*2022/05/12 15:23:46.94 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2009/08/26 10:38:40.000 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 : A77FFC99 NUMBER OF CHANNELS : 16 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 313 336 2 Bottle_Number n/a 1 24 3 Pressure:CTD dbar 498 2008.8 4 Temperature:CTD deg_C_(ITS90) 1.9417 3.9834 5 Salinity:CTD PSS-78 34.0999 34.5851 6 Sigma-t:CTD kg/m^3 27.0976 27.6696 7 Transmissivity:CTD %/m 50.1 50.1 8 Oxygen:Dissolved:CTD:Volume ml/l 0.84 1.27 9 Oxygen:Dissolved:CTD:Mass µmol/kg 36.6 55.1 10 Fluorescence:CTD:Seapoint mg/m^3 0.9E-01 0.96E-01 11 Nitrate_plus_Nitrite:Bottle µmol/l 42.4 43.3 12 Flag:Nitrate_plus_Nitrite:Bottle n/a 13 Phosphate:Bottle µmol/l 3.08 3.08 14 Flag:Phosphate:Bottle n/a 15 Silicate:Bottle µmol/l 104.3 174.5 16 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 ' ' 7 F ' ' 1 4 -99 ' ' 9 F ' ' 4 5 -99 ' ' 9 F ' ' 4 6 -99 ' ' 9 F R4 4 7 -99 ' ' 6 F ' ' 1 8 -99 ' ' 7 F ' ' 2 9 -99 ' ' 6 F ' ' 1 10 -99 ' ' 8 F ' ' 3 11 -99 ' ' 6 F R4 1 12 0 ' ' 3 NQ C ' ' 13 -99 ' ' 7 F R4 2 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 6 F R4 1 16 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2009-010 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 : 41 LATITUDE : 49 34.05000 N ! (deg min) LONGITUDE : 138 39.95000 W ! (deg min) WATER DEPTH : 3968 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0585 LOCATION : Aft-deck ! custom item *COMMENTS Analysis methods: ----------------- Salinity samples were collected in glass bottles and analyzed at IOS on a Guildline model 8400B Autosal standardized with IAPSO standard seawater. Samples from two casts were analyzed at sea on a Guildline Portasal; there are comments attached to those samples and all were flagged 4. For details on duplicate analysis see file 2009-010_SAL.pdf. Oxygen samples were analyzed at sea using an automated titration system consisting of a Brinkman Dosimat (model 765) and a PC 950 Colorimeter. The thiosulphate titer of 0.709 obtained during standardization was low and out of range leading to a suspected overestimate in Oxygen:Dissolved:Bottle value of ~2.5%. This is believed to be due to either a bad batch of standard or incorrect calibration parameters (temperature or volume dispensed). Comparison to the SBE Dissolved Oxygen sensor confirmed the likely DO overestimate using the original 0.709 titer. The data were thus recalculated using the mean thiosulfate titer for the year (0.721). Recalculated results are consistent with a post-cruise calibration of the SBE Dissolved Oxygen sensor. All samples are flagged 4 since the data are considered to be of lower quality than usual. For details on duplicate analysis see document 2009-010_OXY.pdf. Nutrient samples were collected in plastic tubes and analyzed fresh at sea using an Astoria Pacific autoanalyzer following methods described in Barwell-Clarke and Whitney (1996). For information on duplicates and precision see file 2009-010_NUT.pdf. Chlorophyll samples were analyzed at sea using a Chemistry Turner Designs 10AU fluorometer which was calibrated on May 13, 2009 using pure chlorophyll a. Chlorophyll precision was determined by analyzing replicate samples drawn from one Niskin. For details on duplicates see file 2009-010_CHL.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 2009-010_DMS_report.pdf and for duplicates see 2009-010_DMS.pdf. DMSP: All sample data were discarded due to blank contamination problems. For details on analysis see document 2009-010_DMS_report.pdf. 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 ~4 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. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 2. 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. 3. 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. --------------------------------------------------------------------- For details on the processing see processing report: 2009-010-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 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 !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Nitra Fl Phosph Fl Silic Fl !le_ tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: te_pl ag ate: ag ate: ag !Numb ~u vity: lved: solve CTD: ~Nitr ~o Bottle ~o Bottl ~o !er mb CTD CTD: d:CTD Seapoin ite:B tt tt e tt ! er Volume :Mass t ottle le le le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- ----- -- ------ -- ----- -- *END OF HEADER 336 24 499.1 3.9834 34.0999 27.0976 50.1 0.85 36.9 0.094 -99.0 0 -99.00 0 -99.0 0 335 23 501.0 3.9821 34.1006 27.0983 50.1 0.85 36.9 0.094 -99.0 0 -99.00 0 -99.0 0 334 22 498.0 3.9829 34.0999 27.0977 50.1 0.85 36.8 0.094 -99.0 0 -99.00 0 -99.0 0 333 21 500.3 3.9817 34.1003 27.0981 50.1 0.85 36.9 0.096 -99.0 0 -99.00 0 -99.0 0 332 20 500.7 3.9804 34.1011 27.0989 50.1 0.85 36.7 0.094 -99.0 0 -99.00 0 -99.0 0 331 19 500.4 3.9815 34.1004 27.0982 50.1 0.85 36.7 0.094 -99.0 0 -99.00 0 -99.0 0 330 18 499.6 3.9818 34.1004 27.0982 50.1 0.85 36.8 0.093 -99.0 0 -99.00 0 -99.0 0 329 17 499.3 3.9820 34.1002 27.0980 50.1 0.84 36.6 0.095 -99.0 0 -99.00 0 -99.0 0 328 16 500.5 3.9809 34.1006 27.0984 50.1 0.84 36.6 0.093 -99.0 0 -99.00 0 -99.0 0 327 15 500.4 3.9801 34.1012 27.0990 50.1 0.85 36.9 0.093 -99.0 0 -99.00 0 -99.0 0 326 14 499.9 3.9813 34.1007 27.0985 50.1 0.85 36.7 0.094 -99.0 0 -99.00 0 -99.0 0 325 13 500.1 3.9812 34.1006 27.0984 50.1 0.84 36.6 0.094 42.4 0 3.08 0 104.3 0 324 12 2007.3 1.9419 34.5849 27.6694 50.1 1.26 55.0 0.091 -99.0 0 -99.00 0 -99.0 0 323 11 2007.6 1.9417 34.5850 27.6695 50.1 1.27 55.1 0.091 -99.0 0 -99.00 0 -99.0 0 322 10 2008.5 1.9418 34.5850 27.6695 50.1 1.26 55.0 0.091 -99.0 0 -99.00 0 -99.0 0 321 9 2007.0 1.9418 34.5850 27.6695 50.1 1.27 55.1 0.091 -99.0 0 -99.00 0 -99.0 0 320 8 2008.7 1.9420 34.5850 27.6695 50.1 1.26 54.8 0.093 -99.0 0 -99.00 0 -99.0 0 319 7 2007.8 1.9420 34.5850 27.6695 50.1 1.26 55.0 0.092 -99.0 0 -99.00 0 -99.0 0 318 6 2007.8 1.9421 34.5849 27.6694 50.1 1.26 55.0 0.092 -99.0 0 -99.00 0 -99.0 0 317 5 2008.0 1.9419 34.5851 27.6696 50.1 1.26 55.0 0.091 -99.0 0 -99.00 0 -99.0 0 316 4 2006.7 1.9419 34.5849 27.6694 50.1 1.27 55.1 0.092 -99.0 0 -99.00 0 -99.0 0 315 3 2008.8 1.9417 34.5850 27.6695 50.1 1.26 54.8 0.093 -99.0 0 -99.00 0 -99.0 0 314 2 2007.3 1.9418 34.5850 27.6695 50.1 1.26 55.0 0.090 -99.0 0 -99.00 0 -99.0 0 313 1 2008.5 1.9420 34.5850 27.6695 50.1 1.26 54.9 0.091 43.3 0 3.08 0 174.5 0