*2004/02/23 16:45:29.85 *IOS HEADER VERSION 1.4 2002/12/04 2002/12/04 *FILE START TIME : PST 1977/03/03 22:48:00.000 NUMBER OF RECORDS : 12 DATA DESCRIPTION : Bottle:Wire FILE TYPE : ASCII DATA TYPE : REAL*4 NUMBER OF CHANNELS : 7 $TABLE: CHANNELS ! No Name Units Minimum Maximum ! -- ----------------------- -------- -------------- -------------- 1 Depth metres 0 244 2 Temperature:Reversing 'deg C' 7.54 7.71 3 Salinity:Bottle ppt 30.456 30.992 4 Oxygen:Dissolved mL/L 6.229 6.344 5 Nitrate_plus_Nitrite umol/L 21.3 25.6 6 Silicate umol/L 40.6 49.1 7 Phosphate umol/L 1.89 2.1 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places ! -- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F ' ' 1 2 -99 ' ' 7 F ' ' 2 3 -99 ' ' 8 F ' ' 3 4 -99 ' ' 8 F ' ' 3 5 -99 ' ' 6 F R4 1 6 -99 ' ' 6 F R4 1 7 -99 ' ' 7 F R4 2 $END $REMARKS This file converted from 12 line header format. $END *ADMINISTRATION MISSION : 1977-11 AGENCY : IOS, Offshore Oceanography, Sidney, B.C. COUNTRY : Canada PROJECT : Inner Passage SCIENTIST : Thomson R.E. PLATFORM : Parizeau *LOCATION GEOGRAPHIC AREA : JOHNSTONE STRAIT STATION : J13 EVENT NUMBER : 23 LATITUDE : 50 33.30000 N ! (deg min) LONGITUDE : 126 47.10000 W ! (deg min) *INSTRUMENT TYPE : Bottle MODEL : Niskin (1.7 litre) *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- C12L_IOS 3.0 2001/12/12 09:45:20 15 15 REORDER 1.1 2001/12/12 09:48:20 ? ? CLEAN 3.0.1 2001/12/12 10:41:10 15 15 MERGE 3.1 2004/02/18 13:41:04 15 15 HDREDIT2 1.9 2004/02/18 14:11:00 ? ? CLEAN 4.5 2004/02/18 14:12:53 12 12 HDREDIT2 1.9 2004/02/23 16:45:29 ? ? $END $REMARKS CLEAN functions: - Reset #RECS, MIN & MAX values in header. - Customise the Data Column Headings at the end of the header. -The following MERGE parameters were used: Merge Channel: Depth Merge Scheme Used: Add Secondary to Primary Overlap Scheme Used: Keep Primary Primary Channels to Include: ALL Secondary Channels to Include: Nitrate_plus_Nitrite, Silicate, Phosphate Primary file : H:\New_Archive\1977-x\1977-11\77110023.che Secondary file: H:\New_Archive\1977-x\1977-11\77110023.nut CLEAN functions: - Reset #RECS, MIN & MAX values in header. - Change Pad Value to -99 in All Channels. - Delete Empty Channels: 0 deleted. - Set channel name post-colon letters to upper case. $END *COMMENTS ========================================================================= The crew did not realize that they were slightly north of station J13 and in only 295 metres of water, therefore the bottles from 300 metres down were probably laying on the bottom. The samples at these depths were removed from the file. ========================================================================= Collection methods: ------------------- Sea Water Temperature: - Reversing thermometers mounted on bottles. Salinity: - Collected in bottles. Dissolved Oxygen: - Collected in bottles. Nutrients - two plastic and two glass vials 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 250 m or greater so that depths could be calculated. The accuracy of protected reversing thermometers is believed to be +-0.02C. Salinity determinations were made at sea with a Guildline model 8400 lab salinometer. 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 for nitrate, phospahte and silicate were drawn unfiltered into two plastic and two glass vials and frozen in an upright position. Following the cruise samples were analyzed using a Technicon auto-analyzer under contract to Seakem Oceanography Ltd. The maximum duration between sample collection and analysis was six months. References: 1. R.E. Thomson, W.S. Hugget and L.S.C. Kuwahara. 1980. Data Record of Current Observations Volume VIII; Discovery Passage, Johnstone Strait, and Queen Charlotte Strait; Part 1 - Water Property Observations 1976, 1977, 1978,(1979). Institute of Ocean Sciences. 2. R.E. Thomson, W.S. Hugget and L.S.C. Kuwahara. 1980. Data Record of Current Observations Volume VIII; Discovery Passage, Johnstone Strait, and Queen Charlotte Strait; Part 2 - Appendices (listing of Water property data) Appendix A(1) - 1976 and 1977. Institute of Ocean Sciences. 3. R.E. Thomson, W.S. Hugget and L.S.C. Kuwahara. 1980. Data Record of Current Observations Volume VIII; Discovery Passage, Johnstone Strait, and Queen Charlotte Strait; Part 2 - Appendices (listing of Water property data) Appendices C,D,E - 1976,1977,1978,(1979). Institute of Ocean Sciences. !--1--- --2--- ---3--- ---4--- --5-- --6-- --7--- !Depth Temper Salinit Oxygen: Nitra Silic Phosph ! ature: y: Dissolv te_ ate ate ! Revers Bottle ed plus_ ! ing Nitri ! te !------ ------ ------- ------- ----- ----- ------ *END OF HEADER 0.0 7.54 30.456 6.269 24.6 47.1 1.99 10.0 7.57 30.466 6.236 25.6 49.1 2.10 20.0 7.58 30.485 6.240 24.0 46.6 1.92 30.0 7.60 30.542 6.236 23.7 46.4 2.00 50.0 7.60 30.581 6.238 23.1 44.2 2.01 75.0 7.64 30.667 6.306 23.5 44.7 1.95 100.0 7.63 -99.000 6.272 22.1 41.3 1.89 125.0 7.61 30.771 6.286 23.4 45.9 1.92 149.0 7.65 30.794 6.271 22.3 42.3 1.95 174.0 7.68 30.911 6.276 21.3 40.6 1.97 198.0 7.68 30.943 6.344 21.8 41.0 2.02 244.0 7.71 30.992 6.229 22.2 41.6 1.90