*2012/07/23 16:06:33.13 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 1987/04/04 00:00:00.000 NUMBER OF RECORDS : 9 DATA DESCRIPTION : Bottle:Wire FILE TYPE : ASCII DATA TYPE : REAL*4 NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------------------------ ------------- -------------- -------------- 1 Depth metres 0 100 2 Phosphate umol/L 1.09 1.68 3 Nitrate_plus_Nitrite umol/L 10.9 20.7 4 Silicate umol/L 16.4 30.7 5 Chlorophyll:Extracted mg/m^3 0.78E-01 0.36 6 Production:Primary mgC/m^3/day 0.9E-01 8.61 7 Carbon:Particulate:Organic mg/m^3 24.4 60.8 8 Nitrogen:Particulate:Organic mg/m^3 3.2 10.4 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 6 F ' ' 0 2 -99 ' ' 7 F ' ' 2 3 -99 ' ' 6 F ' ' 1 4 -99 ' ' 6 F ' ' 1 5 -99 ' ' 8 F ' ' 3 6 -99 ' ' ' ' F7.2 R4 ' ' 7 -99 ' ' ' ' F6.1 R4 ' ' 8 -99 ' ' ' ' F6.1 R4 ' ' $END $REMARKS This file converted from OSAP file. Input data file used: ./nutr-etc-npac-1987-24c-05.sub01 $END *ADMINISTRATION MISSION : 1987-01 AGENCY : IOS, Ocean Physics Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Bellegay R. PLATFORM : Endeavour $REMARKS This is COCC cruise 87os2 and OSAP cruise 8701 $END *LOCATION GEOGRAPHIC AREA : NE Pacific Ocean, STATION : MP26 EVENT NUMBER : 9002 LATITUDE : 50 0.00000 N ! (deg min) LONGITUDE : 145 0.00000 W ! (deg min) *INSTRUMENT TYPE : Bottle MODEL : Niskin *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------------------- ------ ---------- -------- --------- --------- nutr_cast_linep_03.F 1.1.2 2002/06/27 10:41:02 9 9 CHGUNITS 1.3 2002/07/05 13:18:32 9 9 HDREDIT2 1.5 2002/07/23 13:50:37 ? ? CLEAN 3.7 2002/07/23 13:50:45 9 9 MERGE 3.3 2010/05/15 16:12:46 9 9 HDREDIT2 2.5.1 2010/05/15 16:40:59 ? ? CALIB 11.7 2012/07/23 16:06:33 9 9 $END $REMARKS CHANGE units: - No units changed CLEAN functions: - Reset #RECS, MIN & MAX values in header. - Delete Empty Channels: 0 deleted. - Set channel name post-colon letters to upper case. - Set last 4 characters of file name to event -The following MERGE parameters were used: 2010/05/15 16:12:46 2010/05/15 16:12:46 Merge Channel: Depth [metres] Merge Scheme Used: Add Secondary to Primary Overlap Scheme Used: Average Primary Channels to Include: ALL Secondary Channels to Include: Production:Primary, Carbon:Particulate:Organic, Nitrogen:Particulate:Organic Primary file : H:\John Pages Archive\1987-01\1987-01-9002.bot Secondary file: H:\John Pages Archive\1987-01\1987-01-9002.ios -HEADER EDITS: 2010/05/15 16:40:59 Applied edit header: H:\John Pages Archive\Prod_POC_PON_Methods.txt -CALIB parameters: 2012/07/23 16:06:33 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = P:\Cruise_Data_Processing\1987\1987-PO4-recal.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 2 Phosphate umol/L 10 -0.1000000E+00 0.1000000E+01 $END *COMMENTS 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 bottles 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 a Guildline Autosal 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 analyzed aboard ship by the use of a Technicon AutoAnalyzer using methods described in Barwell-Clarke and Whitney, 1996. All PO4 data were corrected in July 2012 to reduce values by 0.10 umol/L. This adjustment removes a bias in the Line P time series data caused by an incorrect zero (previous to 1988, we used demineralized water for the analytical baseline which incorrectly omitted the influence of salt on absorbance measurements). The amount of the correction was determined by both assessing the absorbance of a 3.2% NaCl solution and by observing the offset in the PO4 time-series at Station P. Chlorophyll concentration was estimated from fluorescence of aqueous acetone extracts from filtered samples. Analysis methods generally followed those described in Parsons et al. 1972, however there have been various modifications of filtering and extraction protocols. Contact data originator(s) for details specific to individual time periods. For Productivity, POC and PON methods see file in directory \\OSD_Data_Archive\Cruise_Data\Documents\ProdChemistryMethods\ . References: 1. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 2. Strickland, J.D.H., and T.R. Parsons. 1972. A Practical Handbook of Seawater Analysis. Bullettin 167 (2nd edition). Fisheries Research Board, Canada. 3. S. Tabata and R. M. Brown. 1994. Hydrographic/CTD Observations Made During Ocean Climate Monitoring Study: 1981-1991 - A Summary of Operational Phase of Study. Canadian Data Report of Hydrography and Ocean Sciences, No. 136, 42 pp. 4. J. Barwell-Clarke and F. Whitney. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ----------- -------- ---- ------ ------------ Phosphate umol/L 10 -99 () (-0.1 1) $END !--1-- --2--- --3-- --4-- ---5--- --6--- --7-- --8-- !Depth Phosph Nitra Silic Chlorop Produc Carbo Nitro ! ate te_ ate hyll: tion: n:Par gen:P ! plus_ Extract Primar ~cula ~cula ! Nitri ed y te:Or te:Or ! te ganic ganic !----- ------ ----- ----- ------- ------ ----- ----- *END OF HEADER 0. 1.11 11.0 16.4 0.340 7.14 60.0 9.8 2. 1.09 10.9 16.4 0.300 7.14 50.0 8.8 5. 1.11 10.9 16.4 0.340 7.07 60.0 10.2 10. 1.11 11.0 16.4 0.350 6.72 55.8 9.5 20. 1.10 10.9 16.4 0.340 8.61 56.6 8.8 30. 1.13 11.0 16.7 0.350 6.53 48.6 8.1 50. 1.12 10.9 16.7 0.360 2.62 60.8 9.9 70. 1.15 11.0 16.8 0.260 0.79 60.0 10.4 100. 1.68 20.7 30.7 0.078 0.09 24.4 3.2