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.
January 5, 2017
Sixteen leaders in STEM and geoscience education gathered in Boulder, Colorado at UNAVCO headquarters to kick off the EarthConnections: Community Pathways to Geoscience Careers project. EarthConnections is a new initiative funded under the NSF INCLUDES (Inclusion across the Nation of Communities of Learners of Underrepresented Discoverers in Engineering and Science) program.
January 4, 2017
In response to the M5.7 earthquake 29km WSW of Hawthorne, Nevada on 2016-12-28 08:18:00 UTC, UNAVCO is downloading high-rate GPS/GNSS and borehole strainmeter data from EarthScope Plate Boundary Observatory stations.
December 19, 2016
In response to the M5.0 earthquake 8km NW of The Geysers, California on 2016-12-14 at 16:41:05 UTC, UNAVCO is downloading high-rate GPS/GNSS data from EarthScope Plate Boundary Observatory stations within 150 km of the epicenter.
December 8, 2016
In response to the M6.5 earthquake 160km west of Ferndale, California on 2016-12-08 at 14:49:46 UTC, UNAVCO is downloading high rate GPS/GNSS data from 214 PBO stations within 500 km of the epicenter.
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.
December 7, 2016
Using GPS and Sentinel 1 radar imagery, the slip along the West Napa fault zone (WNFZ) during and after the 2014 South Napa earthquake was measured. The complexity of the slip and afterslip suggests that hard rock and soft sediment heterogeneity control the style of friction on the fault plane.
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: Monday, 09-Jan-2017 22:09:00 UTC