Presentation is loading. Please wait.

Presentation is loading. Please wait.

Chanchai Vitoolpanyakij Director Department of Drainage and Sewerage Bangkok Metropolitan Administration Coastal Cities and Adaptation to Climate Change:

Published byAlice Jenkins Modified over 9 years ago

Similar presentations

Presentation on theme: "Chanchai Vitoolpanyakij Director Department of Drainage and Sewerage Bangkok Metropolitan Administration Coastal Cities and Adaptation to Climate Change:"— Presentation transcript:

1 Chanchai Vitoolpanyakij Director Department of Drainage and Sewerage Bangkok Metropolitan Administration Coastal Cities and Adaptation to Climate Change: Bangkok Study

2 Climate forcing on Bangkok Temperature changes Rainfall changes (local & upper catchment) Sea level rise Altered frequency of extreme events (storm surge) Compounding factors –Flat topography –Land subsidence

3 Local and global temperature vertical axis – Bangkok mean temperature change horizontal axis - global mean temperature change SERS (Special Report on Emissions Scenarios) Red - A1B, blue - B1 solid black line - least-square fit to all data points There is a robust linear relationship between local temperature increase and global mean temperature increase Source: Study on Climate Impact Adaptation and Mitigation in Asian coastal mega cities: Interim Report, JBIC, 2008

4 Local temperature trends Annual mean (1961- 2007) minimum and maximum temperatures in Bangkok is rising Overall, Thailand’s temperature rise show similar trend during the same period

5 Sea level rise Sea level rise (Increased coastal erosion, inundation of coastal wetlands, Increased risk of flooding and storm damage) Upper Gulf of Thailand (includes Bangkok) - most vulnerable to sea-level rise in Thailand Source: Tidal record analysis by the consultant. Yearly averaged values are shown here

6 Extreme events Storm surges and typhoons are not uncommon Most recent - typhoon LINDA (1997) –caused strong winds and heavy rainfall –significant wave height of 3-4 m was measured Altered frequency of extreme weather events (Increased waves and surges, Altered cyclone zones) MaeKlo ng Thac hin Chao Phraya Bangp akong Storm surge

7 A gloomy future! IPCC SERS (Special Report on Emissions Scenarios) Case Source: Study on Climate Impact Adaptation and Mitigation in Asian coastal mega cities: Interim Report, JBIC, 2008 Strom surge: 61 cm SERS caseTemperature change ( 0 C) Rainfall change (%) Sea level rise (cm) A1 FI1.9329 B11.2219

8 Altered flood risks.. Floods due to altered extreme precipitation from the upstream, and in the Bangkok area and tide are crucial for Bangkok

9 Future floods Max depth (30-yr return period) 2008 condition Max depth (30-yr return period) 2050 A1FI + Sea level rise + Land subsidence + Storm surge condition

10 Structural measures (1995 to present) Dike along both sides of the Chao Phraya River King’s Dike to protect BMA east side Dike to protect BMA west side Dike to protect BMA east side expansion (under construction) Dike to protect Suwanaphum International Airport Improve Pumping System +2.50 to +3.00 m.MSL +3.60 m.MSL Bangkok Existing and planned flood protection systems will not have enough capacity to cope with the climate change of A1FI scenario at the return period higher than 10 years

11 Structural measures – earlier proposal Large storage dam in the upper basin Barrage at the river mouth Diversion channel Coastal erosion protection – the shoreline on the west of the Chao Phraya River has been eroded about 5 to 10 m per year

12 Dikes, pumps, and drainage canal improvement Dike crest elevations in the future – include land subsidence of 0.20 m and free board of 0.30 m Three new pumping stations at Klong Khun Rat Phinit Chai, Phasi Charoen and Sanam Chai (capacities of 100, 400 and 200 m3/sec for flood at 30-year return period) Improvement of drainage canals Structural measures – current proposal

13 Maximum future inundation Inundated area - reduced from 744.34 to 362.14 km2 or decreased 382 km2 or 51.35%. Without proposed structural adaptation With proposed structural adaptation

14 Pursue shoreline protection of the western area of the Chao Phraya River (along the shoreline of Bang Khun Thien) as proposed by BMA (2007) Shoreline of the eastern area of the Chao Phraya River, raise the crest of the proposed rock-pile embankments along all the length of the embankments. The total estimated costs are 35,228 million baht to protect the against a 30-yr return period flood of the future Non structural measures (next presentation) Coastal erosion protection – current proposal

15 Thank you

Download ppt "Chanchai Vitoolpanyakij Director Department of Drainage and Sewerage Bangkok Metropolitan Administration Coastal Cities and Adaptation to Climate Change:"

Similar presentations

Climate Change Impact and Adaptation in Asian Coastal Cities A Joint Study by the World Bank, JICA and ADB.

Climate Change Impact and Adaptation in Asian Coastal Cities A Joint Study by the World Bank, JICA and ADB.
Greenhouse Gases and Climate Change: Global Changes and Local Impacts Anthony J. Broccoli Director, Center for Environmental Prediction Department of Environmental.

Greenhouse Gases and Climate Change: Global Changes and Local Impacts Anthony J. Broccoli Director, Center for Environmental Prediction Department of Environmental.
Economics of Climate Change Adaptation: Regional Consultation on Capacity Building Needs in Asia 24-26 Four Seasons Hotel, Bangkok Thailand ECONOMICS OF.

Economics of Climate Change Adaptation: Regional Consultation on Capacity Building Needs in Asia Four Seasons Hotel, Bangkok Thailand ECONOMICS OF.
Outline Global Climate Change Projections Local Climate Change Observations 1998 Flood at NASA ARC Anticipated Impacts of Climate Change Suggested Adaptation.

Outline Global Climate Change Projections Local Climate Change Observations 1998 Flood at NASA ARC Anticipated Impacts of Climate Change Suggested Adaptation.
1 Climate Change, Poverty Eradication Presented by Omar F sami ID 01276982 100/f Feb 22,2012 U MASS BOSTON UNIVERSITY Class Presentation.

1 Climate Change, Poverty Eradication Presented by Omar F sami ID /f Feb 22,2012 U MASS BOSTON UNIVERSITY Class Presentation.
CHAPTER 5: PREDICTING STORM SURGE LESSONS FROM HURRICANE IKE.

CHAPTER 5: PREDICTING STORM SURGE LESSONS FROM HURRICANE IKE.
Cdr Sunil Chauhan, Senior Fellow, CS3/USI

Cdr Sunil Chauhan, Senior Fellow, CS3/USI
Caribbean Disaster Mitigation Project Caribbean Institute for Meteorology and Hydrology Impacts of Tropical Cyclones Horace H. P. Burton and Selvin DeC.

Caribbean Disaster Mitigation Project Caribbean Institute for Meteorology and Hydrology Impacts of Tropical Cyclones Horace H. P. Burton and Selvin DeC.
Future Impacts to Land Subject to Coastal Storm Flowage Julia Knisel Coastal Shoreline & Floodplain Manager.

Future Impacts to Land Subject to Coastal Storm Flowage Julia Knisel Coastal Shoreline & Floodplain Manager.
COASTANCE Komotini 27 March 2012 Coastal Flooding phenomena in the Region of Eastern Macedonia Thrace (REMTH) in relation to Climate Change Nikos Kotsovinos.

COASTANCE Komotini 27 March 2012 Coastal Flooding phenomena in the Region of Eastern Macedonia Thrace (REMTH) in relation to Climate Change Nikos Kotsovinos.
Bangladesh: Coastal Flooding By: Paul Stark. CONTEXT OF A DISASTER Bangladesh has approximately a 150 million people population. An estimated 50 million.

Bangladesh: Coastal Flooding By: Paul Stark. CONTEXT OF A DISASTER Bangladesh has approximately a 150 million people population. An estimated 50 million.
Australia’s likely future climate and impacts Penny Whetton IPAA March 2010 Climate Adaptation National Research Flagship.

Australia’s likely future climate and impacts Penny Whetton IPAA March 2010 Climate Adaptation National Research Flagship.
1 Global Climate Change Impacts in the United States.

1 Global Climate Change Impacts in the United States.
Ghana’s Initial National Communication William K. Agyemang-Bonsu EPA.

Ghana’s Initial National Communication William K. Agyemang-Bonsu EPA.
1 by Lourdes V. Tibig Presented at the In-Session Workshop on Impacts of and Vulnerability and Adaptation to Climate Change, Bonn, Germany, 18 June 2004.

1 by Lourdes V. Tibig Presented at the In-Session Workshop on Impacts of and Vulnerability and Adaptation to Climate Change, Bonn, Germany, 18 June 2004.
First Session of South Asian Climate Outlook Forum (SASCOF – 1) Pune, India, 13 -1 5 April 2010 Impact of Extreme Climate Events on Maldives Abdul Muhsin.

First Session of South Asian Climate Outlook Forum (SASCOF – 1) Pune, India, April 2010 Impact of Extreme Climate Events on Maldives Abdul Muhsin.
Bangladesh: Basic Facts Presented by: Syed Amdadul Huq Research Director (a.i.), FPMU 22/02/10 Presentation to Cambodian Food Security Team.

Bangladesh: Basic Facts Presented by: Syed Amdadul Huq Research Director (a.i.), FPMU 22/02/10 Presentation to Cambodian Food Security Team.
Integrated Methods and Models for Assessing Coastal Impacts and Adaptation to Climate Change (AIACC Project SIS09) Conducted by: Pacific Centre for Sustainable.

Integrated Methods and Models for Assessing Coastal Impacts and Adaptation to Climate Change (AIACC Project SIS09) Conducted by: Pacific Centre for Sustainable.
IPCC WGII Third Assessment Report – Regional Issues with Emphasis on Developing Countries of Africa Paul V. Desanker (Malawi) Coordinating Lead Author.

IPCC WGII Third Assessment Report – Regional Issues with Emphasis on Developing Countries of Africa Paul V. Desanker (Malawi) Coordinating Lead Author.
TECHNOLOGY FOR ADAPTATION TO CLIMATE CHANGE IN COASTAL ZONES Richard J.T. Klein 1,2 1. Potsdam Institute for Climate Impact Research, Germany 2. Stockholm.

TECHNOLOGY FOR ADAPTATION TO CLIMATE CHANGE IN COASTAL ZONES Richard J.T. Klein 1,2 1. Potsdam Institute for Climate Impact Research, Germany 2. Stockholm.

Similar presentations

Ads by Google