Role of sea ice on satellite-observed chlorophyll-a concentration variations during spring bloom in the East/Japan sea

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Date: Jan. 2014
Publisher: Elsevier B.V.
Document Type: Article
Length: 338 words

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Abstract :

To link to full-text access for this article, visit this link: Byline: Kyung-Ae Park, Chang-Keun Kang, Kyung-Ryul Kim, Ji-Eun Park Abstract: The relationship between the spring bloom along the Primorye coast and the sea ice of the Tatarskiy Strait in the northern region of the East/Japan Sea, a semi-enclosed marginal sea in the North Pacific, was investigated using the ten-year SeaWiFS chlorophyll-a concentration data and DMSP/SSMI sea ice concentration data from 1998 to 2007. Year-to-year variations in the chlorophyll-a concentrations in the spring were positively correlated with those of the sea ice concentrations in the Tatarskiy Strait in the previous winter with a correlation coefficient of 0.77. Abrupt increases in nutrients, essential for the spring bloom in the upper ocean during spring, were supplied from sea ice-melted waters. Time series of vertical distributions of the nutrients indicated that phosphate concentrations were extremely elevated in the upper ocean (less than 100m) without any connection to high concentrations in the deep waters below. The water mass from sea ice provided preferable conditions for the spring bloom through changes in the vertical stratification structure of the water columns. Along-coast ratios of stability parameters between two neighboring months clearly showed the rapid progression of the generation of a shallow pycnocline due to fresh water originating from sea ice. This study addressed the importance of the physical environment for biogeochemical processes in semi-enclosed marginal seas affected by local sea ice. Author Affiliation: (a) RIO/Department of Earth Science Education, Seoul National University, Seoul, Korea (b) Ocean Science and Technology Institute, Pohang University of Science and Technology, Gyungbuk, Korea (c) RIO/School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea (d) Department of Science Education, Seoul National University, Seoul, Korea Article History: Received 18 January 2013; Revised 6 September 2013; Accepted 8 September 2013 Article Note: (footnote) [star] This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-No Derivative Works License, which permits non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Gale Document Number: GALE|A353941543