS:000336422900004 http://dspace.xmu.edu.cn/handle/2288/88123 http://dx.doi.org/10.1007/s13131-014-0486-6 WESTERN ARCTIC-OCEAN SOUTH CHINA SEA RESIDENCE TIMES BERING-SEA BIOLOGICAL PRODUCTIVITY EQUATORIAL PACIFIC PARTICULATE MATTER SURFACE WATERS NORTH-PACIFIC SHELF WATERS Article 2014 ftxiamenuniv 2020-07-21T11:42:39Z The Chinese Polar Environment Comprehensive Investigation and Assessment Programs [CHINARE2014-03-04-03]; National Natural Science Foundation of China [41125020]; 4th Chinese Arctic Research Program; Polar Science Strategic Research Foundation of China [20120307] Pb-210 was measured during the 3rd Chinese National Arctic Research Expedition cruise to investigate its spatial pattern in the western Arctic Ocean, as well as its relation with the thermocline in the Canadian Basin. The specific activities varied from 0.04 to 2.72, < 0.013 to 4.37, and 0.1 to 4.85 Bq/m(3) for dissolved, particulate, and bulk Pb-210, respectively, corresponding to respective averages of 0.65, 0.43, and 1.08 Bq/m(3). In the Canadian Basin, the minimum Pb-210 activities occurred in the thermocline, which was characterized by low temperature of -1.52A degrees C and salinity of 33.1. Combining the spatial distribution of Pb-210 and hydrographical characteristics in the western Arctic Ocean, this scenario was ascribed to the effective scavenging of Pb-210 when the Pacific water flowed across the Chukchi Shelf. Quantitatively, this interpretation was supported by both the shorter residence times and higher scavenging efficiencies (SE) of dissolved Pb-210 over the Chukchi Shelf. The highest SE values were observed in the Herald Shoal and bottom waters over the slope. Article in Journal/Newspaper Arctic Arctic Ocean Bering Sea Chukchi Chukchi Sea Xiamen University Institutional Repository Arctic Arctic Ocean Bering Sea Chukchi Sea Pacific Chukchi Shelf ENVELOPE(-169.167,-169.167,70.550,70.550) |
institution |
Open Polar |
collection |
Xiamen University Institutional Repository |
op_collection_id |
ftxiamenuniv |
language |
English |
topic |
WESTERN ARCTIC-OCEAN SOUTH CHINA SEA RESIDENCE TIMES BERING-SEA BIOLOGICAL PRODUCTIVITY EQUATORIAL PACIFIC PARTICULATE MATTER SURFACE WATERS NORTH-PACIFIC SHELF WATERS |
spellingShingle |
WESTERN ARCTIC-OCEAN SOUTH CHINA SEA RESIDENCE TIMES BERING-SEA BIOLOGICAL PRODUCTIVITY EQUATORIAL PACIFIC PARTICULATE MATTER SURFACE WATERS NORTH-PACIFIC SHELF WATERS Hu Wangjiang Chen Min Yang Weifeng Zhang Run Qiu Yusheng Zheng Minfang 陈敏 杨伟锋 张润 Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea |
topic_facet |
WESTERN ARCTIC-OCEAN SOUTH CHINA SEA RESIDENCE TIMES BERING-SEA BIOLOGICAL PRODUCTIVITY EQUATORIAL PACIFIC PARTICULATE MATTER SURFACE WATERS NORTH-PACIFIC SHELF WATERS |
description |
The Chinese Polar Environment Comprehensive Investigation and Assessment Programs [CHINARE2014-03-04-03]; National Natural Science Foundation of China [41125020]; 4th Chinese Arctic Research Program; Polar Science Strategic Research Foundation of China [20120307] Pb-210 was measured during the 3rd Chinese National Arctic Research Expedition cruise to investigate its spatial pattern in the western Arctic Ocean, as well as its relation with the thermocline in the Canadian Basin. The specific activities varied from 0.04 to 2.72, < 0.013 to 4.37, and 0.1 to 4.85 Bq/m(3) for dissolved, particulate, and bulk Pb-210, respectively, corresponding to respective averages of 0.65, 0.43, and 1.08 Bq/m(3). In the Canadian Basin, the minimum Pb-210 activities occurred in the thermocline, which was characterized by low temperature of -1.52A degrees C and salinity of 33.1. Combining the spatial distribution of Pb-210 and hydrographical characteristics in the western Arctic Ocean, this scenario was ascribed to the effective scavenging of Pb-210 when the Pacific water flowed across the Chukchi Shelf. Quantitatively, this interpretation was supported by both the shorter residence times and higher scavenging efficiencies (SE) of dissolved Pb-210 over the Chukchi Shelf. The highest SE values were observed in the Herald Shoal and bottom waters over the slope. |
format |
Article in Journal/Newspaper |
author |
Hu Wangjiang Chen Min Yang Weifeng Zhang Run Qiu Yusheng Zheng Minfang 陈敏 杨伟锋 张润 |
author_facet |
Hu Wangjiang Chen Min Yang Weifeng Zhang Run Qiu Yusheng Zheng Minfang 陈敏 杨伟锋 张润 |
author_sort |
Hu Wangjiang |
title |
Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea |
title_short |
Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea |
title_full |
Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea |
title_fullStr |
Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea |
title_full_unstemmed |
Low Pb-210 in the upper thermocline in the Canadian Basin: scavenge process over the Chukchi Sea |
title_sort |
low pb-210 in the upper thermocline in the canadian basin: scavenge process over the chukchi sea |
publisher |
SPRINGER |
publishDate |
2014 |
url |
http://dspace.xmu.edu.cn/handle/2288/88123 |
long_lat |
ENVELOPE(-169.167,-169.167,70.550,70.550) |
geographic |
Arctic Arctic Ocean Bering Sea Chukchi Sea Pacific Chukchi Shelf |
geographic_facet |
Arctic Arctic Ocean Bering Sea Chukchi Sea Pacific Chukchi Shelf |
genre |
Arctic Arctic Ocean Bering Sea Chukchi Chukchi Sea |
genre_facet |
Arctic Arctic Ocean Bering Sea Chukchi Chukchi Sea |
op_source |
http://dx.doi.org/10.1007/s13131-014-0486-6 |
op_relation |
ACTA OCEANOLOGICA SINICA, 2014,33(6):28-39 WOS:000336422900004 http://dspace.xmu.edu.cn/handle/2288/88123 |
_version_ |
1766315467778031616 |