*2026/01/16 09:47:04.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/30 23:18:20.000 END TIME : UTC 2023/11/30 23:18:38.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 91 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.25 2 Depth metres 0.15 27.17 3 Temperature 'deg C (ITS90)' 11.462 12.093 4 Conductivity S/m 3.24743 3.49631 5 Conductance:Specific S/m 4.45079 4.71302 6 Salinity PSS-78 28.16 30.05 7 Speed:Sound m/s 1486.8 1491.68 8 Density kg/m^3 1021.37 1022.852 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 89 LATITUDE : 49 18.52710 N ! (deg min) LONGITUDE : 125 58.43620 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231130_231820 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 91 91 MERGEHDR 1.3 2026/01/15 13:41:48 91 91 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 91 91 CALIB 12.1 2026/01/16 09:46:08 91 91 CLEAN 5.3 2026/01/16 09:47:04 91 91 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:08 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 09:47:01 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 11.487 3.24788 4.45079 28.16 1486.86 1021.370 0.45 0.45 11.462 3.24743 4.45322 28.17 1486.80 1021.387 0.75 0.75 11.477 3.25690 4.46428 28.25 1486.95 1021.447 1.05 1.05 11.499 3.26226 4.46891 28.28 1487.07 1021.471 1.35 1.35 11.532 3.27075 4.47653 28.34 1487.26 1021.511 1.65 1.65 11.542 3.28041 4.48857 28.42 1487.40 1021.577 1.95 1.95 11.548 3.28580 4.49512 28.47 1487.49 1021.613 2.25 2.25 11.559 3.29728 4.50956 28.57 1487.65 1021.692 2.55 2.54 11.610 3.30660 4.51597 28.62 1487.89 1021.723 2.85 2.84 11.654 3.30312 4.50584 28.56 1487.97 1021.664 3.15 3.14 11.606 3.29996 4.50744 28.56 1487.82 1021.679 3.45 3.44 11.546 3.29580 4.50906 28.57 1487.62 1021.695 3.75 3.74 11.534 3.29777 4.51328 28.60 1487.62 1021.721 4.05 4.04 11.536 3.30518 4.52319 28.67 1487.71 1021.776 4.35 4.34 11.555 3.30695 4.52329 28.67 1487.78 1021.776 4.65 4.64 11.542 3.30721 4.52518 28.68 1487.76 1021.789 4.95 4.94 11.582 3.31264 4.52767 28.70 1487.93 1021.799 5.25 5.24 11.599 3.31484 4.52854 28.71 1488.00 1021.804 5.55 5.54 11.656 3.32858 4.54035 28.80 1488.31 1021.864 5.85 5.84 11.744 3.34364 4.54993 28.87 1488.72 1021.908 6.15 6.14 11.810 3.36196 4.56659 29.00 1489.10 1021.993 6.45 6.44 11.832 3.37241 4.57816 29.08 1489.28 1022.055 6.75 6.73 11.810 3.37347 4.58223 29.11 1489.24 1022.081 7.05 7.03 11.801 3.37284 4.58257 29.11 1489.21 1022.085 7.35 7.33 11.806 3.37398 4.58343 29.11 1489.25 1022.091 7.65 7.63 11.803 3.37389 4.58372 29.12 1489.24 1022.094 7.95 7.93 11.808 3.37547 4.58526 29.13 1489.28 1022.103 8.25 8.23 11.810 3.37617 4.58591 29.13 1489.30 1022.107 8.55 8.53 11.803 3.37778 4.58904 29.15 1489.30 1022.127 8.85 8.83 11.803 3.38179 4.59442 29.19 1489.35 1022.157 9.15 9.13 11.803 3.38287 4.59591 29.20 1489.37 1022.167 9.45 9.43 11.798 3.38451 4.59873 29.22 1489.38 1022.184 9.75 9.73 11.796 3.38456 4.59911 29.22 1489.38 1022.187 10.05 10.03 11.802 3.38692 4.60156 29.24 1489.43 1022.201 10.35 10.32 11.817 3.38985 4.60370 29.26 1489.50 1022.213 10.65 10.62 11.827 3.39309 4.60681 29.28 1489.57 1022.230 10.95 10.92 11.806 3.39087 4.60634 29.27 1489.50 1022.231 11.25 11.22 11.786 3.38886 4.60621 29.27 1489.43 1022.233 11.55 11.52 11.773 3.38774 4.60626 29.27 1489.39 1022.236 11.85 11.82 11.762 3.38663 4.60616 29.27 1489.35 1022.238 12.15 12.12 11.752 3.38677 4.60758 29.28 1489.33 1022.248 12.45 12.42 11.751 3.38884 4.61050 29.30 1489.36 1022.266 12.75 12.72 11.742 3.38878 4.61165 29.30 1489.34 1022.274 13.05 13.02 11.777 3.39385 4.61404 29.32 1489.49 1022.285 13.35 13.32 11.841 3.40072 4.61535 29.34 1489.74 1022.286 13.65 13.62 11.857 3.40331 4.61692 29.35 1489.81 1022.295 13.95 13.91 11.869 3.40441 4.61692 29.35 1489.86 1022.295 14.25 14.21 11.873 3.40496 4.61715 29.35 1489.88 1022.297 14.55 14.51 11.870 3.40591 4.61880 29.37 1489.89 1022.307 14.85 14.81 11.869 3.40657 4.61988 29.37 1489.90 1022.315 15.15 15.11 11.879 3.41027 4.62360 29.40 1489.97 1022.335 15.45 15.41 11.895 3.41331 4.62571 29.42 1490.05 1022.346 15.75 15.71 11.905 3.41664 4.62896 29.44 1490.12 1022.364 16.05 16.01 11.906 3.42101 4.63474 29.48 1490.18 1022.397 16.35 16.31 11.916 3.43033 4.64618 29.56 1490.31 1022.460 16.65 16.61 11.949 3.43742 4.65163 29.60 1490.48 1022.487 16.95 16.91 11.936 3.44291 4.66059 29.67 1490.52 1022.539 17.25 17.20 11.931 3.44826 4.66853 29.72 1490.57 1022.584 17.55 17.50 11.935 3.44887 4.66884 29.72 1490.59 1022.587 17.85 17.80 11.925 3.44799 4.66889 29.72 1490.56 1022.589 18.15 18.10 11.917 3.44730 4.66897 29.72 1490.54 1022.592 18.45 18.40 11.916 3.44731 4.66918 29.72 1490.54 1022.595 18.75 18.70 11.922 3.44755 4.66872 29.72 1490.56 1022.593 19.05 19.00 11.916 3.44751 4.66935 29.73 1490.55 1022.598 19.35 19.30 11.922 3.44825 4.66959 29.73 1490.58 1022.600 19.65 19.60 11.922 3.44849 4.67000 29.73 1490.59 1022.603 19.95 19.90 11.925 3.44957 4.67102 29.74 1490.61 1022.610 20.25 20.20 11.931 3.45069 4.67183 29.74 1490.64 1022.615 20.55 20.49 11.931 3.45136 4.67276 29.75 1490.66 1022.621 20.85 20.79 11.937 3.45286 4.67395 29.76 1490.69 1022.628 21.15 21.09 11.931 3.45287 4.67471 29.76 1490.68 1022.635 21.45 21.39 11.943 3.45355 4.67418 29.76 1490.73 1022.632 21.75 21.69 11.946 3.45462 4.67520 29.77 1490.75 1022.638 22.05 21.99 11.954 3.45680 4.67722 29.78 1490.80 1022.650 22.35 22.29 11.959 3.45879 4.67921 29.80 1490.84 1022.661 22.65 22.59 11.960 3.45971 4.68031 29.81 1490.86 1022.669 22.95 22.89 11.972 3.46103 4.68064 29.81 1490.91 1022.670 23.25 23.19 11.973 3.46140 4.68094 29.81 1490.92 1022.673 23.55 23.48 11.978 3.46251 4.68183 29.82 1490.95 1022.679 23.85 23.78 11.983 3.46440 4.68379 29.83 1490.99 1022.690 24.15 24.08 11.986 3.46684 4.68670 29.85 1491.03 1022.707 24.45 24.38 11.988 3.46898 4.68935 29.87 1491.06 1022.723 24.75 24.68 12.001 3.47199 4.69174 29.89 1491.14 1022.736 25.05 24.98 12.000 3.47240 4.69247 29.89 1491.14 1022.741 25.35 25.28 12.010 3.47521 4.69501 29.91 1491.20 1022.755 25.65 25.58 12.033 3.48050 4.69915 29.94 1491.33 1022.776 25.95 25.88 12.061 3.48758 4.70515 29.99 1491.48 1022.808 26.25 26.18 12.080 3.49289 4.70988 30.02 1491.60 1022.833 26.55 26.47 12.089 3.49440 4.71078 30.03 1491.64 1022.838 26.85 26.77 12.086 3.49572 4.71302 30.05 1491.65 1022.852 27.25 27.17 12.093 3.49631 4.71295 30.05 1491.68 1022.852