The Daily Albedo Cycle

Fascinating analysis. Consistent with my tropical met training. Saturated boundary layer at dawn; weak inversion; AM insolation/heating overturns the boundary layer mixing drier/cooler air from aloft; random CU form; low/medium sun angle reflects off sides of CU casting medium/long shadows; late morning sun angle increases reducing CU shadow footprint; surface heating increases; random CU organize into TCU; max insolation/heating in early afternoon; CB and rainfall mid-late afternoon; surface insolation/heating reduced by CB-induced CS footprint; surface also cooled by rainfall and subsidence/downdraft of cooler drier air aloft. Rinse, repeat.

Watts Up With That?

Guest Post by Willis Eschenbach

I discussed the role of tropical albedo in regulating the temperature in two previous posts entitled Albedic Meanderings and An Inherently Stable System. This post builds on that foundation. I said in the latter post that I would discuss the diurnal changes in tropical cloud albedo. For this I use a marvelous dataset called the TAO dataset. It is measurements from a number of moored buoys in the tropical Pacific.

tao triton buoy location plus sstFigure 1. Locations of all of the TAO buoys ever in operation. Background shows the sea surface temperature.

Sadly, despite the billions spent on “global warming”, the TAO buoys don’t have funds for maintenance. As a result, the records from some have ceased entirely. But I digress … the great thing about the TAO buoy records is that they are either hourly, or every ten minutes, or even every two minutes in some cases…

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