&DARWIN_INDICES
 I_DIC   =           1,
 I_NO3   =           2,
 I_NO2   =           3,
 I_NH4   =           4,
 I_PO4   =           5,
 I_FET   =           6,
 I_SIO2  =           7,
 I_DOC   =           8,
 I_DON   =           9,
 I_DOP   =          10,
 I_DOFE  =          11,
 I_POC   =          12,
 I_PON   =          13,
 I_POP   =          14,
 I_POFE  =          15,
 I_POSI  =          16,
 I_PIC   =          17,
 I_ALK   =          18,
 I_O2    =          19,
 I_CDOM  =          20,
 E_CDOM  =          20,
 I_C     =          21,
 E_C     =          70,
 I_CHL   =          71,
 E_CHL   =         101,
 N_DARWIN        =         101
 /