Change history: YYMMDD
   060110: downloaded original TMR CTD cast data from SOFeX project data web site;
           added to OCB database by Cyndy Chandler, OCB DMO, (cchandler@whoi.edu);
           all units information taken from original .xls file;

10 January 2006: Prepared for OCB data system by Terry McKee (PO Dept, WHOI) and Cyndy Chandler, OCB DMO (WHOI).

The TM_bottle data object was prepared from an excel file of
merged CTD and nutrient data file for the MBARI TM Rosette on Revelle.
Contact Zanna Chase (zanna@mbari.org) with questions about the original data.

original file: was downloaded in December 2005 from the
SOFeX data web site:
merged_TM_CTD_nut.xls

Note: cond units are S/m;
Temp is T90 (ITS-90 scale confirmed from .btl file);
Potemp is also T90;
PO4, Si, NO3 and NO2 are all uM, micromolar

The event number, date, time, latitude
and longitude position information were taken from the CTD header records.
For TMR1 station 7, the latitude may have been entered incorrectly during data acquisition
(55 °W) but was not changed to be consistent with the
cruise Activity Log (56 °W).

Final TMR-CTD station *.btl file header record showing history of processing steps:

TMR-CTD station 7

MATLAB data processing scripts:
Physical properties of seawater function was used to compute potential density:: PhyPropSW sw_pden.m