Not exact matches
Hoerling and Kumar (2003) attributed the drought to
changes in atmospheric circulation associated with warming of the western tropical Pacific and Indian oceans, while McCabe et al. (2004) have produced evidence suggesting that the confluence of both Pacific decadal and Atlantic multi-decadal fluctuations is
involved.
So was there a climate shift after the turn of the century
involving changes in ocean and
atmospheric circulation involving cloud
changes?
Various mechanisms,
involving changes in ocean
circulation,
changes in atmospheric concentrations of greenhouse gases or haze particles, and
changes in snow and ice cover, have been invoked to explain these sudden regional and global transitions.
I will now analyse how the system could work and show that composition
changes not
involving changes in mass only affect
atmospheric volume and
circulation patterns and not surface temperature.
Francis, who wasn't
involved with either study, is one of the main proponents of an idea that by altering how much heat the ocean lets out, sea ice melt and Arctic warming can also
change atmospheric circulation patterns,
in particular by making the jet stream form larger peaks, or highs, and troughs, or lows.
The Arctic climate affects the world:
Changes in sea ice affect ocean
circulation, which,
in turn, affects
atmospheric circulation that then impacts the globe, said Bruce Forbes, a geographer at the Arctic Center at the University of Lapland
in Finland, who was not
involved in the study.
It is not clear that the world is warming post the 1998/2001 climate shift — that
involved a climatically significant step
change in albedo as a response to abrupt
changes in ocean and
atmospheric circulation.
The mechanism
involves cloud
changes in these major internally driven reorganizations
atmospheric and ocean
circulation.
How
atmospheric and ocean
circulation responds to various
changes in forcing would need to be detailed if someone wanted to «prove» anthropogenic forcing is
involved other than a minor increase
in the average surface temperature.
They
involve changes in ocean and
atmospheric circulation, ice, cloud, dust and biology.