Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Andrew Hooper"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Major strike-slip faults that develop between strong and weaker regions are thought to focus along narrow shear zones at the rheological boundary. Here we present the InSAR-derived velocity field spanning almost the entire length of one such
Externí odkaz:
https://doaj.org/article/12dd501a874a4f92b64e5f61b710c493
Publikováno v:
Geo-spatial Information Science, Vol 27, Iss 3, Pp 728-743 (2024)
Synectic Aperture Radar (SAR) backscatter coefficient is sensitive to glacier surface physical characteristic changes, including the states of melting and refreezing, but it is also sensitive to incidence angle variation. This study explores the capa
Externí odkaz:
https://doaj.org/article/f7218a1e19ea4caf84be046b1a973afe
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 1155-1166 (2024)
While satellite persistent scatterer synthetic aperture radar (SAR) interferometry is an effective technique to monitor the health of structures via selection of long-term coherent pixels, detailed interpretation of displacement measurements requires
Externí odkaz:
https://doaj.org/article/9322281bf0c24c528897b86ac7c102e9
Autor:
Michelle M. Parks, Freysteinn Sigmundsson, Vincent Drouin, Sigrún Hreinsdóttir, Andrew Hooper, Yilin Yang, Benedikt G. Ófeigsson, Erik Sturkell, Ásta R. Hjartardóttir, Ronni Grapenthin, Halldór Geirsson, Elisa Trasatti, Sara Barsotti, Rikke Pedersen, Páll Einarsson, Bergrún A. Óladóttir, Hildur M. Friðriksdóttir
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024)
Abstract Unrest began in July 2021 at Askja volcano in the Northern Volcanic Zone (NVZ) of Iceland. Its most recent eruption, in 1961, was predominantly effusive and produced ∼0.1 km3 lava field. The last plinian eruption at Askja occurred in 1875.
Externí odkaz:
https://doaj.org/article/d85f8ea887504790a66318307fc7de2d
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 7605-7618 (2022)
Monitoring large areas of the Earth's surface is possible thanks to the availability of remote sensing data obtained by a large collection of diverse satellites orbiting the Earth. Specifically, multitemporal interferometric synthetic aperture radar
Externí odkaz:
https://doaj.org/article/34c770344fb84ea0b86211dfb892754c
Autor:
Freysteinn Sigmundsson, Virginie Pinel, Ronni Grapenthin, Andrew Hooper, Sæmundur A. Halldórsson, Páll Einarsson, Benedikt G. Ófeigsson, Elías R. Heimisson, Kristín Jónsdóttir, Magnús T. Gudmundsson, Kristín Vogfjörd, Michelle Parks, Siqi Li, Vincent Drouin, Halldór Geirsson, Stéphanie Dumont, Hildur M. Fridriksdottir, Gunnar B. Gudmundsson, Tim J. Wright, Tadashi Yamasaki
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Large-volume volcanic eruptions can occur despite only limited precursory activity. Here the authors show that modelling the combined effects of buoyant magma, viscoelastic earth behaviour, and sustained magma channels can explain such behaviour of v
Externí odkaz:
https://doaj.org/article/0c024d3baeee4898b806085012a75a92
Autor:
Krisztina Kelevitz, Alessandro Novellino, Arnaud Watlet, James Boyd, James Whiteley, Jonathan Chambers, Colm Jordan, Tim Wright, Andrew Hooper, Juliet Biggs
Publikováno v:
Remote Sensing, Vol 14, Iss 12, p 2836 (2022)
With the advances of ESA’s Sentinel-1 InSAR (Interferometric Synthetic Aperture Radar) mission, there are freely available remote sensing ground deformation observations all over the globe that allow continuous monitoring of natural hazards and str
Externí odkaz:
https://doaj.org/article/03639f1139e54e9682a3a8433180ec49
Autor:
Ekbal Hussain, Tim J. Wright, Richard J. Walters, David P. S. Bekaert, Ryan Lloyd, Andrew Hooper
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Accumulation of interseismic strain may now be constrained by satellite observations. Here, the authors show that strain accumulation rates on the North Anatolian Fault are constant for the interseismic period indicating that lower-crustal viscositie
Externí odkaz:
https://doaj.org/article/1c5ab2a84ce94519b3cbb4d34a1e171b
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract In contrast to the glacier mass losses observed at other locations around the world, some glaciers in the High Mountains of Asia appear to have gained mass in recent decades. However, changes in digital elevation models indicate that glacier
Externí odkaz:
https://doaj.org/article/a25cd9d2d65e4fa3944155d87c15b709
Autor:
Stéphanie Dumont, Freysteinn Sigmundsson, Michelle M. Parks, Vincent J. P. Drouin, Gro B. M. Pedersen, Ingibjörg Jónsdóttir, Ármann Höskuldsson, Andrew Hooper, Karsten Spaans, Marco Bagnardi, Magnús T. Gudmundsson, Sara Barsotti, Kristín Jónsdóttir, Thórdís Högnadóttir, Eyjólfur Magnússon, Ásta R. Hjartardóttir, Tobias Dürig, Cristian Rossi, Björn Oddsson
Publikováno v:
Frontiers in Earth Science, Vol 6 (2018)
We report how data from satellite and aerial synthetic aperture radar (SAR) observations were integrated into monitoring of the 2014–2015 Holuhraun eruption in the Bárðarbunga volcanic system, the largest effusive eruption in Iceland since the 17
Externí odkaz:
https://doaj.org/article/e88c171b840647929982fe24e1a41190