G - geoid 中文

geoid n.【地質學；地理學】1.像地體，大地水平面。2.地球體...

geologic
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；提出了建立適于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，并進行了精度估計，編制了相應的軟件。
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于地球科學研究、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采用，目前正朝著可視化、動態化、三維化方向發展。
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采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。
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) 。
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，并通過實例分析了兩種方法的誤差評定結果。
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并做了實驗和精度分析。
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。
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布均勻的gps水準聯測點，建立杭州濱江區高精度、高分辨率的似大地水準面數學模型的原理和方法。
The main factors to influence the geoid s rising and falling of the mountainous districts are the acute change of the landform and the asymmetry of the mass of landform and the density of rocks 影響高原山區大地水準面起伏變化的主要原因是地形的劇烈變化，地形量和巖石密度分布的不均勻。
Finally , the ocean geoid of china is worked out with about six months topex / poseidon data 最后用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。
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。
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
Geoid tangent plane 大地體切面
Surface of the geoid 大地平均面
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
Undulation of the geoid 大地水準面的起伏
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
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。
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。

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geoid

geoid n.【地質學；地理學】1.像地體，大地水平面。2.地球體...

geologic

Finally , the ocean geoid of china is worked out with about six months topex / poseidon data 最后用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。

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。

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

Geoid tangent plane 大地體切面

Surface of the geoid 大地平均面

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

Undulation of the geoid 大地水準面的起伏

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

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。

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。