a systematic com-
parison of results to observed precipitation has been carried out. Un-
dercatchment of solid precipitation is dealt with by looking only at
days when precipitation is presumably liquid or by considering the
occurrence and non-occurrence of precipitation. Away from non-
resolved orography, the long term means (months, years) of observed
and simulated precipitation are often
/media/ces/Paper-Olafur-Rognvaldsson_92.pdf
of events closely.
Photo: Sigurlaug Gunnlaugsdóttir.
Bárðarbunga
Pálmi Erlendsson, Bergur H. Bergsson and others installing GPS and com-
munication equipment. Photos: Þorgils Ingvarsson and Benedikt G. Ófeigsson.
I C E L A N D I C M E T O F F I C E / A N N U A L R E P O R T 2 0 1 4
5
The magma intrusion from Bárðarbunga
to the eruption site at Holuhraun and
related tremor pulses
/media/vedurstofan/utgafa/skyrslur/2015/IMO_AnnualReport2014.pdf
is underestimated by ECMWF operational
analyses, with a warm bias in winter, and a cold bias in summer.
However, the question remains about the causes for the wintertime negative temperature biases
introduced by SURFEX. With a warm bias in the HARMONIE core model, the cooling of the
near-surface atmosphere must be related to the description of boundary-layer processes. In com-
parison with a detailed land
/media/vedurstofan/utgafa/skyrslur/2014/VI_2014_005.pdf
Field report - Holuhraun 4 March 2015
By Baldur Bergsson, Benedikt Ófeigsson, Richard Yeo, Sara Barsotti
General description of the eruption site
No signs of activity have been revealed. A diffuse bluish haze, at ground level, was visible across the
lava field.
The crater rim has several cracks at the very edge. While standing close to the crater rim it was possible
to hear rumbling due
/media/jar/field_report_04032015.pdf
Manage- Basic Purchase Road Road net- Const- Acquisi- Govern- Com- Participati- Value Miscel- Total 2009
ment and road of equip- system work post- ruction tion of ment missi- on of the added laneous cost
operating manage- ment develop- poned-, of land grants ons European tax over- level
costs ment ment comprehen- build- and com- Regional De- heads
1991- 1991- sive- and ings pensation
/media/loftslag/Traffc-maintenance_expenditures.pdf
a realistic
description of fast-rising jökulhlaups.
iv
Ágrip
Í Skaftá hafa mælst 45 jökulhlaup síðan 1955. Þessi hlaup vaxa hraðar en hefðbundin
jökulhlaup frá Grímsvötnum og hafa því verið nefnd „hraðvaxandi jökulhlaup“. Þau
eru upprunnin úr lónum sem eru undir eystri og vestari Skaftárkatli í vestanverðum
Vatnajökli. Kötlunum er viðhaldið af jarðhita.
Út frá gögnum um rúmmál hlaupvatns er
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
with 20% and 2% for the HIRHAM experiments
using HadAM3H and with 30% and 7% for the ECHAM-
driven experiments for Middle Europe and Scandinavia,
respectively.
[18] RCM output is not available for the entire period
1961–2100 because transient RCM simulations are com-
putationally very demanding. Instead two 30-year time
slices are available; one representative for the climate in
the period 1961–1990
/media/loftslag/vanRoosmalen_etal-2009-WRR_2007WR006760.pdf
is Iceland. For a detailed description
of the simulations refer to Rögnvaldsson et al. (2007, 2011). The data used here is that of the inner
domain. The initial and boundary conditions for the WRF model simulations were determined
by 6-hourly operational analyses obtained from the European Centre for Medium-Range Weather
Forecasts (ECMWF), valid at 00, 06, 12, and 18 UTC (which is local time in Iceland
/media/vedurstofan/utgafa/skyrslur/2013/2013_001_Nawri_et_al.pdf
for the first time in a real-time response situation. The exercise was a successful test of the response to an eruption.
See the FutureVolc website (source) for a more detailed description.
Older news relating to FutureVolc: 2015, 2014 and 2013.
News
2023
2022
/about-imo/news/nr/3277