Sentences with phrase «melting at high latitudes»

Summer extent is defined by snow melting at high latitudes.

Summer snow extent is defined by snow melting at high latitudes.

Not exact matches

During the last deglaciation, and likely also the three previous ones, the onset of warming at both high southern and northern latitudes preceded by several thousand years the first signals of significant sea level increase resulting from the melting of the northern ice sheets linked with the rapid warming at high northern latitudes (Petit et al., 1999; Shackleton, 2000; Pépin et al., 2001).

With higher precipitation, portions of this snow may not melt during the summer and so glacial ice can form at lower altitudes and more southerly latitudes, reducing the temperatures over land by increased albedo as noted above.

There just isn't much ice left, and what is left would be extremely difficult to melt, as most of it is located at high latitudes around the poles which are mostly dark 6 months out of the year with way below freezing temperatures.

Qualitative indicators like sea ice coverage, spring thaw dates, and melting permafrost provide strong additional evidence that trends have been positive at middle and high northern latitudes, while glacier retreat suggests warming aloft at lower latitudes.

Freshening of the ocean can result from numerous factors — the melting of ice, freshwater discharge from rivers, or increased precipitation at high latitudes.

AIUI, the assumption is that most of the first - year ice will melt, and much of it is located around the North Pole this year, so it will melt late (if at all) because of less insolation at high latitudes.

Despite the accompanying colder winters, getting melting going during those long hot summers is how we got rid of the ice sheets at high northern latitudes.

Every major ice age and warming cycle of the last 0.5 Ma put ice at high - latitudes and on high mountains and did not melt all of it.

This has obvious implications for our ability to predict events in the tropics, such as hurricanes and drought, and at high latitudes, such as sea ice and ice sheet melting (with sea level rise).

The increases used were sufficient to melt all sea ice at high latitudes, and amounted to 15 % on the global average.

Rapid ice drift is an important factor in regional ice conditions, especially redistribution of multiyear ice into areas with high melt rates at low latitudes.

In the case of the 100 kyr ice age cycles, that forcing is high northern latitude summer insolation driven by predictable changes in Earth's orbital and rotational parameters — aka, Milankovitch theory — which has the intial effect of melting glaciers, thereby reducing albedo at those latitudes.

The June 2008 NSIDC web site entry mentioned that it is difficult to melt first year ice at very high latitudes.

This is largely because melting sea ice changes the albedo of high latitude oceans, and to a lesser extent because an inversion prevails at high latitudes, especially in winter, whereas at low latitudes the heating is convectively mixed througout the troposphere.