it is showed that the heat transport crossing the equator has the similar magnitude and the same period of one year, compared with that of 10 n in arabian sea . by contrast, the heat transport across 10 n in bay of bengal has a much smaller value with a prominent semiannual period; there are tight relationship between integrated zonal wind stress in one latitude of the indian ocean north of 7 n and the total heat transport across that latitude, as well as the total net surface heat flux north of that latitude . the maximum correlation coefficient is less than-0.5 結果表明越赤道和越10on阿拉伯海的熱輸送量大小具有可比性,且有相同的年循環(huán)特征,而10on孟加拉灣緯度的經向熱輸送較小,且具有半年變化周期;儼s以北印度洋任一緯度上的緯向風應力異常與此緯度上的經向熱輸送異常以及此緯度以北印度洋總的海面凈熱通量異常有很好的相關關系,相關系數最大可達一0.5以上。
in boreal summer, the entrainment dominates the western part of bay of bengal and most part of arabian coast; net surface heat flux is always a dominant factor controlling the sst variation in bay of bengal throughout a year . difference physical processes control the temperature of the mixed layer in different regions 在夏季,整個阿拉伯沿岸和孟加拉灣西部混合層底的卷夾作用占優(yōu)勢;海面凈熱通量在孟加拉灣sst的變化中始終是主要的影響因子;對幾個典型區(qū)域的研究表明,不同的區(qū)域的混合層溫度有著非常不同的變化機制。
a transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary-layer over urban and rural terrains . the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on . and the differences between urban area, suburban area and rural area have been compared . this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage . the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day . parameters used in this model aim at beijing city, and the time is at the beginning of september . to other cities, or other time, the parameters should be adjusted accordingly . in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains 模式主要依賴于以下參數和物理量:地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數云量等參數。結果表明,本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等,以及它們的日變化。該模式所取參數主要針對北京市,時間為九月初,對于其他城市,參數應作相應的調整。