*2026/01/16 09:57:54.14 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/03 18:57:42.000 END TIME : UTC 2024/09/03 18:57:56.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 72 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.32 2 Depth metres 0.15 21.27 3 Temperature 'deg C (ITS90)' 10.199 20.122 4 Conductivity S/m 1.86708 3.56396 5 Conductance:Specific S/m 2.06893 4.92581 6 Salinity PSS-78 12.35 31.35 7 Speed:Sound m/s 1486.45 1499.61 8 Density kg/m^3 1007.541 1024.165 $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 : 225 LATITUDE : 49 13.49810 N ! (deg min) LONGITUDE : 124 49.41800 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240903_185742 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 72 72 MERGEHDR 1.3 2026/01/16 09:54:03 72 72 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 72 72 CALIB 12.1 2026/01/16 09:56:54 72 72 CLEAN 5.3 2026/01/16 09:57:54 72 72 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 20.122 1.86708 2.06893 12.35 1496.63 1007.541 0.45 0.46 19.599 1.94626 2.18196 13.08 1495.90 1008.214 0.75 0.76 19.063 2.37182 2.69141 16.44 1498.05 1010.883 1.05 1.06 18.827 2.54296 2.90115 17.84 1498.92 1012.003 1.35 1.36 18.394 2.73299 3.14904 19.51 1499.49 1013.371 1.65 1.66 18.009 2.85403 3.31791 20.66 1499.61 1014.328 1.95 1.97 17.680 2.89801 3.39507 21.18 1499.20 1014.799 2.25 2.27 17.480 2.90495 3.41924 21.34 1498.77 1014.966 2.55 2.57 17.309 2.94000 3.47443 21.71 1498.67 1015.290 2.85 2.87 16.977 2.97611 3.54495 22.19 1498.18 1015.725 3.15 3.17 16.718 3.04863 3.65388 22.93 1498.22 1016.350 3.45 3.47 16.386 3.09919 3.74423 23.54 1497.88 1016.891 3.75 3.77 16.099 3.14194 3.82242 24.07 1497.59 1017.359 4.05 4.07 15.804 3.21495 3.93955 24.87 1497.57 1018.036 4.35 4.37 15.193 3.32441 4.13561 26.22 1497.16 1019.192 4.65 4.67 14.689 3.39084 4.27178 27.14 1496.61 1020.009 4.95 4.97 14.133 3.48011 4.44653 28.34 1496.18 1021.042 5.25 5.27 13.557 3.53074 4.57865 29.23 1495.32 1021.845 5.55 5.57 13.191 3.55480 4.65400 29.74 1494.70 1022.307 5.85 5.87 12.887 3.56396 4.70337 30.06 1494.06 1022.617 6.15 6.17 12.748 3.55771 4.71239 30.11 1493.66 1022.685 6.45 6.47 12.543 3.54494 4.72115 30.16 1493.01 1022.759 6.75 6.77 12.343 3.53985 4.73969 30.27 1492.47 1022.885 7.05 7.07 11.915 3.52861 4.77939 30.51 1491.28 1023.151 7.35 7.36 11.711 3.52637 4.80287 30.65 1490.75 1023.302 7.65 7.66 11.639 3.52826 4.81484 30.73 1490.60 1023.376 7.95 7.96 11.521 3.51495 4.81228 30.70 1490.16 1023.375 8.25 8.26 11.392 3.51369 4.82762 30.80 1489.82 1023.473 8.55 8.56 11.293 3.51061 4.83652 30.85 1489.54 1023.533 8.85 8.86 11.255 3.50749 4.83725 30.85 1489.42 1023.541 9.15 9.16 11.192 3.50669 4.84457 30.89 1489.25 1023.589 9.45 9.46 11.127 3.50362 4.84897 30.92 1489.06 1023.620 9.75 9.75 11.085 3.50149 4.85175 30.93 1488.93 1023.640 10.05 10.05 11.050 3.49947 4.85368 30.94 1488.82 1023.655 10.35 10.35 11.011 3.49940 4.85882 30.97 1488.73 1023.688 10.65 10.65 10.995 3.49770 4.85862 30.97 1488.67 1023.690 10.95 10.95 10.966 3.49720 4.86183 30.99 1488.60 1023.711 11.25 11.25 10.952 3.49662 4.86292 31.00 1488.56 1023.719 11.55 11.55 10.913 3.49599 4.86727 31.02 1488.46 1023.748 11.85 11.85 10.898 3.49261 4.86459 31.00 1488.39 1023.736 12.15 12.14 10.862 3.49148 4.86788 31.02 1488.29 1023.758 12.45 12.44 10.823 3.48870 4.86935 31.03 1488.16 1023.771 12.75 12.74 10.802 3.48848 4.87186 31.04 1488.11 1023.787 13.05 13.04 10.774 3.48767 4.87461 31.06 1488.03 1023.806 13.35 13.34 10.752 3.48680 4.87630 31.07 1487.97 1023.818 13.65 13.64 10.709 3.48555 4.88046 31.09 1487.85 1023.846 13.95 13.94 10.695 3.48428 4.88067 31.09 1487.81 1023.850 14.25 14.24 10.675 3.48462 4.88378 31.11 1487.77 1023.870 14.55 14.53 10.629 3.48163 4.88593 31.12 1487.62 1023.886 14.85 14.83 10.594 3.48096 4.88980 31.14 1487.53 1023.912 15.15 15.13 10.571 3.47921 4.89056 31.15 1487.45 1023.919 15.45 15.43 10.540 3.47765 4.89261 31.16 1487.36 1023.934 15.75 15.73 10.532 3.47778 4.89392 31.17 1487.34 1023.943 16.05 16.03 10.518 3.47699 4.89468 31.17 1487.30 1023.949 16.35 16.33 10.514 3.47769 4.89626 31.18 1487.30 1023.960 16.65 16.62 10.483 3.47654 4.89883 31.19 1487.22 1023.977 16.95 16.92 10.465 3.47644 4.90119 31.21 1487.18 1023.993 17.25 17.22 10.464 3.47524 4.89968 31.20 1487.16 1023.986 17.55 17.52 10.431 3.47525 4.90429 31.23 1487.08 1024.015 17.85 17.82 10.424 3.47401 4.90346 31.22 1487.06 1024.012 18.15 18.12 10.405 3.47349 4.90532 31.23 1487.01 1024.025 18.45 18.42 10.376 3.47169 4.90680 31.24 1486.92 1024.037 18.75 18.72 10.344 3.47141 4.91095 31.26 1486.83 1024.063 19.05 19.01 10.328 3.47048 4.91175 31.27 1486.79 1024.070 19.35 19.31 10.332 3.46985 4.91038 31.26 1486.79 1024.063 19.65 19.61 10.302 3.46764 4.91137 31.26 1486.70 1024.072 19.95 19.91 10.294 3.46833 4.91355 31.27 1486.69 1024.086 20.25 20.21 10.279 3.46662 4.91320 31.27 1486.63 1024.087 20.55 20.51 10.266 3.46663 4.91490 31.28 1486.61 1024.098 20.85 20.81 10.215 3.46415 4.91851 31.30 1486.45 1024.123 21.15 21.10 10.199 3.46765 4.92581 31.35 1486.45 1024.165 21.32 21.27 10.220 3.46850 4.92398 31.34 1486.52 1024.155