) noted that Iceland had a maritime
climate that was much milder than its position on the globe might suggest. In
data from 1981–2010, Iceland annual average temperatures ranged from 6°C at the
south coast to 3°C at the north coast, with a substantially colder highland
interior. In comparison with the latitudinal average for the same period, the
coastal temperatures in Iceland are 8–10°C warmer
/climatology/iceland/climate-report/
6University of Washington,
Seattle, WA 98195, USA. 7NOAA Geophysical Fluid
Dynamics Laboratory, Princeton, NJ 08540, USA.
*Author for correspondence. E-mail: cmilly@usgs.gov.
An uncertain future challenges water planners.
Published by AAAS
on July 12, 201
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POLICYFORUM
combined with opera-
tions
/media/loftslag/Milly_etal-2008-Stationarity-dead-Science.pdf
model setup are typically too large by up to an order of magnitude.
This, combined with strong forcing at the model boundaries, results in a systematic spatial bias in
low-level wind speed, with too strong winds in coastal regions, and too weak winds in the interior.
Figure 5 shows a comparison of average wind speed at 10 mAGL between the WRF model and
station measurements. Model data is interpolated
/media/vedurstofan/utgafa/skyrslur/2013/2013_001_Nawri_et_al.pdf
scenario, precipitation increased by 10–15% from 1961–90 to
2070–99, and by 5–10% for the lower emitting scenarios (corresponding to approximately 0.5–1%
per decade).
The CE project also examined RCM results for Iceland based on the HIRHAM model (Haugen and
Iversen, 2006). These results showed enhanced warming over the interior of Iceland compared with
the coastal zone, and a tendency for enhanced
/media/ces/2010_005_.pdf
are largest. Positive sensible heat fluxes also occur over
the interior regions of Vatnajökull and Hofsjökull at around noon on 27 July, due to the cold
northeasterly flow over the glaciers (see Figure 10). However, along the edges and on the other
icecaps, sensible heat fluxes under clear skies are directed from the atmosphere to the snow. On 3
August, with clear skies, weak winds, and with above freezing
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_006.pdf
the
interior of the ice sheet is somewhat too dry (Fig. 9b). By average a mean negative precipitation
bias of 0.16myr−1 results which equals 43% of the mean from Burgess et al. (2010) (Table 2).
6 Bias Correction and Future Scenario Runs
After having specified a number of biases in the RCM output the model runs were repeated
with bias-corrected RCM data.
To correct the temporal bias of Ta, daily
/media/ces/ces_geus_paakitsoq_full_report.pdf
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