*2026/01/16 10:37:54.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 20:55:35.000 END TIME : UTC 2025/05/28 20:55:55.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 105 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.44 2 Depth metres 0.15 31.32 3 Temperature 'deg C (ITS90)' 11.005 13.154 4 Conductivity S/m 3.12929 3.53161 5 Conductance:Specific S/m 4.10091 4.88896 6 Salinity PSS-78 25.85 31.18 7 Speed:Sound m/s 1489.26 1490.96 8 Density kg/m^3 1019.291 1023.942 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 166 LATITUDE : 49 50.63030 N ! (deg min) LONGITUDE : 126 54.58060 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_205535 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 105 105 MERGEHDR 1.3 2026/01/16 10:35:45 105 105 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:43 105 105 CALIB 12.1 2026/01/16 10:37:18 105 105 CLEAN 5.3 2026/01/16 10:37:54 105 105 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 10:36:43 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 10:37:42 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 13.027 3.13683 4.12445 26.00 1489.65 1019.431 0.45 0.45 13.095 3.13344 4.11269 25.93 1489.80 1019.361 0.75 0.75 13.154 3.12929 4.10091 25.85 1489.91 1019.291 1.05 1.05 13.144 3.16150 4.14415 26.15 1490.24 1019.526 1.35 1.35 13.103 3.20879 4.21065 26.61 1490.65 1019.891 1.65 1.65 13.072 3.24448 4.26095 26.96 1490.96 1020.168 1.95 1.95 12.983 3.26282 4.29511 27.19 1490.93 1020.365 2.25 2.25 12.767 3.29257 4.35904 27.62 1490.71 1020.739 2.55 2.55 12.682 3.32222 4.40819 27.96 1490.83 1021.018 2.85 2.85 12.546 3.32374 4.42621 28.08 1490.50 1021.133 3.15 3.15 12.448 3.32631 4.44120 28.17 1490.28 1021.227 3.45 3.45 12.354 3.34129 4.47246 28.38 1490.21 1021.409 3.75 3.75 12.242 3.38020 4.53816 28.84 1490.37 1021.781 4.05 4.05 12.140 3.40729 4.58712 29.17 1490.42 1022.061 4.35 4.34 12.063 3.44928 4.65332 29.63 1490.71 1022.432 4.65 4.64 11.962 3.46448 4.68652 29.86 1490.63 1022.626 4.95 4.94 11.865 3.48152 4.72193 30.10 1490.59 1022.832 5.25 5.24 11.812 3.48763 4.73712 30.20 1490.53 1022.922 5.55 5.54 11.758 3.49625 4.75570 30.33 1490.50 1023.031 5.85 5.84 11.710 3.50072 4.76807 30.41 1490.43 1023.105 6.15 6.14 11.650 3.50708 4.78460 30.52 1490.36 1023.203 6.45 6.44 11.612 3.51575 4.80137 30.63 1490.37 1023.300 6.75 6.74 11.592 3.51956 4.80912 30.69 1490.37 1023.346 7.05 7.03 11.572 3.52262 4.81602 30.73 1490.36 1023.387 7.35 7.33 11.549 3.52350 4.82029 30.76 1490.32 1023.414 7.65 7.63 11.530 3.52365 4.82301 30.78 1490.27 1023.432 7.95 7.93 11.517 3.52416 4.82536 30.79 1490.25 1023.447 8.25 8.23 11.509 3.52449 4.82687 30.80 1490.24 1023.458 8.55 8.53 11.504 3.52427 4.82721 30.80 1490.23 1023.461 8.85 8.83 11.498 3.52437 4.82815 30.81 1490.22 1023.468 9.15 9.13 11.496 3.52508 4.82947 30.82 1490.23 1023.477 9.45 9.43 11.490 3.52486 4.82984 30.82 1490.22 1023.481 9.75 9.72 11.482 3.52503 4.83114 30.83 1490.21 1023.490 10.05 10.02 11.473 3.52585 4.83351 30.85 1490.20 1023.505 10.35 10.32 11.448 3.52919 4.84139 30.90 1490.18 1023.552 10.65 10.62 11.413 3.52972 4.84684 30.93 1490.10 1023.587 10.95 10.92 11.395 3.52863 4.84770 30.94 1490.05 1023.595 11.25 11.22 11.380 3.52815 4.84908 30.95 1490.01 1023.605 11.55 11.52 11.371 3.52858 4.85080 30.96 1490.00 1023.616 11.85 11.82 11.361 3.53042 4.85470 30.98 1490.00 1023.640 12.15 12.11 11.354 3.53101 4.85640 30.99 1489.99 1023.651 12.45 12.41 11.350 3.53110 4.85708 31.00 1489.99 1023.657 12.75 12.71 11.342 3.53119 4.85823 31.01 1489.98 1023.665 13.05 13.01 11.336 3.53161 4.85971 31.02 1489.97 1023.675 13.35 13.31 11.320 3.53159 4.86181 31.03 1489.93 1023.689 13.65 13.61 11.309 3.53093 4.86231 31.03 1489.90 1023.694 13.95 13.91 11.303 3.53009 4.86204 31.03 1489.88 1023.695 14.25 14.20 11.288 3.52893 4.86237 31.03 1489.84 1023.699 14.55 14.50 11.277 3.52892 4.86390 31.04 1489.81 1023.710 14.85 14.80 11.266 3.52939 4.86597 31.05 1489.80 1023.724 15.15 15.10 11.256 3.52860 4.86620 31.05 1489.77 1023.727 15.45 15.40 11.247 3.52845 4.86720 31.06 1489.75 1023.735 15.75 15.70 11.239 3.52821 4.86800 31.06 1489.73 1023.741 16.05 16.00 11.230 3.52815 4.86910 31.07 1489.71 1023.749 16.35 16.30 11.225 3.52804 4.86963 31.07 1489.70 1023.754 16.65 16.59 11.218 3.52742 4.86973 31.07 1489.68 1023.756 16.95 16.89 11.211 3.52759 4.87081 31.08 1489.67 1023.764 17.25 17.19 11.207 3.52817 4.87224 31.09 1489.67 1023.774 17.55 17.49 11.202 3.52798 4.87269 31.09 1489.66 1023.778 17.85 17.79 11.197 3.52824 4.87370 31.10 1489.66 1023.785 18.15 18.09 11.193 3.52805 4.87394 31.10 1489.65 1023.788 18.45 18.39 11.190 3.52846 4.87497 31.11 1489.65 1023.795 18.75 18.69 11.188 3.52788 4.87442 31.10 1489.64 1023.794 19.05 18.98 11.186 3.52859 4.87568 31.11 1489.65 1023.802 19.35 19.28 11.184 3.52843 4.87561 31.11 1489.65 1023.803 19.65 19.58 11.184 3.52799 4.87510 31.10 1489.65 1023.802 19.95 19.88 11.183 3.52777 4.87489 31.10 1489.65 1023.802 20.25 20.18 11.180 3.52844 4.87622 31.11 1489.66 1023.811 20.55 20.48 11.176 3.52776 4.87577 31.11 1489.64 1023.810 20.85 20.78 11.176 3.52846 4.87678 31.12 1489.66 1023.816 21.15 21.07 11.176 3.52789 4.87608 31.11 1489.65 1023.814 21.45 21.37 11.174 3.52814 4.87659 31.11 1489.66 1023.818 21.75 21.67 11.172 3.52755 4.87614 31.11 1489.65 1023.817 22.05 21.97 11.169 3.52772 4.87677 31.11 1489.65 1023.822 22.35 22.27 11.167 3.52812 4.87752 31.12 1489.65 1023.828 22.65 22.57 11.164 3.52770 4.87729 31.12 1489.65 1023.828 22.95 22.87 11.163 3.52794 4.87778 31.12 1489.65 1023.832 23.25 23.17 11.162 3.52784 4.87788 31.12 1489.65 1023.834 23.55 23.46 11.158 3.52782 4.87839 31.12 1489.64 1023.838 23.85 23.76 11.154 3.52740 4.87824 31.12 1489.64 1023.839 24.15 24.06 11.152 3.52693 4.87786 31.12 1489.63 1023.839 24.45 24.36 11.150 3.52651 4.87756 31.12 1489.63 1023.838 24.75 24.66 11.146 3.52697 4.87873 31.12 1489.63 1023.846 25.05 24.96 11.143 3.52663 4.87871 31.12 1489.62 1023.848 25.35 25.26 11.140 3.52666 4.87920 31.13 1489.62 1023.852 25.65 25.56 11.136 3.52682 4.87990 31.13 1489.61 1023.857 25.95 25.85 11.134 3.52609 4.87919 31.13 1489.60 1023.855 26.25 26.15 11.132 3.52610 4.87952 31.13 1489.60 1023.858 26.55 26.45 11.131 3.52672 4.88044 31.13 1489.61 1023.865 26.85 26.75 11.130 3.52638 4.88008 31.13 1489.61 1023.864 27.15 27.05 11.130 3.52609 4.87978 31.13 1489.61 1023.864 27.45 27.35 11.127 3.52705 4.88150 31.14 1489.62 1023.875 27.75 27.65 11.123 3.52656 4.88138 31.14 1489.61 1023.876 28.05 27.94 11.121 3.52595 4.88069 31.13 1489.60 1023.873 28.35 28.24 11.131 3.52655 4.88023 31.13 1489.64 1023.871 28.65 28.54 11.138 3.52699 4.87987 31.13 1489.67 1023.870 28.95 28.84 11.140 3.52686 4.87947 31.13 1489.68 1023.869 29.25 29.14 11.132 3.52486 4.87771 31.11 1489.64 1023.861 29.55 29.44 11.110 3.52520 4.88115 31.14 1489.59 1023.883 29.85 29.74 11.098 3.52616 4.88415 31.16 1489.58 1023.902 30.15 30.04 11.093 3.52559 4.88406 31.15 1489.56 1023.903 30.45 30.33 11.092 3.52530 4.88382 31.15 1489.56 1023.903 30.75 30.63 11.080 3.52443 4.88417 31.15 1489.53 1023.907 31.05 30.93 11.005 3.52054 4.88896 31.18 1489.30 1023.942 31.44 31.32 11.005 3.51748 4.88475 31.15 1489.26 1023.920