He Ruoying, McGillicuddy Dennis J
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University.
Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution.
J Geophys Res. 2008 Jul;113(C7). doi: 10.1029/2007JC004601. Epub 2008 Jul 26.
An extensive bloom occurred along the coast of the Gulf of Maine in late spring and early summer, 2005. To understand the physical aspects of bloom's initiation and development, in-situ observations from both a gulf-wide ship survey and the coastal observing network were used to characterize coastal circulation and hydrography during that time period. Comparisons between these in-situ observations and their respective long term means revealed anomalous ocean conditions during May 2005: waters were warmer and fresher gulf-wide due to more surface heating and river runoff; coastal currents were at least two times stronger than their climatological means. Surface winds were also anomalous in the form of both episodic burst of northeaster storms and downwelling favorable mean condition. These factors may have favored more vigorous along-shore transport and near shore aggregation of toxic cells (a red tide) in 2005.
2005年春末夏初，缅因湾沿岸出现了大规模的藻华。为了解藻华开始和发展的物理因素，利用一次全湾范围的船舶调查和沿海观测网络的现场观测，来描述该时间段内的沿岸环流和水文特征。这些现场观测结果与它们各自的长期平均值的比较显示，2005年5月海洋状况异常：由于更多的表层加热和河流径流，全湾的海水更温暖、更淡；沿岸海流比其气候学平均值至少强两倍。表层风也异常，表现为东北风暴的间歇性爆发和有利于下沉的平均状况。这些因素可能有利于2005年更强劲的沿岸输运和有毒细胞（赤潮）在近岸的聚集。
