topographic distribution 中文意思是什麼

topographic distribution 解釋
地形分佈
  • topographic : adj. 地誌的，地形（學上）的；地形測量的。 a topographic drawing 地形圖。 a topographic machine 【航空】歪斜矯正機。
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. During the course of the research, the criterions of the interpolation effect are mean error ( me ), mean absolute error ( mae ), root mean squared interpolation error ( rmse ) and the difference of mean square deviation between the measured and the estimated surface air temperature. the conclusions are as follows : ( 1 ) by contrasting the gaussian weighted model associated with the error modification with the gaussian weighted model, the error modification is proved to considerably ameliorate the precision of spatial interpolation ; ( 2 ) on the base of the gaussian weighted model, taking altitudinal effect into account can reflect the trend in which temperature changes according to the topographic altitude and may ameliorate the precision of spatial interpolation correspondingly and apparently, which indicates that topographical effect on the preciseness of spatial interpolation can not be disregarded in terms of the region with complicated topography ; ( 3 ) the map of daily surface air temperature distribution, using the modified gaussian weighted model a and b, can accurately reflect the temperature - changing - with - topographical - altitude trend. among them, the better is the model a, whose me is below 0. 03 ?

    在此過程中，採用平均誤差（ me ） ，平均絕對誤差（ mae ） ，插值平均誤差平方的平方根（ rootmeansquaredinterpolationerror ，簡稱rmsie ） ，插值前後測站要素值的均方差（ meansquaredeviation ，簡稱msd ）差值作為判定插值效果的標準，得出如下結論：通過高斯權重法與結合逐步訂正的高斯權重法的對比，說明結合逐步訂正方案的高斯權重法可大大提高地面日氣溫的插值精度；在高斯權重法中加入海拔影響項可以反映出溫度隨地形高度的變化趨勢，同時也能較大地提高地面日氣溫的空間插值精度，說明在地形復雜的區域，地形影響在插值精度中是不可忽略的；對于高斯權重法的兩種改進方案得到的地面日氣溫分布圖都能很好地反映出表面大氣氣溫隨地形高度的變化趨勢。
  2. Study on the topographic variation pattern of vegetation distribution

    四川臥自然保護區植被的地形分異格局研究
  3. Two temporal satellite images were used for vegetation mapping of wolong nature reserve. through overlay analysis of the vegetation maps and dem data, the authors studied the distribution pattern variation of different vegetation types along the topographic gradients. the study resulted that : the extensive deforestation activity beginning at medium 1960 s made intensively impact on the vegetation distribution pattern, and the aftereffect can be distinguished clearly even in medium 1980 s

    北京大學城市與環境學系，北京， 100871摘要：利用臥自然保護區1987年和1997年兩個時段的衛星遙感影像進行植被制圖，並與dem模型數據進行疊圖分析，研究不同植被類型在各種地形梯度上的分佈格局及變化特點。
  4. Nondimensional distribution index was able to describe the spatial pattern of each landscape patch type and indicate the affection of the topography on the change of the pattern. for excluding the disturbance of the area, distribution index can describe the difference between the actual distribution and the standard distribution of each patch type on the topographic gradient. and according to this, kinds of comparative analyses were availed

    運用地形分佈指數克服了不同地形因子各梯度內面積的差異，同時也消除了各景觀斑塊類型的面積比重差異，能夠準確地反映不同景觀斑塊類型在一定的地形因子梯度上的實際分佈情況與標準分佈的偏差，使分析不受面積的影響，其結果具有較好的可比性和可解釋性；且通過對優勢分佈范圍、分佈趨勢線特徵的分析，能夠獲得森林景觀空間分佈格局及其變化的多種信息。
  5. Study on the topographic variation pattern of vegetation distribution in wolong nature reserve, sichuan province

    四川臥自然保護區植被的地形分異格局研究
  6. On the basis of summarization of the simulating technology of sonar signal, the paper brings forward the mathematics models of radiate noises of ships and torpedo, and simulates in computer ; tests the correctness of some pivotal methods through the simulation, on the basis of which, system scheme being brought out ; a parallel processor with twelve sharcs, combining with parallel processing theory and topographic configuration, is used to realize the algorithm of noise simulation on the basis of research on optimum distribution of algorithm and method of embedment in real time ; at last, gui, realized with vc + + language, is used to set parameters and control the whole parallel system flexibly and conveniently

    本文在綜述聲納信號模擬技術的基礎上，首先提出艦船和魚雷輻射噪聲的模擬數學模型，並進行了計算機模擬實現；通過計算機模擬驗證了一些關鍵技術的正確性，並由此提出系統實時實現方案；構造了一個12個處理器的并行處理機? sharc陣列，結合併行處理理論和sharc陣列的拓撲結構研究了有關模擬演算法的最優分配及其嵌入整個聲納系統的方法，實時實現了噪聲模擬演算法。最後，使用vc + +語言編寫人機界面，靈活、方便地進行參數設置以及對整個并行處理系統進行控制。
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