Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Adam D. Booth"'
Autor:
Emma Pearce, Adam D. Booth, Sebastian Rost, Paul Sava, Tuğrul Konuk, Alex Brisbourne, Bryn Hubbard, Ian Jones
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1419-1433 (2023)
The density structure of firn has implications for hydrological and climate modelling, and ice-shelf stability. The structure of firn can be evaluated from depth models of seismic velocity, widely obtained with Herglotz–Wiechert inversion (HWI), an
Externí odkaz:
https://doaj.org/article/3d33748a7d6d42c7a0a45387f71677bb
Autor:
Adam D. Booth, Poul Christoffersen, Andrew Pretorius, Joseph Chapman, Bryn Hubbard, Emma C. Smith, Sjoerd de Ridder, Andy Nowacki, Bradley Paul Lipovsky, Marine Denolle
Publikováno v:
Annals of Glaciology, Vol 63, Pp 79-82 (2022)
Distributed Acoustic Sensing (DAS) is increasingly recognised as a valuable tool for glaciological seismic applications, although analysing the large data volumes generated in acquisitions poses computational challenges. We show the potential of acti
Externí odkaz:
https://doaj.org/article/dc4bddb3fc474f88b97fa3acace74b40
Autor:
Emma Pearce, Adam D. Booth, Sebastian Rost, Paul Sava, Tuğrul Konuk, Alex Brisbourne, Bryn Hubbard, Ian Jones
Publikováno v:
Annals of Glaciology, Vol 63, Pp 44-48 (2022)
The density structure of firn has implications for hydrological and climate modelling and for ice shelf stability. The firn structure can be evaluated from depth models of seismic velocity, widely obtained with Herglotz-Wiechert inversion (HWI), an a
Externí odkaz:
https://doaj.org/article/564695c1917f4dfb9c48547917a488d8
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Models of the sedimentary architecture of submarine channel-levee systems and their formative flow processes are predominantly based on studies from low latitude settings. Here, we integrate high-resolution seismic reflection, bathymetry and GLORIA s
Externí odkaz:
https://doaj.org/article/f4e1388a3ed44592b26aabae3214c608
Autor:
Hannah Watts, Adam D. Booth, Benedict T. I. Reinardy, Siobhan F. Killingbeck, Peter Jansson, Roger A. Clark, Benjamin M. P. Chandler, Atle Nesje
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Geophysical surveys provide an efficient and non-invasive means of studying subsurface conditions in numerous sedimentary settings. In this study, we explore the application of three geophysical methods to a proglacial environment, namely ground pene
Externí odkaz:
https://doaj.org/article/7ca60ec57f454ca1ba272b9916240254
Autor:
Bernd Kulessa, Adam D. Booth, Martin O’Leary, Daniel McGrath, Edward C. King, Adrian J. Luckman, Paul R. Holland, Daniela Jansen, Suzanne L. Bevan, Sarah S. Thompson, Bryn Hubbard
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-12 (2019)
Suture zones are abundant on Antarctic ice shelves and widely observed to impede fracture propagation. Here we show that fracture detainment is principally controlled by the zones’ enhanced seawater contents, reducing fracture-driving stresses by o
Externí odkaz:
https://doaj.org/article/c11fff1dcaa7489590ba33212e22ec80
Autor:
Siobhan F. Killingbeck, Adam D. Booth, Philip W. Livermore, Landis J. West, Benedict T. I. Reinardy, Atle Nesje
Publikováno v:
Annals of Glaciology, Vol 60, Pp 206-219 (2019)
Fast ice flow is associated with the deformation of subglacial sediment. Seismic shear velocities, Vs, increase with the rigidity of material and hence can be used to distinguish soft sediment from hard bedrock substrates. Depth profiles of Vs can be
Externí odkaz:
https://doaj.org/article/0ce68042c52b4fedb5decabd0c50c5e4
Autor:
JENNA M. ZECHMANN, ADAM D. BOOTH, MARTIN TRUFFER, ALESSIO GUSMEROLI, JASON M. AMUNDSON, CHRISTOPHER F. LARSEN
Publikováno v:
Journal of Glaciology, Vol 64, Pp 796-810 (2018)
Subglacial tills play an important role in glacier dynamics but are difficult to characterize in situ. Amplitude Variation with Angle (AVA) analysis of seismic reflection data can distinguish between stiff tills and deformable tills. However, AVA ana
Externí odkaz:
https://doaj.org/article/5579d31274894f3d82efdfda04cb6b6b
Signal characteristics of surface seismic explosive sources near the West Antarctic Ice Sheet divide
Autor:
Marianne S. Karplus, Nori Nakata, Galen Kaip, Steven H. Harder, Lucia F. Gonzalez, Adam D. Booth, Emma C. Smith, Stephen A. Veitch, Jacob I. Walter, Poul Christoffersen
Publikováno v:
Journal of Glaciology, Pp 1-25
Externí odkaz:
https://doaj.org/article/261d85624631476280ebfb782487d540
Publikováno v:
Journal of Glaciology, Pp 1-12
We present seismic measurements of the firn column at Korff Ice Rise, West Antarctica, including measurements of compressional-wave velocity and attenuation. We describe a modified spectral-ratio method of measuring the seismic quality factor (Q) bas
Externí odkaz:
https://doaj.org/article/efb2fcfefbc94316bcd2e42cfea08e73