| Title |
Characterization of the Variability of Summer Extreme Precipitation According to the Local Features |
| Keywords |
local feature;summer extreme precipitation;variability analysis;mann-kendall test;지역특성;여름철 극한강수;변화분석;Mann-Kendall 검정 |
| Abstract |
Characterization the regional impact of the variability of summer extreme precipitation and the rain days over several thresholds (i.e. 10, 20, 30, 40, 50, 60, 70 and 80 ㎜/day) in South Korea was performed using daily precipitation data of 59 weather stations operated by Korean Meteorological Administration (KMA). To consider the local features of weather stations, we characterized the variability according to the difference of elevations, latitudes, longitudes, river basins, inland or shore area, and the ratio of urbanization. The results showed that the summer extreme precipitation is sensible to the geographical effect which is similar to that of the annual precipitation. Rain days over thresholds have increased during 1973-2009 while the annual rain days have decreased. This indicate that the concentration of precipitation in summer season will be intensified in the future. Increase of summer precipitation amount and number of extreme rain days is higher in inland area, urbanized area, and HanRiver basin than that of shore area, unurbanized area, and the other river basins respectively. |