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Introduction of Climate map and applicaiton in planning of Ho Chi Minh City
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Transcript of Introduction of Climate map and applicaiton in planning of Ho Chi Minh City
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URBAN CLIMATE MAP
Advisor: Prof. Lutz KatzschnerStudents: Hoang Anh
Le Nguyen Huong GiangNguyen Dinh Khoa
Vietnamese German university
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OUTLINE
1. Purposes of climate map
2. Key principles (inputs)
3. Analysis the climate maps of HCMC
4. Climate map & Planning
5. Recommendation
6. References
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1. PURPOSES OF CLIMATE MAP
Definition◦ The concept of UCMapping was first developed by
German researchers in the late 1970s(Matzarakis, 2005).
◦ Urban Climatic Map integrates urban climatic factors and town planning considerations. It provides an information platform to planners for making informed environmental/ planning decisions.
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1. PURPOSES OF CLIMATE MAP (Cont)
Purposes◦ To understand principles of climate and to define
information of climate for an area/ region;◦ To have better urban planning;◦ Respect natural conditions and environment◦ Urban Climatic Map integrates urban climatic
factors and town planning considerations. It provides an information platform to planners for making informed environmental/ planning decisions.
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2. KEY PRINCIPLES (INPUTS)
Two main UCmap components:◦ UC-AnMap (Analysis Map): visualizes and spatializes
various climatic evaluation and assessment by different Climatopes.
◦ UC-ReMap (Planning Recommendation): includes planning instructions from the urban climatic point of view.
Parameters Wind directions and speeds Solar radiation Air temperature City topography Landscape Building bulks Street grids Etc,
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Building• Building volume• Ground coverage
Land use
• Building volume• Ground coverage• Natural landscape• Green space• Proximity to openness
Topography• Topography• Proximity to openness
Meteorology
• Cooling • Shadow• Sea Breeze• Slope• Wind information
Thermal load
Dynamic potentials
Dynamic potentials
FINAL UC MAP
2. KEY PRINCIPLES (INPUTS)
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2. KEY PRINCIPLES (INPUTS)
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3. ANALYSIS THE CLIMATE MAPS OF HCMC
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3. ANALYSIS THE CLIMATE MAPS OF HCMC
1 Fresh & cool air production zones
2 Cool air production zones.
3 Mixed & transitional climate zone
4 Overheating potential zone
5 Overheating zone 1
6 Overheating zone 2
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3. ANALYSIS THE CLIMATE MAPS OF HCMC Green colours mean cold air production with downstream
drainage or fresh air with or without relief energy The light green and orange areas are mixed zones which
can be warm during day but are able to cool down at night The red colours indicates areas with more risk of heat
accumulation.
Layers Urban climate aspect Data used
A Building volume Heat storage Building information & Land use
B Built up areas & openness
Heat storage & Ventilation
Building information and land use
C Cool & fresh air production, green areas
Heat balance of surfaces production of fresh & cool air.
Land use classification, surface conditions
D Roughness, air paths & ventilation
Land use openness, use of background wind and local circulations
Land use & openness surface data
E Slope analysis, downhill movements
Relief energy for thermal induced circulations
Digital elevation model
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4. CLIMATE MAP & PLANNING
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4. CLIMATE MAP & PLANNING
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4. CLIMATE MAP & PLANNING
“Place which requires an improvement” “Place which should be conserved”
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5. RECOMMENDATION
Guidelines of using climate map; Properly study climate in planning City; Collaborate with related organization for the best
results; Raise the awareness of climate importance; Planners should consult urban climatologists to
interpret UCMap and planning instructions appropriately
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6. REFERENCES
Prof. Lutz katzschner , Regional context Urban Climate Maps and Urban Planning.
Ren Chao, Tejo Spit Urban Climatic Map of Arnhem City
Ren Chao,Ng Edward Yan-yunga and Katzschner Lutz, Urban climatic map studies: a review