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2007 UNAVCO Highlights
Title Date
GeoEarthScope LiDAR Data Release in Northern California GeoEarthScope LiDAR Data Release in Northern California The first processed products from the GeoEarthScope Northern California Airborne LiDAR project were released to the community in December, 2007. Additional products from this vast dataset will be released in the coming months, along with more advanced access and analysis tools, as processing efforts continue. The data are currently available as 1 km^2 tiles of 0.5 m digital elevation models - both unfiltered (all data) and filtered (bare earth) - in ESRI (ArcGIS) binary grid format.
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2007-12-12
Sunrise Tree Farm Presentation in Philomath, Oregon a Success Sunrise Tree Farm Presentation in Philomath, Oregon a Success Educational and Outreach (E&O) activities began at PBO sites that have requested E&O involvement. At Sunrise Tree Farm in Philomath, Oregon, several school programs and community presentations were shared. This is a busy time of year for a site with a deep brace GPS monument (P375) that is eager for new educational materials and programs. Two different school groups with about 60 students ranging in age from seven years old to seventeen learned about the theory of plate tectonics, Oregon’s regional landforms and tectonic activity, and then the use of GPS. About 35 teachers, parents, staff members, and the general public also listened to the presentations covering the PBO mission, components of the GPS monument, and more. From their questions and enthusiasm, this site visit proved to be a success.
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2007-12-12
Two Borehole Strainmeter/Sesimometer Stations Installed in Yellowstone Two Borehole Strainmeter/Sesimometer Stations Installed in Yellowstone Plate Boundary Observatory crews installed borehole strainmeters and seismometers at B207 (Madison Junction) and B028 (Lake Junction) in Yellowstone National Park. The installations were a joint effort between EarthScope the National Park Service, USGS, and the University of Utah. We were greatly assisted in the field by National Park Service Employees Hank Heasler (borehole geophysics and geology) and Cheryl Jaworowski (cuttings geology and installation zone selection). Four additional boreholes are planned for installation in the Spring and Summer of 2008.
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2007-11-14
PBO Northern California Reaches 200-Station Milestone PBO Northern California Reaches 200-Station Milestone The PBO installation crews constructed GPS station number 200 in Northern California in October. On October 24, GPS station P660 was completed near Mt Shasta, CA. A deep-drilled monument was constructed at this site, utilizing radio data communications, a three-panel solar system, and an upgraded security system. PBO Northern California finished the month with 201 GPS installations, well ahead of the scheduled mark of 192 installations. This will put the region in good shape to finish the project next year on-schedule.
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2007-11-13
Installation Crews Reach Key Milestones Installation Crews Reach Key Milestones As of the end of September 2007, the Plate Boundary Observatory installed 708 GPS stations, 44 borehole strainmeters, and three long-baseline laser strainmeters. PBO has now produced 470.5 GB of raw data (single copy, not counting seismic data) in 877,231 data files. PBO has now produced 218.3 GB of seismic data (single copy, miniSEED format). PBO has also now produced a total of 688.8 GB of raw data. All PBO data are publicly available at EarthScope funded data centers. PBO has collected approximately 95.8% of the data that could possibly have been collected over the PBO lifespan. Data not recorded were due to the NetRS failures in 2005 and power failures at the Anza borehole strainmeters in the summer of 2006. No data have been lost to date once they have entered the PBO Data Management System.
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2007-10-11
Airborne LiDAR Imagery of Active Faults for GeoEarthScope Airborne LiDAR Imagery of Active Faults for GeoEarthScope GeoEarthScope is a component of EarthScope that includes the acquisition of aerial and satellite imagery and geochronology. As part of GeoEarthScope, we are working on collecting LiDAR (Light Detection And Ranging) data along major fault zones in the western U.S. and Alaska over the next year. This effort will provide extensive and detailed images of active faults throughout the tectonic plate boundary region on the west coast of North America. Airborne LiDAR is an unparalleled remote sensing technique for generating extremely detailed maps of ground elevation. Because of LiDAR's advantages over previous remote sensing techniques, it is rapidly becoming a key tool in studies of active faulting, landscape processes, and ground deformation.
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2007-10-10
Borehole Strainmeter and GPS Permitting Borehole Strainmeter and GPS Permitting During the month of August, PBO Permitting made excellent progress on Borehole Strainmeter and GPS permitting. We received 14 new BSM permits including permits for five sites in Yellowstone National Park. In addition, we are making excellent progress on the Mendocino, Mojave, LA Basin, and East Bay Parks (San Francisco) strainmeter permits. These remaining clusters will include several alternate sites for each primary site so that there will be no interruption in drilling if a bad hole is encountered.
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2007-09-11
GeoEarthScope Northern California LiDAR Project: Preliminary Images Emerge GeoEarthScope Northern California LiDAR Project: Preliminary Images Emerge Data collection for the GeoEarthScope Northern California LiDAR project concluded in April 2007. Over the course of several weeks, approximately 1400 square kilometers of EarthScope targets were imaged as well as supplementary targets for the USGS and the California PUC. Between this project and the previously conducted B4 project, also funded by NSF, the entire San Andreas fault system, along with many other important adjacent faults and structures, have now been imaged with high resolution airborne LiDAR.
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2007-09-11
Akutan Tilt Installation Akutan Tilt Installation During August of 2007, the Plate Boundary Observatory (PBO) successfully installed four Lily Self Leveling Borehole Tiltmeters on Akutan Volcano, in the central Aleutian Islands of Alaska. All four instruments were collocated with existing PBO Global Positioning Systems (GPS) stations installed on the volcano in 2005. The tiltmeters will aid researchers in detecting and measuring flank deformation associated with future magmatic intrusions of the volcano. All four of the tiltmeters were installed by PBO field crews with helicopter support provided by JL Aviation and logistical support from the Trident Seafood Corporation, the City of Akutan, and the Akutan Corporation. Lack of roads and drivable trails on the remote volcanic island required that all drilling equipment be transported to each site from the village of Akutan by slinging gear beneath the helicopter and with internal loads. Despite poor weather conditions during the installation, all four tiltmeters were installed in 9 days on the volcano in addition to completing maintenance on the existing GPS stations elsewhere on the volcano.
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2007-09-11
Construction of the Final Pair of PBO Longbase (Laser) Strainmeters Construction of the Final Pair of PBO Longbase (Laser) Strainmeters Construction of the final pair of PBO long baseline (laser) strainmeters, near Cholame, California, is making impressive progress. These 400-meter long instruments are being sited over a region of recently discovered seismic tremor activity. The instruments will also detect strain changes in the Parkfield area to the north, and on the locked section of the San Andreas Fault nearby, which last ruptured 150 years ago.
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2007-08-16
Installation of Mt. St Helens Borehole Strainmeters and Seismometers Nearly Complete Installation of Mt. St Helens Borehole Strainmeters and Seismometers Nearly Complete In July and early August EarthScope Plate Boundary Observatory field crews installed 3 borehole strainmeter stations surrounding Mt. St Helens. Crews installed stations at station B202 (Windy Ridge), B203 (Quarry), and B204 (Marble Mountain). Each installation consists of a borehole strainmeter installed at ~800 ft deep, a 3 component seismometer located just above the strainmeter, and a tiltmeter will be installed ~ 100 ft below the surface. The final station in the cluster, B201, is nearing completion and will be installed in the early fall.
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2007-08-16
PBO Begins 2007 Summer Student Program PBO Begins 2007 Summer Student Program As of May 31, nine students were hired for the 2007 PBO Summer Student Program. From June to September, these students will be working with PBO installation crews in all of the PBO regions. The program is intended to get young people interested in the geosciences by developing technical and professional skills while learning about the science and construction of EarthScope. Many of the students are on their second season in the program, which significantly adds to the productivity and efficiency of the installation crews.
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2007-07-13
Eastern US PBO Site Reconnaissance Eastern US PBO Site Reconnaissance PBO will install 5 additional stations in the Eastern United States, to complement the eleven existing GPS stations collocated at USArray sites.
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2007-06-28
San Juan Grade Install Update San Juan Grade Install Update On 12pm, May 17, 2007 PST the San Juan Grade borehole strainmeter, part of the San Juan Batista array, was installed. This installation, the 33rd of the project, was a milestone for the project. This installation included all new drilling methods and a critical replacement grout, both elements critical to the success of the project.
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2007-06-26
UNAVCO Convenes Special Session on Borehole Networks UNAVCO Convenes Special Session on Borehole Networks Greg Anderson (PBO Data Products Manager) and David Mencin (PBO Strainmeter Operations Manager) convened a special session on Integrated Borehole Geodetic and Seismic Networks: A Developing Tool for Earth Science during the 2007 Annual Meeting of the Seismological Society of America.
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2007-05-21
GeoEarthScope Northern California LiDAR GeoEarthScope Northern California LiDAR Data acquisition for the GeoEarthScope Northern California LiDAR project was completed successfully in April 2007. Over the course of several weeks approximately 1400 square kilometers of EarthScope targets were imaged, as well as supplementary targets for the USGS and the California PUC. Between this project and the previously conducted B4 project, also funded by NSF, the entire San Andreas fault system has now been imaged with high resolution airborne LiDAR, along with many other important faults and structures. This represents a major milestone for GeoEarthScope and a significant achievement for the entire EarthScope project and community.
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2007-05-07
2007 EarthScope National Meeting 2007 EarthScope National Meeting Teachers from around the country participated in a four-hour workshop given at the EarthScope National Meeting. Teachers learned about EarthScope, explored the Earth Structure through a hands on activity (shown: Ricardo Flores from Antelope Valley High School), discussed fault creep by using the earthquake machine, and investigated episodic tremor and slip in the Pacific Northwest. There was also a hands-on activity using GPS data from the Plate Boundary Observatory.
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2007-04-11
PBO Installs First of Four Permafrost GPS Stations in Alaska PBO Installs First of Four Permafrost GPS Stations in Alaska The PBO Alaska Regional Office installed the first of four Permafrost GPS monuments planned for Alaska in the city Kotzebue on March 7th 2007. Kotzebue is located on the northwest portion of the Baldwin Peninsula on Kotzebue Sound in Northwest Alaska. The permafrost monument is a new one of a kind monument that was designed by Duane Miller and Associates LLC for UNAVCO using a thermopile manufactured by Arctic Foundation, Inc. to build and maintain a stable GPS monument in Arctic areas with permafrost subject to seasonal freeze thaw cycles.
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2007-03-30
New deep braced GPS monument installed in Pacific Northwest New deep braced GPS monument installed in Pacific Northwest A new deep braced GPS monument was completed on February 14th at the Newport Municipal Airport in western Oregon to replace the existing GPS monument (NEWP) that had been installed in June of 1996, by hand digging down to a meter, and then pounding rebar to approximately 1/2 meter. During a visit in May of 2006, it was found that the monument was deeply rusted. This location is an important site for monitoring activity related to the Cascadia Subduction zone. Both the old station (NEWP) and P367 have been running simultaneously since February 15th of this month.
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2007-03-15
National Geographic Films Strainmeter Installation National Geographic Films Strainmeter Installation The installation of strainmeter B026 was filmed for a National Geographic special "Earth Shocks" during the week of March 26th. Wade Johnson, Tim Dittmann, Alan Stroeve, James Stair, Michael Gottlieb, Sarah Venator and Andy Tiedmann of PBO were present and Herb Dragert of the Pacific Geosciences Center and a member of the PBOSC was present as well. The special will be one hour long and aired on the National Geographic television channel. PBO instrumentation, especially strainmeters, will be displayed along with their role in identifying and understanding the episodic tremors in the PNW.
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2007-03-14
2007 Cascadia Episodic Tremor and Slip 2007 Cascadia Episodic Tremor and Slip The Pacific Northwest Seismic Network reports that strong tremor began in the central-south Puget Sound Jan 13, 2007 and that it is migrating in a north-northwest direction. PBO has installed 13 borehole strainmeters and seismometers in the region.
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2007-01-23
PBO/Earthscope Campaign Support PBO/Earthscope Campaign Support The Rio Grande Rift project continues to be the main focus of the PBO Campaign support group, with four more monuments having been installed in early December. The network will consist of 25 semi-permanent GPS stations in Colorado and New Mexico, of which 21 have now been completed. Project PI's Anne Sheehan and Steve Nerem of the University of Colorado, Tony Lowry of Utah State, and Mousumi Roy of the University of New Mexico will analyze data acquired by these stations over the next five years to determine velocity and tectonic style associated with the Rift.
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2007-01-18
PBO at 2006 Fall AGU PBO at 2006 Fall AGU Numerous science, facility construction, and education and outreach papers were presented at the Fall AGU meeting. As we move into year four of the construction phase of the MREFC, it is highly encouraging to see the science community using and interpreting PBO data and data products to resolve key EarthScope science goals. PBO staff participated in numerous talks and posters outlining the state of the construction and data management activities, and more importantly to garner feedback from the science community on how to improve data and information access, education and outreach, and construction processes and procedure. The following are a summary of science, education and outreach, and facility construction abstracts.
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2007-01-18
Improving Hurricane Intensity Forecasts Using Caribbean GPS Stations The COSMIC program has recently been funded by the National Science Foundation to expand Suominet into the Caribbean. The objective of this expansion is to improve the forecasts of hurricane track and intensity using continuous observations of integrated water vapor.
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2007-12
GNET 2007 Twenty-three continuous GPS stations were installed in Greenland during August 2007. The GNET project is part of the International Polar Year (IPY) POLENET consortium and includes active participation of collaborators from Denmark, Luxemburg, and the USA for Greenland activities.
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2007-07
Green Valley Biocomplexity Study Area UNAVCO provided field engineering support for a third consecutive year to gather GPS data at the Biocomplexity study sites maintained near Thule, Greenland by Ron Sletten (University of Washington) and Jeffrey Welker (University of Alaska, Anchorage).
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2007-07
Improving Hurricane Intensity Forecasts Using Caribbean GPS Stations The COSMIC program has recently been funded by the National Science Foundation to expand Suominet into the Caribbean. The objective of this expansion is to improve the forecasts of hurricane track and intensity using continuous observations of integrated water vapor.
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2007-05
Polar Permanent Stations MRI Project: Year 1 Field Season The National Science Foundation recently 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.
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2007-02
Pietown Maintenance The Pie Town, New Mexico, (PIE1) GNSS station had been exhibiting tracking problems for the past year or so, with periods of acceptable performance interrupted by poor tracking. Several issues made the performance problems difficult to diagnose.
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2007-01
Niwot Ridge LTER The Niwot Ridge Long Term Ecological Research (LTER) area, located approximately 35km west of Boulder, is one of 26 field sites devoted to ecosystem studies in the larger LTER Network. Numerous studies in the area are currently underway, and in September UNAVCO provided researchers at the University of Colorado-Boulder one GPS unit with which to conduct hydrological surveys of the area's wells.
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2007-09
McCall Glacier RTK Survey 2007 Mass balance measurements, surface velocities, cross-section profiles and continuous topography of McCall Glacier were made using real-time kinematic (RTK) surveys. The mass balance profiles were first measured in the 1990s with an airborne laser survey.
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2007-06
Peatlands Minnesota Ten years ago, University of Minnesota's Paul Glaser headed up a pilot study of peatland methane release using three CGPS stations. The study showed that methane was released in events occurring over several hours which deformed the bog surface by tens of centimeters.
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2007-08
Barrow Arctic Science Consortium DGPS System Upgrade and Training The Barrow Arctic Science Consortium (BASC) is dedicated to supporting research and educational activities pertaining to Alaska's North Slope, and adjacent portions arctic environments. In April, UNAVCO paid its yearly visit to the station in order to address equipment issues and train members of the BASC support staff, who will in turn instruct visiting scientists on how to use the GPS equipment.
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2007-04
Bangladesh GPS Network Installation Participants from Lamont-Doherty Earth Observatory, Dhaka University, and the UNAVCO Facility installed 12 continuous GPS stations across eastern Bangladesh in February, 2007. The project, aimed at understanding the deformation associated with the Burma Arc subduction system, includes deployment of the GPS systems for 4 years and a rotating network of seismometers.
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2007-02
MWD CGPS Installation 2007 The Metropolitan Water District (MWD) of Southern California is a consortium of 26 cities and water districts that provide drinking water to nearly 18 million people in parts of Los Angeles, Orange, San Diego, Riverside, San Bernardino and Ventura counties.
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2007-09
Juneau Icefield Research Program Since its inception in 1946, the Juneau Icefield Research Program (JIRP) has offered undergraduate and graduate students a unique research opportunity on the large system of temperate glaciers located north of Juneau, Alaska.
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2007-08
Sierra Field Course For the second year in a row, UNAVCO provided Indiana University's “Volcanoes of the Eastern Sierra Nevada: Geology and Natural Heritage of the Long Valley Caldera” field course with a Trimble RTK system to introduce the students to scientific field measurements.
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2007-05
Geodetic Monitoring of the 2005 Da'Ure rifting event, Afar A major seismo-magmatic event in the Afar region of Ethiopia in October of 2005 prompted installation of 10 continuous GPS stations around the rift in January of 2006 by scientists from Purdue University, Lamont-Doherty Observatory, and University of Rochester in the U.S., in collaboration with the Geophysical Observatory of the Addis Ababa University in Ethiopia and the University of Leeds in the U.K.
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2007-03
Antarctic Program Support 2006-2007 During the 2006-07 Antarctica season, the UNAVCO polar group supported 27 individual PI-based science project campaigns. Sixty one receivers were sent to the continent for campaign support. Five receivers remain on the ice to support long term data collection.
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2007-02
 

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