*2026/01/16 10:37:54.36 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 19:21:31.000 END TIME : UTC 2025/05/27 19:21:55.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 124 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.98 2 Depth metres 0.15 36.84 3 Temperature 'deg C (ITS90)' 9.38 12.963 4 Conductivity S/m 2.82203 3.49981 5 Conductance:Specific S/m 3.72523 4.98941 6 Salinity PSS-78 23.23 31.68 7 Speed:Sound m/s 1484.14 1489.98 8 Density kg/m^3 1017.321 1024.631 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 155 LATITUDE : 49 40.93180 N ! (deg min) LONGITUDE : 126 36.79350 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_192131 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 124 124 MERGEHDR 1.3 2026/01/16 10:35:44 124 124 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 124 124 CALIB 12.1 2026/01/16 10:37:17 124 124 CLEAN 5.3 2026/01/16 10:37:54 124 124 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:42 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 10:37:42 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 12.877 2.82203 3.72523 23.23 1485.87 1017.321 0.45 0.45 12.892 2.83008 3.73435 23.30 1486.01 1017.368 0.75 0.75 12.904 2.84593 3.75411 23.43 1486.21 1017.473 1.05 1.05 12.911 2.85072 3.75970 23.47 1486.29 1017.503 1.35 1.35 12.935 2.87516 3.78958 23.68 1486.62 1017.660 1.65 1.65 12.959 2.87999 3.79351 23.71 1486.74 1017.679 1.95 1.95 12.963 2.90121 3.82114 23.90 1486.98 1017.826 2.25 2.25 12.941 2.93871 3.87277 24.25 1487.33 1018.105 2.55 2.55 12.939 2.98579 3.93494 24.68 1487.83 1018.438 2.85 2.85 12.925 3.03762 4.00474 25.16 1488.36 1018.814 3.15 3.15 12.891 3.06353 4.04255 25.42 1488.55 1019.022 3.45 3.45 12.834 3.08320 4.07466 25.64 1488.62 1019.203 3.75 3.75 12.728 3.13009 4.14819 26.15 1488.86 1019.612 4.05 4.05 12.576 3.21661 4.28012 27.05 1489.41 1020.343 4.35 4.35 12.423 3.27223 4.37190 27.68 1489.64 1020.859 4.65 4.65 12.301 3.29564 4.41758 27.99 1489.59 1021.122 4.95 4.95 12.113 3.36060 4.52758 28.75 1489.84 1021.743 5.25 5.25 11.904 3.41079 4.62114 29.39 1489.88 1022.277 5.55 5.55 11.773 3.44833 4.68869 29.85 1489.98 1022.662 5.85 5.85 11.637 3.47355 4.74048 30.21 1489.94 1022.961 6.15 6.15 11.515 3.48249 4.76855 30.39 1489.74 1023.128 6.45 6.45 11.405 3.48500 4.78647 30.51 1489.49 1023.238 6.75 6.75 11.337 3.47543 4.78217 30.47 1489.22 1023.222 7.05 7.05 11.290 3.46895 4.77954 30.45 1489.02 1023.213 7.35 7.34 11.221 3.47074 4.79108 30.52 1488.88 1023.284 7.65 7.64 11.145 3.47269 4.80382 30.60 1488.71 1023.362 7.95 7.94 11.101 3.47257 4.80951 30.64 1488.60 1023.399 8.25 8.24 11.065 3.47331 4.81530 30.67 1488.53 1023.435 8.55 8.54 11.018 3.47410 4.82269 30.72 1488.42 1023.481 8.85 8.84 10.973 3.47528 4.83043 30.77 1488.32 1023.529 9.15 9.14 10.954 3.47607 4.83399 30.79 1488.29 1023.551 9.45 9.44 10.931 3.47651 4.83776 30.82 1488.24 1023.575 9.75 9.73 10.894 3.47690 4.84325 30.85 1488.16 1023.610 10.05 10.03 10.869 3.47729 4.84718 30.88 1488.10 1023.635 10.35 10.33 10.858 3.47605 4.84691 30.87 1488.07 1023.635 10.65 10.63 10.835 3.47714 4.85155 30.90 1488.03 1023.664 10.95 10.93 10.819 3.47774 4.85458 30.92 1488.00 1023.683 11.25 11.23 10.792 3.47764 4.85806 30.94 1487.93 1023.706 11.55 11.53 10.785 3.47915 4.86119 30.96 1487.94 1023.725 11.85 11.83 10.780 3.47889 4.86156 30.97 1487.92 1023.729 12.15 12.12 10.781 3.48238 4.86631 31.00 1487.97 1023.756 12.45 12.42 10.764 3.48448 4.87151 31.04 1487.96 1023.787 12.75 12.72 10.749 3.48629 4.87611 31.07 1487.95 1023.815 13.05 13.02 10.736 3.48845 4.88080 31.10 1487.95 1023.843 13.35 13.32 10.716 3.48863 4.88388 31.12 1487.90 1023.863 13.65 13.62 10.703 3.48852 4.88545 31.13 1487.87 1023.874 13.95 13.92 10.696 3.48590 4.88282 31.11 1487.83 1023.861 14.25 14.22 10.677 3.48424 4.88297 31.11 1487.77 1023.865 14.55 14.51 10.665 3.48327 4.88337 31.11 1487.73 1023.869 14.85 14.81 10.672 3.48451 4.88416 31.11 1487.76 1023.875 15.15 15.11 10.667 3.48678 4.88801 31.14 1487.78 1023.897 15.45 15.41 10.647 3.49333 4.89984 31.22 1487.82 1023.965 15.75 15.71 10.634 3.49707 4.90691 31.27 1487.83 1024.006 16.05 16.01 10.629 3.49981 4.91151 31.30 1487.86 1024.034 16.35 16.31 10.622 3.49931 4.91174 31.30 1487.84 1024.036 16.65 16.60 10.606 3.49326 4.90548 31.26 1487.73 1024.005 16.95 16.90 10.583 3.48900 4.90263 31.23 1487.63 1023.992 17.25 17.20 10.544 3.48528 4.90281 31.23 1487.49 1023.997 17.55 17.50 10.501 3.48495 4.90829 31.26 1487.38 1024.032 17.85 17.80 10.467 3.47901 4.90463 31.23 1487.22 1024.016 18.15 18.10 10.431 3.47757 4.90753 31.25 1487.12 1024.036 18.45 18.40 10.405 3.47512 4.90762 31.25 1487.03 1024.039 18.75 18.69 10.386 3.47459 4.90954 31.26 1486.98 1024.052 19.05 18.99 10.365 3.47501 4.91313 31.28 1486.93 1024.075 19.35 19.29 10.341 3.47545 4.91702 31.30 1486.89 1024.099 19.65 19.59 10.310 3.47431 4.91968 31.32 1486.80 1024.118 19.95 19.89 10.284 3.47355 4.92226 31.33 1486.73 1024.135 20.25 20.19 10.265 3.47087 4.92118 31.32 1486.65 1024.131 20.55 20.49 10.238 3.46895 4.92215 31.33 1486.56 1024.140 20.85 20.79 10.209 3.46397 4.91921 31.30 1486.43 1024.127 21.15 21.08 10.178 3.46222 4.92094 31.31 1486.34 1024.140 21.45 21.38 10.137 3.46308 4.92791 31.35 1486.25 1024.182 21.75 21.68 10.117 3.46208 4.92929 31.36 1486.19 1024.193 22.05 21.98 10.101 3.46191 4.93142 31.37 1486.15 1024.207 22.35 22.28 10.080 3.46181 4.93411 31.39 1486.10 1024.224 22.65 22.58 10.056 3.46117 4.93667 31.41 1486.03 1024.241 22.95 22.88 10.027 3.45843 4.93680 31.40 1485.93 1024.245 23.25 23.17 10.003 3.45748 4.93882 31.41 1485.86 1024.259 23.55 23.47 9.987 3.45526 4.93791 31.41 1485.80 1024.256 23.85 23.77 9.967 3.45255 4.93685 31.40 1485.72 1024.253 24.15 24.07 9.937 3.44938 4.93659 31.39 1485.61 1024.255 24.45 24.37 9.913 3.44727 4.93694 31.39 1485.52 1024.259 24.75 24.67 9.887 3.44935 4.94366 31.43 1485.49 1024.299 25.05 24.97 9.863 3.44876 4.94621 31.45 1485.42 1024.316 25.35 25.26 9.836 3.44750 4.94817 31.46 1485.34 1024.330 25.65 25.56 9.816 3.44585 4.94858 31.46 1485.28 1024.335 25.95 25.86 9.803 3.44455 4.94863 31.46 1485.23 1024.337 26.25 26.16 9.777 3.44323 4.95038 31.47 1485.15 1024.349 26.55 26.46 9.764 3.44334 4.95247 31.48 1485.12 1024.363 26.85 26.76 9.750 3.44153 4.95189 31.47 1485.07 1024.362 27.15 27.05 9.738 3.44110 4.95299 31.48 1485.04 1024.370 27.45 27.35 9.725 3.44067 4.95415 31.48 1485.01 1024.378 27.75 27.65 9.710 3.43981 4.95514 31.49 1484.96 1024.386 28.05 27.95 9.701 3.43958 4.95609 31.49 1484.94 1024.393 28.35 28.25 9.690 3.43978 4.95790 31.51 1484.92 1024.405 28.65 28.55 9.678 3.43985 4.95974 31.52 1484.89 1024.417 28.95 28.85 9.668 3.43985 4.96111 31.53 1484.87 1024.426 29.25 29.14 9.657 3.43960 4.96237 31.53 1484.84 1024.435 29.55 29.44 9.647 3.43909 4.96308 31.54 1484.82 1024.441 29.85 29.74 9.636 3.43865 4.96399 31.54 1484.79 1024.448 30.15 30.04 9.627 3.43834 4.96488 31.55 1484.76 1024.454 30.45 30.34 9.619 3.43748 4.96476 31.54 1484.74 1024.455 30.75 30.64 9.614 3.43722 4.96502 31.55 1484.73 1024.458 31.05 30.94 9.610 3.43733 4.96576 31.55 1484.72 1024.464 31.35 31.23 9.604 3.43832 4.96808 31.57 1484.73 1024.478 31.65 31.53 9.596 3.43811 4.96892 31.57 1484.71 1024.485 31.95 31.83 9.588 3.43782 4.96962 31.57 1484.69 1024.490 32.25 32.13 9.575 3.43653 4.96972 31.57 1484.64 1024.493 32.55 32.43 9.565 3.43512 4.96907 31.57 1484.60 1024.491 32.85 32.73 9.558 3.43243 4.96624 31.55 1484.56 1024.477 33.15 33.02 9.551 3.43215 4.96676 31.55 1484.54 1024.482 33.45 33.32 9.545 3.43120 4.96631 31.54 1484.52 1024.481 33.75 33.62 9.537 3.43135 4.96765 31.55 1484.50 1024.490 34.05 33.92 9.536 3.43154 4.96803 31.55 1484.51 1024.493 34.35 34.22 9.534 3.43114 4.96776 31.55 1484.50 1024.493 34.65 34.52 9.531 3.43060 4.96744 31.55 1484.49 1024.493 34.95 34.82 9.516 3.42992 4.96867 31.56 1484.45 1024.502 35.25 35.11 9.485 3.43096 4.97457 31.59 1484.39 1024.537 35.55 35.41 9.463 3.43082 4.97761 31.61 1484.33 1024.556 35.85 35.71 9.443 3.43184 4.98192 31.64 1484.30 1024.582 36.15 36.01 9.430 3.43030 4.98152 31.63 1484.25 1024.582 36.45 36.31 9.413 3.43038 4.98420 31.65 1484.21 1024.599 36.75 36.61 9.383 3.43038 4.98847 31.68 1484.14 1024.625 36.98 36.84 9.380 3.43069 4.98941 31.68 1484.14 1024.631