Tendencies and dynamic of non-liner climatic changes under the influence of solar constant and Bond's albedo long-term variations

UDC 551.511.13

Tendencies and dynamic of non-liner climatic changes under the influence of solar constant and Bond's albedo long-term variations

Abdusamatov H. I., Lapovok Yevgeniy V., Khankov S.I.


Abstract
A mathematical model has been developed to analyze the Earth climate changes due to long term periodical variations of the solar constant. The model accounts for dependence Bond's albedo on planetary temperature increment. The correlation between Bond's albedo increment and Earth surface albedo temperature changes is analyzed. Two-secular cycle of solar constant variations is investigated. The oscillation of planetary temperature is shown to decrease when thermal planetary inertia, dependent on active ocean layer depth, is increased. In addition, time delay of planetary temperature oscillation with respect to solar constant oscillation phase is increased at the same time. At the half-period of the Sun’s luminosity decrease planetary temperature decrease is shown to be greater than the temperature increase at solar constant increase phase. In the Sun’s luminosity and solar constant decrease phase planetary temperature decrease amplitude is 1.5-2.5 times as planetary temperature positive growth amplitude in the Sun’s luminosity increase phase. The results obtained confirm the tendency of prevailing growth of the Earth's cryosphere, cryosphere size decrease being slowed down greatly.

Keywords: solar constant, Bond's albedo, planetary temperature, thermal ocean inertia


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