2009–2015. ..... 38
Figure 14. Declustering of the first 1,000 days of data for a randomly selected grid-point using
a minimum time window of five days. ..................................................................................... 39
Figure 15. Scatterplots comparing return levels of precipitation based on simulations and
observations
/media/vedurstofan-utgafa-2020/VI_2020_008.pdf
measuring 1.0 mm and more was only 109, i.e. 39 days
fewer than the average. This is a typical value in this part of the country. In the north and east
the number of precipitation days was about 10 below the normal.
Snow
The snowfall was exceptionally slight in the south and west, the number of days with total
snow cover in Reykjavík was only 16, i.e. 39 days below the 1961 to 1990 average
/media/vedurstofan/utgafa/skylduskil/ved-eng-2010.pdf
by
rescaling a dimensionless regional flood frequency distribution or growth curve, qR(D;T ), com-
mon to all sites of the homogeneous region, with the so-called index flood, µi(D), of the target
site:
bQi(D;T ) = µi(D)qR(D;T ); (1)
where bQi(D;T ) is the estimated flood quantile, i.e. the T -year flood peak discharge averaged
over duration D, at site i. The regional growth curve, qR(D;T
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_009.pdf
to be simple and therefore has important drawbacks.
Future improvements should be made in the light of applications within a larger toolbox of scenario
methods.
2008 Elsevier Ltd. All rights reserved.
* Tel.: +31 317 482422; fax: +31 317 419000.
E-mail address: kasper.kok@wur.nl.
Contents lists available at ScienceDirect
Global Environmental Change
journa l homepage: www.e lsev ier .com/ locate
/media/loftslag/Kok_JGEC658_2009.pdf
by parametric methods. Hydrology Research 39, 425-436.
Jónsdóttir, J. F., Uvo, C. B. (2009). Long-term variability in precipitation and streamflow in Iceland and relations to atmospheric circulation. Int. J. Climatol. 29, 425-436. doi: 10.2166/nh.2008.002.
Lawrence, D., Haddeland, I. Uncertainty in hydrological modelling of climate change impacts in four Norwegian catchments. Hydrology Research
/ces/publications/nr/1943
) will in general be be better
and more consistent when using automatic instead of
manual calibration.
10
40
70
1
0
0
0 13 26 39 52
Week
Res
er
voir l
ev
el
(%
)
1
All capacities and costs will be updated to the
expected system in 2020. Some uncertainty regarding
the amount of new renewable generation and/or
climate will be analyzed in different cases. We will
make a model for Norway, Sweden
/media/ces/esa_flyer_new.pdf