Science Daily December 17, 2020
An international team of researchers (Germany, Ireland, Brazil, Mexico) demonstrated that regional hydroclimates controlled by the Northern Hemisphere mid-latitude storm tracks and the African and South American Monsoons changed synchronously during the last 10,000 years. They argue that these regional hydroclimate variations are connected and reflect the adjustment of the atmospheric poleward energy transport to the evolving differential heating of the Northern and Southern Hemispheres. These results indicate that changes in latitudinal insolation gradients and associated variations in latitudinal temperature gradients exert important control on atmospheric circulation and regional hydroclimates. Since the current episode of global warming strongly affects latitudinal temperature gradients through Arctic amplification, their results suggest projections of likely inter-hemispheric precipitation changes in the future…read more. Open Access TECHNICAL ARTICLEÂ
Schematic illustration of the general circulation of the atmosphere for early and late Holocene latitudinal insolation gradients. Credit: Nature Communications volume 11, Article number: 5447 (2020)