Preliminary study on particulate organic carbon export fluxes in the Bering Sea
During the Second Chinese National Arctic Expedition (CHINARE) from July to September 2003, depth profiles of dissolved and particulate 234Th in upper water columns were collected at two stations of BR03 and BR24 in the Bering Sea. 234Th was sampled by using a traditional Fe (OH)3 co-precipitation t...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Polar Research Institute of China - PRIC
2009
|
Subjects: | |
Online Access: | http://library.arcticportal.org/2374/ http://library.arcticportal.org/2374/1/A0090107.pdf |
id |
ftarcticportal:oai:generic.eprints.org:2374 |
---|---|
record_format |
openpolar |
spelling |
ftarcticportal:oai:generic.eprints.org:2374 2023-10-09T21:44:11+02:00 Preliminary study on particulate organic carbon export fluxes in the Bering Sea Hao, Ma Zhi, Zeng Jianhua, He Mingduan, Yin Liqi, Chen Shi, Zeng 2009-06 application/pdf http://library.arcticportal.org/2374/ http://library.arcticportal.org/2374/1/A0090107.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2374/1/A0090107.pdf Hao, Ma and Zhi, Zeng and Jianhua, He and Mingduan, Yin and Liqi, Chen and Shi, Zeng (2009) Preliminary study on particulate organic carbon export fluxes in the Bering Sea. Advances in Polar Science, 20 (1). pp. 57-63. Oceans Article PeerReviewed 2009 ftarcticportal 2023-09-13T22:54:14Z During the Second Chinese National Arctic Expedition (CHINARE) from July to September 2003, depth profiles of dissolved and particulate 234Th in upper water columns were collected at two stations of BR03 and BR24 in the Bering Sea. 234Th was sampled by using a traditional Fe (OH)3 co-precipitation technique, which is a reliable approach to 234Th measurement. We observed 234Th excess at station BR03 below the euphotic zone, which was possibly due to the intensive remineralization of particulate matter. Particulate organic carbon (POC) export fluxes were estimated from a one-dimensional irreversible steady state model of 234Th fluxes together with measurements of the POC/234Th ratio on the suspended particles. The POC export fluxes from the euphotic zone were 11.66 and 11.69 mmol Cm-2d-1 at BR03 and BR24 stations, respectively. The ratios o f POC fluxes to primary production at the two stations were about 0.5 and 0.59, respectively, probably due to the presence of large phytoplankton (in particular diatoms). Article in Journal/Newspaper Advances in Polar Science Arctic Bering Sea Phytoplankton Polar Science Polar Science Arctic Portal Library Arctic Bering Sea |
institution |
Open Polar |
collection |
Arctic Portal Library |
op_collection_id |
ftarcticportal |
language |
English |
topic |
Oceans |
spellingShingle |
Oceans Hao, Ma Zhi, Zeng Jianhua, He Mingduan, Yin Liqi, Chen Shi, Zeng Preliminary study on particulate organic carbon export fluxes in the Bering Sea |
topic_facet |
Oceans |
description |
During the Second Chinese National Arctic Expedition (CHINARE) from July to September 2003, depth profiles of dissolved and particulate 234Th in upper water columns were collected at two stations of BR03 and BR24 in the Bering Sea. 234Th was sampled by using a traditional Fe (OH)3 co-precipitation technique, which is a reliable approach to 234Th measurement. We observed 234Th excess at station BR03 below the euphotic zone, which was possibly due to the intensive remineralization of particulate matter. Particulate organic carbon (POC) export fluxes were estimated from a one-dimensional irreversible steady state model of 234Th fluxes together with measurements of the POC/234Th ratio on the suspended particles. The POC export fluxes from the euphotic zone were 11.66 and 11.69 mmol Cm-2d-1 at BR03 and BR24 stations, respectively. The ratios o f POC fluxes to primary production at the two stations were about 0.5 and 0.59, respectively, probably due to the presence of large phytoplankton (in particular diatoms). |
format |
Article in Journal/Newspaper |
author |
Hao, Ma Zhi, Zeng Jianhua, He Mingduan, Yin Liqi, Chen Shi, Zeng |
author_facet |
Hao, Ma Zhi, Zeng Jianhua, He Mingduan, Yin Liqi, Chen Shi, Zeng |
author_sort |
Hao, Ma |
title |
Preliminary study on particulate organic carbon export fluxes in the Bering Sea |
title_short |
Preliminary study on particulate organic carbon export fluxes in the Bering Sea |
title_full |
Preliminary study on particulate organic carbon export fluxes in the Bering Sea |
title_fullStr |
Preliminary study on particulate organic carbon export fluxes in the Bering Sea |
title_full_unstemmed |
Preliminary study on particulate organic carbon export fluxes in the Bering Sea |
title_sort |
preliminary study on particulate organic carbon export fluxes in the bering sea |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2009 |
url |
http://library.arcticportal.org/2374/ http://library.arcticportal.org/2374/1/A0090107.pdf |
geographic |
Arctic Bering Sea |
geographic_facet |
Arctic Bering Sea |
genre |
Advances in Polar Science Arctic Bering Sea Phytoplankton Polar Science Polar Science |
genre_facet |
Advances in Polar Science Arctic Bering Sea Phytoplankton Polar Science Polar Science |
op_relation |
http://library.arcticportal.org/2374/1/A0090107.pdf Hao, Ma and Zhi, Zeng and Jianhua, He and Mingduan, Yin and Liqi, Chen and Shi, Zeng (2009) Preliminary study on particulate organic carbon export fluxes in the Bering Sea. Advances in Polar Science, 20 (1). pp. 57-63. |
_version_ |
1779319403702124544 |