Tropical storms (TS) are important drivers of short-term changes and affects the coastal and marine environment. Based on in situ observational data from four locations in the coastal area of the northern Beibu Gulf and satellite data, we analyzed the changes in temperature, salinity, and turbidity during the transit of TS “Wipha” in 2019 and assessed the environmental factors controlling chlorophyll a concenteation (Chl-a) increases in the coastal area. Our results showed that in the coastal area, the growth of phytoplankton after the TS was mainly controlled by the nutrient and light availability. The increased input of freshwater by TS, including direct inputs from rainfall and increased river discharge, reduced the salinity. The decrease in salinity may indicate an increased input of nutrient-rich freshwater at all four stations (nutrients input: S1>S2>S3>S4). Nutrient concentration at S1, S2, and S3 implied by salinity was high, but that at S4 was limited. The shorter recovery time of turbidity after TS indicated the faster improvement of light conditions in this area [recovery time: S4 (2 days)< S1 (3 days)< S3 (5 days)< S2 (10 days)]. The high turbidity associated with poor light penetration was an important factor limiting phytoplankton growth at station 2, with a slow recovery of the turbidity to pre-TS levels. The rapid recovery of the turbidity to the pre-TS levels at S1, S3, and S4 suggested good light conditions soon after the TS, and probably led to a significant increase in Chl-a after the TS ([Chl-a]: S1>S3>S4). The less of an increase of Chl-a at S4 was not only related to nutrient restriction but also related to weak mixing of the water column, while the least significant decrease in the SST at S4 implied that the enhancing mixing after TS was limited.

热带风暴 (TS) 是短期变化的重要驱动因素，并影响沿海和海洋环境。基于原位通过北部湾北部沿海地区四个地点的观测数据和卫星数据，我们分析了 2019 年 TS“Wipha”过境过程中温度、盐度和浊度的变化，并评估了控制叶绿素 a 浓度的环境因素（Chl -一个) 沿海地区增加。我们的研究结果表明，在沿海地区，TS 后浮游植物的生长主要受养分和光照有效性的控制。TS增加的淡水输入，包括来自降雨的直接输入和增加的河流流量，降低了盐度。盐度的降低可能表明所有四个站点都增加了营养丰富的淡水输入（营养输入：S1>S2>S3>S4）。盐度所暗示的 S1、S2 和 S3 的营养浓度很高，但 S4 的营养浓度有限。TS后浊度恢复时间越短，表明该区域光照条件改善越快[恢复时间：S4（2天）<S1（3天）<S3（5天）<S2（10天）]。与光穿透性差相关的高浊度是限制第 2 站浮游植物生长的重要因素，浊度缓慢恢复到 TS 之前的水平。浊度在 S1、S3 和 S4 迅速恢复到 TS 前水平表明 TS 后不久光照条件良好，并可能导致 Chl-显着增加一个在 TS 之后（[Chl-一个]：S1>S3>S4)。Chl-的增加越少一个在 S4 时，不仅与养分限制有关，而且与水柱的弱混合有关，而 S4 时 SST 的最不显着下降意味着 TS 后的增强混合受到限制。