*2012/08/02 13:57:01.60 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2008/08/16 14:56:24.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 19 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 37A40651 NUMBER OF CHANNELS : 12 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 172 190 2 Bottle_Number n/a 1 19 3 Pressure:CTD dbar 9.6 1001.1 4 Temperature:CTD deg_C_(ITS90) 3.226 14.8537 5 Salinity:Practical:CTD PSS-78 32.4017 34.3641 6 Sigma-t:CTD kg/m^3 24.0273 27.3822 7 Transmissivity:CTD %/m 36.4 58.3 8 Oxygen:Dissolved:CTD:Volume ml/l 0.26 6.43 9 Oxygen:Dissolved:CTD:Mass µmol/kg 11.5 280.2 10 Fluorescence:CTD mg/m^3 0.8E-01 2.375 11 Salinity:Bottle PSS-78 32.405 34.3652 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 : 2008-27 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 : P12 EVENT NUMBER : 37 LATITUDE : 48 58.19000 N ! (deg min) LONGITUDE : 130 39.99000 W ! (deg min) WATER DEPTH : 3223 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Samples Number 172 to 190: Salinity:Bottle - analyzed on Portasal at sea. Sample Number 173: Salinity:Bottle - only two readings, differed by 0.0007. Sample Number 175: Salinity:Bottle - only two readings, differed by 0.0006. Sample Number 184: Salinity:Bottle - only two readings, differed by 0.0006. Sample Number 189: Salinity:Bottle - only two readings, differed by 0.0007. Analysis methods: ----------------- 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 see file 2008-27_CHL.pdf. 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 see file 2008-27_OXY.pdf. 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 2008-27_SAL.pdf for information on precision and note the warning below. 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 2008-27_NUT.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 2008-27_DMS_report.pdf. For details on duplicates see file 2008-27_DMS.pdf. Dissolved inorganic carbon (DIC) was determined using coulometric analysis. Total alkalinity (Alk) was determined by potentiometric titration. pH on the total hydrogen 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 2008-27_DIC.pdf, 2008-27_ALK.pdf, and 2008-27_pH.pdf respectively. 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. ********************************************************************************** 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 Salinity:Practical:CTD is within 0.001. ********************************************************************************** For details on the processing see processing report: 2008-27-proc.pdf $REMARKS Data quality is expressed with the following flags ---------------------------------------------------------------------------- 1 = Sample for this measurement was drawn from water bottle but not analyzed (not normally used). 2 = Acceptable measurement (not normally used). 3 = Questionable measurement (no problem observed in sampling or analysis, but value is not trusted, nonetheless; includes outlyers). 4 = Bad measurement (known problem with sampling or analysis, but not serious enough to completely discard the value). 5 = Not reported (lost sample; unredeemably bad measurement). 6 = Mean of replicate measurements. 7 = Manual chromatographic peak measurement. 8 = Irregular digital chromatographic peak integration. 9 = Sample not drawn for this measurement from this bottle (not normally used). ---------------------------------------------------------------------------- $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 missi :Disso n:Dis cence: :Bottle ag !Numb ~u Practica vity: lved: solve CTD ~o !er mb l:CTD CTD CTD: d:CTD tt ! er Volume :Mass le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- *END OF HEADER 190 19 9.9 14.7390 32.4068 24.0556 36.6 6.42 279.8 2.375 32.4060 3 189 18 9.9 14.7349 32.4081 24.0575 36.4 6.43 280.2 2.300 32.4050 3 188 17 9.6 14.8244 32.4057 24.0366 36.9 6.38 278.1 2.244 32.4055 3 187 16 9.9 14.8537 32.4017 24.0273 36.9 6.36 277.3 2.204 32.4056 3 186 15 152.9 6.2550 33.6230 26.4582 57.6 5.01 218.0 0.085 -99.0000 185 14 301.8 5.2543 33.8659 26.7726 57.7 2.84 123.5 0.081 -99.0000 184 13 751.1 3.6708 34.2348 27.2364 58.3 0.40 17.2 0.081 34.2341 3 183 12 1000.6 3.2273 34.3638 27.3820 58.2 0.27 11.6 0.081 34.3637 3 182 11 1001.0 3.2271 34.3639 27.3821 58.2 0.27 11.6 0.081 34.3636 3 181 10 1000.5 3.2276 34.3637 27.3819 58.2 0.27 11.6 0.082 34.3616 3 180 9 1000.5 3.2281 34.3638 27.3819 58.2 0.27 11.6 0.082 34.3640 3 179 8 1000.9 3.2260 34.3640 27.3822 58.2 0.26 11.5 0.080 34.3645 3 178 7 1000.4 3.2286 34.3636 27.3817 58.1 0.27 11.6 0.082 34.3644 3 177 6 1000.4 3.2314 34.3634 27.3813 58.2 0.27 11.6 0.082 34.3635 3 176 5 1001.0 3.2295 34.3636 27.3816 58.2 0.26 11.5 0.083 34.3633 3 175 4 1001.1 3.2278 34.3641 27.3822 58.2 0.27 11.6 0.081 34.3652 3 174 3 1000.5 3.2277 34.3638 27.3819 58.2 0.27 11.6 0.082 34.3643 3 173 2 999.4 3.2302 34.3635 27.3815 58.2 0.27 11.6 0.080 34.3645 3 172 1 999.3 3.2329 34.3631 27.3809 58.2 0.26 11.5 0.081 34.3633 3