*2026/01/16 09:57:53.36 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/13 00:48:26.000 END TIME : UTC 2024/08/13 00:48:36.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 51 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.28 2 Depth metres 0.15 15.25 3 Temperature 'deg C (ITS90)' 15.304 15.336 4 Conductivity S/m 3.68375 3.69552 5 Conductance:Specific S/m 4.56985 4.58297 6 Salinity PSS-78 29.29 29.38 7 Speed:Sound m/s 1501.03 1501.41 8 Density kg/m^3 1021.515 1021.646 $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 : 191 LATITUDE : 49 7.23000 N ! (deg min) LONGITUDE : 125 48.36260 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240813_004826 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 51 51 MERGEHDR 1.3 2026/01/16 09:53:59 51 51 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:20 51 51 CALIB 12.1 2026/01/16 09:56:52 51 51 CLEAN 5.3 2026/01/16 09:57:53 51 51 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 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 09:56:20 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 15.336 3.68880 4.57258 29.31 1501.14 1021.523 0.45 0.45 15.325 3.68623 4.57067 29.30 1501.09 1021.515 0.75 0.75 15.310 3.68496 4.57078 29.30 1501.05 1021.520 1.05 1.05 15.305 3.68464 4.57097 29.30 1501.04 1021.523 1.35 1.35 15.305 3.68375 4.56985 29.29 1501.03 1021.518 1.65 1.65 15.307 3.68613 4.57261 29.31 1501.07 1021.534 1.95 1.95 15.307 3.68958 4.57686 29.34 1501.11 1021.558 2.25 2.25 15.306 3.68880 4.57603 29.33 1501.10 1021.555 2.55 2.54 15.306 3.68870 4.57592 29.33 1501.11 1021.556 2.85 2.84 15.305 3.68828 4.57549 29.33 1501.10 1021.555 3.15 3.14 15.304 3.68813 4.57537 29.33 1501.11 1021.556 3.45 3.44 15.304 3.68868 4.57607 29.33 1501.12 1021.561 3.75 3.74 15.304 3.68872 4.57612 29.33 1501.12 1021.562 4.05 4.04 15.305 3.68928 4.57673 29.34 1501.13 1021.567 4.35 4.34 15.305 3.68968 4.57719 29.34 1501.14 1021.571 4.65 4.64 15.305 3.68946 4.57689 29.34 1501.15 1021.570 4.95 4.94 15.306 3.68988 4.57738 29.34 1501.16 1021.574 5.25 5.24 15.309 3.69010 4.57725 29.34 1501.17 1021.574 5.55 5.54 15.312 3.69008 4.57686 29.34 1501.18 1021.573 5.85 5.84 15.313 3.68997 4.57666 29.34 1501.19 1021.573 6.15 6.14 15.310 3.68990 4.57689 29.34 1501.19 1021.576 6.45 6.44 15.310 3.68904 4.57583 29.33 1501.18 1021.571 6.75 6.74 15.310 3.68972 4.57665 29.34 1501.19 1021.577 7.05 7.04 15.310 3.68945 4.57635 29.34 1501.20 1021.577 7.35 7.33 15.310 3.68972 4.57666 29.34 1501.20 1021.579 7.65 7.63 15.311 3.68959 4.57643 29.34 1501.21 1021.579 7.95 7.93 15.310 3.68960 4.57653 29.34 1501.21 1021.581 8.25 8.23 15.309 3.69038 4.57766 29.34 1501.22 1021.589 8.55 8.53 15.309 3.69057 4.57790 29.35 1501.23 1021.592 8.85 8.83 15.310 3.69141 4.57881 29.35 1501.24 1021.598 9.15 9.13 15.311 3.69232 4.57981 29.36 1501.26 1021.604 9.45 9.43 15.310 3.69249 4.58008 29.36 1501.27 1021.607 9.75 9.73 15.312 3.69249 4.57989 29.36 1501.28 1021.607 10.05 10.03 15.311 3.69213 4.57960 29.36 1501.27 1021.607 10.35 10.33 15.311 3.69234 4.57982 29.36 1501.28 1021.609 10.65 10.63 15.311 3.69297 4.58057 29.36 1501.29 1021.615 10.95 10.93 15.313 3.69378 4.58134 29.37 1501.31 1021.620 11.25 11.23 15.314 3.69320 4.58059 29.36 1501.31 1021.617 11.55 11.53 15.313 3.69266 4.58002 29.36 1501.31 1021.615 11.85 11.82 15.312 3.69290 4.58042 29.36 1501.31 1021.619 12.15 12.12 15.313 3.69313 4.58056 29.36 1501.32 1021.621 12.45 12.42 15.311 3.69273 4.58032 29.36 1501.32 1021.621 12.75 12.72 15.313 3.69298 4.58040 29.36 1501.33 1021.622 13.05 13.02 15.314 3.69326 4.58062 29.36 1501.34 1021.625 13.35 13.32 15.314 3.69273 4.57991 29.36 1501.34 1021.622 13.65 13.62 15.315 3.69339 4.58064 29.36 1501.35 1021.627 13.95 13.92 15.315 3.69465 4.58220 29.38 1501.37 1021.637 14.25 14.22 15.317 3.69412 4.58139 29.37 1501.38 1021.633 14.55 14.52 15.317 3.69479 4.58219 29.37 1501.39 1021.639 14.85 14.82 15.318 3.69457 4.58181 29.37 1501.39 1021.638 15.28 15.25 15.318 3.69552 4.58297 29.38 1501.41 1021.646