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2008 UNAVCO Highlights
Title Date
PBO Transitions to Operations and Maintenance Phase PBO Transitions to Operations and Maintenance Phase The Plate Boundary Observatory (PBO) has transitioned from facility construction to operations and maintenance as of October 1, 2008.
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2008-10-14
Modeling Creep in Parkfield Modeling Creep in Parkfield On August 17, 2008, a creep event was recorded along the Parkfield segment of the San Andreas Fault. PBO strainmeter B073 recorded a 50 nanostrain shear strain transient over 30 minutes while a USGS creepmeter in the area, xva1, recorded 1.5 mm of right lateral slip.
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2008-10-07
PBO Nucleus Project Nears Completion PBO Nucleus Project Nears Completion The PBO Nucleus Project, which will update and incorporate 209 existing GPS stations into the PBO network, is within a month of completion.
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2008-09-12
Unimak Island Installations Completed Unimak Island Installations Completed On August 24, 2008 PBO construction crews completed the installation of 14 GPS, 8 tiltmeters, and one webcam on Unimak Island, the remote easternmost island of the Aleutian chain in Alaska.
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2008-09-12
Parkfield Creep Event Recorded by PBO Strainmeter Parkfield Creep Event Recorded by PBO Strainmeter On August 17, 2008, the strainmeter at Varian, B073, recorded such a creep event. It lasted an 1 hour and generated about 20 nanostrain of shear strain.
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2008-09-08
Southern Californian Earthquake Well-Recorded by PBO GPS and Strainmeters Southern Californian Earthquake Well-Recorded by PBO GPS and Strainmeters A Mw 5.4 earthquake shook southern California on July 29, 2008, just before noon. It was located 4 km southwest of Chino Hills, CA, 46 km ESE from Los Angeles, and occurred at a depth of 14.7 km. This location puts it within 50 km of over 40 PBO GPS monuments, as well as a cluster of seven borehole strainmeters about 90 km to the southeast. High rate data (sampled every second) is available from both the GPS monuments and borehole strainmeters on the PBO web page.
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2008-08-12
Unimak Island Installations Unimak Island Installations The second phase of a three-phased project for installing thirteen PBO GPS sites on Unimak Island, the largest and easternmost island in the Aleutian Island chain of Alaska, is underway. The first phase (July 12-31) involved preparation work for installing the sites, based out of Cold Bay. During the second phase (July 25-August 15), the crews will be installing seven of the western sites based off of a boat, the Kittiwake. The final phase of the project (August 12-31) will be based out of False Pass, when the crews will install the remaining stations.
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2008-08-12
Short Course Series Highlighted PBO Data: LiDAR, Strainmeter, and InSAR Short Course Series Highlighted PBO Data: LiDAR, Strainmeter, and InSAR UNAVCO recently offered a series of well-attended short courses on processing and using various PBO data, including LiDAR, strainmeter and tiltmeter, and InSAR.
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2008-07-12
PBO Successfully Installs Strainmeters in Yellowstone National Park PBO Successfully Installs Strainmeters in Yellowstone National Park PBO is installing six borehole strainmeters in Yellowstone National Park to aid in understanding ongoing volcanic processes. Two strainmeters were installed in the fall of 2007, another instrument was installed in early July, and three more are being installed in July and August of 2008.
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2008-07-11
EarthScope Airborne LiDAR Imagery Acquisitions and Short Course EarthScope Airborne LiDAR Imagery Acquisitions and Short Course Two GeoEarthScope airborne LiDAR imagery acquisition campaigns were successfully completed in April 2008
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2008-05-21
EarthScope Airborne LiDAR Imagery Acquisitions and Short Course EarthScope Airborne LiDAR Imagery Acquisitions and Short Course Two GeoEarthScope airborne LiDAR imagery acquisition campaigns were successfully completed in April 2008
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2008-05-21
GPS Installation in the Eastern United States GPS Installation in the Eastern United States In late April 2008, a crew of three field engineers from the Basin and Range and Rocky Mountain regions of PBO conducted a 6000 mile road trip from Salt lake City, UT through the southeastern US and back, and completed the installation of three permanent GPS stations in Arkansas, Tennessee, and North Carolina. P777 in Arkansas and P778 in Tennessee were installed on privately held land with abundant rock of good quality but heavy tree cover, which made finding suitable locations challenging. In North Carolina, P779 was installed at the Pisgah Astronomical Research Institute (PARI), a non-profit research organization that houses both optical and radio telescopes, in addition to other earth science instrumentation. The internet connection for data communications at P779 was accomplished via a pair of optical fibers, making it the only station in PBO serviced by fiber optics directly to the equipment enclosure.
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2008-05-21
2008 Cascadia Episodic Tremor and Slip Event 2008 Cascadia Episodic Tremor and Slip Event Fifteen hours of tremor per day for three days plus significant GPS displacements in north-west Washington suggests that the 2008 Cascadia Episodic Tremor and Slip (ETS) event is underway.
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2008-05-14
2005-2006 Mt. Augustine Eruption Studied with High-Rate GPS Data 2005-2006 Mt. Augustine Eruption Studied with High-Rate GPS Data High-rate GPS data from the UNAVCO Plate Boundary Observatory (PBO) network, installed in collaboration with the Alaska Volcano Observatory, were analyzed by a group of geophysicists and volcanologists under the lead of Mario Mattia (Istituto Nazionale di Geofisica e Vulcanologia, Catania, Italy) in order to study in detail the deformation and unrest preceding a major eruption of Mt. Augustine volcano (Mattia et al., 2008).
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2008-04-18
PBO Talk at San Diego State University PBO Talk at San Diego State University On February 21, 2008 PBOs Siting Outreach Specialist Jayme Margolin gave a talk at the SDSU Brawley Campus entiled EarthScope: Revealing the Earths Secrets.
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2008-03-11
PBO Instruments Record Wells NV, Event PBO Instruments Record Wells NV, Event On Thursday, February 21, 2008, an earthquake occurred in north-central Nevada 10 km ENE of Wells, Nevada, near interstate 80.
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2008-03-10
EarthScope Strainmeter Deployments in Canada Complete EarthScope Strainmeter Deployments in Canada Complete December marked the completion of seven borehole strainmeter installations in Canada. The installations were part of the overall PBO EarthScope effort, but focus on regularly occurring Episodic Tremor and Slip (ETS) events best observed in a region from southern Puget Sound to central Vancouver Island.
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2008-01-15
UNAVCO Events at the AGU Fall Meeting 2008 Join the UNAVCO Community in San Francisco, CA at the American Geophysical Union (AGU) Fall Meeting in December, 2008. New this year, UNAVCO will offer presentations at the UNAVCO Booth in the Exhibition Hall at the Moscone Center. A list of presentations and times can be found below. The booth presentations are informal and will allow time for Q&A.
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2008-12
New Game Incorporates EarthScope Science: Volcano Island The Harvard-Smithsonian Center for Astrophysics (HSCA) has developed an interactive game, Volcano Island, aimed at middle school students to teach about EarthScope-related science. In the game, the user is the mayor of a town on the fictional Volcano Island, home to the rumbling Mt. Leakytop Volcano.
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2008-12
UNAVCO Holds Bilingual Educator Workshop in Puerto Rico: Many UNAVCO Educational Materials now Available in Spanish UNAVCO, in collaboration with the Puerto Rico NASA Space Grant Program and the University of Puerto Rico in Mayagüez, held an educator's workshop entitled “Introducing GPS and its Applications in Earth Science to Educators of Puerto Rico” on September 27, 2008 in Mayagüez, Puerto Rico.
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2008-09
RESESS Intern Publishes in Nature Geoscience Stephen Hernández, a UNAVCO RESESS (Research Experience in Solid Earth Science for Students) intern since 2005, is second author on a widely noted paper published in Nature Geoscience's May 2008 issue. The paper, Global ubiquity of dynamic earthquake triggering (Velasco et al.), explores the theory of earthquake triggering, but as a global phenomenon.
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2008-08
Boy Scouts of America use UNAVCO GPS Technology for Sustainability at the Philmont Scout Ranch, New Mexico The Philmont Scout Ranch, a place Boy Scouts go to embark on backpacking expeditions into the high country of the New Mexican Rockies, employs a conservation staff to ensure the integrity of the pristine wilderness.
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2008-07
UNAVCO's Short Course Series Covered LiDAR, Strainmeter, InSAR, and GPS Data UNAVCO offered a series of well-attended short courses on how to work with our various datasets over the summer, including LiDAR, strainmeter and tiltmeter, and InSAR. These courses were aimed at current researchers who want to update their skills or branch into new areas of research, and younger scientists such as postdoctoral fellows, graduate students, and upper level undergraduates interested in an introduction to a new research tool.
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2008-06
UNAVCO Education and Outreach Supports the TXESS Revolution UNAVCO gave a teacher workshop on using Global Positioning System (GPS) data in the classroom in April 2008 as part of the TeXas Earth and Space Science Revolution (TXESS Revolution) teacher professional development program, which is being led by PI Kathy Ellins of the University of Texas, Austin.
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2008-04
Gap Year in Alaska Leads Fort Lewis College Student to Geology Major [External article] Ally spent her gap year interning as a field assistant with a scientific organization and working in her father's stone masonry business. She graduated from Nederland High School in Colorado in 2006, a year early. She is a freshman at Fort Lewis College in Durango, CO, majoring in Geology.
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2008-01
The Great Southern California ShakeOut UNAVCO participated in the Great Southern California ShakeOut on November 13, 2008. We responded to the simulated magnitude 7.8 ShakeOut event as if it were a real earthquake, providing us with an opportunity to test our response procedures for a similar event in the western United States.
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2008-11
Terrestrial Laser Scanning Study of Gully Erosion at West Bijou Creek Escarpment, Arapahoe County, Colorado: An Investigation on Field Acquisition and Data Processing Terrestrial laser scanning (TLS) or ground based LiDAR (light detection and ranging) is a relatively new technology that digitally maps geological outcrops at mm to cm resolution. We report here the results of a trial TLS project that had two main aims: collecting scans for monitoring gully erosion and conducting a survey to connect field methods of TLS with geomorphology.
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2008-08
GPS and InSAR Study of the 2005 Eruption of Sierra Negra Volcano, Galápagos, Ecuador A team of scientists investigated the 2005 eruption of Sierra Negra volcano in the Galápagos Archipelago using GPS and InSAR data as well as petrologic and geochemical analyses.
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2008-04
Plate Tectonics in the East African Rift D. Sarah Stamps, a first-year graduate student at Purdue University, is the lead-author on a paper presenting "A kinematic model for the East African Rift" published recently in 'Geophysical Research Letters' (Stamps et al., 2008) and highlighted by the American Geophysical Union.
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2008-04
2008 UNAVCO Science Workshop a Success! The 2008 UNAVCO Science Workshop, held in Boulder, CO at the Millennium Harvest Hotel from March 11-13, was well attended, drawing 190 attendees from as far away as New Zealand and Italy, including 20 UNAVCO-supported students, three of which are RESESS interns, and 50 UNAVCO employees. The workshop was a mix of Science Session talks related to UNAVCO-supported science, breakout Special Interest Groups (SIGs), poster sessions, and field trips.
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2008-03
UNAVCO Community Scientist Andria Bilich Receives 2007 Bradford Parkinson Award [PDF] The Institute of Navigation (http://www.ion.org/) presented its Bradford Parkinson Award for the year 2007 to Dr Andria Bilich of the National Geodetic Survey. This award is given annually to honor an outstanding graduate student in the field of Global Navigation Satellite Systems.
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2008-02
Data Archive Interface Version 2 (DAIv2) - Public Alpha Release The Data Archive Interface Version 2 (DAIv2) is the UNAVCO Facility's next generation interface for search and access of UNAVCO's GPS data holdings. The DAIv2 includes a powerful and flexible Web application (see figure 1) for discovery and visualization of UNAVCO's GPS data and metadata holdings. The DAIv2 also includes a suite of Java-based command-line clients for advanced users needing automated discovery and download.
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2008-11
East Greenland Glacier Dynamics Outlet glaciers on the perimeter of the Greenland Ice Sheet continuously feed fresh water into the Atlantic Ocean at the zone where the cryosphere, hydrosphere, and atmosphere meet, a highly complex and insufficiently understood area.
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2008-08
GGN-FALK Station Install NASA-JPL provides support for the GPS infrastructure through a network of permanent GPS stations called the Global GPS Network (GGN). The UNAVCO Facility supports the operation and maintenance of the permenent stations that make up the NASA-GGN.
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2008-06-29
Puerto Rico Seismic Network Installations In May of 2008 UNAVCO Engineers Abe Morrison and Sarah Doelger installed three of the six new CGPS stations to be placed around Puerto Rico and the US Virgin Islands. These installations included a site at the Arecibo Observatory, the Bayamon Science Park, and one on Caja De Muertos Island.
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2008-05
Antarctic Program Support 2007-2008 During the 2007-08 Antarctic field season, the UNAVCO polar group supported 19 individual PI-based science campaign projects. Seventy receivers were sent to the continent for campaign support, including twenty NetRS receivers.
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2008-02
Magnitude 6.0 Earthquake hits Nevada On Thursday, February 21, 2008, at 06:16:02 AM local time, an earthquake occurred in north-central Nevada. The epicenter was 10 km ENE of Wells, Nevada, near interstate 80. The depth of the rupture was determined at 6.7 km. Numerous buildings in Wells suffered considerable damage.
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2008-02
Lasers in the Cold Desert UNAVCO's recently purchased Terrestrial Laser Scanner (TLS), will be used for a number of investigations in Antarctica. Currently, scientist Bruce Marsh, the Principal Investigator of Johns Hopkins University, and Bjorn Johns, a UNAVCO Project Manager, are scanning a beautifully exposed magmatic mush column (MMC) in the Dry Valleys of Southern Victoria Land.
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2008-01
Puerto Rico Seismic Network Installations (Part 2) UNAVCO Engineers Sarah Doelger and Ellie Boyce recently completed the last three of six new CGPS stations located on several islands in the Caribbean. All six stations will be incorporated into the Puerto Rico Seismic Network (PRSN) which is a division of the University of Puerto Rico, Mayaguez.
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2008-10
GNET 2008 Nine continuous GPS stations were installed in Greenland as part of POLENET Greenland (GNET) during the May and July 2008 field campaigns. Communications for two stations installed last year (2007) were repaired and brought back online.
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2008-07
CALIPSO Facility Support 2007-2010 The UNAVCO facility provided support for the CALIPSO Borehole Facility (Caribbean Andesitic Lava Island Precision Seismo-geodetic Observatory) located on Montserrat, WI. The CALIPSO project investigates the dynamics of the entire magmatic system of Soufriere Hills Volcano (SHV) to enhance our understanding of andesitic magma dynamics in general.
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2008-06
Summit Camp Site Visit and Training With funding obtained from the NSF Office of Polar Progams, a permanent GPS base station was installed at Summit Camp in 2006 and is equipped with real-time kinematic (RTK) surveying capability. Summit Camp is a research station located at the highest point of the Greenland ice sheet, and supports a variety of multinational research, including atmospheric and snow chemistry studies, and deep ice core drilling operations.
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2008-05
Barrow DGPS Training and Inventory In early April of this year, UNAVCO visited the Barrow Arctic Science Consortium (BASC) in order to conduct the annual inventory of the GPS equipment on loan to BASC, and to train both BASC science support staff members and University of Alaska Fairbanks researchers.
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2008-04
POLENET Support 2007-2008 Twelve continuous GPS and eight seismic stations were installed in Antarctica during 2007-08 field season. The POLENET Support project is part of the International Polar Year (IPY) POLENET consortium and includes active participation of collaborators from 28 nations including the US. The project's GPS goals are to measure the vertical and horizontal solid Earth deformation to improve and test the models of glacial isostatic adjustment/sea-level change and to improve the global geodetic reference frame.
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2008-02
Magnitude 6.9 Vanuatu Earthquake: Near one of UNAVCO's First Permanent Station Installations The USGS reported a magnitude 6.9 thrust fault earthquake occurring on Tuesday, September 9, 2008 at 5:52 am local time at a depth of 121.8 km. Moderate to strong shaking was reported from the Banks and Torres islands near the epicenter, and from Luganville on Espiritu Santo 225 km to the south, which is Vanuatu's largest island.
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2007-09
Benin's Millennium Challenge Account The small West African nation of Benin is a poor country currently confronted with a struggling economy and widespread poverty. Economic development is hindered by land insecurity, lack of access to capital, an inefficient judicial system, and an uncompetitive sea port.
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2008-07
Terrestrial Laser Scanning in Iceland: CAUSE The Center for Advanced Undergraduate Studies and Experience (CAUSE) at Pennsylvania State University is offering a 2-semester course examining the geology, geophysics, and geography of Iceland. UNAVCO's newly acquired Terrestrial Laser Scanner (TLS) was loaned to Professors Sridhar Anandakrishnan and Pete La Femina, and their 14 undergraduate students, for the field portion of the course, which took place over a 2-week interval in May.
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2008-05
Polar Permanent Stations MRI Project: Year 2 Field Season In 2006 the National Science Foundation awarded Major Research Infrastructure (MRI) funding to UNAVCO and the IRIS/PASSCAL seismic consortium for a unique proposal to design and build a reliable power and communication system for autonomous polar station operation. This three-year development effort involves close collaboration with Antarctic seismologists and GPS scientists.
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2008-02
Marshall Testing Facility Operational - Marshall, Colorado The UNAVCO Facility has completed construction of a testing facility located at Marshall, just outside Boulder, Colorado. The testing facility is funded by NASA-GGN through the UNAVCO cooperative agreement. NASA's Global GPS Network (GGN) faces many challenges in the near future primarily due to maintenance of aging equipment.
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2008-01
 

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