Sentences with phrase «anomalies over the sea ice»

To a large extent the probability forecasts in Figure 11 resemble the surface air temperature anomaly of the last two months in Figure 7 in the high latitudes, illustrating the persistence of weak climate anomalies over the sea ice and ocean covered regions throughout the summer months.

Not exact matches

iheartheidicullen @ 162: Sorry if my tone was intemperate, but really the SH and NH sea ice trends have been analysed at length online by Tamino and others, over the last year or two, with the clear conclusion that the SH anomaly trend is small (the anomaly at the maximum last year was about 1.5 % of the mean annual maximum, if I remember correctly) and not statistically significant (at the 95 % level, I think), whereas the NH trend is large (tens of percent), long - lived, and statistically very significant indeed.

Conversely, low sea level pressure anomalies over the Beaufort Sea and Canada Basin keep the Arctic Ocean pack ice up against the western entransea level pressure anomalies over the Beaufort Sea and Canada Basin keep the Arctic Ocean pack ice up against the western entranSea and Canada Basin keep the Arctic Ocean pack ice up against the western entrance.

Sea ice anomalies at the springtime maximum probably have more to do with what is happening to weather over subarctic seas rather than what is happening to preconditioning of sea ice in the Arctic Basin propSea ice anomalies at the springtime maximum probably have more to do with what is happening to weather over subarctic seas rather than what is happening to preconditioning of sea ice in the Arctic Basin propsea ice in the Arctic Basin proper.

This model has been proven skillful in reproducing the monthly arctic (and Antarctic) sea ice extent anomalies over the last 30 years, as well as the observed long - term downward trend.

Summer atmospheric circulation anomalies over the Arctic Ocean and their influences on September sea ice extent: A cautionary tale.

To name just a few of the climate impacts of the annular modes: the NAM is associated with large anomalies in surface temperatures and precipitation across North American and Eurasia, in the distribution of sea - ice throughout the Arctic, in sea - surface temperatures over the North Atlantic, and in the spatial distribution ozone in the lower stratosphere.

The September ice area is predicted to be comparable to 2009 based on winter (Jan - Feb - Mar) sea level pressure anomalies over the Kara and Laptev Seas.

Pokrovsky predicts a further acceleration of melting of the thin ice and in general greater ice loss compared to his June prediction; this change is based on the increase in the sea surface temperature (SST) anomalies in the North Atlantic and the presence of hot air masses over Siberia and the Russian Arctic.

While the ensemble forecast indicates an absence of significant atmospheric circulation anomalies over the western Arctic, high pressure features over the Barents sea appear to be conducive to greater ice extent reductions along the Eurasian side.

See also the Sea Surface Temperature Anomalies, Ice and Snow Cover, 1 year animation, from Environment Canada, for snow depth records over the last 365 days that include Hudson Bay.

In contrast, SLP has been higher over the Kara sector, which may have contributed to the large current negative anomalies in sea ice concentration in that region of the Arctic.

On the other hand, over the course of the entire year, the last 4 years of ever - larger «excess» sea ice anomalies around Antarctic are reflecting 1.7 times as much energy from the planet as is absorbed up north.

Trends in near surface winds and geopotential heights over the high - latitude South Pacific are consistent with a role for atmospheric forcing of the sea ice and air temperature anomalies.

In summary, we showed that the spring temperature anomalies over the WAIS are significantly correlated with sea ice in the ABS, with temperature anomalies at Faraday / Vernadsky, with geopotential height anomalies in the South Pacific, and with SSTs in the southern tropical western Pacific (Table 4).

However, in the polar sea ice zones, GISTEMP extrapolates the land surface air temperature anomalies over the oceans to a radial distance of 1,200 km (Hansen et al. 2010).

This report discusses our current understanding of the mechanisms that link declines in Arctic sea ice cover, loss of high - latitude snow cover, changes in Arctic - region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps in our understanding, and observational and / or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature / precipitation anomalies and extreme weather events over northern continents.

Behavior of the sea ice over the past winter and the spring and the large positive temperature anomalies in the Arctic (as high as 20 degrees C over large regions in the past winter) suggest that an extent near that of the 2012 minimum may occur again if there is large export of sea ice out to the Atlantic Ocean via the Fram Strait.

Top row (a — c): Regressions of the leading detrended Z850 PC timeseries with anomalies in continental Antarctic temperature from M10 (colors on Antarctic land), sea ice concentration (colors over ocean; (note the sea ice colorscale is reversed with respect to the temperature colorscale), and geopotential height (contours).

The «tale of the tape» long term sea ice extent anomaly graph over at Cryosphere Today also continues to drop like a stone:

Re ice loss — for sea ice loss, you'd have to take a time integral over the year of the latent heat of melting * ice mass anomaly to find an annual average heat (enthalpy in this case) anomaly.

In July, the Arctic Dipole Anomaly (DA) pattern that was dominant in June (which promotes clear skies, warm air temperatures, and winds that push ice away from coastal areas and encourages melt) was replaced by low sea level pressure (SLP) over the Arctic Ocean, leading to ice divergence (ice extent «spreading out») and cooler temperatures.

Looking at the year in terms of monthly averages, the largest anomalies in sea ice tend to occur during the winter months, in contrast to values over the whole of the Arctic, where winter ice is largely land - locked and the largest anomalies tend to occur in summer.