*2026/01/16 10:37:56.51 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 21:34:46.000 END TIME : UTC 2025/06/24 21:34:54.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 45 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 13.32 2 Depth metres 0.15 13.28 3 Temperature 'deg C (ITS90)' 12.975 13.23 4 Conductivity S/m 3.4884 3.5347 5 Conductance:Specific S/m 4.56291 4.65366 6 Salinity PSS-78 29.09 29.71 7 Speed:Sound m/s 1493.8 1494.14 8 Density kg/m^3 1021.783 1022.364 $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 : 188 LATITUDE : 49 14.09850 N ! (deg min) LONGITUDE : 125 54.97610 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_213446 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 45 45 MERGEHDR 1.3 2026/01/16 10:35:46 45 45 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:48 45 45 CALIB 12.1 2026/01/16 10:37:19 45 45 CLEAN 5.3 2026/01/16 10:37:56 45 45 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 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 10:36:48 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 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 13.221 3.48989 4.56539 29.11 1493.98 1021.796 0.45 0.45 13.226 3.48840 4.56291 29.09 1493.98 1021.783 0.75 0.75 13.198 3.49004 4.56831 29.13 1493.93 1021.817 1.05 1.05 13.190 3.49503 4.57588 29.18 1493.97 1021.861 1.35 1.35 13.205 3.49579 4.57508 29.18 1494.02 1021.856 1.65 1.65 13.203 3.49815 4.57834 29.20 1494.05 1021.875 1.95 1.95 13.230 3.50025 4.57794 29.20 1494.14 1021.871 2.25 2.24 13.207 3.50030 4.58071 29.22 1494.09 1021.890 2.55 2.54 13.170 3.50024 4.58503 29.25 1494.00 1021.920 2.85 2.84 13.141 3.50059 4.58895 29.27 1493.94 1021.946 3.15 3.14 13.123 3.50040 4.59096 29.28 1493.90 1021.961 3.45 3.44 13.114 3.50083 4.59258 29.29 1493.88 1021.972 3.75 3.74 13.103 3.50173 4.59504 29.31 1493.87 1021.988 4.05 4.04 13.090 3.50181 4.59672 29.32 1493.85 1022.000 4.35 4.34 13.082 3.50218 4.59818 29.33 1493.84 1022.011 4.65 4.64 13.074 3.50239 4.59947 29.34 1493.82 1022.020 4.95 4.94 13.064 3.50242 4.60069 29.35 1493.80 1022.029 5.25 5.24 13.059 3.50322 4.60241 29.36 1493.80 1022.040 5.55 5.54 13.054 3.50368 4.60357 29.37 1493.80 1022.049 5.85 5.84 13.050 3.50478 4.60551 29.38 1493.81 1022.061 6.15 6.13 13.048 3.50437 4.60522 29.38 1493.80 1022.061 6.45 6.43 13.045 3.50526 4.60670 29.39 1493.81 1022.071 6.75 6.73 13.041 3.50707 4.60960 29.41 1493.83 1022.088 7.05 7.03 13.033 3.50696 4.61040 29.41 1493.81 1022.095 7.35 7.33 13.028 3.50751 4.61177 29.42 1493.81 1022.104 7.65 7.63 13.022 3.50835 4.61360 29.43 1493.81 1022.116 7.95 7.93 13.018 3.50919 4.61523 29.45 1493.81 1022.127 8.25 8.23 13.015 3.51049 4.61729 29.46 1493.82 1022.140 8.55 8.53 13.008 3.51209 4.62017 29.48 1493.83 1022.158 8.85 8.83 13.003 3.51459 4.62415 29.51 1493.85 1022.182 9.15 9.13 12.996 3.51856 4.63016 29.55 1493.88 1022.217 9.45 9.43 12.991 3.52245 4.63588 29.59 1493.92 1022.250 9.75 9.72 12.989 3.52354 4.63760 29.60 1493.93 1022.261 10.05 10.02 12.984 3.52601 4.64138 29.63 1493.95 1022.283 10.35 10.32 12.980 3.52740 4.64379 29.64 1493.96 1022.298 10.65 10.62 12.978 3.52704 4.64347 29.64 1493.95 1022.298 10.95 10.92 12.977 3.52755 4.64430 29.65 1493.96 1022.304 11.25 11.22 12.976 3.52903 4.64639 29.66 1493.98 1022.317 11.55 11.52 12.975 3.53094 4.64902 29.68 1494.00 1022.333 11.85 11.82 12.977 3.53163 4.64970 29.68 1494.02 1022.337 12.15 12.12 12.978 3.53229 4.65049 29.69 1494.03 1022.343 12.45 12.42 12.978 3.53346 4.65200 29.70 1494.05 1022.352 12.75 12.72 12.979 3.53451 4.65329 29.71 1494.07 1022.361 13.05 13.02 12.978 3.53470 4.65366 29.71 1494.08 1022.364 13.32 13.28 12.985 3.53468 4.65278 29.71 1494.10 1022.359