*2022/05/04 13:38:43.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2010/02/09 03:07:35.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 8 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : FDBE15E0 NUMBER OF CHANNELS : 14 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- -------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 374 381 2 Bottle_Number n/a 1 8 3 Bottle:Firing_Sequence n/a 1 8 4 Pressure:CTD dbar 2.9 21 5 Temperature:CTD deg_C_(ITS90) 6.9291 6.9453 6 Salinity:CTD PSS-78 32.4176 32.4613 7 Sigma-t:CTD kg/m^3 25.4203 25.4533 8 Transmissivity:CTD %/m 50.9 50.9 9 Oxygen:Dissolved:CTD:Volume ml/l 6.81 6.84 10 Oxygen:Dissolved:CTD:Mass µmol/kg 296.4 297.8 11 Salinity:Bottle PSS-78 32.465 32.4675 12 Flag:Salinity:Bottle n/a 13 Oxygen:Dissolved:Bottle:Volume ml/l 6.819 6.82 14 Flag:Oxygen:Dissolved: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 ' ' 9 F R4 4 12 0 ' ' 3 NQ C ' ' 13 -99 ' ' 8 F R4 3 14 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2010-001 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 34.07000 N ! (deg min) LONGITUDE : 138 39.97000 W ! (deg min) WATER DEPTH : 3940 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove records which had spikes in pressure, temperature or salinity. Analysis methods: ----------------- Salinity samples were collected in glass bottles and analyzed at IOS on a Guildline model 8400B Autosal standardized with IAPSO standard seawater. See file 2010-001_SAL.pdf for information on precision and duplicates. Oxygen samples were analyzed at sea using an automated Winkler titration system with modifications based on Carpenter (1965). The titration system consisted of a Brinkman Dosimat (model 665) and a PC 900 Colorimeter. For details on duplicate analysis see document 2010-001_OXY.pdf. Nutrient samples were collected in plastic tubes and analyzed fresh at sea using an Astoria autoanalyzer following methods described in Barwell-Clarke and Whitney (1996). For duplicates and precision see file 2010-001_NUT.pdf. Chlorophyll and Phaeo-Pigments 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 flag are assigned to them. For details on duplicates see file 2010-001_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 2010-001_DMS_report.pdf and for duplicates see 2010-001_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 2010-001_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 2010-001_DIC.pdf, 2010-001_ALK.pdf, and 2010-001_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 ~3 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. Data Processing Notes: ---------------------- 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 2.26, 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. Fluorescence data were removed because of severe problems with spikes and higher than usual values at depth suggesting problems with the cable. The data may be obtained from the chief scientist. For details on the processing see processing report: 2010-001-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 !Samp Bott Bott Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Salinity Fl Oxygen: Fl !le_ le_ le:F re:CTD ure:CTD :CTD CTD missi :Disso n:Dis :Bottle ag Dissolv ag !Numb Numb ~ng_ vity: lved: solve ~o ed: ~o !er er Sequ CTD CTD: d:CTD tt Bottle: tt ! ence Volume :Mass le Volume le !---- ---- ---- ------ -------- -------- -------- ----- ------ ----- -------- -- ------- -- *END OF HEADER 381 4 8 2.9 6.9291 32.4176 25.4203 50.9 6.84 297.8 32.4650 0 -99.000 0 380 3 7 4.4 6.9371 32.4599 25.4525 50.9 6.83 297.2 -99.0000 0 -99.000 0 379 8 6 10.6 6.9453 32.4608 25.4521 50.9 6.83 297.5 32.4671 0 -99.000 0 378 7 5 10.7 6.9420 32.4610 25.4527 50.9 6.83 297.2 -99.0000 0 -99.000 0 377 6 4 10.4 6.9412 32.4611 25.4529 50.9 6.83 297.4 -99.0000 0 -99.000 0 376 5 3 10.5 6.9418 32.4611 25.4528 50.9 6.82 297.0 -99.0000 0 6.820 0 375 2 2 10.9 6.9396 32.4613 25.4533 50.9 6.81 296.4 32.4675 0 6.819 0 374 1 1 21.0 6.9408 32.4611 25.4530 50.9 6.82 296.7 32.4664 0 6.820 0