
NODC DOCUMENTATION FOR CTD DATASETS
               
 CTD data from W0008A
#associated_versions:              *
#data_set_information:             *
#data_set_name:                    * 
#data_set_volume:                  142,025 kbytes  (1,193,746 records)
#source_computer:                  Sun Sparc Ultra 10
#source_computer_operating_system: Sun OS 5.6
#source_language:                  Fortran, C
#computer_code:                    ASCII
#originator_dataset_identifier:    W0008A
#data_dates:                       30 July - 17 August 2000 
#left_geographic_upper_bound:      127W  45N
#right_geographic_lower_bound:     124W  41N
#geographic_region:                Northeast Pacific
#data_type:                        SEASOAR  data 
#sphere:                           * 
#parameters:

     col  1:  latitude (decimal degrees) 
     col  2:  longitude (decimal degrees)
     col  3:  pressure (dbars)
     col  4:  temperature (C) 
     col  5:  salinity (psu) 
     col  6:  Sigma-t (kg/cubic meter)
     col  7:  potential temperature (C)
     col  8:  sigma-theta (kg/cubic meter) 
     col  9:  time (decimal year-day of 2000)
     col 10:  date and time (integral year, month, day, hour, minute, second)
     col 11:  flag
     col 12:  PAR (0-5 volts)
     col 13:  (violet filter) (volts)
     col 14:  (green filter)  (volts)
     col 15:  (green filter)  chlorophyl-a (micro g/liter)

#format_description:
 (e.g. description of the header, data, record layouts. Include
 units, scales, resolution, accuracy)

     no header; each line contains:

          unfiltered GPS latitude
          unfiltered GPS longitude
          pressure (dbars), accurate to better than plus/minus 2 db
          temperature (C), accurate to plus/minus 0.01 C
          salinity (psu), accurate to plus/minus 0.01 psu
          sigma-t (kg/cubic meter),
          potential temperature (C),
          sigmat-theta (kg/cubic meter),
          decimal year-day (of 2000),
          integral year, month, day, hour, minute, second 
          flag word (see format comments below for interpretation)
          PAR (volts), accurate to 0.001 volts
          fluorescence (violet filter) (volts), accurate to 0.001
          fluorescence (green  filter) (volts), accurate to 0.001
          (green filter)  chlorophyll-a (micro g/liter), accurate to 0.01 

 The FORTRAN format for each record is:
 format (f10.5,f11.5,f6.1,5f8.4,f10.5,1x,6i2.2,1x,i4.4,3f6.3, f7.2)


     "no data" values are indicated by 9-filling:
 
     temperature, salinity, sigma-t, potential temerature, or
     sigma-theta all use 99.9999 to indicate "no data"
     present for that record;

     flourescence uses 9.999 to indicate "no data"

     chlorophyll uses 999.99 to indicat "no data"

#format_publication:               *
(a reference for any document which defines/describes the data format(s))

#format_comments: 
 (any information about the format that will be useful, but is not
 elsewhere on this form)
 
 The variable at the end of each line (the flag word) indicates
 different items:

	the ones place:  

		0 indicates use of sensor pair 1 (T1, C1)
		1 indicates use of sensor pair 2 (T2, C2)

	the tens place:
  
		0 indicates gps fix for location
		1 indicates linear interpolation between gps fixes

	the hundreds place:  

		2 indicates top or bottom of seasoar cycle
		0 indicates otherwise

	the thousands place:  

		1 indicates collection of water sample from the 
		  5-m intake
		0 indicates otherwise
 
 The files all have the extension of ".dat2c".  All data are identified 
 by their maps (inshore,north,south,process,middle,offshore) and are 
 separated into their E-W lines (line1 through line12 overall, with
 intermediate lines indicate by line1a (between line1 and line2, etc) 
 or are identified as connecting lines (eg:  inshore.line2_1.dat2c 
 goes from the end of line2 to the start of line1 for the inshore map).
 Repeat coverage of the same line on the same map is given a decimal
 number (eg: process.line7.1.dat2c and process.line7.2.dat2c).

#misc_documentation:               *
#submittor_documentation:          *
 any textual information about the data, provided by the submitter,
 or investigator, (not NODC folks)  For example, in most cases this
 has been an ASCII text file accompanying the data on a DAT , diskette,
 or CDROM.  It may contain information which is redundant with other
 parts of this form.



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