U N A V C O , A N O N - P R O F I T U N I V E R S I T Y - G O V E R N E D C O N S O R T I U M , F A C I L I T A T E S G E O S C I E N C E R E S E A R C H A N D E D U C A T I O N U S I N G G E O D E S Y.
We challenge ourselves to transform human understanding of the changing Earth by enabling the integration of innovative technologies, open geodetic observations, and research, from pole to pole.
March 30, 2015
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. Applied in real-time, this information is an essential input in models for prototype earthquake early warning systems.
February 23, 2015
During this installation and maintenance trip, UNAVCO collaborated with the Antigua and Barbuda National Office of Disaster Service (NODS), University of the West Indies (UWI) Trinidad, and the US Geological Survey (USGS) to install a new station and maintain two others.
February 11, 2015
UNAVCO worked with the Fundación Venezolana de Investigaciones Sismológicas (funvisis) to install two of six new COCONet GPS sites in Venezuela: sites CN39 - Quebrada Arriba and CN41 - El Baul.
January 27, 2015
This past fall, 15 2014 RESESS interns and RESESS alumni participated in the Geological Society of America (GSA) Annual Meeting in Vancouver, British Columbia and the Fall Meeting of the American Geophysical Union (AGU) in San Francisco, California.
January 20, 2015
Continuous GPS stations at Mount St. Helens installed in collaboration with the USGS Cascade Volcano Observatory (CVO) help scientists monitor and better understand Mount St. Helens both for risk assessment and for applying new knowledge to other volcanoes worldwide. PBO GPS station maintenance on Mount St. Helens in September 2014 focused on making three stations on the volcano more robust for transmitting data throughout the winter and bringing eight “silent” stations back online.
September 18, 2014
The Plate Boundary Observatory in the western United States consists of more than 1,100 continuously operating GPS stations deployed to record the Earth’s surface response to tectonics. Now the network is being used as a hydrological monitor. This study shows that the western U.S. lost about 240 gigatons of water in 2013-2014. The observatory is a sensitive hydrological monitor that can help manage water resources.
March 30, 2015
The 2010 magnitude 7.0 Haiti earthquake occurred on a secondary blind thrust fault, the Léogâne fault, rather than on the Enriquillo-Plantain Garden fault (EPGF). The best-fitting model simulation shows that the rupture did not trigger the EPGF or the Trois Baies fault, but there has been significant stress buildup on these faults, so future risks should be considered.
July 26, 2013
GPS data were used to detect volcanic plumes from eruptions of Mount Redoubt in Alaska. Unlike past research, this study relied on the signal strength, or signal to noise ratio (SNR), data. The new method is powerful because simple models can be used to quickly model SNR data and the SNR data are not sensitive to water vapor.
February 23, 2015
The North Antarctic Peninsula (NAP) has lost significant ice over decades and the amount and rate of land rebound as the ice is removed can be used to decipher the structure of the crust and upper mantle. Using vertical motion of the land recorded at the Palmer GPS site since 1995, augmented with other GPS data and a simple four-layer model yields a thicker crust and a more fluid upper mantle than expected.
February 6, 2013
The Mississippi Delta along the Gulf Coast of the United States is a major site of sediment deposition from the Mississippi River and conversely a major site of wetland loss from rising seas and subsidence. There is debate about how much and when the delta has risen or fallen due to deposition, subsidence, sea level change, and erosion.
February 18, 2015
Most of the ocean floor is unknown. Gravity models generated from satellite radar altimetry provide one of the only ways to map the height of the seafloor beneath all of the oceans. Years of data and thousands of satellite tracks have yielded unprecedented detail of major spreading ridges and thousands of seamounts.
March 7, 2013
Geoff Blewitt and Corne Kreemer of UNR’s Geodetic Laboratory have devised a new processing-based technique for evaluating site quality on an ongoing basis.
Last modified: Tuesday, 31-Mar-2015 18:02:48 UTC