Vergent Posted January 9, 2012 Share Posted January 9, 2012 Melt ponds have become melt holes, creating a new niche, fertilized by sea water. http://www.tos.org/o...ve/24-3_lee.pdf The algae content decreases the albedo, making early next year melt holes. This lets the insolation in and thins the ice. Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 9, 2012 Share Posted January 9, 2012 If there is a decrease in the albedo value of the ice itself due to "algae" or anything else within this subjective arena, it is incredibly minute. Link to comment Share on other sites More sharing options...
Alpha5 Posted January 10, 2012 Share Posted January 10, 2012 Cool Algae is not only creating global warming, but is getting killed by it too http://www.radioaustralia.net.au/pacbeat/stories/201008/s2970588.htm Link to comment Share on other sites More sharing options...
TerryM Posted January 10, 2012 Share Posted January 10, 2012 Additional algae allegedly abate Arctic albedo. Aha, AGW again! Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 10, 2012 Share Posted January 10, 2012 Cool Algae is not only creating global warming, but is getting killed by it too http://www.radioaust...08/s2970588.htm Wait so it less algae = less warming = less algae killed? Or is it more algea = more warming = more algae killed? Link to comment Share on other sites More sharing options...
Vergent Posted January 11, 2012 Author Share Posted January 11, 2012 If there is a decrease in the albedo value of the ice itself due to "algae" or anything else within this subjective arena, it is incredibly minute. "we found large masses of algae (Figure 2a; diameter > 10 cm) in the refrozen surface ice of open ponds (stations D83, 83°N, 151°W, and D82, 81°56.0'N, 154°10.4'W). No algae were visible in surface ice of closed ponds." It looks like the algae has an albedo around 0.5. In May insolation, this corrisponds to 200 W/m^2. Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 12, 2012 Share Posted January 12, 2012 It looks like the algae has an albedo around 0.5. In May insolation, this corrisponds to 200 W/m^2. Link to comment Share on other sites More sharing options...
Vergent Posted January 12, 2012 Author Share Posted January 12, 2012 In may the arctic insolation reaches 400w/m^2 24/7. A 0.5 albedo would be absorbing 200w. Link to comment Share on other sites More sharing options...
BethesdaWX Posted January 12, 2012 Share Posted January 12, 2012 In may the arctic insolation reaches 400w/m^2 24/7. A 0.5 albedo would be absorbing 200w. I thought you said 200W/m^2 of RF increase would result in the summer from algae increase? Link to comment Share on other sites More sharing options...
The_Global_Warmer Posted January 12, 2012 Share Posted January 12, 2012 Wouldn't there still be snow on top of them in May? Also is that average insolation or total possible if it was clear 24/7 Link to comment Share on other sites More sharing options...
Vergent Posted January 12, 2012 Author Share Posted January 12, 2012 Wouldn't there still be snow on top of them in May? Also is that average insolation or total possible if it was clear 24/7 You are right, wattage from insolation*albedo < 200W. Link to comment Share on other sites More sharing options...
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