data assimilation 中文意思是什麼

data assimilation 解釋
四維資料同化
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • assimilation : n. 1. 吸收（作用）。2. 同化（作用）。
  1. The 3dvar data assimilation system has the ability to assimilate gms - 5 cloud drifted winds and toys data. the numerical simulation experiments of typhoon processes are carried out using the 3dvar data assimilation system

    該同化系統有同化gms一5的紅外和水汽軌跡風數據和tovs溫濕數據的能力並可在pc機的linux系統下順利運行。
  2. The article designs the mesoscale numeric forecasting modek the scheme of objective analysis and four - dimensional data assimilation of global meteorologic data and the bidirectional nested scheme of mm5 model in detail

    對中期數值天氣預報模式、全球氣象資料客觀分析和四維同化方案，以及mm5模式的雙向嵌套方案進行了詳細設計。
  3. A study on quality control of data assimilation of satellite cloud image and its application in rainstorm forecast

    一種融合衛星反演水汽資料的方法在中尺度數值模式中的應用和數值試驗個例
  4. Results show that the aspects are obviously improved in the requires of functional qualities, computational accuracy, convengence and computational speed of algorithms. by this, the new technique of variational data assimilation maybe has wilder application in practice

    所得結論表明，與傳統的四維變分同化方法相比，本文提出的方法在函數性態要求、計算精度、演算法收斂性和計算速度方面有了明顯改善，使得變分同化技術有可能更廣泛地應用於實際業務。
  5. Developing data assimilation system of numeric predict model by using the adjoint code technique is one of new four - dimensional data assimilation methods

    用伴隨碼方法構造數值預報模式的伴隨同化系統是目前較新的四維同化方法之一。
  6. Developing data assimilation system of numeric predict model by the use of adjoint coding technique is one of the new four - dimensional data assimilation methods

    而用伴隨碼方法構造數值預報模式的四維變分伴隨同化系統則是目前國際主流的方法之一。
  7. The kalman filter is introduced and explored by assimilating sea temperature observations into one - dimensional numerical temperature model, which is decomposed into two parts, one part is the certain, the other is the random. then a data assimilation model is set up, it can assimilate sea temperature continuous observations data

    在此基礎上，利用kalman濾波原理，以一維海溫垂直分佈的數值模式為例，通過對原模式進行分解，得到確定性模式和隨機過程兩部分，繼而建立了一個可同化海溫連續觀測資料的數據同化模式。
  8. The study on the numerical simulation experiments to typhoon processes using 3dvar assimilation system also carries out. the conclusions are drawn after comparing the wind field, geopential height, relative humidity and several sounding profiles at sounding stations between control experiment and 3dvar data assimilation experiments. the results show that the model variables are more harmony in dynamic and physics to the experiments of 3dvar assimilation

    在對三維變分實驗與對應控制實驗的風場、位勢高度場、相對濕度場和幾個探空站探空曲線的模擬結果，及對所模擬的臺風路徑和路徑的偏差比較分析研究的基礎上，得到如下結果:各模式物理量之間在三維變分數據同化后的分佈，在動力上和物理上都更加協調和合理，更加符合實際觀測。
  9. A data assimilation experiment is carried out through combination the model with temperature measurements from the 165 e moorings on the equator, which collected by tao / triton ( tropical atmosphere and ocean project ) array of bugs

    並通過在赤道太平洋， 165 e ，熱帶大氣和海洋（ tropicalatmosphereandoceanproject ） ，即tao triton錨系浮標陣列觀測點，選取一段時間觀測資料，進行kalman濾波試驗。
  10. Land data assimilation and its applications

    陸面數據同化理論與應用
  11. The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model

    非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。
  12. In this thesis, studies were carried out on the theoretical schemes of data assimilation and their applications on sea fluid field, the three - dimensional baroclinic primitive equation model - hamburg shelf ocean model ( hamsom ) - being one part of the three ones that constitute the data assimilation ( da ) system. effective modification on schemes of da were obtained and applications on topex / poseidon ( t / p ) data results that covering the area of yellow sea and east sea were done. the final results became closer to the objective nature

    本文以三維陸架海模型（ hamsom ）作為數據同化系統的模型部分，深入研究了數據同化的理論方法和在海洋流場數據處理中的應用，對海洋場的數據同化方法提出了行之有效的改進，並將中國黃、東海區域內的topex poseidon （ t p ）數據和理論模式的計算結果相結合，進行同化處理，獲得了更接近於真實的結果。
  13. The study of the thesis is based on such background to carry out the satellite data assimilation methods connected with mm5 mesoscale meteorology model operational forecast, and to serve for the marine environmental forecast and prediction

    本論文的任務正是基於此背景，而開展對衛星氣象數據同化方法及其應用的研究，尋求同mm5中尺度氣象模式業務預報相結合的數據同化方法，為海洋環境預報服務。
  14. The research on marine atmospheric numerical forecast and data assimilation methods are very important parts in the project of " marine environmental forecasting and natural disasters reducing technology ", which belongs to the national key scientific projects of tenth five - year

    「十?五」國家重點科技攻關項目「海洋環境預報與減災技術」中把海洋氣象數值預報及資料同化方法的研究列入重點內容。
  15. Four - dimensional variation data assimilation ; aws precipitation assimilation ; meso - scale numerical model ; torrential rain simulation

    四維變分自動站降水量同化中尺度數值模式暴雨模擬
  16. Variational data assimilation with physical quot; on - off quot; processes

    過程的變分資料同化
  17. Data assimilation is an effective approach to improve the numerical forecasts skill

    資料同化是提高數值模式預報能力的有效方法。
  18. To that end, more involved data assimilation methods, e. g. three - dimensional or four - dimensional variational analysis and extended kalman filtering technique, will also be explored

    資料同化可能需要採用更深入的運算方法，如三維或四維變分法及增強卡爾曼濾波等技術。
  19. Many researchers have employed kalman filter ( kf ) scheme to data assimilation, which manifests its validity in blending the model results and data. however, the major difficulty in applying the kf scheme to data assimilation is its enormous size of the system, which leads to the suboptimum in practical applications

    本文根據「最大限度保留原來的主要信息，盡可能地簡化計算」的原則，應用『 svd分解推導了簡約形式的卡爾曼濾波方法，得到了該方法的簡約表達公式，同時，還得到了截斷誤差部分的伴隨發展公式，它可用於探討截差本身的動態發展。
  20. A two - dimensional variational ( 2dvar ) data assimilation system connected with mm5 model is set up which based on the augmented lagrangian algorithm of sasaki

    本論文建立了基於sasaki增廣lagrange運算元演算法並和mm5中尺度模式相結合的二維變分同化系統。
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