|
|
|
Çѱ¹Á¶°æÇÐȸ / v.37, no.3, 2009³â, pp.46-53
|
À§¼º¿µ»óÀ» ÀÌ¿ëÇÑ µµ½Ã³ìÁöÀÇ ±â¿ÂÀú°¨ È¿°ú ºÐ¼®
( An Application of Satellite Image Analysis to Visualize the Effects of Urban Green Areas on Temperature ) |
| À±¹ÎÈ£;¾Èµ¿¸¸; ¼¿ï´ëÇб³ ´ëÇпø »ýÅÂÁ¶°æÇÐ Àü°ø;¼¿ï´ëÇб³ Á¶°æ.Áö¿ª½Ã½ºÅÛ°øÇкÎ;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| À§¼º¿µ»ó ÀڷḦ ÀÌ¿ëÇÏ¿© ³ìÁö°¡ ÁÖº¯ µµ½ÃÁö¿ª ±â¿ÂÀú°¨¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¹üÀ§¸¦ ºÐ¼®ÇÏ´Â ¹æ¹ýÀ» Á¦½ÃÇÏ¿´´Ù. Landsat 5 TM Band 6¿¡¼ Ç¥¸é¿Âµµ¸¦ ÃßÃâÇϰí, À̸¦ ÀÚµ¿±â»ó°üÃø¼ÒÀÇ ½ÇÃø±â¿ÂÀ» ÀÌ¿ëÇÏ¿© ±â¿ÂÀ¸·Î º¸Á¤ÇÏ¿´´Ù. À§¿Í °°Àº ¹æ¹ýÀ¸·Î À§¼º¿µ»óÀ¸·ÎºÎÅÍ ÁöÇ¥¿Âµµ¸¦ ÃßÃâ º¸Á¤ÇÑ ÈÄ ³ìÁö°¡ µµ½Ã±â¿Â¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» »ìÆìº¸±â À§ÇÏ¿© µî¿Â¼±µµ¸¦ ÀÛ¼ºÇÏ¿´´Ù. ±â¿ÂÀÌ °Å¸®¿¡ µû¶ó ±Þ°ÝÇÏ°Ô º¯ÈÇÏ´Â Áö¿ªÀ» ±â¿Â¿Ïȱ¸°£À̶ó°í Á¤ÀÇÇϰí, 100m´ç $0.1^{circ}C$ ÀÌ»óÀÇ ±â¿ÂÀú°¨À» ±âÁØÀ¸·Î ±â¿Â¿ÏÈÈ¿°ú ¿µ¿ªÀ» ¼³Á¤ÇÏ¿´´Ù. À§¿Í °°Àº ¹æ¹ýÀ¸·Î ¼öÇý¸éÀûÀ» µµÃâÇÑ ÈÄ ÇØ´çÇàÁ¤±¸¿ª ³» Àα¸°¡ µ¿ÀÏÇÏ°Ô ºÐÆ÷ÇÑ´Ù°í °¡Á¤ÇÏ¿© ±â¿ÂÀú°¨¼öÇýÀα¸¸¦ µµÃâÇÏ¿´´Ù. º» ¿¬±¸ÀÇ °á°ú´Â ´ÙÀ½°ú °°´Ù. ³ìÁöÀÇ ±â¿ÂÀú°¨¿µÇâÀÌ ³ìÁö·ÎºÎÅÍ ¹Ý°æ 500m±îÁö ¹ÌÄ£´Ù´Â ¼±Ç࿬±¸¸¦ Åä´ë·Î ±âÁØÀ» ¼³Á¤ÇÒ °æ¿ì ½Ã°¡Áö Áß 100m ´ç $0.1^{circ}C$ ÀÌ»óÀÇ ±â¿ÂÀú°¨ ¿µÇâÀ» ¹Þ´Â ¸éÀûÀº $67.33km^2$·Î Àüü ¼¿ï½Ã ¸éÀûÀÇ 11.12%, ½Ã°¡Áö¸éÀûÀ» ±âÁØÀ¸·Î ÇÒ °æ¿ì 18.09%¸¦ Â÷ÁöÇÑ´Ù. ¼¿ï½Ã¹ÎÀÌ ½Ã°¡Áö¿¡ µî¹Ðµµ·Î °ÅÁÖÇÑ´Ù°í °¡Á¤Çϸé 2008³â 1/4ºÐ±â ±âÁØÀ¸·Î ¼¿ï½Ã Àα¸ 10,456,095¸í Áß ¾à 1,892,000¸íÀ» ±â¿ÂÀú°¨ ¼öÇýÀα¸·Î ÃßÁ¤ÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ, ±â¿ÂÀú°¨ ¿µÇâ±Ç¿ª ´Ü¸é 50°÷À» ÀÓÀÇ·Î ¼±Á¤ÇÏ¿© ´Ü¸éµµ¸¦ ÀÛ¼ºÇÑ °á°ú, ³ìÁöÀÇ °æ°èºÎ¿Í ½Ã°¡ÁöÀÇ ±â¿ÂÀº Æò±Õ $0.78^{circ}C$ Â÷À̰¡ ³µÀ¸¸ç, ÃÖÀú $0.3^{circ}C$, ÃÖ´ë $1.7^{circ}C$ÀÇ Â÷À̸¦ º¸¿´´Ù. À̸¦ ÅëÇØ ¿¼¶¿ÏÈÃø¸é¿¡¼ ¹ý·ü»ó °ø¿øÀÇ À¯Ä¡°Å¸® ¹× ¹èÄ¡ÀÇ ÀûÀý¼ºÀ» ºÐ¼®ÇÏ¿© ÇâÈÄ °ø¿ø Á¶¼º ½Ã Àΰ£ÀÇ ÀÌ¿ëÃø¸é¸¸ÀÌ ¾Æ´Ñ ¿¼¶¿ÏÈ ¹× ¿ ÄèÀû¼ºÀ» °í·ÁÇÑ »õ·Î¿î ±âÁØÀÛ¼ºÀÇ ±âÃÊÀÚ·á·Î Ȱ¿ë °¡´ÉÇÏ´Ù. |
|
| Urbanization brings several changes to the natural environment. Its consequences can have a direct effect on climatic features, as in the Urban Heat Island Effect. One factor that directly affects the urban climate is the green area. In urban areas, vegetation is suppressed in order to accommodate manmade buildings and streets. In this paper we analyze the effect of green areas on the urban temperature in Seoul. The period selected for analysis was July 30th, 2007. The ground temperature was measured using Landsat TM satellite imagery. Land cover was calculated in terms of city area, water, bare soil, wet lands, grass lands, forest, and farmland. We extracted the surface temperature using the Linear Regression Model. Then, we did a regression analysis between air temperature at the Automatic Weather Station and surface temperature. Finally, we calculated the temperature decrease area and the population benefits from the green areas. Consequently, we determined that a green area with a radius of 500m will have a temperature reduction area of $67.33km^2$, in terms of urban area. This is 11.12% of Seoul's metropolitan area and 18.09% of the Seoul urban area. We can assume that about 1,892,000 people would be affected by this green area's temperature reduction. Also, we randomly chose 50 places to analysis a cross section of temperature reduction area. Temperature differences between the boundaries of green and urban areas are an average of $0.78^{circ}C$. The highest temperature difference is $1.7^{circ}C$, and the lowest temperature difference is $0.3^{circ}C$. This study has demonstrated that we can understand how green areas truly affect air temperature. |
| |
| Ű¿öµå |
| µµ½Ã½£;Ç¥¸é¿Âµµ;µµ½Ã¿¼¶Çö»ó;¿ ÄèÀû¼º;ÅäÁöÀÌ¿ë;Urban Forest;Surface Temperature;Urban Heat Island;Thermal Comfort;Land Cover; |
| |
|
|
 |
|
Çѱ¹Á¶°æÇÐȸÁö / v.37, no.3, 2009³â, pp.46-53
Çѱ¹Á¶°æÇÐȸ
ISSN : 1225-1755
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200932056738400)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|