Sentences with phrase «seasonal ice decreases»

The shift to seasonal ice decreases the reflectivity of Earth's surface and allows more solar energy to be absorbed in the ice - ocean system.

Not exact matches

Climate change hasn't been kind to the Arctic Circle, as evidenced by the decrease of seasonal ice in the area and the encroachment of temperate species.

For example, few data are available for the polar winter, and it is not known whether aragonite - undersaturated areas decrease in size with the seasonal freezing of sea ice.

By these circles getting smaller, you see overall that the ice volume is shrinking, but you also see the seasonal differences with September values decreasing more than the winter values.»

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

In both the Arctic and the Antarctic «natural causes» (the seasons) are responsible for the seasonal decrease / increase in sea ice extent, which are, of course, much larger than the average annual change.

An overall warming in the 2 × CO2 experiment causes reduction of sea - ice extent by 15 %, with maximum decrease in summer and autumn, consistent with observed seasonal sea - ice changes.

When the flux is increased, the planet undergoes a decrease in surface albedo which is due to the melting of the permanent polar ice caps and the reduced seasonal snow cover.

Sea ice formation in the Amundsen and Bellingshausen seas has decreased by 10 % per decade and has also shortened in seasonal length [40].

Ocean salinity in the Arctic is of particular interest because it changes significantly with seasonal ice cover and is expected to decrease as the Greenland ice sheet melts and releases massive amounts of freshwater.

For example, reductions in seasonal sea ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.134

Recall the long - term military submarine record of decreasing seasonal Arctic sea ice thickness that was kept secret for over a decade?