The extrapolation routine in DECODR was miscalculating the 200m dynamic height for CalCOFI 1311NH. The problem was the result of having dynamic height listed shallow to deep in the 1311_DHtD.csv file. Inverting the depths from shallow>deep to deep>shallow solved the problem. An inverter utility was added to DECODR's CSV tab; it reads in the YYMM_DHt?.csv and inverts the data for each cast, deep>shallow. The sta.csv>csv module which generates this file will be corrected to output deep>shallow so the next cruises will not need to be inverted.