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.
Transforming understanding of Earth systems and hazards using geodesy.
November 29, 2016
Come find us at Booth #523! Our booth is staffed by UNAVCO employees from all groups within the organization, as well as by 2016 UNAVCO interns.
November 22, 2016
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 crust (postseismic deformation) after the September earthquake.
November 14, 2016
In response to the M7.8 earthquake 7.8 earthquake 53km NNE of Amberley, New Zealand on 2016-11-13 11:02:56 (UTC), UNAVCO has processed high rate one-sample-per-second (1-sps or 1 Hz) borehole strainmeter data from all borehole strainmeters in the Plate Boundary Observatory (PBO). The fully processed 1-sps borehole strainmeter (BSM) dataset spanning the time period of this event is now available.
September 8, 2016
The GeoGirls program, now in its second year, is a five-day science and technology field camp for middle school girls on Mount St. Helens. UNAVCO again supported the program with staff time, introducing the girls to geophysics via the Plate Boundary Observatory.
August 11, 2016
Estimates of the probabilities of a magnitude greater than 9.0 earthquake for the Aleutian Islands are about 6.5 to 12 percent over the next 50 years. Such an event poses obvious earthquake and tsunami risks for Alaska and tsunami risks for western North America and Hawaii.
November 10, 2016
The Mw 6.0 South Napa earthquake created measurable surface rupture over about 12 kilometers on several active strands of the West Napa fault zone (WNFZ). Field observations and airborne and satellite-based imagery show earthquake deformation and post-earthquake deformation. The complex fault rupture and post-earthquake fault slip has implications for estimating earthquake hazards.
November 21, 2016
A network of GPS stations measures atmospheric water vapor over the continental United States with effective spatial and temporal resolution. The data tracks annual and seasonal moisture transport from the Gulf of Mexico into the Great Plains and the moisture variability related to the North American monsoon. These measurements are valuable for severe weather forecasts.
October 28, 2016
Global Positioning System (GPS) measurements of the uplift of the ground surface beneath the Greenland ice sheet is critical to determining the amount of ice mass that has been lost since the Last Glacial Maximum (LGM). The GPS data show larger uplift rates than previously recognized and suggest that satellite studies have underestimated the ice mass loss by about 20 gigatons per year or about 1.5 meters of sea level rise since the LGM.
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.
November 28, 2016
Long-term records from GPS stations along the Atlantic Coast of North America show long term subsidence due to geologic adjustments and short term subsidence due to human-related groundwater extraction. These measurements are critical for understanding water use, sediment structure and sea level rise. In particular, knowing the rate of subsidence or uplift along this populated coastal plain could help mitigate flooding and inform land use.
November 29, 2016
Combining geodetic and seismic observations can reduce the amount of time needed to assess the tsunami intensity generated by a large magnitude thrust fault earthquake along a subduction zone. Through retrospective analysis of four tsunamigenic large earthquakes in Japan and Chile, the tsunami potential at the local coast was estimated within less than 2 minutes.
Last modified: Wednesday, 30-Nov-2016 17:09:01 UTC