extRemes (version 1.65)

Peak: Salt River Peak Stream Flow

Description

Peak stream flow data from 1924 through 1999 for the Salt River near Roosevelt, Arizona.

Usage

data(Peak)

source

U.S. Geological Survey (http://water.usgs.gov/nwis/peak) for Salt River peak flows. NOAA Climate Prediction Center (http://www.cpc.ncep.noaa.gov/data/indices) for seasonal mean Darwin pressures.

Details

Peak stream flow in cfs (1 cfs=0.028317 $m^3/s$) data for water years (October through September) from 1924 through 1999 for the Salt River near Roosevelt, Arizona. Data for 1986 are missing. Also includes seasonal mean Darwin pressures (mb--1000).

Several analyses have been performed on streamflow at this location (see, e.g., Anderson and Meerschaert (1998), Dettinger and Diaz (2000); and, for extreme stream flow, Katz et al. (2002) Sec. 5.2.2).

References

Anderson, P. L. and Meerschaert, M. M. (1998) Modeling river flows with heavy tails. Water Resour Res, 34, (9), 2271--2280.

Dettinger, M. D. and Diaz, H. F. (2000) Global characteristics of stream flow seasonality and variability. Journal of Hydrometeorology, 1, 289--310.

Katz, R. W., Parlange, M. B. and Naveau, P. (2002) Statistics of extremes in hydrology. Advances in Water Resources, 25, 1287--1304.

Examples

data(Peak)
str(Peak)
# Fig. 9 of Katz et al. (2002) Sec. 5.2.2.
plot(Peak[,"Year"], Peak[,"Flow"]/1000, type="l", yaxt="n",
    xlab="Water year (Oct-Sept)", ylab="Annual peak flow (thousand cfs)")
axis(2,at=c(0,40,80,120),labels=c("0","40","80","120"))