*2026/01/16 09:57:53.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 16:10:56.000 END TIME : UTC 2024/08/15 16:11:12.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 85 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.23 2 Depth metres 0.15 25.12 3 Temperature 'deg C (ITS90)' 10.154 16.761 4 Conductivity S/m 3.53273 4.03534 5 Conductance:Specific S/m 4.82417 5.02616 6 Salinity PSS-78 31.17 32.05 7 Speed:Sound m/s 1487.21 1507.81 8 Density kg/m^3 1022.675 1024.739 $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 : 213 LATITUDE : 48 54.52410 N ! (deg min) LONGITUDE : 125 20.23590 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_161056 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 85 85 MERGEHDR 1.3 2026/01/16 09:54:01 85 85 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:20 85 85 CALIB 12.1 2026/01/16 09:56:54 85 85 CLEAN 5.3 2026/01/16 09:57:53 85 85 $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 09:56:20 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 16.761 4.03534 4.83153 31.25 1507.81 1022.696 0.45 0.45 16.662 4.01968 4.82417 31.19 1507.45 1022.675 0.75 0.75 16.648 4.01944 4.82549 31.20 1507.42 1022.686 1.05 1.05 16.644 4.02868 4.83706 31.28 1507.51 1022.752 1.35 1.35 16.623 4.02675 4.83712 31.28 1507.45 1022.758 1.65 1.64 16.386 4.01238 4.84751 31.34 1506.80 1022.860 1.95 1.94 16.310 4.00755 4.85062 31.36 1506.59 1022.892 2.25 2.24 16.024 3.97928 4.84990 31.34 1505.68 1022.940 2.55 2.54 15.829 3.94957 4.83671 31.23 1504.95 1022.902 2.85 2.84 15.693 3.93391 4.83359 31.20 1504.50 1022.909 3.15 3.14 15.504 3.91293 4.83025 31.17 1503.87 1022.924 3.45 3.44 15.272 3.90074 4.84293 31.24 1503.22 1023.033 3.75 3.74 15.059 3.88888 4.85394 31.30 1502.63 1023.130 4.05 4.04 14.977 3.87763 4.84986 31.27 1502.33 1023.122 4.35 4.34 14.879 3.87140 4.85392 31.29 1502.04 1023.161 4.65 4.63 14.770 3.86521 4.85949 31.32 1501.74 1023.210 4.95 4.93 14.690 3.86443 4.86824 31.38 1501.55 1023.272 5.25 5.23 14.633 3.86080 4.87064 31.39 1501.39 1023.295 5.55 5.53 14.571 3.85821 4.87502 31.42 1501.22 1023.330 5.85 5.83 14.463 3.84888 4.87661 31.42 1500.88 1023.356 6.15 6.13 14.344 3.83978 4.87969 31.44 1500.52 1023.392 6.45 6.43 14.253 3.82945 4.87786 31.42 1500.20 1023.397 6.75 6.73 14.192 3.81661 4.86909 31.35 1499.93 1023.359 7.05 7.02 14.082 3.80736 4.87100 31.35 1499.58 1023.386 7.35 7.32 13.985 3.80589 4.88117 31.42 1499.34 1023.457 7.65 7.62 13.909 3.80466 4.88914 31.47 1499.16 1023.513 7.95 7.92 13.702 3.80087 4.91042 31.60 1498.64 1023.661 8.25 8.22 13.441 3.77668 4.91237 31.60 1497.77 1023.708 8.55 8.52 13.077 3.72899 4.89670 31.45 1496.39 1023.670 8.85 8.82 12.644 3.69190 4.90369 31.46 1494.95 1023.762 9.15 9.12 12.353 3.66271 4.90281 31.43 1493.92 1023.792 9.45 9.41 12.195 3.65836 4.91786 31.52 1493.49 1023.894 9.75 9.71 12.083 3.65317 4.92563 31.56 1493.17 1023.950 10.05 10.01 11.934 3.65051 4.94197 31.66 1492.78 1024.057 10.35 10.31 11.843 3.64360 4.94472 31.67 1492.48 1024.083 10.65 10.61 11.708 3.63137 4.94634 31.67 1492.01 1024.107 10.95 10.91 11.644 3.62579 4.94735 31.67 1491.80 1024.120 11.25 11.21 11.563 3.62118 4.95193 31.70 1491.55 1024.155 11.55 11.51 11.491 3.61760 4.95683 31.72 1491.34 1024.190 11.85 11.80 11.446 3.61641 4.96138 31.75 1491.21 1024.220 12.15 12.10 11.404 3.61357 4.96318 31.76 1491.08 1024.236 12.45 12.40 11.386 3.61244 4.96408 31.76 1491.03 1024.244 12.75 12.70 11.363 3.61182 4.96633 31.78 1490.97 1024.259 13.05 13.00 11.338 3.61191 4.96986 31.80 1490.92 1024.282 13.35 13.30 11.328 3.61067 4.96959 31.79 1490.88 1024.283 13.65 13.60 11.301 3.60957 4.97171 31.81 1490.81 1024.298 13.95 13.89 11.237 3.60515 4.97446 31.82 1490.60 1024.321 14.25 14.19 11.139 3.59326 4.97143 31.79 1490.22 1024.314 14.55 14.49 11.014 3.57827 4.96784 31.75 1489.74 1024.306 14.85 14.79 10.869 3.57128 4.97825 31.80 1489.30 1024.377 15.15 15.09 10.744 3.56843 4.99172 31.88 1488.96 1024.463 15.45 15.39 10.704 3.56803 4.99667 31.91 1488.86 1024.495 15.75 15.69 10.688 3.56576 4.99572 31.90 1488.79 1024.492 16.05 15.98 10.670 3.56560 4.99803 31.92 1488.75 1024.507 16.35 16.28 10.652 3.56455 4.99915 31.92 1488.70 1024.516 16.65 16.58 10.633 3.56319 4.99986 31.93 1488.64 1024.523 16.95 16.88 10.622 3.56183 4.99943 31.92 1488.60 1024.523 17.25 17.18 10.605 3.56101 5.00068 31.93 1488.55 1024.532 17.55 17.48 10.593 3.56061 5.00182 31.94 1488.52 1024.541 17.85 17.77 10.588 3.56018 5.00195 31.94 1488.51 1024.543 18.15 18.07 10.582 3.56022 5.00286 31.94 1488.50 1024.550 18.45 18.37 10.579 3.56028 5.00336 31.94 1488.50 1024.554 18.75 18.67 10.575 3.55977 5.00325 31.94 1488.49 1024.555 19.05 18.97 10.569 3.56024 5.00473 31.95 1488.48 1024.565 19.35 19.27 10.559 3.55923 5.00461 31.95 1488.45 1024.566 19.65 19.57 10.551 3.55840 5.00462 31.95 1488.42 1024.568 19.95 19.86 10.541 3.55763 5.00495 31.95 1488.39 1024.572 20.25 20.16 10.509 3.55503 5.00587 31.95 1488.29 1024.581 20.55 20.46 10.470 3.55279 5.00818 31.96 1488.17 1024.598 20.85 20.76 10.408 3.54758 5.00960 31.97 1487.95 1024.611 21.15 21.06 10.375 3.54559 5.01138 31.98 1487.85 1024.625 21.45 21.36 10.338 3.54228 5.01200 31.97 1487.72 1024.632 21.75 21.65 10.302 3.54025 5.01420 31.99 1487.61 1024.648 22.05 21.95 10.267 3.54019 5.01912 32.02 1487.53 1024.679 22.35 22.25 10.246 3.53862 5.01990 32.02 1487.46 1024.686 22.65 22.55 10.242 3.53814 5.01978 32.02 1487.45 1024.687 22.95 22.85 10.243 3.53716 5.01821 32.01 1487.44 1024.679 23.25 23.15 10.234 3.53578 5.01759 32.00 1487.41 1024.678 23.55 23.45 10.220 3.53603 5.01986 32.01 1487.38 1024.693 23.85 23.74 10.209 3.53517 5.02026 32.02 1487.35 1024.697 24.15 24.04 10.193 3.53349 5.02023 32.01 1487.29 1024.699 24.45 24.34 10.181 3.53353 5.02193 32.02 1487.27 1024.710 24.75 24.64 10.172 3.53282 5.02221 32.02 1487.24 1024.714 25.05 24.94 10.162 3.53273 5.02346 32.03 1487.22 1024.723 25.23 25.12 10.154 3.53384 5.02616 32.05 1487.21 1024.739