extRemes (version 1.61)

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. Modeling river flows with heavy tails. Water Resour Res, (34):2271--2280, 1998.

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

Katz, Richard W., Parlange, Marc B. and Naveau, Philippe. Statistics of extremes in hydrology. Advances in Water Resources, (25):1287--1304, 2002.

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"))