Message Board

Respected readers, authors and reviewers, you can add comments to this page on any questions about the contribution, review,        editing and publication of this journal. We will give you an answer as soon as possible. Thank you for your support!

Name
E-mail
Phone
Title
Content
Verification Code
Turn off MathJax
Article Contents

GUO Xinwei, GUO Chunxi, NIE Jianliang, WANG Haitao, TIAN Jie. Vertical Movement Model in Chinese Mainland Based on First Order Leveling Results[J]. Geomatics and Information Science of Wuhan University.
Citation: GUO Xinwei, GUO Chunxi, NIE Jianliang, WANG Haitao, TIAN Jie. Vertical Movement Model in Chinese Mainland Based on First Order Leveling Results[J]. Geomatics and Information Science of Wuhan University.

Vertical Movement Model in Chinese Mainland Based on First Order Leveling Results

Funds:

The National Natural Science Foundation of China(41774004, 41574003, 41904040).

  • Available Online: 2022-02-19
  • Objectives: The national first order leveling results are valuable data for studying the vertical movement of crust in Chinese mainland. The trend of vertical movement in the past 50 years is analyzed with three period results of first order leveling network of China. Methods: Firstly, on the same reference datum, a static adjustment method is used to calculate the height of the first order leveling points. By analyzing the location, height difference and record of leveling points, the coincidence points of different period results are obtained. And then the velocity of leveling coincidence points can be calculated by height difference and time span. Secondly, the residual distribution of checking points and fitting points is used to evaluate the pros and cons of the interpolation methods, such as Hardy function interpolation, Kriging interpolation and inverse distance weighted method, one of which is determined to establish vertical movement model. Finally, the vertical movement model in Chinese mainland is obtained with the method of Kriging interpolation. Results: The residual distribution of checking points and fitting points shows that the fitting precision of Hardy function is slightly lower but more stable than other methods. And the precision of inverse distance weighted method is slighter higher, but there are some outlier in the fitting results. The valid fitting region of triangulation with linear interpolation is the smallest convex polygon consisting of the outermost leveling points, so the blank area near the boundary of Chinese mainland is existed. The precision is basically equal between Kriging interpolation and minimum curvature interpolation, but from the perspective of the residual, Kriging interpolation is slighter better. Conclusions: From the vertical movement model, the characteristic of vertical movement is qualitatively analyzed:in the past 50 years, the North China Plain, Jiangsu-Shanghai area, Fen-Wei basin, Xinjiang and Hainan are subsiding. Among them, the North China Plain and Jiangsu-Shanghai area are severe subsiding condition with velocity more than 40 mm/a. The south of Tibet, North-east China, Fujian and north of Shaanxi are uplifting, and the trend of uplifting is kind of fierce in the south of Tibet and east of North-east China. Other areas such as South China are relatively stable.
  • [1] Teferle F N, Bingley R M, Williams S D, et al. Using Continuous GPS and Absolute Gravity to Separate Vertical Land Movements and Changes in Sea-Level at Tide-Gauges in the UK[J]. Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2006, 364(1841):917-930
    [2] Kamil K, Jacek R, Marek M. Analysis of Vertical Movement Modeling through Various Interpolation Techniques[J].ResearchGate,2010, 7(4):399-408
    [3] Tsai V J D. Delaunay Triangulations in TIN Creation:An Overview and a Linear-Time Algorithm[J]. International Journal of Geographical Information Systems, 1993, 7(6):501-524
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(200) PDF downloads(16) Cited by()

Related
Proportional views

Vertical Movement Model in Chinese Mainland Based on First Order Leveling Results

Funds:

The National Natural Science Foundation of China(41774004, 41574003, 41904040).

Abstract:  Objectives: The national first order leveling results are valuable data for studying the vertical movement of crust in Chinese mainland. The trend of vertical movement in the past 50 years is analyzed with three period results of first order leveling network of China. Methods: Firstly, on the same reference datum, a static adjustment method is used to calculate the height of the first order leveling points. By analyzing the location, height difference and record of leveling points, the coincidence points of different period results are obtained. And then the velocity of leveling coincidence points can be calculated by height difference and time span. Secondly, the residual distribution of checking points and fitting points is used to evaluate the pros and cons of the interpolation methods, such as Hardy function interpolation, Kriging interpolation and inverse distance weighted method, one of which is determined to establish vertical movement model. Finally, the vertical movement model in Chinese mainland is obtained with the method of Kriging interpolation. Results: The residual distribution of checking points and fitting points shows that the fitting precision of Hardy function is slightly lower but more stable than other methods. And the precision of inverse distance weighted method is slighter higher, but there are some outlier in the fitting results. The valid fitting region of triangulation with linear interpolation is the smallest convex polygon consisting of the outermost leveling points, so the blank area near the boundary of Chinese mainland is existed. The precision is basically equal between Kriging interpolation and minimum curvature interpolation, but from the perspective of the residual, Kriging interpolation is slighter better. Conclusions: From the vertical movement model, the characteristic of vertical movement is qualitatively analyzed:in the past 50 years, the North China Plain, Jiangsu-Shanghai area, Fen-Wei basin, Xinjiang and Hainan are subsiding. Among them, the North China Plain and Jiangsu-Shanghai area are severe subsiding condition with velocity more than 40 mm/a. The south of Tibet, North-east China, Fujian and north of Shaanxi are uplifting, and the trend of uplifting is kind of fierce in the south of Tibet and east of North-east China. Other areas such as South China are relatively stable.

GUO Xinwei, GUO Chunxi, NIE Jianliang, WANG Haitao, TIAN Jie. Vertical Movement Model in Chinese Mainland Based on First Order Leveling Results[J]. Geomatics and Information Science of Wuhan University.
Citation: GUO Xinwei, GUO Chunxi, NIE Jianliang, WANG Haitao, TIAN Jie. Vertical Movement Model in Chinese Mainland Based on First Order Leveling Results[J]. Geomatics and Information Science of Wuhan University.
Reference (3)

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return