All-Sky Downwelling Longwave Radiation and Atmospheric-Column Water Vapour and Temperature over the Western Maritime Arctic

Figures & data

Fig. 1 Locations of the CCGS Amundsen during the 2007–08 IPY-CFL field campaign and during the ArcticNet2009 field campaign. There is one dot per day at the median ship position on that day.

Fig. 2 Hourly all-sky LWd (W m⁻²) divided by (1 + aC) versus atmospheric-column (a) PW (mm) and (b) mean temperature (°C) for the developmental sample.

Fig. 3 For the validation sample, observed hourly all-sky LWd (W m⁻²) versus (a) estimated LWd from atmospheric-column PW (mm) and (b) estimated LWd from atmospheric-column mean temperature (°C).

Fig. 4 Annual cycle of LWd (W m⁻²) over the western maritime Arctic estimated from monthly median and maximum PW values using the all-sky parameterization.