*2026/01/16 09:57:47.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/02 17:19:51.000 END TIME : UTC 2024/02/02 17:20:07.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 82 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.53 2 Depth metres 0.15 24.51 3 Temperature 'deg C (ITS90)' 8.474 9.765 4 Conductivity S/m 0.61814 3.33525 5 Conductance:Specific S/m 0.92332 4.82618 6 Salinity PSS-78 5.06 30.56 7 Speed:Sound m/s 1447.44 1483.55 8 Density kg/m^3 1003.796 1023.672 $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 : 38 LATITUDE : 50 3.76930 N ! (deg min) LONGITUDE : 127 16.20970 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240202_171951 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 82 82 MERGEHDR 1.3 2026/01/16 09:53:46 82 82 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:13 82 82 CALIB 12.1 2026/01/16 09:56:45 82 82 CLEAN 5.3 2026/01/16 09:57:47 82 82 $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 8.474 0.61814 0.92332 5.06 1447.44 1003.796 0.45 0.46 8.572 0.66146 0.98513 5.42 1448.30 1004.075 0.75 0.76 8.661 0.70118 1.04154 5.76 1449.07 1004.331 1.05 1.07 8.765 0.81226 1.20280 6.72 1450.69 1005.077 1.35 1.37 8.807 0.83461 1.23439 6.91 1451.10 1005.224 1.65 1.67 8.896 0.94066 1.38757 7.84 1452.60 1005.943 1.95 1.98 9.012 1.13963 1.67532 9.61 1455.24 1007.314 2.25 2.28 9.173 1.34801 1.97232 11.47 1458.16 1008.750 2.55 2.58 9.267 1.72100 2.51116 14.92 1462.73 1011.422 2.85 2.89 9.371 1.93752 2.81854 16.92 1465.57 1012.972 3.15 3.19 9.461 2.01801 2.92798 17.65 1466.80 1013.525 3.45 3.49 9.509 2.23028 3.23144 19.66 1469.43 1015.086 3.75 3.79 9.521 2.32577 3.36867 20.57 1470.59 1015.799 4.05 4.09 9.528 2.37111 3.43358 21.01 1471.16 1016.138 4.35 4.39 9.551 2.53914 3.67443 22.63 1473.22 1017.400 4.65 4.69 9.567 2.64131 3.82058 23.63 1474.49 1018.172 4.95 4.99 9.574 2.70238 3.90816 24.22 1475.24 1018.637 5.25 5.29 9.581 2.75579 3.98453 24.74 1475.91 1019.043 5.55 5.59 9.585 2.80523 4.05555 25.23 1476.52 1019.423 5.85 5.89 9.588 2.86712 4.14463 25.84 1477.28 1019.900 6.15 6.19 9.590 2.89043 4.17817 26.07 1477.57 1020.081 6.45 6.49 9.595 2.92891 4.23319 26.45 1478.05 1020.377 6.75 6.79 9.597 2.96588 4.28637 26.82 1478.51 1020.664 7.05 7.09 9.595 2.98433 4.31319 27.00 1478.74 1020.810 7.35 7.39 9.593 3.02181 4.36764 27.38 1479.19 1021.105 7.65 7.69 9.593 3.04914 4.40711 27.65 1479.53 1021.319 7.95 7.99 9.595 3.06344 4.42757 27.79 1479.71 1021.431 8.25 8.29 9.595 3.07318 4.44166 27.89 1479.84 1021.508 8.55 8.59 9.596 3.08806 4.46297 28.04 1480.03 1021.625 8.85 8.89 9.598 3.11883 4.50722 28.35 1480.41 1021.866 9.15 9.19 9.600 3.16329 4.57116 28.79 1480.97 1022.214 9.45 9.49 9.603 3.18544 4.60287 29.01 1481.25 1022.387 9.75 9.79 9.604 3.19948 4.62299 29.15 1481.43 1022.498 10.05 10.08 9.607 3.21079 4.63895 29.27 1481.58 1022.586 10.35 10.38 9.611 3.22098 4.65315 29.36 1481.72 1022.664 10.65 10.68 9.607 3.22745 4.66305 29.43 1481.80 1022.720 10.95 10.98 9.615 3.23775 4.67681 29.53 1481.95 1022.796 11.25 11.28 9.629 3.24741 4.68880 29.62 1482.11 1022.862 11.55 11.58 9.627 3.25908 4.70602 29.74 1482.25 1022.957 11.85 11.88 9.636 3.26740 4.71672 29.81 1482.39 1023.016 12.15 12.18 9.665 3.27986 4.73075 29.91 1482.62 1023.092 12.45 12.48 9.679 3.28499 4.73634 29.95 1482.73 1023.123 12.75 12.77 9.694 3.28946 4.74069 29.99 1482.83 1023.147 13.05 13.07 9.715 3.29323 4.74328 30.01 1482.93 1023.161 13.35 13.37 9.735 3.30197 4.75314 30.08 1483.10 1023.215 13.65 13.67 9.734 3.30894 4.76327 30.15 1483.19 1023.272 13.95 13.97 9.748 3.31249 4.76647 30.17 1483.27 1023.290 14.25 14.27 9.761 3.31569 4.76923 30.19 1483.35 1023.306 14.55 14.57 9.765 3.31786 4.77183 30.21 1483.39 1023.321 14.85 14.87 9.754 3.31839 4.77417 30.23 1483.37 1023.336 15.15 15.17 9.742 3.31807 4.77529 30.23 1483.34 1023.344 15.45 15.46 9.735 3.31754 4.77554 30.23 1483.32 1023.347 15.75 15.76 9.721 3.31722 4.77703 30.24 1483.29 1023.357 16.05 16.06 9.710 3.31645 4.77741 30.24 1483.25 1023.361 16.35 16.36 9.703 3.31703 4.77917 30.26 1483.25 1023.372 16.65 16.66 9.702 3.31825 4.78105 30.27 1483.26 1023.384 16.95 16.96 9.703 3.31820 4.78091 30.27 1483.27 1023.385 17.25 17.26 9.702 3.31947 4.78281 30.28 1483.29 1023.396 17.55 17.56 9.702 3.32153 4.78582 30.30 1483.32 1023.414 17.85 17.85 9.709 3.32378 4.78809 30.32 1483.37 1023.427 18.15 18.15 9.714 3.32939 4.79541 30.37 1483.46 1023.468 18.45 18.45 9.719 3.33188 4.79829 30.39 1483.51 1023.485 18.75 18.75 9.720 3.33467 4.80222 30.42 1483.55 1023.508 19.05 19.05 9.713 3.33525 4.80406 30.43 1483.54 1023.520 19.35 19.35 9.707 3.33517 4.80469 30.43 1483.53 1023.525 19.65 19.65 9.693 3.33463 4.80594 30.44 1483.49 1023.534 19.95 19.95 9.682 3.33414 4.80671 30.44 1483.46 1023.540 20.25 20.25 9.666 3.33380 4.80846 30.45 1483.42 1023.551 20.55 20.54 9.651 3.33471 4.81186 30.48 1483.39 1023.572 20.85 20.84 9.640 3.33407 4.81248 30.48 1483.36 1023.578 21.15 21.14 9.628 3.33366 4.81356 30.49 1483.33 1023.585 21.45 21.44 9.614 3.33388 4.81578 30.50 1483.30 1023.600 21.75 21.74 9.606 3.33332 4.81604 30.50 1483.28 1023.603 22.05 22.04 9.601 3.33336 4.81683 30.50 1483.27 1023.609 22.35 22.34 9.600 3.33329 4.81694 30.51 1483.27 1023.611 22.65 22.63 9.595 3.33325 4.81753 30.51 1483.26 1023.615 22.95 22.93 9.591 3.33330 4.81817 30.51 1483.26 1023.620 23.25 23.23 9.568 3.33350 4.82163 30.53 1483.20 1023.642 23.55 23.53 9.547 3.33321 4.82418 30.55 1483.15 1023.658 23.85 23.83 9.542 3.33351 4.82530 30.56 1483.14 1023.666 24.15 24.13 9.538 3.33378 4.82618 30.56 1483.14 1023.672 24.53 24.51 9.538 3.33324 4.82544 30.56 1483.14 1023.670