*2026/01/16 10:37:54.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 23:52:34.000 END TIME : UTC 2025/05/27 23:53:00.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 133 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.88 2 Depth metres 0.15 39.73 3 Temperature 'deg C (ITS90)' 9.602 13.207 4 Conductivity S/m 2.03481 3.54702 5 Conductance:Specific S/m 2.66288 4.9848 6 Salinity PSS-78 16.1 31.68 7 Speed:Sound m/s 1478.62 1490.2 8 Density kg/m^3 1011.766 1024.604 $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 : 161 LATITUDE : 49 39.67140 N ! (deg min) LONGITUDE : 126 28.42770 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_235234 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 133 133 MERGEHDR 1.3 2026/01/16 10:35:45 133 133 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 133 133 CALIB 12.1 2026/01/16 10:37:18 133 133 CLEAN 5.3 2026/01/16 10:37:54 133 133 $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 10:37:18 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 13.207 2.03481 2.66288 16.10 1478.62 1011.766 0.45 0.45 13.129 2.05844 2.69934 16.33 1478.63 1011.963 0.75 0.76 13.058 2.21931 2.91571 17.77 1480.07 1013.079 1.05 1.06 13.043 2.22576 2.92528 17.83 1480.10 1013.131 1.35 1.36 13.021 2.29218 3.01439 18.42 1480.73 1013.593 1.65 1.66 12.919 2.35132 3.10047 18.99 1481.05 1014.052 1.95 1.96 12.779 2.51375 3.32695 20.51 1482.35 1015.248 2.25 2.26 12.629 2.59378 3.44652 21.31 1482.78 1015.893 2.55 2.56 12.489 2.78806 3.71854 23.16 1484.48 1017.344 2.85 2.86 12.395 3.04432 4.07044 25.58 1487.02 1019.231 3.15 3.16 12.271 3.26374 4.37839 27.72 1489.13 1020.907 3.45 3.46 12.110 3.32551 4.48059 28.42 1489.41 1021.481 3.75 3.76 11.953 3.38004 4.57343 29.06 1489.63 1022.005 4.05 4.06 11.824 3.43946 4.67014 29.73 1489.99 1022.549 4.35 4.36 11.727 3.47351 4.72881 30.13 1490.14 1022.881 4.65 4.66 11.654 3.48838 4.75856 30.34 1490.13 1023.053 4.95 4.96 11.617 3.49571 4.77327 30.44 1490.13 1023.139 5.25 5.26 11.572 3.50746 4.79528 30.59 1490.15 1023.265 5.55 5.56 11.533 3.51606 4.81212 30.70 1490.16 1023.363 5.85 5.86 11.507 3.51973 4.82057 30.76 1490.14 1023.413 6.15 6.15 11.481 3.52327 4.82892 30.82 1490.12 1023.463 6.45 6.45 11.462 3.52650 4.83592 30.86 1490.12 1023.505 6.75 6.75 11.446 3.52858 4.84078 30.90 1490.11 1023.534 7.05 7.05 11.436 3.53169 4.84636 30.93 1490.13 1023.567 7.35 7.35 11.422 3.53492 4.85274 30.98 1490.13 1023.605 7.65 7.65 11.408 3.53694 4.85733 31.01 1490.13 1023.633 7.95 7.95 11.403 3.53714 4.85834 31.01 1490.12 1023.640 8.25 8.25 11.401 3.53772 4.85939 31.02 1490.13 1023.647 8.55 8.54 11.400 3.53853 4.86065 31.03 1490.14 1023.655 8.85 8.84 11.399 3.53986 4.86260 31.04 1490.16 1023.667 9.15 9.14 11.398 3.54083 4.86406 31.05 1490.17 1023.677 9.45 9.44 11.396 3.54061 4.86405 31.05 1490.17 1023.678 9.75 9.74 11.393 3.54061 4.86441 31.06 1490.16 1023.682 10.05 10.04 11.388 3.54187 4.86678 31.07 1490.17 1023.697 10.35 10.34 11.384 3.54360 4.86969 31.09 1490.19 1023.714 10.65 10.64 11.378 3.54533 4.87295 31.11 1490.20 1023.734 10.95 10.93 11.363 3.54629 4.87620 31.14 1490.18 1023.755 11.25 11.23 11.342 3.54702 4.88005 31.16 1490.14 1023.779 11.55 11.53 11.319 3.54628 4.88207 31.17 1490.08 1023.793 11.85 11.83 11.285 3.54354 4.88296 31.17 1489.96 1023.803 12.15 12.13 11.257 3.53813 4.87926 31.15 1489.83 1023.786 12.45 12.43 11.238 3.53575 4.87846 31.14 1489.76 1023.785 12.75 12.73 11.216 3.53402 4.87912 31.14 1489.69 1023.792 13.05 13.02 11.189 3.53323 4.88165 31.15 1489.62 1023.809 13.35 13.32 11.158 3.53135 4.88322 31.16 1489.52 1023.822 13.65 13.62 11.133 3.53143 4.88666 31.18 1489.47 1023.844 13.95 13.92 11.108 3.52991 4.88799 31.19 1489.39 1023.855 14.25 14.22 11.081 3.52809 4.88907 31.19 1489.31 1023.865 14.55 14.52 11.076 3.52357 4.88358 31.16 1489.25 1023.836 14.85 14.82 11.059 3.52784 4.89178 31.21 1489.26 1023.884 15.15 15.12 11.051 3.53126 4.89761 31.25 1489.28 1023.918 15.45 15.41 11.050 3.53244 4.89930 31.26 1489.30 1023.929 15.75 15.71 11.047 3.53335 4.90104 31.28 1489.31 1023.940 16.05 16.01 11.041 3.53198 4.89989 31.27 1489.28 1023.935 16.35 16.31 11.035 3.53243 4.90140 31.28 1489.28 1023.946 16.65 16.61 11.031 3.53209 4.90152 31.28 1489.27 1023.948 16.95 16.91 11.023 3.53172 4.90202 31.28 1489.25 1023.953 17.25 17.21 11.014 3.53076 4.90198 31.28 1489.22 1023.954 17.55 17.50 10.999 3.52985 4.90268 31.28 1489.18 1023.961 17.85 17.80 10.986 3.52840 4.90248 31.28 1489.13 1023.962 18.15 18.10 10.973 3.52792 4.90355 31.28 1489.10 1023.970 18.45 18.40 10.956 3.52715 4.90485 31.29 1489.05 1023.980 18.75 18.70 10.938 3.52396 4.90281 31.27 1488.97 1023.972 19.05 19.00 10.916 3.52185 4.90294 31.27 1488.89 1023.976 19.35 19.30 10.887 3.52070 4.90532 31.29 1488.81 1023.992 19.65 19.60 10.859 3.51975 4.90781 31.30 1488.74 1024.010 19.95 19.89 10.839 3.51961 4.91032 31.32 1488.69 1024.026 20.25 20.19 10.818 3.51835 4.91137 31.32 1488.63 1024.035 20.55 20.49 10.794 3.51654 4.91214 31.32 1488.55 1024.043 20.85 20.79 10.766 3.51472 4.91343 31.33 1488.46 1024.053 21.15 21.09 10.740 3.51043 4.91108 31.31 1488.35 1024.044 21.45 21.39 10.722 3.50698 4.90865 31.29 1488.27 1024.033 21.75 21.69 10.701 3.50680 4.91132 31.31 1488.22 1024.051 22.05 21.98 10.675 3.50553 4.91313 31.32 1488.14 1024.064 22.35 22.28 10.649 3.50172 4.91137 31.30 1488.03 1024.058 22.65 22.58 10.631 3.49994 4.91139 31.30 1487.97 1024.061 22.95 22.88 10.616 3.49915 4.91235 31.30 1487.93 1024.068 23.25 23.18 10.602 3.49795 4.91257 31.30 1487.88 1024.072 23.55 23.48 10.591 3.49826 4.91455 31.31 1487.86 1024.085 23.85 23.78 10.584 3.49745 4.91441 31.31 1487.84 1024.086 24.15 24.07 10.576 3.49774 4.91585 31.32 1487.83 1024.096 24.45 24.37 10.566 3.49676 4.91580 31.32 1487.80 1024.097 24.75 24.67 10.556 3.49600 4.91617 31.32 1487.77 1024.101 25.05 24.97 10.548 3.49523 4.91618 31.32 1487.74 1024.103 25.35 25.27 10.538 3.49432 4.91628 31.32 1487.71 1024.106 25.65 25.57 10.529 3.49432 4.91751 31.33 1487.69 1024.115 25.95 25.87 10.516 3.49334 4.91801 31.33 1487.65 1024.120 26.25 26.16 10.504 3.49345 4.91980 31.34 1487.63 1024.132 26.55 26.46 10.491 3.49327 4.92141 31.35 1487.60 1024.143 26.85 26.76 10.472 3.49141 4.92130 31.35 1487.53 1024.145 27.15 27.06 10.440 3.48820 4.92134 31.34 1487.41 1024.149 27.45 27.36 10.397 3.48463 4.92216 31.34 1487.27 1024.158 27.75 27.66 10.370 3.47960 4.91890 31.32 1487.14 1024.143 28.05 27.96 10.348 3.47742 4.91880 31.31 1487.07 1024.145 28.35 28.25 10.299 3.47292 4.91924 31.31 1486.89 1024.153 28.65 28.55 10.243 3.47084 4.92420 31.34 1486.73 1024.185 28.95 28.85 10.207 3.46955 4.92730 31.36 1486.62 1024.206 29.25 29.15 10.180 3.46759 4.92840 31.36 1486.53 1024.215 29.55 29.45 10.158 3.46788 4.93188 31.38 1486.49 1024.237 29.85 29.75 10.132 3.46625 4.93316 31.39 1486.41 1024.247 30.15 30.05 10.112 3.46562 4.93509 31.40 1486.35 1024.260 30.45 30.34 10.098 3.46382 4.93453 31.39 1486.30 1024.260 30.75 30.64 10.075 3.46314 4.93673 31.41 1486.24 1024.274 31.05 30.94 10.052 3.46275 4.93952 31.42 1486.18 1024.293 31.35 31.24 10.033 3.46309 4.94262 31.44 1486.14 1024.312 31.65 31.54 10.017 3.46280 4.94447 31.45 1486.10 1024.325 31.95 31.84 9.998 3.46194 4.94597 31.46 1486.04 1024.335 32.25 32.14 9.969 3.46080 4.94836 31.47 1485.96 1024.352 32.55 32.43 9.938 3.45831 4.94916 31.47 1485.85 1024.359 32.85 32.73 9.917 3.45657 4.94975 31.48 1485.78 1024.365 33.15 33.03 9.892 3.45410 4.94972 31.47 1485.69 1024.368 33.45 33.33 9.870 3.45373 4.95228 31.49 1485.64 1024.385 33.75 33.63 9.844 3.45221 4.95378 31.49 1485.56 1024.396 34.05 33.93 9.816 3.45117 4.95635 31.51 1485.47 1024.413 34.35 34.23 9.792 3.45072 4.95903 31.52 1485.41 1024.430 34.65 34.52 9.764 3.44990 4.96194 31.54 1485.33 1024.449 34.95 34.82 9.734 3.44772 4.96302 31.55 1485.24 1024.458 35.25 35.12 9.707 3.44541 4.96355 31.55 1485.14 1024.464 35.55 35.42 9.686 3.44329 4.96349 31.54 1485.07 1024.466 35.85 35.72 9.675 3.44324 4.96497 31.55 1485.04 1024.476 36.15 36.02 9.671 3.44212 4.96398 31.54 1485.02 1024.472 36.45 36.32 9.657 3.44181 4.96553 31.55 1484.99 1024.483 36.75 36.61 9.635 3.44220 4.96922 31.58 1484.94 1024.506 37.05 36.91 9.617 3.44451 4.97513 31.61 1484.93 1024.540 37.35 37.21 9.605 3.44483 4.97733 31.63 1484.90 1024.554 37.65 37.51 9.602 3.44667 4.98048 31.65 1484.92 1024.573 37.95 37.81 9.602 3.44662 4.98033 31.65 1484.93 1024.574 38.25 38.11 9.606 3.44776 4.98152 31.66 1484.96 1024.581 38.55 38.40 9.611 3.44825 4.98147 31.66 1484.98 1024.582 38.85 38.70 9.618 3.44936 4.98208 31.66 1485.02 1024.586 39.15 39.00 9.621 3.45067 4.98349 31.67 1485.05 1024.595 39.45 39.30 9.632 3.45202 4.98391 31.68 1485.10 1024.598 39.88 39.73 9.642 3.45367 4.98480 31.68 1485.15 1024.604