*2021/11/29 09:16:44.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2012/05/25 13:33:56.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 20 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 7CF3DB1 NUMBER OF CHANNELS : 13 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 160 179 2 Bottle_Number n/a 1 20 3 Bottle:Firing_Sequence n/a 1 22 4 Pressure:CTD dbar 1.8 104.9 5 Temperature:CTD deg_C_(ITS90) 8.1387 10.6944 6 Salinity:CTD PSS-78 31.7228 33.1288 7 Sigma-t:CTD kg/m^3 24.3036 25.81 8 Transmissivity:CTD %/m 60.9 64.7 9 Oxygen:Dissolved:CTD:Volume ml/l 4.43 6.9 10 Oxygen:Dissolved:CTD:Mass µmol/kg 192.7 300.8 11 Fluorescence:CTD:Seapoint mg/m^3 0.109 0.604 12 Fluorescence:CTD:Wetlabs mg/m^3 0.259 1.091 13 PAR:CTD µE/m^2/sec 0 411.6 $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 ' ' 3 I I 0 4 -99 ' ' 7 F ' ' 1 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 9 F ' ' 4 7 -99 ' ' 9 F R4 4 8 -99 ' ' 6 F R4 1 9 -99 ' ' 7 F ' ' 2 10 -99 ' ' 6 F ' ' 1 11 -99 ' ' 8 F R4 3 12 -99 ' ' 8 F ' ' 3 13 -99 ' ' 7 F ' ' 1 $END *ADMINISTRATION MISSION : 2012-012 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 : 18 LATITUDE : 48 39.00000 N ! (deg min) LONGITUDE : 126 40.03000 W ! (deg min) WATER DEPTH : 1318 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item *COMMENTS Analysis methods: ----------------- Salinity samples were collected in 200 ml type ll glass bottles with reusable silicone inserts supplied by Xiamen Cuten Accessories Industry Limited and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab on a Guildline 8400B Salinometer (S/N 68572) standardized with IAPSO standard seawater within 2 months after collection. The duplicate analysis is in file 2012-012_SAL.pdf. Oxygen samples were analyzed at sea on an automated Winkler titration system (Brinkmann Dosimat model 765 and a PC950 Colorimeter controlled by AutoOxy software V3.4) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). For details of the duplicate analysis see file 2012-012_OXY.pdf. Nutrient samples were collected in plastic tubes and analyzed at sea, except for the repeated P4 inbound samples. The repeated P4 inbound samples were frozen, or in the case of deep Silicate (400 dbar and deeper) stored cool, and analyzed at IOS. All samples were analyzed using an Astoria analyzer following methods described in Barwell-Clarke and Whitney (1996). See file 2012-012_NUT.pdf for duplicates and precision information. NOTE: July 2013: A correction has been applied to Nitrate_plus_Nitrite:Bottle and Phosphate:Bottle data from deep-water cruises analyzed at IOS between 2009 and 2012. For details see the report: Corrections_to_Nitrate_and_Phosphate_Data_2009-2012.pdf. Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -20C prior to analysis. Samples were extracted in 90% acetone at -20C for 24 hours and analyzed on a Turner 10AU fluorometer which is calibrated annually with commercially pure chlorophyll a (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen et al 1965). Chlorophyll samples were analyzed on board ship in a controlled temperature lab. When duplicate samples were collected the average of two samples is reported. Variability is assessed as the CV% (std dev / mean*100). For details on duplicate samples see file 2012-012_CHL.pdf. Phaeopigment data are provided for information only and no quality flags are assigned to them. 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 2012-012_DMS_Report.pdf and for duplicates see file 2012-012_DMS.pdf. The minimum detectable level for DMSP-D:Bottle is 0.1 nM, so “0” values should be interpreted as <0.1. The minimum detectable level for DMSP-T:Bottle in this file is 0.1 nM from 0 to 20 dbar, and 1 nM from 20 to 200 dbar, so “0” values should be interpreted as < those values. For details on analysis see document 2012-012_DMS_report.pdf. HPLC samples were filtered onto 47mm 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 ~4 months 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. Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., and Strickland J.D.H. 1965. Fluorometric Determination of Chlorophyll. J.du Cons. Intl. Pour l’Epl. De la Mer. 30:3-15. 2. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 3. Culberson, C.H. 1991. Dissolved oxygen. WOCE Hydrographic Programme Operations and Methods (July 1991). 15pp. 4. Barwell-Clarke, J. and Whitney, F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. 5. 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: ---------------------- Fluorescence, Transmissivity and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. For details on how the transmissivity calibration parameters were calculated see the document Transmissivity_Calculation.pdf. The Oxygen:Dissolved:CTD calibration was done using the method described in the Sea-Bird Application Note #64-2 (Sea-Bird_64-2_Jun2012.pdf). For details on the processing see processing report: 2012-012-proc.pdf NOTE: July 2013: A correction has been applied to Nitrate_plus_Nitrite:Bottle and Phosphate:Bottle data from deep-water cruises analyzed at IOS between 2009 and 2012. For details see the report: Corrections_to_Nitrate_and_Phosphate_Data_2009-2012.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- ---11-- ---12-- --13-- !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Fluores PAR: !le_ tt tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: cence: CTD !Numb ~u ~u vity: lved: solve CTD: CTD: !er mb en CTD CTD: d:CTD Seapoin Wetlabs ! er ce Volume :Mass t !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- ------- ------ *END OF HEADER 179 20 20 3.5 10.6917 31.7239 24.3049 63.5 6.73 293.5 0.173 0.383 240.9 178 19 19 3.6 10.6919 31.7237 24.3047 63.5 6.73 293.4 0.171 0.415 283.4 177 18 18 3.4 10.6899 31.7247 24.3058 63.7 6.74 293.8 0.169 0.383 218.0 176 17 15 14.1 10.5418 31.8073 24.3954 63.7 6.81 296.8 0.160 0.370 46.1 175 16 13 18.9 10.2243 31.8717 24.4990 63.5 6.90 300.6 0.177 0.556 25.3 174 15 10 26.3 9.7893 31.9800 24.6551 64.1 6.86 298.8 0.156 1.003 12.1 173 14 8 33.4 9.1337 32.3140 25.0206 64.2 6.31 274.9 0.158 1.057 5.8 172 13 5 73.3 8.2779 32.6580 25.4202 63.2 5.98 260.5 0.292 0.339 0.3 171 12 3 104.6 8.1395 33.1278 25.8091 63.1 4.43 192.7 0.272 0.271 0.0 170 11 22 2.3 10.6944 31.7228 24.3036 63.2 6.73 293.4 0.254 0.371 327.8 169 10 21 1.8 10.6931 31.7234 24.3043 60.9 6.72 293.1 0.515 0.363 411.6 168 9 14 14.2 10.5634 31.8015 24.3872 61.3 6.80 296.4 0.533 0.352 42.7 167 8 12 19.0 10.2269 31.8707 24.4978 61.7 6.90 300.8 0.604 0.585 26.5 166 7 11 19.0 10.2276 31.8707 24.4977 61.5 6.90 300.6 0.561 0.604 24.9 165 6 9 26.2 9.7975 31.9751 24.6500 61.9 6.86 299.0 0.573 1.054 12.0 164 5 7 33.3 9.1301 32.3129 25.0203 64.7 6.31 274.9 0.165 1.071 5.9 163 4 6 33.4 9.1263 32.3174 25.0244 64.7 6.31 274.8 0.172 1.091 5.9 162 3 4 73.2 8.2745 32.6646 25.4258 63.8 5.94 258.8 0.132 0.361 0.3 161 2 2 104.6 8.1387 33.1288 25.8100 63.6 4.43 192.8 0.109 0.259 0.0 160 1 1 104.9 8.1412 33.1234 25.8054 63.7 4.46 194.1 0.109 0.272 0.0