for the time period 2001–2009, obtained from the permanent SIL network, were analysed to
study stress changes associated with the main shocks. Results reveal a coseismic counter-clockwise
rotation of the maximum horizontal stress of 11 ± 10° (95 per cent confidence level) in the main rupture
region. From previous fault models obtained by inversion of geodetic data, we estimate a stress drop/media/norsem/norsem_martin.pdf
than can be expected to originate from the cauldrons, three to four times the wa-
ter equivalent of the accumulation of snow over the watershed of the cauldrons. It has
been estimated that flow from the cauldrons, in addition to the jökulhlaups, could be
2–5 m3 s 1 at maximum (Vatnaskil, 2005). It is possible that part of the sulfate-rich
groundwater from the glacier comes from the cauldrons
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
flood will commence in the coming weeks-months, the water levels under the ice will drop yet there will not be an eruption (as in 2010).A glacial flood will commence in the coming weeks-months, the water levels under the ice will drop and Grímsvötn will erupt. It is most likely that the eruption will be small to medium-sized with significant volcanic tephra fall on Vatnajökull glacier and little
/about-imo/news/the-civil-protection-scientific-advisory-board-meets-to-discuss-the-status-of-grimsvotn
pulses, which are the most characteristic feature of near-fault strong-
motion, scale with key parameters of the specific barrier model and may effectively be simulated using
a phenomenological model. The key model parameter, the local stress drop, has been inferred from
Icelandic strong-motion data. The variations in site conditions of the recording sites have been
approximated
/media/norsem/norsem_benni.pdf
the moment release dropped by a factor of 100 - 200 in the first weeks after the onset of the eruption. This drop is expected, as the eruption released pressure from the dyke. In the following weeks, activity drops further by a factor of 50 - 100, but remains rather stable at around 5E12 Nm during the last three months. The total decay of moment release in the dyke has dropped by a factor of about
/earthquakes-and-volcanism/articles/nr/3083
Atmosphere
Gas emission monitoring and modelling
New C-band radar i NA- Iceland to cover volcanoes
in N- and A-Iceland
Drop-sondes for inside plume conditions or 50-100
km downwind
Network of visible and/or IR cameras
Thank you
Photo: Þ.M. Pétursson
/media/vedurstofan/myndasafn/Eyjafjallajokull_SK_20101214_1.pdf
6University of Washington,
Seattle, WA 98195, USA. 7NOAA Geophysical Fluid
Dynamics Laboratory, Princeton, NJ 08540, USA.
*Author for correspondence. E-mail: cmilly@usgs.gov.
An uncertain future challenges water planners.
Published by AAAS
on July 12, 201
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/media/loftslag/Milly_etal-2008-Stationarity-dead-Science.pdf
wanted to drop you guys a line and
say thank you. I was in Iceland for 16 days in September surfing, and
your web site was so crucial to the trip on knowing when to move and
where to go. Keep up the great work. Thanks again.Preparing a visit to Iceland
Elizabeth wrote in August 2015: "I just wanted to thank you so much for your wonderful website, which is truly one of the most comprehensive
/about-imo/the-web/awards_and_press/
then warmed more than at any earlier time of instrumental observations. If the mean temperature in Iceland could rise by almost 1.5°C in ten years (1920 to 1930), a similar drop in the temperature in the late middle ages was surely reasonable?
The climatic research community soon became aware of the unusual situation. Before 1940 this temperature rise seemed attributable to an anthropic increase
/climatology/articles/nr/1138