节点文献
基于EGM2008和SRTM模型确定的新疆地区似大地水准面及其精度评估
The quasi-geoid of Xinjiang area determined based on the EGM2008 and SRTM model and its accuracy evaluation
【摘要】 基于EGM2008重力场模型(2190阶)和SRTM数字高程模型,在Molodensky理论框架下,确定了新疆地区15′×15′似大地水准面,并与新疆地区15个点位的实测GPS/水准数据进行了比较,结果表明,所确定的新疆地区15′×15′似大地水准面的精度约为0.2m。
【Abstract】 Based on the gravity field model EGM2008(with degree 2190)and the digital elevation model SRTM,under the frame of Molodensky theory,a 15’×15’ quasi-geoid of Xinjiang area was determined.By comparing with 15 GPS/leveling points distributed separately in Xinjiang area,it is demonstrated that the accuracy of the determined 15’×15’ quasi-geoid of Xinjiang area is 0.2m.
【基金】 国家自然科学基金项目(编号:40974015,40637034);国家863项目(编号:2006AA12Z211)
- 【文献出处】 测绘科学 ,Science of Surveying and Mapping , 编辑部邮箱 ,2009年S2期
- 【分类号】P223.0
- 【被引频次】8
- 【下载频次】277