Sentences with phrase «when seasonal sea»

If polar bears have been around for few hundred thousand years they have experienced a variety of environmental changes in the Arctic, including periods when there was more sea ice than present as well as periods when seasonal sea ice was considerably less than at present.

Not exact matches

A big «hole» appeared in August in the ice pack in the Beaufort and Chukchi seas, north of Alaska, when thinner seasonal ice surrounded by thicker, older ice melted.

Unsurprisingly the biggest seasonal effects on sea level came during the fall and winter months, when El Niño events typically reach their peak.

Charney sensitivity refers to the climate sensitivity when fast - reacting feedbacks (Planck response is a given — also, water vapor, clouds,... I think sea ice, seasonal snow) occur but with other things (land - based ice sheets,... vegetation -LRB-?)-RRB-

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).

Arctic sea ice in the Bering Sea and to the north of Greenland actually declined during February, a time when sea ice usually expands toward its seasonal maximum in early to mid-Marsea ice in the Bering Sea and to the north of Greenland actually declined during February, a time when sea ice usually expands toward its seasonal maximum in early to mid-MarSea and to the north of Greenland actually declined during February, a time when sea ice usually expands toward its seasonal maximum in early to mid-Marsea ice usually expands toward its seasonal maximum in early to mid-March.

RE: 4th Error -RCB- Poses an objection to the non-scientific term catastrophic [NOTE: Scientific «consensus» is often being used & / or implied in standard climate - change discourse - Yet Consensus is a Political Term - NOT a Scientific Term]- HOWEVER - When Jim Hansen, the IPCC & Al Gore, et - al - go from predicting 450 — 500 ppm CO2 to 800 — 1000ppm by the end of the 21st century -LCB- said to the be highest atmospheric CO2 content in 20 — 30 Million YRS -RCB-; — & estimates for aver global temps by 21st century's end go from 2 * C to 6 * C to 10 * C; — & increased sea level estimates go from 10 - 20 cm to 50 - 60 cm to 1M — 2M -LCB- which would totally submerge the Maldives & partially so Bangladesh -RCB-; — predictions of the total melting of the Himalayan Ice caps by 2050, near total melting of Greenland's ice sheet & partial melting of Antarctica's ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to ME!

A big «hole» appeared in August in the ice pack in the Beaufort and Chukchi seas, north of Alaska, when thinner seasonal ice surrounded by thicker, older ice melted.