Earth’s Cryosphere, 2023, Vol. XXVII, No. 3, p. 51-61.
CLIMATE AND CRYOSPHERE
CHANGES IN THE EARTH’S INSOLATION DURING THE HOLOCENE
V.M. Fedorov1,*, D.M. Frolov1, E.A. Agafonova2
1 Lomonosov Moscow State University, Faculty of Geography, Leninskie Gory 1, Moscow, 119991 Russia
2 Shirshov Institute of Oceanology, Russian Academy of Science, Nakhimovskiy prosp. 36, Moscow, 117997 Russia
*Corresponding author; e-mail: fedorov.msu@mail.ru
Variations in the Earth’s insolation by latitudes and seasons in certain periods of the Holocene are considered. A comparative analysis of insolation in boundary years of geochronological periods with modern insolation (2022) is carried out. The change in summer insolation in the hemispheres is analyzed separately. Quantitative estimates of changes in the intensity of insolation in the Holocene are assessed with respect to the modern insolation. The extremes of summer insolation in the Northern hemisphere are synchronized with the global paleogeographic events of the Holocene: the transition from the cold Pleistocene epoch to the warm Holocene and the Little Ice Age. It is shown that the change in the summer insolation of the Northern hemisphere is controlled by the characteristics of the Earth’s orbital motion and is a factor of the noted global paleogeographic events that took place predominantly in the Northern hemisphere.
Keywords: climate change, insolation, insolation temperatures, surface air temperature, insolation contrast,
meridional temperature gradient, trends and causes of change
Recommended citation: Fedorov V.M., Frolov D.M., Agafonova E.A., 2023. Changes in the Earth’s insolation during the Holocene. Earth’s Cryosphere XXVII (3), 51–61.