*2026/01/16 10:37:55.10 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 23:42:23.000 END TIME : UTC 2025/05/28 23:42:46.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 116 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.77 2 Depth metres 0.15 34.62 3 Temperature 'deg C (ITS90)' 10.192 13.146 4 Conductivity S/m 3.31102 3.52325 5 Conductance:Specific S/m 4.33992 4.93735 6 Salinity PSS-78 27.52 31.42 7 Speed:Sound m/s 1486.74 1491.84 8 Density kg/m^3 1020.579 1024.286 $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 : 170 LATITUDE : 49 52.19450 N ! (deg min) LONGITUDE : 126 55.64020 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_234223 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 116 116 MERGEHDR 1.3 2026/01/16 10:35:45 116 116 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:43 116 116 CALIB 12.1 2026/01/16 10:37:18 116 116 CLEAN 5.3 2026/01/16 10:37:55 116 116 $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 13.146 3.31102 4.33992 27.52 1491.84 1020.579 0.45 0.45 12.994 3.31581 4.36364 27.67 1491.51 1020.728 0.75 0.75 12.731 3.34494 4.43264 28.14 1491.17 1021.137 1.05 1.05 12.586 3.37161 4.48519 28.49 1491.10 1021.441 1.35 1.35 12.582 3.37757 4.49357 28.55 1491.16 1021.489 1.65 1.65 12.566 3.38470 4.50503 28.63 1491.21 1021.554 1.95 1.95 12.485 3.39470 4.52808 28.79 1491.12 1021.691 2.25 2.25 12.372 3.39915 4.54774 28.92 1490.89 1021.812 2.55 2.54 12.280 3.41240 4.57669 29.11 1490.81 1021.982 2.85 2.84 12.209 3.42086 4.59680 29.25 1490.73 1022.101 3.15 3.14 12.108 3.43593 4.62963 29.47 1490.65 1022.293 3.45 3.44 12.015 3.46558 4.68129 29.83 1490.76 1022.587 3.75 3.74 11.956 3.47803 4.70566 29.99 1490.75 1022.728 4.05 4.04 11.876 3.48206 4.72132 30.09 1490.60 1022.823 4.35 4.34 11.814 3.48673 4.73563 30.19 1490.51 1022.910 4.65 4.64 11.765 3.48852 4.74441 30.25 1490.41 1022.964 4.95 4.94 11.722 3.49307 4.75605 30.32 1490.36 1023.034 5.25 5.24 11.689 3.49771 4.76676 30.40 1490.33 1023.097 5.55 5.53 11.656 3.50146 4.77616 30.46 1490.30 1023.153 5.85 5.83 11.633 3.50296 4.78111 30.49 1490.27 1023.184 6.15 6.13 11.610 3.50513 4.78713 30.53 1490.24 1023.221 6.45 6.43 11.591 3.50709 4.79234 30.57 1490.22 1023.252 6.75 6.73 11.573 3.50880 4.79704 30.60 1490.20 1023.281 7.05 7.03 11.559 3.50931 4.79957 30.62 1490.17 1023.298 7.35 7.33 11.548 3.50985 4.80164 30.63 1490.16 1023.311 7.65 7.63 11.548 3.51099 4.80322 30.64 1490.17 1023.321 7.95 7.93 11.544 3.51043 4.80305 30.64 1490.16 1023.322 8.25 8.22 11.529 3.51033 4.80484 30.65 1490.13 1023.335 8.55 8.52 11.522 3.51034 4.80576 30.65 1490.12 1023.342 8.85 8.82 11.518 3.51078 4.80688 30.66 1490.12 1023.350 9.15 9.12 11.511 3.51120 4.80839 30.67 1490.11 1023.360 9.45 9.42 11.499 3.51226 4.81145 30.69 1490.09 1023.379 9.75 9.72 11.485 3.51428 4.81611 30.72 1490.09 1023.407 10.05 10.02 11.467 3.51526 4.81977 30.75 1490.06 1023.430 10.35 10.32 11.449 3.51566 4.82268 30.77 1490.02 1023.449 10.65 10.61 11.439 3.51606 4.82462 30.78 1490.01 1023.462 10.95 10.91 11.431 3.51621 4.82580 30.79 1489.99 1023.471 11.25 11.21 11.421 3.51664 4.82783 30.80 1489.98 1023.484 11.55 11.51 11.407 3.51749 4.83082 30.82 1489.96 1023.503 11.85 11.81 11.398 3.51823 4.83295 30.83 1489.95 1023.517 12.15 12.11 11.395 3.51914 4.83460 30.84 1489.96 1023.528 12.45 12.41 11.394 3.51886 4.83445 30.84 1489.95 1023.528 12.75 12.71 11.393 3.51942 4.83528 30.85 1489.96 1023.534 13.05 13.01 11.386 3.52031 4.83746 30.86 1489.96 1023.548 13.35 13.30 11.364 3.52223 4.84298 30.90 1489.93 1023.582 13.65 13.60 11.318 3.52325 4.85058 30.95 1489.83 1023.629 13.95 13.90 11.256 3.52193 4.85702 30.99 1489.67 1023.671 14.25 14.20 11.176 3.52210 4.86803 31.06 1489.47 1023.741 14.55 14.50 11.113 3.52137 4.87551 31.10 1489.31 1023.789 14.85 14.80 11.075 3.52053 4.87939 31.13 1489.21 1023.815 15.15 15.10 11.041 3.51956 4.88269 31.14 1489.12 1023.837 15.45 15.39 11.001 3.51969 4.88832 31.18 1489.03 1023.873 15.75 15.69 10.965 3.51794 4.89077 31.19 1488.92 1023.891 16.05 15.99 10.947 3.51724 4.89229 31.20 1488.87 1023.902 16.35 16.29 10.934 3.51802 4.89511 31.22 1488.85 1023.920 16.65 16.59 10.928 3.51697 4.89453 31.22 1488.83 1023.918 16.95 16.89 10.924 3.51711 4.89524 31.22 1488.82 1023.924 17.25 17.19 10.920 3.51736 4.89605 31.22 1488.82 1023.930 17.55 17.49 10.914 3.51676 4.89609 31.22 1488.81 1023.932 17.85 17.78 10.910 3.51667 4.89649 31.23 1488.80 1023.936 18.15 18.08 10.908 3.51697 4.89720 31.23 1488.80 1023.941 18.45 18.38 10.906 3.51747 4.89822 31.24 1488.81 1023.948 18.75 18.68 10.903 3.51644 4.89716 31.23 1488.79 1023.944 19.05 18.98 10.900 3.51625 4.89732 31.23 1488.79 1023.946 19.35 19.28 10.893 3.51593 4.89775 31.23 1488.77 1023.950 19.65 19.58 10.875 3.51575 4.90003 31.25 1488.73 1023.966 19.95 19.87 10.857 3.51458 4.90077 31.25 1488.68 1023.972 20.25 20.17 10.851 3.51393 4.90079 31.25 1488.66 1023.974 20.55 20.47 10.836 3.51246 4.90078 31.25 1488.60 1023.977 20.85 20.77 10.824 3.51169 4.90134 31.25 1488.57 1023.982 21.15 21.07 10.812 3.51287 4.90455 31.27 1488.56 1024.002 21.45 21.37 10.801 3.51224 4.90529 31.27 1488.53 1024.008 21.75 21.67 10.795 3.51240 4.90635 31.28 1488.52 1024.016 22.05 21.96 10.791 3.51273 4.90726 31.29 1488.52 1024.022 22.35 22.26 10.785 3.51252 4.90781 31.29 1488.51 1024.027 22.65 22.56 10.774 3.51242 4.90913 31.30 1488.48 1024.037 22.95 22.86 10.766 3.51239 4.91027 31.31 1488.47 1024.045 23.25 23.16 10.763 3.51243 4.91065 31.31 1488.46 1024.048 23.55 23.46 10.757 3.51209 4.91109 31.31 1488.45 1024.053 23.85 23.76 10.749 3.51245 4.91270 31.32 1488.44 1024.063 24.15 24.06 10.745 3.51300 4.91403 31.33 1488.44 1024.072 24.45 24.35 10.741 3.51236 4.91365 31.33 1488.43 1024.072 24.75 24.65 10.733 3.51258 4.91509 31.33 1488.41 1024.082 25.05 24.95 10.716 3.51183 4.91636 31.34 1488.37 1024.091 25.35 25.25 10.702 3.51084 4.91691 31.34 1488.32 1024.097 25.65 25.55 10.686 3.51074 4.91890 31.36 1488.29 1024.110 25.95 25.85 10.677 3.51035 4.91964 31.36 1488.26 1024.116 26.25 26.15 10.671 3.51016 4.92015 31.36 1488.25 1024.121 26.55 26.44 10.670 3.51033 4.92056 31.37 1488.26 1024.124 26.85 26.74 10.666 3.51082 4.92177 31.37 1488.26 1024.133 27.15 27.04 10.662 3.51053 4.92196 31.37 1488.25 1024.135 27.45 27.34 10.658 3.51045 4.92243 31.38 1488.24 1024.139 27.75 27.64 10.651 3.51062 4.92355 31.38 1488.23 1024.147 28.05 27.94 10.643 3.51008 4.92396 31.39 1488.21 1024.151 28.35 28.24 10.635 3.51015 4.92517 31.39 1488.19 1024.160 28.65 28.53 10.628 3.50957 4.92536 31.39 1488.17 1024.163 28.95 28.83 10.619 3.50932 4.92619 31.40 1488.15 1024.169 29.25 29.13 10.610 3.50895 4.92689 31.40 1488.13 1024.175 29.55 29.43 10.603 3.50845 4.92716 31.40 1488.11 1024.179 29.85 29.73 10.590 3.50789 4.92819 31.41 1488.08 1024.187 30.15 30.03 10.574 3.50674 4.92880 31.41 1488.03 1024.192 30.45 30.33 10.557 3.50522 4.92908 31.41 1487.97 1024.197 30.75 30.62 10.543 3.50312 4.92801 31.40 1487.91 1024.193 31.05 30.92 10.534 3.50161 4.92707 31.39 1487.88 1024.190 31.35 31.22 10.527 3.50121 4.92751 31.40 1487.86 1024.194 31.65 31.52 10.521 3.49986 4.92652 31.39 1487.83 1024.190 31.95 31.82 10.511 3.49804 4.92532 31.38 1487.79 1024.186 32.25 32.12 10.485 3.49440 4.92378 31.36 1487.69 1024.180 32.55 32.42 10.455 3.49212 4.92474 31.37 1487.59 1024.189 32.85 32.71 10.421 3.49137 4.92840 31.39 1487.50 1024.213 33.15 33.01 10.391 3.48828 4.92823 31.38 1487.39 1024.216 33.45 33.31 10.360 3.48535 4.92836 31.38 1487.28 1024.220 33.75 33.61 10.320 3.48162 4.92868 31.38 1487.14 1024.226 34.05 33.91 10.276 3.47837 4.93022 31.38 1486.99 1024.239 34.35 34.21 10.202 3.47613 4.93735 31.42 1486.78 1024.284 34.77 34.62 10.192 3.47496 4.93718 31.42 1486.74 1024.286