Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium

Jianhua He; Wen Yu; Wuhui Lin; Wu Men; Liqi Chen

doi:10.1007/s00343-015-3357-x

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Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium

OriginalPaper | Updated：2023-05-16

- Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium
- Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium
- 海洋湖沼学报（英文） 2015年33卷第3期页码：741-747
- Affiliations：
  
  1. College of Oceanography and Environment Science Xiamen University
  2. Third Institute of Oceanography State Oceanic Administration
  3. Key Lab of Global Change and Marine-Atmospheric Chemistry State Oceanic Administration
  4. Department of Engineering Physics Tsinghua University
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (Nos. 41106167, 11205094, 41230529, 41476172, 41406221, 41476173), the Youth Foundation of State Oceanic Administration (No. 2011531), and the CHINARE2012-15 for 01-04-02, 02-01, and 03-04-02
- DOI：10.1007/s00343-015-3357-x
  中图分类号：
- 网络首发：2015-01-22，
  
  纸质出版：2015
- Accepted：
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Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium[J]. 海洋湖沼学报（英文）, 2015,33(3):741-747.

He, J., Yu, W., Lin, W. et al. Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium., Chin. J. Ocean. Limnol. 33, 741–747 (2015). https://doi.org/10.1007/s00343-015-3357-x
Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium[J]. 海洋湖沼学报（英文）, 2015,33(3):741-747. DOI： 10.1007/s00343-015-3357-x.

He, J., Yu, W., Lin, W. et al. Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium., Chin. J. Ocean. Limnol. 33, 741–747 (2015). https://doi.org/10.1007/s00343-015-3357-x DOI：

摘要

Abstract

Fluxes of particulate organic carbon (POC) were derived from 210Po/210Pb disequilibrium during the 4th Chinese National Arctic Research Expedition (CHINARE-4) from July 1 to September 28

2010. Average residence times of particulate 210Po in the euphotic zone were −16.00 a to 1.54 a

which are higher than those of dissolved 210Po (−6.89 a to −0.70 a). Great excesses of dissolved 210Po were observed at all stations

with an average 210Po/210Pb ratio of 1.91±0.20

resulting from 210Pb atmospheric deposition after sea ice melt. POC fluxes from the euphotic zone were estimated by two methods (E and B) in the irreversible scavenging model. Estimated POC fluxes were 945–126 mmol C/(m2·a) and 1 848–109 mmol C/(m2·a) by methods E and B

respectively

both decreasing from low to high latitude. The results are comparable to previous works for the same region

indicating efficient biological pumping in the Chukchi Sea. The results can improve understanding of the carbon cycle in the western Arctic Ocean.

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Keywords

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