Modeling the process of transition from paleoclimate to the current one as a result of a strong change in conditions

The paper gives the results of numerical calculations on the description of the Earth's climate with the displacement of its axis of rotation, the possibility of which is proven by some geological, archaeological and historical data. The study assumes that the axis inclination angle to the ecliptic plane is maintained. We carried out some calculations on modeling the process of transition from paleoclimate to the current one as a result of displacement of the Earth's rotation axis into the present position. The calculations are based on the hydrodynamic three-dimensional global climate model. As a result, we introduced an approach to calculating the wind speed in the energy-and-water balance atmospheric model. Finally, we developed a method for forming and using the necessary maps and connections between them at the rotation of the Earth's axis.