首页 | 本学科首页   官方微博 | 高级检索  
     检索      

块体空气动力算法的再计算湍通量与NCEP湍通量的比较
引用本文:史剑,赵栋梁,孙建.块体空气动力算法的再计算湍通量与NCEP湍通量的比较[J].中国海洋大学学报(自然科学版),2006,36(Z1):15-19.
作者姓名:史剑  赵栋梁  孙建
作者单位:1. 中国海洋大学物理海洋实验室,山东,青岛,266003;解放军理工大学气象学院,江苏,南京,211101
2. 中国海洋大学物理海洋实验室,山东,青岛,266003
基金项目:国家自然科学基金;国家研究发展基金
摘    要:以NCEP资料提供的水文气象参数作为输入量,利用4种块体空气动力算法重新计算了动量和热量通量,与相应的NCEP自身提供的湍通量进行了比较分析,发现再计算动量、感热和潜热通量的偏差值随风速增加而增大;在中高风速下,再计算动量通量的相对误差较小,其他情况下再计算动量、感热和潜热通量的相对误差最高能达到50%左右;相对误差一般随纬度的增大而增大,表明两者之间存在不协调性。研究还表明,改进后的NCEP2资料与NCEP1资料相比,这种不协调性并没有得到改善。

关 键 词:块体空气动力算法  湍通量  NCEP再分析资料
文章编号:1672-5174(2006)03Ⅱ-015-05
修稿时间:2005年10月9日

Comparison of Turbulent Fluxes: Bulk Aerodynamic Algorithms Recalculated Versus NCEP Reanalysis
SHI Jian,ZHAO Dong-Liang,SUN Jian.Comparison of Turbulent Fluxes: Bulk Aerodynamic Algorithms Recalculated Versus NCEP Reanalysis[J].Periodical of Ocean University of China,2006,36(Z1):15-19.
Authors:SHI Jian  ZHAO Dong-Liang  SUN Jian
Abstract:Four kinds of bulk aerodynamic algorithms are used to calculate the turbulent fluxes with the hydrological and meteorological variables of NCEP reanalysis data.Comparisons of the recalculated turbulent flux with NCEP turbulent flux show that the bias of recalculated momentum,sensible and latent heat fluxes increases with increasing wind speed;the relative error of recalculated momentum flux is smaller in the middle-high wind speed range,but the largest relative error of recalculated momentum,sensible and latent heat fluxes are about 50% in the other conditions.The relative error is increasing while the latitude varies from low to high.These analytical results indicate that there is an incompatibility between the recalculated turbulent flux and NCEP turbulent flux.This study also indicates that the improved NCEP2 data does not have a better compatibility than the NCEP1 data.
Keywords:bulk aerodynamic algorithms  turbulent fluxes  NCEP reanalysis data
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号