Tropical Cycloninduced Storm Surge Hazard Map
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80,000 85,000 90,000 95,000 100,000 105,000 110,000 115,000 120,000 500,000 Karainagar West 500,000 Navaly Tavadi Karainagar East Araly East Urindimunai Kayts West Kondavil Nanthavil Araly South Uyarapulam Kayts East Paratimunai Eluvaltivu Anaicottai NALLUR KAYTS Kokkuvil Thirunelvely West VAnnarpannai North West Thirunelvely East Karampan Ariyarmadam Vannarpannai South West Kanthermadam KAYTS Navanthurai Anaipanthy Narantanai Analaitivu Vannarpannai South East ,000 KAYTS JAFFNA 495 495,000 Chiviyateru West Puliyankoodai Saravanai Chundikkuli Karaiyur Kannaodai Colombuthurai West Pasayur Suruvil Velanai East Velanai West VELANAI Velanai East Velanai West Mankumpan 5 Cheddikadu Eachchamunai ,000 490 490,000 Allaipliddy Kaluthaippiddy Periya Iruppiddy VELANAI Thanippdnai Koraikkundu Mandaitivu VELANAI Manchalkarichchan Nainativu Puliyadithurai Ariyaripulam Madathuveli Sinna Iruppiddy Tharmakundu Parandathoddam Malayadi Navathampirumkerni Parandathoddam Perunkandu North Kurichchikadu Pungudutivu Parachivell VELANAI Nadukurichchi Perunkadu West Perunkadu South ,000 485 Valln 485,000 Sothithelvu Upputhalanai Veeramalai Seerampalai ,000 480 480,000 Thalaithurai Marelithurai Kerni Thomaiyar Kudavili 5 Matha Iravalai Uraniyar Theethakarai Alamavanam DELFT Thotpaddaikali Sappadalai Seekiriyampallum Iruvill Maruthandivaddai Kiraveddi Mawalic (Part) Navaratna Singham 5 Thoddaram 475,000 475,000 mN 80,000 mE 85,000 90,000 95,000 100,000 105,000 110,000 115,000 120,000 MAP BASE LEGEND Topography: ASTER digital elevation model and topographic base maps of scales 1:5,000 and 1:10,000 prepared by the Scale 1 : 50,000 TROPICAL CYCLONINDUCED STORM SURGE Main Road EEE Province Boundary Department of Survey, Sri Lanka. 20 10 0 20 40 60 80 100 HAZARD MAP - SHEET 03 Bathymetry: GEBCO data of 30 arc-second resolution supplemented with data from nautical charts. Minor Road EEEE District Boundary Other Roads Kilometre MAP INFORMATION LIMITATIONS µ D.S.Div. Boundary Railway One limitation is that the resolution of the numerical computations is no greater or more accurate than the bathymetric and Balangoda Village Name Origin of the grid system is 200,000 metres South and 200,000 metres West of Pidurutalagala. METHOD OF PREPARATION topographic data used. The resolution of the model also constrains its ability to resolve some small-scale features of the onshore LOCATION Storm surge inundation shown on the map is based on a static projection of storm surge levels near the shoreline derived from a terrain including narrow waterways, lakes and interiors of lagoons and no warranties are made regarding the accuracy of the map Bridge / River / Stream / Canal NAGODA D.S.Div. Name computer model of tropical cyclone induced forcing on the sea-surface. The simulated storm surge corresponds to a probable nor the data from which the map was derived. The present hazard analysis is essentially deterministic, and therefore, this map Strom Surge Map (Wind Speed 270 km/h) 10 Bathymetrical Contour / Value cyclone of maximum wind speed 270 km/h originating in the Bay of Bengal. The mean recurrence interval for this cyclone scenario includes no information about the probability of any cyclone generated storm surge affecting any area within a specific period of Tank Published by is expected to be of the order of 300 years. Given the considerable uncertainty on the probable track of the cyclone including its time. The non-linear interaction of the tide and surge is not included in the numerical simulations; however, a conservative location of landfall, storm surge simulations were carried out for a large set of synthetic tracks that are in statistical agreement with 01 Index Contour superposition of the high tide has been incorporated in keeping with the purpose of hazard mapping. While this storm surge hazard Temple the historical database in order to derive a composite of the maxima of surge levels. The model used is MIKE21-HD of the Danish 02 Coastal Research and Design, map has been compiled with the best currently available scientific information and base data, users are invited to notify JAFFNA 20 Intermediate Contour/ Value Hydraulic Institute (DHI), which solves the vertically integrated, non-linear equations of conservation of mass and momentum using CCCRMD/DMC of any map discrepancies. Kovil Coast Conservation and Coastal Resource Management Department finite difference numerical schemes. A supplementary parametric module in MIKE21 has been employed to compute the space- Supplimentery Contour with the assistance from DISCLAIMER æ Church and time-varying wind and pressure fields corresponding to the cyclone scenario. The bathymetric and topographic grids were Disaster Management Centre adjusted to “Mean High Water”, representing a conservative sea level for the intended use of the storm surge hazard mapping. The The Coast Conservation and Coastal Resource Management Department (CCCRMD), The Engineering Design Centre (EDC) of Storm Surge Levels (Low) 04 Mosque computed storm surge inundation is in general shown on the map in three color-coded depth ranges: less than 0.5, 0.5–2, and the University of Peradeniya, The Disaster Management Centre (DMC), and the United Nations Development Programme (UNDP) Sri Lanka shall not be liable under any circumstances for any direct, indirect, special, incidental or consequential damages with respect to any greater than 2 metres, corresponding to low, medium and high levels of the hazard, respectively. JAFFNA 03 ^ Police Station May 2012 claim by any user or any third party on account of or arising from the use of this map. School Storm Surge Levels (Medium) PURPOSE OF THIS MAP No part of this map may be reproduced in any form without prior written permission from the publishers. www.coastal.gov.lk This storm surge hazard map is intended for use in planning of coastal disaster risk management strategies and in public education 06 G KILINOCHCHI Hospital and awareness activities only. This map, and the information presented therein, is not a legal document and should not be used for Historical Site Storm Surge Levels (High) any regulatory purpose. 07 08 Railway Station Cartographical Enhancement by The Survey Department of Sri Lanka.