Sentences with phrase «low sea ice conditions»

At 3.42 million square kilometres, it may still sound large, but this small extent of Arctic sea ice could have profound long - term consequences, and it follows a long trend of low sea ice conditions.

The study compared weather patterns during low sea ice conditions as seen in recent years to weather patterns during high sea ice conditions typical of the late 1970s.

Not exact matches

This new group of scientists find some weather disturbances were not from the El Nino, La Nina cycle, but apparently regulated by conditions in the Arctic — things like low sea ice, low or shorter season snow cover, and even «sudden stratospheric warming».

Does it mean the first time the summer sea ice goes beneath this threshold or does it imply a probability of encountering low - ice conditions over a period of time?

«Conversely, above normal ice cover was associated with La Nina conditions which are accompanied by the Aleutian low moving westward of normal allowing higher pressure and colder conditions to move over the Bering Sea.

It is also possible for cold climates to increase chemical weathering in some ways, by lowering sea level to expose more land to erosion (though I'd guess this can also increase oxydation of C in sediments) and by supplying more sediments via glacial erosion for chemical weathering (of course, those sediments must make it to warmer conditions to make the process effective — downhill and downstream, or perhaps via pulsed ice ages -LRB-?)-RRB-.

As expected from my 2002 paper, the low A.O. conditions of late have sequestered quite a bit of sea ice the Arctic, which should foster a more moderate retreat of sea ice extent this coming spring, summer and fall.

Arctic sea ice shrank to its lowest level in 38 years last month, setting a record low for the month of May and setting up conditions for what could become the smallest Arctic ice extent in history, according to National Snow and Ice Data Center data released Tuesdice shrank to its lowest level in 38 years last month, setting a record low for the month of May and setting up conditions for what could become the smallest Arctic ice extent in history, according to National Snow and Ice Data Center data released Tuesdice extent in history, according to National Snow and Ice Data Center data released TuesdIce Data Center data released Tuesday.

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Yet, Polar Bears International («Save Our Sea Ice»)-- who were surely in and around Churchill in 2010 and 2006 watching polar bears — just posted an alarming statement about local conditions, implying that slow freeze - up of Hudson Bay this year is a reflection of the fact that «sea ice is at a record low across the Arctic.&raqSea Ice»)-- who were surely in and around Churchill in 2010 and 2006 watching polar bears — just posted an alarming statement about local conditions, implying that slow freeze - up of Hudson Bay this year is a reflection of the fact that «sea ice is at a record low across the Arctic.&raqIce»)-- who were surely in and around Churchill in 2010 and 2006 watching polar bears — just posted an alarming statement about local conditions, implying that slow freeze - up of Hudson Bay this year is a reflection of the fact that «sea ice is at a record low across the Arctic.&raqsea ice is at a record low across the Arctic.&raqice is at a record low across the Arctic.»

At times of low solar irradiance the amounts of sea ice in the Nordic Sea increase, this ice is then driven south due to the atmospheric circulation (also due to weak solar conditions) creating a more northerly air flow in this arsea ice in the Nordic Sea increase, this ice is then driven south due to the atmospheric circulation (also due to weak solar conditions) creating a more northerly air flow in this arSea increase, this ice is then driven south due to the atmospheric circulation (also due to weak solar conditions) creating a more northerly air flow in this area.

To detect this condition, the rate of change of the NSIDC NH sea - ice extent was taken and a 3 - sigma gaussian low - pass filter applied.

Sea - ice age estimates in spring, showing conditions during the last week of April in 2009 (upper image) and 2010 (lower image).

Further investigation of ice thickness and free ice drift conditions, in addition to persistence of SLP maxima, will provide further insight as to whether convergence (divergence) of sea ice associated with SLP highs (lows) will give rise to increased ice retreat in the Arctic and the Beaufort Sea region in particulsea ice associated with SLP highs (lows) will give rise to increased ice retreat in the Arctic and the Beaufort Sea region in particulSea region in particular.

This is substantially lower than the earlier estimates, reflecting both lower than average sea ice extent used as initial conditions this summer and a persistent downward trend in sea ice extent over the past decade (and longer).

Whereas the simulations for March and June are all quite similar, the September sea ice concentration of the central Arctic Ocean is significantly lower under conditions with a closed Bering Strait and half - flooded shelf seas (Fig. 8, Supplementary Fig. 9).

The thinner seasonal ice conditions helped reduce the amount of ice, leading to the 2007 record low amount of total Arctic sea ice.

I see a whole string of summers with very negative NAO conditions from 2015 - 2024, so I think we will see some very low September sea ice minima again.

The other simulations were run under approximated pre-industrial conditions: lower greenhouse gas concentrations, cooler sea surface temperatures, and the largest sea ice extent available from the satellite era (1986/1987).

Sometime before 2020 certainly, but based on the 5 year rebuilding time between 2007 and 2012, we might see a new lower low in Arctic sea ice around 2017, as the spiral continues down to an ice free condition this century.

Unusually warm conditions and record low daily sea ice extent levels continued through the end of the year.

Then things took a turn for the worse, and sea ice was at record or near - record low conditions for most of the summer.

Now we have poor hunting conditions in the Bering Strait touted as evidence that «walrus migration patterns have changed» with the implication that this is because ``... the past eight years have had the eight lowest amounts of summer sea ice on record» due to man - made global warming.

That a simple warming trend throughout the 20th century does not characterise arctic conditions is also confirmed by records of ice cover in the four seas that lie north of Siberia (Kara, Laptev, East Siberian and Chukchi); these show clearly that ice variability in these seas is dominated by a low frequency oscillation of frequency 60 ‐ 80 years that «places a strong limitation on our ability to resolve long term trends».

Summer meteorological current conditions and projections this summer (see Figures 9 - 11) do not favor extreme mid to late summer sea ice loss in 2016, as occurred in 2007 and 2012, despite low sea ice extents at the beginning of summer.

Differences between surface winds and SLP, and vortex splitting and sea ice extent composites exhibit conditions that are unfavorable to export through Fram Strait in May, 2009; southwesterly versus southeasterly winds in the Beaufort Sea region may also limit free ice drift conditions and inhibit the acceleration evident in years exhibiting record lows in sea ice extesea ice extent composites exhibit conditions that are unfavorable to export through Fram Strait in May, 2009; southwesterly versus southeasterly winds in the Beaufort Sea region may also limit free ice drift conditions and inhibit the acceleration evident in years exhibiting record lows in sea ice exteSea region may also limit free ice drift conditions and inhibit the acceleration evident in years exhibiting record lows in sea ice extesea ice extent.

The last three years have all seen record - low conditions; in 2016, there were seven months of record - low sea ice.

Albedo should increase in response to very low solar conditions which should result in an increase in major volcanic activity, increase in global cloud coverage and sea ice / snow coverage.

Ice loss during the second half of August was in fact the slowest observed during the last decade, resulting in the observed, unexceptional September sea ice extent being recorded despite the extremely low ice conditions present at the start of the summIce loss during the second half of August was in fact the slowest observed during the last decade, resulting in the observed, unexceptional September sea ice extent being recorded despite the extremely low ice conditions present at the start of the summice extent being recorded despite the extremely low ice conditions present at the start of the summice conditions present at the start of the summer.

«When IP25 [proxy for sea ice] is absent, lack or very low abundance of phytoplankton biomarkers reflects permanent sea - ice coverage, whereas elevated abundance of phytoplankton markers reflects ice - free conditions.

A series of extremely low September sea ice conditions during the last decade, including the unprecedented declines in 2007 and 2012, suggests a recent acceleration in the long - term Arctic sea ice loss (e.g., Stroeve et al., 2012b).

Background mixing in the deep ocean is related to internal wave energy, which in ice - covered seas has been observed to be lower than in ice - free oceans, and to change with time and bathymetric conditions [Levine et al., 1985 and 1987; Halle and Pinkel, 2003; Pinkel, 2005].

Such weather patterns, which can feature relatively mild conditions in the Arctic at the same time dangerously cold conditions exist in vast parts of the lower 48, may be tied to the rapid warming and loss of sea ice in the Arctic due, in part, to manmade climate change.

Many conditions are unprecedented, including the record low extent of Arctic sea ice.

Current sea ice extent and meteorological conditions suggest a record low is unlikely, as surface temperature over the central Arctic has been near normal in the last two months and forecasts of atmospheric temperatures for the next few weeks indicate average surface temperatures.

Thus, while there has been persistence of low summer ice conditions the last few years, model results suggest we can not rule out short periods of increased sea ice cover, but that this in no way contradicts the long - term sea ice loss.

While several August Outlooks did not change from the July Outlook, forecasts using statistical techniques together with end of July sea ice conditions tended to show slightly lower estimates for the September minimum compared to the previous outlook (e.g. Meier et al.; Beitsch et al.; Lukovich et al.; Randles).