*2026/01/16 09:47:03.10 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/09 19:21:19.000 END TIME : UTC 2023/11/09 19:21:26.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 38 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 11.36 2 Depth metres 0.15 11.37 3 Temperature 'deg C (ITS90)' 10.348 13.046 4 Conductivity S/m 0.32692 3.71437 5 Conductance:Specific S/m 0.45876 4.88514 6 Salinity PSS-78 2.42 31.36 7 Speed:Sound m/s 1451.74 1496.13 8 Density kg/m^3 1001.538 1023.627 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 62 LATITUDE : 49 3.41850 N ! (deg min) LONGITUDE : 124 50.41880 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231109_192119 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 38 38 MERGEHDR 1.3 2026/01/15 13:41:47 38 38 HDREDIT2 3.2 2026/01/15 14:00:55 ? ? REMOVECH 8.2 2026/01/15 14:01:18 38 38 CALIB 12.1 2026/01/16 09:46:05 38 38 CLEAN 5.3 2026/01/16 09:47:03 38 38 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:55 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:05 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 09:47:01 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 10.462 0.33490 0.47219 2.49 1452.19 1001.610 0.45 0.46 10.348 0.33222 0.46992 2.48 1451.74 1001.612 0.75 0.76 10.631 0.32692 0.45876 2.42 1452.77 1001.538 1.05 1.07 10.799 0.36835 0.51448 2.73 1453.81 1001.766 1.35 1.37 10.839 0.40467 0.56457 3.01 1454.32 1001.984 1.65 1.68 11.226 0.50438 0.69615 3.77 1456.73 1002.532 1.95 1.98 11.596 1.11163 1.51878 8.72 1464.09 1006.321 2.25 2.29 11.935 2.07027 2.80257 16.96 1475.16 1012.646 2.55 2.59 12.181 2.63119 3.53839 21.91 1481.92 1016.430 2.85 2.89 12.346 2.80369 3.75364 23.39 1484.26 1017.548 3.15 3.19 12.426 2.93951 3.92710 24.59 1485.96 1018.462 3.45 3.49 12.450 3.00377 4.01034 25.17 1486.73 1018.905 3.75 3.79 12.562 3.11780 4.15022 26.15 1488.29 1019.643 4.05 4.09 12.716 3.34499 4.43448 28.15 1491.19 1021.163 4.35 4.39 12.780 3.34401 4.42562 28.09 1491.34 1021.108 4.65 4.69 12.798 3.42140 4.52589 28.80 1492.25 1021.653 4.95 4.99 12.830 3.57938 4.73093 30.25 1494.08 1022.772 5.25 5.29 12.976 3.61104 4.75436 30.43 1494.79 1022.884 5.55 5.58 13.017 3.62689 4.77007 30.54 1495.07 1022.966 5.85 5.88 13.034 3.64306 4.78926 30.68 1495.29 1023.071 6.15 6.18 13.042 3.64993 4.79729 30.74 1495.39 1023.116 6.45 6.48 13.037 3.65230 4.80094 30.77 1495.41 1023.138 6.75 6.78 13.033 3.65895 4.81018 30.83 1495.48 1023.190 7.05 7.08 13.044 3.66727 4.81976 30.90 1495.60 1023.243 7.35 7.38 13.039 3.67425 4.82955 30.97 1495.67 1023.299 7.65 7.68 13.046 3.68730 4.84579 31.09 1495.84 1023.389 7.95 7.98 13.034 3.69110 4.85240 31.13 1495.86 1023.428 8.25 8.27 13.031 3.68915 4.85020 31.12 1495.83 1023.418 8.55 8.57 13.014 3.68769 4.85046 31.12 1495.78 1023.422 8.85 8.87 13.007 3.69109 4.85579 31.15 1495.81 1023.454 9.15 9.17 13.020 3.69410 4.85809 31.17 1495.88 1023.466 9.45 9.47 13.014 3.69878 4.86503 31.22 1495.92 1023.506 9.75 9.77 13.010 3.70427 4.87271 31.27 1495.98 1023.551 10.05 10.07 13.018 3.70577 4.87368 31.28 1496.02 1023.556 10.35 10.37 13.016 3.70619 4.87446 31.29 1496.02 1023.562 10.65 10.67 13.023 3.71208 4.88139 31.34 1496.11 1023.601 10.95 10.96 13.019 3.71437 4.88484 31.36 1496.13 1023.621 11.36 11.37 12.999 3.71265 4.88514 31.36 1496.07 1023.627