气象与环境学报
氣象與環境學報
기상여배경학보
JOURNAL OF METEOROLOGY AND ENVIRONMENT
2014年
6期
80-84
,共5页
韩秀君%孙晓巍%李爽%王明华%李广霞%陈宇%王桂春
韓秀君%孫曉巍%李爽%王明華%李廣霞%陳宇%王桂春
한수군%손효외%리상%왕명화%리엄하%진우%왕계춘
致灾指标%暴雨灾害%预评估%决策气象服务
緻災指標%暴雨災害%預評估%決策氣象服務
치재지표%폭우재해%예평고%결책기상복무
Disaster-causing index%Rainstorm disaster%Pre-assessment of effect%Policy decision meteorological service
利用1951—2012年辽宁暴雨过程及暴雨灾情资料,对辽宁暴雨灾害特征及暴雨灾害评估进行分析,并应用统计分析方法,建立暴雨致灾指标与灾害影响预评估的关系。结果表明:1951—2012年辽宁年平均暴雨日数自东南向西北逐渐减少;辽宁暴雨灾害发生频率自中部向西北逐渐增多,灾害发生频率最高的地区为辽宁西部地区,其中朝阳喀左县暴雨灾害发生频率最高,占该站暴雨总次数的73%;辽宁西部等地区暴雨灾害发生频率较高,但降水强度较小,且发生一级和二级暴雨灾害的概率低于其他地区;除辽西地区外,其他地区暴雨灾害发生频率略低,但降水强度较大。辽宁受暴雨灾害影响最大的受灾体为农作物及其设施,辽阳地区受灾频率最大,占该地区受灾过程总数的95%以上。
利用1951—2012年遼寧暴雨過程及暴雨災情資料,對遼寧暴雨災害特徵及暴雨災害評估進行分析,併應用統計分析方法,建立暴雨緻災指標與災害影響預評估的關繫。結果錶明:1951—2012年遼寧年平均暴雨日數自東南嚮西北逐漸減少;遼寧暴雨災害髮生頻率自中部嚮西北逐漸增多,災害髮生頻率最高的地區為遼寧西部地區,其中朝暘喀左縣暴雨災害髮生頻率最高,佔該站暴雨總次數的73%;遼寧西部等地區暴雨災害髮生頻率較高,但降水彊度較小,且髮生一級和二級暴雨災害的概率低于其他地區;除遼西地區外,其他地區暴雨災害髮生頻率略低,但降水彊度較大。遼寧受暴雨災害影響最大的受災體為農作物及其設施,遼暘地區受災頻率最大,佔該地區受災過程總數的95%以上。
이용1951—2012년료녕폭우과정급폭우재정자료,대료녕폭우재해특정급폭우재해평고진행분석,병응용통계분석방법,건립폭우치재지표여재해영향예평고적관계。결과표명:1951—2012년료녕년평균폭우일수자동남향서북축점감소;료녕폭우재해발생빈솔자중부향서북축점증다,재해발생빈솔최고적지구위료녕서부지구,기중조양객좌현폭우재해발생빈솔최고,점해참폭우총차수적73%;료녕서부등지구폭우재해발생빈솔교고,단강수강도교소,차발생일급화이급폭우재해적개솔저우기타지구;제료서지구외,기타지구폭우재해발생빈솔략저,단강수강도교대。료녕수폭우재해영향최대적수재체위농작물급기설시,료양지구수재빈솔최대,점해지구수재과정총수적95%이상。
Based on rainstorm processes and disaster data in Liaoning proince from 1951 to 2012,characteristics of rainstorm disaster and its assessment were analyzed.Relationship between disaster-causing index and assessment of disaster effect was investigate using a statistic analysis method.The results show that the number of annual average rainstorm days in Liaoning province gradually reduces from southeast to northwest during 1951 to 2012.Frequency of rainstorm disaster gradually increases from the middle to northwest,especially in the western Liaoning province. For example,rainstorm disasters account for 73% of total rainstorm events in Kazuo County of Chaoyang.Rain-storm frequency is high and precipitation intensity is weak in the western of Liaoning province,while it is contrary in other areas.Also,probability of rainstorm disaster with the first and second grades is lower in the west than in other areas.Effect of rainstorm disaster on crop and its facilities is most significant.Frequency of affected disaster is the highest in Liaoyang area,and it is 95% of total disaster events.