本文選題：球面菱形格網(wǎng) + 中國海�。� 參考：《江西理工大學》2013年碩士論文

【摘要】：目前全球離散格網(wǎng)的研究主要側(cè)重于離散格網(wǎng)的構(gòu)建方案形變特征編碼及數(shù)據(jù)展示最著名的就是Google Earth，基于經(jīng)緯網(wǎng)正交剖分的格網(wǎng)但是對全球離散格網(wǎng)在數(shù)據(jù)的管理應用較多，而針對地學模型的研究較少本文通過對球面菱形格網(wǎng)系統(tǒng)研究，利用菱形離散格網(wǎng)編碼與地理坐標簡單的轉(zhuǎn)換關(guān)系球面格網(wǎng)拓撲關(guān)系一致等特點，實現(xiàn)在球面菱形格網(wǎng)上集成和管理中國海潮波系統(tǒng)模型相關(guān)數(shù)據(jù) 球面菱形格網(wǎng)是基于正多面體剖分，以菱形為格網(wǎng)單元的格網(wǎng)系統(tǒng)由于菱形結(jié)構(gòu)類似正方形格網(wǎng)，，它的幾何結(jié)構(gòu)簡單，具有一致的方向性徑向性和平移相合性在球面菱形格網(wǎng)上集成大尺度的地學模型數(shù)據(jù)有以下優(yōu)點：（1）可集成多源異構(gòu)數(shù)據(jù)中國海潮波系統(tǒng)中用到的數(shù)據(jù)是多種不同類型的地理空間數(shù)據(jù)，如柵格數(shù)據(jù)矢量數(shù)據(jù)，因此在統(tǒng)一的空間框架中集成各類數(shù)據(jù)尤為重要；（2）可為柵格和矢量數(shù)據(jù)在歐式空間的三維表達和建模方法提供新的思路 本文的主要研究內(nèi)容： 1.菱形格網(wǎng)系統(tǒng)：研究菱形離散格網(wǎng)的構(gòu)建方案，并對該剖分方案下的菱形離散格網(wǎng)進行形變特征分析，最后設計菱形離散格網(wǎng)的編碼 2.菱形格網(wǎng)數(shù)據(jù)集成方案：菱形離散格網(wǎng)對于地理空間數(shù)據(jù)的集成方法包括柵格數(shù)據(jù)的集成方法，和矢量數(shù)據(jù)（點線面）的集成方法 3.中國海潮波系統(tǒng)數(shù)據(jù)集成：在菱形離散格網(wǎng)中集成中國海潮波系統(tǒng)相關(guān)數(shù)據(jù)利用菱形格網(wǎng)數(shù)據(jù)集成方案，將中國海潮波系統(tǒng)中的多源異構(gòu)數(shù)據(jù)統(tǒng)一集成到菱形離散格網(wǎng)中，驗證菱形離散格網(wǎng)系統(tǒng)中編碼方案和數(shù)據(jù)集成方案的正確性 研究成果： 1.以內(nèi)接正八面體為網(wǎng)格基礎，設計了菱形離散格網(wǎng)的剖分方案，并通過形變特征分析，驗證該剖分方案的可行性 2.根據(jù)格網(wǎng)編碼理想化的標準，設計了菱形離散格網(wǎng)編碼，并推導出編碼與地理坐標的相互轉(zhuǎn)換關(guān)系 3.設計地理空間數(shù)據(jù)在菱形離散格網(wǎng)上的集成方案，并通過集成中國海潮波系統(tǒng)相關(guān)數(shù)據(jù)來充分驗證菱形格網(wǎng)系統(tǒng)可以作為統(tǒng)一的空間數(shù)據(jù)框架
[Abstract]:At present, the research of global discrete grid mainly focuses on the construction scheme of discrete grid, deformation feature coding and data display. The most famous one is Google Earth. the grid based on orthogonal division of longitude and latitude network is widely used in the data management of global discrete grid. In this paper, by studying the rhombic grid system of spherical surface, we use the characteristics of rhombic discrete mesh coding and the simple transformation relation of geographical coordinates, such as the topological relationship of spherical grid, and so on. Integration and management of data related to Chinese tidal wave system model on spherical rhombic grid The spherical rhombic grid is based on the regular polyhedron. The lattice system with the rhombus as the grid element has a simple geometric structure because the rhombus structure is similar to the square grid. The integration of large scale geoscientific model data on a spherical rhombic grid has the following advantages: 1) it is possible to integrate multiple sources of heterogeneous data. The data used in the Chinese tidal wave system are many different. Type of geospatial data, For example, raster data vector data, so the integration of all kinds of data in a unified spatial framework is particularly important. It can provide a new idea for the three-dimensional representation and modeling of grid and vector data in Euclidean space. The main contents of this paper are as follows: 1. Rhombic grid system: the construction scheme of rhombic discrete grid is studied, and the deformation characteristics of the rhombic discrete grid under the subdivision scheme are analyzed. Finally, the coding of rhombic discrete grid is designed. 2. Rhombohedral grid data integration scheme: the integration method of diamond discrete grid for geospatial data including raster data integration method and vector data (point line surface) integration method 3. Data Integration of China Sea Tide Wave system: integrating the relevant data of China Tidal Wave system in a rhombus discrete grid and using a rhombic grid data integration scheme, the multi-source heterogeneous data in the Chinese Tidal Wave system are integrated into a rhomboid discrete grid. Verify the correctness of coding scheme and data integration scheme in diamond discrete grid system Research findings: 1. Based on the inner octahedron, a rhombic discrete grid is designed, and the feasibility of the scheme is verified by the analysis of deformation characteristics. 2. According to the ideal standard of trellis coding, the rhombic discrete lattice coding is designed, and the relationship between coding and geographical coordinates is deduced. 3. The integration scheme of geospatial data on rhombic discrete grid is designed, and it is fully verified that the rhombohedral grid system can be used as a unified spatial data framework by integrating relevant data of Chinese tidal wave system.
【學位授予單位】：江西理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：P2-0;P731.2

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