from engineering knowledge to wise adaptation · 2013-01-17 · from engineering knowledge to wise...
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From Engineering Knowledge to Wise Adaptation • Kazuya Yasuhara
• Institute for Global Change Adaptation Science (ICAS)
• Professor Emeritus, Ibaraki University, Japan
2nd Adaptation Forum
• Bangkok, Thailand
• 13 March, 2012
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Outline of S-8 supported by MOE, Japan
Providing scientific finding to
decision making for domestic &
foreign policies
Socioeconomic Scenario
[Theme 2] Community-based
Impacts Evaluation and
Adaptation
Policies
[Theme 1] Reliable Evaluation for Global Warming Impacts
Synthetic evaluation model Economic analysis
Sim
plifie
d
evalu
atio
n
meth
odolo
gy
Feedback to community
[Theme 3] Indices for Evaluating
Vulnerability and
Adaptability
in the
Asia-Pacific Region
Health Agriculture Coastal disaster Eco-system
Water resource
Downscaling of climate scenarios Wid
e-ra
nged
evalu
atio
n
meth
odolo
gy
Climate Scenario
Community-based
consortium International network
in the Asia Pacific
Region
Feedback to developing countries
2
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Integrated Monitoring System for Adaptation Strategies on
the Vietnamese Coast” (FY2011-FY2013)
Monitoring
・Ocean waves・Performance
of dyke
Analysis
・Data analysis・Numerical
analysis
Adaptation
・Proposal・Verifi-
cation
Ibaraki
/TsukubaUniversities
Hanoi Univ.
of Science
Toa Const-
ruction Co.Ltd.
Penta Ocean
ConstructionCO. LTD
(2009 at Hai Hau district)(2010 at Hai Hau district)
Fukuyama
Consultants
International cooperation
(Supported by MEXT, Japan)
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Hai Trieu Village in 1995(L.G.Vu,2003) Hai Trieu Village in 2001(L.G.Vu,2003)
Hai Ly Village in July-2010 Hai Ly Village in September-2011
A Typical Example in Vietnamese coastal erosion
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Two approaches for plan and action of adaptation
(After Mimura, 2011)
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Health
Agriculture
Water resource
Coast
Forestry
Disaster prevention
Disaster reduction
<Countermeasure> <Adaptive measure>
Mutual understanding of
different scientific communities
GLOBAL ENVIRONMENT SCIENCE
DISASTER PREVENTION
SCIENCE
Relationship between two sciences
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Adaptive measure against erosion using soil bag with jute or geosynthetics(GS)
(a) 土嚢工法を適用した波浪侵食対策工の断面図
10 m 15 m
中詰め材:砂+モルタル
中詰め材:砂+モルタル中詰め材:現地発生土+セメント
ジュートバックの施工区間ジオシンセティックスバックの施工区間
木杭
ソイルセメントによる覆土
(b) 正面図(すり付け部3m区間を含まず)
中詰め材:現地発生土+セメント+ジュート繊維
3.3 m
敷きレンガ
木杭
破砕レンガ+砂(フィルター材)
掘削線
ジュートバックもしくはジオシンセティックスバック
テール
(ジオシンセティックスバッグのみ)2.9 m風波(洪水期)
1.2 m
Jute or GS
Wave (storm)
Wooden
pile
(a) Horizontal profile
GS section Jute section
Soil
cement Sand+
mortar
Sand + mortar
Sand + cement + jute
(b) Frontal view
Locally avail.
soil + cement
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From Adaptation to Tohoku Reconstruction, Japan
(JICA project in Bangladesh)
The adaptation measure for reducing climate change-induced disaster in Bangladesh can be adopted for recovery of disasters induced by the great Japan earthquake.
(Ishinomaki, Miyagi, Japan)
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Multiple Protection: a set of example
(a) Beach nourishment
(b) Mangrove plantation
(c) Gabion placement
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Summary
• From among many options for protecting coasts and river against erosion and other climate change-induced events, the importance of multiple-safe guard system is emphasized.
• The necessity of flexible structures from rigid ones is also emphasized for adaptation along the sea and river coasts including the levee.
• Utilization of locally available materials is recommended for soft structures.
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Thank you for kind attention!