DOI: 10.1007/s11069-020-04082-w
论文题名: An early warning system for inundation forecast due to a tropical cyclone along the east coast of India
作者: Mandal A.K. ; Ramakrishnan R. ; Pandey S. ; Rao A.D. ; Kumar P.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 103, 期: 2 起始页码: 2277
结束页码: 2293
语种: 英语
中文关键词: Coastal inundation
; Coastal vulnerability
; Forecast
; Tropical cyclone
英文关键词: atmospheric circulation
; bathymetry
; Cartosat
; coastal zone
; digital elevation model
; early warning system
; nearshore dynamics
; RADARSAT
; Shuttle Radar Topography Mission
; topography
; tropical cyclone
; weather forecasting
; India
英文摘要: Cyclone-induced coastal inundation along the east coast of India is simulated using the state-of-the-art advanced circulation model coupled with Simulating Waves Nearshore model. Bathymetry of the computational domain is prepared by integrating digital coastal bathymetric chart with global digital elevation model (DEM) ETOPO-2. Topography of the coastal land region is created by merging data from the fine resolution airborne DEM with that from the Indian satellite CARTOSAT-2 derived CARTO2 DEM and Shuttle Radar Topography Mission DEM. The major shortcomings of coastal inundation simulation due to inaccurate representation of intricate networks of river, creeks and lagoons have been overcome by careful description of the critical coastal wetland features influencing the landward inundation of storm surge in the present work. Experimental simulation of coastal inundation is carried out for the Phailin (2013) and Hudhud (2014) cyclones. The computed surge residual for Phailin and Hudhud are compared with available tide-gauge observations, which have resulted in root mean square error of 0.06 m and 0.11 m, respectively. The simulations show realistic coastal inundations, which are compared with the Indian meteorological department records. The model set up is then used to generate forecast of coastal inundation due to Titli (2018) cyclone with a lead period of 48 h. The Weather Research and Forecasting model forecast winds at 5 km spatial resolution are used as the primary forcing parameter. The coastal inundation forecast due to Titli cyclone is validated by assessing the spatial coherency of simulated inundation with the water logged area demarcated from synthetic-aperture radar image taken from Canadian satellite RADARSAT-2. The results clearly indicate acceptability of the model performance with a potential to predict the coastal inundation during a cyclone for operational early warning. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168614
Appears in Collections: 气候变化与战略
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作者单位: EPSA, Space Applications Centre, ISRO, Ahmedabad, 380015, India; Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, 110016, India
Recommended Citation:
Mandal A.K.,Ramakrishnan R.,Pandey S.,et al. An early warning system for inundation forecast due to a tropical cyclone along the east coast of India[J]. Natural Hazards,2020-01-01,103(2)