*2026/01/16 09:57:52.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/09 20:55:52.000 END TIME : UTC 2024/07/09 20:56:11.800 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 29.71 2 Depth metres 0.15 29.56 3 Temperature 'deg C (ITS90)' 9.838 16.58 4 Conductivity S/m 3.52823 3.94756 5 Conductance:Specific S/m 4.69546 5.06962 6 Salinity PSS-78 30.23 32.31 7 Speed:Sound m/s 1486.42 1506.55 8 Density kg/m^3 1022.09 1025.018 $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 : 167 LATITUDE : 49 51.17620 N ! (deg min) LONGITUDE : 126 58.48740 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240709_205552 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 100 100 MERGEHDR 1.3 2026/01/16 09:53:56 100 100 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 100 100 CALIB 12.1 2026/01/16 09:56:52 100 100 CLEAN 5.3 2026/01/16 09:57:52 100 100 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 16.580 3.94756 4.74690 30.63 1506.55 1022.263 0.45 0.45 16.407 3.90516 4.71554 30.40 1505.76 1022.123 0.75 0.75 15.976 3.84801 4.69546 30.23 1504.23 1022.090 1.05 1.05 15.562 3.81418 4.70163 30.25 1502.95 1022.197 1.35 1.35 15.117 3.82517 4.76752 30.69 1502.06 1022.634 1.65 1.65 14.989 3.79564 4.74590 30.53 1501.46 1022.536 1.95 1.94 14.534 3.78259 4.78400 30.77 1500.28 1022.818 2.25 2.24 14.080 3.77737 4.83285 31.08 1499.18 1023.156 2.55 2.54 13.908 3.77114 4.84624 31.16 1498.71 1023.255 2.85 2.84 13.726 3.75689 4.85062 31.18 1498.14 1023.306 3.15 3.14 13.670 3.76232 4.86470 31.28 1498.07 1023.393 3.45 3.44 13.600 3.76474 4.87663 31.36 1497.94 1023.469 3.75 3.74 13.524 3.76177 4.88233 31.39 1497.73 1023.512 4.05 4.04 13.461 3.76074 4.88906 31.43 1497.58 1023.559 4.35 4.33 13.338 3.75921 4.90275 31.52 1497.27 1023.652 4.65 4.63 13.202 3.74238 4.89814 31.47 1496.77 1023.646 4.95 4.93 12.978 3.70605 4.87918 31.32 1495.84 1023.570 5.25 5.23 12.697 3.68174 4.88331 31.32 1494.90 1023.628 5.55 5.53 12.572 3.67426 4.88963 31.36 1494.52 1023.679 5.85 5.83 12.470 3.67096 4.89855 31.41 1494.24 1023.741 6.15 6.13 12.363 3.66776 4.90832 31.47 1493.95 1023.809 6.45 6.43 12.267 3.66660 4.91942 31.54 1493.71 1023.882 6.75 6.72 12.168 3.65650 4.91889 31.52 1493.36 1023.891 7.05 7.02 12.051 3.64987 4.92550 31.56 1493.01 1023.941 7.35 7.32 11.934 3.63862 4.92587 31.55 1492.60 1023.957 7.65 7.62 11.787 3.63456 4.94002 31.64 1492.20 1024.052 7.95 7.92 11.648 3.63143 4.95444 31.72 1491.83 1024.146 8.25 8.22 11.559 3.62590 4.95896 31.75 1491.55 1024.181 8.55 8.52 11.483 3.62194 4.96382 31.77 1491.32 1024.217 8.85 8.81 11.413 3.61973 4.97034 31.81 1491.13 1024.260 9.15 9.11 11.380 3.61649 4.97039 31.81 1491.01 1024.265 9.45 9.41 11.343 3.62062 4.98121 31.88 1490.97 1024.330 9.75 9.71 11.316 3.62894 4.99632 31.98 1491.01 1024.417 10.05 10.01 11.329 3.63336 5.00065 32.02 1491.10 1024.441 10.35 10.31 11.345 3.63831 5.00526 32.05 1491.20 1024.466 10.65 10.61 11.338 3.63865 5.00667 32.06 1491.19 1024.476 10.95 10.90 11.295 3.63292 5.00468 32.04 1491.02 1024.470 11.25 11.20 11.249 3.62529 5.00054 32.01 1490.82 1024.453 11.55 11.50 11.202 3.62338 5.00436 32.03 1490.69 1024.479 11.85 11.80 11.159 3.61472 4.99833 31.98 1490.49 1024.451 12.15 12.10 11.094 3.60712 4.99677 31.96 1490.24 1024.449 12.45 12.40 10.981 3.59429 4.99468 31.93 1489.81 1024.448 12.75 12.70 10.917 3.59297 5.00177 31.98 1489.64 1024.494 13.05 12.99 10.863 3.59096 5.00648 32.00 1489.49 1024.526 13.35 13.29 10.840 3.59152 5.01050 32.03 1489.44 1024.552 13.65 13.59 10.795 3.58875 5.01291 32.04 1489.30 1024.570 13.95 13.89 10.753 3.58854 5.01852 32.08 1489.20 1024.605 14.25 14.19 10.717 3.58354 5.01659 32.06 1489.06 1024.599 14.55 14.49 10.621 3.57385 5.01644 32.04 1488.71 1024.607 14.85 14.78 10.528 3.56366 5.01521 32.02 1488.35 1024.608 15.15 15.08 10.470 3.55907 5.01704 32.03 1488.16 1024.624 15.45 15.38 10.440 3.55876 5.02077 32.05 1488.08 1024.648 15.75 15.68 10.395 3.55877 5.02721 32.09 1487.97 1024.688 16.05 15.98 10.349 3.55736 5.03178 32.12 1487.85 1024.718 16.35 16.28 10.313 3.55592 5.03493 32.14 1487.74 1024.739 16.65 16.58 10.283 3.55206 5.03371 32.12 1487.62 1024.736 16.95 16.87 10.229 3.54654 5.03355 32.12 1487.43 1024.740 17.25 17.17 10.176 3.54019 5.03214 32.10 1487.22 1024.737 17.55 17.47 10.125 3.53756 5.03569 32.12 1487.06 1024.761 17.85 17.77 10.077 3.53630 5.04076 32.15 1486.93 1024.794 18.15 18.07 10.050 3.53553 5.04359 32.16 1486.86 1024.812 18.45 18.37 10.029 3.53481 5.04548 32.17 1486.80 1024.825 18.75 18.66 10.025 3.53506 5.04652 32.18 1486.80 1024.833 19.05 18.96 10.017 3.53397 5.04613 32.18 1486.77 1024.832 19.35 19.26 9.999 3.53266 5.04683 32.18 1486.71 1024.839 19.65 19.56 9.989 3.53347 5.04938 32.20 1486.70 1024.854 19.95 19.86 9.991 3.53278 5.04814 32.19 1486.70 1024.849 20.25 20.16 9.986 3.53257 5.04859 32.19 1486.69 1024.853 20.55 20.45 9.984 3.53259 5.04887 32.19 1486.69 1024.856 20.85 20.75 9.980 3.53313 5.05016 32.20 1486.70 1024.864 21.15 21.05 9.981 3.53287 5.04975 32.20 1486.70 1024.863 21.45 21.35 9.983 3.53342 5.05024 32.20 1486.71 1024.867 21.75 21.65 9.992 3.53323 5.04864 32.19 1486.74 1024.859 22.05 21.95 9.988 3.53322 5.04926 32.19 1486.73 1024.864 22.35 22.24 9.982 3.53224 5.04872 32.19 1486.71 1024.863 22.65 22.54 9.976 3.53291 5.05042 32.20 1486.71 1024.874 22.95 22.84 9.975 3.53320 5.05097 32.20 1486.72 1024.878 23.25 23.14 9.978 3.53221 5.04923 32.19 1486.72 1024.869 23.55 23.44 9.972 3.53285 5.05092 32.20 1486.71 1024.880 23.85 23.74 9.981 3.53284 5.04959 32.19 1486.74 1024.874 24.15 24.04 9.972 3.53200 5.04983 32.19 1486.71 1024.877 24.45 24.33 9.964 3.53119 5.04978 32.19 1486.69 1024.878 24.75 24.63 9.957 3.53116 5.05073 32.20 1486.67 1024.885 25.05 24.93 9.956 3.53110 5.05072 32.20 1486.68 1024.887 25.35 25.23 9.948 3.53161 5.05260 32.21 1486.67 1024.899 25.65 25.53 9.936 3.53028 5.05253 32.21 1486.62 1024.900 25.95 25.83 9.922 3.53002 5.05415 32.22 1486.59 1024.911 26.25 26.12 9.908 3.52965 5.05567 32.23 1486.55 1024.922 26.55 26.42 9.903 3.52871 5.05508 32.22 1486.53 1024.920 26.85 26.72 9.882 3.52972 5.05950 32.25 1486.50 1024.947 27.15 27.02 9.876 3.52971 5.06039 32.26 1486.49 1024.954 27.45 27.32 9.879 3.52954 5.05971 32.25 1486.50 1024.951 27.75 27.62 9.874 3.53001 5.06107 32.26 1486.50 1024.960 28.05 27.91 9.861 3.52860 5.06095 32.26 1486.45 1024.962 28.35 28.21 9.851 3.52869 5.06257 32.27 1486.43 1024.972 28.65 28.51 9.847 3.52852 5.06295 32.27 1486.42 1024.976 28.95 28.81 9.842 3.52943 5.06491 32.28 1486.43 1024.988 29.25 29.11 9.845 3.52823 5.06280 32.27 1486.42 1024.978 29.55 29.41 9.843 3.52902 5.06411 32.28 1486.44 1024.986 29.71 29.56 9.838 3.53226 5.06962 32.31 1486.46 1025.018