季风影响下北部湾颗粒无机碳浓度时空变化特征Influence of Monsoon on Temperal-spatial Distribution of Particulate Inorganic Carbon Concentrationtime in the Beibu Gulf
张淑平,王静,赵辉
摘要(Abstract):
以北部湾1999年7月至2009年6月11年的Sea Wi FS卫星遥感颗粒无机碳度资料为基础,研究北部湾颗粒无机碳浓度的时空分布特征,并初步探讨其可能的海洋动力调控机制。结果表明:在季节变化上,整个冬季北部湾颗粒无机碳浓度普遍较高,表现出季节平均最大值(0.012 mol·m-3),春季普遍较低(<0.004 mol·m-3),表现出全年最低水平;不同区域的最高水平出现的季节却有所不同:北部湾北部沿岸区域颗粒无机碳浓度在秋季较高,海南岛西部大部分海域在冬季较高,北部湾西北部沿岸则在夏季较高;在空间分布上,近岸海区的颗粒无机碳浓度明显高于海湾中央区域,北部湾北部海域普遍高于南部海域,东部海域高于西部海域。综合相关分析表明,北部湾颗粒无机碳浓度的这一时空分布特征主要同季风的强弱及风向有关,同时也可能与海表温度、流场(如沿岸上升流等)及陆地径流量等有关。
关键词(KeyWords): 北部湾;浮游植物;颗石藻;季风;颗粒无机碳
基金项目(Foundation): 国家自然科学基金资助项目(41276108,41006070)
作者(Author): 张淑平,王静,赵辉
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