*2026/01/16 10:37:50.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 22:24:41.000 END TIME : UTC 2025/04/08 22:25:02.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 110 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.9 2 Depth metres 0.15 32.82 3 Temperature 'deg C (ITS90)' 8.619 9.918 4 Conductivity S/m 1.95089 3.13357 5 Conductance:Specific S/m 2.81136 4.65337 6 Salinity PSS-78 16.9 29.24 7 Speed:Sound m/s 1466.74 1480.59 8 Density kg/m^3 1012.899 1022.809 $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 : 91 LATITUDE : 49 52.03900 N ! (deg min) LONGITUDE : 126 49.01140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_222441 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 110 110 MERGEHDR 1.3 2026/01/16 10:35:41 110 110 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 110 110 CALIB 12.1 2026/01/16 10:37:14 110 110 CLEAN 5.3 2026/01/16 10:37:50 110 110 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 9.696 1.95089 2.81136 16.90 1466.74 1012.899 0.45 0.45 9.794 2.15360 3.09481 18.77 1469.39 1014.345 0.75 0.75 9.906 2.66579 3.81857 23.64 1475.71 1018.120 1.05 1.05 9.866 2.97304 4.26348 26.69 1479.26 1020.499 1.35 1.35 9.899 3.01131 4.31426 27.05 1479.82 1020.771 1.65 1.65 9.909 3.04382 4.35963 27.36 1480.24 1021.016 1.95 1.95 9.900 3.05693 4.37950 27.50 1480.38 1021.125 2.25 2.25 9.907 3.06653 4.39241 27.59 1480.52 1021.196 2.55 2.55 9.916 3.06694 4.39194 27.58 1480.55 1021.194 2.85 2.85 9.918 3.06797 4.39308 27.59 1480.58 1021.201 3.15 3.15 9.916 3.06659 4.39140 27.58 1480.56 1021.194 3.45 3.45 9.912 3.06458 4.38896 27.56 1480.53 1021.182 3.75 3.75 9.907 3.06989 4.39722 27.62 1480.59 1021.228 4.05 4.05 9.904 3.07088 4.39903 27.63 1480.59 1021.240 4.35 4.35 9.899 3.07109 4.39997 27.64 1480.59 1021.246 4.65 4.65 9.896 3.07172 4.40129 27.65 1480.59 1021.255 4.95 4.95 9.892 3.07220 4.40244 27.65 1480.59 1021.263 5.25 5.25 9.887 3.07255 4.40358 27.66 1480.59 1021.271 5.55 5.55 9.878 3.07324 4.40565 27.67 1480.58 1021.284 5.85 5.84 9.862 3.07349 4.40811 27.69 1480.54 1021.299 6.15 6.14 9.834 3.07227 4.40987 27.70 1480.45 1021.312 6.45 6.44 9.830 3.07162 4.40938 27.70 1480.44 1021.311 6.75 6.74 9.824 3.07064 4.40876 27.69 1480.42 1021.309 7.05 7.04 9.810 3.07220 4.41281 27.72 1480.40 1021.333 7.35 7.34 9.790 3.07398 4.41791 27.75 1480.37 1021.364 7.65 7.64 9.775 3.07463 4.42076 27.77 1480.34 1021.381 7.95 7.94 9.767 3.07514 4.42248 27.78 1480.33 1021.392 8.25 8.24 9.758 3.07502 4.42353 27.78 1480.31 1021.400 8.55 8.54 9.751 3.07403 4.42295 27.78 1480.28 1021.399 8.85 8.84 9.735 3.07517 4.42666 27.80 1480.26 1021.421 9.15 9.14 9.714 3.07610 4.43064 27.83 1480.22 1021.445 9.45 9.44 9.696 3.07637 4.43338 27.85 1480.17 1021.462 9.75 9.74 9.683 3.07751 4.43656 27.87 1480.16 1021.482 10.05 10.04 9.675 3.07789 4.43818 27.88 1480.15 1021.492 10.35 10.34 9.668 3.07893 4.44053 27.89 1480.14 1021.507 10.65 10.64 9.664 3.07913 4.44146 27.90 1480.14 1021.513 10.95 10.93 9.659 3.07901 4.44182 27.90 1480.13 1021.517 11.25 11.23 9.656 3.07883 4.44203 27.90 1480.12 1021.519 11.55 11.53 9.654 3.07957 4.44337 27.91 1480.13 1021.528 11.85 11.83 9.652 3.07955 4.44359 27.91 1480.13 1021.531 12.15 12.13 9.653 3.07966 4.44360 27.91 1480.14 1021.532 12.45 12.43 9.654 3.08107 4.44546 27.92 1480.16 1021.543 12.75 12.73 9.657 3.08233 4.44694 27.93 1480.19 1021.552 13.05 13.03 9.659 3.08286 4.44739 27.94 1480.21 1021.556 13.35 13.33 9.656 3.08431 4.44991 27.95 1480.22 1021.571 13.65 13.63 9.645 3.08548 4.45294 27.97 1480.21 1021.589 13.95 13.93 9.625 3.08502 4.45486 27.98 1480.16 1021.602 14.25 14.23 9.586 3.08450 4.45923 28.01 1480.05 1021.630 14.55 14.53 9.479 3.07509 4.45934 28.00 1479.64 1021.638 14.85 14.83 9.353 3.06707 4.46401 28.02 1479.20 1021.672 15.15 15.13 9.267 3.05287 4.45459 27.94 1478.79 1021.627 15.45 15.42 9.173 3.05203 4.46560 28.01 1478.52 1021.693 15.75 15.72 9.059 3.04958 4.47688 28.07 1478.18 1021.761 16.05 16.02 8.970 3.04664 4.48432 28.11 1477.90 1021.807 16.35 16.32 8.872 3.04657 4.49718 28.19 1477.63 1021.882 16.65 16.62 8.807 3.04914 4.50969 28.26 1477.48 1021.954 16.95 16.92 8.778 3.05180 4.51742 28.31 1477.44 1021.999 17.25 17.22 8.755 3.05453 4.52460 28.36 1477.42 1022.040 17.55 17.52 8.735 3.05696 4.53083 28.40 1477.40 1022.076 17.85 17.82 8.717 3.05855 4.53558 28.43 1477.37 1022.103 18.15 18.12 8.706 3.06035 4.53972 28.46 1477.37 1022.128 18.45 18.42 8.698 3.06413 4.54650 28.50 1477.40 1022.166 18.75 18.72 8.687 3.06656 4.55155 28.54 1477.40 1022.195 19.05 19.01 8.680 3.06929 4.55661 28.57 1477.42 1022.224 19.35 19.31 8.668 3.06850 4.55702 28.57 1477.38 1022.228 19.65 19.61 8.656 3.06973 4.56041 28.60 1477.37 1022.248 19.95 19.91 8.647 3.07049 4.56286 28.61 1477.36 1022.263 20.25 20.21 8.637 3.07038 4.56394 28.62 1477.34 1022.271 20.55 20.51 8.629 3.07176 4.56708 28.64 1477.34 1022.289 20.85 20.81 8.626 3.07290 4.56926 28.65 1477.35 1022.302 21.15 21.11 8.624 3.07501 4.57258 28.67 1477.37 1022.322 21.45 21.41 8.620 3.07840 4.57815 28.71 1477.41 1022.353 21.75 21.71 8.619 3.08031 4.58120 28.73 1477.43 1022.371 22.05 22.01 8.621 3.08062 4.58143 28.74 1477.45 1022.374 22.35 22.31 8.622 3.08123 4.58222 28.74 1477.46 1022.379 22.65 22.60 8.622 3.08221 4.58365 28.75 1477.48 1022.388 22.95 22.90 8.624 3.08278 4.58423 28.75 1477.50 1022.393 23.25 23.20 8.627 3.08375 4.58516 28.76 1477.53 1022.399 23.55 23.50 8.629 3.08521 4.58718 28.78 1477.55 1022.411 23.85 23.80 8.631 3.08760 4.59047 28.80 1477.59 1022.430 24.15 24.10 8.633 3.08880 4.59193 28.81 1477.62 1022.439 24.45 24.40 8.634 3.08960 4.59291 28.82 1477.64 1022.446 24.75 24.70 8.638 3.09306 4.59759 28.85 1477.70 1022.472 25.05 25.00 8.643 3.09456 4.59916 28.86 1477.73 1022.482 25.35 25.30 8.647 3.09674 4.60182 28.88 1477.78 1022.497 25.65 25.60 8.650 3.09789 4.60305 28.89 1477.81 1022.505 25.95 25.89 8.651 3.09994 4.60600 28.91 1477.84 1022.522 26.25 26.19 8.653 3.10113 4.60751 28.92 1477.86 1022.532 26.55 26.49 8.654 3.10291 4.61001 28.94 1477.89 1022.547 26.85 26.79 8.656 3.10383 4.61110 28.94 1477.92 1022.554 27.15 27.09 8.655 3.10400 4.61150 28.95 1477.92 1022.557 27.45 27.39 8.653 3.10454 4.61255 28.95 1477.93 1022.564 27.75 27.69 8.653 3.10567 4.61432 28.97 1477.94 1022.575 28.05 27.99 8.652 3.10527 4.61379 28.96 1477.94 1022.574 28.35 28.29 8.652 3.10626 4.61524 28.97 1477.96 1022.583 28.65 28.59 8.650 3.10907 4.61970 29.00 1477.99 1022.608 28.95 28.88 8.651 3.11352 4.62620 29.05 1478.06 1022.645 29.25 29.18 8.650 3.11665 4.63096 29.08 1478.10 1022.672 29.55 29.48 8.651 3.11678 4.63106 29.08 1478.11 1022.674 29.85 29.78 8.652 3.12142 4.63783 29.13 1478.17 1022.712 30.15 30.08 8.653 3.12124 4.63732 29.12 1478.18 1022.710 30.45 30.38 8.656 3.12300 4.63962 29.14 1478.22 1022.724 30.75 30.68 8.658 3.12471 4.64191 29.16 1478.25 1022.738 31.05 30.98 8.659 3.12862 4.64754 29.20 1478.30 1022.769 31.35 31.28 8.661 3.13055 4.65009 29.21 1478.34 1022.784 31.65 31.58 8.664 3.13114 4.65052 29.22 1478.36 1022.788 31.95 31.87 8.665 3.13066 4.64980 29.21 1478.36 1022.785 32.25 32.17 8.665 3.13109 4.65033 29.22 1478.37 1022.789 32.55 32.47 8.667 3.13229 4.65188 29.23 1478.40 1022.799 32.90 32.82 8.670 3.13357 4.65337 29.24 1478.43 1022.809