Results 11 to 20 of about 10,615 (268)

Lava Flow Roughness on the 2014–2015 Lava Flow-Field at Holuhraun, Iceland, Derived from Airborne LiDAR and Photogrammetry

Geosciences, 2020
Roughness can be used to characterize the morphologies of a lava flow. It can be used to identify lava flow features, provide insight into eruption conditions, and link roughness pattern across a lava flow to emplacement conditions. In this study, we use
Muhammad Aufaristama, Ármann Höskuldsson, Magnus Orn Ulfarsson, Ingibjörg Jónsdóttir, Thorvaldur Thordarson   +4 more
doaj   +1 more source

Lava Flow Hazard and Its Implication in Geopark Development for the Active Harrat Khaybar Intracontinental Monogenetic Volcanic Field, Saudi Arabia

Land, 2023
Harrat Khaybar is an active monogenetic volcanic field in western Saudi Arabia that hosts spectacular monogenetic volcanoes and a Holocene volcanic cone with extensive lava fields.
Károly Németh, Mohammed Rashad Moufti
doaj   +1 more source

Thermal impacts of basaltic lava flows to buried infrastructure: workflow to determine the hazard

Journal of Applied Volcanology, 2020
Lava flows can cause substantial physical damage to elements of the built environment. Often, lava flow impacts are assumed to be binary, i.e. cause complete damage if the lava flow and asset are in contact, or no damage if there is no direct contact ...
Sophia W. R. Tsang, Jan M. Lindsay, Ben Kennedy, Natalia I. Deligne   +3 more
doaj   +1 more source

Blood Vessel Occlusion by the Layperson Audiovisual Assist Tourniquet (LAVA TQ) Compared to the Combat Application Tourniquet: Randomized Controlled Trial

Western Journal of Emergency Medicine, 2023
Introduction: While windlass-rod style tourniquets stop bleeding in limbs when used by skilled responders, they are less successful in the hands of the untrained or not recently trained public.
Craig Goolsby, Nicole Dacuyan-Faucher, Keke Schuler, Annie Lee, Amit Shah, Jeremy Cannon, Curt Kothera   +6 more
doaj   +1 more source

Preferred Pore Orientation as a Complement to Anisotropy of Magnetic Susceptibility: A Case Study of Lava Flows From Batur Volcano, Bali, Indonesia

Frontiers in Earth Science, 2020
Anisotropy of magnetic susceptibility (AMS) analyses have been used widely in many applications that include studying lava flows. In this paper, we introduce an auxiliary parameter, i.e., preferred pore orientation, on the use of AMS for lava flow ...
Nuresi Rantri Desi Wulan Ndari, Putu Billy Suryanata, Satria Bijaksana, Darharta Dahrin, Fadhli Ramadhana Atarita, Aditya Pratama, Abd Hafidz, Silvia Jannatul Fajar   +7 more
doaj   +1 more source

Mapping lava flow from the Kilauea eruption of 2018 in the east rift zone using space-based synthetic aperture radar

GIScience & Remote Sensing, 2023
Lava flows from volcanoes can significantly destroy infrastructure, although they rarely threaten human life. Mapping lava flows is essential to managing the volcanic hazard during eruptions and understanding significant changes in geomorphology after ...
Je-Yun Lee, Seong-Woo Jung, Sang-Hoon Hong   +2 more
doaj   +1 more source

On the Thermal Budget of Pahoehoe Lava Flows [PDF]

, 1994
In this thesis I investigate some aspects of the thermal budget of pahoehoe lava flows. This is done with a combination of general field observations, quantitative modeling, and specific field experiments.
Keszthelyi, László P.
core   +1 more source

The influence of surface clinker on the crustal structures and dynamics of 'a'ā lava flows. [PDF]

, 2010
Surface structures on 'a'ā and blocky lavas reflect the internal flow dynamics during emplacement and also influence the dynamics of developing flows.
Pinkerton, H., van Wyk de Vries, Benjamin, L. J. Applegarth, Pinkerton, Harry, Van Wyk de Vries, B., H. Pinkerton, Applegarth, L.J., James, M.R., James, Mike R., M. R. James, Applegarth, Louisa Jane, B. van Wyk de Vries   +11 more
core   +1 more source

Use of a portable topographic mapping millimetre wave radar at an active lava flow. [PDF]

, 2006
A ground-based millimetre wave radar, AVTIS (All-weather Volcano Topography Imaging Sensor), has been developed for topographic monitoring. The instrument is portable and capable of measurements over ranges up to ∼7 km through cloud and at night.
James, M R, Macfarlane, D. G., Pinkerton, H., Robertson, D. A., Macfarlane, D G, Robertson, D A, Wadge, G., Wadge, G, Pinkerton, H, James, M. R.   +9 more
core   +1 more source

DOWNFLOW code and LIDAR technology for lava flow analysis and hazard assessment at Mount Etna

Annals of Geophysics, 2011
The use of a lava-flow simulation (DOWNFLOW) probabilistic code and airborne light detection and ranging (LIDAR) technology are combined to analyze the emplacement of compound lava flow fields at Mount Etna (Sicily, Italy).
Alessandro Fornaciai, Simone Tarquini, Massimiliano Favalli   +2 more
doaj   +1 more source