*2026/01/16 09:57:54.25 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/03 21:31:06.000 END TIME : UTC 2024/09/03 21:31:24.000 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 27.24 2 Depth metres 0.15 27.14 3 Temperature 'deg C (ITS90)' 9.871 16.902 4 Conductivity S/m 3.49283 3.57404 5 Conductance:Specific S/m 4.16903 5.01089 6 Salinity PSS-78 26.53 31.9 7 Speed:Sound m/s 1486.04 1502.86 8 Density kg/m^3 1019.053 1024.68 $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 : 228 LATITUDE : 49 3.10620 N ! (deg min) LONGITUDE : 124 50.42810 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240903_213106 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 91 91 MERGEHDR 1.3 2026/01/16 09:54:03 91 91 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 91 91 CALIB 12.1 2026/01/16 09:56:54 91 91 CLEAN 5.3 2026/01/16 09:57:54 91 91 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 16.902 3.49384 4.16907 26.54 1502.86 1019.053 0.45 0.45 16.892 3.49402 4.17025 26.54 1502.84 1019.063 0.75 0.75 16.890 3.49283 4.16903 26.53 1502.83 1019.058 1.05 1.05 16.886 3.49459 4.17152 26.55 1502.84 1019.073 1.35 1.35 16.873 3.49787 4.17679 26.59 1502.85 1019.105 1.65 1.65 16.841 3.50333 4.18646 26.65 1502.83 1019.165 1.95 1.95 16.751 3.50627 4.19900 26.74 1502.66 1019.251 2.25 2.25 16.641 3.51129 4.21611 26.85 1502.45 1019.365 2.55 2.55 16.608 3.51256 4.22106 26.89 1502.39 1019.399 2.85 2.85 16.537 3.51575 4.23203 26.96 1502.26 1019.472 3.15 3.15 16.501 3.51585 4.23582 26.99 1502.18 1019.501 3.45 3.45 16.475 3.51503 4.23758 27.00 1502.12 1019.516 3.75 3.75 16.448 3.51348 4.23838 27.00 1502.05 1019.527 4.05 4.05 16.439 3.51323 4.23900 27.01 1502.03 1019.533 4.35 4.35 16.426 3.51256 4.23959 27.01 1501.99 1019.540 4.65 4.65 16.399 3.51254 4.24235 27.03 1501.93 1019.561 4.95 4.95 16.364 3.51267 4.24602 27.05 1501.86 1019.588 5.25 5.25 16.238 3.51332 4.25980 27.14 1501.57 1019.687 5.55 5.55 16.115 3.51374 4.27307 27.23 1501.29 1019.782 5.85 5.85 16.021 3.51441 4.28372 27.30 1501.08 1019.858 6.15 6.15 15.886 3.51482 4.29834 27.40 1500.77 1019.962 6.45 6.45 15.509 3.52289 4.34829 27.73 1499.96 1020.298 6.75 6.75 15.216 3.53713 4.39764 28.06 1499.42 1020.616 7.05 7.05 14.205 3.56206 4.54289 29.02 1497.26 1021.566 7.35 7.35 13.417 3.57168 4.64853 29.71 1495.46 1022.255 7.65 7.65 13.138 3.57251 4.68361 29.94 1494.80 1022.485 7.95 7.95 12.646 3.57404 4.74694 30.35 1493.62 1022.895 8.25 8.25 11.868 3.57228 4.84466 30.97 1491.69 1023.520 8.55 8.54 11.465 3.55799 4.87858 31.16 1490.53 1023.748 8.85 8.84 11.222 3.55084 4.90152 31.30 1489.84 1023.898 9.15 9.14 11.127 3.54694 4.90899 31.34 1489.56 1023.949 9.45 9.44 11.001 3.54529 4.92394 31.43 1489.23 1024.044 9.75 9.74 10.916 3.54618 4.93671 31.52 1489.04 1024.123 10.05 10.04 10.866 3.54543 4.94260 31.55 1488.91 1024.161 10.35 10.34 10.820 3.54307 4.94571 31.57 1488.77 1024.183 10.65 10.63 10.791 3.54206 4.94825 31.58 1488.69 1024.200 10.95 10.93 10.770 3.54020 4.94856 31.58 1488.62 1024.205 11.25 11.23 10.736 3.53923 4.95197 31.60 1488.52 1024.228 11.55 11.53 10.726 3.53845 4.95225 31.60 1488.49 1024.231 11.85 11.83 10.707 3.53728 4.95318 31.61 1488.44 1024.239 12.15 12.13 10.676 3.53701 4.95707 31.63 1488.36 1024.265 12.45 12.43 10.649 3.53562 4.95889 31.64 1488.28 1024.278 12.75 12.72 10.637 3.53515 4.95993 31.65 1488.25 1024.286 13.05 13.02 10.633 3.53597 4.96167 31.66 1488.25 1024.297 13.35 13.32 10.638 3.53632 4.96150 31.66 1488.28 1024.297 13.65 13.62 10.634 3.53578 4.96122 31.65 1488.27 1024.297 13.95 13.92 10.623 3.53550 4.96233 31.66 1488.24 1024.305 14.25 14.22 10.613 3.53575 4.96408 31.67 1488.22 1024.317 14.55 14.52 10.611 3.53570 4.96432 31.67 1488.22 1024.320 14.85 14.81 10.606 3.53671 4.96648 31.69 1488.22 1024.333 15.15 15.11 10.594 3.53602 4.96723 31.69 1488.19 1024.340 15.45 15.41 10.589 3.53582 4.96757 31.69 1488.18 1024.343 15.75 15.71 10.587 3.53567 4.96761 31.69 1488.18 1024.345 16.05 16.01 10.575 3.53366 4.96646 31.68 1488.13 1024.341 16.35 16.31 10.552 3.53345 4.96937 31.70 1488.07 1024.360 16.65 16.61 10.537 3.53199 4.96947 31.70 1488.02 1024.363 16.95 16.90 10.521 3.53195 4.97161 31.71 1487.99 1024.377 17.25 17.20 10.506 3.53092 4.97232 31.72 1487.94 1024.383 17.55 17.50 10.488 3.52976 4.97322 31.72 1487.89 1024.391 17.85 17.80 10.463 3.52876 4.97525 31.73 1487.82 1024.405 18.15 18.10 10.452 3.52899 4.97712 31.74 1487.80 1024.417 18.45 18.40 10.438 3.52631 4.97526 31.73 1487.73 1024.409 18.75 18.70 10.422 3.52671 4.97811 31.75 1487.70 1024.428 19.05 18.99 10.423 3.52643 4.97761 31.74 1487.71 1024.426 19.35 19.29 10.409 3.52593 4.97881 31.75 1487.67 1024.435 19.65 19.59 10.403 3.52599 4.97975 31.76 1487.66 1024.442 19.95 19.89 10.402 3.52621 4.98024 31.76 1487.66 1024.446 20.25 20.19 10.401 3.52540 4.97926 31.75 1487.66 1024.442 20.55 20.49 10.389 3.52455 4.97969 31.75 1487.62 1024.446 20.85 20.79 10.380 3.52402 4.98028 31.76 1487.60 1024.452 21.15 21.08 10.357 3.52324 4.98240 31.77 1487.53 1024.466 21.45 21.38 10.336 3.52216 4.98381 31.77 1487.47 1024.477 21.75 21.68 10.319 3.52116 4.98474 31.78 1487.42 1024.484 22.05 21.98 10.297 3.51891 4.98471 31.78 1487.34 1024.487 22.35 22.28 10.268 3.51725 4.98648 31.78 1487.25 1024.500 22.65 22.58 10.226 3.51475 4.98889 31.80 1487.12 1024.517 22.95 22.87 10.188 3.51343 4.99238 31.82 1487.01 1024.541 23.25 23.17 10.160 3.51113 4.99305 31.82 1486.92 1024.547 23.55 23.47 10.152 3.51014 4.99273 31.81 1486.89 1024.547 23.85 23.77 10.110 3.50864 4.99669 31.84 1486.77 1024.573 24.15 24.07 10.060 3.50489 4.99845 31.84 1486.60 1024.588 24.45 24.37 10.033 3.50102 4.99673 31.83 1486.49 1024.581 24.75 24.67 10.005 3.50004 4.99934 31.84 1486.41 1024.599 25.05 24.96 9.987 3.50016 5.00212 31.86 1486.37 1024.616 25.35 25.26 9.982 3.49900 5.00122 31.85 1486.35 1024.613 25.65 25.56 9.963 3.49696 5.00093 31.85 1486.28 1024.614 25.95 25.86 9.939 3.49565 5.00257 31.86 1486.21 1024.626 26.25 26.16 9.910 3.49533 5.00625 31.88 1486.14 1024.649 26.55 26.46 9.890 3.49504 5.00869 31.89 1486.09 1024.665 26.85 26.75 9.871 3.49466 5.01089 31.90 1486.04 1024.680 27.24 27.14 9.890 3.49431 5.00764 31.88 1486.09 1024.662