*2026/01/16 09:57:55.81 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 21:39:50.000 END TIME : UTC 2024/10/15 21:40:03.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 67 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.91 2 Depth metres 0.15 19.84 3 Temperature 'deg C (ITS90)' 12.237 13.125 4 Conductivity S/m 3.32217 3.64377 5 Conductance:Specific S/m 4.35694 4.87905 6 Salinity PSS-78 27.64 31.25 7 Speed:Sound m/s 1491.91 1494.63 8 Density kg/m^3 1020.674 1023.712 $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 : 268 LATITUDE : 49 21.83120 N ! (deg min) LONGITUDE : 126 4.81320 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_213950 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 67 67 MERGEHDR 1.3 2026/01/16 09:54:08 67 67 HDREDIT2 3.2 2026/01/16 09:55:13 ? ? REMOVECH 8.2 2026/01/16 09:56:23 67 67 CALIB 12.1 2026/01/16 09:56:56 67 67 CLEAN 5.3 2026/01/16 09:57:55 67 67 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:13 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 13.125 3.32217 4.35694 27.64 1491.91 1020.674 0.45 0.45 13.005 3.40166 4.47528 28.46 1492.48 1021.333 0.75 0.75 12.949 3.46358 4.56352 29.08 1493.02 1021.823 1.05 1.05 12.915 3.47115 4.57749 29.17 1493.03 1021.904 1.35 1.35 12.858 3.51411 4.64116 29.62 1493.37 1022.261 1.65 1.65 12.833 3.51903 4.65074 29.68 1493.36 1022.318 1.95 1.95 12.853 3.52859 4.66089 29.76 1493.52 1022.372 2.25 2.24 12.859 3.53341 4.66650 29.80 1493.60 1022.404 2.55 2.54 12.853 3.53908 4.67471 29.85 1493.65 1022.451 2.85 2.84 12.836 3.54132 4.67985 29.89 1493.64 1022.482 3.15 3.14 12.821 3.55248 4.69647 30.01 1493.73 1022.576 3.45 3.44 12.798 3.55794 4.70649 30.08 1493.74 1022.635 3.75 3.74 12.790 3.56265 4.71370 30.13 1493.78 1022.677 4.05 4.04 12.824 3.56560 4.71346 30.13 1493.90 1022.673 4.35 4.34 12.797 3.56122 4.71095 30.11 1493.79 1022.664 4.65 4.64 12.740 3.56624 4.72478 30.20 1493.71 1022.748 4.95 4.94 12.711 3.57065 4.73424 30.26 1493.69 1022.805 5.25 5.23 12.714 3.57441 4.73882 30.30 1493.74 1022.831 5.55 5.53 12.736 3.57383 4.73526 30.27 1493.80 1022.810 5.85 5.83 12.743 3.57382 4.73446 30.27 1493.82 1022.806 6.15 6.13 12.747 3.57528 4.73589 30.28 1493.85 1022.814 6.45 6.43 12.776 3.58235 4.74160 30.32 1494.00 1022.844 6.75 6.73 12.775 3.58496 4.74510 30.35 1494.04 1022.864 7.05 7.03 12.765 3.58646 4.74844 30.37 1494.03 1022.885 7.35 7.33 12.751 3.59358 4.75961 30.45 1494.08 1022.949 7.65 7.63 12.748 3.60144 4.77032 30.52 1494.17 1023.010 7.95 7.93 12.758 3.60671 4.77607 30.56 1494.26 1023.041 8.25 8.22 12.773 3.60929 4.77762 30.58 1494.32 1023.049 8.55 8.52 12.819 3.61765 4.78290 30.62 1494.53 1023.074 8.85 8.82 12.836 3.62158 4.78585 30.64 1494.63 1023.089 9.15 9.12 12.812 3.62595 4.79468 30.70 1494.62 1023.142 9.45 9.42 12.764 3.63429 4.81188 30.82 1494.60 1023.244 9.75 9.72 12.716 3.63810 4.82297 30.89 1494.53 1023.312 10.05 10.02 12.682 3.64232 4.83297 30.96 1494.50 1023.373 10.35 10.32 12.665 3.64377 4.83702 30.99 1494.48 1023.398 10.65 10.62 12.622 3.64105 4.83894 31.00 1494.35 1023.415 10.95 10.91 12.550 3.63976 4.84650 31.04 1494.17 1023.466 11.25 11.21 12.519 3.63962 4.85043 31.07 1494.09 1023.493 11.55 11.51 12.506 3.64049 4.85324 31.09 1494.08 1023.511 11.85 11.81 12.497 3.64140 4.85565 31.10 1494.07 1023.527 12.15 12.11 12.493 3.64172 4.85657 31.11 1494.07 1023.534 12.45 12.41 12.490 3.64078 4.85573 31.10 1494.06 1023.531 12.75 12.71 12.484 3.64132 4.85715 31.11 1494.05 1023.540 13.05 13.01 12.477 3.64118 4.85793 31.12 1494.04 1023.547 13.35 13.30 12.461 3.64092 4.85968 31.13 1494.00 1023.559 13.65 13.60 12.445 3.64075 4.86152 31.14 1493.97 1023.573 13.95 13.90 12.433 3.64194 4.86465 31.16 1493.96 1023.593 14.25 14.20 12.421 3.64101 4.86487 31.16 1493.92 1023.596 14.55 14.50 12.410 3.64042 4.86555 31.17 1493.89 1023.603 14.85 14.80 12.400 3.64055 4.86705 31.17 1493.87 1023.613 15.15 15.10 12.388 3.64087 4.86904 31.19 1493.85 1023.627 15.45 15.40 12.375 3.64086 4.87068 31.20 1493.83 1023.639 15.75 15.69 12.363 3.64097 4.87236 31.21 1493.81 1023.650 16.05 15.99 12.357 3.64128 4.87367 31.22 1493.80 1023.660 16.35 16.29 12.348 3.63974 4.87267 31.21 1493.76 1023.656 16.65 16.59 12.341 3.63972 4.87360 31.22 1493.75 1023.664 16.95 16.89 12.326 3.64001 4.87603 31.23 1493.72 1023.680 17.25 17.19 12.310 3.63956 4.87751 31.24 1493.68 1023.691 17.55 17.49 12.299 3.63916 4.87838 31.24 1493.66 1023.698 17.85 17.79 12.298 3.63944 4.87888 31.25 1493.66 1023.703 18.15 18.08 12.303 3.63995 4.87886 31.25 1493.69 1023.703 18.45 18.38 12.290 3.63869 4.87898 31.25 1493.64 1023.707 18.75 18.68 12.274 3.63645 4.87807 31.24 1493.58 1023.705 19.05 18.98 12.264 3.63628 4.87905 31.25 1493.56 1023.712 19.35 19.28 12.262 3.63245 4.87415 31.21 1493.52 1023.687 19.65 19.58 12.238 3.63206 4.87682 31.23 1493.46 1023.705 19.91 19.84 12.237 3.63262 4.87772 31.23 1493.47 1023.712