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首页> 外文会议>Ecosystems and Sustainable Development IV >A 3-D coupled physical-biological model and its application to the 1996 spring plankton bloom in Prince William Sound, Alaska
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A 3-D coupled physical-biological model and its application to the 1996 spring plankton bloom in Prince William Sound, Alaska

机译：3-D耦合物理生物学模型及其在阿拉斯加威廉王子湾1996年春季浮游生物开花中的应用

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摘要

A 3-D coupled biological-physical model of Prince William Sound was developed to simulate the spring plankton bloom of 1996. The physical model is based on a 3-D circulation model under forcing of monthly heat flux, freshwater discharge of a line source, daily wind, Alaska Coastal Current (ACC) inflow/outflow, and tide. The biological model consists of four compartments: nutrients, phytoplankton, zooplankton and detritus. A mixed layer model is introduced to calculate vertical mixing caused by wind stirring and surface cooling. The simulated spring phytoplankton bloom starting and ending time and its magnitude compared well with field observations at several layers from 0 m to 50 m at Station AFK in the sound. In the western sound, the bloom occurred earlier, but was less intensive; and the bloom depth was shallower than in the east. In the central, eastern sound and Montague Strait, the plankton blooms occurred following the bloom in the western sound, but were stronger and deeper. Thus, the phytoplankton bloom lasted longer. There was a shallower, but higher phytoplankton concentration core in the eastern sound at the beginning of the bloom, which disappeared later as the circulation changed.
机译：开发了Prince William Sound的3D耦合生物物理模型，以模拟1996年春季浮游生物的开花。该物理模型基于3D循环模型，该模型在强迫每月热通量，线源淡水排放，每日风，阿拉斯加沿海海流（ACC）流入/流出和潮汐。生物学模型包括四个部分：营养物，浮游植物，浮游动物和碎屑。引入混合层模型以计算由风搅拌和表面冷却引起的垂直混合。在声音的AFK站，从0 m到50 m的几层中，模拟的春季浮游植物开花的开始和结束时间及其幅度与实地观测相比较。在西方声音中，花开得较早，但强度较低。水华的深度比东部要浅。在中部，东部和蒙塔格海峡，浮游生物的开花继西方声音的爆发之后出现，但更强，更深。因此，浮游植物的开花持续时间更长。开花开始时，东部声音中的浮游植物浓度核心较浅，但较高，后来随着环流的变化而消失。

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