*2026/01/16 10:37:57.31 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 17:58:25.000 END TIME : UTC 2025/06/26 17:58:53.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 142 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.3 2 Depth metres 0.15 42.11 3 Temperature 'deg C (ITS90)' 9.181 16.31 4 Conductivity S/m 3.44113 3.77242 5 Conductance:Specific S/m 4.56067 5.03776 6 Salinity PSS-78 29.28 31.99 7 Speed:Sound m/s 1483.83 1504.17 8 Density kg/m^3 1021.289 1024.93 $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 : 204 LATITUDE : 48 58.20010 N ! (deg min) LONGITUDE : 125 19.57260 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_175825 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 142 142 MERGEHDR 1.3 2026/01/16 10:35:47 142 142 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 142 142 CALIB 12.1 2026/01/16 10:37:20 142 142 CLEAN 5.3 2026/01/16 10:37:57 142 142 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 16.310 3.76799 4.56067 29.28 1504.17 1021.289 0.45 0.45 15.968 3.77010 4.60128 29.55 1503.42 1021.574 0.75 0.75 15.732 3.77212 4.63041 29.75 1502.91 1021.775 1.05 1.05 15.593 3.77242 4.64660 29.86 1502.60 1021.889 1.35 1.35 15.579 3.77234 4.64817 29.87 1502.57 1021.901 1.65 1.65 15.610 3.76468 4.63519 29.78 1502.57 1021.826 1.95 1.95 15.511 3.76987 4.65285 29.90 1502.40 1021.941 2.25 2.24 15.360 3.75609 4.65325 29.89 1501.92 1021.970 2.55 2.54 15.165 3.74163 4.65778 29.91 1501.32 1022.028 2.85 2.84 14.816 3.72697 4.68028 30.05 1500.37 1022.208 3.15 3.14 14.539 3.71622 4.69947 30.16 1499.61 1022.357 3.45 3.44 14.311 3.71302 4.72260 30.31 1499.05 1022.520 3.75 3.74 13.984 3.69710 4.74187 30.42 1498.11 1022.674 4.05 4.04 13.596 3.67307 4.75833 30.51 1496.94 1022.820 4.35 4.34 13.237 3.62784 4.74385 30.38 1495.59 1022.789 4.65 4.64 13.076 3.60933 4.73960 30.33 1495.00 1022.788 4.95 4.94 12.937 3.59993 4.74460 30.36 1494.57 1022.834 5.25 5.24 12.669 3.59625 4.77354 30.54 1493.88 1023.027 5.55 5.53 12.456 3.59106 4.79366 30.66 1493.31 1023.164 5.85 5.83 12.287 3.58703 4.80998 30.76 1492.85 1023.274 6.15 6.13 12.173 3.58533 4.82250 30.84 1492.55 1023.357 6.45 6.43 12.078 3.58123 4.82937 30.88 1492.28 1023.406 6.75 6.73 12.009 3.57748 4.83329 30.90 1492.07 1023.436 7.05 7.03 11.941 3.57446 4.83813 30.93 1491.87 1023.471 7.35 7.33 11.873 3.57158 4.84309 30.96 1491.68 1023.507 7.65 7.63 11.838 3.56981 4.84529 30.97 1491.57 1023.524 7.95 7.93 11.812 3.56773 4.84595 30.97 1491.49 1023.531 8.25 8.22 11.779 3.56679 4.84888 30.99 1491.40 1023.552 8.55 8.52 11.737 3.56413 4.85088 31.00 1491.27 1023.569 8.85 8.82 11.662 3.55957 4.85463 31.02 1491.04 1023.598 9.15 9.12 11.622 3.55609 4.85516 31.01 1490.90 1023.606 9.45 9.42 11.584 3.55488 4.85851 31.03 1490.80 1023.630 9.75 9.72 11.516 3.55020 4.86118 31.05 1490.58 1023.652 10.05 10.02 11.388 3.54120 4.86592 31.07 1490.16 1023.692 10.35 10.32 11.247 3.53289 4.87332 31.10 1489.72 1023.747 10.65 10.61 11.160 3.52969 4.88070 31.15 1489.47 1023.797 10.95 10.91 11.054 3.52842 4.89318 31.22 1489.19 1023.876 11.25 11.21 10.960 3.52130 4.89618 31.23 1488.87 1023.902 11.55 11.51 10.899 3.51095 4.89000 31.18 1488.60 1023.874 11.85 11.81 10.842 3.50665 4.89186 31.19 1488.41 1023.890 12.15 12.11 10.784 3.50516 4.89763 31.22 1488.25 1023.928 12.45 12.41 10.714 3.50424 4.90595 31.27 1488.07 1023.981 12.75 12.70 10.658 3.50156 4.90995 31.29 1487.90 1024.009 13.05 13.00 10.619 3.49981 4.91288 31.31 1487.78 1024.029 13.35 13.30 10.595 3.49679 4.91197 31.30 1487.69 1024.027 13.65 13.60 10.560 3.49615 4.91580 31.32 1487.60 1024.052 13.95 13.90 10.531 3.49472 4.91781 31.33 1487.52 1024.067 14.25 14.20 10.512 3.49472 4.92054 31.35 1487.47 1024.085 14.55 14.50 10.486 3.49351 4.92239 31.36 1487.40 1024.098 14.85 14.80 10.464 3.49260 4.92411 31.37 1487.33 1024.110 15.15 15.09 10.444 3.49122 4.92500 31.37 1487.27 1024.118 15.45 15.39 10.414 3.49070 4.92848 31.40 1487.19 1024.141 15.75 15.69 10.347 3.48689 4.93235 31.41 1486.98 1024.168 16.05 15.99 10.315 3.48396 4.93267 31.41 1486.87 1024.173 16.35 16.29 10.281 3.48247 4.93527 31.43 1486.77 1024.192 16.65 16.59 10.236 3.48053 4.93885 31.45 1486.64 1024.216 16.95 16.89 10.208 3.47972 4.94164 31.46 1486.56 1024.234 17.25 17.18 10.193 3.47764 4.94075 31.45 1486.50 1024.232 17.55 17.48 10.164 3.47423 4.94009 31.45 1486.39 1024.231 17.85 17.78 10.111 3.47287 4.94560 31.48 1486.24 1024.266 18.15 18.08 10.050 3.47140 4.95211 31.52 1486.07 1024.308 18.45 18.38 10.010 3.47006 4.95587 31.54 1485.96 1024.332 18.75 18.68 9.991 3.46884 4.95682 31.54 1485.90 1024.340 19.05 18.98 9.979 3.46972 4.95967 31.56 1485.88 1024.358 19.35 19.27 9.971 3.46906 4.95994 31.56 1485.86 1024.361 19.65 19.57 9.966 3.46936 4.96100 31.57 1485.86 1024.368 19.95 19.87 9.958 3.46956 4.96249 31.58 1485.84 1024.378 20.25 20.17 9.951 3.47012 4.96425 31.59 1485.84 1024.390 20.55 20.47 9.941 3.46927 4.96441 31.59 1485.81 1024.392 20.85 20.77 9.918 3.46879 4.96711 31.60 1485.74 1024.410 21.15 21.07 9.886 3.46748 4.96980 31.62 1485.65 1024.428 21.45 21.36 9.868 3.46518 4.96894 31.61 1485.58 1024.426 21.75 21.66 9.862 3.46576 4.97071 31.62 1485.58 1024.437 22.05 21.96 9.855 3.46413 4.96929 31.61 1485.55 1024.431 22.35 22.26 9.848 3.46395 4.97005 31.62 1485.53 1024.437 22.65 22.56 9.841 3.46418 4.97140 31.62 1485.52 1024.446 22.95 22.86 9.836 3.46348 4.97106 31.62 1485.50 1024.446 23.25 23.15 9.823 3.46127 4.96986 31.61 1485.44 1024.441 23.55 23.45 9.789 3.45983 4.97260 31.62 1485.34 1024.460 23.85 23.75 9.758 3.45965 4.97683 31.65 1485.27 1024.486 24.15 24.05 9.731 3.45954 4.98041 31.67 1485.20 1024.509 24.45 24.35 9.706 3.45895 4.98318 31.69 1485.14 1024.526 24.75 24.65 9.677 3.45695 4.98444 31.69 1485.04 1024.536 25.05 24.95 9.650 3.45354 4.98349 31.68 1484.93 1024.534 25.35 25.24 9.595 3.45172 4.98880 31.71 1484.77 1024.568 25.65 25.54 9.530 3.45053 4.99640 31.76 1484.60 1024.614 25.95 25.84 9.497 3.44798 4.99753 31.76 1484.48 1024.624 26.25 26.14 9.472 3.44697 4.99962 31.77 1484.41 1024.638 26.55 26.44 9.455 3.44699 5.00221 31.79 1484.37 1024.654 26.85 26.74 9.435 3.44665 5.00452 31.80 1484.32 1024.669 27.15 27.04 9.422 3.44642 5.00610 31.81 1484.29 1024.680 27.45 27.33 9.416 3.44505 5.00505 31.80 1484.26 1024.676 27.75 27.63 9.408 3.44584 5.00733 31.82 1484.25 1024.690 28.05 27.93 9.394 3.44577 5.00924 31.83 1484.22 1024.702 28.35 28.23 9.380 3.44503 5.01022 31.83 1484.18 1024.710 28.65 28.53 9.369 3.44506 5.01193 31.84 1484.16 1024.721 28.95 28.83 9.364 3.44498 5.01247 31.85 1484.15 1024.725 29.25 29.12 9.366 3.44475 5.01184 31.84 1484.16 1024.723 29.55 29.42 9.366 3.44416 5.01099 31.84 1484.15 1024.720 29.85 29.72 9.355 3.44373 5.01193 31.84 1484.12 1024.727 30.15 30.02 9.328 3.44333 5.01539 31.86 1484.05 1024.748 30.45 30.32 9.299 3.44247 5.01834 31.88 1483.97 1024.767 30.75 30.62 9.287 3.44139 5.01855 31.88 1483.93 1024.770 31.05 30.91 9.289 3.44290 5.02046 31.89 1483.96 1024.782 31.35 31.21 9.289 3.44212 5.01922 31.88 1483.96 1024.776 31.65 31.51 9.289 3.44247 5.01975 31.89 1483.97 1024.781 31.95 31.81 9.291 3.44262 5.01974 31.89 1483.98 1024.782 32.25 32.11 9.292 3.44313 5.02038 31.89 1483.99 1024.786 32.55 32.41 9.289 3.44160 5.01844 31.88 1483.97 1024.777 32.85 32.71 9.290 3.44403 5.02195 31.90 1484.01 1024.798 33.15 33.00 9.293 3.44436 5.02202 31.90 1484.02 1024.799 33.45 33.30 9.293 3.44391 5.02131 31.90 1484.02 1024.797 33.75 33.60 9.294 3.44403 5.02140 31.90 1484.03 1024.798 34.05 33.90 9.294 3.44416 5.02150 31.90 1484.04 1024.800 34.35 34.20 9.294 3.44489 5.02253 31.91 1484.05 1024.807 34.65 34.50 9.293 3.44407 5.02150 31.90 1484.04 1024.803 34.95 34.79 9.292 3.44416 5.02184 31.90 1484.05 1024.806 35.25 35.09 9.290 3.44456 5.02267 31.91 1484.05 1024.812 35.55 35.39 9.288 3.44481 5.02333 31.91 1484.05 1024.817 35.85 35.69 9.285 3.44511 5.02421 31.92 1484.05 1024.823 36.15 35.99 9.281 3.44460 5.02407 31.91 1484.04 1024.824 36.45 36.29 9.277 3.44493 5.02508 31.92 1484.04 1024.831 36.75 36.58 9.272 3.44478 5.02566 31.92 1484.03 1024.835 37.05 36.88 9.270 3.44486 5.02609 31.93 1484.03 1024.839 37.35 37.18 9.266 3.44530 5.02724 31.93 1484.03 1024.847 37.65 37.48 9.263 3.44545 5.02800 31.94 1484.03 1024.853 37.95 37.78 9.261 3.44487 5.02741 31.93 1484.02 1024.851 38.25 38.08 9.262 3.44463 5.02689 31.93 1484.03 1024.849 38.55 38.38 9.261 3.44461 5.02695 31.93 1484.03 1024.851 38.85 38.67 9.259 3.44517 5.02817 31.94 1484.03 1024.859 39.15 38.97 9.258 3.44519 5.02827 31.94 1484.04 1024.861 39.45 39.27 9.257 3.44433 5.02714 31.93 1484.03 1024.856 39.75 39.57 9.255 3.44440 5.02758 31.93 1484.03 1024.859 40.05 39.87 9.252 3.44372 5.02708 31.93 1484.02 1024.858 40.35 40.17 9.246 3.44348 5.02758 31.93 1484.00 1024.862 40.65 40.46 9.231 3.44135 5.02670 31.92 1483.94 1024.860 40.95 40.76 9.206 3.44220 5.03156 31.95 1483.89 1024.889 41.25 41.06 9.191 3.44187 5.03336 31.96 1483.85 1024.901 41.55 41.36 9.185 3.44113 5.03315 31.96 1483.83 1024.901 41.85 41.66 9.182 3.44208 5.03497 31.97 1483.84 1024.912 42.15 41.96 9.181 3.44161 5.03434 31.97 1483.84 1024.910 42.30 42.11 9.184 3.44426 5.03776 31.99 1483.89 1024.930