Head in a Cloud

troposphere and stratosphere meet blogosphere

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Entries Tagged as 'aerosols'

Effects of Absorbing Aerosols on Cloud Absorption and Forcing

March 25th, 2008 · No Comments

It would be assumed that in the exploration of the albedo and forcing ratios of pure clouds, one would attain values equal to 1.0. This being the case, how would an observer go about explaining an albedo ranging from .7 to .8 or a cloud forcing ratio consisting of 1.5? These two aberrations have been [...]

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Tags: aerosols · clouds · modeling · MTR3440 · Uncategorized

Climate engineering

December 6th, 2007 · 8 Comments

For journal club this week, I discussed an editorial about climate engineering [Crutzen, 2006] and a response to  this editorial [Bengsston, 2006]. Crutzen proposes injecting SO2 into the stratosphere to counteract global warming caused by the combustion of fossil fuels.  The SO2 should oxidize to form sulfuric acid, and this acid will condense to form [...]

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Tags: aerosols · ATOC Journal Club

Upper Tropical Tropospheric COS

October 1st, 2007 · No Comments

For the ATOC Journal Club I discussed a paper entitled Enhance Upper Tropical Tropospheric COS: Impact on the stratospheric aerosol layer, by J. Notholt et al. 2003. First what is COS, well it is carbonyl sulfide, which is created when carbonyl (carbon and oxygen) forms a double bond with sulfur. COS converts to sulfur dioxide [...]

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Tags: aerosols · ATOC Journal Club · stratosphere

Year 2100: Yup, Even Hotter!

September 27th, 2007 · 3 Comments

Editor’s note:  We are proud to begin presenting summaries of the presentations made at the weekly ATOC Journal Club.  Below is the first posting, by Jason English, based on a talk he gave yesterday.  We hope these postings will serve as a useful forum for post-Journal Club discussions.  Enjoy!  -Sean In July, Chen et. al. [...]

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Tags: aerosols · ATOC Journal Club · climate · global warming · modeling · troposphere

Cloud Burning!

May 17th, 2007 · 1 Comment

I was writing a preapplication for a proposal last week, so I had to review a bunch of literature. I found a fun one that one of my collaborators wrote a while back on “cloud burning.” Ackerman et al., “Reduction of tropical cloudiness by soot,” Science 288, 1042-1047. Generally, aerosol particles are thought to cool [...]

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Tags: aerosols · climate