中国近海海气界面热通量的反演
The remote of the sensible and latent heat fluxes in China coast
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摘要: 应用卫星SSM/I(Special Sensor Microwave/Imager)和AVHRR(Advanced Very High Resolution Radiometer)遥感资料,使用先进的海气通量计算方法(COARE3.0),计算了中国近海海气界面的感热和潜热通量.计算结果与南海西沙(2002年5月)和文昌(2000年10~11月)实测结果进行比较发现,应用遥感资料获得的海气界面热通量与实测结果非常一致.遥感获得的感热通量和潜热通量与西沙实测结果的均方根误差分别为2.9和29.9 W/m2,与文昌实测结果的均方根误差:2000年10月分别为4.42和43.05 W/m2,2000年11月分别为4.19和40.8 W/m2.与GSSTF2的结果相比,其时空分布变化特征基本一致.根据中国近海遥感资料(1988~2000年)的感热通量的分析,其均方根误差在10.1~12.4 W/m2之间,多年平均均方根误差为11.7 W/m2.潜热通量的均方根误差在34.8~49.7 W/m2之间,多年平均均方根误差为43.2 W/m2.由此可以说明,利用遥感获得的热通量可以用来进行中国近海海气相互作用的研究以及作为我国气候预测研究的重要依据.Abstract: The heat exchange interfaced ocean and atmosphere acts an important role in the climatic variation, but it has influenced on further research of the air-sea interaction because the observations over ocean are sparse.In this paper the satellite data from SSM/I and AVHRR are applied to estimate the sensible flux and latent flux on the air-sea interface over China coastal sea (CCS) with the advanced method (COARE3.0).Comparison with the in-situ observations in Xisha and Wenchang stations, the estimated results are reasonable well.the root mean square (RMS) of sensible flux and latent flux are 2.9 and 29.9 W/m2, respectively, contrasted with the observation data from Xisha Station in May 2002.The RMS of sensible flux are 4.42 W/m2 (October 2000) and 4.19 W/m2 (November 2000), the RMS of latent flux are 43.05 W/m2 (October 2000) and 40.8 W/m2 (November 2000) contrasted with Wenchang Station.The temporal and spatial distributions from this method are generally consistent with that of GSSTF2.Based on the analysis with the satellite data in CCS, the RMS is 11.7 W/m2 for sensible flux and 43.2 W/m2 for latent flux.It means that the sat ellite data could be taken as an efficient alternative for sparse observations over ocean and it has important role in the study of the air-sea interaction in CCS, as well it has been used as important basis on the climate forecast and research in China.
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Key words:
- China coastal sea /
- heat fluxes /
- satellite data
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阎俊岳,姚华栋,王强,等.西沙海-气通量观测资料初步分析[A].丁一汇等.南海季风爆发和演变及其与海洋的相互作用[M].北京:气象出版社,1999.147-151. 阎俊岳,姚华栋,李江龙,等.2000年南海季风爆发前后西沙海域海-气热量交换特征[J].海洋学报,2000,25(4):18-28. 曲绍厚.西太平洋热带海域动量、感热和潜热等湍流通量的观测研究[J].气象学报,1997,55(1):33-44. 蒋国荣,何金海,王东晓,等.南海夏季风爆发前后海-气界面热交换特征[J].气象学报,2004,62(2):189-199. 马耀民,王介民,张庆荣,等.南沙海域大气湍流通量输送特征分析[J].高原气象,1997,16(1):45-51. 钱粉兰,周明煜.太平洋海域海气热通量地理分布和时间变化的研究[J].海洋学报,2001,23(1):21-28. 姚华栋,任雪娟,马开玉.1998年南海季风试验期间海-气通量的估算[J].应用气象学报,2003,14(1):87-92. 丁一汇.地表通量的计算问题[J].应用气象学报,1997,8(suppl.):29-35. FAIRALL C W,BRADLEY E E,HARE J E,et al.Bulk parameterization of air-sea fluxes:updates and verification for the COARE algorithm[J].Journal of Climate,2003,16(15):571 -590. CHOU S H,SHIE C L,ATLAS R M,et al.Air-sea fluxes retrieved from special sensor microwave imager data[J].J Geophys Res,1997,102:12 705-12 726. CHOU S H,NELKIN E J,ARDIZZONE R,et al.Surface turbulent heat and momentum fluxes over global oceans based on the Goddard satellite retrievals,version 2 (GSSTF2)[J].J Climate,2003,16:3 256-3 273. 陈锦年.冬春南海海-气热量交换对长江中下游汛期降水的影响[J].海洋湖沼通报,1984,(2):15-21. -
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