Not exact matches
A diminishing
albedo in Arctic sea ice can be
considered both the cause and effect of
changes in sea ice.
Whilst several methods for counteracting climate
change with geoengineering are
considered feasible, injecting sulfates or other fine aerosols into the stratosphere, thereby increasing planetary
albedo, is a leading contender.
I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in
albedo, effects of the deposition of soot and dust on snow and ice decreasing
albedo, and a recognition of the importance of GHGs that were probably not
considered 30 years ago, that the sensitivity has
changed so little over time.
That's pretty alarming, especially when
considered in the context of other positive feedbacks including
changes in
albedo from melting icecaps and release of carbon and methane from thawing permafrost.
The model
considers all relevant feedback processes caused by
changes of water vapour, lapse - rate, surface
albedo or convection and evaporation.
I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in
albedo, effects of the deposition of soot and dust on snow and ice decreasing
albedo, and a recognition of the importance of GHGs that were probably not
considered 30 years ago, that the sensitivity has
changed so little over time.
Dr Curry, When
considering changes in
albedo due to melting, pools, etc, is there also consideration that the Sun is very low in the sky and much of the incoming Solar is reflected off water as glare?
Once you've solve that, you could
consider how it would
change if the
albedo were about 0.12 (the Moon) and how it would
change if the 1 square metre patch were at a different latitude.
Just because you can not measure it, or do not have the time to
consider all of the
changes in the sun and how it affects the planet's
albedo, does not mean it is not there.
That's a pretty silly claim on Dr. Curry's part if you
consider that in the months the arctic sea ice isn't diminished, there's never really so much sunlight as you'd count it against the average, so whatever
albedo changes there are during the half of the year that matters, they're when the sun is at its highest angle.
Consider the hemispherical distribution of land vs water to gain a sense of the size of the mismatch (and the subsequent relative
changes in
albedo between glaciation and interglacial).