*2022/06/22 09:50:17.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2008/08/19 06:19:00.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 16 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 45EAB315 NUMBER OF CHANNELS : 12 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 410 425 2 Bottle_Number n/a 1 16 3 Pressure:CTD dbar 10.7 999.6 4 Temperature:CTD deg_C_(ITS90) 3.0205 12.6847 5 Salinity:CTD PSS-78 32.4143 34.3576 6 Sigma-t:CTD kg/m^3 24.4779 27.3961 7 Transmissivity:CTD %/m 34 58.1 8 Oxygen:Dissolved:CTD:Volume ml/l 0.33 6.55 9 Oxygen:Dissolved:CTD:Mass µmol/kg 14.5 285.4 10 Fluorescence:CTD:Seapoint mg/m^3 0.9E-01 2.334 11 Salinity:Bottle PSS-78 32.4214 34.3648 12 Flag:Salinity:Bottle n/a $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 11 -99 ' ' 9 F R4 4 12 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2008-027 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 : P20 EVENT NUMBER : 65 LATITUDE : 49 34.07000 N ! (deg min) LONGITUDE : 138 40.18000 W ! (deg min) WATER DEPTH : 3946 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Samples Number 410 to 425: SAL:Bottle - analyzed on Portasal at sea. Analysis methods: ----------------- Salinity samples were collected in glass bottles and analyzed on a Guildline model 8400B Autosal at IOS or a Guildline Portasal 8410A at sea. Salinometers are standardized with IAPSO standard seawater. See file 2008-027_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 910 Colorimeter. For details on duplicates see file 2008-027_OXY.pdf. Nutrient samples were analyzed from frozen samples using an Astoria system following methods described in Barwell-Clarke and Whitney (1996). For details on nutrient duplicates and precision see file 2008-027_NUT.pdf. Chlorophyll samples were analyzed at sea using a Chemistry Turner 10 AU fluorometer which was calibrated on April 23, 2008 using pure chlorophyll a. Chlorophyll precision was determined by analyzing replicate samples drawn from one Niskin. For details on duplicates see file 2008-027_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 2008-027_DMS_report.pdf and for duplicates see 2008-027_DMS.pdf. DMSP-D and DMSP-T: Contamination in the blanks resulted in all data being discarded. For details on analysis see document 2008-027_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 2008-027_DIC.pdf, 2008-027_ALK.pdf, and 2008-027_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 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. 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: ---------------------- WARNING: There were problems with both salinometers. Variations in the performance of the Portasal were fairly random from day to day, while the Autosal results were fairly steady for the analysis of samples from the first half of the cruise, but there may have been a shift later and the analyst reported problems with stability near the end. Studying multiple bottles fired at a single stop suggests that the Autosal is good to ±0.005 and the scatter in COMPARE looks similar. For the Portasal the multiple bottle study suggests the data is good to ±0.008, but the larger comparison between bottles and CTD showed more scatter, ~ ±0.015. Duplicate studies suggest that the Portasal was reading lower than the Autosal by ~0.007 with a standard deviation of 0.003, but the wider comparisons of bottles and CTD data suggests the Portasal is lower than the Autosal by ~0.003. Given the uncertainty in the comparisons no attempt was made to make the Autosal and Portasal results match. 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 that had more severe flags attached for other reasons. Post-cruise calibrations show primary CTD salinity is within 0.001. For details on the processing see processing report: 2008-027-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-- ---11--- 12 !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl !le_ tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: :Bottle ag !Numb ~u vity: lved: solve CTD: ~o !er mb CTD CTD: d:CTD Seapoin tt ! er Volume :Mass t le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- *END OF HEADER 425 16 11.1 12.6847 32.4143 24.4779 34.1 6.54 285.0 2.327 32.4272 3 424 15 10.7 12.6826 32.4143 24.4783 34.1 6.55 285.4 2.325 32.4214 3 423 14 11.6 12.6839 32.4144 24.4782 34.1 6.51 283.6 2.332 32.4226 3 422 13 10.8 12.6830 32.4144 24.4783 34.0 6.53 284.8 2.334 32.4216 3 421 12 997.2 3.0257 34.3565 27.3948 58.1 0.34 14.6 0.091 34.3615 3 420 11 997.8 3.0238 34.3569 27.3953 58.1 0.34 14.6 0.091 34.3603 3 419 10 997.9 3.0233 34.3570 27.3954 58.1 0.34 14.6 0.091 34.3648 3 418 9 998.4 3.0227 34.3571 27.3955 58.1 0.33 14.5 0.091 34.3648 3 417 8 998.5 3.0224 34.3572 27.3957 58.1 0.34 14.6 0.090 34.3616 3 416 7 998.4 3.0223 34.3572 27.3957 58.1 0.34 14.6 0.091 34.3625 3 415 6 998.6 3.0220 34.3573 27.3958 58.1 0.34 14.6 0.091 34.3624 3 414 5 998.9 3.0214 34.3574 27.3959 58.1 0.34 14.6 0.090 34.3623 3 413 4 998.6 3.0211 34.3574 27.3959 58.0 0.34 14.7 0.090 34.3630 3 412 3 999.6 3.0205 34.3576 27.3961 58.1 0.34 14.7 0.091 34.3630 3 411 2 999.1 3.0206 34.3575 27.3961 58.1 0.34 14.7 0.091 34.3625 3 410 1 999.3 3.0206 34.3576 27.3961 58.1 0.34 14.7 0.091 34.3621 3