*2023/01/25 11:06:51.56 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2022/07/16 01:48:59.000 NUMBER OF RECORDS : 1 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII NUMBER OF CHANNELS : 20 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------------- --------------- -------------- -------------- 1 Pressure decibar 5 5 2 Depth metres 5 5 3 Temperature:Primary 'deg C (ITS90)' 15.3021 15.3021 4 Salinity:T0:C0 PSS-78 31.4709 31.4709 5 Fluorescence:URU:Seapoint mg/m^3 0.898 0.898 6 Oxygen:Dissolved:SBE mL/L 5.76 5.76 7 Oxygen:Dissolved:SBE umol/kg 251.4 251.4 8 Conductivity:Primary S/m 3.929257 3.929257 9 Sample_Number n/a 57 57 10 Chlorophyll:Extracted mg/m^3 0.81 0.81 11 Flag:Chlorophyll:Extracted n/a 12 Phaeo-Pigment:Extracted mg/m^3 0.27 0.27 13 Salinity:Bottle PSS-78 31.4713 31.4713 14 Flag:Salinity:Bottle n/a 15 Nitrate_plus_Nitrite umol/L 0 0 16 Flag:Nitrate_plus_Nitrite n/a 17 Silicate umol/L 4.06 4.06 18 Flag:Silicate n/a 19 Phosphate umol/L 0.293 0.293 20 Flag:Phosphate n/a $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 1 2 -99 ' ' 7 F R4 1 3 -99 ' ' 9 F R4 4 4 -99 ' ' 9 F R4 4 5 -99 ' ' ' ' F8.3 R4 ' ' 6 -99 ' ' 7 F R4 2 7 -99 ' ' 6 F R4 1 8 -99 ' ' 10 F R4 6 9 -99 ' ' 5 I I 0 10 -99 ' ' 7 F R4 2 11 0 ' ' 3 NQ C ' ' 12 -99 ' ' 7 F R4 2 13 -99 ' ' 9 F R4 4 14 0 ' ' 3 NQ C ' ' 15 -99 ' ' 7 F R4 2 16 0 ' ' 3 NQ C ' ' 17 -99 ' ' 7 F R4 2 18 0 ' ' 3 NQ C ' ' 19 -99 ' ' 8 F R4 3 20 0 ' ' 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 : 2022-010 AGENCY : PBS, Ecosystem Sciences Division, Nanaimo, B.C. COUNTRY : Canada PROJECT : Integrated Pelagic Ecosystem Survey SCIENTIST : King J. PLATFORM : Nordic Pearl *LOCATION STATION : 4810 EVENT NUMBER : 57 LATITUDE : 49 13.31280 N ! (deg min) LONGITUDE : 126 57.55920 W ! (deg min) WATER DEPTH : 187 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-25plus SERIAL NUMBER : 0251091 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2023/01/25 11:05:31 1 1 CLEAN 5.3 2023/01/25 11:05:50 1 1 CHGUNITS 3.2 2023/01/25 11:05:59 1 1 REORDER 1.3.1 2023/01/25 11:06:07 ? ? REMOVECH 8.2 2023/01/25 11:06:22 1 1 HDREDIT2 3.2 2023/01/25 11:06:51 ? ? $END $REMARKS -CLEAN functions: 2023/01/25 11:05:50 20 Reset #RECS, MIN & MAX values in header. Change character data from " " to "0" in channels Flag:* Delete Empty Channels: 3 deleted. Set header Start and End times from the data. -CHANGE units: Temperature reference channel: Temperature:Draw Salinity reference channel: Salinity:T0:C0 [PSS-78] - No units changed -REMOVECH 2023/01/25 11:06:22 The following CHANNEL(S) were removed: Date TIME:UTC -HEADER EDITS: 2023/01/25 11:06:51 Applied edit header: D:\Telework\2022-010\Processing\doc\HYDRO\2022-010-bot-hdr.txt Channel 1: Pressure [decibar] Format: F9.4 ==> F7.1 Channel 11: Flag:Chlorophyll:Extracted [n/a] Units: ==> n/a Pad: ' ' ==> 0 Channel 14: Flag:Salinity:Bottle [n/a] Units: ==> n/a Pad: ' ' ==> 0 Channel 16: Flag:Nitrate_plus_Nitrite [n/a] Units: ==> n/a Pad: ' ' ==> 0 Channel 18: Flag:Silicate [n/a] Units: ==> n/a Pad: ' ' ==> 0 Channel 20: Flag:Phosphate [n/a] Units: ==> n/a Pad: ' ' ==> 0 $END *COMMENTS Analysis methods: ----------------- Chlorophyll samples were filtered onto 25mm GF/F filters after collection, and immediately frozen and stored in a -80C freezer until analysis. All samples were returned to the Institute of Ocean Sciences after collection. Samples were analyzed on a Turner Trilogy7200-000 fluorometer, using methods described in Holm-Hansen et al (1965). Fluorescence readings taken before and after acidification were used to calculate chlorophyll and phaeopigment concentrations. Chlorophyll samples were analyzed at IOS in Room 2423 5 weeks after the cruise. Flags and comments apply to chlorophyll values only. No flags or comments are assigned for Phaeo-Pigment values. For details on methodology, see document QF2022-010_CHL*.xlsx Methodology sheet. 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 on a Guildline 8400B Salinometer standardized with IAPSO standard seawater 39-56 days after collection. For details including a duplicate analysis, see document QF2022-010_SAL*.xlsx. Nutrient samples were collected in plastic tubes and quick frozen in aluminum blocks stored in a -20C freezer. For samples 400m and deeper a second set of samples are collected and stored cool for silicate analysis. All samples were returned to the Insitute of Ocean Sciences and they were analyzed using an Astoria-Pacific Analyzer following methods described in IOS Nutrient Methods (1996) Barwell-Clarke and Whitney. For details including a duplicate analysis, see document QF2021-010nuts*.xlsx. Oxygen samples were analyzed in the laboratory at the Institute of Ocean Sciences using an automated Winkler titration system (Metrohm Dosimat model 876, a UV light source and detectorwith a 365 nm filter controlled by LVO2_876 software designed and constructed by Scripps Institution of Oceanography) with modifications based on Carpenter (1965) and adhering to WOCE protocols (Culberson 1991). For details, including a precision analysis, see document QF2022-010_OXY.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. Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143. 3. Culberson, C.H. 1991. Dissolved oxygen. WOCE Hydrographic Programme Operations and Methods (July 1991). 15pp. 4. 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 --------------------------------------------------------------------------------- CTD Data Processing Notes: -------------------------- Two different CTDs were used during this cruise. CTD #1091 was used for events #1-139 and the data quality looked good. CTD #1123 was used for events #149-214 and data quality was lower with unstable features that were likely due to intermittent flow rate variability. Oxygen:Dissolved, Conductivity and Fluorescence:URU:Seapoint data are nominal and unedited except that some records were removed in editing temperature and salinity. The comparison of CTD salinity with bottle samples was limited to 5m and had a lot of scatter, but median differences suggest that calibration of sensors used on both CTDs was reasonably good. The comparison of dissolved oxygen was limited to 5m where DO values were all high. No recalibration was applied due to the limitations of the comparison. This was the first use of this equipment since the sensors were serviced at the factory, so little calibration drift is expected in salinity, but SBE dissolved oxygen is likely reading slightly low. The fluorometer used during events #149 to #214 malfunctioned, so that channel was removed. For details on the processing see document: 2022-010_Processing_Report.doc. --------------------------------------------------------------------------------- !--1--- --2--- ---3---- ---4---- ---5--- --6--- --7-- ----8---- -9-- --10-- 11 --12-- ---13--- 14 --15-- 16 --17-- 18 ---19-- 20 !Pressu Depth Temperat Salinity Fluores Oxygen Oxyge Conductiv Samp Chloro Fl Phaeo- Salinity Fl Nitrat Fl Silica Fl Phospha Fl !re ure: :T0:C0 cence: : n: ity: le_ phyll: ag Pigmen :Bottle ag e_ ag te ag te ag ! Primary URU: Dissol Disso Primary Numb Extrac ~a t: ~o plus_ ~t ~i ~p ! Seapoin ved: lved: er ted ct Extrac tt Nitrit ri ca ha ! t SBE SBE ed ted le e te te te !------ ------ -------- -------- ------- ------ ----- --------- ---- ------ -- ------ -------- -- ------ -- ------ -- ------- -- *END OF HEADER 5.0 5.0 15.3021 31.4709 0.898 5.76 251.4 3.929257 57 0.81 6 0.27 31.4713 6 0.00 0 4.06 0 0.293 0