*2017/02/14 14:36:54.28 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/11/02 19:52:00.000 NUMBER OF RECORDS : 1 DATA DESCRIPTION : Bottle:Wire FILE TYPE : ASCII NUMBER OF CHANNELS : 12 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- -------- -------------- -------------- 1 Sample_Number n/a 91 91 2 Depth:Nominal metres 7 7 3 Salinity:Bottle PSS-78 28.4619 28.4619 4 Flag:Salinity:Bottle ' ' 5 Chlorophyll:Extracted mg/m^3 0.83 0.83 6 Flag:Chlorophyll:Extracted ' ' 7 Nitrate_plus_Nitrite umol/L 13.55 13.55 8 Flag:Nitrate_plus_Nitrite ' ' 9 Silicate umol/L 31.02 31.02 10 Flag:Phosphate ' ' 11 Phosphate umol/L 1.51 1.51 12 Flag:Silicate ' ' $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 5 I I 0 2 -99 ' ' 7 F R4 1 3 -99 ' ' 9 F R4 4 4 ' ' ' ' 3 NQ C ' ' 5 -99 ' ' 7 F R4 2 6 ' ' ' ' 3 NQ C ' ' 7 -99 ' ' 7 F R4 2 8 ' ' ' ' 3 NQ C ' ' 9 -99 ' ' 7 F R4 2 10 ' ' ' ' 3 NQ C ' ' 11 -99 ' ' 8 F R4 3 12 ' ' ' ' 3 NQ C ' ' $END $REMARKS Flag channels were initialized with zeros. Non-zero values have the following significance: ---------------------------------------------------------------------------------- 1 = Sample for this measurement was collected but not analyzed. Sample lost. 2 = Acceptable Measurement 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 *ADMINISTRATION MISSION : 2016-40 AGENCY : PBS, Ecosystem Science Division, Nanaimo, BC PROJECT : Basin & Coastal Scale Indicators SCIENTIST : Morris J. PLATFORM : Frosti *LOCATION STATION : IVI11 EVENT NUMBER : 91 LATITUDE : 50 29.53000 N ! (deg min) LONGITUDE : 127 48.99300 W ! (deg min) WATER DEPTH : 135 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.0 2017/02/14 13:55:52 1 1 CLEAN 5.2.2 2017/02/14 14:35:14 1 1 ADTIMCH 4.4 2017/02/14 14:36:23 1 1 REMOVECH 8.2 2017/02/14 14:36:28 1 1 HDREDIT2 3.1.1 2017/02/14 14:36:54 ? ? $END $REMARKS -CLEAN functions: 2017/02/14 14:35:13 20 Reset #RECS, MIN & MAX values in header. Change character data from " " to "2" in channels Flag:* Delete Empty Channels: 6 deleted. Set event to last 4 characters of file name Set header Start and End times from the data. -The following ADTIMCH parameters were used. Add 7.00 hours to times in header file section -REMOVECH 2017/02/14 14:36:28 The following CHANNEL(S) were removed: Date TIME:UTC -HEADER EDITS: 2017/02/14 14:36:54 Applied edit header: P:\Cruise_Data_Processing\2016-40\Processing\doc\HYDRO\2016-40-bot-hdr2.txt Channel 2: Depth:Nominal [metres] Units: decibar ==> metres $END *COMMENTS Sample_Number 91: CHL: %CV>15 Samples were gathered during CTD casts using a Niskin bottle attached above the CTD. The CTD either malfunctioned for this cast or the data were lost. The depth of the samples is estimated based on studies of casts for which CTD data are available. 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 at -20C for 24 hours in the lab and analyzed on a Turner 10AU fluorometer calibrated with commercially pure chlorophyll a standard (Sigma). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations (Holm-Hansen et al 1965). Chlorophyll samples were analyzed at IOS in Room 2423 within 5 weeks of the cruise. The average of two samples is reported. Variability is assessed as the CV% (std dev / mean*100). Flags and comments apply to chlorophyll values only. Precision Statement: Chlorophyll values ranged from 0.18-1.29 ug/l. Average %CV for this cruise was 6.68% with 2 out of 33 duplicate pairs having a CV>15% and 0 out of 33 duplicate pairs having a CV>50%. Our average dataset %CV is 2.83 % for 2013 - 2015. This dataset was within 1 standard deviation of this 3 year average. For details see worksheet “CV%” in file QF2016-40CHL*.xlsx. Salinity samples were collected in 200 mL type ll glass bottles with disposable nylon inserts and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab at IOS on a Guildline 8400B Salinometer (S/N 68572) standardized with IAPSO standard seawater approximately 22 to 29 days after collection. There were no duplicates taken, so there is no precision analysis. For details see document QF2016-40SAL*.xls. Nutrient samples were collected in plastic tubes and quick frozen in aluminum blocks stored in a -20C freezer. All analysis was performed on frozen samples. All analysis was performed on frozen samples. They were analyzed using an Astoria analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke and Whitney. For details including a duplicate analysis, see document QF2016-40nuts*.xls. References: 1. 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. 2. 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. * For PDF versions of these papers see folder \\Cruise_Data\DOCUMENTS\Analysis Reference Papers --------------------------------------------------------------------------------- !-1-- --2--- ---3---- 4- --5--- 6- --7--- 8- --9--- 10 ---11-- 12 !Samp Depth: Salinity Fl Chloro Fl Nitrat Fl Silica Fl Phospha Fl !le_ Nomina :Bottle ag phyll: ag e_ ag te ag te ag !Numb l ~o Extrac ~a plus_ ~t ~p ~i !er tt ted ct Nitrit ri ha ca ! le ed e te te te !---- ------ -------- -- ------ -- ------ -- ------ -- ------- -- *END OF HEADER 91 7.0 28.4619 2 0.83 36 13.55 2 31.02 2 1.510 2