*2022/11/21 14:38:46.30 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/02/14 09:31:15.000 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 : 49418CEF NUMBER OF CHANNELS : 28 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 397 420 2 Bottle_Number n/a 1 24 3 Bottle:Firing_Sequence n/a 1 24 4 Pressure:CTD dbar 5.4 4025.2 5 Temperature:CTD deg_C_(ITS90) 1.5381 7.9912 6 Salinity:CTD PSS-78 32.4923 34.6756 7 Sigma-t:CTD kg/m^3 25.3324 27.7723 8 Transmissivity:CTD %/m 57.3 61.9 9 Oxygen:Dissolved:CTD:Volume ml/l 0.34 6.69 10 Oxygen:Dissolved:CTD:Mass µmol/kg 14.7 291.1 11 Fluorescence:CTD:Seapoint mg/m^3 0.4E-01 0.79 12 Salinity:Bottle PSS-78 32.4966 34.6673 13 Flag:Salinity:Bottle n/a 14 Oxygen:Dissolved:Bottle:Volume ml/l 0.334 6.63 15 Oxygen:Dissolved:Bottle:Mass µmol/kg 14.5 288.7 16 Flag:Oxygen:Dissolved:Bottle n/a 17 Nitrate_plus_Nitrite:Bottle µmol/l 7.82 46.11 18 Flag:Nitrate_plus_Nitrite:Bottle n/a 19 Phosphate:Bottle µmol/l 0.867 3.164 20 Flag:Phosphate:Bottle n/a 21 Silicate:Bottle µmol/l 8.2 176.61 22 Flag:Silicate:Bottle n/a 23 Carbon:Dissolved:Inorganic:Bottle µmol/kg 2016 2391.7 24 Flag:Carbon:Dissolved:Inorganic:Bottle n/a 25 Alkalinity:Total:Bottle µmol/kg 2166.9 2432.6 26 Flag:Alkalinity:Total:Bottle n/a 27 pH:Bottle n/a 7.2828 7.803 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 ' ' 5 I I 0 3 -99 ' ' 5 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 -99 ' ' 3 NQ C ' ' 14 -99 ' ' 8 F R4 3 15 -99 ' ' 6 F ' ' 1 16 -99 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 -99 ' ' 3 NQ C ' ' 19 -99 ' ' 8 F R4 3 20 -99 ' ' 3 NQ C ' ' 21 -99 ' ' 7 F R4 2 22 -99 ' ' 3 NQ C ' ' 23 -99 ' ' ' ' F7.1 R4 ' ' 24 0 ' ' 3 NQ C ' ' 25 -99 ' ' ' ' F7.1 R4 ' ' 26 0 ' ' 3 NQ C ' ' 27 -99 ' ' ' ' F8.4 R4 ' ' 28 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2016-001 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 : 57 LATITUDE : 49 34.03000 N ! (deg min) LONGITUDE : 138 39.92000 W ! (deg min) WATER DEPTH : 3932 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0585 LOCATION : Mid-ship ! custom item *COMMENTS Sample Number 397: OXY:Bottle - sample over-titrated and voltage required adjustment. Sample Number 403: OXY:Bottle - bubble in flask of one duplicate; pH:Bottle - value not reported. Sample Number 407: OXY:Bottle - sample over-titrated. Sample Number 416: OXY:Bottle - replicate outliers. Sample Number 418: Bottle Number 22 - bottom end cap leaking. 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 12 to 21 days after collection. For details on duplicate analysis see file 2016-001_SAL.pdf. Oxygen samples were analyzed at sea using an automated Winkler titration system (Metrohm Dosimat model 876 and a UV light source and detector with a 365nm filter controlled by LV02_876 software designed and constructed by Scripps Institution of Oceanography) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). For details on duplicate analysis see file 2016-001_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 2016-001_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 ~7 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). Precision Statement: Chlorophyll values ranged from 0.04-1.14 mg/m^3. Average CV for this cruise was an excellent 2.82% with 1 out of 58 duplicate pairs having a CV > 15% and 0 out of 58 duplicate pairs having a CV > 50% . Our average dataset CV is 2.83% for 2013 - 2015 so the overall quality of this dataset is excellent. For details on duplicates see file 2016-001_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 < 0.1 nmol/l. For more details see file 2016-001_DMS_report.pdf and for duplicate analysis see 2016-001_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. 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 is 0.1 nmol/l, so “0” values should be interpreted as < 0.1 nmol/l. DMSP data are limited to 2 significant figures. For details on analysis see document 2016-001_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. For duplicates and precision of DIC, ALK and pH samples see files 2016-001_DIC.pdf, 2016-001_ALK.pdf, and 2016-001_pH.pdf respectively. 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 ~3 months 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. NOTE: While the Fluorescence:CTD data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples, particularly for casts far from shore. It is recommended that users check extracted chlorophyll values where available. For details on how the transmissivity calibration parameters were calculated see the document Transmissivity_Calculation.pdf. NOTE: The transmissivity data were removed for files 2016-001-0002 and 2016-001-0005 because of poor data due to a cable problem. 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: 2016-001-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 Bott Bott 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_ le_ le:F re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: :Bottle ag Dissolv n:Dis ag e_plus ag te: ag te: ag :Disso ag nity: ag Bottle ag !Numb Numb ~ng_ vity: lved: solve CTD: ~o ed: ~ed:B ~o _Nitri ~o Bottle ~o Bottle ~o ~:Inor ~o Total: ~o ~o !er er Sequ CTD CTD: d:CTD Seapoin tt Bottle: ottle tt te: tt tt tt ganic: tt Bottle tt tt ! ence Volume :Mass t le Volume :Mass le Bottle le le le Bottle le le le !---- ---- ---- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- ------- ----- -- ------ -- ------- -- ------ -- ------ -- ------ -- ------- -- *END OF HEADER 420 24 24 5.4 7.9857 32.4923 25.3328 57.3 6.68 291.0 0.790 32.4966 0 6.629 288.7 0 7.83 0 0.869 0 8.27 0 2027.1 0 2175.8 0 7.7993 0 419 23 23 10.6 7.9861 32.4924 25.3329 57.4 6.69 291.1 0.790 -99.0000 0 6.630 288.7 0 7.88 0 0.870 0 8.28 0 2020.3 0 2171.5 0 7.7974 0 418 22 22 26.1 7.9883 32.4928 25.3329 57.4 6.68 290.9 0.773 -99.0000 0 6.629 288.7 3 7.82 3 0.871 3 8.20 3 2016.0 3 2166.9 3 7.8030 3 417 21 21 50.1 7.9912 32.4928 25.3324 57.4 6.67 290.3 0.788 -99.0000 0 6.623 288.4 0 7.87 6 0.867 6 8.22 6 2018.8 0 2178.1 0 7.8003 0 416 20 20 76.6 7.9876 32.5304 25.3625 58.7 6.59 287.0 0.537 -99.0000 0 6.560 285.6 36 8.25 0 0.886 0 8.64 0 2018.6 0 2167.9 0 7.7947 0 415 19 19 100.9 7.6865 33.0862 25.8421 60.8 5.37 233.7 0.093 -99.0000 0 5.306 230.9 0 17.26 0 1.361 0 20.09 0 2088.0 0 2199.8 0 7.6816 0 414 18 18 126.0 7.2247 33.5389 26.2629 61.0 4.65 202.4 0.059 -99.0000 0 4.638 201.8 0 22.52 0 1.614 0 28.71 0 2132.4 0 2227.7 0 7.6140 6 413 17 17 150.6 6.9823 33.7358 26.4512 61.0 3.82 166.0 0.051 -99.0000 0 3.813 165.9 0 26.83 0 1.857 0 37.11 0 2170.6 0 2259.3 0 7.5468 0 412 16 16 175.2 6.7221 33.7956 26.5334 61.0 3.72 162.0 0.051 -99.0000 0 3.718 161.7 6 28.00 0 1.943 0 40.84 0 2177.1 0 2256.9 0 7.5349 0 411 15 15 200.7 6.3722 33.8310 26.6073 61.1 3.31 143.8 0.051 -99.0000 0 3.323 144.5 0 30.44 0 2.113 0 46.51 0 2200.4 0 2257.0 0 7.4936 0 410 14 14 252.2 5.4048 33.8483 26.7410 61.4 2.82 122.5 0.050 -99.0000 0 2.788 121.2 0 34.36 0 2.383 0 59.14 0 2233.6 0 2276.1 0 7.4269 0 409 13 13 296.2 4.8892 33.8406 26.7944 61.6 2.79 121.5 0.050 -99.0000 0 2.797 121.6 6 35.32 0 2.457 0 64.13 0 2236.1 0 2284.1 0 7.4198 0 408 12 12 400.6 4.2577 33.9224 26.9280 61.6 1.64 71.1 0.050 -99.0000 0 1.666 72.4 0 41.11 0 2.827 0 84.39 0 2286.1 0 2305.4 0 7.3174 0 407 11 11 602.2 3.9886 34.1368 27.1264 61.7 0.63 27.2 0.051 -99.0000 0 0.636 27.6 2 44.60 0 3.067 0 107.89 0 2330.2 0 2336.2 0 7.2828 0 406 10 10 802.7 3.4890 34.2501 27.2664 61.8 0.53 23.1 0.051 -99.0000 0 0.534 23.2 0 44.85 6 3.105 6 126.07 6 2351.4 0 2351.0 0 7.2880 0 405 9 9 1001.1 3.0887 34.3424 27.3778 61.7 0.39 17.1 0.051 34.3408 0 0.413 18.0 0 45.57 0 3.135 0 140.68 0 2371.5 0 2376.6 0 7.2892 0 404 8 8 1252.2 2.7201 34.4251 27.4769 61.7 0.34 14.7 0.050 34.4266 6 0.334 14.5 0 46.11 0 3.164 0 153.93 0 2383.1 0 2392.8 0 7.2954 0 403 7 7 1501.9 2.4250 34.4862 27.5511 61.8 0.46 20.1 0.049 34.4847 0 0.477 20.7 36 45.98 0 3.111 0 163.05 0 2391.7 0 2406.0 0 -99.0000 1 402 6 6 2002.0 1.9794 34.5760 27.6593 61.9 1.20 52.0 0.045 34.5781 6 1.209 52.5 0 44.12 0 2.983 0 172.89 0 2383.8 0 2422.9 0 7.3800 0 401 5 5 2501.3 1.7376 34.6243 27.7167 61.9 1.89 82.1 0.043 34.6242 0 1.891 82.2 0 41.99 0 2.856 0 175.16 0 2360.1 0 2418.1 0 7.4465 6 400 4 4 3002.3 1.5989 34.6511 27.7486 61.9 2.45 106.4 0.041 34.6501 6 2.440 106.0 0 40.58 0 2.717 0 173.66 0 2353.3 0 2432.4 0 7.4938 0 399 3 3 3501.9 1.5381 34.6674 27.7662 61.9 2.83 123.1 0.040 34.6673 0 2.837 123.3 0 39.52 0 2.665 0 173.18 0 2352.7 0 2431.2 0 7.5295 0 398 2 2 3500.5 1.5382 34.6673 27.7661 61.9 2.84 123.3 0.040 34.6662 0 2.828 122.9 0 39.54 0 2.652 0 173.35 0 2352.8 6 2432.6 6 7.5294 0 397 1 1 4025.2 1.5439 34.6756 27.7723 61.4 2.99 130.1 0.040 -99.0000 0 3.029 131.6 3 39.13 0 2.617 0 176.61 0 2341.7 0 2420.8 0 7.5467 0