*2026/01/16 09:57:54.46 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 16:40:08.000 END TIME : UTC 2024/09/04 16:40:30.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 113 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.66 2 Depth metres 0.15 33.5 3 Temperature 'deg C (ITS90)' 9.729 15.841 4 Conductivity S/m 3.50414 3.88342 5 Conductance:Specific S/m 4.75389 5.04841 6 Salinity PSS-78 30.64 32.15 7 Speed:Sound m/s 1485.93 1504.27 8 Density kg/m^3 1022.433 1024.924 $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 : 237 LATITUDE : 48 55.78610 N ! (deg min) LONGITUDE : 125 23.50850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_164008 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 113 113 MERGEHDR 1.3 2026/01/16 09:54:05 113 113 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 113 113 CALIB 12.1 2026/01/16 09:56:55 113 113 CLEAN 5.3 2026/01/16 09:57:54 113 113 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 15.841 3.88308 4.75389 30.64 1504.27 1022.433 0.45 0.45 15.798 3.88342 4.75928 30.68 1504.18 1022.471 0.75 0.75 15.776 3.88222 4.76040 30.68 1504.12 1022.482 1.05 1.05 15.751 3.87872 4.75907 30.67 1504.04 1022.481 1.35 1.35 15.725 3.87702 4.75994 30.68 1503.97 1022.491 1.65 1.65 15.675 3.87612 4.76472 30.71 1503.85 1022.527 1.95 1.94 15.628 3.87077 4.76365 30.70 1503.69 1022.531 2.25 2.24 15.526 3.86709 4.77108 30.74 1503.43 1022.590 2.55 2.54 15.371 3.86310 4.78445 30.83 1503.05 1022.691 2.85 2.84 15.235 3.84073 4.77289 30.74 1502.51 1022.651 3.15 3.14 15.104 3.82362 4.76710 30.69 1502.04 1022.641 3.45 3.44 14.902 3.81907 4.78555 30.80 1501.54 1022.776 3.75 3.74 14.624 3.81124 4.80931 30.95 1500.82 1022.952 4.05 4.04 14.340 3.80206 4.83233 31.10 1500.07 1023.123 4.35 4.34 13.983 3.79475 4.86712 31.32 1499.17 1023.368 4.65 4.63 13.653 3.75278 4.85444 31.20 1497.95 1023.345 4.95 4.93 13.439 3.72325 4.84309 31.10 1497.13 1023.312 5.25 5.23 13.106 3.69067 4.84265 31.07 1495.98 1023.354 5.55 5.53 12.733 3.67355 4.86785 31.22 1494.90 1023.540 5.85 5.83 12.493 3.66359 4.88570 31.32 1494.22 1023.668 6.15 6.13 12.254 3.65986 4.91207 31.48 1493.60 1023.842 6.45 6.43 12.100 3.64068 4.90663 31.43 1493.01 1023.830 6.75 6.73 11.977 3.63505 4.91531 31.48 1492.65 1023.892 7.05 7.03 11.872 3.63247 4.92577 31.54 1492.37 1023.962 7.35 7.32 11.788 3.62946 4.93295 31.59 1492.14 1024.011 7.65 7.62 11.731 3.62433 4.93358 31.58 1491.94 1024.022 7.95 7.92 11.690 3.62304 4.93740 31.61 1491.83 1024.048 8.25 8.22 11.655 3.62080 4.93899 31.61 1491.72 1024.062 8.55 8.52 11.622 3.61923 4.94130 31.63 1491.63 1024.079 8.85 8.82 11.588 3.61835 4.94477 31.65 1491.54 1024.103 9.15 9.12 11.558 3.61868 4.94923 31.68 1491.47 1024.131 9.45 9.41 11.535 3.61542 4.94784 31.66 1491.39 1024.127 9.75 9.71 11.504 3.61399 4.95015 31.68 1491.30 1024.144 10.05 10.01 11.478 3.60951 4.94746 31.65 1491.19 1024.133 10.35 10.31 11.428 3.60793 4.95217 31.68 1491.05 1024.165 10.65 10.61 11.387 3.60697 4.95634 31.71 1490.94 1024.193 10.95 10.91 11.341 3.60282 4.95696 31.71 1490.78 1024.202 11.25 11.21 11.315 3.59790 4.95378 31.68 1490.66 1024.188 11.55 11.50 11.255 3.59495 4.95786 31.70 1490.49 1024.217 11.85 11.80 11.194 3.59101 4.96082 31.72 1490.29 1024.240 12.15 12.10 11.151 3.58840 4.96306 31.73 1490.16 1024.258 12.45 12.40 11.096 3.58512 4.96604 31.74 1489.99 1024.280 12.75 12.70 11.028 3.58106 4.96984 31.76 1489.78 1024.309 13.05 13.00 10.981 3.57480 4.96764 31.74 1489.59 1024.302 13.35 13.30 10.941 3.57281 4.97036 31.76 1489.47 1024.321 13.65 13.59 10.897 3.57086 4.97375 31.77 1489.34 1024.345 13.95 13.89 10.868 3.57036 4.97715 31.79 1489.27 1024.367 14.25 14.19 10.856 3.57007 4.97831 31.80 1489.24 1024.376 14.55 14.49 10.843 3.57036 4.98056 31.82 1489.22 1024.391 14.85 14.79 10.836 3.56934 4.98006 31.81 1489.19 1024.390 15.15 15.09 10.833 3.56970 4.98097 31.82 1489.20 1024.396 15.45 15.39 10.824 3.56913 4.98142 31.82 1489.17 1024.401 15.75 15.68 10.816 3.56908 4.98259 31.83 1489.15 1024.409 16.05 15.98 10.801 3.56755 4.98251 31.82 1489.10 1024.411 16.35 16.28 10.774 3.56651 4.98481 31.84 1489.03 1024.427 16.65 16.58 10.748 3.56313 4.98364 31.83 1488.93 1024.424 16.95 16.88 10.729 3.56278 4.98587 31.84 1488.88 1024.439 17.25 17.18 10.708 3.56179 4.98732 31.85 1488.82 1024.450 17.55 17.48 10.692 3.56057 4.98793 31.85 1488.77 1024.456 17.85 17.77 10.678 3.55949 4.98841 31.85 1488.73 1024.461 18.15 18.07 10.660 3.55757 4.98814 31.85 1488.66 1024.462 18.45 18.37 10.649 3.55680 4.98863 31.85 1488.63 1024.467 18.75 18.67 10.633 3.55646 4.99035 31.86 1488.59 1024.479 19.05 18.97 10.617 3.55619 4.99227 31.87 1488.55 1024.492 19.35 19.27 10.608 3.55581 4.99300 31.87 1488.53 1024.498 19.65 19.56 10.601 3.55362 4.99093 31.86 1488.49 1024.489 19.95 19.86 10.590 3.55284 4.99135 31.86 1488.46 1024.493 20.25 20.16 10.567 3.55164 4.99288 31.87 1488.39 1024.505 20.55 20.46 10.542 3.55080 4.99521 31.88 1488.32 1024.521 20.85 20.76 10.517 3.54919 4.99650 31.89 1488.25 1024.531 21.15 21.06 10.506 3.54841 4.99690 31.89 1488.21 1024.535 21.45 21.36 10.491 3.54855 4.99919 31.90 1488.18 1024.550 21.75 21.65 10.491 3.54863 4.99934 31.90 1488.19 1024.552 22.05 21.95 10.485 3.54835 4.99975 31.91 1488.18 1024.556 22.35 22.25 10.478 3.54675 4.99847 31.90 1488.14 1024.551 22.65 22.55 10.470 3.54633 4.99906 31.90 1488.12 1024.556 22.95 22.85 10.461 3.54525 4.99886 31.90 1488.09 1024.557 23.25 23.15 10.423 3.54421 5.00265 31.92 1487.99 1024.582 23.55 23.45 10.365 3.53910 5.00374 31.92 1487.78 1024.593 23.85 23.74 10.313 3.53420 5.00417 31.92 1487.60 1024.601 24.15 24.04 10.269 3.53263 5.00816 31.94 1487.47 1024.627 24.45 24.34 10.248 3.53238 5.01080 31.95 1487.42 1024.644 24.75 24.64 10.238 3.53129 5.01064 31.95 1487.39 1024.646 25.05 24.94 10.229 3.53161 5.01232 31.96 1487.37 1024.657 25.35 25.24 10.225 3.53145 5.01278 31.96 1487.36 1024.661 25.65 25.53 10.227 3.53225 5.01357 31.97 1487.39 1024.666 25.95 25.83 10.223 3.53174 5.01343 31.97 1487.37 1024.667 26.25 26.13 10.209 3.53089 5.01426 31.97 1487.33 1024.674 26.55 26.43 10.194 3.52999 5.01506 31.98 1487.29 1024.680 26.85 26.73 10.169 3.52871 5.01685 31.99 1487.21 1024.693 27.15 27.03 10.163 3.52630 5.01428 31.97 1487.17 1024.681 27.45 27.33 10.127 3.52479 5.01715 31.98 1487.07 1024.700 27.75 27.62 10.106 3.52429 5.01950 32.00 1487.02 1024.716 28.05 27.92 10.083 3.52252 5.02034 32.00 1486.94 1024.723 28.35 28.22 10.067 3.52195 5.02175 32.01 1486.90 1024.733 28.65 28.52 10.047 3.52193 5.02455 32.02 1486.85 1024.751 28.95 28.82 10.021 3.51969 5.02510 32.02 1486.76 1024.757 29.25 29.12 9.989 3.51820 5.02755 32.04 1486.67 1024.774 29.55 29.41 9.953 3.51517 5.02848 32.04 1486.54 1024.783 29.85 29.71 9.899 3.51143 5.03081 32.05 1486.36 1024.800 30.15 30.01 9.877 3.51080 5.03309 32.06 1486.31 1024.816 30.45 30.31 9.872 3.50985 5.03245 32.06 1486.29 1024.814 30.75 30.61 9.860 3.50968 5.03397 32.06 1486.26 1024.824 31.05 30.91 9.839 3.50844 5.03518 32.07 1486.19 1024.833 31.35 31.21 9.828 3.50884 5.03744 32.08 1486.17 1024.848 31.65 31.50 9.822 3.50878 5.03823 32.09 1486.16 1024.854 31.95 31.80 9.817 3.50828 5.03817 32.09 1486.15 1024.855 32.25 32.10 9.809 3.50735 5.03797 32.09 1486.12 1024.855 32.55 32.40 9.794 3.50611 5.03842 32.09 1486.07 1024.860 32.85 32.70 9.780 3.50530 5.03929 32.09 1486.03 1024.867 33.15 33.00 9.766 3.50568 5.04176 32.11 1486.01 1024.883 33.45 33.29 9.749 3.50414 5.04207 32.11 1485.95 1024.887 33.66 33.50 9.729 3.50649 5.04841 32.15 1485.93 1024.924