Sentences with phrase «latitudes than the global average»

The other reason is that temperature changes are more dramatic in high latitudes than the global average, especially high northern latitudes.

Not exact matches

... Polar amplification explains in part why Greenland Ice Sheet and the West Antarctic Ice Sheet appear to be highly sensitive to relatively small increases in CO2 concentration and global mean temperature... Polar amplification occurs if the magnitude of zonally averaged surface temperature change at high latitudes exceeds the globally averaged temperature change, in response to climate forcings and on time scales greater than the annual cycle.

This would actually not be true at sufficiently high latitudes in the winter hemisphere, except that some circulation in the upper atmosphere is driven by kinetic energy generated within the troposphere (small amount of energy involved) which, so far as I know, doesn't result in much of a global time average non-radiative energy flux above the tropopause, but it does have important regional effects, and the result is that the top of the stratosphere is warmer than the tropopause at all latitudes in all seasons so far as I know.

The second is because the global average temperature change is less than the change at high latitudes, where most glaciers are found (Section 9.3.2).

Warming at higher latitudes of the Northern hemisphere may be greater than the global average, as high as 4 to 7 °C between 2000 and 2100 (ACIA, 2004).

However, at the higher latitudes, many locations are likely to warm by more than the global average (see figure).

Projected changes for the 21st century over land and in mid and high latitudes will be larger than the projected change in the global average temperature, so again, past experience will provide little guidance for the future.

22 Land areas are projected to warm more than the oceans with the greatest warming at high latitudes Annual mean temperature change, 2071 to 2100 relative to 1990: Global Average in 2085 = 3.1 o C

As the Earth's surface cools further, cold conditions spread to lower latitudes but polar surface water and the deep ocean can not become much colder, and thus the benthic foraminifera record a temperature change smaller than the global average surface temperature change [43].

The temperatures are likely to increase more than global average in high latitudes, and less in low.