geoid 中文意思是什麼

geoid 解釋
n. 名詞 【地質學；地理學】1. 像地體，大地水平面。
2. 地球體，地球形。

  1. Problem of piecing together between china mainland - geoid and altimetry - derived geoid in china sea area

    我國海域大地水準面與大陸大地水準面的拼接研究
  2. The actual equipotential surface of the earth that corresponds to sea level is called the geoid.

    相當海平面的地球實際等位面稱為重力平面。
  3. For cartographical purposes heights are necessarily recorded above the geoid (sea-level).

    就制圖的目的來說，所以需記錄的高程是高出大地水準面（海平面）的高程。
  4. Determination of fuxin quasi - geoid without gravity data

    無重力數據情況下阜新似大地水準面的確定
  5. Undulation of the geoid

    大地水準面的起伏
  6. Determination of quasi - geoid in mainland china using geopotential model and gps leveling data

    水準數據確定我國大陸似大地水準面
  7. Surface of the geoid

    大地平均面
  8. Geoid tangent plane

    大地體切面
  9. But the data of them are ample so it will be effective to dive geoid by them

    而地形資料和巖石密度資料既充足又可靠，用它們來精化高原山區的大地水準面會獲得良好的效果。
  10. Finally, the ocean geoid of china is worked out with about six months topex / poseidon data

    最後用20個周期的topex / poseidon數據解算出了中國局部地區海洋大地水準面起伏。
  11. Geoid is the reference datum of spatial data collection, so how to ascertain the geoid, that of all over the world, that of one nation, or that of one zone, is always an nuclear task of surveying science but there is not the quick and automatic solution. the density of the required data of astronomical measurement, gravimeter survey and geodesic survey is not satisfied

    大地水準面是空間測量數據外業採集所依據的參考基準面。確定全球、一個國家、一個地區的大地水準面的形狀始終是測繪科學的一項核心內容，一直未能有快速、簡潔、自動的解決方法。需要的天文測量、重力測量、大地測量等數據的密度無法滿足其需要。
  12. This paper introduces the signif9cance of geoid refining and three methods for refining geoid, and by using the abnormal height of gps / leveling point, sets up several mathematic models of local geoid and makes the experiments and precision analysis

    介紹了大地水準面精化的意義和精化大地水準面的3種方法，用gps /水準重合點的高程異常，建立了區域大地水準面的幾種數學模型並做了實驗和精度分析。
  13. Based on systematical study of each constituent of iss, the foundation, computation and precision analysis of the models of geoid, sea surface topography, mean sea surface and ocean tide are mainly discussed ; the conceive of mean sea surface height model and ocean tidal model suitable to chinese near sea and its neighborhood is provided ; two kinds of iss model are derived out

    本文在系統研究瞬時海面高各組成要素的基礎上，主要討論了大地水準面模型、海面地形模型、平均海平面模型和海洋潮汐模型的建立、計算以及精度評價等問題；提出了建立適於我國近海及鄰域平均海平面模型和海洋潮汐模型的設想；綜合得出了兩種瞬時海面高模型，並進行了精度估計，編制了相應的軟體。
  14. Now the 2d precision of spatial points is very great, but because by usual correlation fitting method we can transfer gps ellipsoidal height into normal height of the local geoid is considered as mathematical curve plane, it is not conform the fact of mountainous districts so the precision of elevation is so small that it is not satisfied with the requirement of leveling

    目前，地面點的平面位置確定精度已相當高，但高程精度始終未能達到水準測量的要求，因為將gps大地高轉化為水準正常高的擬合推估方法是將局部大地水準面視為數學曲面，常常與實際情況差異較大（特別在西部山區差異更大） 。
  15. From the two points of view of the remove - restore principle and the fitting of the remnant error during the condensing of the local geoid, this paper deduces the direct and the in direct methods assessing the precision of gravity geoid, and analyzes the error estimation results of the two methods

    摘要從移去恢復法原理以及局部大地水準面精化殘差擬合兩個角度，分別得到了重力大地水準面精度估計的直接法與間接法，並通過實例分析了兩種方法的誤差評定結果。
  16. As a mature technology for its static and accurate positioning, is widely used in the fields of geoscience study, geoid survey and other survey applications, which has brought about a new revolution for the methods and ways of survey. the digital photogrammetry can effectively reduce the work of the field survey and alleviate the labor intensity. its output results, such as digital ground model and digital products, can be widely used for engineering construction ; the outlook of its application has a bright future

    Gps靜態精密定位作為一種成熟技術已廣泛應用於地球科學研究、大地測量等各個測繪應用領域，給測量手段和方式帶來了一場新的革命；數字攝影測量技術可以有效減少野外測量的工作量，減輕勞動強度，其輸出成果數字地面模型及其數字化產品，與工程建設結合最為緊密，應用前景非常廣闊；遙感地質技術可為公路規劃和設計從宏觀上提供準確可靠的工程地質資料； cad作為一種可以極大地提高設計效率的有效手段已經被廣泛採用，目前正朝著可視化、動態化、三維化方向發展。
  17. This paper presents a principle and method for building up the mathematical models of the quasi - geoid with high resolution and high accuracy by gps leveling in binjiang, hangzhou

    摘要介紹了通過布設足夠密度且分佈均勻的gps水準聯測點，建立杭州濱江區高精度、高解析度的似大地水準面數學模型的原理和方法。
  18. The geoid is used to be regarded as the theoretic global vertical reference. the actual national height references are regional mean sea levels determined by tide gauge station. the difference between them is apparent

    大地水準面作為全球高程測量的理論基準面，在現實工作中，國家或者地區高程系統的起算面是利用驗潮方法來確定局部平均海平面的，兩者之間的差距是顯而易見的。
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