Sentences with phrase «pressure from surface water»

This is important because added pressure from surface water filling crevasses can drive cracks right through the ice sheet.

Not exact matches

One of [the whale's] peculiarities it is, to have an entire non-valvular structure of the blood - vessels, so that when pierced even by so small a point as a harpoon, a deadly drain is at once begun upon his whole arterial system; and when this is heightened by the extraordinary pressure of water at a great distance below the surface, his life may be said to pour from him in incessant streams.

Protoplanet Vesta, visited by NASA's Dawn spacecraft from 2011 to 2013, was once thought to be completely dry, incapable of retaining water because of the low temperatures and pressures at its surface.

«The DIC lakes are situated within bedrock troughs in mountainous terrain, exist at temperatures well below the pressure - melting point, do not receive surface meltwater input, and likely consist of hypersaline water derived from dissolution of a surrounding salt - bearing geological formation,» the researchers reported.

(In the global time average, diffusion of latent heat is in the same direction as sensible heat transport, but latent heat will tend to flow from higher to lower concentrations of water vapor (or equilibrium vapor pressure at the liquid / solid water surface), and regionally / locally, conditions can arise where the latent heat and sensible heat fluxes are oppositely directed.)

In a runaway greenhouse, enough water vapor evaporates from the ocean to keep the surface at saturation, and even if there weren't any contribution to surface pressure from the rest of the atmosphere, this would prevent boiling.

New observations from the North Sea, a NW European shelf sea, show that between 2001 and 2005 the CO2 partial pressure (pCO2) in surface waters rose by 22 matm, thus faster than atmospheric pCO2, which in the same period rose approximately 11 matm.

5) As a consequence, the partial pressure of CO2 has been rising in these as sinks acting surface waters, which has been making CO2 absorption from the atmosphere to the sea surface sinks become slower.

Think on atmospheric chemistry, individual rates for the reactions of nitrogen oxides and oxy - radicals can dependent on concentration, atmospheric pressure, temperature, light flux, liquid water levels, silicate surface (from dust) and «unknown unknowns *».

Thanks Bill for this — nice graphics, though we are still left with the question of what the ultimate driver is — winds respond to pressure differences, and pressure differences can result from warm / cold surface waters or....

When the intensity of ultraviolet light from the sun increases, temperature rises in this ozone rich air and weakens the downdraft, lowers the surface pressure and with it the strength of the trade winds that blow across the ocean to the low pressure zones that form over the warm waters that accumulate in the west.

As the temperature increases, the water vapor pressure (hence by inference the water evaporation rate on non-dry surface) increases supralinearly; that is, a 1K increase from 288 K is much less than a 1K increase from 308K.

Thus a parcel of air into which water vapour is injected will rise without any change in ambient temperature.The reduction of density from surface upwards is what initially reduces air pressure as measured from the surface.

At the surface, increased pressure from injecting water vapour into a parcel of air via evaporation causes the parcel to rise so that surface pressure below it falls.

iii) If the air temperature tries to diverge from the temperature set by the ocean surfaces the surface pressure distribution shifts to changes the speed of the water cycle thereby eliminating any such divergence.

Air is useless at opposing the weight of the ice, so we are only interested in the water pressure, which requires that we acknowledge the importance of meltwater from the surface.

The water vapor pressure is below the saturation value of 101325 Pa at 373.15 K (that isn't quite right either, but close enough) so there will be net evaporation of water from the surface as it warms from absorption of radiation and conduction from the water vapor.

A balance develops between the Coriolis force and the force arising from the horizontal water pressure gradient such that surface currents flow parallel to the contours of elevation of sea level.

As a consequence, the partial pressure of CO2 has been rising in these as sinks acting surface waters, which has been making CO2 absorption from the atmosphere to the sea surface sinks become slower.

As regards a warming of the ocean skin, evaporation is a continuous process caused by temperaure, density and pressure (not just temperature) differentials between water and air so that the rate of evaporation accelerates when a water surface is warmed such as from the warming effect of extra greenhouse gases (especially if the air is dry).

Only if the oceans freeze across their entire surfaces thereby causing the hydrological cycle to cease or if the sun puts in energy faster than it can be pumped upward by the hydrological cycle will the basic temperature equilibrium derived from the properties of water and the density and pressure of the atmosphere fail to be maintained.

If the majority of the heat in the water at depth is from pressure, friction and gravity effects how can the tiny amount of heat from the sun on the surface layers be of any consequence.

Gas wells are punched deep into the earth; layers of rock are then «cracked» by injecting sand - and chemical - filled water under great pressure - the so - called «fracing» process - allowing natural gas to escape to the surface via well head, and so it is feared, allowing contaminants from fracing fluids to move into nearby water wells.

«Given that the UK are under immense pressure to build more homes year on year, any improved initiatives which might lead to measures during the construction phase to improve or reduce the impact on the environment and help mitigate flood damage, particularly from surface water run - off has to be a good idea.