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.
August 28, 2015
Many governmental and research organizations are increasingly setting up GNSS stations worldwide, and are often open to sharing these data but lack the tools that would support data sharing. UNAVCO developed the Dataworks for GNSS software with NSF funding to the COCONet project to address this need.
September 17, 2015
The September 16, 2015 Mw 8.3 earthquake west of Illapel, Chile, occurred as the result of thrust faulting on the interface between the Nazca and South America plates in Central Chile. At the latitude of this event, the Nazca plate is moving towards the east-northeast at a velocity of 74 mm/yr with respect to South America, and begins its subduction beneath the continent at the Peru-Chile Trench, 85 km to the west of the September 16 earthquake.
September 15, 2015
In preparation for the 2018 re-competition of the GAGE (Geodesy Advancing Geosciences and EarthScope) facility, the UNAVCO community and governance held several planning sessions to chart the future needs of the geodetic and broader geoscience community. In September 2014, the National Science Foundation (NSF) sponsored a Community Workshop entitled “The future of PBO in the GAGE Facility (2013-2018) and after EarthScope,” covered in a previous highlight.
August 20, 2015
UNAVCO is pleased to announce that Septentrio, Inc. has been selected as the Geodesy Advancing Geosciences and EarthScope (GAGE) Facility Preferred Vendor for next generation GNSS reference station products.
May 6, 2015
Eight years of observations of millimeter-level vertical surface changes from a dense network of Global Positioning System (GPS) receivers in the Pacific Northwest tracks a fluctuating water load due to varying precipitation. The observations track seasonal variations (i.e., more rain or snow in the fall and winter) and the drought of 2008-2010.
September 30, 2015
A plate tectonic model for the Caribbean is derived using from GPS measurements in the region. Analysis shows the subduction edge of the Caribbean plate transitions from fully locked near Hispaniola to partially locked under Puerto Rico and the Lesser Antilles. This behavior implies about one magnitude 8 earthquake every 2000 years.
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.
October 2, 2015
Combining geodetic and seismic measurements for the moderate 2014 Mw 6.1 Napa, California earthquake shows that rapid earthquake assessment is effective, so in a future real-time implementation, early responders will have more information to know where to concentrate their efforts to mitigate losses.
Last modified: Friday, 02-Oct-2015 20:59:41 UTC