*2026/01/16 10:37:54.26 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 17:01:17.000 END TIME : UTC 2025/05/27 17:01:37.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 104 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.12 2 Depth metres 0.15 31.01 3 Temperature 'deg C (ITS90)' 10.056 13.674 4 Conductivity S/m 2.30718 3.48349 5 Conductance:Specific S/m 2.9962 4.91875 6 Salinity PSS-78 18.32 31.28 7 Speed:Sound m/s 1482.26 1491.05 8 Density kg/m^3 1013.429 1024.177 $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 : 152 LATITUDE : 49 43.79210 N ! (deg min) LONGITUDE : 126 27.28050 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_170117 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 104 104 MERGEHDR 1.3 2026/01/16 10:35:44 104 104 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 104 104 CALIB 12.1 2026/01/16 10:37:17 104 104 CLEAN 5.3 2026/01/16 10:37:54 104 104 $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 13.502 2.30718 2.99620 18.32 1482.26 1013.429 0.45 0.45 13.657 2.39800 3.10163 19.04 1483.64 1013.953 0.75 0.75 13.674 2.52056 3.25870 20.10 1484.94 1014.766 1.05 1.06 13.565 2.56917 3.33096 20.58 1485.14 1015.160 1.35 1.36 13.602 2.61729 3.39013 20.98 1485.74 1015.465 1.65 1.66 13.533 2.69020 3.49079 21.67 1486.31 1016.003 1.95 1.96 13.525 2.76337 3.58642 22.32 1487.05 1016.509 2.25 2.26 13.629 2.82176 3.65238 22.78 1487.95 1016.844 2.55 2.56 13.587 2.86327 3.71012 23.17 1488.27 1017.156 2.85 2.86 13.385 2.96013 3.85586 24.16 1488.75 1017.959 3.15 3.16 13.131 3.12373 4.09603 25.81 1489.83 1019.278 3.45 3.46 12.971 3.24933 4.27867 27.07 1490.78 1020.284 3.75 3.76 12.753 3.32471 4.40324 27.93 1491.05 1020.987 4.05 4.06 12.490 3.37069 4.49548 28.56 1490.90 1021.521 4.35 4.36 12.290 3.40301 4.56284 29.01 1490.76 1021.913 4.65 4.66 12.041 3.41995 4.61646 29.37 1490.32 1022.234 4.95 4.96 11.870 3.44163 4.66729 29.71 1490.14 1022.532 5.25 5.26 11.783 3.44909 4.68839 29.85 1490.01 1022.658 5.55 5.56 11.685 3.45415 4.70781 29.98 1489.83 1022.775 5.85 5.85 11.586 3.45618 4.72336 30.08 1489.61 1022.872 6.15 6.15 11.504 3.46648 4.74805 30.25 1489.52 1023.016 6.45 6.45 11.441 3.46862 4.75925 30.32 1489.39 1023.085 6.75 6.75 11.394 3.46838 4.76502 30.35 1489.28 1023.123 7.05 7.05 11.340 3.46792 4.77155 30.39 1489.14 1023.165 7.35 7.35 11.281 3.46673 4.77757 30.43 1488.98 1023.205 7.65 7.65 11.257 3.46830 4.78291 30.47 1488.94 1023.237 7.95 7.95 11.200 3.47432 4.79879 30.57 1488.87 1023.331 8.25 8.25 11.119 3.47613 4.81203 30.66 1488.70 1023.412 8.55 8.54 11.096 3.47604 4.81497 30.67 1488.64 1023.432 8.85 8.84 11.066 3.47690 4.82024 30.71 1488.58 1023.465 9.15 9.14 11.025 3.47705 4.82594 30.74 1488.48 1023.501 9.45 9.44 11.003 3.47683 4.82852 30.76 1488.43 1023.518 9.75 9.74 10.980 3.47709 4.83198 30.78 1488.38 1023.541 10.05 10.04 10.943 3.47649 4.83616 30.81 1488.28 1023.568 10.35 10.34 10.913 3.47568 4.83900 30.82 1488.20 1023.587 10.65 10.64 10.892 3.47353 4.83879 30.82 1488.13 1023.589 10.95 10.93 10.884 3.47059 4.83591 30.80 1488.08 1023.575 11.25 11.23 10.873 3.47146 4.83854 30.82 1488.06 1023.592 11.55 11.53 10.869 3.47310 4.84142 30.83 1488.08 1023.609 11.85 11.83 10.861 3.47646 4.84712 30.87 1488.10 1023.643 12.15 12.13 10.859 3.47609 4.84691 30.87 1488.10 1023.643 12.45 12.43 10.865 3.47914 4.85026 30.90 1488.15 1023.662 12.75 12.73 10.869 3.48285 4.85497 30.93 1488.21 1023.689 13.05 13.03 10.867 3.48330 4.85590 30.94 1488.22 1023.696 13.35 13.32 10.866 3.48319 4.85579 30.94 1488.22 1023.696 13.65 13.62 10.861 3.48204 4.85488 30.93 1488.20 1023.693 13.95 13.92 10.855 3.48284 4.85690 30.94 1488.20 1023.706 14.25 14.22 10.850 3.48341 4.85835 30.95 1488.19 1023.715 14.55 14.52 10.843 3.48349 4.85944 30.96 1488.18 1023.723 14.85 14.82 10.835 3.48224 4.85871 30.95 1488.15 1023.721 15.15 15.12 10.829 3.48124 4.85815 30.95 1488.13 1023.720 15.45 15.41 10.813 3.47851 4.85654 30.93 1488.06 1023.714 15.75 15.71 10.790 3.47817 4.85910 30.95 1488.00 1023.731 16.05 16.01 10.775 3.47730 4.86000 30.95 1487.96 1023.738 16.35 16.31 10.759 3.47732 4.86220 30.97 1487.92 1023.753 16.65 16.61 10.737 3.47587 4.86312 30.97 1487.86 1023.761 16.95 16.91 10.717 3.47515 4.86489 30.98 1487.80 1023.774 17.25 17.21 10.702 3.47406 4.86542 30.98 1487.75 1023.779 17.55 17.51 10.680 3.47422 4.86864 31.00 1487.70 1023.800 17.85 17.80 10.666 3.47399 4.87019 31.01 1487.67 1023.811 18.15 18.10 10.660 3.47338 4.87014 31.01 1487.65 1023.812 18.45 18.40 10.657 3.47372 4.87103 31.02 1487.66 1023.819 18.75 18.70 10.655 3.47380 4.87144 31.02 1487.66 1023.822 19.05 19.00 10.644 3.47346 4.87240 31.02 1487.63 1023.830 19.35 19.30 10.627 3.47173 4.87229 31.02 1487.57 1023.832 19.65 19.60 10.598 3.47150 4.87597 31.04 1487.50 1023.855 19.95 19.90 10.572 3.47032 4.87786 31.05 1487.42 1023.869 20.25 20.19 10.556 3.47015 4.87982 31.07 1487.38 1023.882 20.55 20.49 10.542 3.46998 4.88155 31.08 1487.35 1023.894 20.85 20.79 10.532 3.46927 4.88186 31.08 1487.32 1023.898 21.15 21.09 10.514 3.46800 4.88254 31.08 1487.27 1023.904 21.45 21.39 10.482 3.46758 4.88638 31.10 1487.18 1023.929 21.75 21.69 10.462 3.46733 4.88873 31.12 1487.14 1023.945 22.05 21.99 10.450 3.46665 4.88951 31.12 1487.10 1023.951 22.35 22.28 10.438 3.46591 4.89010 31.12 1487.07 1023.957 22.65 22.58 10.425 3.46488 4.89045 31.12 1487.02 1023.961 22.95 22.88 10.412 3.46401 4.89096 31.13 1486.99 1023.966 23.25 23.18 10.394 3.46323 4.89245 31.14 1486.93 1023.977 23.55 23.48 10.380 3.46297 4.89391 31.14 1486.90 1023.987 23.85 23.78 10.368 3.46226 4.89462 31.15 1486.87 1023.993 24.15 24.08 10.359 3.46238 4.89609 31.16 1486.85 1024.003 24.45 24.38 10.350 3.46250 4.89744 31.16 1486.83 1024.013 24.75 24.67 10.337 3.46184 4.89827 31.17 1486.80 1024.019 25.05 24.97 10.325 3.46076 4.89844 31.17 1486.76 1024.022 25.35 25.27 10.307 3.45930 4.89890 31.17 1486.70 1024.027 25.65 25.57 10.291 3.45838 4.89987 31.17 1486.65 1024.035 25.95 25.87 10.273 3.45806 4.90190 31.19 1486.60 1024.049 26.25 26.17 10.255 3.45737 4.90333 31.19 1486.56 1024.059 26.55 26.47 10.242 3.45680 4.90432 31.20 1486.52 1024.067 26.85 26.76 10.229 3.45627 4.90544 31.21 1486.48 1024.075 27.15 27.06 10.214 3.45478 4.90534 31.20 1486.43 1024.077 27.45 27.36 10.201 3.45512 4.90774 31.22 1486.41 1024.092 27.75 27.66 10.194 3.45485 4.90837 31.22 1486.39 1024.098 28.05 27.96 10.194 3.45438 4.90757 31.22 1486.39 1024.094 28.35 28.26 10.192 3.45476 4.90842 31.22 1486.40 1024.101 28.65 28.56 10.183 3.45297 4.90710 31.21 1486.36 1024.095 28.95 28.85 10.166 3.45187 4.90792 31.21 1486.30 1024.102 29.25 29.15 10.138 3.45069 4.91021 31.23 1486.22 1024.118 29.55 29.45 10.113 3.45024 4.91302 31.24 1486.16 1024.136 29.85 29.75 10.096 3.44968 4.91470 31.25 1486.11 1024.148 30.15 30.05 10.085 3.44930 4.91561 31.26 1486.08 1024.155 30.45 30.35 10.077 3.44858 4.91569 31.26 1486.06 1024.157 30.75 30.65 10.058 3.44884 4.91875 31.28 1486.02 1024.177 31.12 31.01 10.056 3.44816 4.91805 31.27 1486.01 1024.174