*2022/04/29 11:32:54.50 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2010/06/14 08:49:12.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 16 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 9A6B2257 NUMBER OF CHANNELS : 13 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 412 427 2 Bottle_Number n/a 1 16 3 Bottle:Firing_Sequence n/a 1 16 4 Pressure:CTD dbar 2.1 30.7 5 Temperature:CTD deg_C_(ITS90) 7.2935 7.3042 6 Salinity:CTD PSS-78 32.7063 32.7094 7 Sigma-t:CTD kg/m^3 25.5969 25.6007 8 Transmissivity:CTD %/m 50 50.2 9 Oxygen:Dissolved:CTD:Volume ml/l 7.01 7.03 10 Oxygen:Dissolved:CTD:Mass µmol/kg 305.3 305.9 11 Fluorescence:CTD:Seapoint mg/m^3 0.943 1.004 12 Salinity:Bottle PSS-78 32.709 32.709 13 Flag:Salinity:Bottle n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I 0 2 -99 ' ' 5 I I 0 3 -99 ' ' 5 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 ' ' $END *ADMINISTRATION MISSION : 2010-013 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 : 52 LATITUDE : 49 59.98000 N ! (deg min) LONGITUDE : 144 59.89000 W ! (deg min) WATER DEPTH : 4252 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove a few spiky points from Salinity:CTD around 30 dbar. Other noisy data look likely to be due to real variability. Analysis methods: ----------------- Salinity samples were collected in glass bottles and analyzed at sea using a Guildline Portasal (#58879) or at IOS on a Guildline model 8400B Autosal standardized with IAPSO standard seawater. For details on duplicate analysis see file 2010-013_SAL.pdf. Oxygen samples were analyzed at sea using an automated Winkler titration system with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). The titration system consists of a Brinkmann 665 Dosimat, a UV light source and a UV detector with a 365 nm filter custom built by Scripps Institution of Oceanography. For details on duplicate analysis see file 2010-013_OXY.pdf. Nutrient samples were collected in plastic tubes. Most samples were analyzed frozen at IOS using an Astoria autoanalyzer following methods described in Barwell-Clarke and Whitney (1996). Deep silicate samples (400 dbar and below) were analyzed cool at IOS. For precision and duplicate analysis see file 2010-013_NUT.pdf. NOTE: frozen samples were accidentally thawed for 2 days at room temperature then stored cool until analyzed. Chlorophyll samples were analyzed at sea using a Chemistry Turner Designs 10AU fluorometer which was calibrated on May 12, 2009 using pure chlorophyll a. Chlorophyll precision was determined by analyzing replicate samples drawn from one Niskin. Phaeopigment data are provided for information only and no quality flags are assigned to them. For details on duplicates see file 2010-013_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 2010-013_DMS_report.pdf and for duplicates see 2010-013_DMS.pdf. The minimum detectable level for DMSP is 0.10 nM, so “0” values should be interpreted as <0.10. For details on analysis see document 2010-013_DMS_report.pdf. Dissolved inorganic carbon (DIC) was determined using coulometric analysis. Total alkalinity (Alk) was determined by potentiometric titration. pH on the total hydrogren ion concentration scale was determined photometrically and is reported at 25C and surface pressure. For duplicates and precision of DIC, ALK and pH samples see files 2010-013_DIC.pdf, 2010-013_ALK.pdf, and 2010-013_pH.pdf respectively. 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 ~6-7 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. 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. 5. 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. Data Processing Notes: ---------------------- Fluorescence, Transmissivity and PAR data are nominal and unedited. Transmissometer #1005DR was calibrated in March 2008, and drifted significantly but steadily until July 2009; then a sudden shift occurred, so that maximum values between September 2009 and July 2010 were very low, ~25%/m. In August 2010 a study was made of transmissivity that led to a decision to apply post-processing corrections to all cruises between March 2008 and June 2010. Transmissivity data from this cruise were corrected by multiplying the original values by correction factor 2.5, which was based on the assumption that deep offshore transmissivity should be about 62%/m. For details on the transmissometer post-processing see: Transmissometer_1005DR_Corrections.pdf These data should still be considered nominal. For details on the processing see processing report: 2010-013-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 !Samp Bott Bott Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl !le_ le_ le:F re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: :Bottle ag !Numb Numb ~ng_ vity: lved: solve CTD: ~o !er er Sequ CTD CTD: d:CTD Seapoin tt ! ence Volume :Mass t le !---- ---- ---- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- *END OF HEADER 427 16 16 2.1 7.3041 32.7063 25.5969 50.0 7.03 305.8 0.943 -99.0000 0 426 15 15 5.7 7.3042 32.7091 25.5991 50.0 7.02 305.6 0.961 32.7090 0 425 14 14 10.6 7.3035 32.7093 25.5994 50.2 7.02 305.8 0.959 -99.0000 0 424 13 13 19.9 7.3027 32.7093 25.5995 50.2 7.02 305.8 0.984 -99.0000 0 423 12 12 30.5 7.2955 32.7093 25.6005 50.2 7.02 305.6 0.969 -99.0000 0 422 11 11 30.5 7.2974 32.7093 25.6002 50.0 7.03 305.9 0.990 -99.0000 0 421 10 10 30.4 7.2975 32.7093 25.6002 50.0 7.03 305.9 0.977 -99.0000 0 420 9 9 30.5 7.2981 32.7092 25.6000 50.0 7.01 305.4 0.985 -99.0000 0 419 8 8 30.5 7.2978 32.7092 25.6001 50.0 7.02 305.5 0.980 -99.0000 0 418 7 7 30.7 7.2971 32.7092 25.6002 50.0 7.02 305.5 0.993 -99.0000 0 417 6 6 30.2 7.2947 32.7093 25.6006 50.0 7.02 305.7 0.991 -99.0000 0 416 5 5 30.6 7.2935 32.7093 25.6007 50.0 7.02 305.6 1.004 -99.0000 0 415 4 4 30.7 7.2939 32.7092 25.6006 50.2 7.01 305.3 0.992 -99.0000 0 414 3 3 30.3 7.2944 32.7092 25.6005 50.0 7.03 305.8 0.989 -99.0000 0 413 2 2 30.7 7.2953 32.7092 25.6004 50.0 7.02 305.7 0.990 -99.0000 0 412 1 1 30.6 7.2954 32.7094 25.6005 50.0 7.02 305.7 0.980 -99.0000 0