*2026/01/16 09:57:50.72 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/22 01:27:23.000 END TIME : UTC 2024/05/22 01:27:39.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.97 2 Depth metres 0.15 24.86 3 Temperature 'deg C (ITS90)' 9.498 13.814 4 Conductivity S/m 3.48893 3.60968 5 Conductance:Specific S/m 4.61988 5.05854 6 Salinity PSS-78 29.54 32.19 7 Speed:Sound m/s 1484.95 1496.47 8 Density kg/m^3 1022.015 1024.954 $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 : 125 LATITUDE : 48 51.49840 N ! (deg min) LONGITUDE : 125 6.79980 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240522_012723 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 84 84 MERGEHDR 1.3 2026/01/16 09:53:53 84 84 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 84 84 CALIB 12.1 2026/01/16 09:56:50 84 84 CLEAN 5.3 2026/01/16 09:57:50 84 84 $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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:50 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 13.803 3.58593 4.62062 29.55 1496.43 1022.019 0.45 0.45 13.814 3.58635 4.61988 29.54 1496.47 1022.015 0.75 0.75 13.811 3.58685 4.62087 29.55 1496.47 1022.022 1.05 1.05 13.806 3.58751 4.62241 29.56 1496.47 1022.033 1.35 1.35 13.793 3.58844 4.62508 29.58 1496.46 1022.050 1.65 1.65 13.789 3.58843 4.62557 29.58 1496.45 1022.055 1.95 1.94 13.781 3.58894 4.62716 29.59 1496.44 1022.066 2.25 2.24 13.756 3.58983 4.63127 29.62 1496.40 1022.093 2.55 2.54 13.745 3.59024 4.63314 29.63 1496.38 1022.106 2.85 2.84 13.737 3.59217 4.63662 29.66 1496.38 1022.128 3.15 3.14 13.720 3.59320 4.64003 29.68 1496.36 1022.150 3.45 3.44 13.697 3.59357 4.64324 29.70 1496.31 1022.172 3.75 3.74 13.651 3.59464 4.65016 29.75 1496.22 1022.217 4.05 4.04 13.590 3.59722 4.66081 29.82 1496.10 1022.285 4.35 4.34 13.508 3.60055 4.67501 29.91 1495.95 1022.375 4.65 4.64 13.331 3.60730 4.70551 30.11 1495.60 1022.568 4.95 4.94 13.173 3.60962 4.72794 30.26 1495.25 1022.713 5.25 5.24 13.053 3.60968 4.74299 30.36 1494.96 1022.812 5.55 5.53 12.899 3.60803 4.76001 30.46 1494.57 1022.926 5.85 5.83 12.754 3.60533 4.77482 30.56 1494.19 1023.026 6.15 6.13 12.636 3.60302 4.78660 30.63 1493.89 1023.106 6.45 6.43 12.553 3.59983 4.79300 30.67 1493.65 1023.152 6.75 6.73 12.498 3.59922 4.79922 30.70 1493.52 1023.194 7.05 7.03 12.387 3.59952 4.81385 30.80 1493.25 1023.289 7.35 7.33 12.225 3.59686 4.83125 30.91 1492.83 1023.404 7.65 7.63 11.900 3.58407 4.85652 31.05 1491.89 1023.579 7.95 7.93 11.653 3.58087 4.88487 31.23 1491.25 1023.762 8.25 8.22 11.515 3.57905 4.90074 31.33 1490.89 1023.864 8.55 8.52 11.410 3.57732 4.91258 31.40 1490.62 1023.941 8.85 8.82 11.297 3.57337 4.92245 31.46 1490.29 1024.007 9.15 9.12 11.188 3.56736 4.92889 31.49 1489.96 1024.053 9.45 9.42 11.029 3.55603 4.93492 31.52 1489.43 1024.102 9.75 9.72 10.907 3.54818 4.94077 31.54 1489.04 1024.146 10.05 10.02 10.807 3.54809 4.95444 31.63 1488.79 1024.231 10.35 10.31 10.701 3.54194 4.96063 31.66 1488.45 1024.275 10.65 10.61 10.438 3.52912 4.97925 31.76 1487.64 1024.399 10.95 10.91 10.297 3.52020 4.98652 31.79 1487.18 1024.450 11.25 11.21 10.192 3.51786 4.99804 31.86 1486.89 1024.522 11.55 11.51 10.106 3.51468 5.00585 31.91 1486.64 1024.572 11.85 11.81 10.024 3.50953 5.01011 31.93 1486.37 1024.603 12.15 12.11 9.978 3.50910 5.01616 31.96 1486.26 1024.640 12.45 12.40 9.942 3.50798 5.01975 31.98 1486.15 1024.663 12.75 12.70 9.928 3.50665 5.01982 31.98 1486.11 1024.666 13.05 13.00 9.914 3.50681 5.02206 32.00 1486.08 1024.681 13.35 13.30 9.900 3.50599 5.02287 32.00 1486.04 1024.687 13.65 13.60 9.874 3.50562 5.02613 32.02 1485.97 1024.708 13.95 13.90 9.846 3.50389 5.02766 32.03 1485.88 1024.719 14.25 14.20 9.831 3.50228 5.02759 32.02 1485.83 1024.721 14.55 14.49 9.810 3.50144 5.02932 32.03 1485.77 1024.733 14.85 14.79 9.789 3.49997 5.03022 32.04 1485.70 1024.741 15.15 15.09 9.764 3.49954 5.03333 32.05 1485.64 1024.761 15.45 15.39 9.748 3.49945 5.03540 32.07 1485.60 1024.774 15.75 15.69 9.737 3.49928 5.03689 32.08 1485.57 1024.784 16.05 15.99 9.734 3.49947 5.03748 32.08 1485.58 1024.789 16.35 16.28 9.737 3.49977 5.03751 32.08 1485.59 1024.790 16.65 16.58 9.736 3.49983 5.03777 32.08 1485.59 1024.793 16.95 16.88 9.734 3.50048 5.03901 32.09 1485.60 1024.801 17.25 17.18 9.730 3.49975 5.03849 32.09 1485.59 1024.800 17.55 17.48 9.730 3.49980 5.03866 32.09 1485.59 1024.802 17.85 17.78 9.723 3.49967 5.03938 32.09 1485.58 1024.808 18.15 18.07 9.713 3.49930 5.04028 32.10 1485.55 1024.814 18.45 18.37 9.696 3.49847 5.04164 32.10 1485.50 1024.824 18.75 18.67 9.666 3.49755 5.04460 32.12 1485.42 1024.844 19.05 18.97 9.609 3.49388 5.04768 32.13 1485.23 1024.865 19.35 19.27 9.576 3.49248 5.05045 32.15 1485.14 1024.883 19.65 19.57 9.552 3.49060 5.05124 32.15 1485.06 1024.890 19.95 19.87 9.539 3.49031 5.05272 32.16 1485.02 1024.900 20.25 20.16 9.526 3.49006 5.05424 32.17 1484.99 1024.911 20.55 20.46 9.515 3.49011 5.05593 32.18 1484.97 1024.922 20.85 20.76 9.508 3.48944 5.05601 32.18 1484.95 1024.924 21.15 21.06 9.506 3.48925 5.05596 32.18 1484.95 1024.925 21.45 21.36 9.510 3.48983 5.05622 32.18 1484.97 1024.928 21.75 21.66 9.511 3.48981 5.05615 32.18 1484.97 1024.928 22.05 21.95 9.512 3.49031 5.05668 32.18 1484.99 1024.932 22.35 22.25 9.512 3.48893 5.05463 32.17 1484.98 1024.922 22.65 22.55 9.504 3.49006 5.05744 32.19 1484.97 1024.940 22.95 22.85 9.506 3.48899 5.05566 32.17 1484.97 1024.931 23.25 23.15 9.503 3.48911 5.05618 32.18 1484.97 1024.935 23.55 23.45 9.499 3.48902 5.05673 32.18 1484.96 1024.940 23.85 23.74 9.498 3.49022 5.05854 32.19 1484.98 1024.951 24.15 24.04 9.501 3.49002 5.05789 32.19 1484.99 1024.949 24.45 24.34 9.502 3.49050 5.05838 32.19 1485.00 1024.953 24.75 24.64 9.503 3.49070 5.05849 32.19 1485.01 1024.954 24.97 24.86 9.506 3.49026 5.05742 32.19 1485.02 1024.949