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Megasequías extendidas en el suroeste de los Estados Unidos durante los interglaciales del Pleistoceno
Peter J Fawcett1, Josef P Werne, R Scott Anderson
1Department of Earth & Planetary Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA. fawcett@unm.edu
Nature
|February 26, 2011
Resumen
Las antiguas megasequías ocurrieron en el suroeste de los Estados Unidos durante períodos interglaciales cálidos. Estos eventos áridos a largo plazo, que duran siglos, fueron más severos que las sequías modernas.
Área de la Ciencia:
- Palaeoclimatología y paleoclimatología.
- Ciencias del clima Ciencias del clima Ciencias del clima Ciencias del clima
- Geología Cuaternaria Geología Cuaternaria
Sus antecedentes:
- El cambio climático antropogénico plantea preocupaciones sobre el aumento de la severidad de la sequía en el suroeste de los Estados Unidos.
- Se predice que las megasequías futuras serán más largas y más severas que las sequías históricas.
- La ocurrencia y la intensidad de las megasequías pasadas en la región siguen sin estar claras.
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