PWV                package:RadioSonde                R Documentation

_P_r_e_c_i_p_i_t_a_b_l_e _W_a_t_e_r _V_a_p_o_r

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

     Calculates precipitable water (in mm) up to `minp' (minimum
     pressure) using dew-point temperature (`td') and temperature
     (`temp') (both in degrees C).

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

     PWV(sonde = NULL, press, td, temp, minp = 400)

_A_r_g_u_m_e_n_t_s:

   sonde: Sonde data read in using `getsonde' function. 

   press: Pressure (only used if `sonde' is NULL) 

      td: Dew-point temperature (in deg C) (only used if `sonde' is
          NULL) 

    temp: Temperature (in deg C) (only used if `sonde' is NULL)

    minp: Minimum Pressure 

_V_a_l_u_e:

     single numeric value is returned.

_A_u_t_h_o_r(_s):

     Junhong Wang

_S_e_e _A_l_s_o:

     `getsonde', `td.to.q'

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

     # Example 1
     filename <- system.file("exampleData", "ExampleSonde.txt", package = "RadioSonde")   
     sample.sonde <- getsonde(filename)

     ######
     # OK, now find precipitable water vapor.

     PWV( sample.sonde)

