Sentences with phrase «ice forms early»

The satellite readings show that as sea ice forms early in the season, wind blowing off the cold Antarctic ice cap pushes it offshore and northward.

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.

Not exact matches

In order to understand these processes, one of Webb's Director's Discretionary Early Release Science projects will examine a nearby star - forming region to determine which ices are present where.

That's because ice in the early solar system is thought to have formed beyond a «snow line» lying somewhere between Mars and Jupiter.

Satellite data show that, between 1979 and 2013, the summer ice - free season expanded by an average of 5 to 10 weeks in 12 Arctic regions, with sea ice forming later in the fall and melting earlier in the spring.

Prather said her team's research is going to investigate the earliest stages of this ice - forming process, trying to distinguish the different effects that different microbes and bacteria can have when they infiltrate a cloud.

The outdoor tests did not simulate Martian temperature and pressure, but calculations indicate the dry ice would act similarly in early Martian spring where the linear gullies form.

The pack ice is melting earlier and forming later.

«The earlier the planets formed,» says Desch, «the further away from the star they needed to have formed to have so much ice.»

«The main difference between my model and others is that I suggest that the ice cap formed early, when Pluto was still spinning quickly, and that the basin formed later and not from an impact,» said Hamilton, who is lead author of the paper.

Earlier this summer the Jakobshavn shed a 2.7 - square - mile chunk of ice — about twice the size of New York's Central Park — after a mild winter that saw no ice form in the surrounding bay.

«In recent years Arctic pack ice has formed progressively later, melted earlier, and lost much of its older and thicker multi-year component,» says Anthony Fischbach of the US Geological Survey (USGS) and one of the research team.

These models accurately predict how much water was locked up in the form of ice early in the history of our solar system, billions of years ago, before making its way to Earth.

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.

This April was the lakes» iciest on record after a near - record winter, and the season has been notable for how early ice formed and how long it's lingered.

Research by University of Maryland astronomy professor Douglas Hamilton and New Horizons colleagues, published in the journal Nature, shows that this nitrogen ice cap could have formed early on, when Pluto was still spinning quickly, and did not necessarily require an impact basin.

The Antarctic Ice Sheet first formed as a small ice cap (maybe several) in the early Oligocene, but retreating and advancing many times until the Pliocene, when it came to occupy almost all of AntarctiIce Sheet first formed as a small ice cap (maybe several) in the early Oligocene, but retreating and advancing many times until the Pliocene, when it came to occupy almost all of Antarctiice cap (maybe several) in the early Oligocene, but retreating and advancing many times until the Pliocene, when it came to occupy almost all of Antarctica.

This warm phase had begun in the Cretaceous period, peaked in the early Eocene, and continued to the end of the Eocene, when global temperatures dropped and ice sheets formed over the Antarctic.

Both objects formed among the rocky and icy protoplanets beyond the Solar System's «ice line» now located around 2.7 AUs, but the early development of Jupiter apparently prevented such large protoplanets between the gas giant and planet Mars from agglomerating into even bigger planetary bodies, by sweeping many into pulverizing collisions as well as slinging them into the Sun or Oort Cloud, or even beyond Sol's gravitational reach altogether.

Astronomers believe that comets, which are «dirty snowballs» composed of ice, rock, and dust, are the remnants of the early Solar System and can tell us a great deal about how the planets formed.

The New Orleans painting demonstrates he had this ambition on his mind much earlier when he formed the M of the mountain and the H of the ice hole effectively making a self - portrait of the landscape!

[UPDATE, 5/20: Natalie Angier has written a nice column on the relatively unheralded walrus, which — like the far more charismatic polar bear — is having a hard time as Arctic sea ice retreats earlier and farther each spring and summer and forms later in the boreal fall.

Scientists believe that the brown bear lineage split over 300,000 years ago to form the polar bear (Ursus maritimus), theorizing that a group of early brown bears became isolated in colder regions and ultimately adapted to life on ice.

Of course, temperatures in the Churchill region have risen, and the ice extent in Hudson Bay is melting earlier and forming later (by about a month in each case) than 30 years ago.

For example, lake and river ice is melting earlier in the spring and forming later in the fall.

The ice bridge formed in early December and Gudmansen suggests that the location of the bridge in 2013 may have been influenced by ice islands that calved from the Petermann Glacier in August of 2012.

«As a result of climate change, sea ice is melting earlier and forming later each year, leaving polar bears less time to hunt.

However the northern autumn would be getting slightly cooler over the centuries, so ice would tend to be formed earlier.

(My dad told me about explorer / geographer David Thompson, who traveled through Ontario in the early 1800s and found the water already forming ice in early October — two months earlier than it does now.)

Arctic sea ice is melting earlier and forming later.

After the minimum, a new freeze cycle begins: early October sea ice forming near Kotzebue, Alaska.

Sea ice is forming two months later and melting one month earlier.

Alternatively, meltwater ponds on the surface of the ice or warmer refugia near active volcanoes may have provided sanctuary to early life - forms.

After Android 4.0 (Ice Cream Sandwich) and Android 4.1 (Jelly Bean), the recent releases in the form of Android 4.2 and Android 4.3 are not major upgrades over the earlier iterations but the iterations are having improved Jelly Bean flavour.