*2012/08/02 13:57:04.26 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2008/08/28 03:00:23.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 6 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 373FECEB NUMBER OF CHANNELS : 21 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 732 737 2 Bottle_Number n/a 1 6 3 Pressure:CTD dbar 5.5 26.4 4 Temperature:CTD deg_C_(ITS90) 13.0366 13.0987 5 Salinity:Practical:CTD PSS-78 31.0779 31.1604 6 Sigma-t:CTD kg/m^3 23.3635 23.4393 7 Transmissivity:CTD %/m 27.8 38 8 Oxygen:Dissolved:CTD:Volume ml/l 6.07 6.1 9 Oxygen:Dissolved:CTD:Mass µmol/kg 264.8 266.1 10 Fluorescence:CTD mg/m^3 1.802 1.908 11 PAR:CTD µE/m^2/sec 0.6 2 12 Salinity:Bottle PSS-78 31.0865 31.1676 13 Flag:Salinity:Bottle n/a 14 Nitrate_plus_Nitrite:Bottle µmol/l 2.4 2.5 15 Flag:Nitrate_plus_Nitrite:Bottle n/a 16 Phosphate:Bottle µmol/l 0.59 0.61 17 Flag:Phosphate:Bottle n/a 18 Silicate:Bottle µmol/l 11 11 19 Flag:Silicate:Bottle n/a 20 Chlorophyll:Extracted:Bottle mg/m^3 2.69 3.03 21 Flag:Chlorophyll:Extracted: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 ' ' 7 F ' ' 1 12 -99 ' ' 9 F R4 4 13 0 ' ' 3 NQ C ' ' 14 -99 ' ' 6 F R4 1 15 0 ' ' 3 NQ C ' ' 16 -99 ' ' 7 F R4 2 17 0 ' ' 3 NQ C ' ' 18 -99 ' ' 6 F R4 1 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' 7 F R4 2 21 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 : M6 EVENT NUMBER : 145 LATITUDE : 51 42.73000 N ! (deg min) LONGITUDE : 128 7.47000 W ! (deg min) WATER DEPTH : 240 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Samples Number 733 and 736: Salinity:Bottle - analyzed on Portasal at sea. 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--- 13 --14- 15 --16-- 17 --18- 19 --20-- 21 !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores PAR: Salinity Fl Nitra Fl Phosph Fl Silic Fl Chloro Fl !le_ tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: CTD :Bottle ag te_pl ag ate: ag ate: ag phyll: ag !Numb ~u Practica vity: lved: solve CTD ~o ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o !er mb l:CTD CTD CTD: d:CTD tt ite:B tt tt e tt ted: tt ! er Volume :Mass le ottle le le le Bottle le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- ------ -------- -- ----- -- ------ -- ----- -- ------ -- *END OF HEADER 737 6 5.9 13.0955 31.0849 23.3695 36.2 6.08 265.2 1.802 1.7 -99.0000 -99.0 -99.00 -99.0 -99.00 736 5 5.5 13.0987 31.0779 23.3635 27.8 6.08 265.4 1.837 1.7 31.0865 3 2.4 0.59 11.0 3.03 735 4 5.5 13.0951 31.0854 23.3700 33.3 6.09 265.8 1.810 1.9 -99.0000 -99.0 -99.00 -99.0 -99.00 734 3 5.5 13.0952 31.0813 23.3668 37.7 6.10 266.1 1.804 2.0 -99.0000 -99.0 -99.00 -99.0 -99.00 733 2 26.4 13.0371 31.1601 23.4390 38.0 6.07 264.8 1.908 0.6 31.1676 3 2.5 0.61 11.0 2.69 732 1 25.4 13.0366 31.1604 23.4393 38.0 6.07 264.9 1.903 0.6 -99.0000 -99.0 -99.00 -99.0 -99.00