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首页> 外文期刊>Ocean & coastal management >Characterization and impact assessment of super cyclonic storm AMPHAN in the Indian subcontinent through space borne observations
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Characterization and impact assessment of super cyclonic storm AMPHAN in the Indian subcontinent through space borne observations

机译：通过空间寄生观测，印度次大陆超旋风风暴amphan的特征及影响评价

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摘要

Tropical cyclones can cause extensive damage in coastal regions as a result of high winds, storm tide, and intense rainfall. The West Bengal state in India was severely affected by a recent cyclonic storm 'Amphan' a 'super cyclone'with a high wind speed of above 220 km/h. The present study aimed to assess the impact of the cyclone Amphan in the potential impact zone covering the two states of India (Odisha and West Bengal) and the west coast of Bangladesh. The present study analyzed the land use land cover, rainfall variability, and potential storm surge along the cyclone track to assess the possible impact on the coastal landscape as well as community. The cyclone Amphan was formed in the Northern Indian Ocean near Equatorial Easterly wave over south Andaman Sea and adjoiningsoutheast Bay of Bengal (BoB) at 10 degrees N 87 degrees E on 16 May 2020 as deep depression and moved toward the north direction and had land fall at the coast of West Bengal on 20 May 2020 as an extremely severe cyclonic storm with the wind speed 155 km/h and central pressure of 960hpa.The cyclone devastated the coastal districts of West Bengal due to the high intensity of precipitation along with the extreme storm surge. About 100 people lost their lives and similar to 20 million people severely affected in West Bengal alone. Within the West Bengal state, around 7877 sq km area was observed under the potential storm surge zone. Cropland was observed as the most surge affected land cover with 5191 sq km area (65.9%), followed by wetlands (1635.2 sq km (20.75%) along with 38.34 sq km (0.48%)) of built up land under the potential surge impact zone The cyclone more severely affected the west Medinapur and South 24 Parganas, which were also the most affected by COVID-19 which resulted in slow evacuation, delay in medical support and concomitant increase in loss of life. The present study provided near real time cyclone hazard and risk assessment to help in prioritization of coastal mitigation and planning.
机译：热带气旋可引起在沿海地区广泛损害如大风，风暴潮，和强降雨的结果。在印度西孟加拉邦遭到严重最近的一次气旋风暴“Amphan”一个“超级cyclone'with高于220公里/小时高风速的影响。本研究旨在评估旋风Amphan的潜在影响区域覆盖印度（奥里萨邦和西孟加拉邦）的两种状态的影响和孟加拉国的西海岸。本研究分析了土地利用土地覆盖，降雨量的变化，并沿气旋路径潜在的风暴潮，评估以及社会上对沿岸景观可能造成的影响。形成于印度洋北部靠近赤道东风旋风Amphan波超南安达曼海，并在10度，东经87度Ë孟加拉adjoiningsoutheast湾（BOB）5月16日2020年深凹陷和向北方向移动，并有土地秋季在西孟加拉邦5月20日到2020年海岸与风速155公里每小时和960hpa.The气旋的中央压力极其严重风暴气旋摧毁西孟加拉邦沿海地区由于沉淀的与极端沿高强度风暴潮。大约有100人丧生，类似于2000万人严重西孟加拉邦单独影响。在西孟加拉邦的状态，是潜在的风暴潮区下观察周围7877平方公里的区域。农田被观察到的最潮影响的土地覆盖与下潜在的浪涌冲击建立土地（含38.34平方公里（0.48％）以及1635.2平方公里（20.75％）），5191平方公里的面积（65.9％），其次是湿地区里的旋风更严重影响了西部Medinapur和南方24个Parganas，这也是受影响最严重COVID-19这导致疏散缓慢，延迟医疗支持和生命损失随之增加。在沿海减灾和规划的优先提供接近实时的气旋危害和风险评估，以帮助本研究。

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