*2026/01/16 09:57:52.73 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/09 22:12:53.000 END TIME : UTC 2024/07/09 22:13:12.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 99 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.56 2 Depth metres 0.15 29.41 3 Temperature 'deg C (ITS90)' 9.656 15.139 4 Conductivity S/m 3.5338 3.94756 5 Conductance:Specific S/m 4.9135 5.10011 6 Salinity PSS-78 31.66 32.51 7 Speed:Sound m/s 1486.03 1503.36 8 Density kg/m^3 1023.453 1025.196 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 169 LATITUDE : 49 48.25490 N ! (deg min) LONGITUDE : 127 2.85520 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240709_221253 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 99 99 MERGEHDR 1.3 2026/01/16 09:53:56 99 99 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 99 99 CALIB 12.1 2026/01/16 09:56:52 99 99 CLEAN 5.3 2026/01/16 09:57:52 99 99 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 09:57:46 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 15.139 3.94756 4.91740 31.77 1503.36 1023.453 0.45 0.45 14.944 3.93543 4.92615 31.82 1502.80 1023.534 0.75 0.75 14.429 3.88255 4.92344 31.76 1501.08 1023.599 1.05 1.05 14.041 3.83660 4.91350 31.66 1499.70 1023.602 1.35 1.34 13.622 3.80384 4.92446 31.70 1498.38 1023.722 1.65 1.64 13.156 3.75776 4.92417 31.66 1496.79 1023.783 1.95 1.94 13.000 3.74687 4.93005 31.69 1496.30 1023.836 2.25 2.24 12.903 3.74493 4.94016 31.75 1496.05 1023.905 2.55 2.54 12.803 3.74223 4.94970 31.81 1495.79 1023.971 2.85 2.84 12.666 3.74173 4.96697 31.92 1495.47 1024.084 3.15 3.14 12.534 3.72551 4.96280 31.88 1494.97 1024.078 3.45 3.43 12.384 3.70826 4.95965 31.84 1494.42 1024.079 3.75 3.73 12.231 3.69846 4.96690 31.87 1493.95 1024.137 4.05 4.03 12.130 3.68916 4.96786 31.87 1493.60 1024.155 4.35 4.33 12.016 3.67972 4.97038 31.88 1493.22 1024.182 4.65 4.63 11.912 3.67646 4.98007 31.94 1492.94 1024.248 4.95 4.93 11.833 3.67247 4.98533 31.96 1492.70 1024.286 5.25 5.23 11.737 3.66783 4.99196 32.00 1492.42 1024.334 5.55 5.52 11.668 3.66397 4.99608 32.02 1492.21 1024.365 5.85 5.82 11.602 3.65981 4.99940 32.04 1492.01 1024.391 6.15 6.12 11.545 3.65664 5.00290 32.06 1491.84 1024.417 6.45 6.42 11.503 3.65117 5.00119 32.04 1491.68 1024.412 6.75 6.72 11.459 3.64730 5.00198 32.04 1491.53 1024.422 7.05 7.02 11.338 3.64321 5.01291 32.11 1491.19 1024.495 7.35 7.32 11.186 3.63267 5.01940 32.13 1490.70 1024.546 7.65 7.61 11.171 3.63037 5.01828 32.13 1490.64 1024.542 7.95 7.91 11.162 3.62417 5.01106 32.07 1490.54 1024.505 8.25 8.21 11.103 3.61788 5.01054 32.06 1490.33 1024.508 8.55 8.51 11.029 3.61217 5.01281 32.07 1490.08 1024.528 8.85 8.81 10.893 3.60728 5.02512 32.14 1489.69 1024.609 9.15 9.11 10.812 3.60433 5.03229 32.18 1489.46 1024.657 9.45 9.41 10.777 3.60474 5.03776 32.22 1489.38 1024.691 9.75 9.70 10.734 3.60109 5.03868 32.22 1489.24 1024.701 10.05 10.00 10.714 3.59688 5.03571 32.19 1489.14 1024.687 10.35 10.30 10.664 3.59351 5.03804 32.20 1488.98 1024.705 10.65 10.60 10.637 3.59250 5.04047 32.22 1488.91 1024.722 10.95 10.90 10.614 3.59221 5.04332 32.24 1488.85 1024.741 11.25 11.20 10.594 3.59080 5.04408 32.24 1488.79 1024.748 11.55 11.49 10.564 3.58981 5.04701 32.26 1488.71 1024.767 11.85 11.79 10.496 3.58354 5.04773 32.25 1488.47 1024.778 12.15 12.09 10.482 3.58330 5.04943 32.26 1488.43 1024.789 12.45 12.39 10.466 3.58015 5.04724 32.24 1488.36 1024.780 12.75 12.69 10.443 3.57759 5.04698 32.24 1488.28 1024.781 13.05 12.99 10.413 3.57663 5.04994 32.26 1488.19 1024.801 13.35 13.28 10.371 3.57559 5.05444 32.28 1488.08 1024.830 13.65 13.58 10.352 3.57467 5.05586 32.29 1488.03 1024.841 13.95 13.88 10.349 3.57443 5.05584 32.29 1488.02 1024.842 14.25 14.18 10.340 3.57494 5.05788 32.30 1488.01 1024.855 14.55 14.48 10.334 3.57365 5.05690 32.30 1487.98 1024.851 14.85 14.78 10.323 3.57327 5.05795 32.30 1487.96 1024.859 15.15 15.08 10.310 3.57216 5.05823 32.30 1487.92 1024.863 15.45 15.37 10.303 3.57156 5.05843 32.30 1487.89 1024.866 15.75 15.67 10.291 3.57117 5.05956 32.31 1487.86 1024.874 16.05 15.97 10.295 3.57170 5.05985 32.31 1487.88 1024.877 16.35 16.27 10.292 3.57202 5.06064 32.32 1487.89 1024.883 16.65 16.57 10.291 3.57264 5.06163 32.32 1487.90 1024.890 16.95 16.87 10.275 3.57120 5.06196 32.32 1487.84 1024.894 17.25 17.16 10.262 3.56882 5.06039 32.31 1487.79 1024.887 17.55 17.46 10.234 3.56747 5.06254 32.32 1487.70 1024.902 17.85 17.76 10.194 3.56532 5.06520 32.34 1487.58 1024.921 18.15 18.06 10.185 3.56384 5.06443 32.33 1487.55 1024.919 18.45 18.36 10.179 3.56278 5.06385 32.32 1487.52 1024.917 18.75 18.66 10.165 3.56207 5.06476 32.33 1487.48 1024.924 19.05 18.95 10.143 3.56161 5.06736 32.34 1487.43 1024.941 19.35 19.25 10.129 3.56126 5.06877 32.35 1487.39 1024.951 19.65 19.55 10.119 3.56044 5.06912 32.35 1487.36 1024.955 19.95 19.85 10.083 3.55781 5.07050 32.36 1487.24 1024.966 20.25 20.15 10.071 3.55706 5.07117 32.36 1487.21 1024.972 20.55 20.45 10.043 3.55636 5.07430 32.38 1487.13 1024.993 20.85 20.74 10.030 3.55467 5.07369 32.37 1487.09 1024.991 21.15 21.04 10.017 3.55539 5.07661 32.39 1487.07 1025.009 21.45 21.34 9.985 3.55232 5.07689 32.39 1486.95 1025.014 21.75 21.64 9.949 3.54933 5.07787 32.39 1486.83 1025.023 22.05 21.94 9.915 3.54780 5.08068 32.41 1486.73 1025.042 22.35 22.24 9.897 3.54616 5.08085 32.41 1486.67 1025.045 22.65 22.53 9.864 3.54468 5.08360 32.42 1486.57 1025.064 22.95 22.83 9.842 3.54313 5.08463 32.42 1486.50 1025.072 23.25 23.13 9.823 3.54283 5.08685 32.44 1486.46 1025.087 23.55 23.43 9.812 3.54289 5.08854 32.45 1486.43 1025.098 23.85 23.73 9.809 3.54347 5.08993 32.46 1486.44 1025.107 24.15 24.03 9.808 3.54321 5.08971 32.46 1486.43 1025.107 24.45 24.32 9.801 3.54299 5.09042 32.46 1486.42 1025.113 24.75 24.62 9.797 3.54253 5.09035 32.46 1486.41 1025.114 25.05 24.92 9.798 3.54288 5.09057 32.46 1486.42 1025.116 25.35 25.22 9.793 3.54262 5.09099 32.46 1486.41 1025.120 25.65 25.52 9.788 3.54169 5.09040 32.46 1486.39 1025.119 25.95 25.82 9.789 3.54181 5.09035 32.46 1486.40 1025.120 26.25 26.11 9.779 3.54199 5.09211 32.47 1486.38 1025.131 26.55 26.41 9.768 3.54098 5.09229 32.47 1486.34 1025.134 26.85 26.71 9.770 3.54029 5.09098 32.46 1486.35 1025.128 27.15 27.01 9.763 3.54065 5.09262 32.47 1486.34 1025.139 27.45 27.31 9.758 3.53895 5.09085 32.46 1486.31 1025.130 27.75 27.61 9.750 3.53798 5.09067 32.45 1486.28 1025.131 28.05 27.90 9.735 3.53618 5.09030 32.45 1486.22 1025.131 28.35 28.20 9.717 3.53536 5.09168 32.46 1486.17 1025.141 28.65 28.50 9.690 3.53460 5.09455 32.47 1486.10 1025.160 28.95 28.80 9.674 3.53468 5.09697 32.49 1486.07 1025.175 29.25 29.10 9.664 3.53380 5.09723 32.49 1486.03 1025.179 29.56 29.41 9.656 3.53501 5.10011 32.51 1486.03 1025.196