Past changes in climate and
hydrology
Anders Moberg
Department of Physical Geography and Quaternary Geology
Stockholm University
Conference on Future Climate and Renewable Energy:
Impacts, Risks and Adaptation
Oslo, 31 May 2010
http://data.giss.nasa.gov/gistemp/
This year so far (Jan – Apr) ...
Temperature anomaly (°C) from 1951-80 mean
http://www.metoffice.gov.uk/climatechange/science
/media/ces/Moberg_Anders_CES_2010.pdf
Oddur Sigurðsson, Óðinn Þórarinsson, Philippe Crochet, Tómas Jóhannesson & Þorsteinn Þorsteinsson (2012). Floods in Iceland. In: Z. W. Kundzewicz (ed), Changes in Flood Risk in Europe. Oxfordshire: IAHS Special Publication 10, 257-276.
Hálfdán Ágústsson & Haraldur Ólafsson (2012). The bimodal downslope windstorms at Kvisker. Meteorology and Atmospheric Physics 116(1-2), 27-42, doi:10.1007/s00703
/about-imo/arctic/completed-projects/publications/
and Irrigationa
Scenario Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Current 101 85 59 13 6 4 1 6 39 79 8497
A2 145 132 73 10 10 7 6 8 4 75 92 123
B2 137 119 75 16 6 6 6 5 21 74 110 141
aValues are in millimeters.
10 of 18
W00A15 VAN ROOSMALEN ET AL.: CLIMATE AND LAND USE CHANGE W00A15
time and larger area where groundwater levels rise above
the drain levels. Table 6 shows the mean discharges
/media/loftslag/vanRoosmalen_etal-2009-WRR_2007WR006760.pdf
(alb: AWS)
MODELLING LONG-TERM SUMMER AND WINTER BALANCES
? The authors 2009
Journal compilation ? 2009 Swedish Society for Anthropology and Geography 241
ed temperatures relative to –20°C to account for de-cay of snow albedo at temperatures below the melt-ing point, following a study by Winther (1993). Wetested both approaches, and chose to use –5°C asthe minimum for the accumulated temperature
/media/ces/GA_2009_91A_4_Andreassen.pdf
was therefore formed
by ice lifting and deformation induced by subglacial water pressures higher than ice
overburden pressure.
The discharge data and the derived size of the subglacial flood path, as indicated
by the volume of water stored subglacially, indicates a development towards more
efficient subglacial flow over the course of the jökulhlaup. Thus, a discharge in the
iii
range 80–90 m3 s 1
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
(Quante and Colijn, 2016). Work on risk analysis and adaptation is in different
stages in the countries of the world.
Coastal floods have caused problems in Iceland in the past (Jóhannsdóttir, 2017) and are likely to do
so in the future as well. Large coastal floods can be expected in Iceland every 10 - 20 years and the
probability of such events can rise with climate change (Almannavarnir, 2011
/media/vedurstofan-utgafa-2020/VI_2020_005.pdf
11 / 12 MPI-ESM-LR REMO2009 45 / 85
13 / 14 IHCEC-EC-Earth RCA4 45 / 85
15 / 16 IHCEC-EC-Earth COSMO-CLM4-8-17 45 / 85
17 / 18 CNRM-CERFACS-CM5 RCA4 45 / 85
19 / 20 CNRM-CERFACS-CM5 COSMO-CLM4-8-17 45 / 85
11
3 Which domain, resolution, and models of the CORDEX
project should be selected for the analysis of 21st
century climate change in Iceland?
The subject of this chapter
/media/vedurstofan-utgafa-2017/VI_2017_009.pdf
meteorological services for large areas of the North Atlantic and Green-
land. It is the second largest aviation service region in the world. Over the course of a decade IMO was modernized
and sta?ed to meet the highest international requirements. The Icelandic public and economic sectors, in particular
the fisheries, transportation and agriculture, benefitted hugely from this development making
/media/vedurstofan-utgafa-2020/VI_arsskyrsla2020.pdf
.................... 85
8
Figure 57 50% PM10 probability map for an eruption like 1362 at Öræfajökull ..................... 86
Figure 58 The probability of exceedance curve at key locations (Öræfajökull) ...................... 87
Figure 59 Tephra accumulation rate on the ground on 7 May 1982 (Öræfajökull) ................. 88
Figure 60 Tephra accumulation rate on the ground on 5 May 1981 (Öræfajökull
/media/vedurstofan-utgafa-2020/VI_2020_004.pdf
Nesjum
0-5 5-10 10 15 20-15
2008-2018
1979-1989
Dæmi um ólíkt rennslismynstur.
100
9080
70
60
50
40
30
20
10
0
Júní
mánaðarmeðaltal
Ársmeðaltal
Rennsli
m
3 /s
Sigurvegarinn í getraun Veðurstofunnar á Vísindavöku Rannís hlaut
heimsókn á Veðurstofuna að launum. Salka Elín Sæþórsdóttir ásamt
vinum sínum, Ými og Bjarti. Með þeim á myndinni er Ragnar Heiðar
Þrastarson, fagstjóri landfræðilegra
/media/vedurstofan/utgafa/arsskyrslur/VI_Arsskyrsla_2018_vef.pdf