data (ice.river)flow.vat, flow.jok,
prec, and temp, each with 1095 observations
and the joint series ice.river.flow.vat, mean daily flow
of Vatnsdalsa river (cms), flow.jok, mean daily flow of Jokulsa
Eystri river (cms), prec, daily precipitation in
Hveravellir (mm), and mean daily temperature in Hveravellir (deg C).These datasets were introduced into the literature in a paper by Tong, Thanoon, and Gudmundsson (1985).
H. Tong, B. Thanoon, and G. Gudmundsson (1985): Threshold time series modelling of two Icelandic riverflow systems. Water Resources Bulletin 21, pp. 651-661.