It is also affected by the presence of snow, hail and ice and can relate to dew, mist and fog.

Other colors can appear in the presence of light absorbing impurities, where the impurity is dictating the color rather than the ice itself.

Even with the overall warmth, temperature fluctuations should have been sufficient for the presence of polar ice caps and glaciers, but there is no evidence of either.

A competing theory to explain the presence of ice on the equatorial continents was that the Earth's axial tilt was quite high, in the vicinity of 60 °, which would place the Earth's land in high " latitudes ", although supporting evidence is scarce.

:* Species cumulonimbus capillatus ( Cb cap ): Thunderclouds with very high tops that have become fibrous due to the presence of ice crystals ( C < sub > L </ sub > 9 ).

However, the presence or absence of land masses at the poles is not sufficient to guarantee glaciations or exclude polar ice caps.

The presence of snow and ice is a well-understood positive feedback mechanism for climate.

The presence of water ice is supported by spectroscopic observations, which have revealed crystalline water ice on the surface of the moon.

When British scientists in Antarctica performed airborne ice-penetrating radar surveys in the early 1970s, they detected unusual radar readings at the site which suggested the presence of a liquid, freshwater lake below the ice.

Because of the persistent presence of the ice sheet, the island is sometimes taken to be part of Antarctica.

On October 7, 2009, the presence of water ice was confirmed on the surface of this asteroid using NASA ’ s Infrared Telescope Facility.

An alternative mechanism to explain the presence of water ice on 24 Themis is similar to the hypothesized formation of water on the surface of the Moon by solar wind.

However, images from Cassini indicate that Phoebe's craters show a considerable variation in brightness, which indicate the presence of large quantities of ice below a relatively thin blanket of dark surface deposits some thick.

Most ice sensors are simple thermal switches, and do not directly sense the presence or absence of ice buildup.

The presence of subfossil bones at Conkling Cave and Shelter Cave in southern New Mexico show that the species was present south of its current range at the end of the last ice age, leading some experts to project that the species could become increasingly vulnerable as global climate change increases the humidity in semiarid regions.

In 1974, when British scientists in Antarctica performed an airborne ice-penetrating radar survey and detected strange radar readings at the site, the presence of a liquid, freshwater lake below the ice did not instantly spring to mind.

There, they are one of the best lines of evidence for the recent presence of liquid water on Mars in the recent geological past, probably resulting from the slight melting of snowpacks on the surface or ice in the shallow subsurface on the warmest days of the Martian year.

Quaoar — a trans-Neptunian object of similar size — has strong water ice absorption features in its spectra but also has a very red color in the visible implying the presence of the ultrared matter on its surface.

The presence of crystalline water ice, and possibly ammonia ice may indicate that a renewal mechanism was active in the past on the surface of Orcus.

Glacial striation and the presence of chalk and flint erratics that originated from the bed of the North Sea demonstrate the influence of ice action on the geomorphology of the islands.

For example, the chemical composition of and the presence of volcanic ash with the specific acidity spikes in the Greenland ice cores presents clear evidence that they are volcanic, not impact, in origin.

The presence or lack of access by road or trail has a direct and controlling influence on all phases of forest management and utilization such as: ( A )

This caution has been particularly noticeable in a tendency of retailers and distributors to shift the inventory burden back on the supplier, and the fact stocks at retail are low in many lines has escaped attention because of the presence of higher stocks at the manufacturing level.

The silver chloride was fused under vacuum in the presence of aluminum chips with the resultant product of Af which was sublimed into a flask on the vacuum line.

The mixture was then extracted with alkali and with water following which the carbon tetrachloride was distilled on a Vigreux column, a 25% center cut being retained which was then degassed under vacuum in the presence of Af.

Failing to heed the lesson so clearly contained in the satellite treaties, President Truman re-declared the Cold War on March 12, 1947, in the Truman Doctrine, exactly one week after the Herald Tribune editorial was written, and a year after the Cold War had been announced by Churchill at Fulton, Missouri, in Truman's presence.

Activity by British traders and the presence of a colony on the Red prompted the United State War Department in 1819 to send Lieutenant-Colonel Henry Leavenworth from Detroit to put a post 300 miles northwest of Prairie Du Chien, until then the most advanced United States post.

While both sexes state that kindness is the most preferable trait in a partner there is some evidence that men place less value on this than women and that women may not be more altruistic in presence of an attractive man.

For the Hellenes, high on the cliff a temple was built, which became a worship site devoted to Aphrodite, in her particular local presence as Aphrodite Amathusia along with a bearded male Aphrodite called Aphroditos.

Schwarzenegger has remained a prominent presence in bodybuilding and has written many books and articles on the sport.

It is thus the first site where the archaeology confirms the continuity of Mycenaean and Classical Greek religion, which has been inferred from the presence of the names of Classical Greek divinities on Linear B texts from Pylos and Knossos.

But, there is no evidence whatever of a Greek presence on the west coast and the Ionians at Aleria on the east coast had been expelled by the Etruscans long before Roman domination.

Development of the optical system is highly dependent on the presence of melanin, and the reduction or absence of this pigment in albinistic individuals may lead to

White spots are sometimes present below the eyes, and there may be white markings on the legs and back ; the absence or presence of these white markings may be indicative of distinct races.

Bodyguards act as a shield for the potential target, keeping lookout for potential attackers ( sometimes in advance, for example on a parade route ), and putting themselves in harm's way — both by simple presence, showing that physical force is available to protect the target, and by shielding the target during any attack.

AMD ex-CEO and founder Jerry Sanders developed strategic partnerships during the late 1990s to improve AMD's presence in the PC market based on the success of the AMD K6 architecture.

Members of the Branchiopoda are unified by the presence of gills on many of the animals ' appendages, including some of the mouthparts.

The Virgin Islands were first settled by the Arawak from South America around 100 BC ( though there is some evidence of Amerindian presence on the islands as far back as 1500 BC ).

However, despite those efforts, the presence of the Armed Forces on the border regions of the Brazilian Amazon continues to be sparse and disperse, given the fact that the Army has just 28 border detachments in that area, a total of 1, 600 soldiers, or 1 men for every of borders.

The foreign policy under the Rousseff administration has sought to deepen Brazil's regional commercial dominance and diplomacy, expand Brazil's presence in Africa, and play a major role in the G20 on climate change and in other multilateral settings.

However, the most important influence on Bauhaus was modernism, a cultural movement whose origins lay as far back as the 1880s, and which had already made its presence felt in Germany before the World War, despite the prevailing conservatism.

The presence of an easy-to-learn language such as BASIC on these early personal computers allowed small business owners to develop their own custom application software, leading to widespread use of these computers in businesses that previously did not have access to computing technology.

Saint Peter | Peter consecrating ( ordaining ) Hermagoras of Aquileia | Hermagoras by the laying on of hands in the presence of Mark the Evangelist | Mark.

The presence of either type of horizon depends on the details of the FLRW model that describes our Universe.

Russian loans are distinguished from Old Bulgarian ones on the basis of the presence of specifically Russian phonetic changes, as in оборот ( turnover, rev ), непонятен ( incomprehensible ), ядро ( nucleus ) and others.