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 25, 2014
A Mw 6.0 earthquake with its epicenter located 6 km (4 miles) northwest of American Canyon, California and 8 km (5 miles) south southwest of Napa, California, occurred at 3:20 a.m. PDT on August 24, 2014 at a depth of 11.3 km. As a response, UNAVCO is currently downloading data recorded at five-samples-per-second (5 sps) for the full 24 hour UTC day of the event, and one-sample-per-second (1 sps) data for 3 days before and 3 days after the earthquake (7 days total). UNAVCO also produced a fully processed 1-sps borehole strainmeter (BSM) dataset spanning the time period of this event.
July 31, 2014
The main goal of this collaborative Dartmouth-University of Maine-University of New Hampshire project is to reconstruct the history of precipitation and atmospheric circulation in Alaska during the last thousand years using ice core records of snow accumulation.
July 2, 2014
During the last part of April, UNAVCO and the Oficina Nacional de Meteorología (ONAMET) upgraded communications on COCONet sites CN06, CN08, and CN27 and Jurisdicción Inmobiliaria (JI) sites BARA, LVEG, and SROD in the Dominican Republic, and brought site CN06 online for the first time since it was installed in August 2012.
February 02, 2014
Even stainless steel in the Caribbean starts to rust anywhere it has been welded or is in contact with another type of alloy such as aluminum. While the hardware used in the Plate Boundary Observatory works well in temporate climates, COCONet requires hardware better suited to hot, humid, and salty environs.
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.
August 22, 2014
A large number of tracks of mostly hadrosaurid dinosaur footprints discovered in Denali National Park shows that hadrosaurid herds lived in multigenerational groups, that juveniles had relatively rapid growth rates, and that a warm polar world could support a significant population of large plant-eating dinosaurs.
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.
May 13, 2014
The ice stream in northeast Greenland shows rapid ice loss because of rising air surface temperatures and the loss of sea ice, which is associated with rising sea surface temperatures. The thinning glaciers are detected by a combination of satellite and aerial imagery plus GPS measurements of ground surface rebound due to rapid ice mass loss. Models do not predict the northeast sector of the continent to show such melting with consequences for under-estimating sea level rise.
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.
September 1, 2012
The forces of the Japanese Tohoku-oki 2011 magnitude 9.0 earthquake, the fifth most powerful in the past century, set off a large tsunami that further devastated the shaken island. The earthquake and tsunami also badly damaged a six-reactor nuclear power plant in Fukushima, located 241 kilometers north of Tokyo.
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: Friday, 19-Sep-2014 01:24:58 UTC