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墨西哥垂直基准转换格网。

Vertical datum transformation grids for Mexico.

机构信息

Centro de Geociencias, UNAM, Queretaro, Mexico.

出版信息

Sci Data. 2020 Jun 3;7(1):167. doi: 10.1038/s41597-020-0511-x.

DOI:10.1038/s41597-020-0511-x
PMID:32493975
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7270091/
Abstract

Mexico has used two vertical datums-the U.S. National Geodetic Vertical Datum of 1929 (NGVD29) and the North American Vertical Datum of 1988 (NAVD88). Because Mexico started using the NAVD88 as its vertical datum in 2015, most of Mexico's data is referenced to the NGVD29 and recent high resolution data are referenced to the NAVD88. Compounding this situation, satellite-derived Digital Elevation Models (DEMs) are referenced to the Earth Gravimetric Model 96 (EGM96), and no tools are currently available in Mexico to transform elevation data between the aforementioned vertical datums. To overcome this problem, this work presents the development of two surfaces to transform orthometric heights between the NGVD29 and NAVD88 or between the NGVD29 and EGM96 in Mexico. These surfaces can be used by any interested user to transform orthometric heights referenced to the aforementioned datums.

摘要

墨西哥使用了两个垂直基准面——美国 1929 年国家大地测量垂直基准面（NGVD29）和北美 1988 年垂直基准面（NAVD88）。由于墨西哥从 2015 年开始将 NAVD88 用作其垂直基准面，因此，墨西哥的大部分数据都参照 NGVD29，而最近的高分辨率数据则参照 NAVD88。更复杂的是，卫星衍生的数字高程模型（DEM）参照地球重力模型 96（EGM96），而墨西哥目前没有工具可在上述垂直基准面之间转换高程数据。为了解决这个问题，本工作提出了在墨西哥开发两个表面，以在 NGVD29 和 NAVD88 之间或在 NGVD29 和 EGM96 之间转换正高。任何有兴趣的用户都可以使用这些表面来转换参照上述基准面的正高。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/a1f23344b198/41597_2020_511_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/1227f6f4ef99/41597_2020_511_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/8a53f6118b17/41597_2020_511_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/98657b568a5f/41597_2020_511_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/ccc8d683eabe/41597_2020_511_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/ed8d6e35957b/41597_2020_511_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/ed9cafd1cf0d/41597_2020_511_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/b6c87acd9238/41597_2020_511_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/89087b6b5855/41597_2020_511_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/afb5e7372aeb/41597_2020_511_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/a1f23344b198/41597_2020_511_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/1227f6f4ef99/41597_2020_511_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/8a53f6118b17/41597_2020_511_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/98657b568a5f/41597_2020_511_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/ccc8d683eabe/41597_2020_511_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/ed8d6e35957b/41597_2020_511_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/ed9cafd1cf0d/41597_2020_511_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/b6c87acd9238/41597_2020_511_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/89087b6b5855/41597_2020_511_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/afb5e7372aeb/41597_2020_511_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a64f/7270091/a1f23344b198/41597_2020_511_Fig10_HTML.jpg

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