Articles with "volcanic ash" as a keyword



Estimation of optimal dispersion model source parameters using satellite detections of volcanic ash

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jd026676

Abstract: In this paper we demonstrate how parameters describing the geometry of the volcanic ash source for a particular volcanic ash dispersion model (HYSPLIT) may be inferred by the use of satellite data and multiple trial… read more here.

Keywords: source; volcanic ash; dispersion model;

Molten‐Volcanic‐Ash‐Phobic Thermal Barrier Coating based on Biomimetic Structure

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202205156

Abstract: Volcanic ash is a major threat to aviation safety. The softening/melting temperatures of volcanic ash lie far below typical aero‐engine operating temperatures. Thus, molten ash can accelerate the failure of thermal barrier coatings (TBCs). Here,… read more here.

Keywords: volcanic ash; molten volcanic; ash; ash phobic ... See more keywords

Tripled plant productivity and soil microbiome restructuring in a greenhouse volcanic ash fertilization experiment

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Published in 2025 at "Ecosphere"

DOI: 10.1002/ecs2.70406

Abstract: Volcanic ash is widely held responsible for fertilizing soils, but the processes and conditions leading to volcanic soil fertility remain poorly understood. We report here the results of a greenhouse volcanic ash fertilization (VAF) experiment… read more here.

Keywords: plant; soil; soil microbiome; volcanic ash ... See more keywords
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Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK

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Published in 2019 at "Journal of Quaternary Science"

DOI: 10.1002/jqs.3141

Abstract: A tephra record is presented for a sediment core from Llyn Llech Owain, south Wales, spanning the early‐ to mid‐Holocene. Seven cryptotephra deposits are discovered with three thought to correlate with known eruptions and the… read more here.

Keywords: traces volcanic; holocene; tephra; record ... See more keywords

Pedogenesis of a coastal climosequence and a volcanic ash‐influenced elevational transect of western Haleakalā, Maui

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Published in 2025 at "Soil Science Society of America Journal"

DOI: 10.1002/saj2.70119

Abstract: The western slope of Haleakalā, Maui, demonstrates a wide range in soil development (eight mapped soil orders), thus providing a unique opportunity to investigate how climate and volcanic ash deposition influence soil development on basalt.… read more here.

Keywords: haleakal; coastal climosequence; elevational transect; soil ... See more keywords

Identifying eruptive sources of drifting volcanic ash clouds using back-trajectory modeling of spaceborne thermal infrared data

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Published in 2019 at "Bulletin of Volcanology"

DOI: 10.1007/s00445-019-1312-y

Abstract: A new approach is presented for determining the source region of disconnected volcanic ash clouds using a combination of orbital thermal infrared (TIR) image data, HYSPLIT-generated backward trajectories, and spatial geostatistics. Interpolated surfaces derived from… read more here.

Keywords: ash clouds; source; volcanic ash; cloud ... See more keywords

HOTVOLC: the official French satellite-based service for operational monitoring and early warning of volcanic ash plumes

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Published in 2024 at "Bulletin of Volcanology"

DOI: 10.1007/s00445-024-01716-w

Abstract: Early detection of volcanic ash clouds is crucial to aviation safety and airspace surveillance. With the increase in air traffic and the frequency of volcanic eruptions, the need for effective warning procedures and improved detection… read more here.

Keywords: operational monitoring; detection; volcanic ash; ash plumes ... See more keywords
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Monitoring of volcanic ash cloud from heterogeneous data using feature fusion and convolutional neural networks–long short-term memory

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Published in 2020 at "Neural Computing and Applications"

DOI: 10.1007/s00521-020-05050-y

Abstract: Heterogeneous data have become a key issue restricting the monitoring accuracy of volcanic ash cloud and rapid application of remote sensing. In view of the characteristics of classification and heterogeneous data in volcanic ash cloud… read more here.

Keywords: ash cloud; heterogeneous data; cnn lstm; volcanic ash ... See more keywords

Improved Reactivity of Volcanic Ash using Municipal Solid Incinerator Fly Ash for Alkali-Activated Cement Synthesis

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Published in 2019 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-019-00604-1

Abstract: In this work, municipal solid waste incinerator fly ash (MSWI-FA) was used as precursor to alter the reactivity of low reactive volcanic ash (VA) for alkali-activated cement synthesised. The effects of various proportions of MSWI-FA… read more here.

Keywords: alkali activated; volcanic ash; municipal solid; reactivity ... See more keywords

Corrosion behavior of volcanic ash on sintered mullite for environmental barrier coatings

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Published in 2017 at "Ceramics International"

DOI: 10.1016/j.ceramint.2016.10.147

Abstract: Abstract The high-temperature corrosion behavior of volcanic ash(VA) in attacking sintered mullite was investigated, and the corrosion resistibility of mullite environmental barrier coatings (EBCs) to VA was predicted. Sintered mullite specimens were prepared by using… read more here.

Keywords: sintered mullite; volcanic ash; corrosion behavior; behavior volcanic ... See more keywords

Controls on iron mobilisation from volcanic ash at low pH: Insights from dissolution experiments and Mössbauer spectroscopy

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Published in 2017 at "Chemical Geology"

DOI: 10.1016/j.chemgeo.2016.11.036

Abstract: The deposition of volcanic ash from explosive eruptions to the surface ocean is a source of iron (Fe) for marine phytoplankton. However, the factors that determine the soluble and thus, potentially bioavailable, fraction of Fe… read more here.

Keywords: mobilisation; volcanic ash; spectroscopy; ash ... See more keywords