Sentences with phrase «ice formed during»

Ice formed during the Ice Age is being given back to the sea in our naturally warmer geological period, and man is making matters worse by pouring so much carbon dioxide into the atmosphere that more heat is being trapped within it.

For example, in the southern Weddell Sea so much sea ice forms during the autumn and winter months that the amount of salt released in the process turns the water around and below the 450,000 km2 Filchner - Ronne Ice Shelf into a massive protective sheath.

(Many readers may remember this type of ice forming during the Deepwater Horizon spill last year and blocking efforts to cap the well.)

Not exact matches

Thawing caused ice crystals to form and prevented meiosis, the cellular process during which an egg's chromosomes split up from 46 to 23, to be united later with 23 chromosomes from a sperm cell.

A prime spot to go looking for ancient epigenetic signals is in permafrost that formed during the last ice age.

Intermittent phases of boiling, similar to what happened when Vinalia Faculae formed, may have occurred during this process, littering the surface with ice and salt particles that formed the Cerealia bright spot.

But previously it has proved impossible to preserve whole organs, because ice crystals form in the cells during freezing, literally tearing them apart.

Abbott, from the Lamont - Doherty Earth Observatory of Columbia University, and her colleagues studied layers of Arctic ice cores dating to that time and found tiny carbon spheres, which they believe formed during the heat and pressure of a cosmic impact.

Since they began forming 12,000 years ago in glacial hollows carved out during the last ice age, peat bogs have been squirrelling away carbon that would otherwise leak into the atmosphere.

Ice crystals that form during cooling and rewarming can break, puncturing cells and bursting blood vessels.

To assess whether liquid water flowed over the region during the heat spells Mars experiences every 50,000 years, an onboard microscope will examine cracks in the subsurface ice that should form during cold times.

This extremely high metallicity would indicate WASP - 18b might have accumulated greater amounts of solid ices during its formation than Jupiter, suggesting it may not have formed the way other hot Jupiters did.

The land bridge forms during ice ages, when much of the water on the planet becomes part of growing continental glaciers, making the sea level much lower than it is today,» explained Shapiro.

The upper part of the modern Arctic Ocean is flushed by North Atlantic currents while the Arctic's deep basins are flushed by salty currents formed during sea ice formation at the surface.

As Weir points out, it likely owes its survival as a species on being geographically isolated from its parental species at some point during a past ice age when rainforest coverage contracted, and wide rivers formed natural barriers.

An early study suggested that these pingos formed on land during the glacial period, and are therefore relics from the ice age, just like the Arctic subsea permafrost.

In the second process, droplets shrink during evaporation and then freeze through the inside - out contact freezing mechanism, forming ice crystals any place in the cloud.

This new finding is important because it's one of the first exoplanets in this mass range that lies beyond the «snow line» — the distance during formation of a planetary system beyond which ice can form from water, ammonia, and methane.

PNNL found dust particle surface reshaped during atmospheric passage, altering ice - forming ability

This strategy is used to identify ice bands and to constrain which ices form early during cloud formation, which form later in the prestellar core and which require protostellar heat and / or UV radiation to form.

Ice sheets that form during glaciations cause erosion of the land beneath them.

During the history of Earth, there have been a series of periods in which a significant portion of the hydrosphere was locked up in the form of glacial ice.

During glaciation, water was taken from the oceans to form the ice at high latitudes, thus global sea level drops by about 120 meters, exposing the continental shelves and forming land - bridges between land - masses for animals to migrate.

With higher precipitation, portions of this snow may not melt during the summer and so glacial ice can form at lower altitudes and more southerly latitudes, reducing the temperatures over land by increased albedo as noted above.

Supraglacial (surface) water on a glacier is formed by the ice melting during the summer.

The uplift occurring here is due to present - day melting of glaciers and ice fields formed during the Little Ice Age glacial advance that occurred between 1550 A.D. and 1850 A.D.&raqice fields formed during the Little Ice Age glacial advance that occurred between 1550 A.D. and 1850 A.D.&raqIce Age glacial advance that occurred between 1550 A.D. and 1850 A.D.»

«The ice crystals that form during freezing disrupt the structure of the plant tissue, making the anthocyanins more available,» according to South Dakota State University graduate Marin Plumb.

Mud balls can form between toes and pads during wet weather, and snow and ice balls will form in winter weather.

During the winter months, the upper Tugela Falls can freeze, forming ice pillars — a sight not often seen in sunny South Africa!

It was formed as a limestone cave system during the last ice age when sea levels were much lower.

The Great Blue Hole shown is one of the top attractions in Belize and is a mecca for those wanting to dive among its giant stalactites and stalagmites, which were formed during the last Ice Age.

During aphelion water ice clouds form in the atmosphere, interacting with the dust particles and affecting the temperature of the planet.

The Great Blue Hole was formed sometime during one of the ice ages that covered the North American continent several million years ago.

The limestone walls of the hole were formed during the last Ice Age when water levels in the area were much lower.

The volcanoes and glaciers play a role in forming Kamchatka's climate, and hot springs have kept alive dozens of species decimated during the last ice - age.

The park covers 140 km ², of which 16 km ² is granite islands, formed by upwellings of hot magma during the Tertiary - Cretaceous period some 65 million years ago, then later smoothed by glacial ice and wave action of the sea.

The hole, which was formed thousands of years ago during the last ice age, is a UNESCO World Heritage Site and divers can enjoy it at their own pace, or join one of the many dive excursions that take in the Great Blue Hole.

It was originally formed many years ago during the Ice Age.

It was formed during the ice age when the prevailing winds transported the vast quantities of sand from New South Wales and deposited it along the coast of Queensland, forming the island as we know it today.

Like other sea - holes or «vertical caves,» the Great Blue Hole in Belize's Lighthouse Reef actually formed on dry land, during a past ice age when the sea level was a lot lower than it is today.

... Sea ice, especially during the sunlit seasons, serves as habitat for an ice - specific food web (sympagic foodweb)[1] that includes bacteria, viruses, unicellular algae, which often form chains and filaments, and invertebrates sufficiently small to traverse the brine network.

Sea ice is critical for polar marine ecosystems in at least two important ways: (1) it provides a habitat for photosynthetic algae and nursery ground for invertebrates and fish during times when the water column does not support phytoplankton growth; and (2) as the ice melts, releasing organisms into the surface water [3], a shallow mixed layer forms which fosters large ice - edge blooms important to the overall productivity of polar seas.

Multi year ice (ice that has survived through a few or more summer and is thick, is much harder to melt than new ice, formed during a single winter.

If I may add one more speculative question: are the portions of glacial sheets formed during periods of high ice flux less stable, and more prone to calving, than those formed during slow flux?

Typically, during a positive phase of the AO, surface winds push ice away from the shores of Siberia, and any young, thin ice that is subsequently formed is prone to melting in summer.

But in polar regions [within arctic circle] one is still going to have 6 months per year of darkness and therefore will still have freezing weather, though polar ice may not form during the winter.

According to tribal legend, a godlike creator in the form of a raven turned one of every ten black bears white to remind humankind how clean the Earth was during the Ice Age.

Under the Larsen B, however, the researchers found no algae remains in the sediments, indicating that this shelf had remained intact since it formed during the last full - fledged ice age, more than 10,000 years ago, until its demise last month.

«We can see that the red layers of the ocean floor is formed during the Ice Age's warm periods, and that proves that every time the temperature rose, water from the melting ice was poured into the ocean», says RasmussIce Age's warm periods, and that proves that every time the temperature rose, water from the melting ice was poured into the ocean», says Rasmussice was poured into the ocean», says Rasmussen.

During winters when this effect is pronounced, more cold air gets trapped in the stratosphere above the South Pole, and as a result, more ice crystals form in the atmosphere.