and the y-axis the dates between March and July. For every year,
the melt season starting date is plotted (blue dots), and a blue line connects the dates for all the
years. A regression line fitting those values (orange line) is shown, and the difference in days
between the beginning and the end of the period, as calculated from the regression line, is
indicated at the top of the plot.
In 9 cases
/media/vedurstofan-utgafa-2022/VI_2022_006_extreme.pdf
in the reference period was +4.9°C.
When this value is inserted into the best fitting linear trends in Figure 7 it yields a
temperature rise of +1.8°C for RCP4.5 and +3.1°C for RCP8.5 in the 21st century.
Spatial and seasonal trends
We expect the warming of the land to be greater than the warming of the ocean. Since the
ocean covers more than 70% of the Iceland domain it is interesting to look
/media/vedurstofan-utgafa-2017/VI_2017_009.pdf
temperature and precipitation were calculated
from year 2010 to the end of the 21st century by fitting a
least squares line to monthly values simulated by the RCM
www.the-cryosphere.net/5/961/2011/ The Cryosphere, 5, 961–975, 2011
968 G. Aðalgeirsdóttir et al.: 20th and 21st century evolution of Hoffellsjökull glacier
or GCM from 2010 onwards and shifting the simulated time-
series so that the 2010
/media/ces/Adalgeirsdottir-etal-tc-5-961-2011.pdf