*2026/01/16 09:57:47.59 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/01 23:52:37.000 END TIME : UTC 2024/02/01 23:52:53.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 81 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.26 2 Depth metres 0.15 24.22 3 Temperature 'deg C (ITS90)' 9.058 9.676 4 Conductivity S/m 1.09748 3.2976 5 Conductance:Specific S/m 1.61117 4.7612 6 Salinity PSS-78 9.22 30.12 7 Speed:Sound m/s 1454.91 1482.94 8 Density kg/m^3 1006.993 1023.312 $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 : 37 LATITUDE : 50 0.11840 N ! (deg min) LONGITUDE : 127 10.26270 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240201_235237 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 81 81 MERGEHDR 1.3 2026/01/16 09:53:46 81 81 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:13 81 81 CALIB 12.1 2026/01/16 09:56:45 81 81 CLEAN 5.3 2026/01/16 09:57:47 81 81 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 9.058 1.09748 1.61117 9.22 1454.91 1006.993 0.45 0.46 9.166 1.50784 2.20666 12.96 1459.91 1009.898 0.75 0.76 9.250 1.61689 2.36044 13.95 1461.45 1010.659 1.05 1.06 9.374 1.84980 2.69067 16.09 1464.54 1012.314 1.35 1.36 9.401 1.90959 2.77551 16.64 1465.32 1012.744 1.65 1.66 9.407 1.93284 2.80875 16.86 1465.62 1012.914 1.95 1.97 9.410 1.95158 2.83575 17.04 1465.85 1013.053 2.25 2.27 9.423 1.99187 2.89320 17.42 1466.36 1013.346 2.55 2.57 9.434 2.02831 2.94524 17.76 1466.82 1013.613 2.85 2.87 9.441 2.06058 2.99151 18.06 1467.22 1013.851 3.15 3.17 9.459 2.14930 3.11863 18.91 1468.32 1014.505 3.45 3.47 9.478 2.22175 3.22200 19.59 1469.23 1015.039 3.75 3.78 9.487 2.25278 3.26612 19.89 1469.63 1015.268 4.05 4.08 9.495 2.32769 3.37395 20.61 1470.54 1015.829 4.35 4.38 9.517 2.46085 3.56468 21.89 1472.19 1016.826 4.65 4.68 9.531 2.65372 3.84255 23.77 1474.53 1018.290 4.95 4.98 9.541 2.76192 3.99808 24.83 1475.86 1019.117 5.25 5.28 9.545 2.80785 4.06402 25.28 1476.43 1019.469 5.55 5.58 9.546 2.83475 4.10283 25.55 1476.76 1019.678 5.85 5.88 9.565 2.98257 4.31445 27.01 1478.61 1020.813 6.15 6.18 9.593 3.14965 4.55240 28.66 1480.73 1022.100 6.45 6.48 9.618 3.21784 4.64769 29.33 1481.64 1022.618 6.75 6.77 9.639 3.25388 4.69690 29.68 1482.15 1022.886 7.05 7.07 9.662 3.25780 4.69932 29.70 1482.26 1022.899 7.35 7.37 9.671 3.26004 4.70146 29.71 1482.32 1022.911 7.65 7.67 9.671 3.26165 4.70369 29.73 1482.34 1022.925 7.95 7.97 9.673 3.26230 4.70445 29.73 1482.36 1022.930 8.25 8.27 9.674 3.26284 4.70507 29.74 1482.37 1022.935 8.55 8.57 9.676 3.26356 4.70579 29.74 1482.39 1022.940 8.85 8.87 9.676 3.26481 4.70758 29.75 1482.41 1022.951 9.15 9.17 9.676 3.26569 4.70883 29.76 1482.43 1022.959 9.45 9.47 9.676 3.26708 4.71092 29.78 1482.45 1022.972 9.75 9.76 9.673 3.26823 4.71291 29.79 1482.46 1022.984 10.05 10.06 9.670 3.26856 4.71385 29.80 1482.46 1022.991 10.35 10.36 9.668 3.26863 4.71422 29.80 1482.46 1022.994 10.65 10.66 9.667 3.26898 4.71483 29.80 1482.47 1022.999 10.95 10.96 9.660 3.27493 4.72439 29.87 1482.53 1023.053 11.25 11.26 9.654 3.28002 4.73257 29.93 1482.58 1023.099 11.55 11.56 9.650 3.28146 4.73509 29.94 1482.59 1023.114 11.85 11.86 9.650 3.28232 4.73634 29.95 1482.61 1023.122 12.15 12.16 9.650 3.28247 4.73661 29.95 1482.61 1023.125 12.45 12.45 9.649 3.28257 4.73684 29.95 1482.62 1023.128 12.75 12.75 9.649 3.28278 4.73725 29.96 1482.62 1023.131 13.05 13.05 9.648 3.28302 4.73765 29.96 1482.63 1023.135 13.35 13.35 9.648 3.28331 4.73804 29.96 1482.64 1023.138 13.65 13.65 9.647 3.28277 4.73749 29.96 1482.63 1023.136 13.95 13.95 9.646 3.28319 4.73818 29.96 1482.64 1023.141 14.25 14.25 9.646 3.28323 4.73831 29.96 1482.64 1023.143 14.55 14.55 9.645 3.28315 4.73827 29.96 1482.65 1023.145 14.85 14.85 9.645 3.28333 4.73859 29.96 1482.65 1023.148 15.15 15.14 9.644 3.28347 4.73884 29.97 1482.66 1023.150 15.45 15.44 9.644 3.28320 4.73845 29.96 1482.66 1023.149 15.75 15.74 9.644 3.28371 4.73922 29.97 1482.67 1023.155 16.05 16.04 9.643 3.28343 4.73889 29.97 1482.67 1023.154 16.35 16.34 9.644 3.28337 4.73867 29.96 1482.68 1023.154 16.65 16.64 9.644 3.28326 4.73863 29.96 1482.68 1023.156 16.95 16.94 9.642 3.28352 4.73919 29.97 1482.68 1023.160 17.25 17.24 9.640 3.28372 4.73979 29.97 1482.68 1023.165 17.55 17.54 9.637 3.28488 4.74186 29.99 1482.69 1023.177 17.85 17.83 9.636 3.28580 4.74334 30.00 1482.71 1023.187 18.15 18.13 9.634 3.28683 4.74507 30.01 1482.72 1023.198 18.45 18.43 9.630 3.28771 4.74692 30.02 1482.72 1023.209 18.75 18.73 9.627 3.28877 4.74880 30.03 1482.74 1023.221 19.05 19.03 9.628 3.28964 4.75000 30.04 1482.75 1023.229 19.35 19.33 9.631 3.29029 4.75053 30.04 1482.77 1023.233 19.65 19.63 9.632 3.29047 4.75066 30.05 1482.78 1023.235 19.95 19.93 9.634 3.29055 4.75051 30.04 1482.79 1023.235 20.25 20.22 9.635 3.29161 4.75185 30.05 1482.81 1023.244 20.55 20.52 9.636 3.29207 4.75234 30.06 1482.83 1023.247 20.85 20.82 9.636 3.29206 4.75240 30.06 1482.83 1023.249 21.15 21.12 9.634 3.29185 4.75231 30.06 1482.83 1023.250 21.45 21.42 9.632 3.29223 4.75316 30.06 1482.83 1023.256 21.75 21.72 9.631 3.29214 4.75319 30.06 1482.83 1023.258 22.05 22.02 9.629 3.29173 4.75283 30.06 1482.83 1023.257 22.35 22.32 9.627 3.29166 4.75301 30.06 1482.83 1023.259 22.65 22.62 9.625 3.29219 4.75406 30.07 1482.83 1023.266 22.95 22.91 9.625 3.29224 4.75415 30.07 1482.84 1023.268 23.25 23.21 9.623 3.29280 4.75525 30.08 1482.84 1023.276 23.55 23.51 9.618 3.29322 4.75647 30.08 1482.84 1023.284 23.85 23.81 9.621 3.29585 4.75990 30.11 1482.89 1023.304 24.26 24.22 9.630 3.29760 4.76120 30.12 1482.94 1023.312