(Table 1) White ice and melt pond characteristics in Darnley and Franklin Bay, Canada ...

• Main Authors: Ehn, Jens K, Mundy, Christopher John, Barber, David G, Hop, Haakon, Rossnagel, Andrea L, Stewart, Jeremy
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Event label; Sample type; DATE/TIME; Site; Freeboard; Melt pond freeboard; Melt pond depth; Sea ice thickness; Ice draft; Water level; Irradiance, incident, photosynthetically active; Irradiance, incident; Transmittance, photosynthetically active; Transmittance; Ice measurement; IPY-4; International Polar Year 2007-2008 IPY; Arctic; Arctic Ocean; Canada; Darnley; Franklin Bay; International Polar Year; IPY; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.809476; https://doi.pangaea.de/10.1594/PANGAEA.809476

Melt pond covered sea ice is a ubiquitous feature of the summertime Arctic Ocean when meltwater collects in lower-lying areas of ice surfaces. Horizontal transects were conducted during June 2008 above and below landfast sea ice with melt ponds to characterize surface and bottom topography together with variations in transmitted spectral irradiance. We captured a rapid progression from a highly flooded sea ice surface with lateral drainage toward flaws and seal breathing holes to the formation of distinct melt ponds with steep edges. As the mass of the ice cover decreased due to meltwater drainage and rose upward with respect to the seawater level, the high-scattering properties of ice above the water level (i.e., white ice) were continuously regenerated, while pond waters remained transparent compared to underlying ice. The relatively stable albedos observed throughout the study, even as ice thickness decreased, were directly related to these surface processes. Transmission through the ice cover of incident ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...