*2022/11/03 11:10:28.78 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2015/02/16 18:15:51.000 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 : 99A9B215 NUMBER OF CHANNELS : 28 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 571 594 2 Bottle_Number n/a 1 24 3 Bottle:Firing_Sequence n/a 1 24 4 Pressure:CTD dbar 5.6 4025.1 5 Temperature:CTD deg_C_(ITS90) 1.5278 9.2538 6 Salinity:CTD PSS-78 32.4411 34.675 7 Sigma-t:CTD kg/m^3 25.1012 27.7719 8 Transmissivity:CTD %/m 59.7 67.5 9 Oxygen:Dissolved:CTD:Volume ml/l 0.34 6.52 10 Oxygen:Dissolved:CTD:Mass µmol/kg 14.6 284.1 11 Fluorescence:CTD:Seapoint mg/m^3 0.48E-01 1.026 12 Salinity:Bottle PSS-78 32.4413 34.6692 13 Flag:Salinity:Bottle n/a 14 Oxygen:Dissolved:Bottle:Volume ml/l 0.336 6.522 15 Oxygen:Dissolved:Bottle:Mass µmol/kg 14.6 284 16 Flag:Oxygen:Dissolved:Bottle n/a 17 Nitrate_plus_Nitrite:Bottle µmol/l 5.64 46.96 18 Flag:Nitrate_plus_Nitrite:Bottle n/a 19 Phosphate:Bottle µmol/l 0.721 3.226 20 Flag:Phosphate:Bottle n/a 21 Silicate:Bottle µmol/l 6.05 175.56 22 Flag:Silicate:Bottle n/a 23 Carbon:Dissolved:Inorganic:Bottle µmol/kg 2005.9 2389.5 24 Flag:Carbon:Dissolved:Inorganic:Bottle n/a 25 Alkalinity:Total:Bottle µmol/kg 2155.2 2431.2 26 Flag:Alkalinity:Total:Bottle n/a 27 pH:Bottle n/a 7.287 7.8278 28 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 ' ' 3 I I 0 4 -99 ' ' 7 F ' ' 1 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 9 F ' ' 4 7 -99 ' ' 9 F R4 4 8 -99 ' ' 6 F ' ' 1 9 -99 ' ' 7 F ' ' 2 10 -99 ' ' 6 F ' ' 1 11 -99 ' ' 8 F ' ' 3 12 -99 ' ' 9 F R4 4 13 0 ' ' 3 NQ C ' ' 14 -99 ' ' 8 F R4 3 15 -99 ' ' 6 F ' ' 1 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 8 F R4 3 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 7 F R4 2 22 0 ' ' 3 NQ C ' ' 23 -99 ' ' 8 F R4 2 24 0 ' ' 3 NQ C ' ' 25 -99 ' ' ' ' F7.1 R4 ' ' 26 0 ' ' 3 NQ C ' ' 27 -99 ' ' 8 F R4 4 28 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2015-001 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 : 67 LATITUDE : 49 34.06000 N ! (deg min) LONGITUDE : 138 40.07000 W ! (deg min) WATER DEPTH : 3966 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item *COMMENTS Samples Number 571, 572, 578, 580: pH:Bottle - samples analyzed at T < 24.78 appear to be biased slightly high. Sample Number 584: ALK:Bottle - value not reported. Sample Number 594: Bottle Number 24 - either the top or bottom cap did not seal; ALK:Bottle - low outlier and inconsistent with other CO2 system variables. Analysis methods: ----------------- Salinity samples were collected in 200 ml type ll glass bottles with disposable nylon inserts and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab at IOS on a Guildline 8400B Salinometer (S/N 68572) standardized with IAPSO standard seawater 10 to 22 days after collection. For details on duplicate analysis see file 2015-001_SAL.pdf. Oxygen samples were analyzed at sea using an automated Winkler titration system (Brinkmann Dosimat model 665 for titrations, Dosimat model 865 for dispensing standards and a PC950 Colorimeter controlled by AutoOxy software V3.4) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). For details on duplicate analysis see file 2015-001_OXY.pdf. Nutrient samples were collected in plastic tubes. One set of samples was collected and immediately quick frozen in aluminum blocks stored in -20 freezer. Another set of samples from 400 dbar and deeper (to be used for silicate analysis) was collected and stored at 4C in the dark. All samples were returned to IOS for analysis using an Astoria analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke and Whitney. For precision and duplicate analysis see file 2015-001_NUT.pdf. Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -80C prior to analysis. Samples were extracted in 90% acetone at -20C for 24 hours and analyzed on a Turner 10AU fluorometer calibrated annually with commercially pure chlorophyll a standard (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen et al 1965). Chlorophyll samples were analyzed at IOS ~4 weeks after the cruise. When duplicate samples were collected the average of two samples is reported. Variability is assessed as the CV (std dev / mean*100). For details on duplicates see file 2015-001_CHL.pdf. Flags and comments apply to chlorophyll values only. No flags or comments are assigned for Phaeopigment values. DMS samples were collected in 250 ml ground glass stoppered bottles and stored in a fridge, in the dark and removed one at a time before analysis. A sample was loaded onto the stripper and purged with UHP Nitrogen for 10 minutes at ~100 ml/min. The DMS was extracted from the water and absorbed on to a Tenax TA trap kept at -80C. The trap was subsequently desorbed at 100C (with a Dewar containing boiling water) onto a Chromasorb 330 column which eluted onto a Flame Photometric Detector (FPD). All samples were run as soon as possible after being collected. The minimum detectable level for DMS is 0.10 nmol/l, so “0” values should be interpreted as <0.10 nmol/l. For more details see file 2015-001_DMS_report.pdf and for duplicate analysis see 2015-001_DMS.pdf. DMSP-D: Approximately 20-75 ml of seawater were allowed to flow directly from the Niskin into a filtration funnel containing a 0.7 µm GF/F filter. The first 3.5 ml were collected in a polypropylene tube (15 ml) containing 50 µl of a 50% sulphuric acid solution. DMSP-T: 3.5 ml of seawater were collected directly from the Niskin into a polypropylene tube (15 ml) containing 50 µl of a 50% sulphuric acid solution (50%). DMSP-D and DMSP-T: Samples were stored in the dark at 4 degrees C for a minimum of 24 hours. They were hydrolized and analyzed later at the Institute of Ocean Sciences. The minimum detectable level for DMS is 0.1 nmol/l, so “0” values should be interpreted as <0.1 nmol/l. For more details see file 2015-001_DMS_report.pdf. Dissolved inorganic carbon (DIC) was determined using coulometric analysis of unfiltered samples. 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. HPLC samples were filtered onto 47mm 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 ~1 month 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. Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., and Strickland J.D.H. 1965. Fluorometric Determination of Chlorophyll. J.du Cons. Intl. Pour l’Epl. De la Mer. 30:3-15. 2. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 3. Culberson, C.H. 1991. Dissolved oxygen. WOCE Hydrographic Programme Operations and Methods (July 1991). 15pp. 4. Barwell-Clarke, J. and Whitney, F. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. 5. 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: ---------------------- Transmissivity, Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. For details on how the transmissivity calibration parameters were calculated see the document Transmissivity_Calculation.pdf. Oxygen:Dissolved:CTD was calibrated using the method described in the Sea-Bird Application Note #64-2 of June 2012 (Sea-Bird_64-2_Jun2012.pdf), except that a small offset in the fit was allowed. For details on the processing see the report: 2015-001-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--- 13 ---14-- --15- 16 --17-- 18 ---19-- 20 --21-- 22 ---23-- 24 --25-- 26 ---27-- 28 !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl Oxygen: Oxyge Fl Nitrat Fl Phospha Fl Silica Fl Carbon: Fl Alkali Fl pH: Fl !le_ tt tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: :Bottle ag Dissolv n:Dis ag e_plus ag te: ag te: ag Dissolv ag nity: ag Bottle ag !Numb ~u ~u vity: lved: solve CTD: ~o ed: ~ed:B ~o _Nitri ~o Bottle ~o Bottle ~o ed:Inor ~o Total: ~o ~o !er mb en CTD CTD: d:CTD Seapoin tt Bottle: ottle tt te: tt tt tt ganic: tt Bottle tt tt ! er ce Volume :Mass t le Volume :Mass le Bottle le le le Bottle le le le !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- ------- ----- -- ------ -- ------- -- ------ -- ------- -- ------ -- ------- -- *END OF HEADER 594 24 24 5.6 9.2534 32.4411 25.1012 59.7 6.52 284.1 0.824 32.4413 0 6.521 284.0 3 5.65 3 0.725 3 6.05 3 2009.80 3 2155.2 3 7.8276 3 593 23 23 11.1 9.2538 32.4412 25.1012 59.7 6.52 283.9 0.904 32.4414 0 6.514 283.7 6 5.65 0 0.727 0 6.05 0 2005.90 0 2168.5 0 7.8278 0 592 22 22 25.4 9.2504 32.4413 25.1018 59.7 6.51 283.4 0.992 32.4420 0 6.517 283.8 0 5.64 0 0.721 0 6.05 0 2009.60 0 2171.5 0 7.8258 0 591 21 21 51.8 9.1936 32.4444 25.1132 60.2 6.51 283.6 1.026 32.4449 0 6.522 284.0 0 5.78 6 0.735 6 6.15 6 2009.20 0 2168.3 0 7.8248 0 590 20 20 75.8 8.8572 32.5522 25.2499 63.2 6.33 275.8 0.515 32.5174 0 6.396 278.5 0 7.20 0 0.817 0 7.57 0 2014.50 0 2185.9 0 7.8132 0 589 19 19 102.2 6.9222 33.4413 26.2274 66.6 5.36 233.1 0.074 33.4306 0 5.364 233.4 0 20.21 0 1.488 0 25.34 0 2115.30 0 2219.1 0 7.6685 0 588 18 18 126.0 6.6841 33.7371 26.4924 66.6 4.61 200.6 0.061 33.7297 0 4.636 201.6 0 24.40 0 1.714 0 34.41 0 2157.00 0 2241.9 0 7.6133 0 587 17 17 152.0 6.0528 33.7855 26.6122 66.7 4.11 178.8 0.059 33.7841 0 4.130 179.6 6 28.01 0 1.954 0 43.33 0 2184.20 0 2256.1 0 7.5576 0 586 16 16 175.7 5.5388 33.7883 26.6775 66.7 3.76 163.5 0.060 33.7878 0 3.764 163.7 0 30.61 0 2.145 0 50.60 0 2205.30 0 2279.8 0 7.5113 0 585 15 15 202.9 5.1486 33.7935 26.7275 66.8 3.43 149.2 0.059 33.7932 0 3.445 149.8 0 32.62 0 2.287 0 56.23 0 2216.30 0 2256.2 0 7.4775 0 584 14 14 254.5 4.5459 33.7998 26.7999 66.8 2.86 124.3 0.061 33.7984 0 2.841 123.5 0 36.42 0 2.540 0 66.58 0 2242.70 0 -99.0 1 7.4107 6 583 13 13 302.1 4.1832 33.8252 26.8586 66.6 2.21 96.0 0.060 33.8225 0 2.222 96.6 6 39.74 0 2.739 0 75.37 0 2275.80 0 2274.9 0 7.3435 0 582 12 12 401.6 4.0916 33.9574 26.9732 67.2 1.39 60.3 0.061 33.9562 0 1.392 60.5 0 43.01 0 2.945 0 89.73 0 2304.60 0 2285.9 0 7.3056 0 581 11 11 601.8 3.8061 34.1623 27.1652 67.3 0.65 28.1 0.061 34.1630 0 0.686 29.8 0 44.76 0 3.098 0 112.34 0 2340.10 0 2317.9 0 7.2870 0 580 10 10 801.4 3.3852 34.2768 27.2976 67.3 0.45 19.4 0.062 34.2758 0 0.444 19.3 0 45.95 0 3.157 0 128.85 0 2363.90 0 2354.6 0 7.2929 3 579 9 9 1001.3 3.0098 34.3587 27.3980 67.4 0.37 15.9 0.062 34.3584 6 0.372 16.2 0 46.54 0 3.210 0 141.86 0 2379.40 0 2359.9 0 7.2905 0 578 8 8 1251.4 2.6731 34.4348 27.4888 67.4 0.34 14.6 0.061 34.4344 0 0.336 14.6 0 46.96 6 3.226 6 154.07 6 2389.50 0 2391.6 0 7.3014 3 577 7 7 1501.8 2.3971 34.4968 27.5620 67.5 0.48 20.7 0.060 34.4969 0 0.488 21.2 0 46.79 0 3.192 0 162.75 0 2388.90 0 2402.7 0 7.3149 0 576 6 6 2000.4 1.9670 34.5792 27.6629 67.5 1.20 52.3 0.055 34.5797 6 1.232 53.5 0 44.91 0 3.037 0 171.84 0 2385.60 0 2415.9 0 7.3850 0 575 5 5 2503.5 1.7446 34.6244 27.7163 67.5 1.85 80.5 0.052 34.6239 0 1.862 80.9 6 43.14 0 2.908 0 173.53 0 2368.80 0 2424.7 0 7.4449 0 574 4 4 3002.3 1.5818 34.6534 27.7517 67.5 2.49 108.1 0.050 34.6533 6 2.502 108.7 0 41.20 0 2.772 0 171.96 0 2362.00 0 2430.9 0 7.5008 0 573 3 3 3499.7 1.5278 34.6684 27.7677 67.5 2.85 123.8 0.049 34.6675 0 2.854 124.0 0 40.09 0 2.676 0 171.74 0 2358.80 0 2431.2 0 7.5332 6 572 2 2 3503.5 1.5282 34.6683 27.7676 67.5 2.84 123.5 0.049 34.6692 0 2.873 124.8 0 39.80 0 2.696 0 170.58 0 2358.90 0 2429.0 0 7.5354 3 571 1 1 4025.1 1.5438 34.6750 27.7719 67.0 2.96 128.6 0.048 -99.0000 0 2.982 129.5 0 39.50 0 2.664 0 175.56 0 2358.40 0 2431.0 0 7.5521 3