*2026/01/16 10:37:46.13 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 19:56:38.000 END TIME : UTC 2025/01/23 19:56:55.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 88 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.34 2 Depth metres 0.15 26.24 3 Temperature 'deg C (ITS90)' 8.089 10.162 4 Conductivity S/m 3.07004 3.47301 5 Conductance:Specific S/m 4.63911 4.9387 6 Salinity PSS-78 29.07 31.43 7 Speed:Sound m/s 1475.48 1486.51 8 Density kg/m^3 1022.61 1024.261 $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 : 30 LATITUDE : 48 54.57480 N ! (deg min) LONGITUDE : 125 20.34620 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_195638 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 88 88 MERGEHDR 1.3 2026/01/16 10:35:38 88 88 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 88 88 CALIB 12.1 2026/01/16 10:37:10 88 88 CLEAN 5.3 2026/01/16 10:37:46 88 88 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 8.089 3.07004 4.63911 29.07 1475.48 1022.610 0.45 0.45 8.129 3.07643 4.64312 29.10 1475.68 1022.632 0.75 0.75 8.174 3.08593 4.65112 29.17 1475.93 1022.676 1.05 1.05 8.208 3.09158 4.65489 29.20 1476.10 1022.697 1.35 1.35 8.236 3.09699 4.65909 29.23 1476.26 1022.720 1.65 1.64 8.251 3.10058 4.66239 29.25 1476.35 1022.739 1.95 1.94 8.267 3.10434 4.66575 29.28 1476.45 1022.758 2.25 2.24 8.300 3.10802 4.66672 29.29 1476.59 1022.763 2.55 2.54 8.326 3.11153 4.66830 29.31 1476.71 1022.772 2.85 2.84 8.342 3.11307 4.66843 29.31 1476.78 1022.774 3.15 3.14 8.353 3.11368 4.66780 29.31 1476.82 1022.771 3.45 3.44 8.360 3.11457 4.66814 29.31 1476.86 1022.774 3.75 3.74 8.366 3.11442 4.66702 29.30 1476.88 1022.769 4.05 4.04 8.374 3.11529 4.66720 29.30 1476.92 1022.771 4.35 4.34 8.385 3.11550 4.66606 29.30 1476.96 1022.766 4.65 4.63 8.390 3.11604 4.66612 29.30 1476.98 1022.767 4.95 4.93 8.398 3.11779 4.66762 29.31 1477.03 1022.776 5.25 5.23 8.411 3.12035 4.66961 29.33 1477.11 1022.788 5.55 5.53 8.435 3.12288 4.67008 29.33 1477.21 1022.791 5.85 5.83 8.458 3.12494 4.67001 29.33 1477.30 1022.791 6.15 6.13 8.479 3.12741 4.67071 29.34 1477.40 1022.796 6.45 6.43 8.508 3.13153 4.67275 29.36 1477.54 1022.807 6.75 6.73 8.551 3.13384 4.67021 29.35 1477.69 1022.793 7.05 7.03 8.606 3.14198 4.67479 29.39 1477.95 1022.817 7.35 7.33 8.655 3.15676 4.68991 29.50 1478.27 1022.899 7.65 7.62 8.690 3.16643 4.69931 29.57 1478.50 1022.950 7.95 7.92 8.770 3.17487 4.70080 29.59 1478.83 1022.956 8.25 8.22 8.857 3.19008 4.71113 29.67 1479.26 1023.010 8.55 8.52 8.909 3.20208 4.72162 29.75 1479.56 1023.066 8.85 8.82 8.964 3.22929 4.75394 29.99 1480.06 1023.241 9.15 9.12 9.030 3.24187 4.76321 30.06 1480.40 1023.290 9.45 9.42 9.095 3.24507 4.75889 30.04 1480.62 1023.265 9.75 9.72 9.175 3.24884 4.75324 30.01 1480.89 1023.232 10.05 10.02 9.308 3.27479 4.77258 30.16 1481.57 1023.332 10.35 10.31 9.430 3.31582 4.81532 30.48 1482.41 1023.560 10.65 10.61 9.514 3.35171 4.85561 30.77 1483.08 1023.778 10.95 10.91 9.601 3.36263 4.85911 30.81 1483.45 1023.794 11.25 11.21 9.667 3.36574 4.85445 30.78 1483.67 1023.765 11.55 11.51 9.723 3.36863 4.85070 30.76 1483.86 1023.743 11.85 11.81 9.757 3.37243 4.85146 30.77 1484.00 1023.746 12.15 12.11 9.773 3.37181 4.84835 30.75 1484.04 1023.729 12.45 12.41 9.786 3.37256 4.84761 30.75 1484.08 1023.726 12.75 12.70 9.793 3.37329 4.84770 30.75 1484.12 1023.727 13.05 13.00 9.799 3.37445 4.84844 30.76 1484.15 1023.732 13.35 13.30 9.815 3.37784 4.85107 30.78 1484.24 1023.747 13.65 13.60 9.829 3.37966 4.85172 30.78 1484.31 1023.751 13.95 13.90 9.843 3.38405 4.85621 30.82 1484.40 1023.776 14.25 14.20 9.853 3.38881 4.86158 30.85 1484.49 1023.806 14.55 14.50 9.864 3.39207 4.86477 30.88 1484.56 1023.824 14.85 14.80 9.873 3.39529 4.86814 30.90 1484.63 1023.843 15.15 15.09 9.879 3.39634 4.86878 30.91 1484.66 1023.848 15.45 15.39 9.884 3.39752 4.86969 30.92 1484.70 1023.854 15.75 15.69 9.890 3.39832 4.87001 30.92 1484.73 1023.856 16.05 15.99 9.895 3.39987 4.87157 30.93 1484.76 1023.866 16.35 16.29 9.898 3.40062 4.87225 30.93 1484.78 1023.871 16.65 16.59 9.901 3.40202 4.87378 30.95 1484.81 1023.880 16.95 16.89 9.907 3.40287 4.87422 30.95 1484.84 1023.883 17.25 17.19 9.910 3.40390 4.87531 30.96 1484.87 1023.890 17.55 17.48 9.913 3.40530 4.87679 30.97 1484.90 1023.900 17.85 17.78 9.920 3.40701 4.87836 30.98 1484.94 1023.909 18.15 18.08 9.926 3.40805 4.87890 30.98 1484.98 1023.913 18.45 18.38 9.935 3.41056 4.88135 31.00 1485.03 1023.927 18.75 18.68 9.939 3.41244 4.88341 31.02 1485.07 1023.939 19.05 18.98 9.944 3.41447 4.88557 31.03 1485.12 1023.952 19.35 19.28 9.949 3.41586 4.88687 31.04 1485.15 1023.960 19.65 19.57 9.952 3.41653 4.88751 31.05 1485.17 1023.965 19.95 19.87 9.958 3.41761 4.88819 31.05 1485.20 1023.970 20.25 20.17 9.964 3.41889 4.88921 31.06 1485.24 1023.976 20.55 20.47 9.968 3.41967 4.88966 31.06 1485.27 1023.979 20.85 20.77 9.973 3.42136 4.89142 31.08 1485.30 1023.990 21.15 21.07 9.983 3.42241 4.89158 31.08 1485.35 1023.992 21.45 21.37 9.992 3.42443 4.89318 31.09 1485.40 1024.001 21.75 21.67 9.999 3.42743 4.89650 31.12 1485.46 1024.020 22.05 21.96 10.007 3.43053 4.89974 31.14 1485.52 1024.039 22.35 22.26 10.015 3.43172 4.90039 31.14 1485.56 1024.043 22.65 22.56 10.022 3.43279 4.90093 31.15 1485.60 1024.047 22.95 22.86 10.028 3.43385 4.90161 31.15 1485.63 1024.051 23.25 23.16 10.036 3.43535 4.90266 31.16 1485.68 1024.058 23.55 23.46 10.037 3.43628 4.90375 31.17 1485.70 1024.065 23.85 23.76 10.032 3.43662 4.90494 31.18 1485.69 1024.073 24.15 24.05 10.036 3.43921 4.90813 31.20 1485.74 1024.092 24.45 24.35 10.045 3.44396 4.91361 31.24 1485.82 1024.123 24.75 24.65 10.061 3.44805 4.91716 31.27 1485.92 1024.142 25.05 24.95 10.077 3.45120 4.91942 31.29 1486.01 1024.155 25.35 25.25 10.087 3.45540 4.92402 31.32 1486.09 1024.181 25.65 25.55 10.101 3.46122 4.93041 31.37 1486.20 1024.216 25.95 25.85 10.127 3.46963 4.93870 31.43 1486.37 1024.261 26.34 26.24 10.162 3.47301 4.93857 31.43 1486.51 1024.260