论文标题
对孟加拉湾地区的海洋酸化的季节性变异性和管理因子进行建模
Modeling the seasonal variability and the governing factors of Ocean Acidification over the Bay of Bengal region
论文作者
论文摘要
孟加拉湾（BOB）是河流和降水量的淡水通量的高度接受者，使该地区进行了强烈分层。强分层导致较厚的屏障层形成，从而抑制垂直混合，使该区域成为低生产力区域。在本研究中，我们试图对BOB区域的pH进行建模，并了解不同管理因素的作用，例如海面温度（SST），海面盐度（SSS），溶解的无机碳（DIC）和总碱度（TALK）在海面pH的季节性中。我们运行一组灵敏度实验，以了解每个管理因素的作用。结果表明，SST，SSS和DIC是影响海面pH值的主要驱动因素，而谈话起着缓冲作用。 SST和DIC始终发现彼此相反。季风前季节（MAM）已证明所有车手的贡献几乎相等。在季风前季节，SST和DIC通过谈话和SSS平衡。 SSS的作用在下半年显着占主导地位。 SST和SSS都应对DIC在西南季风季节的作用。强分层在调节BOB区域的pH值中起着至关重要的作用。在地下层中形成的屏障层的厚度对海面pH有积极影响。发现北部鲍勃比南部鲍勃更碱性。我们的研究强调了鲍勃地区海洋酸化的复杂性，与世界海洋的另一部分相比。
The Bay of Bengal (BoB) is a high recipient of freshwater flux from rivers and precipitation, making the region strongly stratified. The strong stratification results in a thick barrier layer formation, which inhibits vertical mixing making this region a low-productive zone. In the present study, we attempt to model the pH of the BoB region and understand the role of different governing factors such as sea-surface temperature (SST), sea-surface salinity (SSS), dissolved inorganic carbon (DIC), and total alkalinity (TALK) on the seasonality of sea-surface pH. We run a set of sensitivity experiments to understand the role of each of the governing factors. The results show that the SST, SSS, and DIC are the principal drivers affecting the sea-surface pH, while TALK plays a buffering role. The SST and DIC are consistently found to be opposite to each other. The pre-monsoon season (MAM) has shown to have an almost equal contribution from all the drivers. In the pre-monsoon season, the SST and DIC are balanced by TALK and SSS. The role of SSS is significantly dominant in the second half of the year. Both SST and SSS counter the role of DIC in the southwest monsoon season. The strong stratification plays an essential role in modulating the pH of the BoB region. The thickness of the barrier layer formed in the sub-surface layers positively affects the sea-surface pH. The northern BoB is found to be more alkaline than the southern BoB. Our study highlights the complexity of ocean acidification in the BoB region compared to the other part of the world ocean.
