*2011/06/28 11:56:31.50 *IOS HEADER VERSION 1.9 2011/06/09 2011/06/09 *FILE START TIME : UTC 2008/06/10 15:01:26.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 6 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : C5A3F85 NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 564 569 2 Bottle_Number n/a 1 6 3 Pressure:CTD dbar 2.8 49.9 4 Temperature:CTD deg_C_(ITS90) 5.5345 7.1664 5 Salinity:Practical:CTD PSS-78 32.6509 32.6719 6 Sigma-t:CTD kg/m^3 25.5724 25.7929 7 Transmissivity:CTD %/m 45.5 53.3 8 Oxygen:Dissolved:CTD:Volume ml/l 7.41 7.54 9 Oxygen:Dissolved:CTD:Mass µmol/kg 322.6 328.1 10 Fluorescence:CTD mg/m^3 0.644 1.322 $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 $END *ADMINISTRATION MISSION : 2008-26 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 : PA-001 EVENT NUMBER : 75 LATITUDE : 50 8.28000 N ! (deg min) LONGITUDE : 144 49.95000 W ! (deg min) WATER DEPTH : 4218 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 *COMMENTS Analysis methods: ----------------- Chlorophyll samples were analyzed at sea using a Chemistry Turner Designs fluorometer which was calibrated in May 2008 using pure chlorophyll a. Chlorophyll precision was determined by analyzing replicate samples drawn from one Niskin. For details see file 2008-26_CHL.pdf. Oxygen samples were analyzed on an automated Winkler titration system following the procedures of Carpenter (1965). Samples were analyzed at sea using an automated titration system consisting of a Brinkman Dosimat (model 665) and a PC 900 Colorimeter. For duplicate analysis see file 2008-26_OXY.pdf. Salinity samples were collected in glass bottles and analyzed on a Guildline model 8400B Autosal or a Guildline Portasal 8410A. Salinometers are standardized with IAPSO standard seawater. See file 2008-26_SAL.pdf for information on precision, and note the warning given below. Nutrient samples were collected in plastic tubes and analyzed fresh at sea using a Technicon AAII autoanalyzer following methods described in Barwell-Clarke and Whitney (1996). For details on nutrient duplicates and precision see file 2008-26_NUT.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 2008-26_DMS_report.pdf. For duplicates analysis see file 2008-26_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. ********************************************************************************** WARNING: The salinity analyses done on a Portasal salinometer at sea are considered unreliable. Many duplicate samples were run using an Autosal at IOS and the Portasal. The results showed that the Portasal read much lower than the Autosal for those samples analyzed on the Portasal on June 5th. For other days the Portasal was low by an average of 0.0016 but there was a lot of noise in the comparison with many values within 0.001 of the Autosal, while others looked unstable. Autosal values have been selected for Salinity:Bottle where possible. Where there are no Autosal values, the Portasal values were used, but were all flagged 3, except for those from June 5th which have been flagged 4. ********************************************************************************** Transmissivity, fluorescence and PAR are nominal and unedited except that some records were removed in editing temperature and salinity. The Salinity:Practical:CTD data were recalibrated based on a comparison with samples analyzed at IOS on an Autosal. Other samples run at sea on a Portasal appear unreliable based on a study of duplictes run on the two salinometers. For details on the processing see processing report: 2008-26-proc.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-- !Samp Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores !le_ tt re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: !Numb ~u vity: lved: solve CTD !er mb CTD CTD: d:CTD ! er Volume :Mass !---- -- ------ -------- -------- -------- ----- ------ ----- ------- *END OF HEADER 569 6 2.8 7.1664 32.6517 25.5727 45.5 7.42 323.0 0.772 568 5 4.9 7.1644 32.6509 25.5724 46.7 7.41 322.6 0.799 567 4 10.3 6.6356 32.6709 25.6582 46.6 7.54 328.1 0.956 566 3 20.2 6.3920 32.6719 25.6903 47.5 7.50 326.4 1.191 565 2 30.1 6.3424 32.6712 25.6960 47.5 7.46 324.6 1.322 564 1 49.9 5.5345 32.6695 25.7929 53.3 7.43 323.4 0.644