*2026/01/16 10:37:45.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 18:15:51.000 END TIME : UTC 2025/01/23 18:16:07.200 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 24.44 2 Depth metres 0.15 24.34 3 Temperature 'deg C (ITS90)' 8.173 9.945 4 Conductivity S/m 3.09018 3.43732 5 Conductance:Specific S/m 4.64995 4.91936 6 Salinity PSS-78 29.17 31.27 7 Speed:Sound m/s 1475.99 1485.47 8 Density kg/m^3 1022.689 1024.16 $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 : 28 LATITUDE : 48 52.70300 N ! (deg min) LONGITUDE : 125 17.62750 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_181551 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 82 82 MERGEHDR 1.3 2026/01/16 10:35:38 82 82 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 82 82 CALIB 12.1 2026/01/16 10:37:10 82 82 CLEAN 5.3 2026/01/16 10:37:45 82 82 $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 8.192 3.09097 4.65618 29.20 1476.04 1022.700 0.45 0.45 8.176 3.09045 4.65762 29.21 1475.99 1022.710 0.75 0.75 8.191 3.09018 4.65512 29.20 1476.03 1022.697 1.05 1.05 8.189 3.09097 4.65656 29.21 1476.04 1022.706 1.35 1.35 8.186 3.09164 4.65799 29.21 1476.05 1022.715 1.65 1.64 8.182 3.09127 4.65810 29.21 1476.04 1022.717 1.95 1.94 8.174 3.09124 4.65906 29.22 1476.02 1022.724 2.25 2.24 8.173 3.09129 4.65936 29.22 1476.02 1022.727 2.55 2.54 8.174 3.09122 4.65916 29.22 1476.03 1022.727 2.85 2.84 8.176 3.09134 4.65896 29.22 1476.04 1022.727 3.15 3.14 8.178 3.09154 4.65901 29.22 1476.05 1022.729 3.45 3.44 8.181 3.09208 4.65944 29.22 1476.07 1022.732 3.75 3.74 8.183 3.09209 4.65910 29.22 1476.08 1022.732 4.05 4.04 8.187 3.09218 4.65877 29.22 1476.10 1022.731 4.35 4.34 8.190 3.09186 4.65783 29.21 1476.11 1022.727 4.65 4.63 8.193 3.09204 4.65770 29.21 1476.12 1022.728 4.95 4.93 8.192 3.09092 4.65614 29.20 1476.11 1022.720 5.25 5.23 8.193 3.09119 4.65637 29.20 1476.12 1022.723 5.55 5.53 8.200 3.09157 4.65599 29.20 1476.15 1022.722 5.85 5.83 8.218 3.09218 4.65441 29.19 1476.21 1022.714 6.15 6.13 8.252 3.09264 4.65026 29.17 1476.32 1022.692 6.45 6.43 8.326 3.09929 4.64995 29.18 1476.62 1022.689 6.75 6.73 8.415 3.13111 4.68525 29.43 1477.28 1022.879 7.05 7.03 8.516 3.14735 4.69535 29.52 1477.77 1022.932 7.35 7.33 8.649 3.16318 4.70021 29.57 1478.34 1022.955 7.65 7.63 8.752 3.17526 4.70387 29.61 1478.78 1022.972 7.95 7.92 8.849 3.19113 4.71383 29.69 1479.25 1023.024 8.25 8.22 8.917 3.20278 4.72152 29.75 1479.59 1023.064 8.55 8.52 8.967 3.22039 4.74048 29.89 1479.95 1023.167 8.85 8.82 9.038 3.22433 4.73634 29.87 1480.20 1023.142 9.15 9.12 9.083 3.23666 4.74823 29.96 1480.48 1023.206 9.45 9.42 9.134 3.24526 4.75365 30.01 1480.73 1023.234 9.75 9.72 9.178 3.24902 4.75310 30.01 1480.90 1023.231 10.05 10.02 9.217 3.25819 4.76114 30.07 1481.12 1023.274 10.35 10.32 9.261 3.26532 4.76537 30.11 1481.33 1023.296 10.65 10.61 9.299 3.27855 4.77940 30.21 1481.60 1023.372 10.95 10.91 9.350 3.28738 4.78509 30.25 1481.86 1023.402 11.25 11.21 9.416 3.29889 4.79265 30.32 1482.18 1023.441 11.55 11.51 9.481 3.32634 4.82343 30.54 1482.70 1023.607 11.85 11.81 9.542 3.33983 4.83450 30.63 1483.03 1023.666 12.15 12.11 9.579 3.35631 4.85304 30.76 1483.34 1023.767 12.45 12.41 9.620 3.36483 4.85971 30.81 1483.55 1023.802 12.75 12.71 9.659 3.36943 4.86087 30.83 1483.72 1023.807 13.05 13.00 9.683 3.37771 4.86938 30.89 1483.89 1023.854 13.35 13.30 9.697 3.38276 4.87472 30.93 1483.99 1023.884 13.65 13.60 9.713 3.38526 4.87603 30.94 1484.07 1023.891 13.95 13.90 9.728 3.38978 4.88044 30.97 1484.17 1023.916 14.25 14.20 9.738 3.39129 4.88130 30.98 1484.22 1023.921 14.55 14.50 9.747 3.39431 4.88430 31.00 1484.29 1023.938 14.85 14.80 9.752 3.39842 4.88958 31.04 1484.35 1023.968 15.15 15.09 9.756 3.39774 4.88799 31.03 1484.36 1023.961 15.45 15.39 9.757 3.39812 4.88836 31.03 1484.37 1023.964 15.75 15.69 9.763 3.39804 4.88745 31.02 1484.39 1023.960 16.05 15.99 9.766 3.39950 4.88913 31.04 1484.42 1023.970 16.35 16.29 9.766 3.40023 4.89017 31.04 1484.44 1023.977 16.65 16.59 9.767 3.40086 4.89092 31.05 1484.45 1023.983 16.95 16.89 9.769 3.40078 4.89048 31.05 1484.46 1023.981 17.25 17.19 9.774 3.40108 4.89024 31.04 1484.48 1023.981 17.55 17.48 9.787 3.40207 4.88982 31.04 1484.53 1023.979 17.85 17.78 9.798 3.40487 4.89237 31.06 1484.60 1023.994 18.15 18.08 9.810 3.40669 4.89331 31.07 1484.66 1023.999 18.45 18.38 9.829 3.40800 4.89248 31.07 1484.73 1023.995 18.75 18.68 9.843 3.41232 4.89673 31.10 1484.82 1024.019 19.05 18.98 9.854 3.41677 4.90153 31.13 1484.91 1024.046 19.35 19.28 9.885 3.41896 4.90029 31.13 1485.02 1024.038 19.65 19.57 9.898 3.42334 4.90483 31.16 1485.11 1024.064 19.95 19.87 9.909 3.42481 4.90528 31.17 1485.17 1024.067 20.25 20.17 9.914 3.42686 4.90756 31.18 1485.21 1024.080 20.55 20.47 9.923 3.42727 4.90694 31.18 1485.24 1024.077 20.85 20.77 9.928 3.42836 4.90775 31.19 1485.27 1024.083 21.15 21.07 9.929 3.42883 4.90833 31.19 1485.29 1024.087 21.45 21.37 9.925 3.42948 4.90982 31.20 1485.29 1024.097 21.75 21.67 9.928 3.42930 4.90907 31.20 1485.30 1024.094 22.05 21.96 9.930 3.42898 4.90838 31.19 1485.31 1024.091 22.35 22.26 9.928 3.42976 4.90976 31.20 1485.31 1024.100 22.65 22.56 9.928 3.43062 4.91101 31.21 1485.33 1024.108 22.95 22.86 9.930 3.43110 4.91147 31.21 1485.34 1024.112 23.25 23.16 9.934 3.43263 4.91296 31.22 1485.38 1024.121 23.55 23.46 9.937 3.43536 4.91646 31.25 1485.43 1024.141 23.85 23.76 9.945 3.43732 4.91821 31.26 1485.47 1024.152 24.15 24.05 9.937 3.43732 4.91936 31.27 1485.46 1024.160 24.44 24.34 9.936 3.43650 4.91826 31.26 1485.45 1024.155