*2012/08/02 13:57:03.28 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2008/08/22 15:28:49.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 24 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 7E36CC90 NUMBER OF CHANNELS : 26 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 553 576 2 Bottle_Number n/a 1 24 3 Pressure:CTD dbar 5.6 2000.3 4 Temperature:CTD deg_C_(ITS90) 1.9362 11.9763 5 Salinity:Practical:CTD PSS-78 32.4294 34.5828 6 Sigma-t:CTD kg/m^3 24.6238 27.6682 7 Transmissivity:CTD %/m 31.7 58.2 8 Oxygen:Dissolved:CTD:Volume ml/l 1.3 6.55 9 Oxygen:Dissolved:CTD:Mass µmol/kg 56.6 285.4 10 Fluorescence:CTD mg/m^3 0.9E-01 3.957 11 Salinity:Bottle PSS-78 32.437 34.5953 12 Flag:Salinity:Bottle n/a 13 Nitrate_plus_Nitrite:Bottle µmol/l 5.8 5.8 14 Flag:Nitrate_plus_Nitrite:Bottle n/a 15 Phosphate:Bottle µmol/l 0.82 0.82 16 Flag:Phosphate:Bottle n/a 17 Silicate:Bottle µmol/l 7.3 7.3 18 Flag:Silicate:Bottle n/a 19 Chlorophyll:Extracted:Bottle mg/m^3 -99 -99 20 Flag:Chlorophyll:Extracted:Bottle n/a 21 Carbon:Dissolved:Inorganic:Bottle µmol/kg 2387.09 2391.15 22 Flag:Carbon:Dissolved:Inorganic:Bottle n/a 23 Alkalinity:Total:Bottle µmol/kg 2419.11 2421.02 24 Flag:Alkalinity:Total:Bottle n/a 25 pH:Bottle n/a 7.3895 7.3928 26 Flag:pH: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 ' ' 13 -99 ' ' 6 F R4 1 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 7 F R4 2 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 6 F R4 1 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 7 F R4 2 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 8 F R4 2 22 0 ' ' 3 NQ C ' ' 23 -99 ' ' 8 F R4 2 24 0 ' ' 3 NQ C ' ' 25 -99 ' ' ' ' F9.4 R4 ' ' 26 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 : P25 EVENT NUMBER : 91 LATITUDE : 49 59.97000 N ! (deg min) LONGITUDE : 143 36.31000 W ! (deg min) WATER DEPTH : 4122 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Sample Number 555: Carbon:Dissolved:Inorganic:Bottle - large difference between replicates. Sample Number 557: Carbon:Dissolved:Inorganic:Bottle - different from replicate Niskins. Sample Number 558: pH:Bottle - large difference between replicates. Samples Number 565 to 576: Salinity:Bottle - due to flow rate change values may be shifted. Sample Number 575: Salinity:Bottle - this sample is suspect - came from leftover sample from the calibration cast. It read very close to its initial value yet this sample is much lower than all others from the calibration cast. Sample Number 576: Chlorophyll:Extracted:Bottle - problems with fluorometer. 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-- 24 ---25--- 26 !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl Nitra Fl Phosph Fl Silic Fl Chloro Fl Carbon: Fl Alkalin Fl pH: Fl !le_ tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: :Bottle ag te_pl ag ate: ag ate: ag phyll: ag Dissolv ag ity: ag Bottle ag !Numb ~u Practica vity: lved: solve CTD ~o ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o ed:Inor ~o Total: ~o ~o !er mb l:CTD CTD CTD: d:CTD tt ite:B tt tt e tt ted: tt ganic: tt Bottle tt tt ! er Volume :Mass le ottle le le le Bottle le Bottle le le le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- ----- -- ------ -- ----- -- ------ -- ------- -- ------- -- -------- -- *END OF HEADER 576 24 5.6 11.9763 32.4294 24.6238 31.7 6.55 285.4 3.957 32.4370 3 5.8 0.82 7.3 -99.00 5 -99.00 -99.00 -99.0000 575 23 1998.7 1.9375 34.5824 27.6677 58.2 1.30 56.7 0.092 34.5720 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 574 22 1999.1 1.9375 34.5824 27.6677 58.2 1.31 56.8 0.093 -99.0000 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 573 21 1999.4 1.9373 34.5825 27.6678 58.2 1.30 56.6 0.093 34.5811 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 572 20 1998.5 1.9376 34.5824 27.6677 58.2 1.31 56.7 0.093 34.5810 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 571 19 1998.3 1.9375 34.5824 27.6677 58.2 1.30 56.7 0.094 34.5832 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 570 18 1998.7 1.9373 34.5825 27.6678 58.2 1.31 56.8 0.093 34.5846 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 569 17 1998.5 1.9375 34.5824 27.6677 58.2 1.30 56.7 0.090 34.5822 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 568 16 1999.1 1.9374 34.5824 27.6678 58.2 1.31 56.7 0.092 34.5828 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 567 15 1999.3 1.9373 34.5825 27.6678 58.2 1.30 56.7 0.091 34.5826 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 566 14 1998.6 1.9373 34.5824 27.6678 58.2 1.31 56.8 0.092 34.5832 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 565 13 1998.6 1.9372 34.5825 27.6678 58.2 1.30 56.7 0.093 34.5840 3 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 564 12 1999.0 1.9371 34.5826 27.6679 58.2 1.30 56.7 0.092 34.5860 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 563 11 1998.8 1.9371 34.5825 27.6679 58.2 1.31 56.7 0.093 -99.0000 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 -99.0000 562 10 1998.3 1.9373 34.5823 27.6677 58.2 1.31 56.7 0.093 -99.0000 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 7.3928 6 561 9 1998.7 1.9372 34.5824 27.6678 58.2 1.31 56.7 0.092 -99.0000 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 7.3895 6 560 8 1999.8 1.9368 34.5825 27.6679 58.2 1.31 56.7 0.092 34.5916 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 7.3920 6 559 7 1999.9 1.9370 34.5825 27.6679 58.2 1.30 56.7 0.093 34.5900 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 7.3917 6 558 6 1998.4 1.9372 34.5824 27.6678 58.2 1.31 56.9 0.091 34.5953 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 7.3926 36 557 5 1998.6 1.9372 34.5824 27.6678 58.2 1.31 56.9 0.091 -99.0000 -99.0 -99.00 -99.0 -99.00 2387.09 36 2420.59 6 -99.0000 556 4 1999.6 1.9362 34.5826 27.6680 58.2 1.31 56.9 0.091 34.5869 -99.0 -99.00 -99.0 -99.00 2391.15 6 2419.11 6 -99.0000 555 3 2000.2 1.9367 34.5826 27.6680 58.2 1.31 56.7 0.093 -99.0000 -99.0 -99.00 -99.0 -99.00 2391.03 36 2420.84 6 -99.0000 554 2 2000.3 1.9363 34.5828 27.6682 58.2 1.30 56.7 0.091 34.5851 6 -99.0 -99.00 -99.0 -99.00 2391.05 6 2420.96 6 -99.0000 553 1 1999.7 1.9365 34.5827 27.6681 58.2 1.30 56.6 0.092 34.5866 -99.0 -99.00 -99.0 -99.00 2390.46 6 2421.02 6 -99.0000