现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2013年
18期
242-243,247
,共3页
台风%路径%引导气流%温度场%涡度场
檯風%路徑%引導氣流%溫度場%渦度場
태풍%로경%인도기류%온도장%와도장
typhoon%track%steering flow%temperature field%field of vorticity
利用1o×1o的NCEP全球再分析资料和实时高空、地面加密探测等资料，综合分析了环流背景、海表面温度和850 hPa的涡度变化对“碧利斯”和“桑美”台风的路径的影响。结果表明：它们在500 hPa的引导气流相似，都是受副高南侧的偏东气流的影响；在台风发展的过程中，在它们的西北方向都有暖舌稳定存在；在台风运动过程中，在850 hPa上总有一个正的涡度中心在它们的西北方向，引导它们向西北方向运动。
利用1o×1o的NCEP全毬再分析資料和實時高空、地麵加密探測等資料，綜閤分析瞭環流揹景、海錶麵溫度和850 hPa的渦度變化對“碧利斯”和“桑美”檯風的路徑的影響。結果錶明：它們在500 hPa的引導氣流相似，都是受副高南側的偏東氣流的影響；在檯風髮展的過程中，在它們的西北方嚮都有暖舌穩定存在；在檯風運動過程中，在850 hPa上總有一箇正的渦度中心在它們的西北方嚮，引導它們嚮西北方嚮運動。
이용1o×1o적NCEP전구재분석자료화실시고공、지면가밀탐측등자료，종합분석료배류배경、해표면온도화850 hPa적와도변화대“벽리사”화“상미”태풍적로경적영향。결과표명：타문재500 hPa적인도기류상사，도시수부고남측적편동기류적영향；재태풍발전적과정중，재타문적서북방향도유난설은정존재；재태풍운동과정중，재850 hPa상총유일개정적와도중심재타문적서북방향，인도타문향서북방향운동。
By using NCEP global 1oí1ore-analysis data,real-time radiosonde and intensive surface observation data,a comprehensive analysis was made of the influence of circulation background,temperature field and field of vorticity activity on the track of typhoon "Bilis" and "Saomai". The results showed that they had the likeness steering flow at 500 hPa,all under the influence of the east current of air;They had a warm tongue stability existence in their northwest when they were in the process of development. There was always a positive vorticity center in their northwest directions on the 850 hPa when they moved towards northwest.
