*2011/02/17 16:07:52.57
*IOS HEADER VERSION 1.8  2007/05/25 2007/05/25

*FILE
    START TIME          : UTC 1977/07/20 00:00:00.000
    NUMBER OF RECORDS   : 6
    DATA DESCRIPTION    : Bottle:Wire
    FILE TYPE           : ASCII
    NUMBER OF CHANNELS  : 2

    $TABLE: CHANNELS
    ! No Name      Units    Minimum        Maximum
    !--- --------- -------- -------------- --------------
       1 Depth     metres   0              500
       2 Tritium   TU81N    1.06           6.04
    $END

    $TABLE: CHANNEL DETAIL
    ! No  Pad   Start  Width  Format  Type  Decimal_Places
    !---  ----  -----  -----  ------  ----  --------------
       1  -99   ' '    ' '    F7.1    R4    ' '
       2  -99   ' '    ' '    F7.2    R4    ' '
    $END

*ADMINISTRATION
    MISSION             : 1977-05
    AGENCY              : IOS, Offshore Oceanography, Sidney, B.C.
    COUNTRY             : Canada
    PROJECT             : Station P
    SCIENTIST           : Canning B.
    PLATFORM            : Vancouver

*LOCATION
    EVENT NUMBER        : 9001
    LATITUDE            :  50   0.00000 N  ! (deg min)
    LONGITUDE           : 145   0.00000 W  ! (deg min)

*HISTORY

    $TABLE: PROGRAMS
    !   Name     Vers   Date       Time     Recs In   Recs Out
    !   -------- ------ ---------- -------- --------- ---------
        SPRD2IS  4.5    2011/02/17 16:05:59         6         6
        HDREDIT2 2.5.1  2011/02/17 16:07:17 ?         ?
        HDREDIT2 2.5.1  2011/02/17 16:07:52 ?         ?
    $END
    $REMARKS
        -HEADER EDITS: 2011/02/17 16:07:17
         Applied edit header: O:\Data Processing\Header Comments\Work\1977-05.TXT
        -HEADER EDITS: 2011/02/17 16:07:52
         Applied edit header: H:\John Pages Archive\Tritium data\Tritium.txt
    $END

*INSTRUMENT
    TYPE                : Bottle
    MODEL               : Niskin

*COMMENTS

    Contents:
      Bottle data from Weathership program using ships Vancouver & Quadra from
      Vancouver Island, BC, Canada to Ocean Weather Station P [50N x 145W].

    Sample collection methods:
    --------------------------
      Sea Water Temperature:
      - Reversing thermometers mounted on bottles.
      Salinity:
      - Collected in bottles.
      Dissolved Oxygen:
      - Collected in bottles.
      Reactive Nutrients (Phosphate, nitrate, silicate):
      - Collected in Van Dorn samplers (productivity casts) or bottles
        (hydrographic casts).
      Biological and Productivity:
      - Collected in Van Dorn samplers.

    Analyzes methods:
    -------------------------
      Temperatures at depth were measured by deep-sea reversing thermometers of
      German (Richter and Wiese) and/or Japanese (Yoshimo Keiki Co.) manufacture.
      Two protected thermometers were used on all bottles, and one unprotected
      thermometer was used on each bottle at depths of 300 m or greater. The
      accuracy of protected reversing thermometers is believed to be +-0.02C.

      Salinity determinations were made at sea with either a Bissett-Berman Model
      6220 lab salinometer or an Auto-Lab Model 601 MK III inductive salinometer.
      Accuracy using duplicate determinations is estimated to be +-0.003 ppt.

      Depth determinations were made using the "depth difference" method
      described in the U.S.N. Hydrographic Office Publication No. 607 (1955).
      Depth estimates have an approximate accuracy of +-5 m for depths less than
      1000 m, and +-0.5% of depth for depths greater than 1000 m.

      The dissolved oxygen analyses were done in the shipboard laboratory by a
      modified Winkler method (Carpenter, 1965).

      Nutrient samples were frozen for analyzes ashore.

      Chlorophyll and nutrients were analyzed using methods from Bulletin 125
      Fisheries Research Board of Canada 1960 "A manual of seawater analysis"
      J.D.H. Strickland and T.R. Parsons, and subsequent editions.

      Tritium data reported in Data Release #81-12 from the Tritium Laboratory at
      the University of Miami, March 18, 1981. Data reported in TU18N values which
      are the TU values on the "NEW" tritium scale and corrected for decay to the
      reference date 1981/01/01. Further information available in the Data Release.
    .
      References:
      1. 1977. Oceanographic Observations at Ocean Station P (50 N, 145 W).
      Volume 83. June 17 - August 3, 1977. Pacific Marine Science
      Report 77-24.
      2. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the
      Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143.
      3. Strickland, J.D.H., and T.R. Parsons. 1968. A Practical Handbook of
      Seawater Analysis. Bullettin 167. Fisheries Research Board, Canada.
      4. Strickland, J.D.H., and T.R. Parsons. 1972. A Practical Handbook of
      Seawater Analysis. Bullettin 167 (2nd edition). Fisheries Research
      Board, Canada.
      5. Above references @Institute of Ocean Sciences Library, Sidney, B.C.
!--1--- --2---
!Depth  Tritiu
!       m     
!------ ------
*END OF HEADER
    0.0   4.57
   25.0   5.59
   50.0   6.04
  120.0   5.62
  300.0   3.23
  500.0   1.06