本文利用角动量模式计算获得高风速资料,并通过气象观测站实测资料验证了风速资料的准确性,并将所得风速应用于Jason-1高度计风速反演模式函数研究,得到了一个新的风速反演模式函数。研究结果表明,本文提出的模式函数能更好地反映台风经过时海表面风速情况,实现了高度计对高风速(10~40 m/s)的反演,可作为Jason-1高度计风速反演业务化算法在高风速情况下的补充,以提高高度计风速反演精度。
High wind speed data were obtained by using the angular momentum model and their precision was verified by the weather station recorded data. A wind speed inversion algorithm for altimeter was developed by using these wind speeds. The results show that this new algorithm can inverse the sea surface wind speed more accurately when typhoon passes through, which realizes the high wind speed (10~40 m/s) inversion for altimeter. This, therefore, can be taken as the supplement of altimeter wind inversion algorithm for Jason-1 at the high wind speed, and improve the precision of altimeter wind inversion algorithm.
[1] LIU Yu-guang. Satellite oceanography[M].Beijing:Higher Education Press, 2009:206-230.
刘玉光.卫星海洋学[M].北京:高等教育出版社,2009:206-230.
[2] DRAPER D W, LONG D G. Evaluating the effect of rain on sea winds scatterometer measurements[J]. J Geophys Res, 2004, C12(109): C02005, doi:10.1029/ 2002JC001741.
[3] WEISSMAN D E, BOURASSA M A, TONGUE J. Effects of rain rate and wind magnitude on SeaWinds scatterometer wind speed errors[J]. J Atmos Oceanic Technol, 2002,5(19):738-746.
[4] PICOT N, CASE K, DESAI S, et al. AVISO and PODAAC user handbook[M]. IGDR and GDR Jason Products. Ver.4.1. SMM-MU-M5-OP-13184-CN (AVISO), 2008, JPL D-21352 (PODAAC).
[5] WITTER D L, CHELTON D B. A Geosat altimeter wind speed algorithm and a method for altimeter wind speed algorithm[J]. J Geophys Res,1991,C5(96):8 853-8 860.
[6] YOUNG I R. An estimate of the Geosat altimeter wind speed algorithm at high wind speeds[J]. J Geophys Res, 1993,C11(98):20 275-20 285.
[7] HOLLAND G J. An analytic model of the wind and pressure profiles in hurricanes[J]. Mon Weather Rev, 1980,8(108):1 212-1 218.
[8] CARR L E, ELSBERRY R L. Models of tropical cyclone wind distribution and beta-effect propagation for application to tropical cyclone track forecasting[J]. Mon Weather Rev, 1997,12(125):3 190-3 209.
[9] YIN Xiao-bin, WANG Zhen-zhan, LIU Yu-guang, et al. Ocean response to Typhoon Ketsana traveling over the northwest Pacific and a numerical model approach[J]. Geophys Res Lett, 2007,34(21):L21606.
[10] POWELL M D. Evaluations of diagnostic marine boundary layer models applied to hurricanes[J]. Mon Weather Rev, 1980,19(108):758-766.
[11] LIU Yu-guang, SU Ming-yang, YAN Xiao-hai, et al. The mean-square slope of ocean surface waves and its effects on radar backscatter[J]. J Atmos Oceanic Tech, 2000,17(8):1 092-1 105.
[12] BROWN G S, STANLEY H R, ROY N A. The wind speed measurement capacity of space borne radar altimeter[J]. IEEE J Oceanic Engineer, 1981,2(6):59-63.
[13] CHELTON D B, MCCABE P J. A review of satellite altimeter measurement of sea surface wind speed: with a proposed new algorithm[J]. J Geophys Res, 1985,C3(90):4 707-4 720.
[14] CHELTON D B, WENTZ F J. Further development of an improved altimeter wind speed algorithm[J]. J Geophys Res, 1986,C12(91):14 250-14 260.
[15] ZHAO D, TOBA Y. A spectral approach for determining altimeter wind speed model functions[J]. J Ocean, 2003,59(2):235-244.
[16] GOURRION J, VANDEMARK D, BAILEY S, et al. A two-parameter wind speed algorithm for Ku-band altimeters[J]. J Atmos Oceanic Technol, 2002,12(19):2 030-2 048.
[17] JIN Tao-yong, LI Jian-cheng, WANG Zheng-tao, et al. Cross-calibration and validation of Jason-1 and T/P altimeter data in their synchronous cycles[J]. Journal of Geodesy and Geodynamics, 2007,27(6):72-76.
金涛勇,李建成,王正涛,等.JASON-1与T/P测高卫星同步段数据比较分析[J].大地测量与地球动力学,2007,27(6):72-76.
[18] LEFEVRE J M, BARCKICKE J. A significant wave height dependent function for TOPEX/POSEIDON wind speed retrieval[J]. Journal of Geophysical Research, 1994,C12(99):25 035-25 049.
