Sentences with phrase «ice trends»

Here's the global sea ice trend, combining what's going on up north and down south.

Also, a recent analysis of Antarctic sea ice trends for 1978 — 1996 by Watkins and Simmonds [2000] found significant increases in both Antarctic sea ice extent and ice area, similar to the results in this paper.

Southern Ocean SST and sea ice trends from HadSST, for the periods 1950 - 1978 (left) and 1979 - 2014 (right) and the zonal mean of both (middle) from Fan et al. (2014).

Global climate model projections for sea ice trends around Antarctica are at odds with what is being observed.

According to NSIDC sea ice trend data, from 1979 to 2006, the sea ice losses for the Arctic (purple trend line in graph below) were effectively counterbalanced by the sea ice gains in the Antarctic (green trend line), producing a conspicuously flat trend line in global sea ice.

«Global Sea ice trend by year only (barely) crosses 95 % significance when the first two months of satellite data is included for the entire record.»

These winds also push the ocean surface northwards too, which effectively brings warmer water to the surface and eventually counters the increasing sea ice trend after a few decades.

In fact, as I proposed in my overview of ice trends last October, the system up there may be becoming more like the sea ice around Antarctica, which flashes into existence each austral winter and then all disappears each southern summer.

This afternoon, I asked Marika Holland, a climate and ice modeler at the National Center for Atmospheric Research, to consider recent ice trends in light of her work with Jennifer E. Kay and Alexandra Jahn on a paper finding likely periods of ice recovery on the way to an ice - free Arctic in summer.

11:44 p.m. Postscript Cecilia Bitz of the University of Washington, one of the authors of «Future abrupt reductions in the summer Arctic sea ice,» an important 2006 paper projecting ice trends in this century, sent this reaction (edited very slightly for e-mail shorthand):

The goal, the scientists say, is to compare independent methods of gauging ice trends from factors including sea temperature, ice thickness and cycles of atmospheric pressure and winds around the Arctic.

Whether the Arctic's 21st - century journey ends with a tipping - point style crash or a whimper remains uncertain, but — even with the current recovery — it's hard to find a researcher probing Arctic ice trends who does not foresee open - water summers, and all that comes with them, in coming decades, as long as greenhouse gases keep accumulating in the atmosphere.

So I've revised the page on Greenland ice trends, adding the latest GRACE satellite measurements but also including long term trends going back to 1958.

Is the effects of Co2 global, or when taking into account the SH ice trends, is climate change warming restricted to the NH?

Most of the studies on the Arctic climate and ice trends cited to support the proposed listing assumed that the buildup of heat - trapping gases was probably contributing to the loss of sea ice, or that the continued buildup of these gases, left unchecked, could create ice - free Arctic summers later this century, and possibly in as little as three decades.

The National Snow and Ice Data Center chart on the right shows a rising sea ice trend over the available data from 1980.

Sea ice is biased low in the Canadian Arctic, which makes it difficult to assess the realism of long - term sea - ice trends there.

NSIDC has high confidence in sea ice trend statistics and the comparison of sea ice extent between years.

Scientists who study the warming seas and complicated climate and ice trends around Antarctica got a big jolt in recent days as yet another great fringing, floating ice shelf jutting from the Antarctic Peninsula began to disintegrate.

According to NSIDC sea ice trend data, -LSB-...]

Shown below is the declining sea ice trend for the month of January since satellite measurements began, in 1979.

The initiative was begun following a workshop on Arctic ice trends in March that was triggered by the «drastic and unexpected sea ice decline witnessed in 2007,» according to the report posted online.

Researchers are still investigating what forces, including global warming, are driving Antarctic sea ice trends.

Changes in atmospheric dynamics and winds are an important driver of regional sea - ice trends.

[Aug. 9, 8:04 p.m. Updated Joe Romm has predictably assailed my view of Arctic sea ice trends and their implications, straying into discussions of melting permafrost (which is an entirely different issue laden with its own questions — one being why the last big retreat of permafrost, in the Holocene's warmest stretch, didn't have a greenhouse - gas impact) and my refusal to proclaim a magically safe level of carbon dioxide (which I discuss here).

(I ran a preliminary version of the chart in a recent post on sea ice trends, but now it's been updated with the full month's readings of atmospheric pressures.)

Aug. 9, 8:00 p.m. Updated Here's an update on Arctic ice trends, starting with a fast - motion video portrait of sea ice conditions near the North Pole, provided by one of two automated cameras deployed there in April (keeping in mind that the camera is on ice that's drifted hundreds of miles since then):

andy, from your above - referenced article on sea - ice trends: «But another factor was probably involved, one with roots going back to about 1989.

I recommend you check out my recent piece on sea - ice trends in Science Times.

To get a sense of how the views of Arctic experts have coalesced around a rising human influence on the region's climate, you can scan previous stories from 2001, 2005, and 2007 on ice trends and possible causes.

[Andy Revkin — On Arctic ice trends, I have a post coming shortly on the latest update from the world's leading teams of sea ice experts, showing this year's retreat is unlikely to match last year's, while the long - term trend is still heading toward ever less summer ice.

We should have the Arctic sea ice trends up shortly for instance.