As precipitation is significantly affected by topography, its pattern is very localized. Especially, Seoul forms a basin, with Han River crossing over the middle of it and various configurations of topography are created. Also, due to fluctuating patterns of precipitation with the degree of developm...
As precipitation is significantly affected by topography, its pattern is very localized. Especially, Seoul forms a basin, with Han River crossing over the middle of it and various configurations of topography are created. Also, due to fluctuating patterns of precipitation with the degree of development in the city, precipitation distribution varies over the Seoul area. However, since we have been relying on the data collected in a single observation at Song-wol-dong, it was difficult to examine the spatial distribution of precipitation. I have used data obtained from 20 AWS (automatic weather station) from 1996 to 1999 in order to investigate the pattern of precipitation over the Seoul area. The annual average amount of precipitation and number of precipitation days exhibits as following: the northern, north-eastern and eastern part of Seoul gets significant larger amount of precipitation whereas there are relatively smaller amounts in the western, southern, and south-eastern part of Seoul. The pattern of precipitation, in particular, shows various amount of precipitation and number of precipitation days every year; in 1998, it had more than twice amount of precipitation than normal, but the spatial distribution is pretty much constant with the annual average amount of rainfall. The light precipitation days and heavy precipitation days show different spatial distributions in Seoul; The maxima of light precipitation days are distributed in downwind of the city which is the north, north-eastern, and eastern part while the maxima of heavy precipitation days locate in the downwind of the city as well as in the center of Seoul. The seasonal precipitation pattern shows similar pattern to the annual precipitation distribution with slight differences according to synoptic situation at each season. In spring, there is a big amount of precipitation distributed in the northern part whereas it does not get much precipitation in the southern part. However, in spring, annual precipitation ratio distribution against the total precipitation days shows higher ratios in the northern, western and southern part, which is distant from the center of the city. Since it rains a lot in summer, affecting the total precipitation significantly, during summer spatial distribution looks similar to the annual average precipitation. Also, in summer precipitation ratio against the total number of precipitation days is larger in the center of the city and gets smaller as it moves farther from the center of the city. In fall, the amount of precipitation distributes a bigger amount in the center and northern part of Seoul, and it is relatively smaller in the southern part. Although, in fall, annual precipitation ratio against total precipitation days is similar to that of spring, it appears to be higher in the places where there was smaller ratio during spring. Lastly, winter shows the smallest amount of rainfall out of four seasons. Since the northwest monsoon affects the weather in the winter, the precipitation amount is higher in northern, eastern, and south-eastern part than in the north-western part, and precipitation ratio appears to be higher in the eastern and southern part. Like the above, the spatial distribution of precipitation is examined with the AWS data collected in Seoul. Nevertheless, the data has missing and inaccuracy due to AWS's short observatory period and the carelessness in managing the data at each stations. However, if the number of stations increases and more accurate data is obtained from each stations, it will be possible to study spatial distribution more precisely.
As precipitation is significantly affected by topography, its pattern is very localized. Especially, Seoul forms a basin, with Han River crossing over the middle of it and various configurations of topography are created. Also, due to fluctuating patterns of precipitation with the degree of development in the city, precipitation distribution varies over the Seoul area. However, since we have been relying on the data collected in a single observation at Song-wol-dong, it was difficult to examine the spatial distribution of precipitation. I have used data obtained from 20 AWS (automatic weather station) from 1996 to 1999 in order to investigate the pattern of precipitation over the Seoul area. The annual average amount of precipitation and number of precipitation days exhibits as following: the northern, north-eastern and eastern part of Seoul gets significant larger amount of precipitation whereas there are relatively smaller amounts in the western, southern, and south-eastern part of Seoul. The pattern of precipitation, in particular, shows various amount of precipitation and number of precipitation days every year; in 1998, it had more than twice amount of precipitation than normal, but the spatial distribution is pretty much constant with the annual average amount of rainfall. The light precipitation days and heavy precipitation days show different spatial distributions in Seoul; The maxima of light precipitation days are distributed in downwind of the city which is the north, north-eastern, and eastern part while the maxima of heavy precipitation days locate in the downwind of the city as well as in the center of Seoul. The seasonal precipitation pattern shows similar pattern to the annual precipitation distribution with slight differences according to synoptic situation at each season. In spring, there is a big amount of precipitation distributed in the northern part whereas it does not get much precipitation in the southern part. However, in spring, annual precipitation ratio distribution against the total precipitation days shows higher ratios in the northern, western and southern part, which is distant from the center of the city. Since it rains a lot in summer, affecting the total precipitation significantly, during summer spatial distribution looks similar to the annual average precipitation. Also, in summer precipitation ratio against the total number of precipitation days is larger in the center of the city and gets smaller as it moves farther from the center of the city. In fall, the amount of precipitation distributes a bigger amount in the center and northern part of Seoul, and it is relatively smaller in the southern part. Although, in fall, annual precipitation ratio against total precipitation days is similar to that of spring, it appears to be higher in the places where there was smaller ratio during spring. Lastly, winter shows the smallest amount of rainfall out of four seasons. Since the northwest monsoon affects the weather in the winter, the precipitation amount is higher in northern, eastern, and south-eastern part than in the north-western part, and precipitation ratio appears to be higher in the eastern and southern part. Like the above, the spatial distribution of precipitation is examined with the AWS data collected in Seoul. Nevertheless, the data has missing and inaccuracy due to AWS's short observatory period and the carelessness in managing the data at each stations. However, if the number of stations increases and more accurate data is obtained from each stations, it will be possible to study spatial distribution more precisely.
주제어
#서울강수 공간분포 강수
※ AI-Helper는 부적절한 답변을 할 수 있습니다.