The Peculiarities of Transit Irradiation of the Space Surrounding the Earth

The distribution of the calculated values of the specific irradiation of the Earth and its surroundings from the Earth’s surface to the lower mesosphere is analyzed. The change of incoming transit radiation along three axes of space and time is considered. It was determined that in the annual course of transit irradiation in the polar regions at all altitude levels, two long periods of complete shading (associated with solstices) and two short periods of full illumination (associated with equinoxes) are synchronously observed for the hemispheres. In the latitudinal distribution of annual transit irradiation at all altitude levels in the latitudinal zone of 65°–70° and near it, a maximum is noted in each hemisphere, and a minimum in the equatorial region. For the time interval from 3000 B.C.E. until 2999 A.D. in each hemisphere there are areas of increase, decrease and zero values of transit irradiation. In general, for this time interval there is an increase in transit irradiation of the polar regions of the hemispheres (semi-surfaces of ellipsoids) at all altitude levels and a slight decrease in irradiation to areas located approximately between the polar circles. The result of this is an increase in the transit irradiation of half-surfaces and surfaces of ellipsoids in the space surrounding the Earth.