The calculated lyr_dd14c column (from ISRaD_extra) contains quite some values that are < - 1000 ‰ (e.g. Harden_2002, Guillet_1988, Kramer_2012, Torn_1997...). I'm not sure what this is causing but I would assume that the values should all be >= -1000 ‰.
@jb388 @aahoyt @ShaneStoner
The calculated lyr_dd14c column (from ISRaD_extra) contains quite some values that are < - 1000 ‰ (e.g. Harden_2002, Guillet_1988, Kramer_2012, Torn_1997...). I'm not sure what this is causing but I would assume that the values should all be >= -1000 ‰. @jb388 @aahoyt @ShaneStoner