Journal of Geophysical Research – Atmospheres
Supporting Information for
The climatological distribution of extreme Arctic winds, and implications for ocean and sea ice processes
Mimi Hughes 1,2 and John J. Cassano 1,3
Cooperative Institute for Research in the Environmental Sciences, University of Colorado, Boulder
National Oceanic and Atmospheric Administration, Earth System Research Laboratory, Physical Sciences Division,
Boulder, CO
Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder
Figures S1 to S5
Figures S1, S2, and S3 show the 90 th and 95 th percentiles of and maximum wind speeds in
WRF50, CFSR, COREv2, and ERA-I, for 1990-2007, respectively. Figure S4 shows maximum wind speeds over water and sea ice grid points for each day of the year for WRF50, CFSR,
COREv2, and ERA-I. Figure S5 shows the 99 th percentile wind speeds in WRF10, WRF50, and the difference over the Pan-Arctic domain for June 2005 – May 2007. These statistics were all calculated with the methods described in the main manuscript text.
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Figure S1. 90 th Percentile of 1990-2007 Pan-Arctic wind speeds (m s -1 ) in (a) WRF50, (b) CFSR,
(c) ERA-I, and (d) COREv2. Black lines show terrain contours at 10 m then every 800 m starting at 100 m and grey lines show latitude and longitude every 15 and 20 degrees, respectively.
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Figure S2. 95 th Percentile of 1990-2007 Pan-Arctic wind speeds (m s -1 ) in (a) WRF50, (b) CFSR,
(c) ERA-I, and (d) COREv2. Black lines show terrain contours at 10 m then every 800 m starting at 100 m and grey lines show latitude and longitude every 15 and 20 degrees, respectively.
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Figure S3. Maximum 1990-2007 Pan-Arctic wind speeds (m s -1 ) in (a) WRF50, (b) CFSR, (c) ERA-
I, and (d) COREv2. Black lines show terrain contours at 10 m then every 800 m starting at 100 m and grey lines show latitude and longitude every 15 and 20 degrees, respectively.
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Figure S4. Maximum wind speed (m s-1) over water and sea ice grid points for each day of the year for (green) WRF50, (red) ERA-I, (blue) CFSR, and (grey) COREv2 during 1990-2007.
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Figure S5. (a, b) 99th percentile of June 2005 – May 2007 Pan-Arctic wind speeds (m s -1 ) in (a)
WRF50 and (b) WRF10. (c) Difference between WRF10 and WRF50 99th percentile June 2005 –
May 2007 wind speeds (m s -1 ). Black lines show terrain contours at 10 m then every 800 m starting at 100 m and grey lines show latitude and longitude every 15 and 20 degrees, respectively.
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