Results 61 to 70 of about 104,238 (243)

Expendable bubble tiltmeter for geophysical monitoring [PDF]

, 1983
An unusually rugged highly sensitive and inexpensive bubble tiltmeter has been designed, tested, and built in quantity. These tiltmeters are presently used on two volcanoes and an Alaskan glacier, where they continuously monitor surface tilts of ...
Carr, M. A., Dzurisin, Daniel, Miller, W. F., Westphal, J. A.   +3 more
core   +1 more source

Evolution of deformation and stress changes during the caldera collapse and dyking at Bárdarbunga, 2014–2015: Implication for triggering of seismicity at nearby Tungnafellsjökull volcano [PDF]

, 2017
Stress transfer associated with an earthquake, which may result in the seismic triggering of aftershocks (earthquake–earthquake interactions) and/or increased volcanic activity (earthquake–volcano interactions), is a well-documented phenomenon.
Albino, Andrew Hooper, Benedikt Ófeigsson, Biggs, Björnsdóttir, Bégué, Böðvarsson, Böðvarsson, Cocco, Diez, Ebinger, Eichelberger, Einarsson, Einarsson, Elías Rafn Heimisson, Freed, Freysteinn Sigmundsson, Gonnermann, Green, Gudmundsson, Harris, Heimisson, Hildreth, Hill, Hjartardóttir, Icelandic Met Office, Jónsson, Karsten Spaans, King, Kristín Jónsdóttir, Kristín S. Vogfjörd, La Femina, Larsen, Linde, Magnús Tumi Gudmundsson, Manga, Marco Bagnardi, Martin Hensch, Marzocchi, Michelle Maree Parks, Mogi, Mosegaard, Nostro, Okada, Pagli, Palladino, Parsons, Pedersen, Páll Einarsson, Riel, Roman, Rowland, Rósa Ólafsdóttir, Scott, Sigmarsson, Sigmundsson, Sigrún Hreinsdóttir, Slunga, Stefánsson, Stein, Stein, Stéphanie Dumont, Thóra Árnadóttir, Thórdis Högnadóttir, Toda, Vincent Drouin, Walter, Árnadóttir, Ásta Rut Hjartardóttir   +68 more
core   +1 more source

Cold, dry, windy, and UV irradiated -- surveying Mars relevant conditions in Ojos del Salado Volcano (Andes Mountains, Chile) [PDF]

, 2020
The Special Collection of papers in this issue of Astrobiology provide an overview of the characteristics and potential for future exploration of the Ojos del Salado volcano, located in the Andes Mountains in front of the Atacama Desert in northern Chile.
arxiv   +1 more source

Monitoring Active Volcanoes

Eos, Transactions American Geophysical Union, 1996
Monitoring volcanoes is a surprisingly controversial enterprise. Some volcanologists argue that monitoring promises too much and delivers too little for risk mitigation. They trust only strict land‐use measures (and accompanying high insurance premiums in risky zones) and urge that funds be used for public education and awareness rather than for ...
openaire   +2 more sources

Novel laser-based techniques for monitoring of volcanoes [PDF]

Annals of Geophysics, 2009
An overview of novel laser techniques suitable for volcano monitoring, based on different kinds of infrared laser sources is predented. Their advantages and drawbacks are discussed focusing on their achievable sensitivity and precision levels in analysis of gaseous species. Some of the most recent experimental results obtained in laboratory development
De Natale P, De Natale G, Gagliardi G, Gianfrani L, Rocco A   +4 more
openaire   +8 more sources

Advances in Understanding Intrusive, Explosive and Effusive Processes as Revealed by the Borehole Dilatometer Network on Mt. Etna Volcano

Frontiers in Earth Science, 2020
For detecting below surface sources of deformation, strain measurements offer a very large advantage (orders of magnitude) in sensitivity over displacement measurements. On active volcanoes an intriguing open challenge is to measure the strain variations
Alessandro Bonaccorso, Gilda Currenti, Alan Linde, Selwyn Sacks, Antonino Sicali   +4 more
doaj   +1 more source

On the monitoring of surface displacement in connection with volcano reactivation in Tenerife, Canary Islands, using space techniques [PDF]

, 2002
Geodetic volcano monitoring in Tenerife has mainly focused on the Las Cañadas Caldera, where a geodetic micronetwork and a levelling profile are located.
Aparicio, A., Carrasco, D., Dalda, A., Fernández, José, González-Matesanz, FJ., Prieto Morin, Juan Francisco, Quirós Donate, Rafael, Rodríguez-Velasco, G., Romero, R., Yu, T.-T.   +9 more
core   +1 more source

The fast response of volcano-seismic activity to intense precipitation: Triggering of primary volcanic activity by rainfall at Soufrière Hills Volcano, Montserrat [PDF]

, 2009
One-minute resolution time series of rainfall and seismic data from the Soufriere Hills Volcano, Montserrat are analysed to explore the mechanism of external forcing of volcanic eruptions by rainfall over three years of activity.
Adrian J. Matthews, Barclay, Calder, Carn, de Angelis, Druitt, Elsworth, Endo, Green, Hainzl, Hale, Herd, Hicks, Hicks, Hort, Jade E. Johnstone, Jaquet, Jenni Barclay, Livezey, Loughlin, Mason, Mastin, Matthews, Matthews, Miller, Neuberg, Neuberg, Neuberg, Neuberg, Robertson, Roman, Rowe, Simmons, Taron, Violette, Yamasato   +35 more
core   +1 more source

Long-period seismic events with strikingly regular temporal patterns on Katla volcano's south flank (Iceland) [PDF]

, 2015
Katla is a threatening volcano in Iceland, partly covered by the M\'yrdalsj\"okull ice cap. The volcano has a large caldera with several active geothermal areas. A peculiar cluster of long-period seismic events started on Katla's south flank in July 2011, during an unrest episode in the caldera that culminated in a glacier outburst.
arxiv   +1 more source

DIAPHANE: Muon tomography applied to volcanoes, civil engineering, archaelogy [PDF]

, 2016
Muography techniques applied to geological structures greatly improved in the past ten years. Recent applications demonstrate the interest of the method not only to perform structural imaging but also to monitor the dynamics of inner movements like magma ascent inside volcanoes or density variations in hydrothermal systems.
arxiv   +1 more source