*2026/01/16 09:57:56.84 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 23:45:32.000 END TIME : UTC 2024/10/17 23:45:49.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 86 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.62 2 Depth metres 0.15 25.49 3 Temperature 'deg C (ITS90)' 10.567 11.798 4 Conductivity S/m 3.33845 3.55817 5 Conductance:Specific S/m 4.53621 4.99321 6 Salinity PSS-78 28.78 31.87 7 Speed:Sound m/s 1488.45 1490.54 8 Density kg/m^3 1021.803 1024.529 $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 : 294 LATITUDE : 48 53.05060 N ! (deg min) LONGITUDE : 125 7.21860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_234532 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 86 86 MERGEHDR 1.3 2026/01/16 09:54:10 86 86 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 86 86 CALIB 12.1 2026/01/16 09:56:58 86 86 CLEAN 5.3 2026/01/16 09:57:56 86 86 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 11.798 3.33845 4.53621 28.78 1488.70 1021.803 0.45 0.45 11.735 3.51201 4.78017 30.50 1490.54 1023.146 0.75 0.75 11.634 3.52500 4.81110 30.71 1490.44 1023.327 1.05 1.05 11.505 3.53328 4.83949 30.89 1490.22 1023.497 1.35 1.35 11.397 3.53827 4.86069 31.03 1490.01 1023.626 1.65 1.64 11.382 3.53490 4.85801 31.01 1489.94 1023.613 1.95 1.94 11.355 3.53582 4.86293 31.04 1489.89 1023.644 2.25 2.24 11.280 3.53941 4.87788 31.14 1489.75 1023.735 2.55 2.54 11.263 3.54057 4.88185 31.17 1489.72 1023.760 2.85 2.84 11.249 3.54163 4.88514 31.19 1489.71 1023.780 3.15 3.14 11.233 3.54165 4.88729 31.20 1489.67 1023.795 3.45 3.44 11.223 3.54248 4.88987 31.22 1489.66 1023.811 3.75 3.74 11.210 3.54420 4.89400 31.25 1489.65 1023.836 4.05 4.03 11.197 3.54481 4.89651 31.26 1489.63 1023.853 4.35 4.33 11.183 3.54501 4.89867 31.28 1489.61 1023.867 4.65 4.63 11.170 3.54523 4.90074 31.29 1489.58 1023.881 4.95 4.93 11.161 3.54569 4.90269 31.30 1489.57 1023.894 5.25 5.23 11.142 3.54528 4.90466 31.32 1489.52 1023.907 5.55 5.53 11.128 3.54685 4.90877 31.34 1489.51 1023.933 5.85 5.83 11.107 3.54837 4.91366 31.38 1489.48 1023.963 6.15 6.12 11.072 3.54957 4.92010 31.42 1489.41 1024.003 6.45 6.42 11.024 3.55103 4.92871 31.47 1489.31 1024.055 6.75 6.72 10.964 3.55662 4.94471 31.58 1489.23 1024.150 7.05 7.02 10.935 3.55811 4.95070 31.62 1489.18 1024.187 7.35 7.32 10.891 3.55817 4.95697 31.66 1489.08 1024.226 7.65 7.62 10.854 3.55808 4.96194 31.69 1488.99 1024.258 7.95 7.92 10.838 3.55788 4.96380 31.70 1488.95 1024.271 8.25 8.21 10.826 3.55771 4.96522 31.71 1488.92 1024.281 8.55 8.51 10.819 3.55803 4.96663 31.72 1488.92 1024.291 8.85 8.81 10.814 3.55748 4.96663 31.72 1488.90 1024.292 9.15 9.11 10.810 3.55763 4.96737 31.72 1488.90 1024.298 9.45 9.41 10.809 3.55814 4.96826 31.73 1488.90 1024.304 9.75 9.71 10.804 3.55808 4.96889 31.73 1488.90 1024.309 10.05 10.01 10.795 3.55778 4.96962 31.73 1488.88 1024.315 10.35 10.30 10.789 3.55782 4.97050 31.74 1488.87 1024.322 10.65 10.60 10.787 3.55767 4.97056 31.74 1488.86 1024.324 10.95 10.90 10.784 3.55717 4.97035 31.74 1488.86 1024.324 11.25 11.20 10.778 3.55773 4.97196 31.75 1488.85 1024.335 11.55 11.50 10.772 3.55744 4.97234 31.75 1488.84 1024.339 11.85 11.80 10.769 3.55774 4.97316 31.76 1488.84 1024.345 12.15 12.10 10.769 3.55765 4.97313 31.76 1488.84 1024.346 12.45 12.39 10.764 3.55757 4.97367 31.76 1488.83 1024.350 12.75 12.69 10.755 3.55698 4.97404 31.76 1488.81 1024.354 13.05 12.99 10.750 3.55745 4.97547 31.77 1488.81 1024.364 13.35 13.29 10.746 3.55640 4.97459 31.76 1488.79 1024.361 13.65 13.59 10.740 3.55559 4.97431 31.76 1488.77 1024.361 13.95 13.89 10.730 3.55587 4.97608 31.77 1488.75 1024.373 14.25 14.19 10.723 3.55568 4.97675 31.77 1488.74 1024.378 14.55 14.48 10.719 3.55537 4.97688 31.78 1488.73 1024.380 14.85 14.78 10.715 3.55456 4.97624 31.77 1488.71 1024.379 15.15 15.08 10.705 3.55459 4.97773 31.78 1488.69 1024.389 15.45 15.38 10.699 3.55420 4.97805 31.78 1488.68 1024.392 15.75 15.68 10.696 3.55437 4.97871 31.78 1488.68 1024.398 16.05 15.98 10.691 3.55441 4.97939 31.79 1488.67 1024.403 16.35 16.28 10.687 3.55398 4.97942 31.79 1488.66 1024.405 16.65 16.57 10.680 3.55368 4.97991 31.79 1488.64 1024.409 16.95 16.87 10.671 3.55341 4.98076 31.80 1488.62 1024.416 17.25 17.17 10.663 3.55322 4.98164 31.80 1488.61 1024.422 17.55 17.47 10.658 3.55318 4.98234 31.81 1488.60 1024.428 17.85 17.77 10.649 3.55282 4.98307 31.81 1488.57 1024.434 18.15 18.07 10.639 3.55151 4.98255 31.80 1488.54 1024.433 18.45 18.37 10.630 3.55151 4.98387 31.81 1488.52 1024.443 18.75 18.66 10.621 3.55184 4.98562 31.82 1488.51 1024.454 19.05 18.96 10.615 3.55102 4.98533 31.82 1488.49 1024.454 19.35 19.26 10.607 3.55111 4.98648 31.83 1488.47 1024.462 19.65 19.56 10.599 3.55169 4.98843 31.84 1488.46 1024.475 19.95 19.86 10.595 3.55126 4.98836 31.84 1488.45 1024.476 20.25 20.16 10.594 3.55166 4.98918 31.85 1488.46 1024.482 20.55 20.46 10.592 3.55157 4.98925 31.85 1488.46 1024.484 20.85 20.75 10.589 3.55131 4.98940 31.85 1488.45 1024.486 21.15 21.05 10.587 3.55188 4.99041 31.85 1488.46 1024.493 21.45 21.35 10.582 3.55161 4.99078 31.85 1488.45 1024.497 21.75 21.65 10.579 3.55157 4.99105 31.86 1488.45 1024.500 22.05 21.95 10.578 3.55172 4.99151 31.86 1488.45 1024.504 22.35 22.25 10.577 3.55166 4.99149 31.86 1488.45 1024.505 22.65 22.54 10.578 3.55173 4.99142 31.86 1488.46 1024.506 22.95 22.84 10.580 3.55165 4.99114 31.86 1488.47 1024.505 23.25 23.14 10.580 3.55177 4.99125 31.86 1488.47 1024.507 23.55 23.44 10.579 3.55153 4.99111 31.86 1488.47 1024.508 23.85 23.74 10.579 3.55200 4.99169 31.86 1488.48 1024.512 24.15 24.04 10.578 3.55174 4.99143 31.86 1488.48 1024.512 24.45 24.34 10.578 3.55167 4.99143 31.86 1488.49 1024.513 24.75 24.63 10.577 3.55230 4.99241 31.86 1488.50 1024.520 25.05 24.93 10.577 3.55220 4.99223 31.86 1488.50 1024.520 25.35 25.23 10.570 3.55180 4.99270 31.86 1488.48 1024.525 25.62 25.49 10.567 3.55188 4.99321 31.87 1488.48 1024.529