Houston Net

Information about Houston Net

2024 HoustonNet Data Release

HoustonNet processes GPS data for the Harris-Galveston Subsidence District, covering approximately 250 permanent GPS stations across the greater Houston area. The East-North-UpDown time series data with respect to the Stable Houston Reference Frame (HRF20) and the IGS14 reference frame, spanning from 1993 to 2023, are compiled in the file named "HoustonNet_2024_Data_Release.tgz" (click to download).

The data process methods are addressed in the following files:

Wang, G.; Greuter, A.; Petersen, C.M.; Turco, M.J. (2022) Houston GNSS Network for Subsidence and Faulting Monitoring: Data Analysis Methods and Products. J. Surv. Eng., 148(4): 04022008. http://doi.org/10.1061/(asce)su.1943-5428.0000399

Wang, G. (2022). The 95% confidence interval for the GNSS-derived site velocities. J. Surv. Eng., 148(1): 04021030. http://doi.org/10.1061/(ASCE)SU.1943-5428.0000390.

Agudelo, G.; Wang, G.; Liu, Y.; Bao, Y.; Turco, M.J. (2020). GPS geodetic infrastructure for subsidence and fault monitoring in Houston, Texas, USA. The Tenth International Symposium on Land Subsidence (TISOLS), April 20-24, 2020, The Netherlands. Proc. Int. Assoc. Hydrol. Sci. 382: 11-18. https://doi.org/10.5194/piahs-382-11-2020

Fig. 1 Subsidence-rate contour lines derived from HoustonNet GPS observations from 2019 to 2023.

Fig. 2: Five-year average subsidence rates at HoustonNet GPS sites (2019-2023). Gray dots represent sites approaching subsidence cessation, while white dots denote sites experiencing rebound.

Fig. 3 University of Houston Coastal Center GPS Array: UHC0, UHC1, UHC2, UHC3, UHC4, and UHC5. UHC4 and UHC5 were installed in October 2024.