*2026/01/16 09:57:51.70 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 21:54:46.000 END TIME : UTC 2024/06/11 21:55:05.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.89 2 Depth metres 0.15 28.79 3 Temperature 'deg C (ITS90)' 9.527 15.832 4 Conductivity S/m 2.87977 3.55677 5 Conductance:Specific S/m 3.52705 5.04834 6 Salinity PSS-78 22.02 32.12 7 Speed:Sound m/s 1485.08 1496.49 8 Density kg/m^3 1015.827 1024.915 $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 : 148 LATITUDE : 48 54.35920 N ! (deg min) LONGITUDE : 125 1.01760 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_215446 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 97 97 MERGEHDR 1.3 2026/01/16 09:53:54 97 97 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 97 97 CALIB 12.1 2026/01/16 09:56:51 97 97 CLEAN 5.3 2026/01/16 09:57:51 97 97 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 15.832 2.88034 3.52705 22.02 1494.32 1015.827 0.45 0.45 15.815 2.87977 3.52781 22.03 1494.28 1015.836 0.75 0.75 15.803 2.88149 3.53097 22.05 1494.27 1015.856 1.05 1.05 15.809 2.88437 3.53400 22.07 1494.31 1015.872 1.35 1.35 15.789 2.88762 3.53973 22.11 1494.30 1015.907 1.65 1.66 15.762 2.89198 3.54743 22.16 1494.28 1015.953 1.95 1.96 15.740 2.89556 3.55373 22.20 1494.26 1015.992 2.25 2.26 15.735 2.89706 3.55594 22.22 1494.27 1016.005 2.55 2.56 15.733 2.89753 3.55678 22.22 1494.27 1016.011 2.85 2.86 15.722 2.89976 3.56046 22.25 1494.27 1016.034 3.15 3.16 15.722 2.90098 3.56194 22.26 1494.28 1016.043 3.45 3.46 15.728 2.90233 3.56308 22.26 1494.32 1016.049 3.75 3.76 15.725 2.90360 3.56492 22.28 1494.33 1016.061 4.05 4.06 15.712 2.91149 3.57572 22.35 1494.38 1016.121 4.35 4.36 15.495 2.98795 3.68928 23.12 1494.57 1016.759 4.65 4.66 14.791 3.30665 4.15500 26.33 1496.00 1019.362 4.95 4.96 14.476 3.42883 4.34292 27.63 1496.49 1020.428 5.25 5.26 13.882 3.48317 4.47919 28.55 1495.61 1021.257 5.55 5.56 13.331 3.52088 4.59275 29.31 1494.67 1021.954 5.85 5.86 12.568 3.55677 4.73376 30.25 1493.20 1022.823 6.15 6.16 12.080 3.55485 4.79354 30.63 1491.98 1023.207 6.45 6.46 11.813 3.54844 4.81953 30.78 1491.25 1023.380 6.75 6.76 11.519 3.54464 4.85321 30.99 1490.48 1023.595 7.05 7.06 11.304 3.54040 4.87602 31.13 1489.90 1023.743 7.35 7.36 11.172 3.53745 4.88978 31.21 1489.54 1023.832 7.65 7.66 11.087 3.53431 4.89689 31.25 1489.29 1023.880 7.95 7.95 10.994 3.53117 4.90522 31.30 1489.02 1023.935 8.25 8.25 10.900 3.52392 4.90796 31.31 1488.71 1023.959 8.55 8.55 10.820 3.51915 4.91232 31.33 1488.45 1023.991 8.85 8.85 10.726 3.51603 4.92084 31.38 1488.18 1024.047 9.15 9.15 10.657 3.51448 4.92824 31.43 1487.99 1024.094 9.45 9.45 10.615 3.51225 4.93088 31.44 1487.87 1024.113 9.75 9.75 10.575 3.51056 4.93403 31.46 1487.75 1024.135 10.05 10.04 10.541 3.50973 4.93759 31.48 1487.66 1024.159 10.35 10.34 10.457 3.50715 4.94559 31.52 1487.42 1024.210 10.65 10.64 10.424 3.50572 4.94817 31.54 1487.32 1024.228 10.95 10.94 10.408 3.50391 4.94787 31.53 1487.27 1024.229 11.25 11.24 10.379 3.50376 4.95168 31.56 1487.20 1024.253 11.55 11.54 10.349 3.50325 4.95527 31.58 1487.12 1024.277 11.85 11.84 10.325 3.50283 4.95806 31.60 1487.06 1024.295 12.15 12.13 10.311 3.50277 4.95996 31.61 1487.02 1024.308 12.45 12.43 10.299 3.50281 4.96168 31.62 1487.00 1024.319 12.75 12.73 10.270 3.50245 4.96520 31.64 1486.93 1024.342 13.05 13.03 10.250 3.50222 4.96767 31.65 1486.88 1024.358 13.35 13.33 10.219 3.50188 4.97164 31.68 1486.80 1024.384 13.65 13.63 10.200 3.50183 4.97413 31.69 1486.76 1024.400 13.95 13.93 10.176 3.50179 4.97756 31.71 1486.70 1024.422 14.25 14.22 10.154 3.50184 4.98075 31.73 1486.65 1024.442 14.55 14.52 10.136 3.50158 4.98291 31.75 1486.60 1024.457 14.85 14.82 10.101 3.50059 4.98643 31.77 1486.51 1024.479 15.15 15.12 10.068 3.49836 4.98797 31.77 1486.40 1024.491 15.45 15.42 10.045 3.49725 4.98970 31.78 1486.33 1024.504 15.75 15.72 10.006 3.49479 4.99167 31.79 1486.21 1024.518 16.05 16.02 9.955 3.49369 4.99740 31.83 1486.07 1024.555 16.35 16.31 9.924 3.49258 5.00022 31.84 1485.98 1024.573 16.65 16.61 9.904 3.49179 5.00192 31.85 1485.93 1024.585 16.95 16.91 9.867 3.49118 5.00647 31.88 1485.83 1024.614 17.25 17.21 9.849 3.49144 5.00944 31.90 1485.79 1024.633 17.55 17.51 9.844 3.49109 5.00966 31.90 1485.78 1024.635 17.85 17.81 9.840 3.49099 5.01003 31.90 1485.77 1024.639 18.15 18.11 9.828 3.49089 5.01162 31.91 1485.74 1024.650 18.45 18.40 9.820 3.49103 5.01291 31.92 1485.73 1024.658 18.75 18.70 9.813 3.49139 5.01452 31.93 1485.72 1024.669 19.05 19.00 9.804 3.49230 5.01703 31.94 1485.71 1024.685 19.35 19.30 9.797 3.49175 5.01729 31.94 1485.69 1024.688 19.65 19.60 9.780 3.49174 5.01968 31.96 1485.66 1024.703 19.95 19.90 9.765 3.49073 5.02052 31.96 1485.61 1024.710 20.25 20.19 9.747 3.49026 5.02242 31.97 1485.56 1024.723 20.55 20.49 9.724 3.48932 5.02434 31.98 1485.50 1024.736 20.85 20.79 9.705 3.48950 5.02739 32.00 1485.45 1024.755 21.15 21.09 9.691 3.48820 5.02759 32.00 1485.41 1024.758 21.45 21.39 9.685 3.48805 5.02821 32.00 1485.39 1024.763 21.75 21.69 9.691 3.48966 5.02961 32.02 1485.43 1024.772 22.05 21.98 9.681 3.48762 5.02819 32.00 1485.39 1024.766 22.35 22.28 9.664 3.48759 5.03053 32.02 1485.35 1024.781 22.65 22.58 9.657 3.48691 5.03062 32.02 1485.33 1024.783 22.95 22.88 9.653 3.48669 5.03086 32.02 1485.32 1024.786 23.25 23.18 9.647 3.48648 5.03146 32.02 1485.31 1024.791 23.55 23.48 9.636 3.48611 5.03248 32.03 1485.28 1024.799 23.85 23.78 9.629 3.48602 5.03335 32.03 1485.26 1024.805 24.15 24.07 9.622 3.48610 5.03448 32.04 1485.25 1024.813 24.45 24.37 9.619 3.48559 5.03421 32.04 1485.24 1024.813 24.75 24.67 9.612 3.48559 5.03519 32.04 1485.23 1024.820 25.05 24.97 9.605 3.48574 5.03653 32.05 1485.22 1024.829 25.35 25.27 9.601 3.48474 5.03560 32.04 1485.20 1024.825 25.65 25.57 9.599 3.48570 5.03722 32.06 1485.21 1024.836 25.95 25.86 9.592 3.48529 5.03771 32.06 1485.19 1024.840 26.25 26.16 9.589 3.48504 5.03774 32.06 1485.19 1024.841 26.55 26.46 9.586 3.48572 5.03925 32.07 1485.19 1024.851 26.85 26.76 9.585 3.48678 5.04084 32.08 1485.21 1024.861 27.15 27.06 9.581 3.48573 5.03994 32.07 1485.19 1024.858 27.45 27.36 9.569 3.48534 5.04108 32.08 1485.16 1024.866 27.75 27.65 9.549 3.48514 5.04384 32.09 1485.11 1024.884 28.05 27.95 9.544 3.48542 5.04491 32.10 1485.10 1024.891 28.35 28.25 9.541 3.48647 5.04687 32.11 1485.11 1024.903 28.65 28.55 9.533 3.48571 5.04699 32.11 1485.09 1024.906 28.89 28.79 9.527 3.48610 5.04834 32.12 1485.08 1024.915