*2013/08/12 15:53:05.47 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2011/08/25 07:14:14.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 2 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : DA9F377F NUMBER OF CHANNELS : 22 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 428 429 2 Bottle_Number n/a 1 2 3 Bottle:Firing_Sequence n/a 1 2 4 Pressure:CTD dbar 4.9 74.1 5 Temperature:CTD deg_C_(ITS90) 6.4202 13.2407 6 Salinity:Practical:CTD PSS-78 32.5099 32.8054 7 Sigma-t:CTD kg/m^3 24.4432 25.792 8 Transmissivity:CTD %/m 58 62.1 9 Oxygen:Dissolved:CTD:Volume ml/l 6.18 6.81 10 Oxygen:Dissolved:CTD:Mass µmol/kg 269.5 296.4 11 Fluorescence:CTD:Wetlabs mg/m^3 1.248 1.305 12 Salinity:Bottle PSS-78 32.8001 32.8001 13 Flag:Salinity:Bottle n/a 14 Nitrate_plus_Nitrite:Bottle µmol/l 7.1 12.1 15 Flag:Nitrate_plus_Nitrite:Bottle n/a 16 Phosphate:Bottle µmol/l 0.91 1.23 17 Flag:Phosphate:Bottle n/a 18 Silicate:Bottle µmol/l 13.5 16 19 Flag:Silicate:Bottle n/a 20 Chlorophyll:Extracted:Bottle mg/m^3 0.25 0.25 21 Flag:Chlorophyll:Extracted:Bottle n/a 22 Phaeo-Pigment:Extracted:Bottle mg/m^3 0.8E-01 0.8E-01 $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 ' ' 6 F R4 1 15 0 ' ' 3 NQ C ' ' 16 -99 ' ' 7 F R4 2 17 0 ' ' 3 NQ C ' ' 18 -99 ' ' 6 F R4 1 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' 7 F R4 2 21 0 ' ' 3 NQ C ' ' 22 -99 ' ' 7 F R4 2 $END *ADMINISTRATION MISSION : 2011-27 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 : P22 EVENT NUMBER : 61 LATITUDE : 49 41.97000 N ! (deg min) LONGITUDE : 140 39.82000 W ! (deg min) WATER DEPTH : 3923 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0550 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 2011-27_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. For details including a duplicate analysis, see file 2011-27_OXY.pdf. Salinity samples were collected in 200 ml type ll glass bottles with 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 5 months after collection. Full details are in file 2011-27_SAL.pdf. Nutrient samples were collected in plastic tubes. Most samples were analyzed fresh at sea. A few loop samples were analyzed frozen at IOS. An Astoria analyzer was used following methods described in Barwell-Clarke and Whitney (1996). See file 2011-27_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. 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 2011-27_DMS_Report.pdf. See file 2011-27_DMS.pdf for duplicates and precision study. 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. --------------------------------------------------------------------------- Fluorescence, Transmissivity and PAR data are nominal and 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: 2011-27-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 --22-- !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl Nitra Fl Phosph Fl Silic Fl Chloro Fl Phaeo- !le_ tt tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: :Bottle ag te_pl ag ate: ag ate: ag phyll: ag Pigmen !Numb ~u ~u Practica vity: lved: solve CTD: ~o ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o t:Extr !er mb en l:CTD CTD CTD: d:CTD Wetlabs tt ite:B tt tt e tt ted: tt acted: ! er ce Volume :Mass le ottle le le le Bottle le Bottle !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- ----- -- ------ -- ----- -- ------ -- ------ *END OF HEADER 429 2 2 4.9 13.2407 32.5099 24.4432 58.0 6.18 269.5 1.305 32.8001 7.1 0.91 13.5 0.25 0.08 428 1 1 74.1 6.4202 32.8054 25.7920 62.1 6.81 296.4 1.248 -99.0000 12.1 1.23 16.0 -99.00 5 -99.00