indicates that about 60 million cubic metres of material are in motion. It is possible that the entire mass may be released as a single rockslide, it is also possible that the material may be released as several smaller rockslides. The age of these fractures is not well known. They are not visible on aerial imagery from the year 2003 but they are evident in an elevation model from 2011, indicating
/about-imo/news/fractures-in-svinafellsheidi-and-a-potential-rockslide-on-svinafellsjokull
than those described above, have occurred in Bárðarbunga, where the activity started. This is the same pattern as during previous days.
The highest magnitude during the last 24 hours was about 3.8, measured at 23:38 last night (20th August).
In addition to the news
Additional material on the web, now available in English, can be found through links on the long banner at the top of our front page
/about-imo/news/nr/2951
/risk willingness Part time
Hans Jørgen Henriksen, GEUS Adaptive managment - general Full time
Jens Christian Refsgaard, GEUS Uncertainty Full time
Adriaan Perrels, FMI Full time
Arrival
Course participants
Exercises
1
2
3
4
5
6
7
Course material
We will make course material ready before the start of the course and encourage students to read some specific material beforehand.
ECTS
The course
/media/vedurstofan/NONAM-PhD_program.pdf
of water level marks there indicate a maximum discharge of up to
18 106 m3 s 1 (Baker et al., 1993).
7
2.6 Jökulhlaup sediment concentration and Lahars
Jökulhlaups have high sediment concentrations where significant erodible material is
available in their course. This greatly increases their erosional power and affects the
density of the flood water. Icebergs that break of the glacier or frazil ice
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
Dashed lines encompass the V-shaped zone of tephra deposition. (c)
Oblique aerial view from west of the tephra plume at Grímsvötn on 2 November. Note the ashfall
from the plume. (Photo by M. J. Roberts.) (d) Weather radar image at 0400 UTC on 2 November.
The top portion shows its projection on an EW-vertical plane. The minimum detection height for
Grímsvötn is seen at 6 km, and the plume extends
/media/jar/myndsafn/2005EO260001.pdf
particles and natural source material
following volcanic eruptions”, between the University of Iceland, the Icelandic
Met Office (IMO), and the UK Met Office. The overall
aim of this research project is to analyze sources of airborne particles from
ash re-suspension events and dust storms with a view towards assessing the
potential impacts of these events on air quality and human health
/about-imo/news/funded-ms-student-opportunity-dust-and-ash-re-suspension-sources-in-emission-models
and effusive basaltic eruptions.The preceding repose period commands the SiO2 content of the first erupted magma, and at the same time the magnitude of the opening phase, i.e. the shorter the repose the smaller is the following eruption. The chemical composition of erupted material also changes with time in the eruption. The opening phase has the highest SiO2 content and during the eruption, it lowers
/volcanoes/about-volcanoes/hekla/hekla-eruptions/
to more than
100 km3.
Potential causes of landslides in volcanic environment:
Magma intrusion in the volcanoPhreatic eruptionEarthquake or an earthquake swarm beneath or
close to the volcanoHeavy precipitation over long periods of time or
short intense precipitation that saturates the soil, pyroclastic material or
tephraGeothermal alterations due to long term activity
or temporal
/volcanoes/volcanic-hazards/landslides/
Funded MS student opportunity
Formulation of dust and ash re-suspension
sources in emission models
About the project
This student opportunity is a part of a collaborative research project, called “Changes in the health
effects impact of aerosol particles and natural source material following volcanic eruptions”, between
the University of Iceland, the Icelandic Met Office (IMO
/media/frettir/AdMSstudent_May2017_.pdf