study and location of catchments. Catchment vhm278 is embedded
within vhm148 and catchment vhm277 is embedded within vhm149.
9
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Q
m³
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VHM 148
S O N D J F M A M J J A
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/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_007.pdf
of
temperature anomaly
(ºC) between 1991-2007
and 1961-1990
Variation of annual T
anomaly (ºC)
between 1991-2007
and 1961-1990
Seasonal differences of P
anomaly (in %)
between 1991-2007 and
1961-1990
Seasonal differences of Q
anomaly (in %) between
1991-2007 and 1961-1990
Variation of annual P and Q
anomaly (%)
between 1991-2007
and 1961-1990
-40
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5
20
35
50
1
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6
/media/ces/Kriauciuniene_Jurate_CES_2010.pdf
series analysis
Regional series are compiled based on regions
having similar climatological characteristics and
streamflow regimes. These series are also useful
for evaluating patterns and trends, both in time and
by region. Regional series for precipitation,
temperature and runoff are being compiled,
updated and analysed within the CES project.
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4
0
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W
S
P
S
U
M
A
Q
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%
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4
0
/media/ces/ces_SA_group_flyer_new.pdf
vhm145 Vestari-Jökulsá D+J+L 844 751 11.3 924 1971–2014
vhm167 Austari-Jökulsá D+J 553 916 28.8 1208 1985–2014
8
vhm59
vhm64
vhm66
vhm102
vhm116
vhm162
vhm233
vhm235
vhm238
vhm144
vhm145
vhm167
Figure 1. Location of river basins.
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Days since Sept. 1st
Q
(m
³/s
)
vhm59
S O N D J F M A M J
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_009.pdf
the index flood µi(D). For gauged sites, µi(D) is estimated by the sample mean
whereas for ungauged sites, µi(D) is estimated indirectly as a function of physiographic and
climatic catchment characteristics (Ci;k):
bµi(D) = f (Ci;k);k = 1;n: (2)
This estimation is usually performed using the power-form equation:
bµi(D) = q0C
q1
i;1C
q2
i;2::::C
qk
i;k:::C
qn
i;n: (3)
where q denotes the vector
/media/vedurstofan/utgafa/skyrslur/2014/VI_2014_001.pdf
a precipitation value from a given location based on values
from a regular gridded dataset. ................................................................................................. 28
Figure 7. Scatterplots and Q–Q plots comparing daily precipitation from the ICRA dataset and
observations with different extraction methods for station Eskifjörður. .................................. 30
/media/vedurstofan-utgafa-2020/VI_2020_008.pdf
We are hoping to find time to improve this glossary. Only a few items are available. For your relevant search, please click on one of the letters below:
A Á B C D E É F G H I Í J K L M N O Ó P Q R S T U Ú V W X Y Ý Z Þ Æ Ö
A
A: Icelandic abbreviation of East (compass direction, easterly, eastern).
ANA: Icelandic abbreviation of Eastnorthesast (compass direction).
ASA: Icelandic
/weather/articles/nr/1208
We are hoping to find time to improve this glossary. Only a few items are available. For your relevant search, please click on one of the letters below:
A Á B C D E É F G H I Í J K L M N O Ó P Q R S T U Ú V W X Y Ý Z Þ Æ Ö
A
A: Icelandic abbreviation of East (compass direction, easterly, eastern).
ANA: Icelandic abbreviation of Eastnorthesast (compass direction).
ASA: Icelandic
/weather/articles/nr/1208/
of the analogue method is introduced. In Section 3 hydrological and me-
teorological data used in the analysis are presented. Section 4 describes the different strategies
considered for implementing the method and Section 5 presents some results. Some concluding
remarks are made in Section 6.
2 The analogue method
Let X(t) be a state of a dynamical system at time t, known through the observation of k variables
/media/vedurstofan/utgafa/skyrslur/2013/VI_2013_008.pdf
of the deterministic forecast were measured by the mean
error (ME), root-mean squared error (RMSE) and Nash-Sutcliffe coefficient (Nash and Sutcliffe,
1970).
3 Data
3.1 Meteorological data
Predictors:
Mean sea level pressure (MSLP), geopotential height (Z), specific humidity (q) and tem-
perature (T) at different pressure levels constitute the predictors describing the meteoro-
logical situations at synoptic
/media/vedurstofan/utgafa/skyrslur/2014/VI_2014_006.pdf