*2026/01/16 10:37:56.81 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/25 21:02:08.000 END TIME : UTC 2025/06/25 21:02:32.600 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 37.09 2 Depth metres 0.15 36.97 3 Temperature 'deg C (ITS90)' 9.432 16.898 4 Conductivity S/m 2.36074 3.54305 5 Conductance:Specific S/m 2.81738 5.02364 6 Salinity PSS-78 17.24 31.93 7 Speed:Sound m/s 1484.64 1495.96 8 Density kg/m^3 1011.957 1024.818 $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 : 193 LATITUDE : 49 3.23390 N ! (deg min) LONGITUDE : 124 50.45580 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250625_210208 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 124 124 MERGEHDR 1.3 2026/01/16 10:35:47 124 124 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:48 124 124 CALIB 12.1 2026/01/16 10:37:20 124 124 CLEAN 5.3 2026/01/16 10:37:56 124 124 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:48 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 16.898 2.37037 2.82874 17.31 1492.34 1012.014 0.45 0.45 16.896 2.36074 2.81738 17.24 1492.26 1011.957 0.75 0.76 16.894 2.37204 2.83097 17.33 1492.36 1012.028 1.05 1.06 16.881 2.37279 2.83277 17.34 1492.33 1012.041 1.35 1.36 16.842 2.37349 2.83625 17.36 1492.24 1012.068 1.65 1.66 16.850 2.37358 2.83580 17.36 1492.27 1012.065 1.95 1.96 16.877 2.37389 2.83435 17.35 1492.35 1012.054 2.25 2.27 16.880 2.37618 2.83689 17.37 1492.38 1012.068 2.55 2.57 16.864 2.37928 2.84166 17.40 1492.37 1012.096 2.85 2.87 16.813 2.38373 2.85044 17.46 1492.28 1012.152 3.15 3.17 16.736 2.38616 2.85866 17.51 1492.10 1012.210 3.45 3.47 16.597 2.38962 2.87234 17.60 1491.76 1012.307 3.75 3.78 16.140 2.51335 3.05467 18.81 1491.69 1013.328 4.05 4.08 15.791 2.69422 3.30246 20.48 1492.48 1014.675 4.35 4.38 15.133 2.86107 3.56449 22.25 1492.38 1016.160 4.65 4.68 14.514 3.20498 4.05550 25.62 1494.26 1018.870 4.95 4.98 13.980 3.49407 4.48192 28.58 1495.96 1021.257 5.25 5.28 13.351 3.51777 4.58625 29.27 1494.68 1021.914 5.55 5.58 12.894 3.53422 4.66334 29.78 1493.74 1022.396 5.85 5.88 12.544 3.54056 4.71515 30.11 1492.96 1022.723 6.15 6.18 12.269 3.54305 4.75334 30.36 1492.31 1022.966 6.45 6.48 12.031 3.53640 4.77488 30.49 1491.65 1023.111 6.75 6.77 11.852 3.53872 4.80126 30.66 1491.24 1023.276 7.05 7.07 11.732 3.53669 4.81418 30.74 1490.92 1023.361 7.35 7.37 11.658 3.53489 4.82146 30.78 1490.72 1023.410 7.65 7.67 11.606 3.53796 4.83244 30.85 1490.63 1023.476 7.95 7.97 11.568 3.53704 4.83620 30.88 1490.53 1023.502 8.25 8.27 11.527 3.53569 4.83977 30.90 1490.42 1023.527 8.55 8.57 11.484 3.53521 4.84487 30.93 1490.31 1023.560 8.85 8.87 11.455 3.53459 4.84794 30.95 1490.23 1023.581 9.15 9.16 11.430 3.53429 4.85074 30.96 1490.17 1023.600 9.45 9.46 11.401 3.53701 4.85837 31.01 1490.14 1023.646 9.75 9.76 11.354 3.53645 4.86394 31.05 1490.02 1023.683 10.05 10.06 11.314 3.53589 4.86849 31.08 1489.92 1023.713 10.35 10.36 11.259 3.53462 4.87419 31.11 1489.77 1023.751 10.65 10.66 11.210 3.53359 4.87935 31.14 1489.64 1023.785 10.95 10.96 11.176 3.53229 4.88212 31.16 1489.54 1023.804 11.25 11.26 11.143 3.53200 4.88612 31.18 1489.46 1023.830 11.55 11.55 11.117 3.53169 4.88918 31.20 1489.40 1023.851 11.85 11.85 11.096 3.53006 4.88984 31.20 1489.33 1023.858 12.15 12.15 11.068 3.52849 4.89140 31.21 1489.25 1023.870 12.45 12.45 11.045 3.52797 4.89391 31.23 1489.19 1023.887 12.75 12.75 11.023 3.52793 4.89679 31.24 1489.14 1023.906 13.05 13.05 11.002 3.52704 4.89838 31.25 1489.08 1023.918 13.35 13.35 10.976 3.52664 4.90136 31.27 1489.01 1023.938 13.65 13.65 10.939 3.52375 4.90235 31.27 1488.89 1023.948 13.95 13.94 10.898 3.52293 4.90690 31.30 1488.78 1023.977 14.25 14.24 10.852 3.51973 4.90864 31.31 1488.63 1023.992 14.55 14.54 10.804 3.51896 4.91425 31.34 1488.51 1024.028 14.85 14.84 10.754 3.51693 4.91824 31.36 1488.36 1024.056 15.15 15.14 10.715 3.51601 4.92225 31.39 1488.26 1024.082 15.45 15.44 10.682 3.51431 4.92443 31.40 1488.16 1024.098 15.75 15.74 10.654 3.51248 4.92577 31.40 1488.07 1024.109 16.05 16.03 10.633 3.51204 4.92801 31.42 1488.02 1024.124 16.35 16.33 10.599 3.51098 4.93133 31.44 1487.92 1024.146 16.65 16.63 10.565 3.51004 4.93470 31.46 1487.83 1024.169 16.95 16.93 10.542 3.50937 4.93689 31.47 1487.77 1024.184 17.25 17.23 10.520 3.50836 4.93852 31.48 1487.71 1024.196 17.55 17.53 10.507 3.50725 4.93874 31.48 1487.66 1024.199 17.85 17.83 10.489 3.50692 4.94085 31.49 1487.62 1024.213 18.15 18.12 10.475 3.50619 4.94182 31.50 1487.58 1024.221 18.45 18.42 10.459 3.50625 4.94407 31.51 1487.54 1024.236 18.75 18.72 10.446 3.50480 4.94384 31.51 1487.50 1024.237 19.05 19.02 10.435 3.50497 4.94560 31.52 1487.48 1024.249 19.35 19.32 10.426 3.50383 4.94529 31.51 1487.44 1024.249 19.65 19.62 10.416 3.50465 4.94783 31.53 1487.43 1024.265 19.95 19.92 10.404 3.50264 4.94662 31.52 1487.39 1024.260 20.25 20.21 10.396 3.50306 4.94833 31.53 1487.37 1024.272 20.55 20.51 10.391 3.50331 4.94945 31.54 1487.37 1024.279 20.85 20.81 10.385 3.50284 4.94965 31.54 1487.35 1024.282 21.15 21.11 10.378 3.50227 4.94981 31.54 1487.33 1024.285 21.45 21.41 10.371 3.50111 4.94911 31.53 1487.31 1024.283 21.75 21.71 10.363 3.50106 4.95021 31.54 1487.29 1024.291 22.05 22.01 10.349 3.50055 4.95137 31.55 1487.25 1024.299 22.35 22.30 10.336 3.49961 4.95184 31.55 1487.21 1024.304 22.65 22.60 10.323 3.49902 4.95292 31.55 1487.18 1024.312 22.95 22.90 10.307 3.49971 4.95610 31.57 1487.15 1024.332 23.25 23.20 10.273 3.49765 4.95799 31.58 1487.04 1024.346 23.55 23.50 10.246 3.49520 4.95834 31.58 1486.95 1024.351 23.85 23.80 10.225 3.49261 4.95758 31.57 1486.87 1024.350 24.15 24.10 10.188 3.49097 4.96046 31.59 1486.76 1024.370 24.45 24.39 10.149 3.48883 4.96297 31.60 1486.64 1024.387 24.75 24.69 10.121 3.48821 4.96605 31.62 1486.56 1024.408 25.05 24.99 10.096 3.48603 4.96648 31.62 1486.48 1024.413 25.35 25.29 10.066 3.48430 4.96820 31.63 1486.39 1024.426 25.65 25.59 10.031 3.48147 4.96907 31.63 1486.27 1024.434 25.95 25.89 10.003 3.47957 4.97037 31.64 1486.18 1024.444 26.25 26.19 9.985 3.47914 4.97231 31.65 1486.13 1024.457 26.55 26.48 9.968 3.47882 4.97431 31.66 1486.09 1024.471 26.85 26.78 9.951 3.47786 4.97529 31.66 1486.04 1024.478 27.15 27.08 9.935 3.47678 4.97609 31.67 1485.99 1024.485 27.45 27.38 9.921 3.47596 4.97682 31.67 1485.95 1024.491 27.75 27.68 9.910 3.47500 4.97708 31.67 1485.91 1024.495 28.05 27.98 9.898 3.47434 4.97782 31.67 1485.88 1024.501 28.35 28.28 9.888 3.47347 4.97800 31.67 1485.85 1024.504 28.65 28.57 9.879 3.47337 4.97910 31.68 1485.83 1024.511 28.95 28.87 9.874 3.47345 4.98007 31.69 1485.82 1024.518 29.25 29.17 9.867 3.47257 4.97974 31.68 1485.79 1024.518 29.55 29.47 9.855 3.47228 4.98098 31.69 1485.77 1024.527 29.85 29.77 9.844 3.47132 4.98128 31.69 1485.73 1024.531 30.15 30.07 9.835 3.47023 4.98102 31.69 1485.70 1024.531 30.45 30.36 9.821 3.46994 4.98255 31.70 1485.66 1024.542 30.75 30.66 9.812 3.47004 4.98403 31.71 1485.64 1024.552 31.05 30.96 9.800 3.46989 4.98552 31.71 1485.62 1024.562 31.35 31.26 9.786 3.46950 4.98689 31.72 1485.58 1024.571 31.65 31.56 9.776 3.46796 4.98620 31.72 1485.54 1024.569 31.95 31.86 9.751 3.46755 4.98908 31.73 1485.48 1024.588 32.25 32.16 9.719 3.46603 4.99155 31.75 1485.38 1024.605 32.55 32.45 9.694 3.46496 4.99363 31.76 1485.31 1024.619 32.85 32.75 9.663 3.46385 4.99641 31.77 1485.22 1024.637 33.15 33.05 9.642 3.46288 4.99805 31.78 1485.16 1024.649 33.45 33.35 9.650 3.46373 4.99810 31.78 1485.19 1024.650 33.75 33.65 9.650 3.46357 4.99800 31.78 1485.19 1024.651 34.05 33.95 9.629 3.46201 4.99871 31.78 1485.13 1024.657 34.35 34.24 9.592 3.45985 5.00100 31.79 1485.01 1024.673 34.65 34.54 9.562 3.45975 5.00518 31.82 1484.93 1024.699 34.95 34.84 9.534 3.45887 5.00794 31.84 1484.86 1024.717 35.25 35.14 9.510 3.46016 5.01328 31.87 1484.82 1024.749 35.55 35.44 9.498 3.46071 5.01586 31.89 1484.80 1024.765 35.85 35.74 9.489 3.46000 5.01615 31.89 1484.77 1024.768 36.15 36.04 9.481 3.45964 5.01668 31.89 1484.75 1024.773 36.45 36.33 9.469 3.45794 5.01602 31.88 1484.70 1024.771 36.75 36.63 9.440 3.45944 5.02245 31.92 1484.65 1024.809 37.09 36.97 9.432 3.45949 5.02364 31.93 1484.64 1024.818