*2026/01/16 09:57:49.47 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/24 17:09:09.000 END TIME : UTC 2024/04/24 17:09:36.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 140 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.98 2 Depth metres 0.15 41.79 3 Temperature 'deg C (ITS90)' 9.903 11.996 4 Conductivity S/m 3.32496 3.50648 5 Conductance:Specific S/m 4.49622 5.02065 6 Salinity PSS-78 28.52 31.97 7 Speed:Sound m/s 1486.13 1489.65 8 Density kg/m^3 1021.565 1024.794 $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 : 87 LATITUDE : 48 53.07350 N ! (deg min) LONGITUDE : 125 3.37860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240424_170909 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 140 140 MERGEHDR 1.3 2026/01/16 09:53:50 140 140 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 140 140 CALIB 12.1 2026/01/16 09:56:48 140 140 CLEAN 5.3 2026/01/16 09:57:49 140 140 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.996 3.32686 4.49622 28.52 1489.08 1021.565 0.45 0.45 11.984 3.32611 4.49675 28.52 1489.05 1021.570 0.75 0.75 11.928 3.32615 4.50358 28.57 1488.91 1021.615 1.05 1.05 11.872 3.32496 4.50875 28.60 1488.76 1021.650 1.35 1.35 11.851 3.32585 4.51255 28.62 1488.72 1021.674 1.65 1.65 11.832 3.32937 4.51967 28.67 1488.71 1021.716 1.95 1.95 11.817 3.33584 4.53027 28.74 1488.75 1021.777 2.25 2.25 11.826 3.34266 4.53844 28.80 1488.86 1021.821 2.55 2.54 11.834 3.34715 4.54359 28.84 1488.93 1021.850 2.85 2.84 11.846 3.35221 4.54894 28.88 1489.03 1021.879 3.15 3.14 11.853 3.37252 4.57568 29.07 1489.28 1022.026 3.45 3.44 11.848 3.38460 4.59265 29.18 1489.41 1022.120 3.75 3.74 11.849 3.39634 4.60841 29.30 1489.55 1022.207 4.05 4.04 11.836 3.39952 4.61441 29.34 1489.56 1022.243 4.35 4.34 11.819 3.40888 4.62930 29.44 1489.63 1022.327 4.65 4.64 11.816 3.41078 4.63220 29.46 1489.65 1022.344 4.95 4.94 11.782 3.41199 4.63819 29.50 1489.58 1022.382 5.25 5.24 11.743 3.41249 4.64372 29.53 1489.49 1022.417 5.55 5.54 11.711 3.41365 4.64939 29.57 1489.43 1022.453 5.85 5.84 11.688 3.41777 4.65792 29.63 1489.42 1022.503 6.15 6.13 11.669 3.42155 4.66548 29.68 1489.42 1022.548 6.45 6.43 11.604 3.42490 4.67837 29.76 1489.30 1022.626 6.75 6.73 11.514 3.42013 4.68329 29.79 1489.02 1022.663 7.05 7.03 11.447 3.41576 4.68589 29.80 1488.81 1022.685 7.35 7.33 11.377 3.41033 4.68750 29.80 1488.57 1022.702 7.65 7.63 11.263 3.41427 4.70768 29.93 1488.33 1022.824 7.95 7.93 11.126 3.42267 4.73708 30.13 1488.08 1022.999 8.25 8.23 10.998 3.42726 4.76034 30.28 1487.81 1023.139 8.55 8.53 10.930 3.42953 4.77248 30.36 1487.67 1023.213 8.85 8.83 10.819 3.43182 4.79045 30.47 1487.42 1023.322 9.15 9.12 10.709 3.43756 4.81335 30.62 1487.21 1023.458 9.45 9.42 10.646 3.44082 4.82642 30.70 1487.09 1023.536 9.75 9.72 10.600 3.44235 4.83472 30.76 1487.00 1023.587 10.05 10.02 10.556 3.44220 4.84057 30.79 1486.89 1023.624 10.35 10.32 10.518 3.44227 4.84586 30.83 1486.79 1023.657 10.65 10.62 10.496 3.44215 4.84862 30.84 1486.74 1023.675 10.95 10.92 10.481 3.44235 4.85100 30.86 1486.71 1023.690 11.25 11.22 10.461 3.44338 4.85513 30.88 1486.68 1023.716 11.55 11.51 10.429 3.44676 4.86430 30.95 1486.64 1023.770 11.85 11.81 10.401 3.44809 4.87010 30.98 1486.59 1023.805 12.15 12.11 10.381 3.44737 4.87179 30.99 1486.53 1023.817 12.45 12.41 10.348 3.44721 4.87613 31.02 1486.45 1023.845 12.75 12.71 10.311 3.44995 4.88515 31.08 1486.39 1023.898 13.05 13.01 10.276 3.45179 4.89258 31.13 1486.33 1023.943 13.35 13.31 10.222 3.45599 4.90599 31.21 1486.25 1024.022 13.65 13.60 10.197 3.45699 4.91091 31.25 1486.20 1024.052 13.95 13.90 10.186 3.45647 4.91171 31.25 1486.17 1024.058 14.25 14.20 10.177 3.45760 4.91454 31.27 1486.17 1024.076 14.55 14.50 10.169 3.45888 4.91758 31.29 1486.17 1024.094 14.85 14.80 10.160 3.45982 4.92010 31.31 1486.16 1024.110 15.15 15.10 10.152 3.46054 4.92222 31.32 1486.15 1024.124 15.45 15.40 10.146 3.46156 4.92456 31.33 1486.15 1024.138 15.75 15.70 10.139 3.46199 4.92609 31.34 1486.15 1024.148 16.05 15.99 10.133 3.46284 4.92818 31.36 1486.15 1024.161 16.35 16.29 10.119 3.46413 4.93194 31.38 1486.13 1024.184 16.65 16.59 10.110 3.46796 4.93867 31.43 1486.16 1024.223 16.95 16.89 10.101 3.47043 4.94354 31.46 1486.17 1024.252 17.25 17.19 10.092 3.47175 4.94670 31.48 1486.17 1024.271 17.55 17.49 10.087 3.47397 4.95047 31.51 1486.19 1024.294 17.85 17.79 10.079 3.47400 4.95165 31.52 1486.17 1024.302 18.15 18.08 10.074 3.47354 4.95176 31.52 1486.16 1024.304 18.45 18.38 10.071 3.47368 4.95234 31.52 1486.16 1024.309 18.75 18.68 10.066 3.47383 4.95327 31.53 1486.15 1024.315 19.05 18.98 10.058 3.47445 4.95536 31.54 1486.14 1024.329 19.35 19.28 10.052 3.47617 4.95854 31.56 1486.16 1024.348 19.65 19.58 10.048 3.47719 4.96068 31.58 1486.16 1024.361 19.95 19.88 10.039 3.48106 4.96740 31.62 1486.19 1024.400 20.25 20.17 10.027 3.48351 4.97260 31.66 1486.19 1024.431 20.55 20.47 10.023 3.48444 4.97456 31.67 1486.20 1024.443 20.85 20.77 10.017 3.48571 4.97715 31.69 1486.21 1024.459 21.15 21.07 10.015 3.48756 4.98005 31.71 1486.23 1024.476 21.45 21.37 10.011 3.48990 4.98404 31.74 1486.25 1024.500 21.75 21.67 10.007 3.49059 4.98556 31.75 1486.25 1024.510 22.05 21.96 10.006 3.49090 4.98617 31.75 1486.26 1024.515 22.35 22.26 10.003 3.49159 4.98754 31.76 1486.27 1024.524 22.65 22.56 10.002 3.49174 4.98788 31.76 1486.27 1024.527 22.95 22.86 10.000 3.49255 4.98941 31.77 1486.28 1024.537 23.25 23.16 9.999 3.49292 4.99005 31.78 1486.29 1024.542 23.55 23.46 9.999 3.49285 4.98996 31.77 1486.29 1024.542 23.85 23.76 9.996 3.49365 4.99146 31.78 1486.30 1024.552 24.15 24.05 9.995 3.49446 4.99284 31.79 1486.31 1024.561 24.45 24.35 9.993 3.49677 4.99637 31.82 1486.34 1024.582 24.75 24.65 9.992 3.49808 4.99841 31.83 1486.36 1024.594 25.05 24.95 9.990 3.49947 5.00067 31.85 1486.37 1024.608 25.35 25.25 9.989 3.49985 5.00130 31.85 1486.38 1024.613 25.65 25.55 9.988 3.50060 5.00255 31.86 1486.39 1024.621 25.95 25.85 9.989 3.50122 5.00331 31.87 1486.41 1024.627 26.25 26.14 9.987 3.50151 5.00401 31.87 1486.41 1024.632 26.55 26.44 9.986 3.50156 5.00427 31.87 1486.41 1024.635 26.85 26.74 9.985 3.50188 5.00482 31.88 1486.42 1024.639 27.15 27.04 9.983 3.50201 5.00529 31.88 1486.42 1024.643 27.45 27.34 9.982 3.50178 5.00506 31.88 1486.42 1024.643 27.75 27.64 9.981 3.50199 5.00555 31.88 1486.42 1024.647 28.05 27.93 9.979 3.50228 5.00624 31.89 1486.43 1024.652 28.35 28.23 9.978 3.50238 5.00661 31.89 1486.43 1024.656 28.65 28.53 9.977 3.50360 5.00847 31.90 1486.45 1024.667 28.95 28.83 9.975 3.50332 5.00826 31.90 1486.44 1024.667 29.25 29.13 9.974 3.50321 5.00836 31.90 1486.44 1024.669 29.55 29.43 9.972 3.50360 5.00913 31.90 1486.45 1024.675 29.85 29.73 9.971 3.50376 5.00953 31.91 1486.45 1024.678 30.15 30.02 9.968 3.50435 5.01081 31.92 1486.46 1024.687 30.45 30.32 9.964 3.50435 5.01137 31.92 1486.45 1024.692 30.75 30.62 9.962 3.50500 5.01260 31.93 1486.46 1024.700 31.05 30.92 9.960 3.50485 5.01260 31.93 1486.46 1024.701 31.35 31.22 9.960 3.50498 5.01282 31.93 1486.46 1024.704 31.65 31.52 9.957 3.50498 5.01320 31.93 1486.46 1024.707 31.95 31.81 9.955 3.50530 5.01400 31.94 1486.47 1024.713 32.25 32.11 9.954 3.50542 5.01438 31.94 1486.47 1024.716 32.55 32.41 9.949 3.50555 5.01521 31.94 1486.46 1024.723 32.85 32.71 9.946 3.50545 5.01548 31.94 1486.46 1024.725 33.15 33.01 9.944 3.50594 5.01647 31.95 1486.46 1024.732 33.45 33.31 9.944 3.50594 5.01655 31.95 1486.47 1024.734 33.75 33.61 9.942 3.50598 5.01678 31.95 1486.47 1024.737 34.05 33.90 9.942 3.50615 5.01715 31.96 1486.47 1024.740 34.35 34.20 9.940 3.50616 5.01741 31.96 1486.48 1024.743 34.65 34.50 9.939 3.50641 5.01788 31.96 1486.48 1024.747 34.95 34.80 9.935 3.50637 5.01836 31.96 1486.48 1024.751 35.25 35.10 9.933 3.50620 5.01850 31.96 1486.47 1024.753 35.55 35.40 9.929 3.50636 5.01927 31.97 1486.47 1024.759 35.85 35.69 9.928 3.50604 5.01900 31.97 1486.47 1024.759 36.15 35.99 9.928 3.50648 5.01963 31.97 1486.48 1024.763 36.45 36.29 9.927 3.50583 5.01887 31.96 1486.47 1024.761 36.75 36.59 9.925 3.50589 5.01913 31.97 1486.47 1024.763 37.05 36.89 9.926 3.50621 5.01953 31.97 1486.48 1024.767 37.35 37.19 9.923 3.50601 5.01962 31.97 1486.48 1024.769 37.65 37.49 9.924 3.50562 5.01898 31.96 1486.48 1024.766 37.95 37.78 9.923 3.50572 5.01917 31.97 1486.48 1024.769 38.25 38.08 9.925 3.50597 5.01925 31.97 1486.50 1024.770 38.55 38.38 9.924 3.50607 5.01963 31.97 1486.50 1024.774 38.85 38.68 9.922 3.50530 5.01869 31.96 1486.49 1024.770 39.15 38.98 9.920 3.50532 5.01903 31.96 1486.49 1024.773 39.45 39.28 9.917 3.50539 5.01967 31.97 1486.49 1024.778 39.75 39.57 9.917 3.50610 5.02063 31.97 1486.50 1024.785 40.05 39.87 9.916 3.50563 5.02014 31.97 1486.50 1024.783 40.35 40.17 9.915 3.50529 5.01981 31.97 1486.50 1024.783 40.65 40.47 9.914 3.50539 5.02003 31.97 1486.50 1024.785 40.95 40.77 9.913 3.50551 5.02037 31.97 1486.50 1024.789 41.25 41.07 9.910 3.50438 5.01915 31.96 1486.49 1024.783 41.55 41.36 9.903 3.50471 5.02065 31.97 1486.48 1024.793 41.98 41.79 9.903 3.50453 5.02046 31.97 1486.48 1024.794