to glacial river surges in the river Múlakvísl conductivity in the river starts rising. This elevation of conductivity can last several days before an actual river surge starts.The glacial outburst flood can be expected to reach its maximum within a few hours. People are advised to stay away from the river due to gas pollution, the river is showing a dark colour and smells of sulphur. The Department
/about-imo/news/glacial-outburst-flood-in-mulakvisl
on ash this morning. Seismic tremor has been ongoing and is at a strong level this morning.
No flood has been reported. A gauging station near the Markarfljót bridge is being improved and a team from IMO is investigating floodmarks and flood elevation to measure the spread of the flood from Gígjökull on the first day of the eruption, 21 April.
See also Questions and Answers
/about-imo/news/nr/1881
2010, as seen at 12:00 GMT at an elevation of 3-3.6 km (10-12,000 ft). Light coloured, low-lying clouds of steam were observed over the eruption site, together with occasional bursts of grey to black-coloured cloud, which rise to up to half of the total height of the eruption plume. Above this level, the plume was lighter in colour with a capping of white cloud (not visible here
/about-imo/news/bigimg/1891
Eruption in Eyjafjallajökull
Status Report: 18:00 GMT, 26 April 2010
Icelandic Meteorological Office and Institute of Earth Sciences, University of Iceland
Compiled by: MJR / GNP / BO / FS
Based on: IMO seismic monitoring; IES-IMO GPS monitoring; IMO river gauges;
information from local police and IES geologists inspection of tephra
Eruption plume:
Height (a.s.l.): Mean elevation of 4.8 km
/media/jar/Eyjafjallajokull_status_2010-04-26_IES_IMO.pdf
....................................................................................... 16
Mass balance and volume changes of Eyjafjallajökull ice cap, from 1984 to 2010, deduced by
multi-temporal elevation maps
Victoria H. Hamilton Morris ................................................................................................. 17
Construction and analysis of lidar mosaics of sea ice floe
/media/vatnafar/joklar/Reykholt-abstracts.pdf
et al., 2005)
Data
Climate data, calibration period
Monthly air temperature: ERA-40 reanalysis (0.5°×0.5°), 1958-2001
Monthly precipitation: Precipitation climatology VASClimO,
1951-2000, 0.5°×0.5° (Beck et al., 2005)
Elevation-dependent mass balance data for individual glaciers
Mass-balance data
Data
Climate data, calibration period
Monthly air temperature: ERA-40 reanalysis
/media/ces/Hock_Regine_CES_2010rs.pdf
; Eyjafjallajo¨kull;
Torfajo¨kull; Tindfjallajo¨kull.
Correspondence
Sverrir Gudmundsson, Institute of Earth
Sciences, University of Iceland, Sturlugata
7, Askja, Reykjavı´k IS-101, Iceland.
E-mail sg@raunvis.hi.is
Abstract
We assess the volume change and mass balance of three ice caps in southern
Iceland for two periods, 19791984 to 1998 and 1998 to 2004, by comparing
digital elevation models (DEMs
/media/ces/Gudmundsson-etal-2011-PR-7282-26519-1-PB.pdf
deformation show that land continues to
rise since the previous eruption with no significant changes in the last year. The
biggest measurable change was that sulfur dioxide (SO2) was detected
close to the last eruption site. SO2 emissions give a strong
indication of magma degassing.Measurements of the elevation of the ice over Grímsvötn
made by IES show that it has risen 10 m steadily since
/about-imo/news/the-civil-protection-scientific-advisory-board-meets-to-discuss-the-status-of-grimsvotn