*2026/01/16 09:57:53.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 16:56:45.000 END TIME : UTC 2024/08/15 16:56:59.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 73 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.78 2 Depth metres 0.15 21.68 3 Temperature 'deg C (ITS90)' 10.407 16.195 4 Conductivity S/m 3.54826 3.99973 5 Conductance:Specific S/m 4.8493 5.01064 6 Salinity PSS-78 31.2 31.97 7 Speed:Sound m/s 1487.97 1506.23 8 Density kg/m^3 1022.927 1024.621 $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 : 214 LATITUDE : 48 55.81620 N ! (deg min) LONGITUDE : 125 23.42360 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_165645 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 73 73 MERGEHDR 1.3 2026/01/16 09:54:01 73 73 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:20 73 73 CALIB 12.1 2026/01/16 09:56:54 73 73 CLEAN 5.3 2026/01/16 09:57:53 73 73 $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 16.195 3.99973 4.85465 31.39 1506.23 1022.927 0.45 0.45 16.173 3.99809 4.85517 31.39 1506.17 1022.935 0.75 0.75 16.143 3.99352 4.85325 31.37 1506.06 1022.931 1.05 1.05 16.127 3.99274 4.85419 31.38 1506.02 1022.940 1.35 1.35 16.099 3.99184 4.85637 31.39 1505.96 1022.959 1.65 1.64 16.072 3.98742 4.85415 31.37 1505.86 1022.952 1.95 1.94 16.063 3.98701 4.85477 31.38 1505.84 1022.959 2.25 2.24 16.032 3.98670 4.85808 31.40 1505.77 1022.984 2.55 2.54 15.975 3.98191 4.85900 31.40 1505.60 1023.000 2.85 2.84 15.911 3.97758 4.86126 31.41 1505.42 1023.025 3.15 3.14 15.845 3.97269 4.86310 31.42 1505.23 1023.048 3.45 3.44 15.661 3.96465 4.87519 31.50 1504.75 1023.147 3.75 3.74 15.499 3.93785 4.86170 31.39 1504.12 1023.101 4.05 4.04 15.379 3.91901 4.85278 31.32 1503.66 1023.073 4.35 4.33 15.270 3.90566 4.84930 31.29 1503.29 1023.073 4.65 4.63 15.090 3.89910 4.86295 31.37 1502.82 1023.179 4.95 4.93 14.882 3.89450 4.88250 31.50 1502.30 1023.321 5.25 5.23 14.768 3.88756 4.88774 31.53 1501.98 1023.369 5.55 5.53 14.700 3.87329 4.87825 31.45 1501.68 1023.328 5.85 5.83 14.632 3.86803 4.87998 31.46 1501.47 1023.350 6.15 6.13 14.364 3.85862 4.90115 31.59 1500.76 1023.508 6.45 6.43 13.870 3.83155 4.92866 31.75 1499.34 1023.733 6.75 6.73 13.519 3.77483 4.90000 31.51 1497.91 1023.623 7.05 7.02 13.179 3.71131 4.86036 31.20 1496.41 1023.450 7.35 7.32 12.841 3.68420 4.86800 31.23 1495.31 1023.535 7.65 7.62 12.576 3.66180 4.87254 31.23 1494.43 1023.593 7.95 7.92 12.242 3.64697 4.89633 31.37 1493.45 1023.763 8.25 8.22 11.976 3.64219 4.92508 31.55 1492.76 1023.952 8.55 8.52 11.820 3.63780 4.94002 31.64 1492.33 1024.052 8.85 8.82 11.733 3.63447 4.94717 31.68 1492.08 1024.102 9.15 9.12 11.682 3.63105 4.94940 31.69 1491.92 1024.120 9.45 9.41 11.620 3.62824 4.95390 31.72 1491.74 1024.152 9.75 9.71 11.573 3.62538 4.95638 31.73 1491.60 1024.172 10.05 10.01 11.539 3.62347 4.95835 31.74 1491.50 1024.187 10.35 10.31 11.502 3.62138 4.96055 31.75 1491.39 1024.204 10.65 10.61 11.470 3.61780 4.95995 31.74 1491.27 1024.205 10.95 10.91 11.432 3.61551 4.96203 31.75 1491.16 1024.222 11.25 11.21 11.392 3.61376 4.96510 31.77 1491.04 1024.244 11.55 11.50 11.332 3.60712 4.96410 31.76 1490.82 1024.245 11.85 11.80 11.264 3.60420 4.96937 31.79 1490.62 1024.281 12.15 12.10 11.234 3.60106 4.96918 31.78 1490.52 1024.284 12.45 12.40 11.200 3.60003 4.97245 31.80 1490.42 1024.307 12.75 12.70 11.177 3.59943 4.97472 31.81 1490.37 1024.323 13.05 13.00 11.168 3.59940 4.97594 31.82 1490.35 1024.331 13.35 13.30 11.151 3.59850 4.97702 31.83 1490.30 1024.340 13.65 13.59 11.133 3.59509 4.97481 31.81 1490.22 1024.331 13.95 13.89 11.095 3.59113 4.97459 31.80 1490.08 1024.334 14.25 14.19 11.054 3.59033 4.97912 31.83 1489.98 1024.364 14.55 14.49 11.011 3.58760 4.98126 31.84 1489.84 1024.381 14.85 14.79 10.995 3.58756 4.98348 31.85 1489.81 1024.396 15.15 15.09 10.979 3.58777 4.98586 31.87 1489.77 1024.411 15.45 15.38 10.946 3.58579 4.98778 31.88 1489.67 1024.426 15.75 15.68 10.928 3.58269 4.98595 31.86 1489.60 1024.419 16.05 15.98 10.915 3.58191 4.98661 31.87 1489.56 1024.425 16.35 16.28 10.904 3.58043 4.98611 31.86 1489.52 1024.424 16.65 16.58 10.892 3.57888 4.98569 31.86 1489.47 1024.424 16.95 16.88 10.866 3.57654 4.98598 31.86 1489.39 1024.429 17.25 17.18 10.833 3.57519 4.98875 31.87 1489.29 1024.448 17.55 17.47 10.799 3.57531 4.99357 31.90 1489.22 1024.479 17.85 17.77 10.782 3.57357 4.99350 31.90 1489.16 1024.481 18.15 18.07 10.756 3.57050 4.99291 31.89 1489.06 1024.481 18.45 18.37 10.736 3.56975 4.99468 31.90 1489.00 1024.494 18.75 18.67 10.727 3.56915 4.99499 31.90 1488.98 1024.498 19.05 18.97 10.703 3.56779 4.99643 31.91 1488.91 1024.509 19.35 19.27 10.684 3.56749 4.99868 31.92 1488.86 1024.524 19.65 19.56 10.685 3.56695 4.99783 31.92 1488.86 1024.520 19.95 19.86 10.691 3.56625 4.99604 31.91 1488.87 1024.511 20.25 20.16 10.673 3.55714 4.98577 31.83 1488.72 1024.457 20.55 20.46 10.534 3.55283 4.99914 31.91 1488.33 1024.543 20.85 20.76 10.483 3.54975 5.00208 31.92 1488.17 1024.564 21.15 21.06 10.445 3.54857 5.00570 31.94 1488.06 1024.588 21.45 21.36 10.419 3.54841 5.00913 31.96 1488.00 1024.610 21.78 21.68 10.407 3.54826 5.01064 31.97 1487.97 1024.621