*2026/01/16 09:57:57.93 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/11 17:31:50.000 END TIME : UTC 2024/12/11 17:32:06.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 82 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.41 2 Depth metres 0.15 24.32 3 Temperature 'deg C (ITS90)' 9.288 10.123 4 Conductivity S/m 3.08445 3.36709 5 Conductance:Specific S/m 4.49782 4.79392 6 Salinity PSS-78 28.25 30.41 7 Speed:Sound m/s 1479 1485.08 8 Density kg/m^3 1021.796 1023.459 $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 : 337 LATITUDE : 49 49.12540 N ! (deg min) LONGITUDE : 126 59.53280 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241211_173150 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:11 82 82 MERGEHDR 1.3 2026/01/16 09:54:15 82 82 HDREDIT2 3.2 2026/01/16 09:55:17 ? ? REMOVECH 8.2 2026/01/16 09:56:27 82 82 CALIB 12.1 2026/01/16 09:57:00 82 82 CLEAN 5.3 2026/01/16 09:57:57 82 82 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:17 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 09:56:27 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:57:00 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 9.288 3.08445 4.49782 28.25 1479.00 1021.796 0.45 0.45 9.302 3.09386 4.50975 28.33 1479.16 1021.861 0.75 0.75 9.342 3.10569 4.52166 28.42 1479.42 1021.924 1.05 1.05 9.392 3.13442 4.55691 28.67 1479.92 1022.114 1.35 1.35 9.426 3.15684 4.58494 28.87 1480.29 1022.266 1.65 1.65 9.452 3.16535 4.59391 28.94 1480.47 1022.314 1.95 1.94 9.442 3.17258 4.60563 29.02 1480.54 1022.380 2.25 2.24 9.455 3.18476 4.62161 29.13 1480.73 1022.467 2.55 2.54 9.486 3.19784 4.63643 29.24 1480.98 1022.547 2.85 2.84 9.536 3.20403 4.63864 29.26 1481.20 1022.558 3.15 3.14 9.588 3.21265 4.64411 29.30 1481.45 1022.586 3.45 3.44 9.609 3.22741 4.66264 29.43 1481.69 1022.687 3.75 3.74 9.638 3.23630 4.67160 29.50 1481.88 1022.735 4.05 4.04 9.658 3.24401 4.67997 29.56 1482.03 1022.781 4.35 4.34 9.666 3.24498 4.68035 29.56 1482.07 1022.784 4.65 4.64 9.673 3.24545 4.68013 29.56 1482.10 1022.784 4.95 4.93 9.679 3.24601 4.68007 29.56 1482.13 1022.784 5.25 5.23 9.682 3.24644 4.68030 29.57 1482.15 1022.786 5.55 5.53 9.684 3.24685 4.68060 29.57 1482.16 1022.789 5.85 5.83 9.689 3.24757 4.68099 29.57 1482.19 1022.792 6.15 6.13 9.689 3.24856 4.68238 29.58 1482.21 1022.801 6.45 6.43 9.690 3.24908 4.68297 29.58 1482.22 1022.806 6.75 6.73 9.690 3.24903 4.68289 29.58 1482.22 1022.806 7.05 7.03 9.692 3.24889 4.68249 29.58 1482.23 1022.805 7.35 7.33 9.689 3.24954 4.68382 29.59 1482.24 1022.814 7.65 7.63 9.691 3.24975 4.68380 29.59 1482.25 1022.815 7.95 7.92 9.692 3.25031 4.68458 29.60 1482.26 1022.821 8.25 8.22 9.695 3.25001 4.68373 29.59 1482.27 1022.817 8.55 8.52 9.693 3.25044 4.68462 29.60 1482.28 1022.823 8.85 8.82 9.693 3.25250 4.68754 29.62 1482.31 1022.841 9.15 9.12 9.692 3.25376 4.68952 29.63 1482.32 1022.853 9.45 9.42 9.690 3.25425 4.69054 29.64 1482.33 1022.860 9.75 9.72 9.690 3.25401 4.69013 29.63 1482.33 1022.859 10.05 10.02 9.687 3.25395 4.69045 29.63 1482.33 1022.862 10.35 10.32 9.685 3.25521 4.69258 29.65 1482.34 1022.875 10.65 10.62 9.683 3.25595 4.69385 29.66 1482.35 1022.883 10.95 10.91 9.682 3.25863 4.69785 29.69 1482.39 1022.906 11.25 11.21 9.684 3.25896 4.69807 29.69 1482.40 1022.909 11.55 11.51 9.684 3.26075 4.70065 29.71 1482.43 1022.924 11.85 11.81 9.683 3.26138 4.70174 29.71 1482.44 1022.931 12.15 12.11 9.676 3.26229 4.70390 29.73 1482.44 1022.945 12.45 12.41 9.679 3.26122 4.70204 29.71 1482.43 1022.936 12.75 12.71 9.679 3.26232 4.70360 29.72 1482.45 1022.946 13.05 13.01 9.682 3.26362 4.70509 29.74 1482.48 1022.955 13.35 13.31 9.684 3.26465 4.70633 29.74 1482.50 1022.963 13.65 13.60 9.686 3.26855 4.71168 29.78 1482.56 1022.993 13.95 13.90 9.686 3.26784 4.71064 29.77 1482.56 1022.989 14.25 14.20 9.690 3.27024 4.71352 29.80 1482.60 1023.005 14.55 14.50 9.706 3.27614 4.71988 29.84 1482.72 1023.041 14.85 14.80 9.717 3.28145 4.72600 29.89 1482.82 1023.075 15.15 15.10 9.724 3.28503 4.73017 29.92 1482.89 1023.098 15.45 15.40 9.736 3.28719 4.73167 29.93 1482.95 1023.107 15.75 15.70 9.744 3.28984 4.73434 29.95 1483.01 1023.122 16.05 16.00 9.761 3.29706 4.74243 30.01 1483.15 1023.167 16.35 16.29 9.785 3.29915 4.74215 30.01 1483.24 1023.165 16.65 16.59 9.805 3.30098 4.74210 30.01 1483.32 1023.165 16.95 16.89 9.814 3.30240 4.74291 30.02 1483.37 1023.170 17.25 17.19 9.826 3.30464 4.74456 30.03 1483.43 1023.179 17.55 17.49 9.831 3.30543 4.74497 30.03 1483.46 1023.183 17.85 17.79 9.831 3.30516 4.74453 30.03 1483.46 1023.181 18.15 18.09 9.836 3.30632 4.74552 30.04 1483.50 1023.188 18.45 18.39 9.838 3.30693 4.74610 30.04 1483.51 1023.192 18.75 18.69 9.861 3.30841 4.74511 30.04 1483.60 1023.186 19.05 18.98 9.872 3.30846 4.74366 30.03 1483.63 1023.179 19.35 19.28 9.884 3.31041 4.74486 30.04 1483.69 1023.186 19.65 19.58 9.889 3.31132 4.74546 30.04 1483.72 1023.190 19.95 19.88 9.908 3.31582 4.74938 30.07 1483.83 1023.212 20.25 20.18 9.926 3.31691 4.74851 30.07 1483.89 1023.207 20.55 20.48 9.942 3.32158 4.75292 30.10 1484.00 1023.232 20.85 20.78 9.959 3.32557 4.75643 30.13 1484.10 1023.251 21.15 21.08 9.975 3.33234 4.76391 30.18 1484.23 1023.292 21.45 21.38 10.000 3.33625 4.76613 30.20 1484.34 1023.304 21.75 21.67 10.008 3.33857 4.76830 30.21 1484.40 1023.316 22.05 21.97 10.012 3.34183 4.77248 30.24 1484.45 1023.340 22.35 22.27 10.020 3.34507 4.77594 30.27 1484.52 1023.360 22.65 22.57 10.036 3.35068 4.78182 30.31 1484.63 1023.392 22.95 22.87 10.057 3.35582 4.78625 30.35 1484.76 1023.417 23.25 23.17 10.073 3.36245 4.79350 30.40 1484.88 1023.456 23.55 23.47 10.096 3.36327 4.79159 30.39 1484.96 1023.446 23.85 23.77 10.108 3.36444 4.79150 30.39 1485.01 1023.445 24.15 24.06 10.118 3.36709 4.79392 30.41 1485.07 1023.459 24.41 24.32 10.123 3.36632 4.79217 30.40 1485.08 1023.451