CAJ | 학술논문

提利用2007-2010年北京123个自动气象站逐时降水观测资料，采用聚类分析方法，对北京的主城区、西部和北部区、东北区、东南区共分为4个区域的逐时降水时空分布特征进行了分析。结果表明：通过与实际地形和下垫面类型比较，自动站分类较为合理，避免了在区域划分方面的主观因素影响。主城区降水集中时段最为突出，集中出现在7月逐日20-00时，且降水强度最强，降水量较大，降水小时数不多。西部和北部区降水集中出现在6月逐日18-20时、7月逐日23时至次日03时，降水小时数最多，降水强度不大，降水量不大。东北区降水主要集中出现在7月逐日00-08时和17-23时，降水小时数较多，降水强度不大，降水量最大；东南区降水主要集中出现在7月的逐日02-04时，降水小时数少，降水强度较大，降水量较大。
제이용2007-2010년북경123개자동기상참축시강수관측자료，채용취류분석방법，대북경적주성구、서부화북부구、동북구、동남구공분위4개구역적축시강수시공분포특정진행료분석。결과표명：통과여실제지형화하점면류형비교，자동참분류교위합리，피면료재구역화분방면적주관인소영향。주성구강수집중시단최위돌출，집중출현재7월축일20-00시，차강수강도최강，강수량교대，강수소시수불다。서부화북부구강수집중출현재6월축일18-20시、7월축일23시지차일03시，강수소시수최다，강수강도불대，강수량불대。동북구강수주요집중출현재7월축일00-08시화17-23시，강수소시수교다，강수강도불대，강수량최대；동남구강수주요집중출현재7월적축일02-04시，강수소시수소，강수강도교대，강수량교대。
By using K-means clustering method,hourly precipitation data from 123 automatic weather sta-tions (AWS)in Beijing Area during the period of 2007-2010,the precipitation distribution characteristics of the four areas including North and West area,Northeast area stations,Urban area stations and South-east area stations are analyzed.Compared with the actual topography and underlying surface types,the classification of automatic stations is more reasonable and can avoid the influence of subj ective factors in the regional classification.In Urban areas the precipitation concentration period is the most prominent, mainly in 20:00-00:00 BT daily July with strongest intensity,greater amount and in fewer hours.In the North and West area precipitation mainly appears in 18:00-20:00 BT daily June and 23:00-03:00 BT the next day daily July,with weaker intensity,and less amount and in more hours.In the Northeast area pre-cipitation mainly appears in 00:00-08:00 BT and 17:00-23:00 BT daily July,with the weakest rainfall intensity and the maximum precipitation amount and in more precipitation hours.In the Southeast area precipitation mainly appears in 02:00-04:00 BT daily July,with stronger intensity and greater amount,and in fewer hours.