COMPUTE_SEAPRS  2
DA_GET_GL_ATT_INT_CDF  4
DA_GET_GL_ATT_REAL_CDF  12
DA_GET_VAR_2D_INT_CDF  2
DA_GET_VAR_2D_REAL_CDF  31
DA_GET_VAR_3D_REAL_CDF  12
ROTATE_WIND  4