*2026/01/16 09:57:47.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/30 23:33:03.000 END TIME : UTC 2024/01/30 23:33:16.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 67 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.89 2 Depth metres 0.15 19.88 3 Temperature 'deg C (ITS90)' 9.152 9.981 4 Conductivity S/m 1.31612 3.39002 5 Conductance:Specific S/m 1.92351 4.84545 6 Salinity PSS-78 11.17 30.75 7 Speed:Sound m/s 1457.9 1484.93 8 Density kg/m^3 1008.498 1023.733 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 23 LATITUDE : 49 42.98850 N ! (deg min) LONGITUDE : 126 37.84080 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240130_233303 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 67 67 MERGEHDR 1.3 2026/01/16 09:53:44 67 67 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 67 67 CALIB 12.1 2026/01/16 09:56:45 67 67 CLEAN 5.3 2026/01/16 09:57:47 67 67 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 2026/01/16 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 09:57:46 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 9.211 1.31612 1.92351 11.17 1457.90 1008.498 0.45 0.45 9.163 1.48602 2.17490 12.76 1459.65 1009.741 0.75 0.76 9.156 1.51831 2.22261 13.06 1460.00 1009.980 1.05 1.06 9.163 1.60325 2.34645 13.85 1461.00 1010.597 1.35 1.36 9.155 1.76306 2.58093 15.36 1462.81 1011.776 1.65 1.66 9.152 1.84255 2.69755 16.12 1463.73 1012.367 1.95 1.97 9.156 1.88803 2.76385 16.55 1464.28 1012.705 2.25 2.27 9.161 1.91714 2.80605 16.83 1464.63 1012.920 2.55 2.57 9.163 1.93912 2.83805 17.04 1464.90 1013.084 2.85 2.87 9.168 1.97535 2.89062 17.38 1465.35 1013.354 3.15 3.17 9.179 2.03747 2.98061 17.97 1466.11 1013.815 3.45 3.48 9.186 2.11235 3.08948 18.69 1467.02 1014.375 3.75 3.78 9.198 2.18042 3.18798 19.35 1467.87 1014.884 4.05 4.08 9.229 2.30486 3.36682 20.54 1469.44 1015.810 4.35 4.38 9.262 2.44702 3.57099 21.91 1471.25 1016.876 4.65 4.68 9.288 2.59150 3.77907 23.32 1473.06 1017.970 4.95 4.98 9.320 2.69329 3.92380 24.30 1474.39 1018.736 5.25 5.28 9.341 2.75869 4.01663 24.94 1475.25 1019.230 5.55 5.58 9.343 2.81372 4.09646 25.49 1475.93 1019.657 5.85 5.88 9.345 2.83529 4.12764 25.70 1476.20 1019.824 6.15 6.18 9.345 2.84342 4.13947 25.78 1476.30 1019.889 6.45 6.48 9.348 2.85626 4.15785 25.91 1476.47 1019.989 6.75 6.78 9.354 2.87953 4.19093 26.13 1476.78 1020.167 7.05 7.08 9.360 2.91199 4.23750 26.45 1477.19 1020.417 7.35 7.38 9.371 2.95510 4.29883 26.88 1477.76 1020.748 7.65 7.68 9.404 2.97757 4.32741 27.08 1478.13 1020.901 7.95 7.98 9.460 2.99496 4.34553 27.21 1478.50 1020.996 8.25 8.28 9.499 3.07452 4.45595 27.98 1479.59 1021.592 8.55 8.58 9.524 3.09107 4.47670 28.13 1479.87 1021.704 8.85 8.88 9.538 3.10089 4.48912 28.21 1480.03 1021.771 9.15 9.17 9.566 3.12277 4.51717 28.41 1480.38 1021.923 9.45 9.47 9.588 3.13217 4.52786 28.49 1480.56 1021.981 9.75 9.77 9.607 3.15467 4.55780 28.70 1480.89 1022.143 10.05 10.07 9.634 3.18153 4.59306 28.95 1481.30 1022.335 10.35 10.37 9.663 3.19984 4.61561 29.11 1481.61 1022.457 10.65 10.67 9.706 3.22350 4.64396 29.31 1482.02 1022.610 10.95 10.97 9.743 3.23711 4.65865 29.42 1482.29 1022.689 11.25 11.27 9.754 3.25623 4.68467 29.60 1482.55 1022.831 11.55 11.57 9.757 3.26243 4.69317 29.66 1482.64 1022.879 11.85 11.87 9.751 3.25919 4.68934 29.63 1482.59 1022.860 12.15 12.17 9.754 3.26809 4.70170 29.72 1482.71 1022.928 12.45 12.46 9.777 3.29773 4.74131 30.00 1483.14 1023.144 12.75 12.76 9.791 3.31173 4.75943 30.13 1483.36 1023.244 13.05 13.06 9.784 3.32539 4.78003 30.27 1483.51 1023.358 13.35 13.36 9.756 3.32851 4.78834 30.33 1483.48 1023.407 13.65 13.66 9.735 3.32835 4.79111 30.34 1483.43 1023.424 13.95 13.96 9.733 3.32756 4.79013 30.34 1483.42 1023.420 14.25 14.26 9.711 3.33019 4.79700 30.38 1483.40 1023.461 14.55 14.56 9.687 3.33105 4.80152 30.41 1483.35 1023.488 14.85 14.85 9.680 3.33004 4.80109 30.41 1483.32 1023.487 15.15 15.15 9.719 3.33327 4.80036 30.41 1483.47 1023.482 15.45 15.45 9.766 3.34247 4.80716 30.46 1483.71 1023.518 15.75 15.75 9.787 3.35418 4.82104 30.56 1483.91 1023.594 16.05 16.05 9.789 3.35524 4.82225 30.57 1483.94 1023.602 16.35 16.35 9.774 3.35904 4.82975 30.62 1483.95 1023.645 16.65 16.65 9.783 3.35925 4.82884 30.61 1483.98 1023.641 16.95 16.95 9.841 3.36981 4.83592 30.67 1484.27 1023.677 17.25 17.25 9.861 3.37252 4.83710 30.68 1484.36 1023.684 17.55 17.54 9.869 3.37368 4.83772 30.69 1484.40 1023.688 17.85 17.84 9.868 3.37480 4.83935 30.70 1484.41 1023.698 18.15 18.14 9.875 3.37630 4.84060 30.71 1484.45 1023.706 18.45 18.44 9.880 3.37587 4.83922 30.70 1484.47 1023.699 18.75 18.74 9.879 3.37533 4.83859 30.69 1484.46 1023.697 19.05 19.04 9.885 3.37683 4.84002 30.70 1484.50 1023.706 19.35 19.34 9.908 3.38093 4.84266 30.73 1484.62 1023.720 19.65 19.63 9.923 3.38159 4.84151 30.72 1484.67 1023.714 19.89 19.88 9.981 3.39002 4.84545 30.75 1484.93 1023.733