*2026/01/16 10:37:53.56 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 16:38:37.000 END TIME : UTC 2025/05/08 16:39:03.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 131 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.12 2 Depth metres 0.15 38.93 3 Temperature 'deg C (ITS90)' 8.456 11.065 4 Conductivity S/m 3.37586 3.44963 5 Conductance:Specific S/m 4.77372 5.06044 6 Salinity PSS-78 30.38 32.05 7 Speed:Sound m/s 1481.15 1488.08 8 Density kg/m^3 1023.174 1025.068 $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 : 134 LATITUDE : 48 52.81700 N ! (deg min) LONGITUDE : 125 17.71300 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_163837 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 131 131 MERGEHDR 1.3 2026/01/16 10:35:43 131 131 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 131 131 CALIB 12.1 2026/01/16 10:37:16 131 131 CLEAN 5.3 2026/01/16 10:37:53 131 131 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:14 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 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 11.049 3.44266 4.77495 30.39 1487.99 1023.181 0.45 0.45 11.065 3.44328 4.77372 30.38 1488.05 1023.174 0.75 0.75 11.057 3.44416 4.77596 30.40 1488.04 1023.188 1.05 1.05 11.038 3.44319 4.77713 30.40 1487.99 1023.198 1.35 1.35 11.023 3.44240 4.77803 30.41 1487.94 1023.205 1.65 1.64 11.028 3.44468 4.78056 30.43 1487.99 1023.220 1.95 1.94 11.041 3.44722 4.78231 30.44 1488.06 1023.229 2.25 2.24 11.039 3.44917 4.78539 30.46 1488.08 1023.248 2.55 2.54 11.023 3.44950 4.78797 30.48 1488.05 1023.265 2.85 2.84 11.013 3.44963 4.78940 30.49 1488.03 1023.275 3.15 3.14 11.003 3.44953 4.79061 30.49 1488.01 1023.283 3.45 3.44 10.993 3.44932 4.79169 30.50 1487.98 1023.292 3.75 3.74 10.979 3.44864 4.79255 30.51 1487.94 1023.299 4.05 4.03 10.961 3.44917 4.79573 30.53 1487.91 1023.319 4.35 4.33 10.937 3.44879 4.79839 30.54 1487.85 1023.337 4.65 4.63 10.897 3.44678 4.80100 30.56 1487.73 1023.356 4.95 4.93 10.849 3.44488 4.80472 30.58 1487.59 1023.382 5.25 5.23 10.806 3.44388 4.80908 30.60 1487.47 1023.410 5.55 5.53 10.739 3.44076 4.81376 30.63 1487.27 1023.443 5.85 5.83 10.643 3.44000 4.82569 30.70 1487.01 1023.517 6.15 6.13 10.538 3.43600 4.83426 30.75 1486.70 1023.574 6.45 6.43 10.388 3.43366 4.85149 30.85 1486.29 1023.681 6.75 6.72 10.281 3.42579 4.85508 30.86 1485.93 1023.710 7.05 7.02 10.093 3.41635 4.86761 30.93 1485.33 1023.793 7.35 7.32 9.859 3.41110 4.89269 31.08 1484.67 1023.947 7.65 7.62 9.756 3.40608 4.89995 31.12 1484.34 1023.995 7.95 7.92 9.669 3.40516 4.91093 31.18 1484.11 1024.062 8.25 8.22 9.562 3.40513 4.92611 31.27 1483.84 1024.152 8.55 8.52 9.498 3.40423 4.93401 31.32 1483.66 1024.200 8.85 8.81 9.468 3.40368 4.93747 31.34 1483.58 1024.222 9.15 9.11 9.436 3.40357 4.94191 31.37 1483.50 1024.250 9.45 9.41 9.407 3.40306 4.94527 31.39 1483.43 1024.271 9.75 9.71 9.386 3.40181 4.94656 31.39 1483.36 1024.281 10.05 10.01 9.357 3.40207 4.95103 31.42 1483.29 1024.308 10.35 10.31 9.334 3.40206 4.95442 31.44 1483.24 1024.329 10.65 10.61 9.317 3.40178 4.95645 31.45 1483.19 1024.342 10.95 10.90 9.300 3.40106 4.95776 31.46 1483.15 1024.351 11.25 11.20 9.285 3.40076 4.95950 31.47 1483.11 1024.363 11.55 11.50 9.277 3.40114 4.96121 31.48 1483.10 1024.374 11.85 11.80 9.271 3.40140 4.96247 31.49 1483.09 1024.383 12.15 12.10 9.271 3.40139 4.96248 31.49 1483.09 1024.384 12.45 12.40 9.267 3.40051 4.96178 31.48 1483.08 1024.381 12.75 12.70 9.258 3.40101 4.96387 31.50 1483.06 1024.395 13.05 12.99 9.252 3.40120 4.96494 31.50 1483.06 1024.402 13.35 13.29 9.244 3.40031 4.96484 31.50 1483.03 1024.403 13.65 13.59 9.236 3.40019 4.96579 31.51 1483.01 1024.410 13.95 13.89 9.223 3.40004 4.96748 31.52 1482.98 1024.421 14.25 14.19 9.203 3.39899 4.96881 31.52 1482.92 1024.431 14.55 14.49 9.190 3.39880 4.97051 31.53 1482.88 1024.442 14.85 14.79 9.176 3.39748 4.97060 31.53 1482.84 1024.444 15.15 15.08 9.153 3.39735 4.97365 31.55 1482.78 1024.464 15.45 15.38 9.136 3.39601 4.97426 31.55 1482.72 1024.469 15.75 15.68 9.120 3.39521 4.97539 31.56 1482.68 1024.477 16.05 15.98 9.103 3.39424 4.97642 31.56 1482.62 1024.485 16.35 16.28 9.080 3.39394 4.97931 31.58 1482.57 1024.503 16.65 16.58 9.057 3.39308 4.98149 31.59 1482.50 1024.517 16.95 16.88 9.035 3.39164 4.98258 31.60 1482.43 1024.526 17.25 17.17 9.017 3.38972 4.98236 31.59 1482.36 1024.526 17.55 17.47 8.999 3.38891 4.98378 31.60 1482.31 1024.536 17.85 17.77 8.986 3.38872 4.98552 31.61 1482.27 1024.548 18.15 18.07 8.971 3.38768 4.98613 31.61 1482.23 1024.553 18.45 18.37 8.956 3.38685 4.98714 31.62 1482.18 1024.560 18.75 18.67 8.944 3.38701 4.98918 31.63 1482.16 1024.573 19.05 18.96 8.936 3.38715 4.99044 31.64 1482.14 1024.582 19.35 19.26 8.934 3.38702 4.99061 31.64 1482.14 1024.584 19.65 19.56 8.928 3.38661 4.99088 31.64 1482.13 1024.587 19.95 19.86 8.917 3.38606 4.99164 31.64 1482.09 1024.593 20.25 20.16 8.910 3.38640 4.99324 31.65 1482.08 1024.603 20.55 20.46 8.902 3.38522 4.99259 31.64 1482.05 1024.601 20.85 20.76 8.891 3.38506 4.99401 31.65 1482.03 1024.611 21.15 21.05 8.878 3.38373 4.99398 31.65 1481.98 1024.612 21.45 21.35 8.855 3.38209 4.99498 31.65 1481.90 1024.620 21.75 21.65 8.835 3.38109 4.99645 31.66 1481.84 1024.630 22.05 21.95 8.822 3.38143 4.99889 31.68 1481.82 1024.645 22.35 22.25 8.806 3.38139 5.00120 31.69 1481.78 1024.660 22.65 22.55 8.798 3.38084 5.00160 31.69 1481.76 1024.664 22.95 22.84 8.786 3.37881 5.00032 31.68 1481.70 1024.658 23.25 23.14 8.767 3.37953 5.00415 31.71 1481.67 1024.681 23.55 23.44 8.740 3.37851 5.00670 31.72 1481.59 1024.698 23.85 23.74 8.715 3.37747 5.00886 31.73 1481.51 1024.712 24.15 24.04 8.699 3.37838 5.01256 31.75 1481.49 1024.734 24.45 24.34 8.691 3.37704 5.01172 31.75 1481.46 1024.731 24.75 24.64 8.683 3.37741 5.01356 31.76 1481.44 1024.742 25.05 24.93 8.675 3.37726 5.01450 31.76 1481.42 1024.749 25.35 25.23 8.667 3.37755 5.01604 31.77 1481.41 1024.759 25.65 25.53 8.665 3.37732 5.01603 31.77 1481.41 1024.760 25.95 25.83 8.659 3.37718 5.01675 31.78 1481.40 1024.766 26.25 26.13 8.657 3.37586 5.01505 31.76 1481.38 1024.758 26.55 26.43 8.655 3.37673 5.01662 31.78 1481.39 1024.768 26.85 26.72 8.651 3.37672 5.01722 31.78 1481.38 1024.773 27.15 27.02 8.645 3.37699 5.01862 31.79 1481.37 1024.782 27.45 27.32 8.642 3.37658 5.01842 31.79 1481.37 1024.782 27.75 27.62 8.638 3.37625 5.01847 31.78 1481.36 1024.784 28.05 27.92 8.635 3.37644 5.01925 31.79 1481.36 1024.789 28.35 28.22 8.633 3.37606 5.01903 31.79 1481.35 1024.789 28.65 28.52 8.630 3.37714 5.02104 31.80 1481.36 1024.802 28.95 28.81 8.629 3.37661 5.02039 31.80 1481.36 1024.800 29.25 29.11 8.629 3.37661 5.02042 31.80 1481.36 1024.801 29.55 29.41 8.628 3.37745 5.02179 31.81 1481.37 1024.810 29.85 29.71 8.625 3.37785 5.02280 31.81 1481.38 1024.817 30.15 30.01 8.623 3.37737 5.02244 31.81 1481.37 1024.816 30.45 30.31 8.618 3.37742 5.02329 31.81 1481.36 1024.822 30.75 30.60 8.612 3.37772 5.02461 31.82 1481.35 1024.831 31.05 30.90 8.606 3.37795 5.02576 31.83 1481.35 1024.839 31.35 31.20 8.595 3.37827 5.02790 31.84 1481.33 1024.852 31.65 31.50 8.587 3.37785 5.02848 31.85 1481.30 1024.857 31.95 31.80 8.579 3.37700 5.02842 31.84 1481.28 1024.858 32.25 32.10 8.560 3.37701 5.03132 31.86 1481.23 1024.876 32.55 32.39 8.545 3.37599 5.03200 31.86 1481.18 1024.881 32.85 32.69 8.536 3.37645 5.03411 31.88 1481.17 1024.895 33.15 32.99 8.530 3.37675 5.03546 31.89 1481.16 1024.903 33.45 33.29 8.524 3.37747 5.03745 31.90 1481.16 1024.916 33.75 33.59 8.517 3.37804 5.03937 31.91 1481.15 1024.928 34.05 33.89 8.515 3.37886 5.04079 31.92 1481.17 1024.937 34.35 34.19 8.511 3.37969 5.04259 31.93 1481.17 1024.948 34.65 34.48 8.507 3.38163 5.04609 31.96 1481.19 1024.969 34.95 34.78 8.510 3.38192 5.04619 31.96 1481.20 1024.971 35.25 35.08 8.521 3.38192 5.04441 31.95 1481.24 1024.962 35.55 35.38 8.520 3.38049 5.04256 31.93 1481.22 1024.953 35.85 35.68 8.514 3.38158 5.04500 31.95 1481.23 1024.968 36.15 35.98 8.510 3.38171 5.04588 31.95 1481.22 1024.974 36.45 36.27 8.497 3.38193 5.04811 31.97 1481.20 1024.988 36.75 36.57 8.484 3.38152 5.04951 31.98 1481.16 1024.997 37.05 36.87 8.472 3.38349 5.05418 32.01 1481.16 1025.025 37.35 37.17 8.475 3.38367 5.05409 32.01 1481.17 1025.025 37.65 37.47 8.477 3.38401 5.05422 32.01 1481.19 1025.027 37.95 37.77 8.470 3.38403 5.05540 32.01 1481.17 1025.035 38.25 38.06 8.465 3.38558 5.05840 32.03 1481.19 1025.053 38.55 38.36 8.461 3.38512 5.05837 32.03 1481.17 1025.054 38.85 38.66 8.459 3.38519 5.05866 32.04 1481.18 1025.057 39.12 38.93 8.456 3.38602 5.06044 32.05 1481.18 1025.068