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DAILY RANGE OF TEMPERATURE#oceanography #Temperature◇ The difference of maximum and minimum temperature of a day (24 hours) is known as daily range of temperature.
◇ The daily range of temperature of surface water of the oceans is almost
insignificant as it is around
1°C only.
◇ On an average, the maximum and minimum temperatures of sea surface water are recorded at
2P.M. and
5 A.M. respectively.
◇ The diurnal range depends on the
conditions of sky (cloudy or clear sky),
stability or instability of air and
stratification of seawater.◇ The heating and cooling of ocean water is rapid under clear sky (cloudless) and hence the diurnal range of temperature becomes a bit higher than under overcast sky and strong air circulation.
◇ The high density of water below surface water causes
very little transfer of heat through conduction and hence the diurnal range of temperature becomes low.
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