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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.

 
 

HIGHLIGHTS

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Data Event Response to the 16 April 2016 Mw 7.8 Earthquake 27km SSE of Muisne, Ecuador

Data Event Response to the 16 April 2016 Mw 7.8 Earthquake 27km SSE of Muisne, Ecuador

April 17, 2016

In response to the Mw 7.8 earthquake 7.8 Earthquake 27km SSE of Muisne, Ecuador on 2016-04-16 23:58:37 (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 at http://borehole.unavco.org/bsm/earthquakes/ 20160416_MuisneEcuador/.

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Data Event Response to the 1 April 2016 Mw 6.2 Earthquake 100km NNE of Chignik Lake, Alaska

Data Event Response to the 1 April 2016 Mw 6.2 Earthquake 100km NNE of Chignik Lake, Alaska

April 04, 2016

In response to the Mw 6.2 earthquake 100km NNE of Chignik Lake, Alaska on 2016-04-02 05:50:00 (UTC), UNAVCO is downloading high rate one-sample-per-second (1-sps or 1 Hz) GPS data from PBO stations within 250 km of the epicenter for a 7-day period around the event (day of event ± 3 days).

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Installation of CORS cGPS Station in Sitka, Alaska

Installation of CORS cGPS Station in Sitka, Alaska

March 30, 2016

UNAVCO engineers in collaboration with the City of Sitka installed station AKSI in Sitka, Alaska, on the historical Sitka Post Office. The station is part of the National Geodetic Survey (NGS) CORS network that provides GNSS data in support of three-dimensional positioning, meteorology, space weather, and geophysical applications.

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Data Event Response to the 2 March 2016 Mw 7.8 Earthquake Southwest of Sumatra, Indonesia

Data Event Response to the 2 March 2016 Mw 7.8 Earthquake Southwest of Sumatra, Indonesia

March 3, 2016

In response to the 2 March 2016 Mw 7.8 earthquake Southwest of Sumatra, Indonesia, UNAVCO has produced a fully processed 1-sps borehole strainmeter (BSM) dataset spanning the time period of the event...

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SCIENCE SNAPSHOTS

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Tracking Precipitation in Northeast Africa with GPS

Tracking Precipitation in Northeast Africa with GPS

November 13, 2015

Vertical motions measured by GPS ground stations can be used to track water loads related to precipitation in Ethiopia and Eritrea. The network monitors the seasonal East African monsoon and a smaller regional rainy season. The GPS network is an effective water monitor for the region, where most of the population is agriculture-based.

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GPS and Small Earthquakes Track Periodic Slow Slip That Precedes Large Earthquakes

GPS and Small Earthquakes Track Periodic Slow Slip That Precedes Large Earthquakes

April 14, 2016

Using years of data from the dense geodetic and seismic networks in Japan, researchers find that slow slip events that repeat either coincide or precede large magnitude earthquakes along the major subduction zone off the coast of northeastern Japan.

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Detecting Volcanic Plumes with GPS Data

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.

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GPS Sensors Capture Glacial Earthquakes

GPS Sensors Capture Glacial Earthquakes

March 4, 2016

GPS sensors record the motion of the Helheim Glacier in Greenland as ice calving occurs at its terminus. As the iceberg rotates and rolls off sideways, the glacier springs backwards and moves downwards. This action produces an earthquake and the GPS sensors record all the motion and help to explain how glacial earthquakes occur.

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Sea Level Rise on the U.S. Gulf Coast

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.

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Mapping the Seafloor with Gravity Models

Mapping the Seafloor with Gravity Models

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.

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Seismogeodesy for Rapid Earthquake Response

Seismogeodesy for Rapid Earthquake Response

October 2, 2015

Combining geodetic and seismic measurements for the moderate 2014 Mw 6.1 Napa, California earthquake shows that rapid earthquake assessment is effective, so in a future real-time implementation, early responders will have more information to know where to concentrate their efforts to mitigate losses.

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Last modified: Thursday, 28-Apr-2016 22:16:57 UTC

 

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