Sentences with phrase «sea ice coverage during»

How about the Roman Warm Period era, when Arctic temperatures were 2 to 6 degrees C warmer than now and the Arctic had less than 50 % sea ice coverage 6 months of the year vs. just 1.5 months of < 50 % sea ice coverage during the post-1950s «Anthropocene»?

If you'll recall from my previous post, polar bears seem to have barely survived the extensive sea ice coverage during the Last Glacial Maximum — in other words, too much ice (even over the short term) is their biggest threat.

Not exact matches

During the so - called Holocene Climate Optimum, from approximately 8000 to 5000 years ago, when the temperatures were somewhat warmer than today, there was significantly less sea ice in the Arctic Ocean, probably less than 50 % of the summer 2007 coverage, which is absolutely lowest on record.

Progress in understanding this connection has converged on two key factors: (1) the variability of autumn snow cover in Eurasia, and (2) the variability of sea ice coverage in the Barents - Kara Sea during late fall and early wintsea ice coverage in the Barents - Kara Sea during late fall and early wintSea during late fall and early winter.

BBC News reports that data from Europe's Cryosat spacecraft shows that Arctic sea ice coverage was nearly 9,000 cubic kilometers (2,100 cubic miles) by the end of this year's melting season, up from about 6,000 cubic kilometers (1,400 cubic miles) during the same time last year.

Negative delta C - 13 (as) values in glacial AABW were likely caused by poor ventilation during formation, probably associated with extensive sea ice coverage.

For the Eastern Fraim Strait, the Southeast Barents Sea, and North Iceland, there was considerably less sea ice coverage (as assessed in months - per - year) during the late 1600s to early 1700s than there has been during the last few decadSea, and North Iceland, there was considerably less sea ice coverage (as assessed in months - per - year) during the late 1600s to early 1700s than there has been during the last few decadsea ice coverage (as assessed in months - per - year) during the late 1600s to early 1700s than there has been during the last few decades.

(2) Jeff Id's analysis of sea ice data showed no increase of ice coverage during the past 30 years.

During the summertime sea ice melt, after the surface snow has melted off, the albedo of melting ice is complicated by the presence of melt ponds and depends on the areal coverage and depth distribution of the melt ponds.