Sentences with phrase «sea ice record»

There are no accurate sea ice records that cover the «past several decades».

The passive microwave sea ice record dates back to 1979, one of the longest environmental data sets we know of.

2018 and 2017 are the two lowest winter time Arctic sea ice records observed.

While a 14 % loss is not an insignificant amount, it's smaller than some of the changes in Antarctic sea ice recorded during the middle of the 20th century, as estimated from whaling ship logbooks, the paper says.

Still, the extent of sea ice recorded in November was well shy of the median extent observed over the past quarter century, as the image from Nov. 14 (above, right) shows.

Climate News Network: The Arctic ice cap has just passed its summer minimum — and it's the sixth lowest measure of sea ice recorded since 1978, according to scientists at the US space agency NASA.

It was largely positive during the winter of 2007 - 8, which followed the previous sea ice record low, and then turned record negative during the winter of 2009 - 10, during which the infamous «Snowmageddon» blizzard occurred along the East Coast.

It was largely positive during the winter of 2007 - 8, which followed the previous sea ice record low, and then turned record negative during the winter of 2009 - 10, during which the infamous «Snowmageddon» blizzard occurred along the East Coast.

A comparison of Danish Sea ice records from August 1937 with satellite pictures from August 2013, illustrate very similar losses of Arctic ice.

I wasn't surprised to see that they failed to mention the seemingly never - ending winter that has been causing chaos in parts of some South American countries, nor have they once mentioned the Antarctic sea ice record since it was announced.

Laidre's team used the Arctic sea ice record derived from microwave measurements taken by NASA and Department of Defense satellites.

The forecast by researchers at CU - Boulder's Colorado Center for Astrodynamics Research is based on satellite data and temperature records and indicates there is a 59 percent chance the annual minimum sea ice record will be broken this fall for the third time in five years.

A natural sea ice record would not ever stun a scientist who understood the natural cycles.

Most NASA stories about sea ice records tend to start with the year 1979, when consistent observations started to be collected regularly by satellites.

Arctic About Blog Putting the Arctic sea ice record straight Frequency about 1 post per month.

... We've used a range of new data sources to fill gaps and extend the Arctic sea ice record back to 1850.

Tagged adaptation, declining sea ice, early breakup, evolution, historical sea ice record, indivdual variation, late freeze - up, natural selection, NSIDC, polar bear, resilience, sea ice minimum, sea ice variability, Stirling, Stroeve, survival, western hudson bay

Several researchers have pointed to various other indicators as evidence of «global warming», e.g., Arctic sea ice records, ocean heat content measurements, or animal and plant migration patterns.However, all of these indicators are either too short to compare recent temperatures to temperatures before the 1950s, or else are affected by non-climatic biases.

The sea ice records are predominantly for the southern hemisphere summer — from November to March — because that's when the explorers tended to sail to the Antarctic, taking advantage of the seasonal lows in sea ice extent.

Anecdotally, this seems to be confirmed by the fact that many of the early Arctic explorers (early 20th century, 19th century and earlier) were able to reach areas that they probably couldn't have reached in 1979, when the sea ice records began.

So, if the sea ice records had actually started earlier, they probably would have shown an increasing trend.

These suggest that the sea ice records coincidentally began just after several decades of cooling in the Arctic had ended!

«The sea ice record is so short that it's difficult to use statistics alone to build confidence in our predictions,» Dr Yeager says.

Indeed the last five years include the five lowest sea ice extents since records began in 1979, and much of that trend has been caused by global warming, says NASA Cryosphere Program manager Tom Wagner in his video interpretation of the 2011 sea ice record (43 MB MPEG - 4).

To be sure, it is hard to know exactly what proportion of incompetence and dishonesty one should ascribe to Lawrence Solomon in his discussion of the sea ice record.

I don't see this in the sea ice records that date that far back (i.e. Chapman and Walsh), but that's in large part because the ice cover has observational gaps and has been filled in with climatology.