Coastal Management Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait.
Coastal Management Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait.
Mar Pollut Bull. 2019 Dec;149:110564. doi: 10.1016/j.marpolbul.2019.110564. Epub 2019 Sep 5.
Recent extreme hydrological events, such as high rainfall and storms, have been linked to climate change worldwide due to their relatively uncommon trends, which are generally described as having varying frequencies and higher intensities. Similar extreme rainfall trends were observed in the northwest Arabian Gulf during the 2018-2019 season. Heavy rainfall events have triggered high discharges in the river of Shatt Al-Arab, where, prior to these events, the discharge rate has exhibited a declining trend over the past 40 years. Shatt Al-Arab provides various physical, chemical, and biological functions in the region. In this study, some recent and extensive measurements of salinity and post-processed satellite images of chlorophyll-a in the northwest Arabian Gulf were recorded to assess the response of the region to the higher discharges. The results indicated that the salinity decreased significantly during and after the rainfall events in response to the higher discharges from Shatt Al-Arab. The effects of higher discharges extended over most of Kuwait's coastline, including Kuwait Bay. The chlorophyll-a distributions doubled after the extreme events, emphasising the effects of Shatt Al-Arab. Collectively, the results indicated that the discharge from Shatt Al-Arab during the extreme event exceeded 1400 m/s, while, in the previous seasons, it rarely exceeded 80 m/s. The higher discharge levels of discharge would result in various changes in ecology at multiple levels due to the sudden and reversing shift in the hydro-environmental processes.
最近的极端水文事件，如强降雨和风暴，由于其相对罕见的趋势，与全球气候变化有关，这些趋势通常被描述为具有不同的频率和更高的强度。在 2018-2019 季节，阿拉伯湾西北部也观察到了类似的极端降雨趋势。强降雨事件导致了阿拉伯河的高流量，在此之前，在过去的 40 年里，流量一直呈下降趋势。阿拉伯河在该地区具有多种物理、化学和生物功能。在这项研究中，记录了阿拉伯湾西北部最近的一些广泛的盐度测量和叶绿素-a 的卫星图像后处理，以评估该地区对更高流量的反应。结果表明，在阿拉伯河的高流量期间和之后，由于来自阿拉伯河的更高流量，盐度显著降低。更高流量的影响延伸到科威特大部分海岸线，包括科威特湾。在极端事件之后，叶绿素-a 的分布增加了一倍，强调了阿拉伯河的影响。总的来说，结果表明，在极端事件期间，阿拉伯河的流量超过了 1400 m/s，而在前几个季节，它很少超过 80 m/s。由于水-环境过程的突然和逆转变化，更高的流量水平将导致多个层次的生态发生各种变化。
