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The distribution of land and sea has a marked effect upon the temperature,the interior of a land mass being subjected to extremes of heat and cold,while the oceans and adjacent land areas enjoy more equable climatic conditions.This is due to the follwing reasons.
(1) The specific heat of water is more than that of the soil.Therfore water requires more heat to raise its temperature with the result that sea surface gets less heated than a land surface.
(2)On a coastal station,the incident solar radiation is mainly utilised in evaporating the water from the adjacent sea surface only and not therefore appreciably raising the temperature of the nearby land surface.
(3)Soil is a poor conductor of heat.So,the solar radiation heats a thin layer of air immediately above the ground thereby raising its temperature considerably.But in the case of the sea surface, the heating effect of the solar radiation penetrates to a considerable depth below the surface.Threfore,air above the sea surface does not get that much opportunity to be heated by the solar radiation.
(4)The abundance water vapour on a sea or moist surface exercises a blanketing effect by absorbing the outgoing radiation and re-radiating some of it back to the surface particularly in the night keeping the sea areas and the adjecent land areas warm in the night.
(5) Land, being a absorber of heat,is also a good radiator of heat.Threfore the diurnal range of temperature(range between the maximum temperature and minimum temperature for a particular day) is larger over the interior land areas than over the sea areas or the coastal areas.

2007-12-11 20:33:28 · answer #1 · answered by Arasan 7 · 0 0

Water has a lot of thermal inertia and has good thermal conductivity so that the surface temperature changes less than the surface of land. ( It's different if you get below the frost line but there's little thermal conductivity so it usually doesn't matter.) The water temperature doesn't change much and the wind transfers heat so as to moderate the temperature of frontal areas.

As an example, land can get below 0 C. but heat must be removed from water in order to freeze it due to the phase change and the water stays at 0 C until it freezes.

2007-12-11 19:52:26 · answer #2 · answered by LucaPacioli1492 7 · 0 0

The surface of land heats and cools much faster than the surface of water. This effect causes water to moderate air tempratures over it so there aren't the wide temprature swings found over land. Oceanfront land is the recipient of this ocean effect if the winds are off the ocean.

2007-12-11 18:58:31 · answer #3 · answered by Anonymous · 0 0

Because land and water cool differently, causing temperature fluctuations in the surrounding areas.

2007-12-11 19:09:44 · answer #4 · answered by ? 2 · 0 0

Generally, large bodies of water do not change temperature rapidly, acting with a moderating effect on the adjacent land mass.

2007-12-11 20:20:09 · answer #5 · answered by cranknbank9 4 · 0 0

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