*2026/01/16 10:37:52.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/10 17:57:23.000 END TIME : UTC 2025/04/10 17:57:46.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.3 2 Depth metres 0.15 35.23 3 Temperature 'deg C (ITS90)' 8.564 10.18 4 Conductivity S/m 0.36093 3.17066 5 Conductance:Specific S/m 0.53767 4.69306 6 Salinity PSS-78 2.84 29.53 7 Speed:Sound m/s 1445.06 1479.59 8 Density kg/m^3 1002.053 1023.03 $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 : 108 LATITUDE : 50 7.82740 N ! (deg min) LONGITUDE : 127 17.20410 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250410_175723 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 118 118 MERGEHDR 1.3 2026/01/16 10:35:42 118 118 HDREDIT2 3.2 2026/01/16 10:36:13 ? ? REMOVECH 8.2 2026/01/16 10:36:40 118 118 CALIB 12.1 2026/01/16 10:37:15 118 118 CLEAN 5.3 2026/01/16 10:37:52 118 118 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:13 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:15 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 8.564 0.36093 0.53767 2.84 1445.06 1002.053 0.45 0.46 8.916 0.38080 0.56139 2.98 1446.66 1002.134 0.75 0.76 9.631 0.53970 0.77921 4.23 1451.08 1003.054 1.05 1.07 10.180 1.50586 2.14023 12.58 1463.38 1009.490 1.35 1.37 10.028 1.82894 2.61068 15.61 1466.46 1011.858 1.65 1.67 9.764 2.14461 3.08453 18.70 1469.21 1014.300 1.95 1.97 9.792 2.51727 3.61757 22.27 1473.65 1017.073 2.25 2.27 9.917 2.84583 4.07509 25.40 1477.91 1019.490 2.55 2.57 9.911 2.96121 4.24105 26.54 1479.27 1020.381 2.85 2.87 9.847 2.98793 4.28724 26.85 1479.42 1020.636 3.15 3.17 9.797 3.00775 4.32186 27.09 1479.52 1020.827 3.45 3.47 9.686 3.03037 4.36824 27.40 1479.49 1021.085 3.75 3.77 9.551 3.04102 4.40072 27.60 1479.25 1021.271 4.05 4.07 9.544 3.04744 4.41090 27.67 1479.32 1021.327 4.35 4.37 9.539 3.05632 4.42449 27.77 1479.41 1021.402 4.65 4.67 9.532 3.06201 4.43363 27.83 1479.47 1021.453 4.95 4.97 9.526 3.06422 4.43755 27.86 1479.49 1021.476 5.25 5.27 9.521 3.06649 4.44152 27.88 1479.50 1021.499 5.55 5.57 9.509 3.07140 4.45015 27.94 1479.54 1021.548 5.85 5.87 9.493 3.07312 4.45477 27.97 1479.52 1021.575 6.15 6.17 9.493 3.07370 4.45552 27.98 1479.53 1021.581 6.45 6.46 9.494 3.07639 4.45934 28.00 1479.57 1021.602 6.75 6.76 9.489 3.07925 4.46417 28.04 1479.59 1021.630 7.05 7.06 9.478 3.08108 4.46813 28.06 1479.59 1021.654 7.35 7.36 9.471 3.08122 4.46923 28.07 1479.58 1021.661 7.65 7.66 9.461 3.08205 4.47177 28.09 1479.57 1021.677 7.95 7.96 9.436 3.08478 4.47901 28.13 1479.54 1021.719 8.25 8.26 9.413 3.08387 4.48073 28.14 1479.47 1021.731 8.55 8.56 9.398 3.08269 4.48088 28.14 1479.42 1021.734 8.85 8.86 9.379 3.08276 4.48352 28.16 1479.37 1021.750 9.15 9.16 9.357 3.08399 4.48821 28.19 1479.33 1021.778 9.45 9.46 9.342 3.08382 4.48992 28.20 1479.29 1021.790 9.75 9.76 9.343 3.08546 4.49217 28.21 1479.32 1021.803 10.05 10.06 9.341 3.08871 4.49707 28.25 1479.36 1021.831 10.35 10.36 9.341 3.09337 4.50396 28.29 1479.42 1021.870 10.65 10.65 9.346 3.09565 4.50660 28.31 1479.46 1021.885 10.95 10.95 9.347 3.09934 4.51186 28.35 1479.52 1021.915 11.25 11.25 9.341 3.10051 4.51434 28.37 1479.52 1021.930 11.55 11.55 9.340 3.10044 4.51432 28.36 1479.52 1021.931 11.85 11.85 9.329 3.09907 4.51371 28.36 1479.48 1021.929 12.15 12.15 9.319 3.09518 4.50949 28.33 1479.41 1021.908 12.45 12.45 9.309 3.09524 4.51089 28.34 1479.39 1021.918 12.75 12.75 9.292 3.09694 4.51548 28.37 1479.37 1021.945 13.05 13.05 9.278 3.09711 4.51762 28.38 1479.33 1021.959 13.35 13.35 9.269 3.09775 4.51978 28.39 1479.32 1021.972 13.65 13.65 9.257 3.09736 4.52078 28.40 1479.29 1021.979 13.95 13.95 9.247 3.09621 4.52043 28.39 1479.25 1021.979 14.25 14.25 9.235 3.09549 4.52100 28.40 1479.21 1021.984 14.55 14.54 9.228 3.09723 4.52437 28.42 1479.22 1022.004 14.85 14.84 9.221 3.09751 4.52577 28.43 1479.21 1022.013 15.15 15.14 9.213 3.09672 4.52562 28.43 1479.18 1022.014 15.45 15.44 9.216 3.09838 4.52770 28.44 1479.22 1022.027 15.75 15.74 9.222 3.10285 4.53335 28.48 1479.29 1022.058 16.05 16.04 9.223 3.10567 4.53740 28.51 1479.34 1022.082 16.35 16.34 9.222 3.10610 4.53818 28.51 1479.34 1022.087 16.65 16.64 9.222 3.10582 4.53777 28.51 1479.34 1022.086 16.95 16.94 9.220 3.10672 4.53932 28.52 1479.35 1022.096 17.25 17.24 9.216 3.10802 4.54181 28.54 1479.36 1022.111 17.55 17.54 9.209 3.10690 4.54111 28.53 1479.34 1022.109 17.85 17.84 9.197 3.10590 4.54120 28.53 1479.30 1022.111 18.15 18.13 9.181 3.10543 4.54262 28.54 1479.25 1022.121 18.45 18.43 9.165 3.10380 4.54244 28.54 1479.19 1022.122 18.75 18.73 9.149 3.10088 4.54018 28.52 1479.12 1022.112 19.05 19.03 9.129 3.10047 4.54229 28.53 1479.06 1022.126 19.35 19.33 9.104 3.09982 4.54467 28.54 1478.99 1022.141 19.65 19.63 9.082 3.09946 4.54702 28.56 1478.93 1022.156 19.95 19.93 9.050 3.09906 4.55079 28.58 1478.84 1022.180 20.25 20.23 9.019 3.09714 4.55213 28.58 1478.73 1022.190 20.55 20.53 9.001 3.09499 4.55138 28.58 1478.66 1022.188 20.85 20.83 8.984 3.09344 4.55136 28.57 1478.60 1022.190 21.15 21.13 8.950 3.09107 4.55241 28.58 1478.48 1022.198 21.45 21.43 8.893 3.08971 4.55802 28.61 1478.31 1022.233 21.75 21.72 8.877 3.08881 4.55893 28.61 1478.26 1022.240 22.05 22.02 8.857 3.08865 4.56135 28.63 1478.21 1022.255 22.35 22.32 8.832 3.08737 4.56276 28.63 1478.13 1022.265 22.65 22.62 8.806 3.08542 4.56346 28.63 1478.03 1022.271 22.95 22.92 8.793 3.08368 4.56260 28.63 1477.98 1022.268 23.25 23.22 8.768 3.08447 4.56711 28.65 1477.93 1022.295 23.55 23.52 8.747 3.08472 4.57029 28.67 1477.88 1022.315 23.85 23.82 8.727 3.08513 4.57373 28.69 1477.83 1022.335 24.15 24.12 8.716 3.08486 4.57470 28.70 1477.80 1022.342 24.45 24.42 8.712 3.08653 4.57784 28.72 1477.81 1022.361 24.75 24.72 8.705 3.08923 4.58274 28.75 1477.83 1022.389 25.05 25.01 8.700 3.08976 4.58415 28.76 1477.83 1022.398 25.35 25.31 8.699 3.09044 4.58538 28.77 1477.84 1022.406 25.65 25.61 8.697 3.09091 4.58638 28.78 1477.85 1022.413 25.95 25.91 8.690 3.09272 4.59003 28.80 1477.85 1022.434 26.25 26.21 8.684 3.09390 4.59256 28.82 1477.86 1022.449 26.55 26.51 8.684 3.09608 4.59575 28.84 1477.89 1022.468 26.85 26.81 8.682 3.09940 4.60100 28.88 1477.93 1022.498 27.15 27.11 8.672 3.10224 4.60653 28.91 1477.95 1022.530 27.45 27.41 8.659 3.10564 4.61337 28.96 1477.96 1022.568 27.75 27.71 8.642 3.10637 4.61675 28.98 1477.92 1022.589 28.05 28.01 8.632 3.10409 4.61485 28.97 1477.87 1022.580 28.35 28.30 8.640 3.10402 4.61356 28.96 1477.90 1022.574 28.65 28.60 8.633 3.11087 4.62477 29.03 1477.97 1022.637 28.95 28.90 8.626 3.11709 4.63498 29.10 1478.03 1022.694 29.25 29.20 8.628 3.12258 4.64282 29.16 1478.11 1022.737 29.55 29.50 8.639 3.12408 4.64358 29.17 1478.17 1022.742 29.85 29.80 8.652 3.12443 4.64224 29.16 1478.21 1022.736 30.15 30.10 8.659 3.12567 4.64316 29.17 1478.25 1022.742 30.45 30.40 8.667 3.12852 4.64627 29.19 1478.32 1022.760 30.75 30.70 8.676 3.13294 4.65162 29.23 1478.40 1022.790 31.05 31.00 8.686 3.13474 4.65290 29.24 1478.46 1022.797 31.35 31.29 8.696 3.13748 4.65560 29.26 1478.52 1022.813 31.65 31.59 8.700 3.14002 4.65876 29.28 1478.57 1022.831 31.95 31.89 8.702 3.14238 4.66202 29.30 1478.61 1022.850 32.25 32.19 8.707 3.14410 4.66390 29.31 1478.65 1022.862 32.55 32.49 8.717 3.14506 4.66387 29.32 1478.70 1022.862 32.85 32.79 8.726 3.14589 4.66393 29.32 1478.74 1022.863 33.15 33.09 8.729 3.14907 4.66820 29.35 1478.79 1022.888 33.45 33.39 8.733 3.15096 4.67051 29.36 1478.83 1022.901 33.75 33.69 8.735 3.15171 4.67125 29.37 1478.85 1022.907 34.05 33.98 8.736 3.15371 4.67413 29.39 1478.88 1022.924 34.35 34.28 8.739 3.15807 4.68011 29.43 1478.95 1022.957 34.65 34.58 8.746 3.15980 4.68178 29.44 1479.00 1022.967 34.95 34.88 8.756 3.16671 4.69061 29.51 1479.12 1023.016 35.30 35.23 8.780 3.17066 4.69306 29.53 1479.24 1023.030