CAJ | 학술논문

通过对丹东地区4个雨量站1951-2006年降水资料的统计和分析,探讨了丹东地区降水的时空分布特征及其变化趋势.在此基础上,分别运用降水距平百分率、Z指数和降水温度均一化指标3种方法对丹东地区的旱涝特征进行了初步分析.结果表明:丹东地区的多年平均降雨量为1 006.8 mm,雨量充沛,但降水年际、年内变化均较大,分配不均匀.运用三种旱涝指标对丹东地区的旱涝特征进行分析,结果可以看出,尽管三种指标的计算结果均能体现出丹东地区的旱涝等级的变化趋势,但Z指标法的计算结果更为接近实际情况.
통과대단동지구4개우량참1951-2006년강수자료적통계화분석,탐토료단동지구강수적시공분포특정급기변화추세.재차기출상,분별운용강수거평백분솔、Z지수화강수온도균일화지표3충방법대단동지구적한로특정진행료초보분석.결과표명:단동지구적다년평균강우량위1 006.8 mm,우량충패,단강수년제、년내변화균교대,분배불균균.운용삼충한로지표대단동지구적한로특정진행분석,결과가이간출,진관삼충지표적계산결과균능체현출단동지구적한로등급적변화추세,단Z지표법적계산결과경위접근실제정황.
Through a statistic calculation and analysis of the data from 4 rainfall gauge stations in Dandong from 1951 to 2006 , the spatiotemporal distribution characteristics of the precipitation in Dandong and its trend are analyzed. On this basis, the anomalous percentages of precipitation, Z index, homogenization of precipitation and temperature are used to analyze the characteristics of droughts and floods for Dandong. The result shows that the average annual precipitation of Dandong is 1 006. 8 mm, the precipitation is abundant, but it varies asymmetrically inside the year and between the years, its distribution is uneven. By using the three types of indicators on the characteristics of drought and flood analysis for Dandong, the results can be seen, although the results of the three indicators can reflect the changes in the level of droughts and floods for Dandong, but the calculation results by Z index is more closer to the actual situation.