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.
April 25, 2015
A magnitude 7.9 earthquake occurred in Nepal at 06:11:26 UTC on April 25, 2015. The earthquake occured as the result of thrust faulting on or near the main frontal thrust between the subducting India plate and the overriding Eurasia plate.
March 30, 2015
On February 20, 2015 NSF Director Dr. Frances Córdova and other NSF leadership met with UNAVCO President Dr. M. Meghan Miller at the NCAR Research Aviation Facility at Rocky Mountain Metropolitan Airport in Broomfield, Colorado. The senior management team, select UNAVCO staff, and several early career scientists joined them.
April 10, 2015
The National Science Foundation (NSF) sponsored a Community Workshop entitled “The future of PBO in the GAGE Facility (2013-2018) and after EarthScope,” which was held at the DoubleTree Hotel in Breckenridge, Colorado from September 22nd through 24th, 2014.
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.
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.
April 30, 2015
The North Anatolian Fault (NAF) is major fault system with a history of large earthquakes that extends across Turkey into the Aegean Sea. Twenty years of GPS observations indicate that the Princes’ Islands fault segment under the Sea of Marmara is the most likely segment to generate a magnitude ~7 earthquake in the future with consequences for Istanbul.
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, 19-May-2015 17:11:48 UTC