*2013/10/08 13:34:35.77 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2009/09/01 16:20:46.000 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 : 884AB184 NUMBER OF CHANNELS : 16 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 640 659 2 Bottle_Number n/a 1 20 3 Pressure:CTD dbar 4.4 1998.8 4 Temperature:CTD deg_C_(ITS90) 1.9383 15.2438 5 Salinity:Practical:CTD PSS-78 32.2019 34.591 6 Sigma-t:CTD kg/m^3 23.7901 27.6746 7 Transmissivity:CTD %/m 40.9 49.7 8 Oxygen:Dissolved:CTD:Volume ml/l 0.24 6.37 9 Oxygen:Dissolved:CTD:Mass µmol/kg 9.8 277.3 10 Fluorescence:CTD:Seapoint mg/m^3 0.97E-01 1.306 11 Nitrate_plus_Nitrite:Bottle µmol/l 0.3 46.8 12 Flag:Nitrate_plus_Nitrite:Bottle n/a 13 Phosphate:Bottle µmol/l 0.48 3.3 14 Flag:Phosphate:Bottle n/a 15 Silicate:Bottle µmol/l 4.5 173.7 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 : 2009-10 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 : P8 EVENT NUMBER : 74 LATITUDE : 48 48.97000 N ! (deg min) LONGITUDE : 128 40.01000 W ! (deg min) WATER DEPTH : 2516 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0585 LOCATION : Aft-deck ! custom item *COMMENTS Analysis methods: ----------------- 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 see file 2009-10_CHL.pdf. Oxygen samples were analyzed at sea using an automated titration system consisting of a Brinkman Dosimat (model 765) and a PC 950 Colorimeter. For information on precision see file 2009-10_OXY.pdf. 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 Oxygen:Dissolved:CTD data confirmed the likely Oxygen:Dissolved: Bottle data overestimate using the original 0.709 titer. The Oxygen:Dissolved:Bottle 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 Oxygen:Dissolved:CTD sensor. All samples are flagged "4" since the data are considered to be of lower quality than usual. 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". See file 2009-10_SAL.pdf for information on Autosal precision. 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 details on nutrient duplicates and precision see file 2009-10_NUT.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. 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 2009-10_DMS_report.pdf. For duplicates see file 2009-10_DMS.pdf. References: 1. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 2. J. Barwell-Clarke and F. Whitney. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. --------------------------------------------------------------------- For details on the processing see processing report: 2010-01-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 !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Nitra Fl Phosph Fl Silic Fl !le_ tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: te_pl ag ate: ag ate: ag !Numb ~u Practica vity: lved: solve CTD: ~Nitr ~o Bottle ~o Bottl ~o !er mb l:CTD CTD CTD: d:CTD Seapoin ite:B tt tt e tt ! er Volume :Mass t ottle le le le !---- -- ------ -------- -------- -------- ----- ------ ----- ------- ----- -- ------ -- ----- -- *END OF HEADER 659 20 4.4 15.2438 32.2027 23.7901 40.9 6.02 262.4 0.686 -99.0 -99.00 -99.0 658 19 9.0 15.2406 32.2019 23.7901 41.4 6.04 263.4 0.811 0.3 0.48 4.5 657 18 25.1 12.2002 32.3128 24.4915 43.9 6.33 275.8 1.306 -99.0 -99.00 -99.0 656 17 50.0 7.9687 32.4341 25.2896 48.4 6.37 277.3 0.220 -99.0 -99.00 -99.0 655 16 75.6 7.2673 32.5325 25.4652 49.2 6.15 267.7 0.125 -99.0 -99.00 -99.0 654 15 100.2 7.3971 33.1112 25.9025 49.1 4.37 190.0 0.128 -99.0 -99.00 -99.0 653 14 126.0 7.7292 33.5974 26.2377 49.4 2.65 114.9 0.103 -99.0 -99.00 -99.0 652 13 149.8 7.7135 33.7400 26.3520 49.4 2.26 97.7 0.103 -99.0 -99.00 -99.0 651 12 175.4 7.6010 33.8104 26.4235 49.5 2.13 92.0 0.102 -99.0 -99.00 -99.0 650 11 200.1 7.4382 33.8646 26.4893 49.6 2.04 88.2 0.100 -99.0 -99.00 -99.0 649 10 248.9 6.9873 33.9211 26.5965 49.6 2.03 87.6 0.100 -99.0 -99.00 -99.0 648 9 300.8 6.4443 33.9440 26.6871 49.5 1.92 83.3 0.100 -99.0 -99.00 -99.0 647 8 400.6 5.4113 34.0208 26.8768 49.6 1.09 46.5 0.100 -99.0 -99.00 -99.0 646 7 500.0 4.8527 34.0981 27.0027 49.7 0.65 27.6 0.099 43.0 3.12 88.0 645 6 601.1 4.6130 34.1946 27.1060 49.7 0.36 15.0 0.100 -99.0 -99.00 -99.0 644 5 800.4 4.0827 34.2964 27.2437 49.7 0.24 9.8 0.101 -99.0 -99.00 -99.0 643 4 998.8 3.5347 34.3973 27.3792 49.7 0.28 11.5 0.101 46.8 3.30 130.7 642 3 1250.2 2.9425 34.4538 27.4800 49.7 0.40 16.5 0.099 -99.0 -99.00 -99.0 641 2 1499.7 2.5025 34.5083 27.5623 49.7 0.66 28.0 0.098 -99.0 -99.00 -99.0 640 1 1998.8 1.9383 34.5910 27.6746 49.7 1.41 60.3 0.097 45.0 3.11 173.7