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WHAT'S HOT view all DUE TO INCLEMENT WEATHER, UNAVCO\'s BOULDER OFFICE IS CLOSED TODAY -- DUE TO INCLEMENT WEATHER, UNAVCO\'s BOULDER OFFICE IS ON A DELAYED START THIS MORNING. IT WILL OPEN AT ' . date('g:ia', $expires) . ' MT -- UNAVCO and IRIS Joining Forces for Advancing Geophysics Virtual Community Events (Responses) Video: 9 Impacts of Geodesy Check out our news feed. HIGHLIGHTS view all -- UNAVCO Community Election Results December 15, 2020 UNAVCO, as a university-governed consortium, elected new members to the Board of Directors and Nominating Committee. read more Data Event Response to the October 30, 2020 M 7.0 - 15 km NNE of Néon Karlovásion, Greece Earthquake November 17, 2020 A magnitude 7.0 earthquake occurred at 2020-10-30 11:51:27 (UTC) on October 30, 2020, off the coast of Greece and Turkey. For more information, see the USGS Earthquake Hazards Program event page read more UNAVCO & IRIS Collaborate in Alaska November 3, 2020 On 22 October, 2020, team members from UNAVCO and IRIS worked together to upgrade the power system and enclosure at UNAVCO station AC20 near Girdwood, AK. read more Data Event Response to the September 30 to October 3, 2020, Westmorland, California, Earthquake Swarm November 2, 2020 A magnitude 4.9 earthquake occurred at 00:31:27 UTC (16:31:27 local) on October 1, 2020, 4 km North East of Westmorland, California as part of an earthquake swarm from September 30, 2020 to October 3, 2020. For more information, see the USGS Earthquake Hazards Program event page. read more You are not (ever!) alone: science, career, and caregiving in the time of COVID October 26, 2020 This short panel discussion includes caregivers from academic administration, the National Science Foundation (NSF), UNAVCO, and IRIS sharing their personal experiences and practical resources for managing work and caregiving. read more SCIENCE SNAPSHOTS view all Catching a Tall Building’s Response to an Earthquake with GPS February 25, 2020 An 86-floor tall, steel-sculpted concrete building in Kuwait was shaken by a moment magnitude 7.3 earthquake far away at the Iran-Iraq border. The building’s shaking was captured by GPS sites, on the top of the building, and others near ground level. The ground shook with amplitudes of about 40 millimeters while the building shook up to 160 millimeters. Such observations can help to understand a building’s response to an earthquake and to improve building design in response to large stresses. read more Long Distance GNSS Wobbles Preceded Massive Subduction Zone Earthquakes May 19, 2020 GNSS observations show surface horizontal displacements of 4 to 8 millimeters wobbling back and forth for more than five months and over thousands of kilometers before massive subduction zone earthquakes in Japan and Chile. Detailed modeling of the dense geodetic data for the Japan earthquake suggests a fluid-triggered slab pull helping to initiate a massive event. read more Tracking Interactions of the Sun, the Moon and Earth with GNSS for the 2017 Great American Solar Eclipse March 03, 2019 The 21 August 2017 total solar eclipse across the United States blocked solar radiation and influenced the ionosphere and the rest of the atmosphere. The total electron content (TEC) in the ionosphere was measured with UNAVCO’s network of U.S. Global Positioning System (GPS)/ Global Navigation Satellite System (GNSS) ground-based sites and other geodetic sites across the country. read more Measuring Snow Properties with Laser Scanning and Radar March 26, 2020 A novel combination of ground penetrating radar and terrestrial LiDAR scanning provides details about the state of seasonal snowpack in Colorado without destroying the snow layers. Testing shows high variability in volumetric liquid water contents. The rapid changes in the amount of liquid water occurred in small areas over short time periods. Understanding the state of a snowpack is important for managing water resources. read more Using GNSS Reflected Signals to Track Storm Surge June 1, 2020 Geodetic stations at two coastal sites in Hong Kong were able to measure storm surge from Typhoon Hato in 2017 and Typhoon Mangkhut in 2018, using GNSS Interferometric Reflectometry (GNSS-IR). Adding more satellite signals and GNSS ground stations would provide greater coverage in space and time and greater accuracy to geodetic, storm-resistant, ground-based measurements of sea level, storm surge and even tsunami height.. read more Tsunami Hazards in Central America November 8, 2017 Central America faces tsunami threats along the Pacific and Caribbean coasts and at the shores of large lakes. Large earthquakes caused the most damaging tsunamis, however, landslides or volcanic eruptions can cause tsunamis around large lakes. Warning systems rely on seismic and geodetic observations. The Central American Tsunami Advisory Center (CATAC) will use these observations to help reduce losses. read more New Way to Measure Seafloor Motion with GPS in Shallow Seas March 16, 2020 A new way to measure seafloor motions with Global Positioning System (GPS) in shallow seas is tested in Tampa Bay, Florida. Observations over many months indicate seafloor motions in three dimensions can be measured. The method can be applied for offshore oil operations, lakes around volcanic edifices, shallow submarine regions near the coasts that are above active subduction zones and for other applications. read more Last modified: 2020-12-15 15:06:16 America/Denver Sponsored by: Community Meetings & Events UNAVCO Membership UNAVCO Governance Proposals & Reports Data Policy Community Science Science Snapshots Science Seminars Community Publications Networks NOTA NASA GGN POLENET Real-Time GNSS/GPS High-Rate GNSS/GPS Communication UNAVCO Highlights UNAVCO in the News What's Hot Discussion Forums Mail Lists Education Short Courses Education Resources Early Career Resources Student Opportunities Quick Links GNSS/GPS Data Search SAR Data Search Plate Motion Calculator Data Web Services Jules Verne Voyager Collaborations COOPEUS EarthCube LARISSA OpenTopography WInSAR Project Support Geophysical Event Response Polar Services Education & Outreach Data Management & Archiving GPS/GNSS TLS Support Borehole Geophysics Instrumentation Support 2020 Connect with Us Request Support Related Links Careers © 2020 UNAVCO Privacy Policy Terms of Use...