CAJ | 학술논문

根据1974～1997年卫星观测的OLR(射出长波辐射)资料计算OLR的特征量，用其表征ITCZ和副热带高压的位置和强度，分析影响福建热带气旋(TC)年频数与ITCZ和副热带高压的关系。结果表明，TC异常偏少(多)年，ITCZ位置偏南(北)，强度偏弱(强)，副高位置偏南(北)；TC异常年份前期OLR场特征关系表明，TC异常偏多年和异常偏少年太平洋上的OLR距平场配置相反，即TC异常偏少(多)年，西太平洋热带地区OLR为正距平，而赤道中东太平洋为负(正)距平区。
근거1974～1997년위성관측적OLR(사출장파복사)자료계산OLR적특정량，용기표정ITCZ화부열대고압적위치화강도，분석영향복건열대기선(TC)년빈수여ITCZ화부열대고압적관계。결과표명，TC이상편소(다)년，ITCZ위치편남(북)，강도편약(강)，부고위치편남(북)；TC이상년빈전기OLR장특정관계표명，TC이상편다년화이상편소년태평양상적OLR거평장배치상반，즉TC이상편소(다)년，서태평양열대지구OLR위정거평，이적도중동태평양위부(정)거평구。
Using OLR (outer long-wave radiation) fields observed by NOAA during the period between 1974 and 1997, locations and intensities of ITCZ and subtropical high over the west Pacific denoted by OLR feature quantity are obtained by feature analysis. The result shows that in years of negative anomalous frequency of tropical cyclones in Fujian, ITCZ and the subtropical high lie in more southern location and both are weaker, and vice versa, in terms of the relations between year-frequency of tropical cyclones and ITCZ and the subtropical high.And the early-time OLR features indicate that the field allocation in years of negative anomalous frequency of TC is always an opposite one in years of positive anomalous frequency of TC in the Pacific. That is, in years of negative anomalous frequency of TC negative anomalies cover the tropical west Pacific and the tropical middle Pacific while positive anomalies cover the tropical middle Pacific in years of positive anomalous frequency of TC.