Project Overview In August and September of 2016, the Chimney Fire burned through 46,000 acres of San Luis Obispo County near the central California coast. In addition to destroying dozens of homes and structures, the fire also swept over P278 Clarke Mountain, a GNSS station located on a high ridge within the burn zone. While … Continued
Project Overview NASA’s Space Geodesy Project (SGP) was initiated in order to develop and maintain a global network of next-generation space geodetic observing instruments. The network will be comprised of core sites around the globe that utilize four primary space-geodetic techniques: Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), Doppler Orbitography by Radiopositioning Integrated … Continued
Project Overview The National Geodetic Survey (NGS), an office of NOAA’s National Ocean Service, manages a network of Continuously Operating Reference Stations (CORS) that provide Global Navigation Satellite System (GNSS) data in support of positioning, meteorology, space weather, and geophysical applications throughout the United States, its territories, and several foreign countries (ref: CORS website). In September, … Continued
Project Overview This project came about quickly after the 3 September 2016, Mw 5.8, Pawnee, Oklahoma, earthquake. It is collaboration between the University of Memphis, University of Oklahoma (OU), and Oklahoma Geological Survey (OGS). The project deployed eight GPS stations around the causative Sooner Lake fault, in order to measure the years-long relaxation of the … Continued
Project Overview As part of the ongoing COCONet installation phase, one continuously operating GPS site was installed on Redonda Island in the West Indies of the Caribbean ocean. The island belongs to the nation of Antigua but its nearest neighbor is Montserrat, located 12 miles due southeast. Redonda is an uninhabited volcanic remnant characterized by … Continued
Project Overview UNAVCO engineers in collaboration with the City of Sitka installed station AKSI in Sitka, Alaska, on the historical Sitka Post Office. The station is part of the National Geodetic Survey (NGS) CORS network that provides GNSS data in support of three-dimensional positioning, meteorology, space weather, and geophysical applications. Surveyors, GIS users, engineers, scientists, … Continued
Project Overview The 2015 season in Alaska was defined by resource sharing and cooperative work with a number of agencies. The largest collaborative effort was a week-long project based in Homer, Alaska with work on and around Augustine volcano. UNAVCO PBO field engineers worked with staff from the USGS Alaska Volcano Observatory (AVO) and IRIS, … Continued
Project Overview Just before noon local time on April 25, 2015 at 11:56 am, a moment magnitude (Mw) 7.8 earthquake struck central Nepal and was felt in the capital, Kathmandu. Please see the U.S. Geological Survey (USGS) summary and Nepal’s National Seismological Centre summary of the Gorkha earthquake for more information about the event and aftershocks. Hours after the … Continued
Project Overview Determining how the Caribbean plate moves with respect to the neighboring North America and South America plates has been a major challenge. Geologic plate motion models using seafloor magnetic anomaly rates, transform fault azimuths, and slip vectors are challenging due to sparse data. The only rates come from the Cayman Spreading Center, and … Continued
Project Overview Between December 2014 and February 2015, UNAVCO installed 10 accelerometers at existing Plate Boundary Observatory (PBO) GPS sites in the San Francisco Bay Area. Accelerometers in combination with high-precision GPS data provide a new interdisciplinary data type: full spectrum displacements based on an optimal combination of geodetic and seismic data. These can significantly … Continued