sea surface temperature (SST) rise, not only affect tropospheric temperature, according to scientists study revealed, but will also affect the troposphere and stratosphere the quality of the exchange, thereby affecting the global climate.
Human activities increase the concentration of greenhouse gases caused by the consequences, including the most commonly brought tropospheric temperature rise and the net radiation due to stratospheric cooling caused by the temperature dropped, and will delay the Antarctic ozone hole response speed. Recent studies showed that, in addition to these effects, global warming caused by the tropical sea surface temperature rise will be affected at the top of the troposphere and the stratosphere at the bottom of the quality of the exchange process, thereby affecting the global climate.
Equatorial regions Tropopause higher, close to 20 kilometers, mid-latitudes lower Tropopause; and equatorial regions than the hot, rising air currents to reach Tropopause after transmission poles to reach the mid-latitudes into the subsiding air, this circulation can be at the top of the quality of the troposphere and stratosphere at the bottom of the low exchange, known as Brewer - are Brewer-Dobson circulation. In equatorial regions, Brewer - are Walson circulation on the troposphere could be introduced into the lower stratospheric air, resulting in stratospheric ozone concentration at the bottom as well as the temperature dropped. Over the past few decades from satellites and high-altitude observation data show that the stratospheric ozone layer at the bottom of a lower temperature than usual, said Brewer - are being enhanced Walson circulation. According to the results of numerical model simulation analysis, resulting in Brewer - have Walson circulation enhance one of the reasons is probably because of global warming and rising sea-surface temperature.
Numerical model simulation results showed that the equatorial region, mainly due to increased airflow planetary waves (planetary wave, wavelength and the Earth's radius of a considerable scale, 1-3 wave can cover an entire latitude circle). Planetary atmospheric wave formation in the troposphere, at the same time to the horizontal and vertical directions, and then because of the energy dissipation or broken wave (wave breaking) vanish. Some planetary waves sent to the bottom of the stratospheric ozone layer disappeared, the energy contribution to the Brewer - are Walson circulation. When sea-surface temperature rise caused by the situation of enhanced convection, latent heat release heat at the top of the troposphere, making the top of the troposphere and stratosphere temperature gradient between the bottom of the increase, leading to increased air flow increased, planetary waves will be enhanced. In addition, the convection heating to enhance not only on the troposphere, but also caused by pressure changes in the market, the same may lead to planetary waves, which enhanced Brewer - are Walson circulation and speed up at the top of the troposphere and the stratosphere at the bottom of the quality of inter-exchange.
The results from these studies show that sea surface temperature and humidity changes, not only caused a change in the troposphere, and even affected the low stratospheric temperature, power status, as well as the distribution of chemical substances. More and more water vapor by Brewer - are Walson circulation at the top from the troposphere into the stratosphere at the bottom, and even further enhance the greenhouse effect, causing the Earth's climate changes, it will be we do not like to see the scene.
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