Airborne Measurements of Volcanic Ash - results from Eyja and the new Met Office Civil
Contingency Aircraft Jonathan P. Taylor, UK Met Office
11:15 Observational systems for monitoring of volcanic ash Sibylle von Löwis, Geirfinnur S.
Sigurðarson, IMO
11:45 NAME dispersion model, an introduction Jonathan P. Taylor, UK Met Office
12:15 – 13:30 Lunch break
The volcanic ash problem
/media/vedurstofan/utgafa/hlidarefni/program17012012.pdf
Refsgaard a,*, Jeroen P. v
Peter A. Vanroll
a Geological Survey of Denmark and Greenlan
b Copernicus Institute for Sustainable Development and Innovation
Utrecht University, Utrecht
c
Environmental Modelling & Softwar
equitable manner without compromising the sustainability of
* Corresponding author. Tel.: þ45 38 142 776; fax: þ45 38 142 050.
E-mail address: jcr@geus.dk (J.C. Refsgaard).
1364-8152
/media/loftslag/Refsgaard_etal-2007-Uncertainty-EMS.pdf
(-33%) during 1970 to 2004 has been smaller than the com-
bined effect of global income growth (77%) and global population
growth (69%); both drivers of increasing energy-related CO2 emis-
sions. The long-term trend of declining CO2 emissions per unit of en-
ergy supplied reversed after 2000. {WGIII 1.3, Figure SPM.2, SPM}
Differences in per capita income, per capita emissions and
energy
/media/loftslag/IPPC-2007-ar4_syr.pdf
were carried out to obtain the flow and
sliding parameters for Hoffellsjökull that resulted in a good
simulation of the observed 20th century evolution of the
glacier geometry. The obtained values for the rate factor
and the sliding parameter are A= 4.6× 10−15 s−1 kPa−3 and
C = 10× 10−15 m a−1 Pa−3, respectively.
The ice divide is kept at a fixed location in the model com-
putations presented here
/media/ces/Adalgeirsdottir-etal-tc-5-961-2011.pdf
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/media/loftslag/Group-1_Scenarios-for-AWM.pdf
model grid point must be taken into account. At latitude f , the grid-box
size is given by
dA = a2 cosf dldf ; (1)
where a = 6371 km is the Earth’s mean radius, and latitude and longitude are measured in
radians. For the ECMWF reanalyses, angular grid-point spacing dl = df = p=180 is constant
across the domain. The low-pressure centre count at each grid point is then multiplied by dA=dA,
with mean
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_005.pdf
in an overall
cold bias, compared with station measurements. To test, whether this is due to the HARMONIE
model core or the external surface scheme, biases of 2-m temperature from SURFEX are com-
pared with biases of temperature projected from the lowest two model levels to 2 mAGL. It is
found that the negative temperature biases are due to shallow inversion layers near the ground,
which are introduced
/media/vedurstofan/utgafa/skyrslur/2014/VI_2014_005.pdf
adaptive management
structured process of learning by doing with the aim
scien
Involv
e a large scale, holistic alternative to reductionism
ce; and
Hel
B
p build flexible management capacity.
efficie
e learning about water resource systems more
nt.
adaptive water management (Pahl-Wostl and Sendzimir,
2005).
Adaptive management (AM) involves learning from
management actions and using
/media/loftslag/Henriksen_Barlebo-2008-AWM_BBN-Journ_Env_Management.pdf
developments (European Commission, Directorate-General for Research, Publication EUR 23339, 2009, ISBN 978-92-79-08885-8, ISSN 1018-5593, DOI 10.2777/12871. Edited by T. Jóhannesson, P. Gauer, P. Issler and K. Lied. Contributions by M. Barbolini, U. Domaas, T. Faug, P. Gauer, K. M. Hákonardóttir, C. B. Harbitz, D. Issler, T. Jóhannesson, K. Lied, M. Naaim, F. Naaim-Bouvet and L. Rammer) (pdf 1.6 Mb; high
/avalanches/imo/protective/
be ordered at the EU Bookshop and it can be accessed on the web both as PDF suitable for the screen (1.5 Mb) and in higher resolution suitable for printing (27.9 Mb).
Edited by T. Jóhannesson of the Icelandic Meteorological Office and by P. Gauer, P. Issler and K. Lied of the Norwegian Geotechnical Institute. Contributions by M. Barbolini, U. Domaas, T. Faug, P. Gauer, K. M. Hákonardóttir, C. B
/about-imo/news/nr/1631