本文選題：CGCS2000 + 塊體劃分�。� 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：中國(guó)于2008年7月1日正式啟用2000國(guó)家大地坐標(biāo)系(CGCS200)目前,CGCS2000坐標(biāo)系只能提供對(duì)應(yīng)于國(guó)際地球參考框架ITRF97,2000.0歷元的靜態(tài)坐標(biāo),這對(duì)于廣泛采用的GPS精確定位(ITRF2005框架和當(dāng)前歷元)帶來(lái)不便,若要進(jìn)行歷元轉(zhuǎn)換,必須要有高分辨率的速度場(chǎng)資料�；谀壳癈GCS2000框架點(diǎn)的分布密度,還不能提供高密度的速度場(chǎng)信息,需要在中國(guó)大陸地區(qū)建立地殼運(yùn)動(dòng)速度場(chǎng)模型。通過(guò)對(duì)構(gòu)建速度場(chǎng)模型的方法進(jìn)行研究,為CGCS2000坐標(biāo)系維持提供高密度的速度場(chǎng)模型。 利用網(wǎng)絡(luò)工程(1999年～2009年)近十年觀測(cè)數(shù)據(jù)解算出的站點(diǎn)坐標(biāo)及速度值作為建立中國(guó)大陸地殼運(yùn)動(dòng)速度場(chǎng)模型的數(shù)據(jù)源,分別采用反距離加權(quán)、歐拉矢量、有限元、最小二乘配置等方法建立中國(guó)大陸地殼運(yùn)動(dòng)速度場(chǎng)模型。根據(jù)分析得到的不同的模型及適用范圍,綜合上述方法在各塊體構(gòu)建最優(yōu)速度場(chǎng)模型,計(jì)算中國(guó)大陸1°×1°格網(wǎng)點(diǎn)速度,建立格網(wǎng)速度場(chǎng)模型,介紹速度場(chǎng)模型的應(yīng)用方法。 基于河北省CORS網(wǎng)(2009-2012)的觀測(cè)資料,解算出河北區(qū)域地殼垂直運(yùn)動(dòng)速度場(chǎng),分析河北區(qū)域垂直形變,探討誘發(fā)河北區(qū)域地面沉降的原因。采用多面函數(shù)法建立河北區(qū)域垂直運(yùn)動(dòng)速度場(chǎng)模型,計(jì)算河北區(qū)域30'×30'格網(wǎng)點(diǎn)垂直運(yùn)動(dòng)速度值并提供等值線圖,為河北地區(qū)的經(jīng)濟(jì)建設(shè)、防災(zāi)減災(zāi)、地震等方面提供參考資料。
[Abstract]:China officially launched the 2000 National Geodetic coordinate system on July 1, 2008. At present, the CGCS2000 coordinate system can only provide the static coordinates corresponding to ITRF97 / 2000.0. This brings inconvenience to the widely used GPS precise positioning framework ITRF2005 and current epoch. For epoch conversion, it is necessary to have high resolution velocity field data. Based on the distribution density of CGCS2000 frame points at present, it is not possible to provide high density velocity field information, so it is necessary to establish a crustal movement velocity field model in the mainland of China. The method of constructing velocity field model is studied to provide a high density velocity field model for CGCS2000 coordinate system. In this paper, the data sources of crustal movement velocity field in mainland China are established by using the coordinates and velocities calculated from the network engineering (1999 ~ 2009) observation data in the past ten years. The inverse distance weighting, Euler vector and finite element method are used respectively. The velocity field model of crustal movement in mainland China is established by least square collocation and other methods. According to the different models and their application range, the optimal velocity field model is constructed in each block by the above methods, the 1 擄脳 1 擄grid velocity in mainland China is calculated, the grid velocity field model is established, and the application method of the velocity field model is introduced. Based on the observational data of CORS net in Hebei Province 2009-2012, the velocity field of vertical crustal movement in Hebei region is calculated, the vertical deformation in Hebei region is analyzed, and the causes of ground subsidence in Hebei region are discussed. The model of vertical motion velocity field in Hebei region is established by using multi-plane function method. The vertical motion velocity value of 30'脳 30'lattice dot in Hebei region is calculated and the isoline map is provided, which provides references for economic construction, disaster prevention and mitigation, earthquake and so on in Hebei area.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P227

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本文編號(hào)：1832198