Head in a Cloud

troposphere and stratosphere meet blogosphere

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Entries Tagged as 'satellite'

“The Role of Cloud-Top Brightness Temperatures in the Production of Heavy Precipitation”

March 7th, 2008 · 3 Comments

“The operational meteorological community is increasingly realizing the important role of cloud microphysics in the production of heavy precipitation, especially snow(e.g., Roebber et al. 2003)”. This is a direct quote from the journal article “Cloud-Top Temperatures for Precipitating Winter Clouds” by Jay W. Hanna, David M. Schultz, & Antonio R. Irving, of which I will [...]

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Tags: clouds · MTR3440 · satellite · troposphere

Forcing in the Stratosphere

March 28th, 2007 · No Comments

Recently I read an interesting paper in science magazine titled Anthropegenic and Natural Influences in the Evolution of Lower Stratospheric Cooling by V. Ramaswamy et al. Different atmospheric forcings (natural and anthropogenic) and their degree of influence are analyzed using data and models. NOAA satellites, specifically channel 4 of the microwave sounding unit (MSU), provide [...]

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Tags: climate · modeling · satellite · stratosphere

Oops, we may have misunderstood our satellite data

March 5th, 2007 · 2 Comments

It seems that the International Satellite Cloud Climatology Project (ISCCP) has given us some “bad” data regarding long-term cloud level studies. Evan et al. argues for this in a letter published in GRL vol. 34, 2007. The abstract reads, The International Satellite Cloud Climatology Project (ISCCP) multi-decadal record of cloudiness exhibits a well-known global decrease [...]

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Tags: instruments · satellite

Cloud Overlap Statistics

September 13th, 2006 · 2 Comments

I’ve been back from vacation for a couple of days, and things are starting to settle back down a little. On my flight to Ecuador, I read a recent GRL paper entitled “Instantaneous cloud overlap statistics in the tropical area revealed by ICESat/GLAS data”, by Likun Wang and Andrew Dessler. …In the paper, Wang and [...]

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Tags: climate · satellite

GCR’s, Clouds, and Climate, Oh My!

July 31st, 2006 · No Comments

If you were at a BBQ with a group of atmospheric scientists, and wanted to raise some hackles, there are several subjects that are notoriously easy to get people riled up… …Talk of Hockey Sticks, Inhofe, Crichton, Coulter, and you’re sure to get people going… …Bring up the effects of galactic cosmic ray’s (GCR’s) on [...]

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Tags: climate · cosmic rays · satellite