ce50701f_GLAH12_Data_Dictionary__description
[Label] d_cntRngOff [Datatype (Dimensions)] DOUBLE (UNLIMITED) [long_name (standard_name)] Centroid Range Offset (NOT_SET) [units] meters [source] Rel 34 GLAS Binary Data [coordinates] DS_UTCTime_40 [description] 
Offset to be added to d_refRng to give the range in distance to the location of the centroid of the received echo from signal begin through signal end defined by the standard parameters.
GLAH12 Data Dictionary