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2009 UNAVCO Highlights

Title Date
Join UNAVCO at the 2009 AGU Fall Meeting Join UNAVCO at the 2009 AGU Fall Meeting The AGU Fall Meeting is expected to draw a crowd of over 16,000 geophysicists from around the world. The Fall Meeting provides an opportunity for researchers, teachers, students, and consultants to present and review the latest issues affecting Earth, planets, and their environments in space. This meeting will cover topics in all areas of Earth and space sciences.
Read more 		2009-12-07
GPS Data Used to Measure Snow Depth GPS Data Used to Measure Snow Depth GPS data from the Plate Boundary Observatory's station at Marshall Field in Colorado is being used by Kristine Larsen at the University of Colorado at Boulder to measure snow depth around the station monument.
Read more 		2009-11-28
GGN North Liberty Station Upgrade - Phase 2 The North Liberty, Iowa (NLIB), Global GNSS Station is one of the longest running GPS stations (March, 1993) in the GGN network, as well as being a reference frame site. The antenna mount is a JPL ring mount, in which the choke ring sits (see Figure 2). One main issue in upgrading the station is that this mount prevents the use of a calibrated antenna/dome combination, which is now a requirement of the IGS. In order to replace the failing AOA choke ring, a new mount was designed, fabricated, tested, and installed.
Read more 		2009-11
Year 3: Afar, Ethiopia GPS campaign 2009 was the third year of UNAVCO support for the Afar Rift project, located in eastern Ethiopia. A 60 km long dyke opened up in the Dabbahu segment in 2005 that marked the beginning of a continuing rifting episode. New intrusions, with associated seismic activity, have occurred regularly every year thereafter, making the rift one of the most active in the world.
Read more 		2009-11
PBO Data: Strain Offsets Following Passage of Seismic Waves PBO Data: Strain Offsets Following Passage of Seismic Waves The EarthScope Plate Boundary Observatory strainmeters in Southern California recorded significant strain offsets following the passage of seismic waves from the M6.9 Gulf of California earthquake on August 3.
Read more 		2009-09-11
Long-Range Geodesy Community Planning In response to new and emerging research opportunities in geodesy and its interdisciplinary applications, the geodesy community is preparing a written plan in a Grand Challenges format, identifying emerging science questions, required workforce development and diversity, and needed instrumentation and facilities. The intention is to have a draft by AGU and final plan by January 2010. This plan will inform a number of other national science planning initiatives anticipated in 2010.
Read more 		2009-09
Niwot Ridge GPS installation One continuously operating GPS station was installed up on Niwot ridge in early September. PI Kristine Larson will be using the data from the site to determine if GPS antennas (set in standard geodetic orientations) will be suitable for measuring changes in snow depth. These changes can be tracked in the corresponding multipath modulation of the GPS signal.
Read more 		2009-09
Goddard Geophysical Astronomical Observatory (GGAO) - Demonstration and Reconnaisance UNAVCO Facility and PBO personnel traveled to Goddard's Geophysical and Astronomical Observatory (GGAO) in September to do reconnaissance in preparation for the installation of two deep drill braced monuments. The current GNSS monument, GODE, will have to be abandoned once the new VLBI antenna is installed in 2010 as part of the first prototype 'NASA Supersite.'
Read more 		2009-09
ICESat Calibration UNAVCO personnel took part in a high-resolution GPS survey of the eastern lobe of the Salar de Uyuni in Bolivia, to provide ground truth for NASA's Ice, Cloud, and land Elevation Satellite (ICESat) laser altimeter. A prime objective of the ICESat mission is to acquire multi-year elevation data for Antarctica and Greenland in order to quantify changes in the ice sheets associated with climate change.
Read more 		2009-09
GGN North Liberty Station Upgrade - Phase 1 The North Liberty Global GNSS Station (NLIB) has been operating with the same AOA choke ring antenna since March 5, 1993. This is one of the longest running core reference frame stations. The antenna has begun to show signs of degradation and the JPLA dome was shattered sometime last year, both must be replaced.
Read more 		2009-09
RESESS Celebrates 5 Years of Research, Mentoring, and Community Research Experiences in Solid Earth Science (RESESS) celebrated five years of research, mentoring, and community on August 6, 2009. We acknowledged the 2009 RESESS participants' achievements during a morning colloquium and afternoon poster session together with students participating in Significant Opportunities in Atmospheric Research and Science (SOARS).
Read more 		2009-08
InSAR Data Shows Evidence of Coseismic Deformation - Gulf of CA Earthquake, August 3, 2009 Across the central Gulf of California the Pacific-North America plate boundary is localized in the Ballenas channel, which separates Isla Angel de la Guarda from the Baja California Peninsula (BAJA). At about 45 mm/yr, the Ballenas Transform represents a fast moving strike-slip fault.
Read more 		2009-08
Red Lakes Peatland Network Expansion Three new continuously operating GPS stations were added to an existing network of 11 GPS stations in the Red Lake Peatlands of northern Minnesota. The three new sites are installed in a triangular formation, each approximately 20 meters apart. Nested within the GPS triangle are 31 radially arranged instrumented piezometers.
Read more 		2009-08
GeoEarthScope LiDAR Release - Yellowstone GeoEarthScope LiDAR Release - Yellowstone GeoEarthScope recently announced the availability of new airborne Light Detection and Ranging (LiDAR) data products from the Intermountain Seismic Belt project. This release includes high resolution LiDAR topography data collected in tectonically active regions of Utah and Wyoming, including Yellowstone and Grand Teton National Parks and the Nephi segment (southern strand) of the Wastach fault.
Read more 		2009-07-21
Toolik Thermokarst Alaska's North Slope area is a wide expanse of land that is located north of the Brooks Range and extends to the Arctic Ocean. The land is characterized by the surface “active layer” of tundra that thaws during the summer season, while the underlying permafrost remains frozen year-round.
Read more 		2009-07
GNET 2009 Nine continuous GPS stations were installed in Greenland during the August 2009 field campaign. Communications for two stations installed last year (2008) were repaired and brought back online. Data from these sites are transmitted via an Iridium modem to the Boulder Facility network, where it is archived automatically. Currently there are 43 stations in the GNET network.
Read more 		2009-07
New Permanent Station Installation on Mount Evans, Colorado Working with PIs from the National Oceanographic and Atmospheric Administration (NOAA) UNAVCO engineers installed a continuously operating GPS station at the Mt. Evans Observatory. The Observatory is operated by researchers from the University of Denver who are currently conducting weather experiments.
Read more 		2009-07
Barrow DGPS Training and Inventory, Alaska UNAVCO paid a visit to the Barrow Arctic Science Consortium (BASC) facility in June of 2009 to perform maintenance and review a detailed inventory of the GPS equipment on loan to BASC. This annual visit also provided an opportunity to train researchers from UTEP and San Diego State University in the use UNAVCO gear at the facility.
Read more 		2009-06
PBO Brochure Release PBO Brochure Release The Plate Boundary Observatory (PBO) is part of the larger National Science Foundation (NSF)-funded EarthScope project. This geodetic observatory is designed to study the four-dimensional strain field resulting from deformation across the active boundary zone between the Pacific and North American plates in the western United States and Alaska. The network will provide an unprecedented spatial and temporal view of western North America enabling Earth scientists and the natural hazards community to better understand earthquake and volcano behavior.
Read more 		2009-05-04
Laser Strainmeter at Durmid Hill Records Bombay Beach Earthquake Swarm Laser Strainmeter at Durmid Hill Records Bombay Beach Earthquake Swarm The M4.8, March 24, 2009, Bombay Beach Earthquake and the earthquake swarm that followed it were recorded by the PBO Long Baseline Laser Strainmeter at Durmid Hill (DHL).
Read more 		2009-04-14
LARISSA 2009, Antarctica LARISSA: Larsen Ice Shelf System, Antarctica is a National Science Foundation funded initiative that brings an international, interdisciplinary team together to address a significant regional problem with global change implications, the abrupt environmental change in Antarctica's Larsen Ice Shelf System.
Read more 		2009-04
UNAVCO Polar Support Offers Scientists a New Look at Glaciology New advances in understanding the dynamics of ice sheets in the most remote polar regions of the world have been made possible by technological advances in GPS systems. Eight new GPS stations, designed and built by UNAVCO as a result of the 3 year NSF funded Major Research Instrumentation (MRI) Project Collaborative Research.
Read more 		2009-03
Munson Farms Surface Soil Moisture Study Two continuously operating GPS stations were recently installed at Munson Farms outside of Boulder, Colorado. The stations will operate for three years and are part of a larger, continental-scale study that aims to convert GPS signal-to-noise (SNR) data into estimates of surface soil moisture content.
Read more 		2009-03
EarthScope PBO Instruments Aid in Monitoring Recent Yellowstone Earthquake Swarm EarthScope PBO Instruments Aid in Monitoring Recent Yellowstone Earthquake Swarm EarthScope seismic, strain and GPS data are currently aiding scientists in interpreting the ongoing earthquake swarm under Yellowstone National Park that began on December 27, 2008 and ended in early January, 2009. Scientists are carefully studying the seismic and GPS data to evaluate the cause of this swarm that appears to have been related to hydrothermal and tectonic processes.
Read more 		2009-02-17
GNSS Reference Station Communications Upgrade The GNSS reference frame station, CHPI, in Cachoeira Paulista, Brazil, is operated by the Instituto Nacional de Pesquisas Espaciais (INPE) in conjunction with the Jet Propulsion Laboratory (JPL) and UNAVCO.
Read more 		2009-02
Polar Permanent Stations MRI Project: Year 3 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.
Read more 		2009-02
Antarctic Program Support 2008-2009 During the 2008-09 Antarctic field season, the UNAVCO polar group supported 24 individual PI-based science campaign projects. Sixty two receivers were sent to the continent for campaign support, including fifteen NetRS receivers. An additional ten GPS receivers remain on the ice to support long term data collection at WAIS divide under Slawek Tulaczyc.
Read more 		2009-02
UNAVCO Strategic Plan 2009-2013 UNAVCO has just unveiled its new Strategic Plan, a document that will guide the organization's activities over the next five years. After a one year planning and revision process led by UNAVCO President M. Meghan Miller, a full color version of the plan that includes many new community graphics was distributed at the American Geophysical Union's Fall Meeting in San Francisco December, 2008.
Read more 		2009-01
POLENET 2008-2009 During 2008-09 field season one CGPS site was installed by plane from McMurdo and two sites were installed at or near the WAIS divide camp. Five sites installed last season were visited by plane and helicopter to perform O&M. Data from the 14 operational CGPS sites are transmitted via the Iridium satellite system to the UNAVCO Archive.
Read more 		2009-01
New Permanent Station Installations on Sierra Negra Volcano, Galapagos In January of 2009 UNAVCO Engineer Abe Morrison along with Principal Investigator (PI) Bill Chadwick from the National Oceanic and Atmospheric Administration, installed 2 additional Permanent GPS stations in an existing network inside of Volcano Sierra Negra. One of the new stations went inside the caldera and one on the rim.
Read more 		2009-01
Paleoseismology, the Echo Cliffs Precariously Balanced Rock Hudnut et al. (2009) used TLS to investigate a previously undocumented Precariously Balanced Rock (PBR) located above Echo Cliffs in the western Santa Monica Mountains. The rock lies above the ramp in the fault propagation fold structure that has been interpreted by Davis and Namson as an active structure that may pose a major seismic hazard to the Los Angeles area.
Read more 		2009-12
Monitoring gully-head propagation with TLS Arid and semi-arid landscapes are often laced with rapidly evolving networks of ephemeral gullies. These gully networks can act as significant sources of fine sediment, and their growth can undermine road systems, agricultural works, and other forms of infrastructure.
Read more 		2009-12
 
 

Last modified: 2020-02-03  19:21:32  America/Denver