*2026/01/16 09:57:50.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/26 00:10:33.000 END TIME : UTC 2024/04/26 00:10:48.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 80 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.72 2 Depth metres 0.15 23.65 3 Temperature 'deg C (ITS90)' 10.69 10.794 4 Conductivity S/m 3.25199 3.39887 5 Conductance:Specific S/m 4.54264 4.76163 6 Salinity PSS-78 28.73 30.25 7 Speed:Sound m/s 1485.1 1486.93 8 Density kg/m^3 1021.936 1023.237 $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 : 101 LATITUDE : 49 12.88460 N ! (deg min) LONGITUDE : 125 55.97450 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240426_001033 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:58 80 80 MERGEHDR 1.3 2026/01/16 09:53:50 80 80 HDREDIT2 3.2 2026/01/16 09:55:04 ? ? REMOVECH 8.2 2026/01/16 09:56:16 80 80 CALIB 12.1 2026/01/16 09:56:48 80 80 CLEAN 5.3 2026/01/16 09:57:50 80 80 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:04 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 09:56:16 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 10.793 3.25630 4.54885 28.77 1485.13 1021.967 0.45 0.45 10.794 3.25622 4.54858 28.77 1485.14 1021.967 0.75 0.75 10.794 3.25199 4.54264 28.73 1485.10 1021.936 1.05 1.05 10.794 3.25222 4.54298 28.73 1485.10 1021.939 1.35 1.35 10.793 3.25358 4.54502 28.75 1485.12 1021.952 1.65 1.65 10.793 3.25505 4.54710 28.76 1485.14 1021.964 1.95 1.95 10.791 3.26016 4.55445 28.81 1485.20 1022.006 2.25 2.24 10.786 3.26338 4.55959 28.85 1485.23 1022.035 2.55 2.54 10.781 3.26690 4.56519 28.89 1485.27 1022.068 2.85 2.84 10.775 3.27326 4.57478 28.95 1485.33 1022.122 3.15 3.14 10.772 3.27997 4.58459 29.02 1485.41 1022.177 3.45 3.44 10.769 3.28629 4.59375 29.08 1485.48 1022.228 3.75 3.74 10.768 3.29062 4.59993 29.13 1485.53 1022.263 4.05 4.04 10.767 3.29464 4.60565 29.17 1485.58 1022.296 4.35 4.34 10.767 3.29688 4.60880 29.19 1485.61 1022.314 4.65 4.64 10.766 3.29850 4.61122 29.21 1485.63 1022.329 4.95 4.94 10.766 3.29898 4.61188 29.21 1485.64 1022.333 5.25 5.24 10.767 3.30491 4.62010 29.27 1485.72 1022.379 5.55 5.54 10.766 3.30944 4.62656 29.31 1485.78 1022.416 5.85 5.83 10.765 3.31075 4.62850 29.33 1485.79 1022.428 6.15 6.13 10.765 3.31185 4.63003 29.34 1485.81 1022.438 6.45 6.43 10.764 3.31194 4.63024 29.34 1485.82 1022.440 6.75 6.73 10.765 3.30915 4.62624 29.31 1485.79 1022.419 7.05 7.03 10.765 3.31298 4.63163 29.35 1485.84 1022.450 7.35 7.33 10.765 3.31358 4.63245 29.35 1485.85 1022.456 7.65 7.63 10.764 3.31472 4.63416 29.37 1485.87 1022.467 7.95 7.93 10.764 3.31567 4.63549 29.37 1485.88 1022.475 8.25 8.23 10.766 3.31408 4.63301 29.36 1485.88 1022.463 8.55 8.53 10.766 3.31387 4.63269 29.35 1485.88 1022.462 8.85 8.83 10.768 3.31276 4.63095 29.34 1485.87 1022.454 9.15 9.12 10.768 3.31397 4.63252 29.35 1485.90 1022.464 9.45 9.42 10.767 3.31611 4.63570 29.38 1485.92 1022.482 9.75 9.72 10.767 3.31676 4.63668 29.38 1485.93 1022.489 10.05 10.02 10.767 3.31779 4.63804 29.39 1485.95 1022.498 10.35 10.32 10.767 3.31790 4.63822 29.39 1485.96 1022.500 10.65 10.62 10.768 3.31797 4.63824 29.39 1485.96 1022.501 10.95 10.92 10.767 3.31650 4.63626 29.38 1485.95 1022.492 11.25 11.22 10.767 3.31710 4.63705 29.38 1485.96 1022.497 11.55 11.52 10.768 3.31863 4.63912 29.40 1485.99 1022.510 11.85 11.82 10.768 3.31971 4.64058 29.41 1486.01 1022.519 12.15 12.12 10.768 3.31995 4.64101 29.41 1486.01 1022.523 12.45 12.41 10.768 3.32149 4.64314 29.43 1486.03 1022.536 12.75 12.71 10.769 3.32189 4.64355 29.43 1486.05 1022.539 13.05 13.01 10.769 3.32203 4.64373 29.43 1486.05 1022.541 13.35 13.31 10.768 3.32219 4.64405 29.43 1486.06 1022.544 13.65 13.61 10.768 3.32236 4.64428 29.43 1486.07 1022.547 13.95 13.91 10.769 3.32279 4.64476 29.44 1486.08 1022.551 14.25 14.21 10.770 3.32231 4.64395 29.43 1486.08 1022.547 14.55 14.51 10.771 3.32431 4.64661 29.45 1486.11 1022.563 14.85 14.81 10.773 3.32556 4.64814 29.46 1486.14 1022.573 15.15 15.11 10.774 3.33054 4.65498 29.51 1486.20 1022.611 15.45 15.40 10.772 3.33706 4.66441 29.58 1486.28 1022.664 15.75 15.70 10.770 3.33734 4.66494 29.58 1486.28 1022.668 16.05 16.00 10.768 3.33793 4.66602 29.59 1486.29 1022.676 16.35 16.30 10.768 3.33916 4.66778 29.60 1486.31 1022.687 16.65 16.60 10.766 3.33987 4.66903 29.61 1486.32 1022.695 16.95 16.90 10.764 3.33978 4.66925 29.61 1486.31 1022.698 17.25 17.20 10.761 3.34055 4.67064 29.62 1486.32 1022.707 17.55 17.50 10.759 3.34123 4.67186 29.63 1486.33 1022.715 17.85 17.80 10.757 3.34227 4.67352 29.64 1486.34 1022.725 18.15 18.10 10.756 3.34355 4.67552 29.65 1486.36 1022.738 18.45 18.40 10.755 3.34566 4.67864 29.67 1486.38 1022.756 18.75 18.69 10.754 3.34701 4.68055 29.69 1486.40 1022.768 19.05 18.99 10.754 3.34859 4.68286 29.70 1486.42 1022.782 19.35 19.29 10.751 3.35073 4.68614 29.72 1486.45 1022.801 19.65 19.59 10.746 3.35320 4.69027 29.75 1486.47 1022.825 19.95 19.89 10.737 3.36660 4.71025 29.89 1486.61 1022.937 20.25 20.19 10.731 3.37353 4.72080 29.97 1486.68 1022.996 20.55 20.49 10.725 3.37544 4.72421 29.99 1486.69 1023.017 20.85 20.79 10.720 3.37732 4.72748 30.01 1486.71 1023.036 21.15 21.09 10.716 3.38079 4.73285 30.05 1486.74 1023.067 21.45 21.38 10.713 3.38557 4.73996 30.10 1486.80 1023.108 21.75 21.68 10.708 3.38584 4.74102 30.10 1486.79 1023.115 22.05 21.98 10.706 3.38775 4.74390 30.12 1486.81 1023.132 22.35 22.28 10.704 3.38576 4.74139 30.11 1486.79 1023.120 22.65 22.58 10.704 3.38531 4.74080 30.10 1486.79 1023.118 22.95 22.88 10.705 3.38642 4.74222 30.11 1486.81 1023.127 23.25 23.18 10.703 3.39430 4.75355 30.19 1486.90 1023.190 23.55 23.48 10.690 3.39887 4.76163 30.25 1486.93 1023.237 23.72 23.65 10.690 3.39863 4.76132 30.24 1486.93 1023.236