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Flood impact assessment using field investigations and post-flood survey
Journal of Earth System Science ( IF 1.9 ) Pub Date : 2021-07-30 , DOI: 10.1007/s12040-021-01657-4
Aleena Elsa Mathew 1 , S Sujith Kumar 1 , G Vivek 1 , M Iyyappan 1 , R Karthikaa 1 , P Dinesh Kumar 1 , S K Dash 1 , G Gopinath 1 , Tune Usha 1
Affiliation  

Abstract

Kerala, located in the southwest part of India experienced heavy flooding during 2018. A post-flood field survey was conducted by National Centre for Coastal Research (NCCR), Chennai to study the flood. The survey was conducted using in-situ measurement and fed to NCCR-Geo surveyor app. The app is indigenous and transfers the data including flood depth and geo-tagged photos to NCCR server. The survey also focuses on the peoples experience at the time of flood of central and southern parts of Kerala with a total of 206 respondent data. The district-wise survey results are presented. From the study, it was concluded that Pampa River basin and Periyar River basin were severely affected and respondents reported sudden rise in the water levels in locations near to the river banks. Major river banks of the state overflowed and destroyed houses, roads, etc. The field survey points towards long term solutions including advanced flood warning system to create an effective mitigation and preparedness plan to reduce the risk from the fury of future floods and for a resilient community.

Highlights

  • The post-flood field survey was conducted for Kerala floods of 2018. A team from NCCR visited the flood affected central and southern parts of Kerala.

  • NCCR Geo-Surveyor app built in-house was used for the survey. A Geo-tagged image together with the flood depth is stored in transferred online into the NCCR server.

  • Presented the district-wise field survey result in the paper. It was noticed that the flood intensified and affected millions due to unscientific way of dam operations, which affected infrastructure and lives of many living on the banks of the river.

  • Kerala need to consider long-term solutions like early flood warning systems, conservation of environment and proper engineered constructions near to the river banks.



中文翻译:

使用现场调查和洪水后调查进行洪水影响评估

摘要

位于印度西南部的喀拉拉邦在 2018 年经历了大洪水。 钦奈国家海岸研究中心 (NCCR) 进行了洪水后实地调查,以研究洪水。调查采用原位测量并馈送到 NCCR-Geo 测量员应用程序。该应用程序是本地应用程序,可将包括洪水深度和地理标记照片在内的数据传输到 NCCR 服务器。该调查还重点关注喀拉拉邦中部和南部地区人民在洪水时的经历,共有206名受访者数据。呈列各区调查结果。研究得出的结论是,潘帕河流域和佩里亚尔河流域受到严重影响,受访者报告说靠近河岸的地方水位突然上升。该州的主要河岸泛滥并毁坏房屋、道路等。实地调查指出了长期解决方案,包括先进的洪水预警系统,以制定有效的缓解和备灾计划,以降低未来洪水肆虐的风险,并建立有弹性的社区。

强调

  • 洪水后实地调查是针对 2018 年喀拉拉邦洪水进行的。 NCCR 的一个团队访问了受洪水影响的喀拉拉邦中部和南部地区。

  • 内部构建的 NCCR Geo-Surveyor 应用程序用于调查。地理标记图像与洪水深度一起存储在在线传输到 NCCR 服务器中。

  • 在论文中介绍了分区实地调查的结果。人们注意到,由于不科学的水坝运营方式,洪水加剧并影响了数百万人,影响了河岸上许多人的基础设施和生活。

  • 喀拉拉邦需要考虑长期解决方案,如早期洪水预警系统、环境保护和靠近河岸的适当工程建筑。

更新日期:2021-07-30
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