PORTw                package:extRemes                R Documentation

_D_a_i_l_y _m_a_x_i_m_u_m _a_n_d _m_i_n_i_m_u_m _t_e_m_p_e_r_a_t_u_r_e

_D_e_s_c_r_i_p_t_i_o_n:

     Daily maximum and minimum Winter temperature (degrees centigrade)
     with a covariate for the North Atlantic Oscillation index from
     1927 through 1995.  Data is for Winter for Port Jervis, New York
     (PORTw) and Spring for Sept-Iles, Quebec (SEPTsp).

_U_s_a_g_e:

     data(PORTw)

_F_o_r_m_a_t:

     A data frame with 68 observations on the following 16 variables.

     _Y_e_a_r a numeric vector giving the year.

     _M_T_M_A_X a numeric vector giving the mean maximum temperatures
          (degrees centigrade) over a one month period.

     _M_T_M_I_N a numeric vector giving the mean minimum temperatures
          (degrees centigrade). over a one month period.

     _S_T_D_T_M_A_X a numeric vector giving the standard deviations of maximum
          temperatures (degrees centigrade) over a one month period.

     _S_T_D_M_I_N a numeric vector giving the standard deviations of minimum
          temperatures (degrees centigrade) over a one month period.

     _T_M_X_1 a numeric vector giving the maximum temperature (degrees
          centigrade) over a one month period.

     _T_M_N_0 a numeric vector giving the minimum temperature (degrees
          centigrade) over a one month period.

     _M_D_T_R a numeric vector giving the mean diurnal temperature range
          (degrees centigrade).

     _A_O_i_n_d_e_x a numeric vector giving the Atlantic Oscillation index
          (see Thompson and Wallace (1998)).

_D_e_t_a_i_l_s:

     See Wettstein and Mearns (2002) for a much more detailed
     explanation of the above variables.

_S_o_u_r_c_e:

     National Oceanic and Atmospheric Administration/National Climate
     Data Center (NOAA/NCDC).

_R_e_f_e_r_e_n_c_e_s:

     Gilleland, Eric, and Katz, Richard W., Tutorial for the 'Extremes
     Toolkit: Weather and Climate Applications of Extreme Value
     Statistics.' <URL: http://www.assessment.ucar.edu/toolkit>, 2005.

     Thompson, D.W.J. and Wallace, J.M. The Arctic Oscillation
     signature in the wintertime geopotential height and temperature
     fields, Geophys. Res. Lett., 25: 1297-1300, 1998.

     Wettstein, Justin J. and Mearns, Linda O., The influence of the
     North Atlantic-Arctic Oscillation on mean, variance and extremes
     of temperature in the northeastern United States and Canada.
     Journal of Climate, 15:3586-3600, 2002.

_E_x_a_m_p_l_e_s:

     data(PORTw)
     str(PORTw)
     par( mfrow=c(2,1))
     plot(PORTw[,"TMX1"], type="l", lwd=2, xlab="", xaxt="n", ylab="Maximum Temperature (C)")
     plot(PORTw[,"TMN0"], type="l", lwd=2, xlab="", xaxt="n", ylab="Minimum Temperature (C)")
     par(mfrow=c(1,1))
     # See Gilleland et al. (2005) for more examples with these data using extRemes.

