*2013/10/01 09:17:45.68 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2010/06/18 20:42:48.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 2 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 1361EB1F NUMBER OF CHANNELS : 24 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 590 591 2 Bottle_Number n/a 2 3 3 Bottle:Firing_Sequence n/a 1 2 4 Pressure:CTD dbar 5.7 39.9 5 Temperature:CTD deg_C_(ITS90) 8.2009 8.5504 6 Salinity:Practical:CTD PSS-78 32.5787 32.5835 7 Sigma-t:CTD kg/m^3 25.3173 25.3731 8 Transmissivity:CTD %/m 53.2 54.2 9 Oxygen:Dissolved:CTD:Volume ml/l 6.58 6.65 10 Oxygen:Dissolved:CTD:Mass µmol/kg 286.6 289.7 11 Fluorescence:CTD:Seapoint mg/m^3 0.21 1.073 12 Salinity:Bottle PSS-78 32.5788 32.5788 13 Flag:Salinity:Bottle n/a 14 Oxygen:Dissolved:Bottle:Volume ml/l 4.303 4.303 15 Flag:Oxygen:Dissolved:Bottle n/a 16 Nitrate_plus_Nitrite:Bottle µmol/l 10.4 10.4 17 Flag:Nitrate_plus_Nitrite:Bottle n/a 18 Phosphate:Bottle µmol/l 1.04 1.04 19 Flag:Phosphate:Bottle n/a 20 Silicate:Bottle µmol/l 14.9 14.9 21 Flag:Silicate:Bottle n/a 22 Chlorophyll:Extracted:Bottle mg/m^3 0.32 0.49 23 Flag:Chlorophyll:Extracted:Bottle n/a 24 Phaeo-Pigment:Extracted:Bottle mg/m^3 0.6E-01 0.12 $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 ' ' 3 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 ' ' 14 -99 ' ' 8 F R4 3 15 0 ' ' 3 NQ C ' ' 16 -99 ' ' 6 F R4 1 17 0 ' ' 3 NQ C ' ' 18 -99 ' ' 7 F R4 2 19 0 ' ' 3 NQ C ' ' 20 -99 ' ' 6 F R4 1 21 0 ' ' 3 NQ C ' ' 22 -99 ' ' 7 F R4 2 23 0 ' ' 3 NQ C ' ' 24 -99 ' ' 7 F R4 2 $END *ADMINISTRATION MISSION : 2010-13 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 : P23 EVENT NUMBER : 79 LATITUDE : 49 46.01000 N ! (deg min) LONGITUDE : 141 39.91000 W ! (deg min) WATER DEPTH : 4051 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item *COMMENTS Sample Number 591: Oxygen:Dissolved:Bottle - endpoint overshot, value looks oddly low. Analysis methods: ----------------- Chlorophyll and Phaeo-Pigments samples were analyzed at sea using a Chemistry Turner Designs 10AU fluorometer which was calibrated on May 12, 2010 using pure chlorophyll a. Chlorophyll and Phaeo-Pigments precision was determined by analyzing replicate samples drawn from one Niskin. For details see file 2010-13_CHL.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 365nm filter custom built by Scripps Institution of Oceanography. For details see file 2010-13_OXY.pdf 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 information on precision see 2010-13_SAL.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 details on nutrient precision see file 2010-13_NUT.pdf. NOTE: FROZEN SAMPLES WERE ACCIDENTALLY THAWED FOR 2 DAYS AT ROOM TEMPERATURE THEN STORED COOL UNTIL ANALYZED. 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 2010-13_DMS_Report.pdf. For duplicates see 2010-13_DMS.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 2010-13_DIC.pdf, 2010-13_ALK.pdf, and 2010-13_pH.pdf respectively. References: 1. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 2. Culberson, C.H. 1991. Dissolved oxygen. In WOCE Operations Manual. Volume 3: The Observational Program. Section 3.1: WOCE Hydrographic Program. Part 3.1.3: WHP Operations and Methods. WHP Office Report WHPO 91-1 / WOCE Report No. 68/91. 3. Barwell-Clarke, J. and F. Whitney. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp. --------------------------------------------------------------------- Fluorescence, Transmissivity and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. ********************************************************************************** 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 see the processing report 2010-13-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- 17 --18-- 19 --20- 21 --22-- 23 --24-- !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores Salinity Fl Oxygen: Fl Nitra Fl Phosph Fl Silic Fl Chloro Fl Phaeo- !le_ tt tt re:CTD ure:CTD : CTD missi :Disso n:Dis cence: :Bottle ag Dissolv ag te_pl ag ate: ag ate: ag phyll: ag Pigmen !Numb ~u ~u Practica vity: lved: solve CTD: ~o ed: ~o ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o t:Extr !er mb en l:CTD CTD CTD: d:CTD Seapoin tt Bottle: tt ite:B tt tt e tt ted: tt acted: ! er ce Volume :Mass t le Volume le ottle le le le Bottle le Bottle !---- -- -- ------ -------- -------- -------- ----- ------ ----- ------- -------- -- ------- -- ----- -- ------ -- ----- -- ------ -- ------ *END OF HEADER 591 3 2 5.7 8.5504 32.5787 25.3173 53.2 6.65 289.7 0.210 32.5788 4.303 4 10.4 1.04 14.9 0.32 0.06 590 2 1 39.9 8.2009 32.5835 25.3731 54.2 6.58 286.6 1.073 -99.0000 -99.000 -99.0 -99.00 -99.0 0.49 0.12