planetary boundary layer 中文意思是什麼

planetary boundary layer 解釋
地表邊界層
  • planetary : adj. 1. 【天文學】行星的；由於行星作用的。2. 流浪的，不定的。3. 俗世的，現世的；地球的。4. 【機械工程】行星齒輪的。
  • boundary : n 邊界，疆界，限界 （between）;（球場）邊線；界標；界限，范圍，分野。 aboundary dispute 邊界糾紛...
  • layer : n 1 放置者，鋪設者，計劃者。2 【賽馬】（一般）賭客。3 產卵的雞。4 【軍事】瞄準手。5 層；階層；地...
  1. Planetary boundary layer ( pbl ) parameterization is an essential part of numerical weather prediction model. there have been many pbl schemes applied in all kinds of models, such as mm5, wrf and so on

    在中尺度模式、大氣環流模式、中長期天氣預報模式及模擬氣候變化的數值模式中，人們已經注意到邊界層所起的作用。
  2. Refined grids were utilized in a large - eddy simulation model for obtaining high - resolution planetary boundary data and analyzing surface layer turbulence. simulation results showed that refined meshes reduced turbulent contributions of subgrid scales, sensitivity of simulation results to sgs parameters decreased, and features of the whole boundary layer were explicitly resolved better. results also revealed flux - profile relationship correctly in surface layer and a good agreement of turbulent velocity characters with observation. therefore, it concluded that the les method was able for simulation of surface layer flow and turbulence, and might be used for further applications

    採用加密網格的大渦模式獲取邊界層風溫場的高解析度模擬結果，並據以分析近地面層大氣的湍流特性。結果表明，較小的網格尺度使次網格湍流貢獻率大為降低，模式計算結果對次網格參數的依賴性減小，邊界層整體特徵得到更好的反映。同時，模擬出的近地面層通量廓線關系及湍流速度特徵與實際觀測結果吻合甚好，表明模式具有反映近地面層平均運動和湍流特性的能力。
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