*2026/01/16 10:37:54.21 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/09 16:25:27.000 END TIME : UTC 2025/05/09 16:25:52.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 128 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.24 2 Depth metres 0.15 38.06 3 Temperature 'deg C (ITS90)' 9.176 12.672 4 Conductivity S/m 3.1569 3.45758 5 Conductance:Specific S/m 4.19439 5.05779 6 Salinity PSS-78 26.46 32.14 7 Speed:Sound m/s 1483.49 1489.92 8 Density kg/m^3 1019.852 1025.023 $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 : 150 LATITUDE : 48 52.92100 N ! (deg min) LONGITUDE : 125 4.80000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250509_162527 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 128 128 MERGEHDR 1.3 2026/01/16 10:35:44 128 128 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 128 128 CALIB 12.1 2026/01/16 10:37:17 128 128 CLEAN 5.3 2026/01/16 10:37:54 128 128 $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 10:36:41 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 12.672 3.16025 4.19439 26.46 1488.98 1019.852 0.45 0.45 12.549 3.15690 4.20375 26.52 1488.63 1019.919 0.75 0.75 12.409 3.18061 4.25117 26.84 1488.53 1020.193 1.05 1.05 12.266 3.24876 4.35883 27.58 1488.92 1020.792 1.35 1.35 12.153 3.29537 4.43481 28.10 1489.15 1021.219 1.65 1.65 12.113 3.34370 4.50474 28.59 1489.60 1021.604 1.95 1.95 12.050 3.38363 4.56628 29.02 1489.89 1021.948 2.25 2.25 11.974 3.40268 4.60143 29.26 1489.92 1022.149 2.55 2.55 11.801 3.41918 4.64545 29.55 1489.67 1022.409 2.85 2.84 11.596 3.42475 4.67916 29.77 1489.22 1022.616 3.15 3.14 11.300 3.42540 4.71818 30.01 1488.48 1022.859 3.45 3.44 11.081 3.42663 4.74851 30.21 1487.94 1023.047 3.75 3.74 10.966 3.42704 4.76428 30.30 1487.66 1023.145 4.05 4.04 10.762 3.42916 4.79445 30.49 1487.16 1023.329 4.35 4.34 10.525 3.42902 4.82623 30.69 1486.56 1023.523 4.65 4.64 10.289 3.42812 4.85719 30.88 1485.95 1023.712 4.95 4.94 10.173 3.42672 4.87123 30.97 1485.63 1023.799 5.25 5.24 10.067 3.42558 4.88428 31.05 1485.35 1023.879 5.55 5.53 9.909 3.42452 4.90489 31.17 1484.93 1024.004 5.85 5.83 9.786 3.42109 4.91738 31.24 1484.58 1024.081 6.15 6.13 9.709 3.42067 4.92759 31.30 1484.38 1024.143 6.45 6.43 9.675 3.41952 4.93075 31.32 1484.28 1024.164 6.75 6.73 9.642 3.41937 4.93526 31.35 1484.20 1024.192 7.05 7.03 9.593 3.41926 4.94209 31.39 1484.07 1024.233 7.35 7.33 9.563 3.41853 4.94534 31.41 1483.99 1024.254 7.65 7.62 9.539 3.41826 4.94842 31.43 1483.93 1024.274 7.95 7.92 9.523 3.41888 4.95162 31.45 1483.90 1024.293 8.25 8.22 9.510 3.41831 4.95264 31.45 1483.86 1024.301 8.55 8.52 9.499 3.41851 4.95449 31.47 1483.84 1024.313 8.85 8.82 9.490 3.41737 4.95411 31.46 1483.81 1024.313 9.15 9.12 9.478 3.41742 4.95599 31.47 1483.78 1024.325 9.45 9.42 9.463 3.41733 4.95792 31.48 1483.75 1024.338 9.75 9.71 9.447 3.41730 4.96019 31.50 1483.71 1024.352 10.05 10.01 9.431 3.41549 4.95987 31.49 1483.65 1024.353 10.35 10.31 9.419 3.41225 4.95695 31.47 1483.59 1024.338 10.65 10.61 9.406 3.41169 4.95806 31.48 1483.55 1024.346 10.95 10.91 9.390 3.41243 4.96142 31.50 1483.52 1024.367 11.25 11.21 9.378 3.41347 4.96468 31.52 1483.51 1024.387 11.55 11.51 9.363 3.41547 4.96971 31.55 1483.50 1024.417 11.85 11.80 9.352 3.41629 4.97241 31.57 1483.49 1024.433 12.15 12.10 9.345 3.41777 4.97570 31.59 1483.49 1024.453 12.45 12.40 9.339 3.41871 4.97790 31.61 1483.49 1024.467 12.75 12.70 9.337 3.41994 4.98003 31.62 1483.51 1024.480 13.05 13.00 9.332 3.42201 4.98374 31.65 1483.52 1024.502 13.35 13.30 9.330 3.42356 4.98629 31.66 1483.54 1024.517 13.65 13.60 9.328 3.42353 4.98648 31.67 1483.54 1024.520 13.95 13.89 9.327 3.42443 4.98792 31.67 1483.56 1024.529 14.25 14.19 9.327 3.42455 4.98808 31.68 1483.56 1024.531 14.55 14.49 9.327 3.42424 4.98774 31.67 1483.56 1024.530 14.85 14.79 9.326 3.42457 4.98826 31.68 1483.57 1024.534 15.15 15.09 9.326 3.42514 4.98910 31.68 1483.58 1024.540 15.45 15.39 9.327 3.42489 4.98863 31.68 1483.59 1024.539 15.75 15.69 9.326 3.42550 4.98963 31.69 1483.60 1024.546 16.05 15.98 9.326 3.42508 4.98898 31.68 1483.60 1024.543 16.35 16.28 9.326 3.42535 4.98946 31.68 1483.60 1024.547 16.65 16.58 9.326 3.42572 4.98999 31.69 1483.61 1024.552 16.95 16.88 9.325 3.42630 4.99093 31.69 1483.62 1024.558 17.25 17.18 9.326 3.42616 4.99067 31.69 1483.63 1024.558 17.55 17.48 9.326 3.42681 4.99150 31.70 1483.64 1024.564 17.85 17.77 9.327 3.42639 4.99080 31.69 1483.64 1024.561 18.15 18.07 9.328 3.42726 4.99199 31.70 1483.66 1024.569 18.45 18.37 9.327 3.42856 4.99391 31.72 1483.68 1024.581 18.75 18.67 9.327 3.42764 4.99257 31.71 1483.67 1024.575 19.05 18.97 9.327 3.42832 4.99362 31.71 1483.69 1024.582 19.35 19.27 9.328 3.42924 4.99482 31.72 1483.70 1024.589 19.65 19.57 9.329 3.43239 4.99925 31.75 1483.75 1024.615 19.95 19.86 9.339 3.43410 5.00030 31.76 1483.80 1024.622 20.25 20.16 9.334 3.43746 5.00589 31.80 1483.84 1024.654 20.55 20.46 9.325 3.44168 5.01342 31.85 1483.87 1024.697 20.85 20.76 9.320 3.44224 5.01498 31.86 1483.87 1024.707 21.15 21.06 9.315 3.44255 5.01611 31.87 1483.87 1024.715 21.45 21.36 9.310 3.44325 5.01778 31.88 1483.87 1024.726 21.75 21.65 9.307 3.44290 5.01778 31.88 1483.86 1024.727 22.05 21.95 9.304 3.44298 5.01829 31.88 1483.86 1024.731 22.35 22.25 9.301 3.44294 5.01869 31.88 1483.86 1024.735 22.65 22.55 9.299 3.44290 5.01901 31.89 1483.85 1024.738 22.95 22.85 9.298 3.44349 5.01993 31.89 1483.86 1024.744 23.25 23.15 9.298 3.44359 5.02004 31.89 1483.87 1024.746 23.55 23.45 9.300 3.44348 5.01960 31.89 1483.88 1024.745 23.85 23.74 9.301 3.44440 5.02079 31.90 1483.90 1024.753 24.15 24.04 9.302 3.44447 5.02074 31.90 1483.91 1024.754 24.45 24.34 9.303 3.44472 5.02094 31.90 1483.92 1024.756 24.75 24.64 9.305 3.44446 5.02032 31.90 1483.92 1024.754 25.05 24.94 9.306 3.44510 5.02117 31.90 1483.94 1024.760 25.35 25.24 9.306 3.44549 5.02167 31.90 1483.95 1024.764 25.65 25.53 9.305 3.44558 5.02193 31.91 1483.95 1024.766 25.95 25.83 9.305 3.44616 5.02288 31.91 1483.96 1024.773 26.25 26.13 9.303 3.44659 5.02370 31.92 1483.97 1024.779 26.55 26.43 9.301 3.44600 5.02317 31.91 1483.96 1024.777 26.85 26.73 9.300 3.44718 5.02506 31.93 1483.98 1024.789 27.15 27.03 9.297 3.44672 5.02475 31.92 1483.97 1024.789 27.45 27.32 9.295 3.44644 5.02472 31.92 1483.96 1024.790 27.75 27.62 9.296 3.44644 5.02458 31.92 1483.97 1024.790 28.05 27.92 9.296 3.44836 5.02735 31.94 1484.00 1024.807 28.35 28.22 9.297 3.44867 5.02764 31.94 1484.01 1024.810 28.65 28.52 9.297 3.45020 5.02989 31.96 1484.04 1024.823 28.95 28.82 9.298 3.45058 5.03035 31.96 1484.05 1024.827 29.25 29.12 9.299 3.45163 5.03171 31.97 1484.07 1024.836 29.55 29.41 9.298 3.45213 5.03248 31.98 1484.08 1024.841 29.85 29.71 9.299 3.45291 5.03359 31.99 1484.09 1024.849 30.15 30.01 9.300 3.45384 5.03473 31.99 1484.11 1024.856 30.45 30.31 9.300 3.45451 5.03574 32.00 1484.13 1024.863 30.75 30.61 9.299 3.45546 5.03729 32.01 1484.14 1024.873 31.05 30.91 9.296 3.45577 5.03821 32.02 1484.14 1024.879 31.35 31.20 9.292 3.45605 5.03912 32.02 1484.14 1024.886 31.65 31.50 9.288 3.45578 5.03938 32.02 1484.13 1024.889 31.95 31.80 9.283 3.45579 5.04006 32.03 1484.12 1024.894 32.25 32.10 9.278 3.45632 5.04162 32.04 1484.12 1024.904 32.55 32.40 9.270 3.45587 5.04212 32.04 1484.10 1024.909 32.85 32.70 9.266 3.45634 5.04339 32.05 1484.10 1024.917 33.15 32.99 9.262 3.45633 5.04401 32.05 1484.09 1024.922 33.45 33.29 9.254 3.45590 5.04458 32.06 1484.07 1024.927 33.75 33.59 9.249 3.45609 5.04554 32.06 1484.07 1024.933 34.05 33.89 9.243 3.45615 5.04645 32.07 1484.06 1024.940 34.35 34.19 9.240 3.45581 5.04646 32.07 1484.05 1024.942 34.65 34.49 9.239 3.45538 5.04595 32.06 1484.05 1024.940 34.95 34.79 9.237 3.45542 5.04626 32.06 1484.05 1024.943 35.25 35.08 9.235 3.45471 5.04563 32.06 1484.04 1024.941 35.55 35.38 9.232 3.45531 5.04690 32.07 1484.04 1024.949 35.85 35.68 9.229 3.45468 5.04646 32.06 1484.03 1024.948 36.15 35.98 9.225 3.45413 5.04628 32.06 1484.02 1024.949 36.45 36.28 9.221 3.45437 5.04711 32.07 1484.02 1024.955 36.75 36.58 9.215 3.45411 5.04761 32.07 1484.00 1024.959 37.05 36.87 9.206 3.45397 5.04879 32.08 1483.98 1024.967 37.35 37.17 9.193 3.45318 5.04962 32.08 1483.94 1024.974 37.65 37.47 9.180 3.45453 5.05338 32.11 1483.93 1024.996 37.95 37.77 9.176 3.45623 5.05651 32.13 1483.95 1025.015 38.24 38.06 9.181 3.45758 5.05779 32.14 1483.98 1025.023