Results 111 to 120 of about 2,053 (253)

Alaska‐Yukon Glacier Depths From a Decade of Airborne Radar Sounding

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract NASA's Operation IceBridge employed airborne radar sounders in Alaska and adjacent northwestern Canada between 2012 and 2021 to measure the thickness of the region's glaciers. Here we present the first comprehensive analysis of these data, analyzing ∼31,700 linear‐km of radar profile data to provide over 5,500 linear‐km of ice thickness and ...
B. S. Tober, M. S. Christoffersen, J. W. Holt, M. Truffer, C. F. Larsen   +4 more
wiley   +1 more source

Physical Volcanology and Hydrothermal Alteration of the Footwall Rocks to the Archean Mattabi Massive Sulfide Deposit, Northwestern Ontario

, 1993
A Thesis submitted to the faculty of the Graduate School of the University of Minnesota by Jamieson Scott Walker in partial fulfillment of the requirements for the degree of Master of Science, May 1993.
Walker, Jamieson Scott
core  

The magmatic system of the Klyuchevskaya group of volcanoes inferred from data on its eruptions, earthquakes, deformation, and deep structure

, 2010
-The study of magmatic plumbing systems of volcanoes (roots of volcanoes) is one of the main tasks facing volcanology. One major object of this research is the Klyuchevskaya group of volcanoes (KGV), in Kamchatka, which is the greatest such group that ...
Zharinov N.A., Fedotov S.A., Gontovaya L.I.   +2 more
core   +1 more source

Sensitivity of Soil Chemical Erosion Rate to Climate and Dust Along a 2.8‐km Elevation Transect at San Jacinto Mountain, California

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Chemical weathering is of wide interest because it breaks down minerals, releases nutrients, weakens rock, and draws down atmospheric CO2. To quantify the sensitivity of soil chemical erosion rate to climate and dust, we measured soil chemical erosion rate, dust deposition rate, and soil climate at 18 ridgetop sites along a ∼2.8‐km elevation ...
Kai Hu, Ken L. Ferrier, Sarah M. Aarons, Emmet Norris, Rain Blankenship, Shaun Marcott, Rachel Breunig, Gregory Ruetenik, Ian Peters, Elizabeth Ceperley   +9 more
wiley   +1 more source

Records of and controls on temporal variations in activity at arc volcanoes

, 2016
Many attributes of volcanic activity, whether physical, geochemical/petrological, or geophysical, change over timescales from minutes to millions of years.
Lachowycz, Stefan M.
core   +1 more source

The Decline of a Caldera‐Filling Glacier at Volcán Sollipulli, Chile

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Southern Andean glaciers have undergone fast retreat in recent decades. This results in reduced freshwater storage, contribution to sea‐level rise, and locally to the formation of glacial lakes, that may pose the risk of glacial lake outburst floods (GLOFs).
J. E. Arndt, M. Somos, S. Navas, D. Farías‐Barahona, A. Rivera, H. Xie, A. Fernández   +6 more
wiley   +1 more source

First Direct Observations of Internal Flow Structures in a Powder Snow Avalanche: Turbulence, Instability and Particle Distribution

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Powder snow avalanches are highly dynamic, multiphase gravity‐driven flows typically composed of a dense basal layer overlain by airborne layers in which snow particles are suspended within a turbulent air phase. Despite extensive work on related systems such as pyroclastic density currents and turbidity currents, all gravity current studies ...
I. Calic, F. Coletti, B. Sovilla
wiley   +1 more source

Connecting and dating with tephras: principles, functioning, and application of tephrochronology in Quaternary research

, 2015
Tephrochronology, the characterisation and use of volcanic-ash layers as a unique chronostratigraphic linking, synchronizing, and dating tool, has become a globally-practised discipline of immense practical value in a wide range of subjects including ...
Lowe, David J.
core  

E.A. Parfitt, L. Wilson: Fundamentals of physical volcanology [PDF]

Bulletin of Volcanology, 2010
openaire   +1 more source

Local Characteristics of Sand Wave Patterns Are Governed by Underlying Sand Bank: A Linear Stability Approach

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Tidal sand waves are dynamic bedforms, observed in shelf seas. In some cases they co‐exist with tidal sand banks, larger‐scale bed features. Sand wave characteristics then vary over the sand bank, migrating anti‐cyclonically around the bank. Yet, little is known about the processes behind sand wave formation on a sand bank characterized by a ...
Laura Portos‐Amill, Pieter C. Roos, Henk M. Schuttelaars, Suzanne J. M. H. Hulscher   +3 more
wiley   +1 more source