Sentences with phrase «on sea ice growth»

From the American Geophysical Union: WASHINGTON, DC — Humans may have been altering Arctic sea ice longer than previously thought, according to researchers studying the effects of air pollution on sea ice growth in the mid-20th Century.

Not exact matches

The growth of Antarctic sea ice in the winter exhibits more short - term ups and downs (seen as wiggles on the graphs charting the growth) than Arctic sea ice does, and so the Antarctic maximum takes longer to emerge from the noise.

«Because these plants are photosynthetic, it's not surprising to find that as the amount of sea ice cover declined, the amount of [photosynthesis] increased,» says biological oceanographer Kevin Arrigo of Stanford University's School of Earth Sciences, who led an effort to use the MODIS (Moderate Resolution Imaging Spectroradiometer) devices on NASA's Terra and Aqua satellites to determine changes in phytoplankton growth.

«We found that the Antarctic ice sheet had an uneven effect on the global sea level because its growth resulted in a complex interplay between gravitational and rotational effects and the deformations to Earth's crust caused by ice advance and retreat,» he says.

Eric Post, a Penn State University professor of biology, and Jeffrey Kerby, a Penn State graduate student, have linked the melting of Arctic sea ice with changes in the timing of plant growth on land, which in turn is associated with lower production of calves by caribou in the area.

Continuous annually layered strata provide the best kind of geological archive in which to search for a «golden spike» — these form on the floors of oxygen - starved seas and lakes, in glacial ice, and in corals and trees with seasonal growth rings

Freshwater flux has little effect on simulated Northern Hemisphere sea ice until the 7th decade of freshwater growth (Fig. 13d), but Southern Hemisphere sea ice is more sensitive, with substantial response in the 5th decade and large response in the 6th decade.

However, sea ice then grows very rapidly, since the growth rate for thin ice is much higher than for thick ice, which acts as a negative feedback on thickness during the growth season (Bitz and Roe, 2004; Notz, 2009).

Unless scientists have totally missed the mark with their understanding of the greenhouse effect, there is no doubt that continued expansion of our population, coupled with continued economic growth spurred on primarily by fossil fuels, is going to continue to warm the planet, melt ice, raise sea levels, etc. for a long time to come.

Re # 49 & # 82 The limitations on the growth of algae in the arctic varies with the season, the effect of sea - ice melting is not as certain as Harold would have us believe: http://www.agu.org/pubs/crossref/2005/2005JC002922.shtml http://www.nurp.noaa.gov/Spotlight/ArcticIce.htm

(The recent work of Huybers and Langmuir suggests that on ice - age time scales, the loading and unloading of the planet by ice growth / shrinkage and sea - level fall / rise may weakly organize the volcanoes, but not a lot, and with nothing interesting for our time.)

ScienceDaily (Oct. 3, 2008)-- Arctic sea ice extent during the 2008 melt season dropped to the second - lowest level since satellite measurements began in 1979, reaching the lowest point in its annual cycle of melt and growth on Sept. 14, according to researchers at the University of Colorado at Boulder's National Snow and Ice Data Center.&raqice extent during the 2008 melt season dropped to the second - lowest level since satellite measurements began in 1979, reaching the lowest point in its annual cycle of melt and growth on Sept. 14, according to researchers at the University of Colorado at Boulder's National Snow and Ice Data Center.&raqIce Data Center.»

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The maps suggests growth of parts of coastal East Antarctica, little change in the interior and ice mass loss in West Antarctica (basins 18 - 27 and 1) focused on the Amundsen Sea Coast region (basins 20 - 23).

When there is evidence for the growth of a large ice sheet on Antarctica or on Greenland or the growth of sea ice in the Arctic Ocean, we see evidence for a dramatic change in carbon dioxide levels over the last 20 million years.

Dozens of autonomous buoys deployed on the sea ice as far as 20 kilometers away from the vessel measured the growth and melting of sea ice to give indications of ocean heat flux on a larger scale.

Much of what we know and conclude about climate change is based on computer models, which have proven to be inaccurate over the years, and the Antarctic sea ice growth is another example of where the model went wrong.

For the decade of 2007 - 2017 (left), the research team predicts that there may be some growth of winter sea ice in the Arctic Ocean, particularly on the Atlantic side, where scientists have the most confidence in the model's ability.

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-- http://onlinelibrary.wiley.com/doi/10.1002/2015GL064541/abstract High - resolution measurements of ocean temperature and salinity in the Arctic Ocean's Canada Basin reveal the importance of the release of solar - derived stored ocean heat on sea - ice growth.

That growth of sea ice could have potentially been caused by the influx of freshwater as glaciers on land melted, or from changes in the winds that whip around the continent (changes that could be linked to warming or the loss of ozone high in the atmosphere).

This is often observed and commented on in relation to sea ice as «growth», or a surface increase.