*2026/01/16 09:57:50.38 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 00:25:58.000 END TIME : UTC 2024/05/21 00:26:13.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 79 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.49 2 Depth metres 0.15 23.41 3 Temperature 'deg C (ITS90)' 9.317 15.792 4 Conductivity S/m 2.87319 3.60124 5 Conductance:Specific S/m 3.5218 5.08195 6 Salinity PSS-78 21.98 32.33 7 Speed:Sound m/s 1484.46 1496.87 8 Density kg/m^3 1015.808 1025.086 $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 : 110 LATITUDE : 48 55.17540 N ! (deg min) LONGITUDE : 125 1.52870 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_002558 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 79 79 MERGEHDR 1.3 2026/01/16 09:53:51 79 79 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:16 79 79 CALIB 12.1 2026/01/16 09:56:49 79 79 CLEAN 5.3 2026/01/16 09:57:50 79 79 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:16 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:49 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 15.791 2.87515 3.52422 22.00 1494.16 1015.820 0.45 0.45 15.792 2.87319 3.52180 21.98 1494.15 1015.808 0.75 0.75 15.791 2.87739 3.52700 22.02 1494.20 1015.837 1.05 1.05 15.783 2.89317 3.54701 22.16 1494.33 1015.945 1.35 1.35 15.770 2.92799 3.59089 22.46 1494.64 1016.180 1.65 1.66 15.753 2.95778 3.62890 22.72 1494.89 1016.384 1.95 1.96 15.734 2.99333 3.67428 23.03 1495.19 1016.629 2.25 2.26 15.727 3.00305 3.68680 23.12 1495.28 1016.698 2.55 2.56 15.720 3.00851 3.69412 23.17 1495.32 1016.739 2.85 2.86 15.711 3.02474 3.71492 23.31 1495.46 1016.852 3.15 3.16 15.704 3.03226 3.72482 23.38 1495.52 1016.907 3.45 3.46 15.682 3.04845 3.74667 23.53 1495.63 1017.028 3.75 3.76 15.579 3.07571 3.78981 23.82 1495.64 1017.276 4.05 4.06 14.750 3.34114 4.20269 26.66 1496.24 1019.623 4.35 4.36 13.896 3.59917 4.62664 29.60 1496.87 1022.057 4.65 4.66 13.247 3.60124 4.70785 30.12 1495.33 1022.591 4.95 4.96 12.860 3.59753 4.75109 30.40 1494.35 1022.879 5.25 5.26 12.578 3.59552 4.78404 30.61 1493.65 1023.095 5.55 5.56 12.321 3.58393 4.80154 30.71 1492.89 1023.222 5.85 5.86 11.949 3.56769 4.82785 30.86 1491.80 1023.409 6.15 6.15 11.213 3.53989 4.88766 31.20 1489.65 1023.811 6.45 6.45 10.980 3.52649 4.90060 31.27 1488.91 1023.904 6.75 6.75 10.662 3.51927 4.93420 31.47 1488.03 1024.117 7.05 7.05 10.358 3.51210 4.96643 31.66 1487.18 1024.319 7.35 7.35 10.152 3.50854 4.99050 31.81 1486.61 1024.467 7.65 7.65 9.994 3.50701 5.01086 31.93 1486.20 1024.591 7.95 7.95 9.930 3.50498 5.01716 31.96 1486.01 1024.631 8.25 8.24 9.892 3.50178 5.01798 31.97 1485.88 1024.639 8.55 8.54 9.853 3.50030 5.02157 31.99 1485.77 1024.663 8.85 8.84 9.805 3.49919 5.02691 32.02 1485.64 1024.696 9.15 9.14 9.764 3.49796 5.03095 32.04 1485.52 1024.722 9.45 9.44 9.735 3.49814 5.03555 32.07 1485.46 1024.750 9.75 9.74 9.721 3.49711 5.03604 32.07 1485.41 1024.755 10.05 10.03 9.697 3.49677 5.03904 32.09 1485.35 1024.774 10.35 10.33 9.644 3.49615 5.04581 32.13 1485.21 1024.816 10.65 10.63 9.564 3.49241 5.05216 32.16 1484.97 1024.857 10.95 10.93 9.525 3.48884 5.05257 32.16 1484.83 1024.862 11.25 11.23 9.496 3.48839 5.05630 32.18 1484.75 1024.886 11.55 11.53 9.477 3.48854 5.05922 32.20 1484.71 1024.904 11.85 11.83 9.456 3.48991 5.06429 32.23 1484.68 1024.934 12.15 12.12 9.446 3.48905 5.06454 32.23 1484.65 1024.938 12.45 12.42 9.429 3.48877 5.06654 32.24 1484.60 1024.951 12.75 12.72 9.419 3.48783 5.06672 32.24 1484.57 1024.953 13.05 13.02 9.407 3.48752 5.06810 32.25 1484.54 1024.963 13.35 13.32 9.390 3.48695 5.06966 32.26 1484.50 1024.974 13.65 13.62 9.389 3.48671 5.06954 32.26 1484.49 1024.974 13.95 13.91 9.383 3.48602 5.06940 32.26 1484.47 1024.975 14.25 14.21 9.384 3.48673 5.07025 32.26 1484.49 1024.981 14.55 14.51 9.383 3.48679 5.07048 32.27 1484.49 1024.984 14.85 14.81 9.377 3.48648 5.07099 32.27 1484.48 1024.988 15.15 15.11 9.374 3.48632 5.07119 32.27 1484.47 1024.991 15.45 15.41 9.372 3.48682 5.07222 32.28 1484.48 1024.998 15.75 15.70 9.370 3.48671 5.07236 32.28 1484.48 1025.000 16.05 16.00 9.371 3.48729 5.07298 32.28 1484.49 1025.004 16.35 16.30 9.372 3.48772 5.07345 32.28 1484.51 1025.008 16.65 16.60 9.363 3.48783 5.07498 32.29 1484.49 1025.018 16.95 16.90 9.356 3.48681 5.07447 32.29 1484.46 1025.017 17.25 17.20 9.352 3.48727 5.07578 32.30 1484.46 1025.026 17.55 17.49 9.354 3.48794 5.07652 32.30 1484.48 1025.031 17.85 17.79 9.353 3.48852 5.07752 32.31 1484.49 1025.038 18.15 18.09 9.355 3.48864 5.07734 32.31 1484.50 1025.038 18.45 18.39 9.359 3.48779 5.07555 32.30 1484.51 1025.029 18.75 18.69 9.347 3.48749 5.07680 32.30 1484.48 1025.038 19.05 18.99 9.343 3.48771 5.07780 32.31 1484.47 1025.045 19.35 19.28 9.349 3.48751 5.07663 32.30 1484.49 1025.040 19.65 19.58 9.347 3.48848 5.07833 32.31 1484.50 1025.050 19.95 19.88 9.345 3.48898 5.07929 32.32 1484.51 1025.057 20.25 20.18 9.339 3.48838 5.07937 32.32 1484.49 1025.059 20.55 20.48 9.336 3.48767 5.07872 32.31 1484.48 1025.057 20.85 20.78 9.336 3.48728 5.07811 32.31 1484.48 1025.055 21.15 21.07 9.326 3.48763 5.08015 32.32 1484.46 1025.068 21.45 21.37 9.330 3.48799 5.08008 32.32 1484.48 1025.068 21.75 21.67 9.329 3.48744 5.07937 32.32 1484.48 1025.066 22.05 21.97 9.328 3.48745 5.07955 32.32 1484.48 1025.068 22.35 22.27 9.322 3.48760 5.08072 32.33 1484.47 1025.076 22.65 22.57 9.319 3.48731 5.08077 32.33 1484.46 1025.078 22.95 22.86 9.317 3.48796 5.08195 32.33 1484.47 1025.086 23.25 23.16 9.317 3.48729 5.08094 32.33 1484.47 1025.081 23.49 23.41 9.317 3.48709 5.08066 32.32 1484.47 1025.081