is the hemisthere, "n" for northern and "s" for south, of the precipitation serie.
Value
A data.frame containing the following variables:
year is the year;
season is the meteorological supraseason, wet or dry; and
pci.season is the seasonal perceptation concentration index.
References
M. de Luis, J. C. Gonz\'alez-Hidalgo, M. Brunetti, L. A. Longares (2011).
Precipitation concentration changes in Spain 1946-2005. Natural Hazards and Earth System Science,
5:11, pp. 1259--1265