Results 21 to 30 of about 1,652 (182)

Changes of Soil Chemistry Characteristics of Tephra Mount Anak Krakatau-Indonesia, Through Leaching Experiment

Journal of Tropical Soils, 2023
Studying the weathering process in pristine volcanic materials is crucial as this process will determine further soil characteristics. Mount Anak Krakatau is reported as one of the fastest-growing volcanoes.
Astriana Rahmi Setiawati, Jamalam Lumbanraja, Ananda Ika Kurnia, Manarul Hidayat, Septi Nurul Aini, Dedy Prasetyo   +5 more
doaj   +1 more source

Tephra transformations: variable preservation of tephra layers from two well-studied eruptions [PDF]

Bulletin of Volcanology, 2018
Volcanologists often use terrestrial tephra layers to reconstruct volcanic eruptions. However, the conversion of fresh tephra deposits into tephra layers is poorly understood. To address this knowledge gap, we surveyed tephra layers emplaced by the 1980 eruption of Mount St Helens, USA (MSH1980) and the 1947 eruption of Hekla, Iceland (H1947).
Cutler NA, Streeter RT, Marple J, Shotter LR, Yeoh JS, Dugmore AJ   +5 more
openaire   +4 more sources

Tephra4D: A Python-Based Model for High-Resolution Tephra Transport and Deposition Simulations—Applications at Sakurajima Volcano, Japan

Atmosphere, 2021
Vulcanian eruptions (short-lived explosions consisting of a rising thermal) occur daily in volcanoes around the world. Such small-scale eruptions represent a challenge in numerical modeling due to local-scale effects, such as the volcano’s topography ...
Kosei Takishita, Alexandros P. Poulidis, Masato Iguchi   +2 more
doaj   +1 more source

Residential building and occupant vulnerability to tephra fall [PDF]

Natural Hazards and Earth System Sciences, 2005
Plinian and subplinian volcanic eruptions can be accompanied by tephra falls which may last hours or days, posing threats to people, buildings and economic activity. Numerous historical examples exist of tephra damage and tephra casualties.
R. J. S. Spence, I. Kelman, P. J. Baxter, G. Zuccaro, S. Petrazzuoli   +4 more
doaj  

A dataset for distribution and characteristics of Holocene pyroclastic fall deposits along the Pacific coasts in western Hokkaido, Japan

Data in Brief, 2020
The tephra layers known with eruption ages play an important role in an investigation of tsunami history and archaeology in addition to volcanic history in Hokkaido, Japan.
Ryo Nakanishi, Juichiro Ashi, Satoshi Okamura   +2 more
doaj   +1 more source

PlumeTraP: A New MATLAB-Based Algorithm to Detect and Parametrize Volcanic Plumes from Visible-Wavelength Images

Remote Sensing, 2022
Tephra plumes from explosive volcanic eruptions can be hazardous for the lives and livelihoods of people living in the proximity of volcanoes. Monitoring and forecasting tephra plumes play essential roles in the detection, characterization and hazard ...
Riccardo Simionato, Paul A. Jarvis, Eduardo Rossi, Costanza Bonadonna   +3 more
doaj   +1 more source

Estimating the mass of tephra accumulated on roads to best manage the impact of volcanic eruptions: the example of Mt Etna, Italy [PDF]

Natural Hazards and Earth System Sciences
Explosive eruptions release significant quantities of tephra, which can spread and settle on the ground, potentially leading to various types of damage and disruption to public infrastructure, including road networks.
L. Mereu, L. Mereu, M. Stocchi, M. Stocchi, A. Garcia, M. Prestifilippo, L. Sandri, C. Bonadonna, S. Scollo   +8 more
doaj   +1 more source

Impact of supraglacial deposits of tephra from Grímsvötn volcano, Iceland, on glacier ablation

Journal of Glaciology, 2016
Supraglacial deposits are known for their influence on glacier ablation. The magnitude of this influence depends on the thickness and the type of the deposited material.
REBECCA MÖLLER, MARCO MÖLLER, PETER A. KUKLA, CHRISTOPH SCHNEIDER   +3 more
doaj   +1 more source

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, EarlyView.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

Thermal Influence of Volcanic Tephra on Maximum Soil Temperatures: Geoecological Implications for Germination and Distribution of Argyroxiphium sandwicense (Haleakalā, Maui, Hawai’i)

Geographies
Mid-day maximum soil temperatures were measured at 10 study plots during different hot summer days in Haleakalā Crater, Maui, with thermocouple thermometers on five adjacent microsite types: bare surface soils, soils under black tephra, soils under ...
Francisco Luis Pérez
doaj   +1 more source