*2012/08/02 13:57:03.90 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2008/08/27 12:24:38.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 18 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 82545326 NUMBER OF CHANNELS : 23 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 669 686 2 Bottle_Number n/a 1 18 3 Pressure:CTD dbar 5.3 289.7 4 Temperature:CTD deg_C_(ITS90) 6.5899 10.3223 5 Salinity:Practical:CTD PSS-78 23.6997 33.2925 6 Sigma-t:CTD kg/m^3 18.1235 26.1542 7 Transmissivity:CTD %/m 4.8 50.8 8 Oxygen:Dissolved:CTD:Volume ml/l 2.38 5.69 9 Oxygen:Dissolved:CTD:Mass µmol/kg 103.6 249.5 10 Fluorescence:CTD mg/m^3 0.85E-01 0.462 11 PAR:CTD µE/m^2/sec 0.5 0.5 12 Salinity:Bottle PSS-78 25.2707 33.2819 13 Flag:Salinity:Bottle n/a 14 Oxygen:Dissolved:Bottle:Volume ml/l 2.473 5.477 15 Flag:Oxygen:Dissolved:Bottle n/a 16 Nitrate_plus_Nitrite:Bottle µmol/l 13.2 29.8 17 Flag:Nitrate_plus_Nitrite:Bottle n/a 18 Phosphate:Bottle µmol/l 1.3 2.68 19 Flag:Phosphate:Bottle n/a 20 Silicate:Bottle µmol/l 28.8 62.6 21 Flag:Silicate:Bottle n/a 22 Chlorophyll:Extracted:Bottle mg/m^3 0.7E-01 0.74 23 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 ' ' 8 F ' ' 3 15 0 ' ' 3 NQ C ' ' 16 -99 ' ' 6 F R4 1 17 0 ' ' 3 NQ C ' ' 18 -99 ' ' 7 F R4 2 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' 6 F R4 1 21 0 ' ' 3 NQ C ' ' 22 -99 ' ' 7 F R4 2 23 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 : Ri4 EVENT NUMBER : 135 LATITUDE : 51 38.87000 N ! (deg min) LONGITUDE : 127 26.70000 W ! (deg min) WATER DEPTH : 298 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Samples Number 670, 671, 686: Salinity:Bottle - analyzed on Portasal at sea. Sample Number 686: Salinity:Bottle - readings did not stablize. Sample Number 678: Nutrients:Bottle - no sample drawn. 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 --22-- 23 !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores PAR: Salinity Fl Oxygen: Fl Nitra Fl Phosph Fl Silic Fl Chloro Fl !le_ tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: CTD :Bottle ag Dissolv ag te_pl ag ate: ag ate: ag phyll: ag !Numb ~u Practica vity: lved: solve CTD ~o ed: ~o ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o !er mb l:CTD CTD CTD: d:CTD tt Bottle: tt ite:B tt tt e tt ted: tt ! er Volume :Mass le Volume le ottle le le le Bottle le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- ------ -------- -- ------- -- ----- -- ------ -- ----- -- ------ -- *END OF HEADER 686 18 5.3 10.3223 23.6997 18.1235 4.8 5.69 249.5 0.462 0.5 25.2707 4 5.477 13.2 1.30 29.0 0.74 685 17 10.0 9.3464 29.9983 23.1779 47.4 4.75 207.1 0.397 0.5 -99.0000 4.628 17.6 1.63 28.8 0.57 684 16 20.0 8.5659 30.6149 23.7769 49.1 4.36 190.3 0.294 0.5 -99.0000 4.291 20.5 1.86 32.8 0.44 683 15 20.0 8.5688 30.6104 23.7730 48.8 4.36 190.2 0.295 0.5 -99.0000 -99.000 -99.0 -99.00 -99.0 -99.00 682 14 30.0 8.4176 31.2955 24.3316 49.6 4.17 181.7 0.193 0.5 -99.0000 4.117 21.4 1.93 35.3 0.26 681 13 39.8 8.4669 31.5282 24.5067 50.2 4.16 181.4 0.165 0.5 -99.0000 -99.000 -99.0 -99.00 -99.0 -99.00 680 12 39.8 8.4602 31.5789 24.5474 50.1 4.15 180.7 0.162 0.5 -99.0000 4.163 21.4 1.93 35.6 0.19 6 679 11 50.0 8.3693 31.7034 24.6583 50.5 4.08 177.9 0.142 0.5 -99.0000 4.132 6 20.9 1.87 34.5 0.18 678 10 75.1 7.6612 32.1086 25.0776 50.0 3.80 165.5 0.104 0.5 -99.0000 3.749 -99.0 9 -99.00 9 -99.0 9 0.08 677 9 75.1 7.6612 32.1083 25.0774 50.1 3.80 165.6 0.103 0.5 -99.0000 -99.000 -99.0 -99.00 -99.0 -99.00 676 8 100.3 7.3676 32.6601 25.5518 49.9 2.91 126.7 0.099 0.5 -99.0000 2.793 27.2 2.41 52.7 0.07 675 7 125.2 6.8341 33.1259 25.9907 48.9 2.72 118.2 0.091 0.5 -99.0000 2.689 28.1 2.42 56.0 -99.00 674 6 149.8 6.7249 33.1912 26.0566 49.6 2.71 117.8 0.089 0.5 -99.0000 2.686 28.6 2.60 56.6 -99.00 673 5 149.8 6.7248 33.1911 26.0566 50.0 2.71 118.0 0.086 0.5 -99.0000 -99.000 -99.0 -99.00 -99.0 -99.00 672 4 175.0 6.6654 33.2344 26.0985 49.6 2.67 116.0 0.086 0.5 -99.0000 2.643 28.9 2.45 57.1 -99.00 671 3 199.9 6.6398 33.2535 26.1169 50.2 2.65 115.5 0.087 0.5 33.2569 3 2.669 29.1 6 2.46 6 57.1 6 -99.00 670 2 250.4 6.6031 33.2767 26.1400 50.8 2.55 110.9 0.085 0.5 33.2819 3 2.571 29.8 2.47 58.9 -99.00 669 1 289.7 6.5899 33.2925 26.1542 42.1 2.38 103.6 0.091 0.5 -99.0000 2.473 29.3 2.68 62.6 -99.00