Brient Alb is based on the correlation in CMIP5 models between ECS, and the relationship of shortwave (SW) reflection by low
clouds over tropical oceans (TLC) with SST.
This type of precipitation is very common from shallow cumulus
clouds over tropical oceans.
There's an even quicker - acting possibility for negative feedback: More warming might create more
clouds over the tropical oceans, their whiteness reflecting more of the sun's heat back into space and thereby cooling things somewhat.
Projections differ widely among climate models, and differences in the solar reflection by low
clouds over tropical oceans account for much of the spread in climate projections across current models.
Not exact matches
A new analysis using changes in
cloud cover
over the
tropical Indo - Pacific
Ocean showed that a weakening of a major atmospheric circulation system
over the last century is due, in part, to increased greenhouse gas emissions.
The modeled mean CWCs [
cloud water]
over tropical oceans range from ∼ 3 % to ∼ 15 × of the observations in the UT and 40 % to 2 × of the observations in the L / MT.
The Pavlakis et al (2008) paper «ENSO Surface Shortwave Radiation Forcing
over the
Tropical Pacific» identifies the variations in surface downward shortwave radiation
over portions of the Pacific
Oceans caused by El Nino - produced
cloud cover changes.
Examining the structure of the global
cloud field one can see, a long line of bright, dense
clouds near the equator in a region known as the Intertropical Convergence Zone (ITCZ), more clearly evident
over the
tropical Atlantic and East Pacific
oceans.
«High
clouds over the western
tropical Pacific
Ocean seem to systematically decrease when sea surface temperatures are higher,» says Arthur Y. Hou of Goddard's Data Assimilation Office.
NASA's Terra satellite passed
over Tropical Cyclone Pam as it continued intensifying in the Southern Pacific
Ocean and captured an image of the storm's 20 nautical mile - wide,
cloud - filled eye.
Cloud amount and albedo decreased
over mid-latitude
oceans in both hemispheres (especially
over the North Atlantic),
over the southeast Indian
Ocean, and in a northwest - to - southeast line stretching across the central
tropical South Pacific.»