*2026/01/16 10:37:54.76 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 17:43:05.000 END TIME : UTC 2025/05/28 17:43:26.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 108 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.29 2 Depth metres 0.15 32.16 3 Temperature 'deg C (ITS90)' 10.105 11.937 4 Conductivity S/m 3.27799 3.51102 5 Conductance:Specific S/m 4.45956 4.9262 6 Salinity PSS-78 28.24 31.34 7 Speed:Sound m/s 1486.28 1488.95 8 Density kg/m^3 1021.392 1024.219 $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 : 163 LATITUDE : 49 52.27140 N ! (deg min) LONGITUDE : 126 44.85060 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_174305 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 108 108 MERGEHDR 1.3 2026/01/16 10:35:45 108 108 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:42 108 108 CALIB 12.1 2026/01/16 10:37:18 108 108 CLEAN 5.3 2026/01/16 10:37:54 108 108 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 11.563 3.29958 4.51214 28.59 1487.65 1021.696 0.45 0.45 11.752 3.27799 4.45956 28.24 1487.90 1021.392 0.75 0.75 11.937 3.30761 4.47741 28.38 1488.72 1021.471 1.05 1.05 11.931 3.31449 4.48744 28.45 1488.79 1021.528 1.35 1.35 11.691 3.33771 4.54834 28.86 1488.44 1021.886 1.65 1.65 11.551 3.37175 4.61237 29.30 1488.48 1022.250 1.95 1.95 11.598 3.38646 4.62659 29.40 1488.77 1022.325 2.25 2.24 11.463 3.40027 4.66268 29.64 1488.59 1022.536 2.55 2.54 11.384 3.40455 4.67858 29.74 1488.44 1022.632 2.85 2.84 11.313 3.40846 4.69321 29.84 1488.31 1022.720 3.15 3.14 11.276 3.41674 4.70933 29.95 1488.32 1022.813 3.45 3.44 11.249 3.41860 4.71545 29.99 1488.27 1022.851 3.75 3.74 11.214 3.42350 4.72675 30.07 1488.25 1022.917 4.05 4.04 11.190 3.43547 4.74647 30.20 1488.33 1023.028 4.35 4.34 11.185 3.44502 4.76025 30.30 1488.44 1023.106 4.65 4.64 11.166 3.44912 4.76848 30.35 1488.44 1023.154 4.95 4.93 11.148 3.45143 4.77403 30.39 1488.43 1023.187 5.25 5.23 11.142 3.45529 4.78022 30.43 1488.46 1023.223 5.55 5.53 11.142 3.45634 4.78160 30.44 1488.48 1023.232 5.85 5.83 11.146 3.45671 4.78157 30.44 1488.50 1023.233 6.15 6.13 11.145 3.45873 4.78448 30.47 1488.52 1023.250 6.45 6.43 11.145 3.46097 4.78760 30.49 1488.55 1023.268 6.75 6.73 11.143 3.46325 4.79106 30.51 1488.58 1023.289 7.05 7.03 11.154 3.47076 4.79999 30.58 1488.70 1023.338 7.35 7.33 11.162 3.48090 4.81290 30.67 1488.85 1023.410 7.65 7.62 11.163 3.48465 4.81800 30.70 1488.90 1023.439 7.95 7.92 11.153 3.48774 4.82354 30.74 1488.91 1023.471 8.25 8.22 11.152 3.48909 4.82555 30.76 1488.93 1023.484 8.55 8.52 11.148 3.48857 4.82535 30.75 1488.92 1023.484 8.85 8.82 11.147 3.48873 4.82578 30.76 1488.92 1023.488 9.15 9.12 11.147 3.49032 4.82794 30.77 1488.95 1023.501 9.45 9.42 11.140 3.48911 4.82726 30.77 1488.92 1023.499 9.75 9.72 11.126 3.48847 4.82818 30.77 1488.88 1023.507 10.05 10.01 11.114 3.48839 4.82974 30.78 1488.85 1023.518 10.35 10.31 11.104 3.48718 4.82936 30.78 1488.82 1023.518 10.65 10.61 11.099 3.48796 4.83106 30.79 1488.82 1023.529 10.95 10.91 11.080 3.48753 4.83308 30.80 1488.77 1023.543 11.25 11.21 11.047 3.48627 4.83568 30.81 1488.68 1023.561 11.55 11.51 11.015 3.48707 4.84107 30.85 1488.61 1023.595 11.85 11.81 11.001 3.48582 4.84122 30.85 1488.57 1023.598 12.15 12.11 10.994 3.49002 4.84805 30.90 1488.60 1023.638 12.45 12.40 10.986 3.49252 4.85266 30.93 1488.62 1023.665 12.75 12.70 10.978 3.49519 4.85745 30.96 1488.63 1023.693 13.05 13.00 10.969 3.49530 4.85870 30.97 1488.62 1023.702 13.35 13.30 10.957 3.49492 4.85989 30.97 1488.59 1023.711 13.65 13.60 10.943 3.49538 4.86242 30.99 1488.56 1023.728 13.95 13.90 10.928 3.49567 4.86476 31.01 1488.53 1023.743 14.25 14.20 10.904 3.49438 4.86628 31.01 1488.46 1023.755 14.55 14.50 10.882 3.49461 4.86952 31.03 1488.41 1023.776 14.85 14.79 10.871 3.49412 4.87037 31.04 1488.39 1023.782 15.15 15.09 10.864 3.49396 4.87111 31.04 1488.37 1023.788 15.45 15.39 10.865 3.49562 4.87334 31.06 1488.40 1023.802 15.75 15.69 10.882 3.49982 4.87689 31.09 1488.49 1023.821 16.05 15.99 10.922 3.51067 4.88654 31.16 1488.73 1023.872 16.35 16.29 10.939 3.51102 4.88466 31.15 1488.78 1023.862 16.65 16.59 10.873 3.50084 4.87954 31.10 1488.50 1023.840 16.95 16.89 10.797 3.49287 4.87868 31.09 1488.22 1023.843 17.25 17.18 10.771 3.49300 4.88241 31.11 1488.16 1023.867 17.55 17.48 10.746 3.49554 4.88942 31.16 1488.13 1023.909 17.85 17.78 10.731 3.49774 4.89457 31.19 1488.12 1023.940 18.15 18.08 10.717 3.49629 4.89441 31.19 1488.07 1023.941 18.45 18.38 10.700 3.49332 4.89259 31.17 1488.00 1023.934 18.75 18.68 10.688 3.49034 4.89012 31.16 1487.94 1023.922 19.05 18.98 10.664 3.48912 4.89166 31.16 1487.87 1023.934 19.35 19.27 10.646 3.48947 4.89465 31.18 1487.83 1023.953 19.65 19.57 10.635 3.48910 4.89557 31.19 1487.80 1023.960 19.95 19.87 10.621 3.48865 4.89696 31.20 1487.77 1023.970 20.25 20.17 10.609 3.48898 4.89905 31.21 1487.74 1023.984 20.55 20.47 10.593 3.48852 4.90062 31.22 1487.70 1023.995 20.85 20.77 10.565 3.48720 4.90260 31.23 1487.62 1024.010 21.15 21.07 10.536 3.48437 4.90264 31.22 1487.52 1024.013 21.45 21.36 10.521 3.48240 4.90186 31.22 1487.46 1024.011 21.75 21.66 10.503 3.48097 4.90243 31.22 1487.40 1024.017 22.05 21.96 10.481 3.48054 4.90473 31.23 1487.35 1024.033 22.35 22.26 10.458 3.47881 4.90560 31.24 1487.27 1024.041 22.65 22.56 10.431 3.47797 4.90814 31.25 1487.20 1024.058 22.95 22.86 10.396 3.47819 4.91330 31.28 1487.11 1024.090 23.25 23.16 10.370 3.47556 4.91314 31.28 1487.02 1024.092 23.55 23.46 10.350 3.47376 4.91335 31.28 1486.95 1024.096 23.85 23.75 10.334 3.47259 4.91391 31.28 1486.90 1024.102 24.15 24.05 10.310 3.47076 4.91465 31.28 1486.83 1024.109 24.45 24.35 10.294 3.47001 4.91589 31.29 1486.78 1024.118 24.75 24.65 10.283 3.46841 4.91515 31.28 1486.74 1024.116 25.05 24.95 10.283 3.46804 4.91456 31.28 1486.74 1024.114 25.35 25.25 10.272 3.46802 4.91611 31.29 1486.71 1024.125 25.65 25.55 10.258 3.46696 4.91652 31.29 1486.67 1024.129 25.95 25.84 10.242 3.46509 4.91608 31.28 1486.61 1024.129 26.25 26.14 10.225 3.46424 4.91731 31.29 1486.56 1024.138 26.55 26.44 10.205 3.46361 4.91923 31.30 1486.51 1024.152 26.85 26.74 10.193 3.46322 4.92027 31.31 1486.48 1024.159 27.15 27.04 10.178 3.46175 4.92037 31.30 1486.42 1024.162 27.45 27.34 10.176 3.46126 4.91995 31.30 1486.42 1024.161 27.75 27.64 10.178 3.46247 4.92136 31.31 1486.44 1024.170 28.05 27.93 10.158 3.46069 4.92160 31.31 1486.38 1024.174 28.35 28.23 10.149 3.46077 4.92302 31.32 1486.36 1024.184 28.65 28.53 10.142 3.46119 4.92455 31.33 1486.35 1024.194 28.95 28.83 10.140 3.46058 4.92396 31.32 1486.34 1024.192 29.25 29.13 10.141 3.46108 4.92452 31.33 1486.36 1024.196 29.55 29.43 10.141 3.46105 4.92451 31.33 1486.36 1024.198 29.85 29.73 10.142 3.46220 4.92606 31.34 1486.38 1024.207 30.15 30.02 10.143 3.46019 4.92306 31.32 1486.36 1024.192 30.45 30.32 10.138 3.46098 4.92479 31.33 1486.37 1024.203 30.75 30.62 10.131 3.45874 4.92257 31.31 1486.33 1024.193 31.05 30.92 10.123 3.45910 4.92432 31.32 1486.31 1024.204 31.35 31.22 10.119 3.45970 4.92568 31.33 1486.32 1024.213 31.65 31.52 10.117 3.45900 4.92493 31.33 1486.31 1024.210 31.95 31.82 10.105 3.45866 4.92620 31.33 1486.28 1024.219 32.29 32.16 10.112 3.45818 4.92456 31.32 1486.29 1024.211