, Yukiko Ono 4

We applied a three-dimensional ecosystem-physical coupled model including iron the effect to the Okhotsk Sea. In order to clarify the sources of iron, four dissolved iron compartments, based on the sources of supply, were added to Kawamiya et al.’s(1995) model (KKYS) to create our ecosystem model (K...

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Main Authors: Takeshi Okunishi, Michio J. Kishi, Toshihiko Yamashita
Other Authors: The Pennsylvania State University CiteSeerX Archives
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Language:English
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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.623.3227
http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.623.3227 2023-05-15T17:52:33+02:00 , Yukiko Ono 4 Takeshi Okunishi Michio J. Kishi Toshihiko Yamashita The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.623.3227 http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.623.3227 http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf text ftciteseerx 2016-01-08T15:06:21Z We applied a three-dimensional ecosystem-physical coupled model including iron the effect to the Okhotsk Sea. In order to clarify the sources of iron, four dissolved iron compartments, based on the sources of supply, were added to Kawamiya et al.’s(1995) model (KKYS) to create our ecosystem model (KKYS-Fe). We hypothesized that four processes supply iron to sea water: atmospheric loadings from Northeastern Asia, input from the Amur River, dissolution from sediments and regeneration by zooplankton and bacteria. We simulated 1year, from 1 January, 2001 to 31 December, 2001, using both KKYS-Fe and KKYS. KKYS could not reproduce the surface nitrate distribution after the spring bloom, whereas KKYS-Fe agreed well with observations in the northwestern Pacific because it includes iron limitation of phytoplankton growth. During the spring bloom, the main source of iron at the sea surface is from the atmosphere. The contribution of riverine iron to the total iron utilized for primary production is small in the Okhotsk Sea. Atmospheric deposition, the iron flux from sediment and regeneration of iron in the water column play important roles in maintaining high primary production in the Okhotsk Sea. Text okhotsk sea Unknown Okhotsk Pacific
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description We applied a three-dimensional ecosystem-physical coupled model including iron the effect to the Okhotsk Sea. In order to clarify the sources of iron, four dissolved iron compartments, based on the sources of supply, were added to Kawamiya et al.’s(1995) model (KKYS) to create our ecosystem model (KKYS-Fe). We hypothesized that four processes supply iron to sea water: atmospheric loadings from Northeastern Asia, input from the Amur River, dissolution from sediments and regeneration by zooplankton and bacteria. We simulated 1year, from 1 January, 2001 to 31 December, 2001, using both KKYS-Fe and KKYS. KKYS could not reproduce the surface nitrate distribution after the spring bloom, whereas KKYS-Fe agreed well with observations in the northwestern Pacific because it includes iron limitation of phytoplankton growth. During the spring bloom, the main source of iron at the sea surface is from the atmosphere. The contribution of riverine iron to the total iron utilized for primary production is small in the Okhotsk Sea. Atmospheric deposition, the iron flux from sediment and regeneration of iron in the water column play important roles in maintaining high primary production in the Okhotsk Sea.
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Takeshi Okunishi
Michio J. Kishi
Toshihiko Yamashita
spellingShingle Takeshi Okunishi
Michio J. Kishi
Toshihiko Yamashita
, Yukiko Ono 4
author_facet Takeshi Okunishi
Michio J. Kishi
Toshihiko Yamashita
author_sort Takeshi Okunishi
title , Yukiko Ono 4
title_short , Yukiko Ono 4
title_full , Yukiko Ono 4
title_fullStr , Yukiko Ono 4
title_full_unstemmed , Yukiko Ono 4
title_sort , yukiko ono 4
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.623.3227
http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf
geographic Okhotsk
Pacific
geographic_facet Okhotsk
Pacific
genre okhotsk sea
genre_facet okhotsk sea
op_source http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.623.3227
http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/32364/1/okunishi07CSR.pdf
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