*2013/08/12 08:47:14.06 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2012/02/15 18:48:42.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 14 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 476808CB NUMBER OF CHANNELS : 21 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 421 434 2 Bottle_Number n/a 1 14 3 Bottle:Firing_Sequence n/a 1 14 4 Pressure:CTD dbar 2.8 74.8 5 Temperature:CTD deg_C_(ITS90) 5.498 5.5171 6 Salinity:Practical:CTD PSS-78 32.684 32.6884 7 Sigma-t:CTD kg/m^3 25.8083 25.8099 8 Transmissivity:CTD %/m 62.7 63 9 Oxygen:Dissolved:CTD:Volume ml/l 7.02 7.06 10 Oxygen:Dissolved:CTD:Mass µmol/kg 305.6 307.1 11 Fluorescence:CTD:Wetlabs mg/m^3 0.563 1.117 12 PAR:CTD µE/m^2/sec 1.5 207.1 13 Nitrate_plus_Nitrite:Bottle µmol/l 17 17.1 14 Flag:Nitrate_plus_Nitrite:Bottle n/a 15 Phosphate:Bottle µmol/l 1.49 1.51 16 Flag:Phosphate:Bottle n/a 17 Silicate:Bottle µmol/l 27.1 27.2 18 Flag:Silicate:Bottle n/a 19 Chlorophyll:Extracted:Bottle mg/m^3 0.4 0.42 20 Flag:Chlorophyll:Extracted:Bottle n/a 21 Phaeo-Pigment:Extracted:Bottle mg/m^3 0.12 0.14 $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 ' ' 7 F ' ' 1 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 ' ' 7 F R4 2 $END *ADMINISTRATION MISSION : 2012-01 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 : 49 LATITUDE : 50 0.02000 N ! (deg min) LONGITUDE : 144 59.98000 W ! (deg min) WATER DEPTH : 4225 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS Analysis methods: ----------------- Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -20C 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 a controlled temperature lab. When duplicate samples were collected the average of two samples is reported. Variability is assessed as the CV% (std dev / mean*100). For details see file 2012-01_CHL.pdf. Phaeopigment data are provided for information only and no quality flags are assigned to them. Oxygen samples were analyzed on an automated Winkler titration system (Brinkmann Dosimat model 765 and a PC950 Colorimeter controlled by AutoOxy software V3.4) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). All samples were analyzed at sea. The analysis of the duplicates is in file 2012-01_OXY.pdf. Salinity samples were collected in 200 ml type ll glass bottles with disposable plastic inserts 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 within 9-11 days after the end of the cruise. The analysis of the duplicates is in file 2012-01_SAL.pdf. Nutrient samples were collected in plastic tubes and quick frozen in aluminum blocks stored in -20C 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 later analyzed at IOS using the Astoria analyzer following methods described in Barwell-Clarke and Whitney (1996). See file 2012-01_NUT.pdf for duplicates and precision information. NOTE: July 2013: A correction has been applied to Nitrate_plus_Nitrite:Bottle and Phosphate:Bottle data from deep-water cruises analyzed at IOS between 2009 and 2012. For details see the report: Corrections_to_Nitrate_and_Phosphate_Data_2009-2012.pdf. 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. --------------------------------------------------------------------------- Transmissivity and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. Fluorescence data were recalibrated to correct an error in the scale factor used in the original conversion. The data are still considered nominal and are unedited. For details on how the transmissivity calibration parameters were calculated see the document Transmissivity_Calculation.pdf. The Oxygen:Dissolved:CTD calibration was done using the method described in the Sea-Bird Application Note #64-2 (Sea-Bird_64-2_Feb2010.pdf). For details on the processing see processing report: 2012-01-proc.pdf NOTE: July 2013: A correction has been applied to Nitrate_plus_Nitrite:Bottle and Phosphate:Bottle data from deep-water cruises analyzed at IOS between 2009 and 2012. For details see the report: Corrections_to_Nitrate_and_Phosphate_Data_2009-2012.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-- !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores PAR: Nitra Fl Phosph Fl Silic Fl Chloro Fl Phaeo- !le_ tt tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: CTD te_pl ag ate: ag ate: ag phyll: ag Pigmen !Numb ~u ~u Practica vity: lved: solve CTD: ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o t:Extr !er mb en l:CTD CTD CTD: d:CTD Wetlabs ite:B tt tt e tt ted: tt acted: ! er ce Volume :Mass ottle le le le Bottle le Bottle !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- ------ ----- -- ------ -- ----- -- ------ -- ------ *END OF HEADER 434 14 12 5.1 5.4980 32.6840 25.8086 62.7 7.05 306.9 0.671 100.0 17.0 1.50 27.2 0.42 6 0.14 433 13 8 20.5 5.5007 32.6842 25.8085 62.8 7.05 306.8 1.096 23.9 17.1 1.51 27.1 0.41 6 0.12 432 12 4 50.4 5.5129 32.6867 25.8090 62.9 7.04 306.4 1.071 5.8 17.1 1.49 27.1 0.40 6 0.13 431 11 14 3.1 5.4983 32.6840 25.8086 62.7 7.05 306.9 0.563 183.4 -99.0 -99.00 -99.0 -99.00 -99.00 430 10 13 2.8 5.4980 32.6840 25.8086 62.7 7.06 307.1 0.563 207.1 -99.0 -99.00 -99.0 -99.00 -99.00 429 9 11 10.6 5.4992 32.6840 25.8085 62.7 7.05 307.0 0.779 48.1 -99.0 -99.00 -99.0 -99.00 -99.00 428 8 10 14.4 5.5022 32.6845 25.8085 62.9 7.05 306.8 0.975 36.7 -99.0 -99.00 -99.0 -99.00 -99.00 427 7 9 14.4 5.5007 32.6843 25.8086 62.8 7.05 306.9 0.938 36.4 -99.0 -99.00 -99.0 -99.00 -99.00 426 6 7 25.2 5.5009 32.6840 25.8083 62.7 7.05 306.7 1.029 19.2 -99.0 -99.00 -99.0 -99.00 -99.00 425 5 6 36.3 5.5033 32.6843 25.8083 62.9 7.04 306.6 1.117 11.8 -99.0 -99.00 -99.0 -99.00 -99.00 424 4 5 36.4 5.5023 32.6842 25.8083 62.9 7.05 306.7 1.108 11.9 -99.0 -99.00 -99.0 -99.00 -99.00 423 3 3 47.1 5.5122 32.6865 25.8090 62.9 7.04 306.3 1.046 8.7 -99.0 -99.00 -99.0 -99.00 -99.00 422 2 2 74.8 5.5171 32.6884 25.8099 63.0 7.03 305.8 1.017 1.5 -99.0 -99.00 -99.0 -99.00 -99.00 421 1 1 74.1 5.5169 32.6884 25.8099 63.0 7.02 305.6 1.004 1.5 -99.0 -99.00 -99.0 -99.00 -99.00