Seismic ground vibrations give advanced early-warning of subglacial floods
Nature Communications, 2020 Subglacial lakes and jökulhlaups (glacier outburst floods) are common in volcanic and glaciated environments, and can pose potential threats to communities living downstream. Here, the authors find that seismic tremor signals during subglacial floods can
Eva P. S. Eibl +4 more
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Electron mirror branch: observational evidence from “historical” AMPTE-IRM and Equator-S measurements [PDF]
Annales Geophysicae, 2018 Based on now “historical” magnetic observations, supported by few available plasma data, and wave spectra from the AMPTE-IRM spacecraft, and also on “historical” Equator-S high-cadence magnetic field observations of mirror modes in the magnetosheath near
R. A. Treumann +2 more
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Effects of upwelling duration and phytoplankton growth regime on dissolved-oxygen levels in an idealized Iberian Peninsula upwelling system [PDF]
Nonlinear Processes in Geophysics, 2020 We apply a coupled modelling system composed of a state-of-the-art hydrodynamical model and a low-complexity biogeochemical model to an idealized Iberian Peninsula upwelling system to identify the main drivers of dissolved-oxygen variability and to study
J. H. Bettencourt +5 more
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Triangulating the height of cosmic noise absorption: A method for estimating the characteristic energy of precipitating electrons [PDF]
, 2010 Energetic electrons (tens to hundreds of keV) deposit significant energy into the D layer of the ionosphere. Riometers provide a means of monitoring this electron precipitation by measuring the associated cosmic noise absorption (CNA), but individually ...
P. Wild +7 more
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Geochemistry, Geophysics, Geosystems, 2014 We undertake a petrologically driven approach to jointly model magnetotelluric (MT) and seismic surface wave dispersion (SW) data from central Tibet, constrained by topographic height. The approach derives realistic temperature and pressure distributions
Jan Vozar +6 more
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Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009) [PDF]
, 2008 During the International Polar Year (IPY), one area of great interest is co-coordinated, multi-instrument probing of the ionosphere at high latitudes. This region is important not only for the applications that rely upon our understanding of it, but also
Freeman, M. +26 more
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Observations of significant flux closure by dual lobe reconnection [PDF]
Annales Geophysicae, 2007 We present an interval of dual lobe reconnection during which interplanetary magnetic field lines are captured by the magnetosphere by reconnecting at high latitudes in both the Northern and the Southern Hemispheres.
S. M. Imber, S. E. Milan, B. Hubert
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IMPACT OF A COSMIC BODY INTO EARTH'S OCEAN AND THE GENERATION OF LARGE TSUNAMI WAVES: INSIGHT FROM NUMERICAL MODELING [PDF]
, 2010 17/06/13 meb. .
Weiss, R +5 more
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Ozone trends at northern mid- and high latitudes – a European perspective [PDF]
Annales Geophysicae, 2008 The EU CANDIDOZ project investigated the chemical and dynamical influences on decadal ozone trends focusing on the Northern Hemisphere. High quality long-term ozone data sets, satellite-based as well as ground-based, and the long-term meteorological ...
N. R. P. Harris +28 more
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The attenuation of atmospheric Cerenkov photons [PDF]
, 2002 Whilst the atmosphere places a limit on the successful applications of many branches of astronomy, it becomes an invaluable tool for the detection of very high energy γ-rays. This thesis is concerned with reducing the systematic uncertainties inherent to
Daniel, Michael Kevin, Daniel, Michael
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