*2022/07/25 15:16:12.09 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2008/06/02 03:56:12.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 24 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : B0A97669 NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 99 122 2 Bottle_Number n/a 1 24 3 Pressure:CTD dbar 5 18.3 4 Temperature:CTD deg_C_(ITS90) 9.2113 11.6104 5 Salinity:CTD PSS-78 31.957 32.2229 6 Sigma-t:CTD kg/m^3 24.3263 24.9309 7 Transmissivity:CTD %/m 33.8 43.3 8 Oxygen:Dissolved:CTD:Volume ml/l 7.36 7.38 9 Oxygen:Dissolved:CTD:Mass µmol/kg 320.6 321.3 10 Fluorescence:CTD:Seapoint mg/m^3 1.726 2.603 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I 0 2 -99 ' ' 3 I I 0 3 -99 ' ' 7 F ' ' 1 4 -99 ' ' 9 F ' ' 4 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 9 F R4 4 7 -99 ' ' 6 F ' ' 1 8 -99 ' ' 7 F ' ' 2 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 8 F ' ' 3 $END *ADMINISTRATION MISSION : 2008-026 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : P4 EVENT NUMBER : 12 LATITUDE : 48 39.06000 N ! (deg min) LONGITUDE : 126 40.11000 W ! (deg min) WATER DEPTH : 1317 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Analysis methods: ----------------- Salinity samples were collected in glass bottles and analyzed on a Guildline model 8400B Autosal or a Guildline Portasal 8410A. Salinometers are standardized with IAPSO standard seawater. See file 2008-026_SAL.pdf for information on duplicates and note the warning below. Oxygen samples were analyzed on an automated Winkler titration system following the procedures of Carpenter (1965). Samples were analyzed at sea using an automated titration system consisting of a Brinkman Dosimat (model 665) and a PC 900 Colorimeter. For details on duplicates see file 2008-026_OXY.pdf. Nutrient samples were collected in plastic tubes and analyzed fresh at sea using a Technicon AAII autoanalyzer following methods described in Barwell-Clarke and Whitney (1996). For details on nutrient duplicates and precision see file 2008-026_NUT.pdf. Chlorophyll samples were analyzed at sea using a Chemistry Turner Designs fluorometer which was calibrated in May 2007 using pure chlorophyll a. Chlorophyll precision was determined by analyzing replicate samples drawn from one Niskin. For details on duplicates see file 2008-026_CHL.pdf. The minimum detectable level for DMS is 0.10 nM, so “0” values should be interpreted as <0.10. For details on the collection and analysis of the DMS data see file 2008-026_DMS_report.pdf and for duplicates see 2008-026_DMS.pdf. DMSP-D and DMSP-T: Contamination in the blanks resulted in all data being discarded. For details on analysis see document 2008-026_DMS_report.pdf. Dissolved inorganic carbon (DIC) was determined using coulometric analysis. Total alkalinity (Alk) was determined by potentiometric titration. pH on the total hydrogren ion concentration scale was determined photometrically and is reported at 25C and surface pressure. For duplicates and precision of DIC, ALK and pH samples see files 2008-026_DIC.pdf, 2008-026_ALK.pdf, and 2008-026_pH.pdf respectively. HPLC samples were filtered onto 25mm GF/F filters and stored at -80C prior to analysis. Samples were extracted in 95% methanol at -20C for 24 hours and analyzed on a WATERS 2695 HPLC separations system as detailed in Nemcek and Pena, 2014. Analysis was performed ~2 weeks after collection. The average of two samples is reported. Variability is assessed as the %CV (std dev/mean*100) for duplicate pairs. All pigments below the limit of detection (LOD) are assigned a zero value. TChl-a is the sum of Chl-a, DVchl-a, Chlide-a and Me-chlide. References: 1. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 2. 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. 3. Nemcek, N. and Peña, M.A. 2014. Institute of Ocean Sciences Protocols for Phytoplankton Pigment Analysis by HPLC. Can. Tech. Rep. Fish. Aquat. Sci. 3117: x + 80 p. Data Processing Notes: ---------------------- The salinity analyses done on a Portasal salinometer at sea are considered unreliable. Many duplicate samples were run using an Autosal at IOS and the Portasal. The results showed that the Portasal read much lower than the Autosal for those samples analyzed on the Portasal on June 5th. For other days the Portasal was low by an average of 0.0016 but there was a lot of noise in the comparison with many values within 0.001 of the Autosal, while others looked unstable. Autosal values have been selected for Salinity:Bottle where possible. Where there are no Autosal values, the Portasal values were used, but were all flagged "3", except for those from June 5th which have been flagged "4". For details on the processing see processing report: 2008-026-proc.pdf $REMARKS Quality flags have the following significance: ---------------------------------------------------------------------------------- 0 = Acceptable measurement with no header comment. 1 = Sample for this measurement was collected but not analyzed. Sample lost. 2 = Acceptable measurement with header comment. 3 = Questionable measurement (probably good). 4 = Poor measurement (probably bad). 5 = Measurement not reported (bad). 6 = Mean of replicate measurements. 7 = Manual chromatographic peak measurement. 8 = Irregular digital chromatographic peak integration. 9 = Sample was planned for this measurement from this bottle but was not collected. ----------------------------------------------------------------------------------- $END !-1-- 2- --3--- ---4---- ---5---- ---6---- --7-- --8--- --9-- ---10-- !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores !le_ tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: !Numb ~u vity: lved: solve CTD: !er mb CTD CTD: d:CTD Seapoin ! er Volume :Mass t !---- -- ------ -------- -------- -------- ----- ------ ----- ------- *END OF HEADER 122 24 5.1 11.6017 31.9660 24.3327 34.7 7.36 320.9 1.734 121 23 5.1 11.6024 31.9658 24.3325 34.7 7.37 321.1 1.729 120 22 5.0 11.5989 31.9570 24.3263 34.0 7.37 321.2 1.726 119 21 5.2 11.6021 31.9659 24.3326 33.8 7.37 321.3 1.755 118 20 5.0 11.6101 31.9644 24.3300 34.4 7.37 321.3 1.758 117 19 5.1 11.6064 31.9649 24.3310 33.9 7.37 321.3 1.763 116 18 5.2 11.6074 31.9646 24.3306 34.3 7.37 321.1 1.766 115 17 5.1 11.6089 31.9643 24.3301 34.1 7.36 320.8 1.767 114 16 5.0 11.6069 31.9643 24.3305 34.4 7.36 320.7 1.730 113 15 5.1 11.6104 31.9640 24.3296 34.4 7.36 321.0 1.736 112 14 5.2 11.6054 31.9649 24.3312 34.6 7.37 321.3 1.742 111 13 5.0 11.5863 31.9674 24.3366 34.5 7.36 321.0 1.739 110 12 18.2 9.2662 32.2229 24.9286 43.1 7.38 321.3 2.513 109 11 18.3 9.2711 32.2213 24.9266 43.2 7.38 321.3 2.530 108 10 18.3 9.2645 32.2215 24.9278 43.2 7.38 321.2 2.538 107 9 18.2 9.2598 32.2195 24.9269 43.2 7.37 321.1 2.537 106 8 18.2 9.2590 32.2198 24.9273 43.3 7.37 321.2 2.576 105 7 18.3 9.2608 32.2201 24.9272 43.3 7.37 321.2 2.570 104 6 18.3 9.2597 32.2211 24.9282 43.3 7.37 321.0 2.576 103 5 18.2 9.2501 32.2197 24.9286 43.2 7.37 321.1 2.570 102 4 18.3 9.2318 32.2186 24.9306 43.1 7.37 321.0 2.566 101 3 18.3 9.2196 32.2165 24.9309 43.0 7.37 321.1 2.598 100 2 18.2 9.2165 32.2158 24.9308 43.2 7.36 320.8 2.603 99 1 18.2 9.2113 32.2148 24.9309 43.1 7.36 320.6 2.603