*2026/01/16 09:57:57.10 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/25 23:46:00.000 END TIME : UTC 2024/11/25 23:46:27.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 137 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.9 2 Depth metres 0.15 40.77 3 Temperature 'deg C (ITS90)' 8.725 10.897 4 Conductivity S/m 1.92804 3.45721 5 Conductance:Specific S/m 2.85631 4.82497 6 Salinity PSS-78 17.13 30.7 7 Speed:Sound m/s 1463.36 1488.25 8 Density kg/m^3 1013.195 1023.646 $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 : 303 LATITUDE : 48 57.71250 N ! (deg min) LONGITUDE : 124 59.28610 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241125_234600 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 137 137 MERGEHDR 1.3 2026/01/16 09:54:11 137 137 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 137 137 CALIB 12.1 2026/01/16 09:56:59 137 137 CLEAN 5.3 2026/01/16 09:57:57 137 137 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:15 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 09:56:25 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 8.725 1.93419 2.86762 17.20 1463.36 1013.253 0.45 0.45 8.751 1.92804 2.85631 17.13 1463.38 1013.195 0.75 0.75 8.827 1.99792 2.95318 17.77 1464.46 1013.686 1.05 1.06 8.981 2.07138 3.04783 18.40 1465.84 1014.163 1.35 1.36 9.152 2.13190 3.12124 18.90 1467.11 1014.531 1.65 1.66 9.343 2.30959 3.36253 20.52 1469.82 1015.770 1.95 1.96 9.517 2.46489 3.57058 21.93 1472.20 1016.846 2.25 2.26 9.678 2.65646 3.83015 23.70 1474.96 1018.204 2.55 2.56 9.917 2.86866 4.10784 25.62 1478.18 1019.667 2.85 2.86 10.146 3.06625 4.36216 27.40 1481.18 1021.018 3.15 3.16 10.262 3.19505 4.53048 28.59 1483.04 1021.923 3.45 3.46 10.383 3.26851 4.61874 29.22 1484.25 1022.395 3.75 3.76 10.496 3.27474 4.61283 29.19 1484.63 1022.355 4.05 4.06 10.564 3.29450 4.63173 29.33 1485.05 1022.454 4.35 4.36 10.584 3.30887 4.64943 29.45 1485.27 1022.551 4.65 4.66 10.600 3.31665 4.65820 29.52 1485.41 1022.598 4.95 4.95 10.618 3.31998 4.66048 29.54 1485.51 1022.611 5.25 5.25 10.633 3.31972 4.65818 29.52 1485.55 1022.598 5.55 5.55 10.645 3.32470 4.66368 29.56 1485.64 1022.629 5.85 5.85 10.656 3.32635 4.66448 29.57 1485.70 1022.633 6.15 6.15 10.663 3.32898 4.66724 29.59 1485.75 1022.649 6.45 6.45 10.670 3.33503 4.67478 29.64 1485.85 1022.691 6.75 6.75 10.685 3.33877 4.67805 29.67 1485.93 1022.709 7.05 7.05 10.697 3.34090 4.67959 29.68 1485.99 1022.718 7.35 7.35 10.709 3.34667 4.68607 29.72 1486.10 1022.753 7.65 7.65 10.720 3.35055 4.68999 29.75 1486.18 1022.775 7.95 7.94 10.734 3.35751 4.69793 29.81 1486.30 1022.819 8.25 8.24 10.750 3.37116 4.71490 29.93 1486.51 1022.911 8.55 8.54 10.765 3.38256 4.72885 30.03 1486.69 1022.988 8.85 8.84 10.782 3.38956 4.73636 30.09 1486.82 1023.029 9.15 9.14 10.794 3.39088 4.73660 30.09 1486.87 1023.030 9.45 9.44 10.807 3.39313 4.73810 30.10 1486.94 1023.039 9.75 9.74 10.814 3.39661 4.74207 30.13 1487.00 1023.061 10.05 10.04 10.820 3.39763 4.74260 30.13 1487.03 1023.065 10.35 10.34 10.826 3.39985 4.74495 30.15 1487.08 1023.079 10.65 10.64 10.834 3.40279 4.74799 30.17 1487.14 1023.096 10.95 10.93 10.838 3.40462 4.75006 30.19 1487.18 1023.108 11.25 11.23 10.844 3.40605 4.75125 30.20 1487.21 1023.115 11.55 11.53 10.849 3.40804 4.75330 30.21 1487.26 1023.127 11.85 11.83 10.854 3.40993 4.75532 30.23 1487.29 1023.139 12.15 12.13 10.858 3.41132 4.75676 30.24 1487.33 1023.148 12.45 12.43 10.862 3.41200 4.75717 30.24 1487.35 1023.151 12.75 12.73 10.864 3.41288 4.75808 30.25 1487.37 1023.157 13.05 13.03 10.866 3.41378 4.75911 30.25 1487.39 1023.164 13.35 13.33 10.864 3.41418 4.75988 30.26 1487.40 1023.170 13.65 13.62 10.866 3.41449 4.76005 30.26 1487.41 1023.172 13.95 13.92 10.867 3.41522 4.76094 30.27 1487.42 1023.178 14.25 14.22 10.867 3.41592 4.76187 30.27 1487.44 1023.184 14.55 14.52 10.869 3.41590 4.76169 30.27 1487.45 1023.185 14.85 14.82 10.870 3.41684 4.76279 30.28 1487.47 1023.192 15.15 15.12 10.870 3.41690 4.76292 30.28 1487.47 1023.194 15.45 15.42 10.870 3.41736 4.76347 30.28 1487.48 1023.198 15.75 15.72 10.871 3.41876 4.76538 30.30 1487.51 1023.210 16.05 16.02 10.871 3.42026 4.76742 30.31 1487.53 1023.222 16.35 16.31 10.872 3.42165 4.76931 30.32 1487.55 1023.234 16.65 16.61 10.872 3.42190 4.76964 30.33 1487.56 1023.237 16.95 16.91 10.870 3.42253 4.77078 30.33 1487.57 1023.244 17.25 17.21 10.870 3.42267 4.77088 30.33 1487.57 1023.246 17.55 17.51 10.870 3.42301 4.77146 30.34 1487.58 1023.251 17.85 17.81 10.868 3.42296 4.77156 30.34 1487.58 1023.253 18.15 18.11 10.867 3.42431 4.77359 30.35 1487.60 1023.265 18.45 18.41 10.865 3.42393 4.77333 30.35 1487.60 1023.265 18.75 18.71 10.865 3.42472 4.77446 30.36 1487.61 1023.273 19.05 19.00 10.864 3.42553 4.77576 30.37 1487.62 1023.281 19.35 19.30 10.862 3.42545 4.77586 30.37 1487.62 1023.283 19.65 19.60 10.862 3.42627 4.77707 30.38 1487.63 1023.291 19.95 19.90 10.861 3.42594 4.77664 30.37 1487.63 1023.290 20.25 20.20 10.862 3.42737 4.77855 30.39 1487.66 1023.302 20.55 20.50 10.864 3.42722 4.77802 30.38 1487.67 1023.300 20.85 20.80 10.866 3.42868 4.77981 30.40 1487.69 1023.311 21.15 21.10 10.872 3.42893 4.77937 30.39 1487.72 1023.309 21.45 21.39 10.878 3.43107 4.78162 30.41 1487.76 1023.322 21.75 21.69 10.879 3.43237 4.78324 30.42 1487.78 1023.332 22.05 21.99 10.884 3.43327 4.78381 30.43 1487.81 1023.336 22.35 22.29 10.892 3.43350 4.78308 30.42 1487.84 1023.333 22.65 22.59 10.893 3.43344 4.78288 30.42 1487.85 1023.333 22.95 22.89 10.894 3.43407 4.78360 30.42 1487.86 1023.338 23.25 23.19 10.895 3.43398 4.78333 30.42 1487.87 1023.338 23.55 23.49 10.895 3.43352 4.78278 30.42 1487.87 1023.336 23.85 23.79 10.895 3.43418 4.78367 30.42 1487.88 1023.342 24.15 24.08 10.895 3.43526 4.78512 30.44 1487.90 1023.351 24.45 24.38 10.895 3.43511 4.78497 30.43 1487.90 1023.352 24.75 24.68 10.895 3.43645 4.78682 30.45 1487.92 1023.363 25.05 24.98 10.894 3.43616 4.78649 30.44 1487.92 1023.363 25.35 25.28 10.895 3.43682 4.78733 30.45 1487.93 1023.369 25.65 25.58 10.895 3.43647 4.78679 30.45 1487.94 1023.367 25.95 25.88 10.895 3.43742 4.78817 30.46 1487.95 1023.376 26.25 26.18 10.897 3.43757 4.78815 30.46 1487.96 1023.377 26.55 26.48 10.896 3.43801 4.78883 30.46 1487.97 1023.382 26.85 26.77 10.896 3.43866 4.78975 30.47 1487.98 1023.388 27.15 27.07 10.897 3.44054 4.79230 30.48 1488.01 1023.403 27.45 27.37 10.897 3.44122 4.79314 30.49 1488.03 1023.409 27.75 27.67 10.891 3.44080 4.79341 30.49 1488.01 1023.412 28.05 27.97 10.877 3.44036 4.79463 30.50 1487.97 1023.421 28.35 28.27 10.862 3.44013 4.79636 30.51 1487.94 1023.433 28.65 28.57 10.870 3.44253 4.79861 30.53 1487.99 1023.446 28.95 28.87 10.863 3.44087 4.79720 30.51 1487.96 1023.441 29.25 29.16 10.868 3.44251 4.79882 30.53 1488.00 1023.450 29.55 29.46 10.886 3.44314 4.79736 30.52 1488.05 1023.442 29.85 29.76 10.885 3.44409 4.79881 30.53 1488.07 1023.451 30.15 30.06 10.886 3.44479 4.79956 30.53 1488.08 1023.457 30.45 30.36 10.887 3.44500 4.79981 30.54 1488.09 1023.459 30.75 30.66 10.884 3.44521 4.80052 30.54 1488.09 1023.465 31.05 30.96 10.862 3.44415 4.80192 30.55 1488.03 1023.475 31.35 31.26 10.868 3.44633 4.80418 30.56 1488.07 1023.489 31.65 31.56 10.872 3.44615 4.80340 30.56 1488.09 1023.485 31.95 31.85 10.877 3.44699 4.80394 30.56 1488.11 1023.489 32.25 32.15 10.879 3.44754 4.80444 30.57 1488.13 1023.493 32.55 32.45 10.880 3.44905 4.80643 30.58 1488.15 1023.505 32.85 32.75 10.880 3.44868 4.80582 30.58 1488.16 1023.503 33.15 33.05 10.879 3.44858 4.80581 30.58 1488.16 1023.504 33.45 33.35 10.878 3.44964 4.80744 30.59 1488.17 1023.514 33.75 33.65 10.877 3.44941 4.80732 30.59 1488.17 1023.515 34.05 33.95 10.876 3.44958 4.80761 30.59 1488.18 1023.518 34.35 34.24 10.875 3.44988 4.80820 30.59 1488.18 1023.523 34.65 34.54 10.874 3.44946 4.80781 30.59 1488.18 1023.522 34.95 34.84 10.869 3.45037 4.80962 30.60 1488.18 1023.534 35.25 35.14 10.869 3.45023 4.80942 30.60 1488.19 1023.534 35.55 35.44 10.865 3.45055 4.81042 30.61 1488.18 1023.541 35.85 35.74 10.864 3.45027 4.81024 30.60 1488.18 1023.541 36.15 36.04 10.862 3.45040 4.81072 30.61 1488.18 1023.545 36.45 36.34 10.860 3.45039 4.81094 30.61 1488.18 1023.548 36.75 36.63 10.857 3.45103 4.81228 30.62 1488.19 1023.557 37.05 36.93 10.857 3.45105 4.81227 30.62 1488.19 1023.558 37.35 37.23 10.858 3.45197 4.81342 30.63 1488.21 1023.565 37.65 37.53 10.843 3.45298 4.81676 30.65 1488.19 1023.586 37.95 37.83 10.842 3.45326 4.81731 30.65 1488.20 1023.591 38.25 38.13 10.838 3.45364 4.81840 30.66 1488.19 1023.598 38.55 38.43 10.834 3.45352 4.81875 30.66 1488.19 1023.602 38.85 38.73 10.833 3.45383 4.81939 30.66 1488.19 1023.607 39.15 39.02 10.833 3.45474 4.82066 30.67 1488.21 1023.615 39.45 39.32 10.830 3.45669 4.82371 30.69 1488.23 1023.633 39.75 39.62 10.834 3.45690 4.82355 30.69 1488.24 1023.633 40.05 39.92 10.834 3.45717 4.82387 30.70 1488.25 1023.636 40.35 40.22 10.832 3.45692 4.82378 30.69 1488.25 1023.637 40.65 40.52 10.827 3.45702 4.82461 30.70 1488.24 1023.643 40.90 40.77 10.826 3.45721 4.82497 30.70 1488.25 1023.646