A physical interpretation for the detection of a recently observed sub-regional warming signal
Abstract
Recently, a climate change detection using an optimal fingerprint method could be achieved at the sub-regional scale (over France), on the 30-year trends of summer, minimum, daily, near-surface temperatures (TN) (1). A complementary investigation of the underlying mechanisms explaining the success of the detection was made. Our findings suggest that the spatial features of the summer TN simulated guess-pattern can be explained by the spatial pattern of soil water through the modulation of evapotranspiration. This result unexpectedly shows that a single, identified, local land process may play a dominant role on anthropogenic climate change at the sub-regional scale, independently from higher scale processes. (1) Spagnoli, B., S. Planton, M. Déqué, O. Mestre &J.-M. Moisselin, Detecting climate change at a regional scale : the case of France, Geophys. Res. Let., 29, 10, 90-1/90-4 (2002).
- Publication:
-
EGS - AGU - EUG Joint Assembly
- Pub Date:
- April 2003
- Bibcode:
- 2003EAEJA.....3395S