Recent progress of the three-dimensional coordinate datum modernization in the United States

doi:10.13474/j.cnki.11-2246.2021.0241

Abstract

Abstract: With the development of geodetic technology and the increasing demand for high-precision reference system, the National Geodetic Survey(NGS) plans to modernize the National Space Reference System (NSRS). This paper mainly introduces the reason of using plate fixed reference frame, and summarizes the basic strategy and characteristics of the three-dimensional coordinate datum modernization according to the blueprint for 2022. Comparing with the existing NAD83, the new datum is mainly improved as follows: ① Adopting the strategy of “plate fixed”, the number of plate reference frames is increased from 3 to 4. ② The reference frame mainly relies on active control points(CORS), and passive control will be reduced to secondary access. ③ The intra-frame velocity model(IFVM) will be provided. In addition, the Euler pole and IFVM need to be further determined.

Key words: modernization of NSRS, three-dimensional coordinate datum, plate fixed, CORS, IFVM

CLC Number:

P228

XU Wei, Lü Zhiping, LI Linyang, KUANG Yingcai, WANG Fangchao, YANG Kaichun. Recent progress of the three-dimensional coordinate datum modernization in the United States[J]. Bulletin of Surveying and Mapping, 2021, 0(8): 61-64,92.

References

[1] National Geodetic Survey. Blueprint for 2022, Part 1:geometric coordinates, NOAA technical report NOS NGS 62, 2017a[EB/OL]. (2017-09-21)[2020-07-13]. https://geodesy.noaa.gov/PUBS_LIB/NOAA_TR_NOS_NGS_0062.pdf.
[2] 金双根. GPS监测全球板块构造运动的研究[D]. 上海:中国科学院研究生院(上海天文台), 2003.
[3] JAGODA M, RUTKOWSKA M, SUCHOCKI C, et al. Determination of the tectonic plates motion parameters based on SLR, DORIS and VLBI stations positions[J]. Journal of Applied Geodesy, 2020, 14(2):121-131.
[4] 钱进, 韩志云, 林学峰, 等. GPS在地壳形变和板块运动监测中的应用[J]. 测绘与空间地理信息, 2013, 36(6):21-24.
[5] 朱新慧, 孙付平, 秦勇.组合GPS和VLBI数据建立板块运动模型[J]. 武汉大学学报(信息科学版), 2005, 30(7):604-608.
[6] LU Z P, QU Y Y, QIAO S B. Geodesy[M]. Berlin:Springer, 2014.
[7] 王华. 国家大地参考框架动态维持理论与方法研究[D]. 武汉:武汉大学, 2015.
[8] 程鹏飞, 王华, 成英燕.从2012国际测量师联合会大会看国际大地基准的新进展[J]. 测绘通报, 2012(S1):1-4.
[9] 党亚民, 章传银, 陈俊勇, 等. 现代大地测量基准[M]. 北京:测绘出版社, 2015.
[10] SELLA G F, STEIN S, DIXON T H, et al. Observation of glacial isostatic adjustment in "stable" North America with GPS[J]. Geophysical Research Letters, 2014, 34(2). DOI:10.1029/2006GL027081.
[11] HECK J, ROMAN D, SMITH D. Practical considerations for the determination of Euler pole parameters[EB/OL]. (2018-12-14) [2020-07-17]. https://www.ngs.noaa.gov/web/science_edu/presentations_library/files/heck-agu-eulerpole-2018.pdf.
[12] National Geodetic Survey. NSRS modernization news Issue20[EB/OL]. (2020-06-20) [2020-07-17]. https://geodesy.noaa.gov/datums/newdatums/NSRSModernizationNewsIssue20.pdf.
[13] National Geodetic Survey. NOAA technical memorandum NOS NGS 78: status report on the products and services of the upcoming modernized national spatial reference system[EB/OL]. (2019-06-20) [2020-07-18]. https://geodesy.noaa.gov/library/pdfs/NOAA_TM_NOS_NGS_0078.pdf.
[14] National Geodetic Survey. NSRS modernization news issue 18[EB/OL]. (2020-01-20)[2020-07-20]. https://geodesy.noaa.gov/datums/newdatums/NSRSModernizationNewsIssue18.pdf.
[15] National Geodetic Survey. NSRS modernization news issue 12[EB/OL]. (2018-07-10) [2020-07-20]. https://geodesy.noaa.gov/datums/newdatums/NSRSModernizationNewsIssue12.pdf.
[16] SMITH D A, ROMAN D R, CHILDERS V A, et al. Modernizing the datums of the national spatial reference system[J]. Marine Technology Society Journal, 2015, 49(2): 151-158.
[17] SMITH D A, BILICH A L. NADCON5: your tool for easy, consistent coordinate transformations[EB/OL]. (2016-09-08)[2020-07-20]. https://www.ngs.noaa.gov/web/science_edu/presentations_library/files/agu2016_bilichsmith.pdf.
[18] ROMAN D. Input for intra-frame velocity models for the US NSRS in 2022[C]//Proceedings of the 4th Joint International Symposium on Deformation Monitoring (JISDM). Athens: [s.n.], 2019.
[19] SNAY R A, FREYMUELLER J T, CRAYMER M, et al. Modeling 3D crustal velocities in the United States and Canada[J]. Journal of Geophysical Research, 2016, 121(7): 5365-5388.