Analysis of cross-correlated chaotic streamflows*
نویسندگان
چکیده
Elshorbagy et al. (2001) report the presence of chaos in the streamflow series in the Little River and Reed Creek based (only) on the low correlation dimensions of 1.19 and 1.07 obtained when the Grassberger-Procaccia correlation dimension algorithm (e.g. Grassberger & Procaccia, 1983) is employed. Whether or not a low correlation dimension is a proof of chaos is an important question (cf. Sivakumar, 2000; Schertzer et al., 2002; Sivakumar et al, 2002a) and, hence, their present results must be supported further. On the other hand, the reported dimensions of 1.19 and 1.07 are questionable, as: (a) no clear saturation of the correlation exponent at these values is observed; and (b) there is saturation also at other values.
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