*2026/01/16 09:57:56.57 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 17:04:01.000 END TIME : UTC 2024/10/17 17:04:18.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 89 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.68 2 Depth metres 0.15 26.56 3 Temperature 'deg C (ITS90)' 10.576 11.609 4 Conductivity S/m 3.47081 3.55832 5 Conductance:Specific S/m 4.74624 4.99756 6 Salinity PSS-78 30.24 31.9 7 Speed:Sound m/s 1488.55 1490.06 8 Density kg/m^3 1022.975 1024.557 $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 : 285 LATITUDE : 48 54.50850 N ! (deg min) LONGITUDE : 125 20.24820 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_170401 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 89 89 MERGEHDR 1.3 2026/01/16 09:54:10 89 89 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 89 89 CALIB 12.1 2026/01/16 09:56:57 89 89 CLEAN 5.3 2026/01/16 09:57:56 89 89 $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 09:56:57 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 11.564 3.47081 4.74624 30.24 1489.63 1022.975 0.45 0.45 11.609 3.48238 4.75611 30.32 1489.88 1023.026 0.75 0.75 11.585 3.49010 4.76978 30.41 1489.92 1023.105 1.05 1.05 11.564 3.49196 4.77512 30.44 1489.89 1023.138 1.35 1.35 11.549 3.49519 4.78146 30.49 1489.89 1023.175 1.65 1.64 11.543 3.49982 4.78864 30.54 1489.94 1023.216 1.95 1.94 11.539 3.50166 4.79171 30.56 1489.95 1023.235 2.25 2.24 11.527 3.50688 4.80036 30.62 1489.99 1023.285 2.55 2.54 11.518 3.51043 4.80650 30.66 1490.01 1023.321 2.85 2.84 11.503 3.51509 4.81475 30.72 1490.03 1023.369 3.15 3.14 11.487 3.51924 4.82266 30.77 1490.04 1023.415 3.45 3.44 11.477 3.51962 4.82449 30.78 1490.03 1023.428 3.75 3.74 11.466 3.52097 4.82769 30.81 1490.02 1023.447 4.05 4.03 11.453 3.52151 4.83019 30.82 1490.00 1023.464 4.35 4.33 11.441 3.52647 4.83862 30.88 1490.03 1023.513 4.65 4.63 11.421 3.53135 4.84794 30.94 1490.04 1023.567 4.95 4.93 11.391 3.53834 4.86155 31.04 1490.06 1023.646 5.25 5.23 11.367 3.54088 4.86830 31.08 1490.03 1023.687 5.55 5.53 11.351 3.54452 4.87535 31.13 1490.04 1023.728 5.85 5.83 11.337 3.54594 4.87923 31.16 1490.02 1023.752 6.15 6.13 11.317 3.54894 4.88601 31.20 1490.02 1023.793 6.45 6.42 11.288 3.55077 4.89250 31.25 1489.97 1023.832 6.75 6.72 11.276 3.55307 4.89732 31.28 1489.97 1023.861 7.05 7.02 11.260 3.55407 4.90075 31.30 1489.95 1023.883 7.35 7.32 11.249 3.55566 4.90444 31.33 1489.94 1023.905 7.65 7.62 11.249 3.55711 4.90656 31.34 1489.96 1023.918 7.95 7.92 11.227 3.55642 4.90856 31.35 1489.91 1023.933 8.25 8.22 11.205 3.55605 4.91098 31.37 1489.85 1023.949 8.55 8.52 11.191 3.55714 4.91438 31.39 1489.83 1023.971 8.85 8.81 11.183 3.55696 4.91528 31.39 1489.82 1023.978 9.15 9.11 11.176 3.55671 4.91585 31.40 1489.80 1023.983 9.45 9.41 11.168 3.55627 4.91626 31.40 1489.78 1023.987 9.75 9.71 11.162 3.55653 4.91753 31.41 1489.77 1023.996 10.05 10.01 11.151 3.55619 4.91858 31.41 1489.75 1024.004 10.35 10.31 11.141 3.55671 4.92058 31.43 1489.73 1024.017 10.65 10.61 11.138 3.55694 4.92131 31.43 1489.73 1024.022 10.95 10.90 11.134 3.55670 4.92153 31.43 1489.73 1024.025 11.25 11.20 11.129 3.55690 4.92245 31.44 1489.72 1024.032 11.55 11.50 11.122 3.55686 4.92341 31.44 1489.71 1024.039 11.85 11.80 11.119 3.55667 4.92352 31.44 1489.70 1024.041 12.15 12.10 11.104 3.55692 4.92587 31.46 1489.67 1024.057 12.45 12.40 11.076 3.55710 4.93003 31.49 1489.61 1024.083 12.75 12.70 11.047 3.55694 4.93373 31.51 1489.54 1024.108 13.05 13.00 11.022 3.55643 4.93649 31.52 1489.48 1024.126 13.35 13.29 11.003 3.55572 4.93808 31.53 1489.42 1024.138 13.65 13.59 10.993 3.55521 4.93878 31.54 1489.40 1024.144 13.95 13.89 10.980 3.55439 4.93941 31.54 1489.36 1024.150 14.25 14.19 10.962 3.55454 4.94206 31.56 1489.32 1024.167 14.55 14.49 10.932 3.55417 4.94572 31.58 1489.25 1024.191 14.85 14.79 10.901 3.55386 4.94958 31.60 1489.17 1024.216 15.15 15.09 10.881 3.55298 4.95113 31.61 1489.11 1024.228 15.45 15.38 10.851 3.55334 4.95564 31.64 1489.05 1024.256 15.75 15.68 10.835 3.55436 4.95932 31.66 1489.03 1024.279 16.05 15.98 10.836 3.55314 4.95753 31.65 1489.02 1024.271 16.35 16.28 10.830 3.55378 4.95929 31.66 1489.01 1024.282 16.65 16.58 10.824 3.55328 4.95930 31.66 1489.00 1024.284 16.95 16.88 10.819 3.55334 4.96011 31.67 1488.99 1024.290 17.25 17.18 10.814 3.55381 4.96152 31.68 1488.99 1024.299 17.55 17.47 10.810 3.55382 4.96204 31.68 1488.99 1024.304 17.85 17.77 10.807 3.55345 4.96192 31.68 1488.98 1024.305 18.15 18.07 10.805 3.55333 4.96208 31.68 1488.98 1024.307 18.45 18.37 10.806 3.55380 4.96260 31.68 1488.99 1024.311 18.75 18.67 10.802 3.55435 4.96393 31.69 1488.99 1024.320 19.05 18.97 10.795 3.55540 4.96631 31.71 1488.99 1024.335 19.35 19.27 10.789 3.55552 4.96731 31.71 1488.98 1024.342 19.65 19.56 10.792 3.55773 4.97002 31.73 1489.02 1024.358 19.95 19.86 10.782 3.55797 4.97170 31.74 1489.00 1024.370 20.25 20.16 10.757 3.55832 4.97571 31.77 1488.95 1024.395 20.55 20.46 10.744 3.55769 4.97666 31.77 1488.91 1024.403 20.85 20.76 10.726 3.55741 4.97873 31.79 1488.87 1024.417 21.15 21.06 10.707 3.55707 4.98092 31.80 1488.82 1024.432 21.45 21.36 10.691 3.55745 4.98373 31.82 1488.79 1024.450 21.75 21.65 10.672 3.55623 4.98468 31.82 1488.73 1024.458 22.05 21.95 10.647 3.55616 4.98808 31.84 1488.68 1024.479 22.35 22.25 10.627 3.55609 4.99069 31.86 1488.63 1024.497 22.65 22.55 10.615 3.55618 4.99257 31.87 1488.61 1024.509 22.95 22.85 10.609 3.55582 4.99287 31.87 1488.59 1024.513 23.25 23.15 10.609 3.55541 4.99236 31.87 1488.59 1024.511 23.55 23.44 10.601 3.55607 4.99432 31.88 1488.58 1024.524 23.85 23.74 10.597 3.55518 4.99360 31.88 1488.57 1024.521 24.15 24.04 10.594 3.55590 4.99514 31.89 1488.57 1024.531 24.45 24.34 10.585 3.55524 4.99539 31.89 1488.55 1024.535 24.75 24.64 10.588 3.55597 4.99598 31.89 1488.57 1024.539 25.05 24.94 10.586 3.55488 4.99472 31.88 1488.56 1024.533 25.35 25.24 10.581 3.55577 4.99677 31.90 1488.56 1024.547 25.65 25.53 10.578 3.55486 4.99585 31.89 1488.55 1024.543 25.95 25.83 10.576 3.55496 4.99625 31.89 1488.55 1024.547 26.25 26.13 10.578 3.55531 4.99654 31.89 1488.56 1024.549 26.68 26.56 10.576 3.55591 4.99756 31.90 1488.57 1024.557