*2026/01/16 09:57:48.73 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/23 20:50:20.000 END TIME : UTC 2024/04/23 20:50:39.800 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 29.95 2 Depth metres 0.15 29.82 3 Temperature 'deg C (ITS90)' 9.921 11.975 4 Conductivity S/m 3.36821 3.49754 5 Conductance:Specific S/m 4.56499 5.00751 6 Salinity PSS-78 28.99 31.89 7 Speed:Sound m/s 1485.64 1489.9 8 Density kg/m^3 1021.954 1024.671 $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 : 78 LATITUDE : 48 56.71430 N ! (deg min) LONGITUDE : 125 19.11140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240423_205020 ! 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 11.972 3.38551 4.57851 29.10 1489.68 1022.016 0.45 0.45 11.975 3.38099 4.57198 29.05 1489.65 1021.981 0.75 0.75 11.948 3.37496 4.56715 29.01 1489.51 1021.959 1.05 1.05 11.892 3.36821 4.56499 28.99 1489.30 1021.954 1.35 1.35 11.904 3.37814 4.57697 29.08 1489.45 1022.020 1.65 1.65 11.965 3.39650 4.59415 29.21 1489.82 1022.108 1.95 1.95 11.975 3.40110 4.59914 29.24 1489.90 1022.135 2.25 2.24 11.950 3.40243 4.60414 29.27 1489.85 1022.167 2.55 2.54 11.898 3.39746 4.60387 29.27 1489.67 1022.172 2.85 2.84 11.822 3.39907 4.61557 29.34 1489.50 1022.245 3.15 3.14 11.723 3.39424 4.62147 29.38 1489.20 1022.289 3.45 3.44 11.526 3.38408 4.63242 29.43 1488.58 1022.370 3.75 3.74 11.360 3.38001 4.64796 29.53 1488.11 1022.472 4.05 4.04 11.230 3.38319 4.66905 29.66 1487.82 1022.601 4.35 4.34 11.149 3.38600 4.68345 29.75 1487.65 1022.688 4.65 4.64 11.067 3.39357 4.70457 29.89 1487.53 1022.813 4.95 4.94 10.972 3.39758 4.72260 30.01 1487.34 1022.921 5.25 5.24 10.884 3.39947 4.73680 30.10 1487.14 1023.008 5.55 5.53 10.848 3.39958 4.74172 30.13 1487.06 1023.039 5.85 5.83 10.793 3.40340 4.75432 30.21 1486.96 1023.114 6.15 6.13 10.769 3.40762 4.76334 30.27 1486.96 1023.166 6.45 6.43 10.757 3.40827 4.76586 30.29 1486.94 1023.182 6.75 6.73 10.729 3.40844 4.76990 30.32 1486.87 1023.208 7.05 7.03 10.712 3.40871 4.77248 30.33 1486.84 1023.225 7.35 7.33 10.695 3.40836 4.77434 30.34 1486.79 1023.238 7.65 7.63 10.680 3.40854 4.77648 30.36 1486.77 1023.252 7.95 7.93 10.650 3.40905 4.78125 30.39 1486.70 1023.282 8.25 8.22 10.609 3.41102 4.78956 30.44 1486.62 1023.332 8.55 8.52 10.555 3.41511 4.80253 30.53 1486.54 1023.409 8.85 8.82 10.471 3.42165 4.82310 30.66 1486.40 1023.529 9.15 9.12 10.356 3.43031 4.85107 30.84 1486.22 1023.693 9.45 9.42 10.310 3.43126 4.85876 30.89 1486.11 1023.739 9.75 9.72 10.286 3.43058 4.86108 30.91 1486.05 1023.755 10.05 10.02 10.268 3.43170 4.86520 30.93 1486.02 1023.780 10.35 10.32 10.251 3.43213 4.86815 30.95 1485.99 1023.799 10.65 10.61 10.233 3.43346 4.87255 30.98 1485.96 1023.826 10.95 10.91 10.217 3.43332 4.87451 30.99 1485.92 1023.839 11.25 11.21 10.206 3.43445 4.87772 31.01 1485.91 1023.859 11.55 11.51 10.192 3.43562 4.88129 31.04 1485.89 1023.880 11.85 11.81 10.179 3.43628 4.88400 31.05 1485.87 1023.898 12.15 12.11 10.163 3.43643 4.88638 31.07 1485.84 1023.913 12.45 12.41 10.148 3.43741 4.88993 31.09 1485.82 1023.935 12.75 12.70 10.133 3.43763 4.89227 31.11 1485.79 1023.950 13.05 13.00 10.126 3.43786 4.89364 31.12 1485.78 1023.959 13.35 13.30 10.116 3.43812 4.89537 31.13 1485.76 1023.971 13.65 13.60 10.111 3.43820 4.89625 31.13 1485.75 1023.977 13.95 13.90 10.093 3.43920 4.90016 31.16 1485.72 1024.001 14.25 14.20 10.085 3.43986 4.90214 31.17 1485.72 1024.014 14.55 14.50 10.068 3.44078 4.90580 31.19 1485.69 1024.036 14.85 14.80 10.053 3.44128 4.90871 31.21 1485.66 1024.055 15.15 15.09 10.040 3.44293 4.91279 31.24 1485.65 1024.079 15.45 15.39 10.030 3.44360 4.91525 31.25 1485.64 1024.095 15.75 15.69 10.023 3.44506 4.91826 31.27 1485.64 1024.113 16.05 15.99 10.017 3.44586 4.92029 31.29 1485.64 1024.126 16.35 16.29 10.010 3.44681 4.92258 31.30 1485.64 1024.140 16.65 16.59 10.010 3.44766 4.92386 31.31 1485.65 1024.148 16.95 16.89 10.002 3.44813 4.92560 31.32 1485.65 1024.160 17.25 17.18 9.994 3.44975 4.92899 31.35 1485.65 1024.180 17.55 17.48 9.984 3.45137 4.93272 31.37 1485.65 1024.203 17.85 17.78 9.978 3.45293 4.93580 31.39 1485.66 1024.221 18.15 18.08 9.976 3.45374 4.93729 31.40 1485.67 1024.231 18.45 18.38 9.972 3.45451 4.93903 31.41 1485.67 1024.242 18.75 18.68 9.969 3.45587 4.94139 31.43 1485.68 1024.256 19.05 18.98 9.965 3.45741 4.94404 31.45 1485.70 1024.272 19.35 19.27 9.965 3.45983 4.94750 31.47 1485.73 1024.293 19.65 19.57 9.959 3.46208 4.95169 31.50 1485.75 1024.318 19.95 19.87 9.956 3.46307 4.95347 31.51 1485.76 1024.329 20.25 20.17 9.956 3.46495 4.95622 31.53 1485.78 1024.345 20.55 20.47 9.958 3.46657 4.95815 31.55 1485.82 1024.357 20.85 20.77 9.957 3.46657 4.95836 31.55 1485.82 1024.359 21.15 21.07 9.955 3.46685 4.95900 31.55 1485.82 1024.364 21.45 21.36 9.954 3.46690 4.95922 31.55 1485.82 1024.367 21.75 21.66 9.956 3.46788 4.96042 31.56 1485.84 1024.375 22.05 21.96 9.960 3.46872 4.96093 31.57 1485.87 1024.378 22.35 22.26 9.959 3.46932 4.96200 31.57 1485.88 1024.386 22.65 22.56 9.958 3.46887 4.96147 31.57 1485.88 1024.384 22.95 22.86 9.952 3.46994 4.96391 31.58 1485.88 1024.399 23.25 23.16 9.950 3.47215 4.96730 31.61 1485.91 1024.419 23.55 23.45 9.948 3.47498 4.97168 31.64 1485.94 1024.445 23.85 23.75 9.945 3.47632 4.97393 31.65 1485.95 1024.458 24.15 24.05 9.944 3.47755 4.97594 31.67 1485.97 1024.471 24.45 24.35 9.943 3.47884 4.97783 31.68 1485.99 1024.483 24.75 24.65 9.942 3.47980 4.97933 31.69 1486.00 1024.492 25.05 24.95 9.942 3.48098 4.98114 31.70 1486.02 1024.504 25.35 25.25 9.943 3.48278 4.98352 31.72 1486.05 1024.518 25.65 25.54 9.941 3.48454 4.98639 31.74 1486.07 1024.535 25.95 25.84 9.940 3.48524 4.98752 31.75 1486.08 1024.543 26.25 26.14 9.938 3.48688 4.99014 31.77 1486.10 1024.558 26.55 26.44 9.933 3.48770 4.99200 31.78 1486.11 1024.570 26.85 26.74 9.933 3.48976 4.99491 31.80 1486.14 1024.588 27.15 27.04 9.937 3.49166 4.99712 31.82 1486.17 1024.601 27.45 27.33 9.935 3.49266 4.99885 31.83 1486.19 1024.612 27.75 27.63 9.933 3.49353 5.00028 31.84 1486.20 1024.621 28.05 27.93 9.933 3.49503 5.00242 31.85 1486.22 1024.634 28.35 28.23 9.933 3.49541 5.00296 31.86 1486.23 1024.638 28.65 28.53 9.933 3.49597 5.00379 31.86 1486.24 1024.644 28.95 28.83 9.926 3.49650 5.00564 31.87 1486.23 1024.656 29.25 29.13 9.931 3.49729 5.00601 31.88 1486.26 1024.659 29.55 29.42 9.921 3.49686 5.00676 31.88 1486.24 1024.665 29.95 29.82 9.923 3.49754 5.00751 31.89 1486.26 1024.671