*2022/08/12 08:31:29.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2022/05/21 00:10:00.000 NUMBER OF RECORDS : 1 DATA DESCRIPTION : Bottle:Wire + CTD:Down FILE TYPE : ASCII NUMBER OF CHANNELS : 18 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Sample_Number n/a 23 23 2 Pressure decibar 2.1 2.1 3 Depth metres 2.1 2.1 4 Temperature:Primary 'deg C (ITS90)' 12.3051 12.3051 5 Salinity:T0:C0 PSS-78 25.5028 25.5028 6 Fluorescence:URU:Wetlabs mg/m^3 0.936 0.936 7 Oxygen:Dissolved:SBE mL/L 6.39 6.39 8 Oxygen:Dissolved:SBE umol/kg 280.2 280.2 9 Conductivity:Primary S/m 3.029278 3.029278 10 Chlorophyll:Extracted mg/m^3 1.83 1.83 11 Flag:Chlorophyll:Extracted ' ' 12 Phaeo-Pigment:Extracted mg/m^3 0.78 0.78 13 Nitrate_plus_Nitrite umol/L 5.74 5.74 14 Flag:Nitrate_plus_Nitrite ' ' 15 Silicate umol/L 23.79 23.79 16 Flag:Silicate ' ' 17 Phosphate umol/L 0.724 0.724 18 Flag:Phosphate ' ' $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 ' ' 7 F R4 1 4 -99 ' ' 9 F R4 4 5 -99 ' ' 9 F R4 4 6 -99 ' ' 8 F R4 3 7 -99 ' ' 7 F R4 2 8 -99 ' ' 6 F R4 1 9 -99 ' ' 10 F R4 6 10 -99 ' ' 7 F R4 2 11 ' ' ' ' 3 NQ C ' ' 12 -99 ' ' 7 F R4 2 13 -99 ' ' 7 F R4 2 14 ' ' ' ' 3 NQ C ' ' 15 -99 ' ' 7 F R4 2 16 ' ' ' ' 3 NQ C ' ' 17 -99 ' ' 8 F R4 3 18 ' ' ' ' 3 NQ C ' ' $END $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 *ADMINISTRATION MISSION : 2022-028 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Strait of Georgia Zooplankton SCIENTIST : Young K. PLATFORM : Neocaligus *LOCATION GEOGRAPHIC AREA : Strait of Georgia STATION : 22 EVENT NUMBER : 26 LATITUDE : 49 40.18920 N ! (deg min) LONGITUDE : 124 16.33980 W ! (deg min) WATER DEPTH : 352 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-25 SERIAL NUMBER : 0404 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2022/08/12 08:29:02 1 1 CLEAN 5.3 2022/08/12 08:30:12 1 1 CALIB 12.1 2022/08/12 08:30:34 1 1 REMOVECH 8.2 2022/08/12 08:30:49 1 1 HDREDIT2 3.2 2022/08/12 08:31:29 ? ? $END $REMARKS -CLEAN functions: 2022/08/12 08:30:12 20 Reset #RECS, MIN & MAX values in header. Change character data from " " to "0" in channels Flag:* Delete Empty Channels: 2 deleted. Set header Start and End times from the data. -CALIB parameters: 2022/08/12 08:30:34 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = D:\Telework\2022-028\Processing\doc\2022-028-recal1.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 17 Silicate umol/L 120 0.9040000E+00 0.3000000E-02 0.2500000E+02 Salinity:T0:C0 -REMOVECH 2022/08/12 08:30:49 The following CHANNEL(S) were removed: Date TIME:UTC -HEADER EDITS: 2022/08/12 08:31:29 Applied edit header: D:\Telework\2022-028\Processing\doc\HYDRO\2022-028-bot-hdr.txt Channel 2: Pressure [decibar] Format: F9.4 ==> F7.1 $END *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------- -------- ---- ------ ------------ Silicate umol/L 120 -99 (Salinity:T0:C0) (0.904 0.3E-02 25) $END *COMMENTS Analysis methods: ----------------------- Salinity samples were collected in 200 mL type II glass bottles with disposable nylon inserts and screw caps supplied by Ocean Scientific International Limited. They were analyzed in a temperature-controlled lab on a Guildline 8400B Salinometer standardized with IAPSO standard seawater within 24-27 days after collection. For details, see document QF2022-028SAL*.xlsx. Nutrient samples were collected in plastic tubes and quick frozen in aluminum blocks stored in a -20C freezer. All samples were returned to the Institute of Ocean Sciences and they were analyzed using an Astoria-Pacific Analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke, J. and F. Whitney. For details see document QF2022-028_NUTS*.xlsx. Chlorophyll samples were filtered onto 25mm GF/F filters and stored in cryovials in liquid nitrogen onboard, then transferred to -80C storage in the lab until analysis. Samples were extracted in 90% acetone at -20C for 24 hours in the lab and analyzed on a Turner Trilogy 7200-000 fluorometer calibrated wtih 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 9 weeks after the cruise. Variability is assessed as the CV% (std dev / mean*100). Chlorophyll values ranged from 0.63-16.22 ug/l in 9 samples. 0 samples were below Minimum Limit of Detection (10%, and 0 duplicate pairs had a CV>30%. Our average dataset %CV is 3.89% for 2013 - 2021 so the overall quality of this dataset is good. Minimum Limit of Detection (MLD): The stated MLD for the Turner Trilogy 7200-000 fluorometer is 0.025 ug/L for CHL-a. Samples below the MLD are reported as is and assigned Quality Flag 2 with an associated comment. Where samples are taken in duplicate and the average of the two is