*2026/01/16 09:57:48.93 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/23 22:13:40.000 END TIME : UTC 2024/04/23 22:13:59.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 100 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.9 2 Depth metres 0.15 29.77 3 Temperature 'deg C (ITS90)' 9.926 13.744 4 Conductivity S/m 3.40207 3.49944 5 Conductance:Specific S/m 4.43006 5.00632 6 Salinity PSS-78 28.19 31.88 7 Speed:Sound m/s 1485.35 1494.68 8 Density kg/m^3 1020.992 1024.661 $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 : 80 LATITUDE : 48 59.49920 N ! (deg min) LONGITUDE : 125 20.29000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240423_221340 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 100 100 MERGEHDR 1.3 2026/01/16 09:53:49 100 100 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 100 100 CALIB 12.1 2026/01/16 09:56:48 100 100 CLEAN 5.3 2026/01/16 09:57:48 100 100 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 13.744 3.43572 4.43385 28.22 1494.68 1021.008 0.45 0.45 13.719 3.43053 4.43006 28.19 1494.57 1020.992 0.75 0.75 13.486 3.41340 4.43465 28.21 1493.81 1021.051 1.05 1.05 13.302 3.40443 4.44420 28.26 1493.26 1021.128 1.35 1.35 13.072 3.40207 4.46798 28.41 1492.67 1021.289 1.65 1.65 12.787 3.40271 4.50250 28.63 1491.96 1021.514 1.95 1.95 12.573 3.40713 4.53404 28.84 1491.48 1021.713 2.25 2.25 12.314 3.40900 4.56800 29.05 1490.85 1021.929 2.55 2.55 12.051 3.40982 4.60154 29.27 1490.20 1022.143 2.85 2.84 11.896 3.40784 4.61823 29.37 1489.79 1022.252 3.15 3.14 11.760 3.41009 4.63830 29.50 1489.47 1022.377 3.45 3.44 11.649 3.41058 4.65307 29.59 1489.20 1022.471 3.75 3.74 11.565 3.40962 4.66243 29.65 1488.98 1022.531 4.05 4.04 11.504 3.40900 4.66940 29.69 1488.82 1022.577 4.35 4.34 11.461 3.40930 4.67533 29.73 1488.72 1022.615 4.65 4.64 11.421 3.40934 4.68050 29.76 1488.62 1022.648 4.95 4.94 11.351 3.40771 4.68716 29.80 1488.43 1022.692 5.25 5.24 11.325 3.40852 4.69176 29.83 1488.38 1022.721 5.55 5.54 11.287 3.41059 4.69946 29.88 1488.31 1022.768 5.85 5.83 11.240 3.41137 4.70658 29.93 1488.21 1022.813 6.15 6.13 11.185 3.41316 4.71620 29.99 1488.09 1022.872 6.45 6.43 11.156 3.41435 4.72172 30.02 1488.03 1022.906 6.75 6.73 11.093 3.41691 4.73347 30.10 1487.91 1022.977 7.05 7.03 11.024 3.41836 4.74457 30.17 1487.75 1023.046 7.35 7.33 10.958 3.42049 4.75623 30.24 1487.61 1023.116 7.65 7.63 10.861 3.42178 4.77082 30.34 1487.39 1023.206 7.95 7.93 10.758 3.42428 4.78817 30.45 1487.16 1023.311 8.25 8.23 10.693 3.42623 4.79962 30.52 1487.02 1023.380 8.55 8.53 10.640 3.42707 4.80788 30.57 1486.90 1023.431 8.85 8.82 10.571 3.42670 4.81676 30.63 1486.72 1023.487 9.15 9.12 10.501 3.42656 4.82597 30.68 1486.54 1023.544 9.45 9.42 10.434 3.42648 4.83499 30.74 1486.37 1023.600 9.75 9.72 10.359 3.42506 4.84327 30.79 1486.17 1023.652 10.05 10.02 10.282 3.42624 4.85551 30.87 1485.99 1023.726 10.35 10.32 10.238 3.42752 4.86334 30.92 1485.90 1023.773 10.65 10.62 10.193 3.42827 4.87066 30.96 1485.79 1023.818 10.95 10.92 10.118 3.43067 4.88454 31.05 1485.63 1023.901 11.25 11.21 10.070 3.43224 4.89339 31.11 1485.54 1023.954 11.55 11.51 10.043 3.43322 4.89853 31.14 1485.48 1023.985 11.85 11.81 10.023 3.43319 4.90131 31.16 1485.44 1024.003 12.15 12.11 10.007 3.43357 4.90410 31.17 1485.40 1024.021 12.45 12.41 9.994 3.43350 4.90584 31.18 1485.37 1024.032 12.75 12.71 9.990 3.43428 4.90751 31.20 1485.38 1024.043 13.05 13.01 9.984 3.43487 4.90914 31.21 1485.38 1024.054 13.35 13.30 9.973 3.43474 4.91060 31.22 1485.35 1024.064 13.65 13.60 9.969 3.43513 4.91175 31.22 1485.35 1024.072 13.95 13.90 9.967 3.43506 4.91189 31.22 1485.35 1024.074 14.25 14.20 9.965 3.43621 4.91379 31.24 1485.36 1024.086 14.55 14.50 9.967 3.43857 4.91695 31.26 1485.40 1024.104 14.85 14.80 9.955 3.43854 4.91846 31.27 1485.37 1024.115 15.15 15.10 9.948 3.43912 4.92031 31.28 1485.37 1024.126 15.45 15.39 9.941 3.44086 4.92381 31.30 1485.37 1024.147 15.75 15.69 9.936 3.44190 4.92607 31.32 1485.38 1024.161 16.05 15.99 9.934 3.44316 4.92809 31.33 1485.39 1024.174 16.35 16.29 9.931 3.44273 4.92795 31.33 1485.39 1024.175 16.65 16.59 9.930 3.44287 4.92823 31.33 1485.39 1024.177 16.95 16.89 9.927 3.44331 4.92926 31.34 1485.39 1024.185 17.25 17.19 9.926 3.44491 4.93170 31.36 1485.41 1024.199 17.55 17.48 9.929 3.44677 4.93393 31.37 1485.45 1024.213 17.85 17.78 9.932 3.45154 4.94031 31.42 1485.52 1024.249 18.15 18.08 9.933 3.45388 4.94353 31.44 1485.56 1024.268 18.45 18.38 9.935 3.45559 4.94578 31.46 1485.59 1024.281 18.75 18.68 9.934 3.45639 4.94703 31.47 1485.60 1024.290 19.05 18.98 9.933 3.45749 4.94876 31.48 1485.62 1024.300 19.35 19.28 9.933 3.45889 4.95071 31.49 1485.64 1024.312 19.65 19.57 9.935 3.45989 4.95188 31.50 1485.66 1024.320 19.95 19.87 9.936 3.46306 4.95632 31.53 1485.71 1024.346 20.25 20.17 9.934 3.46459 4.95870 31.55 1485.73 1024.360 20.55 20.47 9.938 3.46678 4.96126 31.57 1485.77 1024.375 20.85 20.77 9.940 3.46786 4.96266 31.58 1485.79 1024.384 21.15 21.07 9.946 3.46931 4.96380 31.58 1485.83 1024.391 21.45 21.37 9.948 3.47046 4.96521 31.59 1485.85 1024.400 21.75 21.66 9.952 3.47125 4.96570 31.60 1485.88 1024.404 22.05 21.96 9.949 3.47225 4.96761 31.61 1485.89 1024.416 22.35 22.26 9.948 3.47305 4.96885 31.62 1485.90 1024.424 22.65 22.56 9.949 3.47444 4.97071 31.63 1485.92 1024.436 22.95 22.86 9.949 3.47533 4.97197 31.64 1485.94 1024.444 23.25 23.16 9.955 3.47811 4.97518 31.66 1485.99 1024.462 23.55 23.46 9.951 3.47987 4.97817 31.69 1486.01 1024.480 23.85 23.75 9.955 3.48124 4.97965 31.70 1486.04 1024.490 24.15 24.05 9.953 3.48335 4.98295 31.72 1486.06 1024.509 24.45 24.35 9.955 3.48485 4.98479 31.73 1486.09 1024.520 24.75 24.65 9.958 3.48933 4.99067 31.77 1486.16 1024.554 25.05 24.95 9.955 3.48995 4.99207 31.78 1486.17 1024.563 25.35 25.25 9.955 3.49274 4.99606 31.81 1486.21 1024.586 25.65 25.55 9.956 3.49379 4.99739 31.82 1486.23 1024.595 25.95 25.84 9.958 3.49388 4.99728 31.82 1486.24 1024.595 26.25 26.14 9.953 3.49480 4.99925 31.83 1486.24 1024.608 26.55 26.44 9.954 3.49498 4.99935 31.83 1486.25 1024.609 26.85 26.74 9.954 3.49530 4.99980 31.84 1486.26 1024.613 27.15 27.04 9.962 3.49582 4.99944 31.84 1486.29 1024.612 27.45 27.34 9.956 3.49661 5.00140 31.85 1486.29 1024.625 27.75 27.63 9.957 3.49631 5.00089 31.84 1486.29 1024.623 28.05 27.93 9.953 3.49712 5.00260 31.86 1486.30 1024.634 28.35 28.23 9.956 3.49796 5.00335 31.86 1486.32 1024.639 28.65 28.53 9.955 3.49760 5.00295 31.86 1486.32 1024.638 28.95 28.83 9.956 3.49817 5.00369 31.86 1486.33 1024.643 29.25 29.13 9.951 3.49834 5.00470 31.87 1486.33 1024.651 29.55 29.43 9.950 3.49944 5.00632 31.88 1486.34 1024.661 29.90 29.77 9.953 3.48412 4.98404 31.72 1486.17 1024.539