precipitation;
climate change;
NAO;
central Italy;
PRECIPITATION;
VARIABILITY;
D O I:
10.1016/j.proenv.2011.07.045
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Daily precipitation and river discharge (1920-2010) in the Tiber river basin (Central Italy) have been analyzed by means of standardized indices at the annual and seasonal scale; the existence of trends has been verified by means of the non parametric Mann-Kendall. Advantages/disadvantages arising from the use of standardized indices in order to identify the climatic signal at basin scale are discussed as well as the relation between rainfall signal at basin scale and climatic global indices (i.e. North Atlantic Oscillation Index). (C) 2010 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Spatial Statistics 2011