Seismic and geodetic facilities are geographically dispersed and they manage and support continuous observations from distributed sensor packages. UNAVCO and IRIS are the two organizations that support the geosciences facilities worldwide. UNAVCO manages thousands of GPS sites. IRIS is a consortium of 121 US universities and 123 International members and dedicated to the operation of science facilities for the acquisition, management, and distribution of seismological data.
We also identified research on projects involving the expansion of the AfricaArray (AA) Seismic Network with continuous Global Positioning System (CGPS) instruments fitted with meteorological (met) sensors by UNAVCO/Penn State University and AA to create a multidisciplinary research network for the broader Earth science community. AfricaArray Seismic Network participates with a total of 53 stations in 17 countries (Raveloson, 2017):
- 29 seismic stations only
- 20 collocated seismic, GPS and weather stations
- 2 collocated GPS, weather
- 1 collocated seismic, GPS
- 1 weather station only
UNAVCO is a non-profit university-governed consortium that facilitates geoscience research and education using Geodesy. The UNAVCO academic and research community seeks to broaden human understanding of the changing Earth by integrating technologies, open geodetic observations, and research. UNAVCO is funded by the National Science Foundation (NSF) and The National Aeronautics and Space Administration (NASA) and supports research around the world.