Revive Eden: Green Sahara Now Volume 1 - Zhang, Hong-Quan
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Six thousand years ago, the Sahara was lush and green. The Earth's precession (wobbling) has been blamed as the main cause for the vast climate changes between arid desert and green land in the Sahara. Nevertheless, this book reveals that the Earth's precession only serves as a perturbation to trigger the transitions. The main control is the stability of the water cycle in the Sahara. About 5700 years ago, the Green Sahara suddenly started to wither. The wilting began in the standalone Great Chotts Basin, which is in the rain shadow of the Atlas Mountain ranges. When the water cycle stability…mehr

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Produktbeschreibung
Six thousand years ago, the Sahara was lush and green. The Earth's precession (wobbling) has been blamed as the main cause for the vast climate changes between arid desert and green land in the Sahara. Nevertheless, this book reveals that the Earth's precession only serves as a perturbation to trigger the transitions. The main control is the stability of the water cycle in the Sahara. About 5700 years ago, the Green Sahara suddenly started to wither. The wilting began in the standalone Great Chotts Basin, which is in the rain shadow of the Atlas Mountain ranges. When the water cycle stability in this basin was broken, the Great Chott Lakes dried quickly and the strong rain shadow effect became fully active, triggering desert formation. The desert expanded east and south, like a spreading wildfire powered by the westerlies and trade winds. This led to desertification and aridification in North Africa, West Asia, and the Mediterranean which have continued synchronously until this day.
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Autorenporträt
Hong-Quan Zhang has a PhD in Fluid Mechanics from Tianjin University, an MS and a BS in Thermal Energy Engineering from Xian Jiaotong University. He joined the University of Tulsa in 1998 and is currently Williams Endowed Chair Professor of Petroleum Engineering and Director of the Tulsa University Artificial Lift Projects (TUALP). He has published more than 50 refereed papers and made more than 100 presentations at various technical meetings and forums. In 1993 and 1994, as an Alexander von Humboldt Research Fellow, he conducted researches at the Max Planck Institute of Fluid Mechanics and the German Aerospace Research Establishment in Göttingen, Germany.