Results 31 to 40 of about 37,854 (165)

High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano

Geophysical Research Letters, 2016
Resolving changes in topography through time using accurate high‐resolution digital elevation models (DEMs) is key to understanding active volcanic processes.
Marco Bagnardi, Pablo J. González, Andrew Hooper   +2 more
doaj   +1 more source

Combinatorial screening of halide perovskite thin films and solar cells by mask-defined IR laser molecular beam epitaxy

Science and Technology of Advanced Materials, 2017
As an extension of combinatorial molecular layer epitaxy via ablation of perovskite oxides by a pulsed excimer laser, we have developed a laser molecular beam epitaxy (MBE) system for parallel integration of nano-scaled thin films of organic–inorganic ...
Kazuhiro Kawashima, Yuji Okamoto, Orazmuhammet Annayev, Nobuo Toyokura, Ryota Takahashi, Mikk Lippmaa, Kenji Itaka, Yoshikazu Suzuki, Nobuyuki Matsuki, Hideomi Koinuma   +9 more
doaj   +1 more source

Baseline monitoring of volcanic regions with little recent activity: application of Sentinel-1 InSAR to Turkish volcanoes

Journal of Applied Volcanology, 2021
Volcanoes have dormancy periods that may last decades to centuries meaning that eruptions at volcanoes with no historical records of eruptions are common.
Juliet Biggs, Fikret Dogru, Ayse Dagliyar, Fabien Albino, Stanley Yip, Sarah Brown, Nantheera Anantrasirichai, Gökhan Atıcı   +7 more
doaj   +1 more source

Thermalisme et villégiature autour d’Auch

Les Cahiers de Framespa, 2021
Around Auch, in the mid-19th century, several hot springs were exploited. Small thermal establishments were set up there, but not all of them gave rise to real spas as in Castéra-Verduzan.
Anaïs Comet
doaj   +1 more source

ON THE ORIGIN OF COMETS

Chinese Journal of Space Science, 1982
Abstract The fact that comets are rich in volatile material shows that they were formed and kept for a long time in the outer, low-temperature regions of the solar system. In this paper we analyse the structure in the outer edge of the solar nebula and show that no formation zone of comets can exist there. Our view is that the comets evolved from the
null Hu Zhong-wei, null Yang Ke-zhong
openaire   +1 more source

Strain Partitioning in the Southeastern Tibetan Plateau From Kinematic Modeling of High‐Resolution Sentinel‐1 InSAR and GNSS

Geophysical Research Letters
Fault slip rates estimated from geodetic data are being integrated into seismic hazard models. The standard approach requires modeling velocities and relative (micro‐)plate motions, which is challenging for fault‐based models.
Jin Fang, Tim J. Wright, Kaj M. Johnson, Qi Ou, Richard Styron, Tim J. Craig, John R. Elliott, Andy Hooper, Gang Zheng   +8 more
doaj   +1 more source

Fabry's Comet and Barnard's Comet [PDF]

Nature, 1886
NOT having seen any mention of the rapid apparent growth of the tail of Fabry's comet, probably some of your readers are not aware to how great a length it extended. On April 26 occurred the first fine night after a very unusual series of overcast ones, and about 14h. G.M.T. I was surprised to see the tail reaching up to, or at least to within 1° of δ,
openaire   +2 more sources

An investigation of changes to commercial aircraft flight paths during volcanic eruptions

Journal of Applied Volcanology
Volcanic eruptions can inject ash into the atmosphere, which is then advected by meteorological winds, potentially affecting large volumes of airspace. Volcanic Ash Advisory Centres (VAACs) issue volcanic ash advisories (VAAs) when airspace is likely to ...
Juliette Delbrel, Mike Burton, Samantha Engwell, Benjamin Esse, Catherine Hayer   +4 more
doaj   +1 more source

Calibration of SAR Polarimetric Images by Covariance Matching Estimation Technique with Initial Search

Remote Sensing
To date, various methods have been proposed for calibrating polarimetric synthetic aperture radar (SAR) using distributed targets. Some studies have utilized the covariance matching estimation technique (Comet) for SAR data calibration.
Jingke Liu, Lin Liu, Xiaojie Zhou
doaj   +1 more source

Simultaneous Observation of Negatively and Positively Charged Nanograins at Comet 67P/Churyumov‐Gerasimenko

Geophysical Research Letters, 2020
Observations near comet 67P by Rosetta show evidence of charged nanograins. Specifically, the ion and electron sensor (IES) observed negative particles with energy/charge (E/q) consistent with charged nanograins.
K. LLera, J. L. Burch, R. Goldstein, Charlotte Goetz   +3 more
doaj   +1 more source