VARIABILITY OF THE COASTAL CURRENT AND NUTRIENT PATHWAYS IN THE EASTERN GULF OF MAINE
VARIABILITY OF THE COASTAL CURRENT AND NUTRIENT PATHWAYS IN THE EASTERN GULF OF MAINE
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DOI：
10.1357/002224089785076299
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发表时间：
1989-05-01
影响因子：
0.5
通讯作者：
TOWNSEND, DW
中科院分区：
文献类型：
--
作者：
BROOKS, DA;TOWNSEND, DW
缅因州东部沿海洋流向西南方向流动，将寒冷和营养丰富的海水从潮汐翻腾的东部海湾带到中西部海湾，那里的夏季海水更温暖，分层程度更高。洋流通常在到达靠近中部海岸的佩诺斯科特海湾之前转向近海，该海湾的位置在很大程度上取决于约旦盆地密集斜坡水的分布。坡度水以大西洋深层流入的形式进入墨西哥湾，因此在决定向墨西哥湾内陆输送营养物质的强度、方向和时间方面发挥了重要作用。本文利用1987年8月的两个航次的资料，研究了墨西哥湾沿岸流的变异性和营养物质的输送，特别是揭示了深坡水、沿岸流的结构及其可能对墨西哥湾生物生产力的重要影响之间的重要物理联系。
The eastern Maine coastal current flows southwestward, carrying cold and nutrient-rich waters along the coast from the tidally stirred eastern gulf toward the central and western gulf, where in summer the waters are warmer and more stratified. The current typically turns offshore before reaching Penobscot Bay, near the central coast, at a location determined largely by the distribution of dense slope water in Jordan Basin. The slope water, which enters the gulf as a deep inflow from the Atlantic Ocean, thus plays a major role in determining the intensity, direction and timing of the delivery of nutrients to the interior gulf. In this paper, we use data from two cruises in August 1987 to examine the variability and nutrient transport of the coastal current, especially to show the important physical linkages between the deep slope water, the structure of the coastal current, and its likely significant effect on biological productivity in the gulf.