As the sun flushes heat into our atmosphere at a mind - boggling rate of 175 quadrillion watts,
the air near the equator absorbs more energy than the air near the poles.
According to the study, as the planet warms, the Hadley Cell, which links together rising
air near the Equator and descending air in the subtropics, expands poleward.
As you can see,
air near the equator is lifted high into the troposphere, effectively drying it by precipitating out nearly all of the water vapour.
Hadley Cell A direct, thermally driven overturning cell in the atmosphere consisting of poleward flow in the upper troposphere, subsiding air into the subtropical anticyclones, return flow as part of the trade winds near the surface, and with rising
air near the equator in the so - called Intertropical Convergence Zone.
The ITCZ is located at the ascending branch of the Hadley cell, an atmospheric circulation associated with rising
air near the equator and descending air in subtropical regions (see Fig. 2 for a schematic).
Not exact matches
Near the
equator, large - scale convection causes
air to rise.
This west - to - east flow of
air in the Northern hemisphere is maintained by the gradient of heat between the cool Arctic and warmer areas
near the
equator.
Earth's atmosphere has a «transportation belt» of
air flows which move ozone from the main production areas
near the
equator towards the poles.
Central to their bid was a revolutionary cooling system that would use solar power to provide zero - carbon
air conditioning to cool the stadiums, technology that has the potential to transform the lives of tens of millions living
near the
equator.
15 Heat Transport in the Biosphere The unequal heating of Earth's surface drives winds and ocean currents transport heat throughout the biosphere Winds form because warm
air tends to rise and cool
air tends to sink
air that is heated
near the
equator rises
The South Pole and Samoa (SH
near the
equator) clearly lag the NH stations in average CO2 level, and to catch the same CO2 level, the variability need to be shifted for some 12 months lag for Samoa (which receives some NH
air in the seasons when the ITCZ is in southern positions) and 18 months lag for the South Pole.
Now with Hadley cells warm moist
air rises from
near the
equator.
8 D. Convection on Earth
Air is heated on Earth
near Equator.
Cold
air sinks
near the poles and moves back towards the
equator.
Now consider what happens to any given stationary parcel of
air near the surface that the tropical Hadley cell sucks towards the
equator.
T0 can be taken as more or less constant
near 255 K while P0 is latitude dependent
near 400 mbar at the
equator, and
near the ground in the polar regions (as there there is very little water vapour and the optical thickness of the
air on most of the thermal infrared spectrum is low).
The rising
air creates a low pressure zone
near the
equator.
The
air circulation systems in both hemispheres move back equatorward and the ITCZ moves
nearer the
equator as the speed of the hydrological cycle decreases due to the warming stratosphere reducing the temperature differential between stratosphere and surface.
7)
Near surface the
air starts to move towards
equator and the next loop on the Hadley cell.
On the web Hadley cell
air flow is explained as follows: «This flow of
air occurs because the Sun heats
air at the Earth's surface
near the
equator.