What do values of 14 mean in “i_LRCL_Flag” (GLA09)?
A value of 14 occurs when no ground signal is detected. In this case, it is assumed that the laser pulse became fully attenuated before it penetrated the lowest layer of clouds or aerosol; therefore, the value given for the bottom of the lowest layer is the height where the pulse is extinguished, which is likely different than the actual bottom height of the cloud.
