Phytoplankton blooms near the Pearl River Estuary induced by Typhoon Nuri
Phytoplankton blooms near the Pearl River Estuary induced by Typhoon Nuri
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台风“努里”引发珠江口附近浮游植物大量繁殖
DOI：
10.1029/2009jc005384
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发表时间：
2009-12
期刊：
影响因子：
--
通讯作者：
Zhao, hui
中科院分区：
文献类型：
--
作者：
Wang,Dongxiao;Tang,Danling;Zhao, hui
利用遥感和现场观测资料，对2级台风努里在南海引发的两次浮游植物水华进行了研究。近海三角形浮游植物水华台风过后1周，沿努里路径沿着东沙群岛附近出现叶绿素a（Chl a）> 0.5 mg m（-3）的强降水，向东南偏北至18 ° N;南海近岸浮游植物的增加（Chl a > 1.5 mg m（-3））和总悬浮泥沙含量的增加主要表现在南海沿岸的PRE西南部。台风过后，该地区特别是近海还出现了海面降温（约3 ℃）、大风（> 20 m s（-1））和暴雨（> 100 mm d（-1））。此外，在台风过境期间，从PRE的淡水排放量增加了五倍，与8月的气候相比，在近岸水华区。近岸水华的形成可能是由于台风前浪和有利海流的增加，以及台风风驱动的混合、上升流和近惯性共振。近海水华可能是由台风强风和岛屿地形引起的上升流和卷吸作用触发的。本研究表明，一个台风可以通过诱导营养盐丰富的水从珠江口输送到近海和底层到表面的浮游植物生物量的营养。
The authors investigate two phytoplankton blooms near or off the Pearl River Estuary (PRE) triggered by Category 2 Typhoon Nuri with moderate wind intensity in the South China Sea using both remotely sensed and in situ data sets. An offshore triangular phytoplankton bloom (chlorophyll a (Chl a) > 0.5 mg m(-3)) was observed near Dongsha Archipelago along Nuri's track, prolongating southeastward to 18 degrees N 1 week after the typhoon's passage; a stronger nearshore phytoplankton increase (Chl a > 1.5 mg m(-3)) with high total suspended sediment appeared southwest of the PRE from the coast toward the South China Sea. After the typhoon's passage, sea surface cooling (similar to 3 degrees C), strong wind (> 20 m s(-1)), and heavy rainfall (> 100 mm d(-1)) were also observed in the region, especially offshore. In addition, the freshwater discharge from the PRE during the typhoon passage increased fivefold in comparison with the August climatology in the nearshore bloom region. The nearshore bloom was probably due to the increased discharge from the PRE and favorable current, as well as mixing, upwelling, and near-inertial resonance driven by strong typhoon wind. The offshore bloom may be triggered by upwelling and entrainment induced by strong typhoon wind and the topography of islands and islets. The present study suggests that one typhoon may nourish phytoplankton biomass by inducing transport of nutrient-rich water from both the Pearl River Estuary to offshore and the sublayer to surface.
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DOI：
10.1016/0146-6291(77)90499-4
发表时间：
1977-08
期刊：
Deep Sea Research
影响因子：
--
作者：
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通讯作者：
M. Takahashi;D. Seibert;W. Thomas
影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
N. Revelante;M. Gilmartin
DOI：
10.1029/2009eo490003
发表时间：
2009-12
期刊：
Eos, Transactions American Geophysical Union
影响因子：
--
作者：
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通讯作者：
R. Showstack
影响因子：
5.2
作者：
Yi Chang;Hsiou‐Ting Liao;Ming-An Lee;Jui-Wen Chan;W. Shieh;Kuo-Tien Lee;Guangjie Wang;Y. Lan
通讯作者：
Yi Chang;Hsiou‐Ting Liao;Ming-An Lee;Jui-Wen Chan;W. Shieh;Kuo-Tien Lee;Guangjie Wang;Y. Lan