AccuWeather
http://global-warming.accuweather.co...antarctic.html

David Christainsen

David wrote:
AccuWeather
http://global-warming.accuweather.co...antarctic.html

David Christainsen

Interesting on how he determines what qualifies as significant, or not.
Rather than look at absolutes, a relative qualification is used.

Arctic Trend
Significant. decrease of 3% per decade (200,000 km2, 77,220 mi2)

Antarctic Trend
Not significant. Increase of 0.8% per decade (about 100,000 km2, 38,610 mi2)

However, if you look at the absolutes in totality, there is a net
decrease of 100kkm2. In terms of global absolutes, does that qualify as
significant, or not? That is the /real/ question that needs to be
answered...

In article , Peter Franks
wrote:
David wrote:
AccuWeather
http://global-warming.accuweather.co...antarctic.html

David Christainsen

Interesting on how he determines what qualifies as significant, or not.
Rather than look at absolutes, a relative qualification is used.

Arctic Trend Significant. decrease of 3% per decade (200,000 km2, 77,220
mi2)

Antarctic Trend Not significant. Increase of 0.8% per decade (about
100,000 km2, 38,610 mi2)

Very tricky is it not?
Does global warming melt the sea ice in Summer OR does global warming cause
the glaciers to start moving seawards faster (mel****er lubricated) and
increase the sea ice?

--
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j

Rodney Blackall wrote:
In article , Peter Franks
wrote:
David wrote:
AccuWeather
http://global-warming.accuweather.co...antarctic.html

David Christainsen

Interesting on how he determines what qualifies as significant, or
not. Rather than look at absolutes, a relative qualification is
used.

Arctic Trend Significant. decrease of 3% per decade (200,000 km2,
77,220 mi2)

Antarctic Trend Not significant. Increase of 0.8% per decade (about
100,000 km2, 38,610 mi2)

Very tricky is it not?
Does global warming melt the sea ice in Summer OR does global warming
cause the glaciers to start moving seawards faster (mel****er
lubricated) and increase the sea ice?

"Or?" Why "or?"

In article ,
marcodbeast wrote:
Rodney Blackall wrote:

[Snip]

)

Very tricky is it not?
Does global warming melt the sea ice in Summer OR does global warming
cause the glaciers to start moving seawards faster (mel****er
lubricated) and increase the sea ice?

"Or?" Why "or?"

Big question is, do the melting glaciers thin and slide down into the sea
(increasing sea ice) OR, do they melt from the snout uphill reducing calving
(decreasing sea ice?

Probably varies from glacier to glacier depending upon the underlying
surface and gradient.

--
Rodney Blackall (retired meteorologist)(BSc, FRMetS, MRI)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j