Sentences with phrase «coastal sea ice»

Ice retreat depends strongly on the amount of solar heating of the surface ice and ocean; clear sky conditions early in the melt season can go a long ways towards helping ice retreat later in the season, so this is one of the variables that will be monitored closely (e.g., in the Barrow coastal sea ice break - up forecast, see below).

The loss of coastal sea ice is contributing to erosion and coastal flooding.

«Formation of coastal sea ice in North Pacific drives ocean circulation, climate: New understanding of changes in North Pacific ocean circulation over the past 1.2 million years could lead to better global climate models.»

So it would be nice for the climate models to have sufficient resolution to be able to predict the impact of changes in coastal sea ice.»

The formation of coastal sea ice, seen here in the Arctic Ocean, plays an important role in driving «overturning circulation» in the North Pacific Ocean.

Not exact matches

Oceanography postgraduates, for example, might study how coastal dynamics affect amphibious warfare, or how decreasing polar sea ice might influence global climate patterns.

Should Antarctica's ice sheets dissolve, sea levels would rise dramatically — enough to flood the world's great coastal megalopolises from New York to Shanghai and push millions of people inland.

The Government Accountability Office recently reported that 180 Alaskan coastal villages are threatened because of melting sea ice and permafrost.

Major challenges in the near future include assigning clearer attribution to sea ice as a primary driver of such dynamics, especially in terrestrial systems, and addressing pressures arising from human use of arctic coastal and near - shore areas as sea ice diminishes.

When most people think of the physical effects of climate change, they picture melting glaciers, shrinking sea ice or flooded coastal towns (SN: 4/16/16, p. 22).

In turn, sharing scientific and indigenous predictive capabilities is meant to improve coastal ice interpretation and prediction based on satellite imagery, assist communities refining public safety measures, and to add local sea ice to parameters used in assessing global climate change in the Arctic.

«One societally relevant implication is that more storminess probably means more erosion of Arctic coastlines, especially in tandem with declines in buffering sea ice cover and increases in thawing coastal permafrost,» concluded Dr. Vavrus.

Rising global temperatures, ice field and glacial melting and rising sea levels are among the climatic changes that could ultimately lead to the submergence of coastal areas that are home to 1.3 billion people today, according to the report, published online today by the journal Nature Climate Change.

The international team of co-authors, led by Peter Clark of Oregon State University, generated new scenarios for temperature rise, glacial melting, sea - level rise and coastal flooding based on state - of - the - art climate and ice sheet models.

An unprecedented analysis of North Pacific ocean circulation over the past 1.2 million years has found that sea ice formation in coastal regions is a key driver of deep ocean circulation, influencing climate on regional and global scales.

But the same process of sea ice formation and brine production along coastal shelves plays a critical role wherever it occurs.

If this greenhouse gas finds its way into the water, it can also become trapped in the sea ice that forms in these coastal waters.

Melting ice sheets could raise sea levels high enough to flood coastal areas around the globe by the end of the century, according to scientists gathering in Denmark today for a three - day climate - change conference.

Co-author Dr Ivan Haigh, lecturer in coastal oceanography at the University of Southampton and also based at NOCS, adds: «Historical observations show a rising sea level from about 1800 as sea water warmed up and melt water from glaciers and ice fields flowed into the oceans.

Cryosphere Systems: How do rapid changes in cryosphere (continental and ocean ice) systems evolve with the earth system, and contribute to sea - level rise and increased coastal vulnerability?

Few studies have described the distribution and behaviour of krill in the coastal waters of the Antarctic Peninsula in autumn [3], [4], when adult krill are believed to migrate inshore to overwinter under the shelter of sea ice [5], [6].

That is a major change in sea currents, warming, wildlife, coastal erosion, and much less solar energy being bounced back into space by ice that in not there.

Scientists are exploring undersea volcanoes, monitoring coastal erosion along hard - to - reach shorelines, and studying the movement of sea ice — all in real time.

[SLIDE 26] Coastal erosion — this is the village of Shishmaref, in the far far north of Alaska, where the coastal erosion is not so much from rising sea level but the melting sea ice has reduced the protection from waves.

Sea ice also provides crucial coastal protection in the Arctic, hunting grounds for local tribes, and habitats for creatures from polar bears to seals.

Climate change is also seen as the primary driver of melting ice and rise in sea level that threatens to submerge coastal cities and island nations.

If ice sheet disintegration reaches a point such that the dynamics and momentum of the process take over, at that point reducing greenhouse gases may be unable to prevent major ice sheet mass loss, sea level rise of many meters, and worldwide loss of coastal cities — a consequence that is irreversible for practical purposes.

The 74 Islands of the Whitsundays are the tops of all that remain of a coastal range, situated between Townsville and Mackay and some 900 km north of Brisbane, which was submerged when sea levels rose at the end of the ice age.

These are increasingly impactful, intersecting phenomena for densely populated coastal areas that are being developed at the same time that melting polar ice is causing sea levels to rise.

One of the biggest potential impacts on human affairs from sustained warming is coastal inundation as warming seas swell and fill with water flowing from melting ice sheets.

But experts see the «dangerous» question — how fast and far will seas rise — being more a function of non-linear puzzles like the herky - jerky acceleration from this process or from the uncorking that occurs when coastal blockades of ice give way.

These wildfires release soot into the atmosphere, which accelerates the rate of melting of glaciers, snow and ice it lands upon, which can lead to less reflectivity, meaning more of the sun's heat is absorbed, leading to more global warming, which leads to even more wildfires, not to mention greater sea level rise, which is already threatening coastal areas around the world.

«Without (sea) ice as a buffer, Alaska coastal villages are no longer protected from big storms and their giant waves.

My take is that the tug of war over what's causing today's telegenic heat waves, floods, tempests — and even Arctic sea - ice retreats — distracts from the high confidence scientists have in the long - term (but less sexy) picture: that more CO2 will lead to centuries of climate and coastal changes with big consequences for a growing human population (for better and worse in the short run, and likely mostly for the worse in the long run).

According to Mr. Gore the polar ice caps will collapse and melt and sea levels will rise 20 feet inundating the coastal cities making 100 million of us refugees.

The continuing warming and summertime retreats of sea ice around the North Pole are making life difficult for seal - hunting polar bears, eroding Inuit coastal villages and now, evidently, eroding Arctic defenses (although not weakening them, the Pentagon insists).

The sea - level estimates are consistent with those from delta18O curves and numerical ice sheet models, and imply a significant sensitivity of the WAIS and the coastal margins of the EAIS to orbital oscillations in insolation during the Mid-Pliocene period of relative global warmth.

Below you'll hear from scientists with significant concerns about keystone sections of the paper — on the evidence for «superstorms» in the last warm interval between ice ages, the Eemian, and on the pace at which seas could rise and the imminence of any substantial uptick in the rate of coastal inundation.

The IPCC said:» Ice extent data from Russian sources have recently been published (Polyakov et al., 2003), and cover essentially the entire 20th century for the Russian coastal seas (Kara, Laptev, East Siberian and Chukchi).

Glaceirs shrink, polar ice are melting, sea level is rising, coastal areas are erosion.

They are hoping that Canada and Denmark, which still partly governs Greenland, will develop a particularly aggressive conservation plan for a coastal region in the Arctic, stretching from northern Greenland west to Banks Island in Canada, that is likely to be a haven for bears should sea ice continue its summertime retreat elsewhere up north.

Alaska's coast is vulnerable to the effects of sea - ice retreat, thawing of coastal permafrost, and rising sea level, all of which are caused by warming, and combine to increase coastal erosion.

Alarmed at the pace of change to our Earth caused by human - induced climate change, including accelerating melting and loss of ice from Greenland, the Himalayas and Antarctica, acidification of the world's oceans due to rising CO2 concentrations, increasingly intense tropical cyclones, more damaging and intense drought and floods, including glacial lakes outburst loods, in many regions and higher levels of sea - level rise than estimated just a few years ago, risks changing the face of the planet and threatening coastal cities, low lying areas, mountainous regions and vulnerable countries the world over,

A large polar bear, stuck ashore, approached biologists studying coastal erosion related to sea - ice retreats.

The longer term risk is that rising temperatures will melt glaciers and polar ice caps, raising sea level and displacing coastal residents worldwide.

This causes increased erosion due to permafrost melt, increased flooding due to the warmer temperatures, and intensified storms because the sea ice forms later in the season and is unable to provide a natural barrier for our coastal communities.

This prediction was seized upon by global warming advocates as «proof» that the South Pole's unprecedented warming would melt sea ice and cause melting ice sheets to collapse, raising ocean levels and thus submerging worldwide coastal areas.

The rapid melting of Arctic ice would raise sea levels and render low - lying areas such as Miami and New Orleans more vulnerable to coastal flooding.

Rising sea levels Ice sheets, glaciers, & snow in Greenland & Antarctica are melting Coastal communities most affected Saltwater will contaminate coastal aquifers Homes may be washed away Estuaries & wetlands are nurseries for many animals.

Polar bears are dependent on sea ice as a platform for hunting seals, and as a pathway to coastal areas.