*2026/01/16 09:57:50.22 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/20 21:20:25.000 END TIME : UTC 2024/05/20 21:20:50.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.6 2 Depth metres 0.15 37.48 3 Temperature 'deg C (ITS90)' 9.896 16.643 4 Conductivity S/m 1.19934 3.50954 5 Conductance:Specific S/m 1.44003 5.02705 6 Salinity PSS-78 8.31 32.02 7 Speed:Sound m/s 1481.24 1493.26 8 Density kg/m^3 1005.197 1024.81 $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 : 106 LATITUDE : 49 7.02200 N ! (deg min) LONGITUDE : 124 49.25340 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240520_212025 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:58 126 126 MERGEHDR 1.3 2026/01/16 09:53:51 126 126 HDREDIT2 3.2 2026/01/16 09:55:04 ? ? REMOVECH 8.2 2026/01/16 09:56:16 126 126 CALIB 12.1 2026/01/16 09:56:49 126 126 CLEAN 5.3 2026/01/16 09:57:50 126 126 $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 09:56:49 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 16.643 1.19934 1.44003 8.31 1481.24 1005.197 0.45 0.46 16.641 1.20381 1.44545 8.34 1481.27 1005.225 0.75 0.76 16.614 1.23309 1.48159 8.57 1481.45 1005.403 1.05 1.06 16.477 1.30027 1.56746 9.10 1481.62 1005.839 1.35 1.37 16.353 1.34374 1.62471 9.46 1481.63 1006.138 1.65 1.67 16.303 1.36179 1.64852 9.61 1481.64 1006.262 1.95 1.98 16.264 1.38647 1.68000 9.81 1481.74 1006.422 2.25 2.28 16.179 1.42244 1.72713 10.11 1481.81 1006.666 2.55 2.58 16.033 1.49735 1.82456 10.73 1482.04 1007.166 2.85 2.89 15.735 1.77045 2.17310 12.96 1483.64 1008.932 3.15 3.19 14.793 2.65981 3.34209 20.71 1489.46 1015.044 3.45 3.49 14.089 3.08268 3.94314 24.81 1491.89 1018.327 3.75 3.79 13.422 3.37259 4.38883 27.88 1493.26 1020.823 4.05 4.09 12.672 3.45801 4.58968 29.24 1492.32 1022.014 4.35 4.39 12.038 3.49359 4.71624 30.07 1491.15 1022.780 4.65 4.69 11.370 3.50758 4.82205 30.76 1489.64 1023.429 4.95 4.99 11.129 3.50726 4.85378 30.95 1489.03 1023.627 5.25 5.29 10.985 3.50775 4.87386 31.08 1488.68 1023.751 5.55 5.58 10.888 3.50789 4.88721 31.16 1488.44 1023.834 5.85 5.88 10.803 3.50740 4.89824 31.23 1488.23 1023.904 6.15 6.18 10.741 3.50739 4.90671 31.28 1488.07 1023.956 6.45 6.48 10.678 3.50601 4.91336 31.32 1487.91 1023.999 6.75 6.78 10.616 3.50624 4.92234 31.38 1487.75 1024.055 7.05 7.08 10.565 3.50667 4.93000 31.43 1487.63 1024.102 7.35 7.38 10.512 3.50628 4.93675 31.47 1487.50 1024.145 7.65 7.67 10.479 3.50652 4.94174 31.50 1487.42 1024.176 7.95 7.97 10.446 3.50642 4.94609 31.53 1487.35 1024.204 8.25 8.27 10.407 3.50715 4.95261 31.57 1487.26 1024.244 8.55 8.57 10.390 3.50721 4.95505 31.58 1487.22 1024.260 8.85 8.87 10.369 3.50642 4.95685 31.59 1487.17 1024.272 9.15 9.17 10.342 3.50659 4.96092 31.62 1487.10 1024.298 9.45 9.47 10.318 3.50651 4.96415 31.64 1487.05 1024.319 9.75 9.76 10.305 3.50605 4.96531 31.65 1487.01 1024.328 10.05 10.06 10.291 3.50632 4.96776 31.66 1486.98 1024.343 10.35 10.36 10.273 3.50631 4.97022 31.68 1486.94 1024.359 10.65 10.66 10.255 3.50584 4.97206 31.69 1486.90 1024.372 10.95 10.96 10.240 3.50602 4.97448 31.70 1486.87 1024.388 11.25 11.26 10.228 3.50662 4.97702 31.72 1486.85 1024.404 11.55 11.56 10.218 3.50672 4.97864 31.73 1486.83 1024.415 11.85 11.85 10.197 3.50587 4.98040 31.74 1486.77 1024.427 12.15 12.15 10.182 3.50575 4.98225 31.75 1486.73 1024.440 12.45 12.45 10.172 3.50629 4.98449 31.76 1486.72 1024.454 12.75 12.75 10.171 3.50631 4.98471 31.76 1486.72 1024.457 13.05 13.05 10.164 3.50613 4.98542 31.77 1486.71 1024.462 13.35 13.35 10.161 3.50651 4.98639 31.77 1486.71 1024.469 13.65 13.65 10.147 3.50623 4.98792 31.78 1486.67 1024.479 13.95 13.94 10.142 3.50586 4.98816 31.78 1486.66 1024.483 14.25 14.24 10.141 3.50653 4.98928 31.79 1486.67 1024.490 14.55 14.54 10.138 3.50661 4.98977 31.80 1486.67 1024.494 14.85 14.84 10.138 3.50620 4.98913 31.79 1486.67 1024.492 15.15 15.14 10.129 3.50644 4.99080 31.80 1486.65 1024.503 15.45 15.44 10.125 3.50611 4.99087 31.80 1486.65 1024.505 15.75 15.73 10.119 3.50650 4.99237 31.81 1486.64 1024.515 16.05 16.03 10.101 3.50646 4.99477 31.83 1486.60 1024.531 16.35 16.33 10.095 3.50698 4.99646 31.84 1486.59 1024.542 16.65 16.63 10.085 3.50719 4.99807 31.85 1486.58 1024.552 16.95 16.93 10.083 3.50750 4.99880 31.85 1486.58 1024.558 17.25 17.23 10.073 3.50737 5.00009 31.86 1486.56 1024.567 17.55 17.53 10.067 3.50778 5.00155 31.87 1486.55 1024.577 17.85 17.82 10.065 3.50736 5.00130 31.87 1486.54 1024.577 18.15 18.12 10.064 3.50826 5.00269 31.88 1486.56 1024.586 18.45 18.42 10.078 3.50787 5.00013 31.86 1486.59 1024.572 18.75 18.72 10.066 3.50649 4.99991 31.86 1486.55 1024.573 19.05 19.02 10.053 3.50688 5.00220 31.87 1486.53 1024.587 19.35 19.32 10.050 3.50718 5.00314 31.88 1486.53 1024.594 19.65 19.62 10.046 3.50730 5.00381 31.88 1486.53 1024.599 19.95 19.91 10.045 3.50671 5.00318 31.88 1486.52 1024.597 20.25 20.21 10.041 3.50672 5.00374 31.88 1486.52 1024.602 20.55 20.51 10.036 3.50656 5.00418 31.88 1486.51 1024.606 20.85 20.81 10.034 3.50686 5.00493 31.89 1486.51 1024.611 21.15 21.11 10.032 3.50716 5.00559 31.89 1486.51 1024.616 21.45 21.41 10.035 3.50703 5.00498 31.89 1486.52 1024.614 21.75 21.70 10.033 3.50707 5.00538 31.89 1486.52 1024.618 22.05 22.00 10.027 3.50669 5.00568 31.89 1486.51 1024.621 22.35 22.30 10.028 3.50739 5.00659 31.90 1486.52 1024.627 22.65 22.60 10.019 3.50688 5.00711 31.90 1486.50 1024.632 22.95 22.90 10.025 3.50648 5.00565 31.89 1486.52 1024.625 23.25 23.20 10.019 3.50697 5.00726 31.90 1486.51 1024.635 23.55 23.50 10.010 3.50665 5.00812 31.90 1486.49 1024.642 23.85 23.79 10.009 3.50639 5.00778 31.90 1486.49 1024.641 24.15 24.09 10.001 3.50666 5.00934 31.91 1486.48 1024.651 24.45 24.39 9.992 3.50647 5.01037 31.92 1486.45 1024.659 24.75 24.69 9.993 3.50687 5.01081 31.92 1486.47 1024.663 25.05 24.99 9.989 3.50648 5.01080 31.92 1486.46 1024.664 25.35 25.29 9.985 3.50627 5.01106 31.92 1486.45 1024.667 25.65 25.58 9.985 3.50707 5.01223 31.93 1486.46 1024.675 25.95 25.88 9.979 3.50671 5.01259 31.93 1486.45 1024.678 26.25 26.18 9.972 3.50683 5.01375 31.94 1486.44 1024.687 26.55 26.48 9.967 3.50705 5.01478 31.94 1486.43 1024.694 26.85 26.78 9.964 3.50690 5.01506 31.95 1486.43 1024.697 27.15 27.08 9.955 3.50644 5.01562 31.95 1486.40 1024.702 27.45 27.38 9.954 3.50693 5.01652 31.96 1486.41 1024.708 27.75 27.67 9.948 3.50641 5.01655 31.95 1486.40 1024.710 28.05 27.97 9.946 3.50732 5.01814 31.97 1486.41 1024.720 28.35 28.27 9.941 3.50718 5.01872 31.97 1486.40 1024.725 28.65 28.57 9.941 3.50684 5.01820 31.96 1486.40 1024.723 28.95 28.87 9.941 3.50807 5.01999 31.98 1486.42 1024.734 29.25 29.17 9.936 3.50837 5.02116 31.98 1486.41 1024.742 29.55 29.46 9.923 3.50736 5.02156 31.99 1486.37 1024.747 29.85 29.76 9.916 3.50657 5.02143 31.98 1486.35 1024.748 30.15 30.06 9.915 3.50770 5.02315 32.00 1486.36 1024.758 30.45 30.36 9.914 3.50721 5.02267 31.99 1486.36 1024.757 30.75 30.66 9.910 3.50765 5.02386 32.00 1486.36 1024.765 31.05 30.96 9.909 3.50783 5.02422 32.00 1486.36 1024.768 31.35 31.25 9.901 3.50766 5.02511 32.01 1486.35 1024.775 31.65 31.55 9.898 3.50759 5.02556 32.01 1486.34 1024.779 31.95 31.85 9.897 3.50737 5.02536 32.01 1486.34 1024.779 32.25 32.15 9.898 3.50748 5.02533 32.01 1486.35 1024.780 32.55 32.45 9.896 3.50754 5.02566 32.01 1486.35 1024.784 32.85 32.75 9.897 3.50784 5.02592 32.01 1486.36 1024.786 33.15 33.05 9.896 3.50722 5.02522 32.01 1486.36 1024.784 33.45 33.34 9.898 3.50802 5.02612 32.01 1486.38 1024.790 33.75 33.64 9.898 3.50864 5.02695 32.02 1486.39 1024.796 34.05 33.94 9.900 3.50875 5.02688 32.02 1486.40 1024.796 34.35 34.24 9.902 3.50729 5.02452 32.00 1486.39 1024.784 34.65 34.54 9.898 3.50754 5.02548 32.01 1486.39 1024.791 34.95 34.84 9.899 3.50830 5.02630 32.01 1486.41 1024.797 35.25 35.13 9.902 3.50818 5.02578 32.01 1486.42 1024.795 35.55 35.43 9.900 3.50838 5.02634 32.01 1486.42 1024.800 35.85 35.73 9.898 3.50713 5.02489 32.00 1486.40 1024.793 36.15 36.03 9.896 3.50851 5.02705 32.02 1486.42 1024.806 36.45 36.33 9.897 3.50816 5.02648 32.01 1486.42 1024.804 36.75 36.63 9.898 3.50808 5.02623 32.01 1486.43 1024.804 37.05 36.92 9.902 3.50901 5.02700 32.02 1486.46 1024.810 37.35 37.22 9.907 3.50954 5.02692 32.02 1486.48 1024.810 37.60 37.48 9.918 3.50932 5.02513 32.01 1486.51 1024.801