The Promotion of Environmental Assessments concerning Urban Climate and Air Quality in Spatial/Land Use Planning in Seoul, Republic of Korea Jeong-Hee Eum Johann Kppel, Dieter Scherer, Ute Fehrenbach IAIA 07, Seoul June 06, 2007 Berlin University of Technology, Germany 2 Introduction Conclusion Method Strategic Environmental Assessment in Korea Since June 2006 SEA = Prior Environmental Review System (PERS) Framework Act on Environmental Policy 13 environmental issues including meteorological characteristics should be evaluated in spatial / land use plans. Result 3 Evaluation relevant to Climate in PERS Evaluation Criteria Meteorological data (e.g. wind speed and direction), which affect dispersion of air/odor pollutions Effects of air/odor pollutions from the neighboring areas on the objective area Meteorological changes caused by new developments Evaluation tools Meteorological data measured with weather stations Model simulation Planning-oriented criteria and spatially- distributed information for spatial planning are needed! Introduction Conclusion Method Result 4 Concept Planning-oriented Evaluation Criteria Maintain ventilation Improve ventilation Reduce risks of hazards caused by strong winds Maintain transport of fresh air Improve transport of fresh air Reduce risks of air pollution Maintain transport of cold air Improve transport of cold air Reduce risks of ther. pollution Reduce frost risks / heat loss Ventilation Air quality Thermal situation Spatially-distributed Information Introduction Conclusion Method Result Ventilation Air quality Thermal situation 5 CAMPUS Input data Intermediate results Final Results Climate Analysis Maps for Planning Usage of Seoul Introduction Conclusion Method Result Landsat 7 ETM+ Biotope map (Vector data) Pixel classes Fractional CoverageStructural parameters Digital Terrain Model Areal types Environmental loads Ventilation Situations Planning-oriented & spatially-distributed information Digital Elevation Model 6 Climate Analysis & Evaluation Maps (1) Introduction Conclusion Method Result Wind speed compared to mean wind speed in CAMPUS area Over 225% to 225% to 200% to 175% to 150% to 125% to 100% to 75% to 50% 7 Climate Analysis & Evaluation Maps (2) Introduction Conclusion Method Result Cold air stagnationCold air transport Topography-influenced Building-influenced Low (20m 3 /m s) Vol. flow density High (>120m 3 /m s) Med. (>20m 3 /m s and 120m 3 /ms) Climate Analysis & Evaluation Maps (3) Introduction Conclusion Method Result Ventilation Situation Cold air stagnation Surface influence Cold air transport high volume flow den. Med. volume flow den. Wind exposition mean negative positive Mesoscale wind (topo. and building) high 9 Climate Analysis & Evaluation Maps (4) Introduction Conclusion Method Result Heat stress risksAir pollution risks No increased risks Increased risks High increased risks Planning-oriented Information (1) Introduction Conclusion Method Result Ventilation Maintain ventilation Improve ventilation Reduce risks of hazards caused by strong winds High Priority Low Priority 11 Planning-oriented Information (2) Introduction Conclusion Method Result Air Quality Maintain transport of fresh air Improve transport of fresh air Reduce risks of air pollution High Priority Low Priority 12 Planning-oriented Information (3) Introduction Conclusion Method Result Thermal Situation Maintain transport of cold air Improve transport of cold air Reduce risks of thermal loads Reduce frost risks / heat loss High Priority Low Priority 13 Summary and Conclusion Introduction Conclusion Method Result Due to climate change in global level, increasing urban temperature is expected. This study showed a way how the climatic elements can be evaluated for spatial/land use planning, concerning planning-oriented evaluation criteria. The spatially-distributed information, such as climate analysis maps and planning-oriented information will enable SEA executors to consider the issue of urban climate and air quality in spatial planning more efficient than before. 14 Thank you for your attention Jeong-Hee Eum For further information :