*2021/10/27 07:41:06.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2013/06/16 15:49:08.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 20 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 7C7D7B43 NUMBER OF CHANNELS : 17 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 560 579 2 Bottle_Number n/a 1 20 3 Bottle:Firing_Sequence n/a 1 20 4 Pressure:CTD dbar 999.7 4000.7 5 Temperature:CTD deg_C_(ITS90) 1.5001 2.8616 6 Salinity:CTD PSS-78 34.3857 34.6798 7 Sigma-t:CTD kg/m^3 27.4329 27.7789 8 Transmissivity:CTD %/m 65.4 65.7 9 Oxygen:Dissolved:CTD:Volume ml/l 0.49 3.19 10 Oxygen:Dissolved:CTD:Mass µmol/kg 21.5 138.5 11 Fluorescence:CTD:Seapoint mg/m^3 1.104 1.354 12 Nitrate_plus_Nitrite:Bottle µmol/l 38.1 45.5 13 Flag:Nitrate_plus_Nitrite:Bottle n/a 14 Phosphate:Bottle µmol/l 2.58 3.2 15 Flag:Phosphate:Bottle n/a 16 Silicate:Bottle µmol/l 145.3 171.9 17 Flag:Silicate: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 ' ' 6 F R4 1 13 0 ' ' 3 NQ C ' ' 14 -99 ' ' 7 F R4 2 15 0 ' ' 3 NQ C ' ' 16 -99 ' ' 6 F R4 1 17 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2013-017 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 : P26 EVENT NUMBER : 82 LATITUDE : 49 59.95000 N ! (deg min) LONGITUDE : 145 0.15000 W ! (deg min) WATER DEPTH : 4250 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS Analysis methods: ----------------- Salinity samples were collected in 200 ml type ll glass bottles with reusable silicone inserts supplied by Xiamen Cuten Accessories Industry Limited and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab on a Guildline 8400B Salinometer (S/N 68572) standardized with IAPSO standard seawater 22 to 40 days after collection. The duplicate analysis is in file 2013-017_SAL.pdf Oxygen samples were analyzed at sea on 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 2013-017_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 Barwell-Clarke and Whitney (1996). For precision and duplicate analysis see file 2013-017_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 which is calibrated annually with commercially pure chlorophyll a (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 on board ship in June or in July-August at IOS in a controlled temperature lab. A number of samples were analyzed on a different fluorometer (plankton lab) and values seem to be slightly lower than those analyzed on Water Properties fluorometer. These are flagged. 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 2013-017_CHL.pdf Flags and comments apply to chlorophyll values only; phaeopigment data are provided for information only and no quality flags are assigned to them. 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 ~6-8 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. Salinity:CTD was lower than Salinity:Bottle by an average of ~0.0017. For details on how the transmissivity calibration parameters were calculated see the document Transmissivity_Calculation.pdf. The Oxygen:Dissolved:CTD data are considered of lower quality than usual which is likely due to noisy secondary temperature and/or problems in the secondary plumbing. Problems were less severe during bottle stops except for casts 0018 to 0022 from which the Oxygen:Dissolved:CTD channels were removed. WARNING: SeaPoint Fluorometer #2228 malfunctioned during the latter half of 2013. There were large values at great depth that got steadily higher through the year until it was removed from service. The data have been left in the file so researchers can see the shape of the profile. Comparison with extracted chlorophyll is recommended. For details on the processing see the report: 2013-017-proc.doc. $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 !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Nitra Fl Phosph Fl Silic Fl !le_ tt tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: te_pl ag ate: ag ate: ag !Numb ~u ~u vity: lved: solve CTD: ~Nitr ~o Bottle ~o Bottl ~o !er mb en CTD CTD: d:CTD Seapoin ite:B tt tt e tt ! er ce Volume :Mass t ottle le le le !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- ----- -- ------ -- ----- -- *END OF HEADER 579 20 20 999.7 2.8616 34.3857 27.4329 65.4 0.51 22.2 1.354 43.8 0 3.15 0 145.3 0 578 19 19 1250.0 2.5419 34.4534 27.5150 65.4 0.49 21.5 1.327 45.3 0 3.20 0 156.5 0 577 18 18 1500.5 2.2977 34.5082 27.5793 65.5 0.58 25.1 1.296 45.5 0 3.12 0 164.8 0 576 17 13 2000.2 1.9236 34.5858 27.6716 65.5 1.31 56.9 1.255 43.8 0 2.98 0 171.0 0 575 16 12 2499.7 1.7074 34.6286 27.7225 65.6 1.97 85.7 1.220 41.9 0 2.89 0 171.9 0 574 15 7 2999.4 1.5700 34.6559 27.7546 65.6 2.56 111.1 1.174 40.2 0 2.77 0 170.0 0 573 14 6 3500.0 1.5055 34.6716 27.7719 65.7 2.97 128.8 1.115 38.7 0 2.64 0 168.2 0 572 13 5 4000.4 1.5001 34.6797 27.7788 65.5 3.18 138.3 1.104 38.1 0 2.58 0 168.1 0 571 12 17 2000.4 1.9242 34.5858 27.6715 65.5 1.31 56.7 1.257 -99.0 0 -99.00 0 -99.0 0 570 11 16 2000.1 1.9240 34.5859 27.6716 65.5 1.30 56.7 1.255 -99.0 0 -99.00 0 -99.0 0 569 10 15 1999.6 1.9238 34.5857 27.6715 65.5 1.31 56.9 1.255 -99.0 0 -99.00 0 -99.0 0 568 9 14 2000.8 1.9239 34.5857 27.6715 65.5 1.30 56.7 1.256 -99.0 0 -99.00 0 -99.0 0 567 8 11 2999.5 1.5703 34.6558 27.7545 65.6 2.56 111.1 1.177 -99.0 0 -99.00 0 -99.0 0 566 7 10 2999.2 1.5703 34.6558 27.7545 65.6 2.56 111.1 1.176 -99.0 0 -99.00 0 -99.0 0 565 6 9 2999.8 1.5703 34.6557 27.7544 65.6 2.56 111.1 1.177 -99.0 0 -99.00 0 -99.0 0 564 5 8 3000.0 1.5702 34.6558 27.7545 65.6 2.56 111.2 1.175 -99.0 0 -99.00 0 -99.0 0 563 4 4 4000.6 1.5002 34.6798 27.7789 65.5 3.18 138.0 1.106 -99.0 0 -99.00 0 -99.0 0 562 3 3 4000.4 1.5003 34.6798 27.7789 65.5 3.19 138.3 1.106 -99.0 0 -99.00 0 -99.0 0 561 2 2 3999.9 1.5003 34.6797 27.7788 65.5 3.18 138.3 1.106 -99.0 0 -99.00 0 -99.0 0 560 1 1 4000.7 1.5004 34.6797 27.7788 65.5 3.19 138.5 1.108 -99.0 0 -99.00 0 -99.0 0