GPS geodetic infrastructure for subsidence and fault monitoring in Houston, Texas, USA
<p>Houston, Texas, is one of the earliest urban areas to employ Global Positioning System (GPS) technology for land subsidence and fault monitoring. As of 2020, the University of Houston and the Harris-Galveston Subsidence District have integrated over 230 permanent GPS stations into their rou...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-04-01
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| Series: | Proceedings of the International Association of Hydrological Sciences |
| Online Access: | https://www.proc-iahs.net/382/11/2020/piahs-382-11-2020.pdf |
| Summary: | <p>Houston, Texas, is one of the earliest urban areas to employ
Global Positioning System (GPS) technology for land subsidence and fault
monitoring. As of 2020, the University of Houston and the Harris-Galveston
Subsidence District have integrated over 230 permanent GPS stations into
their routine GPS data processing for regional subsidence and fault
monitoring. This article summarizes the GPS geodetic infrastructure in the
Greater Houston region. The infrastructure is comprised of two components: a
dense GPS network (HoustonNet) and a stable regional reference frame
(Houston20). Houston20 is realized by 25 long-history (<span class="inline-formula">>8</span> years)
continuous GPS stations located outside the subsiding area and is aligned in
origin and scale with the International GNSS Reference Frame 2014 (IGS14).
The stability of the regional reference frame is below 1 mm yr<span class="inline-formula"><sup>−1</sup></span> in all
three directions. GPS-derived ground deformation rates (2010–2019) within
the Greater Houston region are also presented in this article.</p> |
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| ISSN: | 2199-8981 2199-899X |