HELMOD                 package:RTOMO                 R Documentation

_T_o_m_o_g_r_a_p_h_i_c _M_o_d_e_l _o_f _M_t. _S_a_i_n_t _H_e_l_e_n_s _s_u_b_s_u_r_f_a_c_e

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

     Three-dimensional Tomographic Model of Mt. Saint Helens subsurface

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

     data(HELMOD)

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


     _n_a_m_e name of file

     _A list origin information 

     _l_a_t latitude, signed decimal degree (West is negative)

     _l_o_n longitude, signed decimal degree

     _n_x dimension or number of nodes in x-direction

     _n_y dimension or number of nodes in y-direction

     _n_z dimension or number of nodes in z-direction

     _d_x delta x

     _d_y delta y

     _s_k_i_p skipping flag

     _D depths in Z, km

     _V background model for 1D structure

     _M_O_D 3D model structure

     _x x divisions (nodes in x, km)

     _y y divisions (nodes in y, km) 

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

     Lees, J. M.  (1992): The magma system of Mount St. Helens:
     Non-linear high resolution P-wave tomography, J. Volc. Geoth.
     Res., 53(1-4), 103-116.

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

     data(HELMOD)
     ## maybe str(HELMOD) ; plot(HELMOD) ...

