*2013/09/27 11:56:45.54 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 2010/08/23 21:39:04.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 19 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII CRC : 695D6AA1 NUMBER OF CHANNELS : 25 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 234 252 2 Bottle_Number n/a 1 19 3 Bottle:Firing_Sequence n/a 1 19 4 Pressure:CTD dbar 2 300.9 5 Temperature:CTD deg_C_(ITS90) 4.7638 15.1267 6 Salinity:Practical:CTD PSS-78 32.4439 33.8523 7 Sigma-t:CTD kg/m^3 24.0252 26.8177 8 Transmissivity:CTD %/m 47.4 61.5 9 Oxygen:Dissolved:CTD:Volume ml/l 2.56 6.81 10 Oxygen:Dissolved:CTD:Mass µmol/kg 111.4 296.5 11 Fluorescence:CTD:Seapoint mg/m^3 0.18E-01 3.076 12 PAR:CTD µE/m^2/sec 0 383 13 Salinity:Bottle PSS-78 32.4782 32.4782 14 Flag:Salinity:Bottle n/a 15 Nitrate_plus_Nitrite:Bottle µmol/l 2.1 35.4 16 Flag:Nitrate_plus_Nitrite:Bottle n/a 17 Phosphate:Bottle µmol/l 0.58 2.55 18 Flag:Phosphate:Bottle n/a 19 Silicate:Bottle µmol/l 4.3 66.8 20 Flag:Silicate:Bottle n/a 21 Chlorophyll:Extracted:Bottle mg/m^3 0.12 0.58 22 Flag:Chlorophyll:Extracted:Bottle n/a 23 Phaeo-Pigment:Extracted:Bottle mg/m^3 0.1 0.32 24 Dimethyl_Sulphide:Bottle nmol/l 0 21.83 25 Flag:Dimethyl_Sulphide:Bottle n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I ' ' 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 ' ' 9 F ' ' 4 12 -99 ' ' 7 F ' ' 1 13 -99 ' ' 9 F R4 4 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 6 F R4 1 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 6 F R4 1 20 0 ' ' 3 NQ C ' ' 21 -99 ' ' 7 F R4 2 22 0 ' ' 3 NQ C ' ' 23 -99 ' ' 7 F R4 2 24 -99 ' ' 7 F R4 2 25 0 ' ' 3 NQ C ' ' $END *ADMINISTRATION MISSION : 2010-14 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 : P16 EVENT NUMBER : 48 LATITUDE : 49 17.01000 N ! (deg min) LONGITUDE : 134 39.97000 W ! (deg min) WATER DEPTH : 3636 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS Analysis methods: ----------------------- Chlorophyll samples were filtered onto 25mm GF/F filters and stored in glass scintillation vials at -20C prior to analysis. Samples were extracted in 90% acetone for 24 hours and analyzed at sea on a Turner 10AU fluorometer which is calibrated annually with commercially pure chlorophyll a (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen 1965). Chlorophyll and Phaeo-Pigments precision was determined by analyzing replicate samples drawn from one Niskin. For details see file 2010-14_CHL.pdf. Phaeopigment data are provided for information only and no quality flags are assigned to them. 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 2010-14_OXY.pdf Salinity samples were collected in glass bottles and analyzed at IOS on a Guildline model 8400B Autosal standardized with IAPSO standard seawater. For information on duplicates see file 2010-14_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 duplicates and precision see file 2010-14_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 2010-14_DMS_Report.pdf. For details on duplicates see 2010-14_DMS.pdf References: 1. Holm-Hansen, O., C. J. Lorenzen, R.W. Holmes and J.D.H. Strickland. 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., and R. T. Williams. 1991. A comparison of methods for the determination of dissolved oxygen in seawater. Report No. WHPO 91-2. WOCE Hydrographic Programme Office. Woods Hole Oceanographic Institution, Woods Hole, Mass. 4. 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. The quality of the Oxygen:Dissolved:CTD data is lower than usual for both sensors because recalibration was based on observations from very few casts, and the fits of bottles against CTD produced significantly different fits for some casts from others. Similar problems were found in sensor #1176 (CTD #0506) on some other 2010 cruises and appear to be associated with CTD communication problems. For Oxygen:Dissolved:CTD sensor #1438 values below 2200 dbar were replaced by pad values because there is evidence of significant hysteresis. ************************************************************************** In June 2011 it was discovered that the wrong information was used for recalibration of the Oxygen:Dissolved:CTD sensor. Sensor #1483 was actually used for this cruise, rather than sensor #1438 as originally recorded. The Oxygen:Dissolved:CTD channel was reprocessed after an initial study determined that the differences were significant. A new recalibration scheme was found by rerunning the bottle comparison. The files were then merged with all the other channels from the original processing. The hysteresis noted in the original processing remains, and the quality of the data is still considered of lower quality than usual. For details see the notes at the end of the processing report 2010-14-proc.pdf. --------------------------------------------------------------------- For details on the processing see processing report: 2010-14-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-- 25 !Samp Bo Bo Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluoresc PAR: Salinity Fl Nitra Fl Phosph Fl Silic Fl Chloro Fl Phaeo- Dimeth Fl !le_ tt tt re:CTD ure:CTD : CTD missi :Disso n:Dis ence: CTD :Bottle ag te_pl ag ate: ag ate: ag phyll: ag Pigmen yl_ ag !Numb ~u ~u Practica vity: lved: solve CTD: ~o ~Nitr ~o Bottle ~o Bottl ~o Extrac ~o t:Extr Sulphi ~o !er mb en l:CTD CTD CTD: d:CTD Seapoint tt ite:B tt tt e tt ted: tt acted: de: tt ! er ce Volume :Mass le ottle le le le Bottle le Bottle Bottle le !---- -- -- ------ -------- -------- -------- ----- ------ ----- -------- ------ -------- -- ----- -- ------ -- ----- -- ------ -- ------ ------ -- *END OF HEADER 252 19 18 5.5 15.1140 32.4776 24.0298 50.0 5.91 257.8 0.6280 219.2 -99.0000 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 251 18 17 5.6 15.1183 32.4775 24.0288 50.1 5.91 257.6 0.6010 220.0 32.4782 -99.0 -99.00 -99.0 -99.00 -99.00 -99.00 250 17 16 5.5 15.1210 32.4774 24.0281 50.1 5.91 257.6 0.5870 235.0 -99.0000 -99.0 -99.00 -99.0 0.36 6 0.10 -99.00 249 16 9 35.1 10.5040 32.6266 25.0401 52.0 6.81 296.5 3.0510 27.2 -99.0000 -99.0 -99.00 -99.0 0.58 6 0.32 -99.00 248 15 7 45.6 9.5656 32.6606 25.2229 54.1 6.76 294.3 2.9860 9.8 -99.0000 -99.0 -99.00 -99.0 0.52 6 0.26 -99.00 247 14 19 2.0 15.1155 32.4721 24.0252 47.4 5.92 258.1 0.2960 383.0 -99.0000 2.3 0.60 5.0 0.39 0.10 15.85 246 13 15 5.4 15.1267 32.4773 24.0268 50.1 5.92 258.2 0.5220 243.1 -99.0000 2.3 0.60 5.0 0.39 0.11 18.30 245 12 14 10.6 15.0844 32.4778 24.0364 50.0 5.91 257.5 1.0830 157.6 -99.0000 2.2 6 0.60 6 5.0 6 0.38 0.11 14.67 244 11 13 15.6 15.0221 32.4779 24.0499 50.0 5.92 257.9 1.6940 122.8 -99.0000 2.1 0.58 4.7 0.36 0.12 16.04 243 10 12 20.9 14.8736 32.4726 24.0777 50.7 5.95 259.6 1.9890 71.5 -99.0000 2.1 0.60 4.7 0.41 0.16 16.92 6 242 9 11 25.3 12.7728 32.4439 24.4838 51.9 6.48 282.5 2.4040 43.4 -99.0000 3.3 0.68 4.3 0.45 0.21 21.83 241 8 10 30.3 11.3513 32.4794 24.7768 52.3 6.74 293.7 2.6800 33.9 -99.0000 4.2 0.73 5.1 0.48 6 0.26 20.08 240 7 8 40.9 9.7610 32.6546 25.1864 53.2 6.80 296.2 3.0760 12.2 -99.0000 7.0 0.86 11.2 0.58 0.29 10.18 239 6 6 50.2 9.1290 32.6759 25.3044 55.2 6.67 290.3 2.7760 5.5 -99.0000 7.6 0.95 11.5 0.47 0.23 2.21 238 5 5 75.7 7.4773 32.7200 25.5838 59.8 6.63 288.6 1.0330 1.1 -99.0000 9.6 1.09 13.1 0.23 0.15 0.37 237 4 4 100.7 6.7548 32.8143 25.7557 61.0 6.44 280.2 0.2740 0.3 -99.0000 12.6 1.20 14.8 0.12 0.10 0.30 236 3 3 175.7 6.5723 33.8126 26.5667 61.4 4.54 197.6 0.0260 0.0 -99.0000 24.0 1.76 36.5 -99.00 -99.00 0.00 235 2 2 200.6 6.0923 33.8071 26.6243 61.4 4.28 186.3 0.0180 0.0 -99.0000 26.4 1.92 42.0 -99.00 -99.00 0.00 234 1 1 300.9 4.7638 33.8523 26.8177 61.5 2.56 111.4 0.0730 0.0 -99.0000 35.4 6 2.55 6 66.8 6 -99.00 -99.00 0.00