Why does the Tropopause is warmer and higher at the subsidence region of walker cell during winter?
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The Tropopause is warmer and higher at the subsidence region of the Walker cell during winter due to a combination of factors. The adiabatic cooling from rising motions in the tropical Hadley cell circulation keeps the air near the tropopause cold, with radiative heating balancing this cooling effect . Additionally, the release of energy from recombination of atomic oxygen, possibly carried downward by large-scale subsidence, can compensate for the heat loss in the upper atmosphere, contributing to higher temperatures in the winter months . Furthermore, the occurrence of strong wind shear near the tropopause, particularly during winter, can lead to turbulence and cross-tropopause mixing, influencing the temperature and height of the Tropopause in the subsidence region of the Walker cell .
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| Papers (5) | Insight |
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2 Citations | During winter, the Tropopause is warmer and higher at the subsidence region of the Walker cell due to significant seasonal oscillations in the Pacific and Atlantic centers, as observed in satellite data. |
34 Citations | The Tropopause is warmer and higher at the subsidence region of the Walker cell during winter due to adiabatic cooling from rising motions in the Hadley cell circulation and radiative heating. |
14 Dec 2022 | The Tropopause is warmer and higher at the subsidence region of the Walker cell during winter due to lower water vapor and ozone mixing ratios, as observed over Chennai in the northeast monsoon region. |
84 Citations | Not addressed in the paper. |
23 Jul 2021 | Not addressed in the paper. |
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Step 3:
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