西太平洋8708号台风海面风、浪结构及其关系的遥感研究
Analysis of typhoon Betty 1987 on sea surface wind and wave overthe western Pacific using Geosat altimetric data
-
摘要: 本文以Geosat卫星高度计1987年8月11日在西太平洋海域上的-上升轨道测得的风、浪资料为基础,统计分析了8708号台风影响下的海面风速和海浪特征.结果显示,此次台风影响下的海面风速和海浪波高的空间分布具有相对台风中心近似对称的结构特征,但在台风内区,台风移动方向的右方风速较左方风速增加较快,同时在台风外围,右方风速较左方风速衰减也较快;有效波高没有明显的内、外区结构,且左、右方波高随距离变化也呈不同的衰减率;风速与有效波高的关系在台风中心左右也呈现明显的不同;本文给出了台风的风速及波高随相对台风中心距离变化的经验关系式,以及合风风速与波高的经验关系式等.Abstract: Based on the Ueosat altimetric data of an ascending orbit over the western Pacific on August 11,1987,the features of sea surface wind and wave under the influence of typhoon Betty are analyzed.It is shown that the spatial distributions of wind speed and wave height are asymmetric to the center of the typhoon.In the direction of the typhoon movement,the wind speed in the right quadrant increased more rapidly than that in the left within the inner area of the typhoon,while in the outer area the former also decreased more rapidly than the latter.However,unlike the wind speed,the spatial distribution of wave height has no obvious division between inner and outer areas.The wave height in the left and right quadrant shows the different distributions with the distance increasing to the typhoon center.The relationships between wind speed and wave height in the right and the left quadrant are obviously different.The empirical formulas are established on the variations in wind speed and wave height with the distance to the typhoon center and on the relationship between wind speed and wave heieht.
-
Key words:
- Geosat satellite altimeter /
- typhoon /
- Sea surface wind speeds and wave heights /
-
李叔廷.台风外围风速的计算和预报.1978年台风会议文集,上海:上海科技出版社,1981 房文莺,徐启明,章家琳等.东海台风海域内的风速分布.海洋预报,1987.4(3):1-4 徐家隽,杨天鸿.一个台风范围内的风场模式及其应用计算.热带海洋,1988,7(7):1-9 关芬呈,周强,郑玲玲等.南海台风风场分析及其预报.海洋预报,1990,7(2):20-27 杨平章,黄永新,陈会合等.南海热带气旋大风预报.台风及其灾害性夭气业务预报方法的研究,北京:气象出版社,1996,146-151 Shea D J,Gray W M.The hurricane's inner core region Ⅰ:Symmetric and asymmetric structure.J.Atmos.Sci.,1973,30,1 544-1 564 Holland G J.An analytical model of the wind and pressure profiles in hurricanes.Mon.Weather Rev.,1980,108,1212-1218 Shapiro L J.The asymmetric boundary layer flow under a translating hurricane.J.Atmos.Sci.,1983,40,1984-1 988 郭佩芳,王华,施平.温带气旋浪断面结构的研究.海洋与湖沼,1994,12(3):288-292 齐义泉,施平,毛庆文.南海海面风场和浪场季平均特征的卫星遥感分析.第一届全国海事技术研讨会文集,上海:上海科技文献出版社,1995.63-69 齐义泉,施平,毛庆文.南海海面风速季平均特征的卫星遥感分析.热带海洋,1996,12(2):68-73 国家气象局编.台风年鉴.北京:气象出版社,l987 Uoldhirsh J,Dobson E D.A recommended algorithm for the determination of ocean surface wind speed using a satelliteborne rader altimeter.Rep.SIR85U-005,Appl.Phys.Lab.,Johns Hopkins Univ.,Laurel.Md.,1985 Chelton D B,Wentz F J.Further development of an improved altimeter wind speed algorithm.J.Geophys.Res.,1986,91,14 250-14 260 Witter D I,Chelton D B.A Ueosat altimeter wind speed algorithm and a method for altimeter wind speed algorithm development.J.Geophys.Res.,1986,96,8 853-8 860 Young I R.An estimate of the Geosat altimeter wind speed algorithm at high wind speeds.J.Oeophys.Rea.,1993.98(11):20 275-20 285 Dobson E D,Monaldo F,Goldhirsh J.Validation of (Geosat altimeter-derived wind speeds and significant wave heights using buoy data.J.Geophys.,Res.,1987,92,10 719-10 731 王志烈,费亮.台风预报手册.北京:气象出版社,1987,360 -
点击查看大图
计量
- 文章访问数: 785
- HTML全文浏览量: 14
- PDF下载量: 1145
- 被引次数: 0
下载:
