Welcome to the HOT Water Sample Data Base

Water sample data from HOT are written according to the *.sea
files specified by the WOCE Hydrographic Programme Office, for
submission of these data to the WHP. One file is written for
each HOT cruise (e.g., hot1.sea contains the data from HOT-1).
Files from the ALOHA-Climax (AC) cruises have the prefix ac
(e.g., ac1.sea contains the data from AC-1).

Formats for these files are detailed in the WHP Office Report
WHPO 90-1, available from Steve Diggs, WHPO Data Manager, 
Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, 
CA 92093-0214.

The files are self-explanatory, one column is written for each
measured parameter.  Missing data are filled with -9.  A 5-line
heading labels each column. 

The first year's temperatures are reported in IPTS-68.  Subsequent
temperature are reported in ITS-90 units. Since temperature
sensor calibrations were done in IPTS-68 units, and the UNESCO
routines require IPTS-68 temperature, all intermediate
processing was done in IPTS-68. As a final step, temperature and
potential temperature were converted to ITS-90 using
t_90 = 0.99976 t_68.

Variables having 7 asterisks on the 4th heading line have a quality
flag associated with them.  These 1-digit quality flags are concate-
nated to form quality word which is listed as the last variable in 
each row.  The values each digit can assume and their meanings are
listed below:


Bottle quality flag definitions:

 Byte Value  Definition
     1       Not assigned.
     2       No problems noted.
     3       Leaking.
     4       Did not trip correctly.
    5-8      Not assigned.
     9       Samples not drawn from this bottle.
 
     
Water sample quality flag definitions:    

 Byte Value  Definition
     1       Sample for this measurement was drawn from water bottle
             but analysis not received.
     2       Acceptable measurement.
     3       Questionable measurement.
     4       Bad measurement.
     5       Not reported.
     6       Mean of replicate measurements.
     7       Manual chromatographic peak integration.
     8       Irregular digital chromatographic peak integration.
     9       Sample not drawn for this measurement from this bottle.