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.
WHAT'S HOT
view all- Join us for the 2014 UNAVCO Science Workshop March 4-6, 2014.
- January 10 geodesy education webinar for GETSI project.
- Caribbean GPS Network, COCONet, Announces Data Center Awardees.
- New animation: GPS and Earthquake Early Warning.
- New Video: UNAVCO (Explained in 3 Minutes).
- A new version of our Data Archive Interface (DAI v2) was released July 10, 2013. See the changelog for a list of the updates.
- Notice to UNAVCO GPS Data Product Users: File Format Update on March 25th 2013.
HIGHLIGHTS
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UNAVCO installs COCONet cGPS site in Aruba
October 16, 2013
By collaborating with the Meteorological Department of Aruba, UNAVCO engineers were able to install another cGPS site in the Caribbean.
UNAVCO reestablishes a continuous GPS/MET site on the island of Roatan
October 16, 2013
With assistance from students Jose Eveline, Guillermo Antonio Lopez, Antonia Sarahi Martinez, and Estefania Kury (all of the Universidad Politécnica de Ingeniería (UPI) Tegucigalpa), Honduras, UNAVCO reestablished a continuous GPS/MET site on the island of Roatan.
UNAVCO installs COCONet cGPS site in Trinidad
October 16, 2013
UNAVCO worked in collaboration with personnel at UWI, both in the seismic and surveys and lands departments, to complete the new GPS site in Toco, a small town situated along the remote north east coast of Trinidad.
Arctic Observing Networks: Collaborative Research: Sustaining and amplifying the ITEX AON through automation and increased interdisciplinary observations
October 16, 2013
UNAVCO is supporting the ITEX project with terrestrial LiDAR Scanning (TLS) and GPS survey equipment. The goal of this project is to maintain the existing ITEX AON in Barrow, AK and increase the applicability of the data collected for the greater scientific community.
SCIENCE SNAPSHOTS
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Seismic Hazards in Azerbaijan Informed by Geodesy
November 12, 2013
Azerbaijan encompasses the eastern Kura basin and the Caucasus Mountains rise on its northern border. Recent geodetic observations suggest a significant strain rate across the Kura basin that may signify a greater seismic risk for Azerbaijan's largest city, Baku.
Big Chilean Earthquake Causes Andean Volcanoes to Subside
August 16, 2013
The magnitude 8.8 Maule Chile earthquake that occurred in 2010 caused subsidence of five volcanic regions in the Andes within weeks of the event. The subsidence was observed via satellite imagery and is attributed to the migration of hydrothermal fluids.
Detecting Volcanic Plumes with GPS Data
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.
Antarctic Ice Cliff Eroding Fast Due to Climate Change
October 4, 2013
Imaging and other measurements over two years shows that an ice cliff in coastal Antarctica is eroding much faster than in the past 10,000 years due to recent climate changes. The Antarctic landscape is being transformed much faster than natural processes, even though the continent has a relatively small human footprint.
Sea Level Rise on the U.S. Gulf Coast
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.
UNAVCO's Strainmeters Record the Arrival of Tsunamis on the west coast of North America
August 15, 2012
UNAVCO’s Plate Boundary Observatory includes 75 borehole strainmeters installed predominantly throughout the west coast of North America. Strainmeters work by detecting changes in the size of the borehole, and are sensitive enough to detect a 4 picometer change (smaller than the width of a hydrogen atom). Because they are so sensitive, they pick up every thump and shake in their vicinity, including the arrival of a tsunami wave from across the ocean.
Quality Assessment: A new technique to assess and monitor long-term quality of GPS data
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.
2013