当前位置: X-MOL 学术Environ. Earth Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Holistic approach to assess the coastal vulnerability to oceanogenic multi-hazards along the coast of Andhra Pradesh, India
Environmental Earth Sciences ( IF 2.8 ) Pub Date : 2021-09-18 , DOI: 10.1007/s12665-021-09920-z
R. S. Mahendra 1, 2 , P. C. Mohanty 1 , P. A. Francis 1 , Sudheer Joseph 1 , T. M. Balakrishnan Nair 1 , T. Srinivasa Kumar 1
Affiliation  

The coastal vulnerability to multi-hazard study aims to assess the coastal zones of Andhra Pradesh that really are vulnerable to various oceanogenic hazards. Using high-resolution coastal elevation, the maximum extent of coastal inundation during extreme high waves of cyclones & tsunamis, shoreline change, and sea-level rise can be computed. Vulnerability impact up to the village level was assessed based on future projection (return period) of multi-hazard impact using a holistic approach with geospatial techniques. The current study results revealed that 706 villages and 8 towns that are completely falling under CMZ are at risk. A total of 9682 km2 of coastal zones of Andhra Pradesh coast are exposed and prone to inundation as recorded under CMZ. Krishna, Godavari, Guntur and Prakasham districts comprise 70% of the total CMZ area are large low-lying areas exposed to ocean hazards. CMZ area along Andhra Pradesh coast recorded a significant negative correlation of − 0.65 with coastal elevation and a positive correlation of 0.34 with coastal exposure index. Shoreline change assessed from 1972 to 2019 across the study area reveals the 7% under high erosion along the headland and low-lying area of Krishna-Godavari delta. The outputs and maps produced in this study provide vital input for coastal disaster management and necessary policy interventions.



中文翻译:

评估印度安得拉邦沿海沿海对海洋多种灾害的脆弱性的整体方法

沿海多灾害脆弱性研究旨在评估安得拉邦的沿海地区,这些地区确实容易受到各种海洋灾害的影响。使用高分辨率海岸高程,可以计算在飓风和海啸的极端高浪、海岸线变化和海平面上升期间海岸淹没的最大程度。根据多灾种影响的未来预测(重现期),使用地理空间技术的整体方法评估了村级的脆弱性影响。目前的研究结果显示,完全属于CMZ的706个村庄和8个镇处于危险之中。共 9682 公里2根据 CMZ 的记录,安得拉邦海岸的沿海地区暴露并容易被淹没。Krishna、Godavari、Guntur 和 Prakasham 地区占 CMZ 总面积的 70%,是暴露于海洋灾害的大型低洼地区。沿安得拉邦海岸的 CMZ 区域与海岸海拔呈显着负相关 - 0.65,与海岸暴露指数呈 0.34 正相关。从 1972 年到 2019 年评估的整个研究区域的海岸线变化显示,克里希纳-戈达瓦里三角洲的岬角和低洼地区的高侵蚀率为 7%。本研究中产生的输出和地图为沿海灾害管理和必要的政策干预提供了重要的输入。

更新日期:2021-09-19
down
wechat
bug