*2026/01/16 09:57:48.63 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/23 19:00:07.000 END TIME : UTC 2024/04/23 19:00:31.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 122 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.44 2 Depth metres 0.15 36.28 3 Temperature 'deg C (ITS90)' 9.946 11.816 4 Conductivity S/m 3.3638 3.5099 5 Conductance:Specific S/m 4.56838 5.02177 6 Salinity PSS-78 29.01 31.99 7 Speed:Sound m/s 1486.06 1489.15 8 Density kg/m^3 1021.978 1024.775 $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 : 75 LATITUDE : 48 54.63650 N ! (deg min) LONGITUDE : 125 28.43510 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240423_190007 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 122 122 MERGEHDR 1.3 2026/01/16 09:53:49 122 122 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:14 122 122 CALIB 12.1 2026/01/16 09:56:48 122 122 CLEAN 5.3 2026/01/16 09:57:48 122 122 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.815 3.37338 4.58151 29.10 1489.15 1022.049 0.45 0.45 11.816 3.36380 4.56838 29.01 1489.04 1021.978 0.75 0.75 11.815 3.36540 4.57066 29.03 1489.07 1021.992 1.05 1.05 11.799 3.36722 4.57516 29.06 1489.05 1022.019 1.35 1.35 11.765 3.36501 4.57643 29.06 1488.94 1022.031 1.65 1.65 11.765 3.36978 4.58282 29.11 1489.00 1022.067 1.95 1.94 11.760 3.36839 4.58154 29.10 1488.98 1022.062 2.25 2.24 11.738 3.36708 4.58262 29.10 1488.91 1022.072 2.55 2.54 11.709 3.36692 4.58592 29.12 1488.84 1022.094 2.85 2.84 11.664 3.36753 4.59242 29.17 1488.74 1022.135 3.15 3.14 11.615 3.36785 4.59906 29.21 1488.62 1022.178 3.45 3.44 11.533 3.36886 4.61068 29.28 1488.43 1022.250 3.75 3.74 11.471 3.36828 4.61771 29.32 1488.26 1022.296 4.05 4.04 11.405 3.37008 4.62858 29.39 1488.12 1022.363 4.35 4.34 11.324 3.37430 4.64476 29.50 1487.96 1022.461 4.65 4.64 11.215 3.37986 4.66643 29.64 1487.75 1022.591 4.95 4.94 11.156 3.38285 4.67820 29.72 1487.64 1022.662 5.25 5.24 11.135 3.38419 4.68265 29.75 1487.61 1022.689 5.55 5.53 11.119 3.38614 4.68743 29.78 1487.60 1022.718 5.85 5.83 11.106 3.38885 4.69293 29.82 1487.60 1022.750 6.15 6.13 11.077 3.38986 4.69813 29.85 1487.54 1022.783 6.45 6.43 11.036 3.39235 4.70685 29.91 1487.47 1022.835 6.75 6.73 10.991 3.39829 4.72104 30.00 1487.43 1022.918 7.05 7.03 10.961 3.40571 4.73523 30.10 1487.44 1023.000 7.35 7.33 10.933 3.40818 4.74240 30.14 1487.41 1023.043 7.65 7.63 10.880 3.41285 4.75588 30.23 1487.33 1023.122 7.95 7.93 10.808 3.41609 4.76995 30.32 1487.19 1023.207 8.25 8.23 10.741 3.42019 4.78469 30.42 1487.07 1023.295 8.55 8.52 10.691 3.42499 4.79813 30.51 1487.00 1023.374 8.85 8.82 10.663 3.42631 4.80374 30.55 1486.95 1023.408 9.15 9.12 10.629 3.42885 4.81182 30.60 1486.90 1023.456 9.45 9.42 10.622 3.42960 4.81382 30.61 1486.90 1023.469 9.75 9.72 10.618 3.43020 4.81528 30.62 1486.90 1023.479 10.05 10.02 10.603 3.43017 4.81729 30.63 1486.86 1023.492 10.35 10.32 10.572 3.43069 4.82213 30.67 1486.79 1023.522 10.65 10.62 10.520 3.43037 4.82885 30.71 1486.66 1023.565 10.95 10.91 10.474 3.43057 4.83536 30.75 1486.55 1023.605 11.25 11.21 10.386 3.43918 4.85953 30.91 1486.43 1023.746 11.55 11.51 10.354 3.44376 4.87034 30.98 1486.41 1023.809 11.85 11.81 10.313 3.44612 4.87942 31.04 1486.34 1023.863 12.15 12.11 10.270 3.44970 4.89037 31.11 1486.28 1023.927 12.45 12.41 10.245 3.44906 4.89301 31.13 1486.21 1023.945 12.75 12.71 10.233 3.45049 4.89663 31.15 1486.20 1023.967 13.05 13.01 10.234 3.45124 4.89757 31.16 1486.22 1023.973 13.35 13.30 10.232 3.45120 4.89780 31.16 1486.22 1023.976 13.65 13.60 10.221 3.44996 4.89763 31.15 1486.18 1023.977 13.95 13.90 10.202 3.45016 4.90046 31.17 1486.14 1023.995 14.25 14.20 10.184 3.45090 4.90414 31.20 1486.10 1024.018 14.55 14.50 10.169 3.45146 4.90694 31.21 1486.08 1024.036 14.85 14.80 10.154 3.45312 4.91136 31.24 1486.06 1024.062 15.15 15.10 10.148 3.45389 4.91331 31.26 1486.06 1024.075 15.45 15.39 10.151 3.45492 4.91442 31.26 1486.09 1024.082 15.75 15.69 10.151 3.45464 4.91396 31.26 1486.09 1024.081 16.05 15.99 10.149 3.45541 4.91541 31.27 1486.10 1024.090 16.35 16.29 10.144 3.45713 4.91848 31.29 1486.11 1024.109 16.65 16.59 10.141 3.45802 4.92016 31.30 1486.12 1024.119 16.95 16.89 10.137 3.45861 4.92161 31.31 1486.12 1024.129 17.25 17.19 10.136 3.45938 4.92279 31.32 1486.13 1024.137 17.55 17.48 10.135 3.45988 4.92368 31.33 1486.14 1024.143 17.85 17.78 10.130 3.46052 4.92524 31.34 1486.14 1024.153 18.15 18.08 10.120 3.46133 4.92787 31.35 1486.13 1024.169 18.45 18.38 10.116 3.46158 4.92879 31.36 1486.13 1024.176 18.75 18.68 10.112 3.46257 4.93075 31.37 1486.13 1024.188 19.05 18.98 10.108 3.46225 4.93087 31.37 1486.12 1024.191 19.35 19.28 10.103 3.46321 4.93286 31.39 1486.13 1024.203 19.65 19.58 10.100 3.46409 4.93457 31.40 1486.14 1024.214 19.95 19.87 10.092 3.46362 4.93499 31.40 1486.11 1024.218 20.25 20.17 10.088 3.46447 4.93685 31.41 1486.12 1024.230 20.55 20.47 10.084 3.46518 4.93834 31.42 1486.12 1024.240 20.85 20.77 10.083 3.46533 4.93882 31.43 1486.12 1024.244 21.15 21.07 10.083 3.46652 4.94050 31.44 1486.14 1024.254 21.45 21.37 10.083 3.46676 4.94082 31.44 1486.15 1024.257 21.75 21.67 10.081 3.46733 4.94191 31.45 1486.16 1024.265 22.05 21.96 10.081 3.46734 4.94189 31.45 1486.16 1024.266 22.35 22.26 10.081 3.46796 4.94284 31.45 1486.18 1024.272 22.65 22.56 10.078 3.46855 4.94404 31.46 1486.18 1024.280 22.95 22.86 10.077 3.46852 4.94419 31.46 1486.18 1024.282 23.25 23.16 10.073 3.47055 4.94755 31.48 1486.20 1024.302 23.55 23.46 10.073 3.47143 4.94886 31.49 1486.22 1024.311 23.85 23.76 10.072 3.47136 4.94884 31.49 1486.22 1024.312 24.15 24.05 10.071 3.47275 4.95100 31.51 1486.24 1024.325 24.45 24.35 10.064 3.47343 4.95305 31.52 1486.23 1024.338 24.75 24.65 10.059 3.47414 4.95468 31.53 1486.23 1024.349 25.05 24.95 10.059 3.47507 4.95597 31.54 1486.25 1024.357 25.35 25.25 10.062 3.47536 4.95608 31.54 1486.26 1024.359 25.65 25.55 10.058 3.47540 4.95663 31.55 1486.26 1024.364 25.95 25.85 10.059 3.47557 4.95678 31.55 1486.27 1024.366 26.25 26.14 10.054 3.47603 4.95810 31.56 1486.27 1024.374 26.55 26.44 10.052 3.47679 4.95954 31.57 1486.28 1024.384 26.85 26.74 10.048 3.47887 4.96307 31.59 1486.30 1024.405 27.15 27.04 10.044 3.47993 4.96512 31.60 1486.30 1024.418 27.45 27.34 10.040 3.47993 4.96562 31.61 1486.30 1024.422 27.75 27.64 10.040 3.48102 4.96725 31.62 1486.32 1024.432 28.05 27.93 10.036 3.48121 4.96808 31.62 1486.31 1024.438 28.35 28.23 10.032 3.48280 4.97086 31.64 1486.33 1024.455 28.65 28.53 10.026 3.48378 4.97309 31.66 1486.33 1024.469 28.95 28.83 10.023 3.48497 4.97522 31.67 1486.34 1024.482 29.25 29.13 10.019 3.48528 4.97625 31.68 1486.34 1024.489 29.55 29.43 10.014 3.48536 4.97705 31.68 1486.33 1024.495 29.85 29.73 10.005 3.48518 4.97811 31.69 1486.31 1024.503 30.15 30.02 9.998 3.48482 4.97860 31.69 1486.29 1024.507 30.45 30.32 9.995 3.48535 4.97985 31.70 1486.30 1024.516 30.75 30.62 9.989 3.48586 4.98130 31.71 1486.29 1024.526 31.05 30.92 9.986 3.48644 4.98256 31.72 1486.30 1024.534 31.35 31.22 9.986 3.48775 4.98447 31.73 1486.32 1024.546 31.65 31.52 9.982 3.48865 4.98633 31.74 1486.32 1024.557 31.95 31.82 9.977 3.49150 4.99107 31.78 1486.35 1024.585 32.25 32.11 9.969 3.49543 4.99787 31.82 1486.38 1024.624 32.55 32.41 9.962 3.49947 5.00469 31.87 1486.42 1024.664 32.85 32.71 9.966 3.50111 5.00643 31.88 1486.46 1024.674 33.15 33.01 9.968 3.50308 5.00897 31.90 1486.49 1024.689 33.45 33.31 9.965 3.50414 5.01093 31.91 1486.50 1024.702 33.75 33.61 9.961 3.50591 5.01405 31.94 1486.52 1024.720 34.05 33.90 9.958 3.50735 5.01646 31.95 1486.53 1024.735 34.35 34.20 9.962 3.50702 5.01552 31.95 1486.54 1024.731 34.65 34.50 9.957 3.50670 5.01575 31.95 1486.53 1024.734 34.95 34.80 9.951 3.50759 5.01784 31.96 1486.53 1024.747 35.25 35.10 9.951 3.50709 5.01723 31.96 1486.53 1024.745 35.55 35.40 9.951 3.50797 5.01845 31.96 1486.54 1024.753 35.85 35.70 9.954 3.50763 5.01749 31.96 1486.55 1024.749 36.15 35.99 9.946 3.50900 5.02054 31.98 1486.56 1024.767 36.44 36.28 9.947 3.50990 5.02177 31.99 1486.57 1024.775