*2026/01/16 09:57:52.97 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 17:37:29.000 END TIME : UTC 2024/07/10 17:37:55.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.5 2 Depth metres 0.15 40.31 3 Temperature 'deg C (ITS90)' 9.01 20.232 4 Conductivity S/m 3.21758 3.79347 5 Conductance:Specific S/m 3.55677 5.14561 6 Salinity PSS-78 22.35 32.73 7 Speed:Sound m/s 1484.09 1510.2 8 Density kg/m^3 1015.09 1025.525 $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 : 175 LATITUDE : 49 43.61380 N ! (deg min) LONGITUDE : 126 26.62690 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_173729 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 135 135 MERGEHDR 1.3 2026/01/16 09:53:57 135 135 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 135 135 CALIB 12.1 2026/01/16 09:56:52 135 135 CLEAN 5.3 2026/01/16 09:57:52 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 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 20.232 3.21758 3.55677 22.35 1508.05 1015.090 0.45 0.45 20.115 3.24622 3.59772 22.63 1508.04 1015.333 0.75 0.75 19.951 3.36122 3.73879 23.61 1508.66 1016.117 1.05 1.05 19.992 3.46105 3.84629 24.37 1509.62 1016.680 1.35 1.35 19.997 3.51831 3.90950 24.81 1510.13 1017.016 1.65 1.66 19.954 3.53603 3.93290 24.97 1510.20 1017.152 1.95 1.96 19.824 3.54814 3.95783 25.15 1510.02 1017.316 2.25 2.26 19.630 3.56271 3.99141 25.38 1509.72 1017.541 2.55 2.56 19.026 3.58746 4.07424 25.94 1508.61 1018.120 2.85 2.86 18.274 3.63579 4.20091 26.81 1507.38 1018.964 3.15 3.16 17.589 3.74115 4.39217 28.14 1506.83 1020.141 3.45 3.46 16.712 3.79347 4.54721 29.21 1505.38 1021.156 3.75 3.76 15.760 3.78941 4.64845 29.88 1503.19 1021.882 4.05 4.06 14.901 3.76887 4.72281 30.35 1501.02 1022.433 4.35 4.35 13.853 3.73149 4.80210 30.84 1498.18 1023.027 4.65 4.65 13.339 3.69635 4.82061 30.93 1496.59 1023.200 4.95 4.95 12.967 3.68303 4.85033 31.11 1495.56 1023.412 5.25 5.25 12.592 3.67398 4.88667 31.34 1494.56 1023.659 5.55 5.55 12.301 3.66546 4.91335 31.50 1493.77 1023.841 5.85 5.85 12.099 3.65734 4.92911 31.59 1493.19 1023.951 6.15 6.15 11.935 3.65331 4.94556 31.69 1492.75 1024.061 6.45 6.45 11.774 3.64456 4.95529 31.74 1492.26 1024.132 6.75 6.74 11.660 3.64182 4.96697 31.81 1491.96 1024.209 7.05 7.04 11.584 3.63554 4.96880 31.82 1491.70 1024.228 7.35 7.34 11.524 3.62940 4.96855 31.81 1491.49 1024.234 7.65 7.64 11.465 3.62633 4.97241 31.83 1491.31 1024.262 7.95 7.94 11.376 3.62531 4.98305 31.90 1491.09 1024.330 8.25 8.24 11.295 3.62064 4.98782 31.92 1490.83 1024.365 8.55 8.54 11.249 3.61803 4.99047 31.94 1490.70 1024.385 8.85 8.83 11.199 3.61733 4.99647 31.97 1490.57 1024.424 9.15 9.13 11.142 3.61429 5.00007 31.99 1490.40 1024.451 9.45 9.43 11.096 3.60944 4.99977 31.98 1490.23 1024.454 9.75 9.73 11.053 3.60528 4.99994 31.98 1490.08 1024.460 10.05 10.03 10.989 3.60188 5.00420 32.00 1489.88 1024.490 10.35 10.33 10.947 3.59933 5.00649 32.01 1489.75 1024.508 10.65 10.62 10.911 3.59720 5.00845 32.02 1489.65 1024.523 10.95 10.92 10.866 3.59615 5.01334 32.05 1489.53 1024.555 11.25 11.22 10.818 3.59281 5.01537 32.06 1489.37 1024.571 11.55 11.52 10.761 3.58959 5.01884 32.08 1489.20 1024.596 11.85 11.82 10.715 3.58502 5.01891 32.07 1489.03 1024.602 12.15 12.12 10.684 3.58139 5.01814 32.06 1488.92 1024.601 12.45 12.42 10.653 3.58023 5.02092 32.08 1488.83 1024.620 12.75 12.71 10.602 3.57799 5.02505 32.10 1488.68 1024.648 13.05 13.01 10.555 3.57568 5.02832 32.12 1488.54 1024.671 13.35 13.31 10.516 3.57352 5.03091 32.13 1488.42 1024.690 13.65 13.61 10.489 3.57173 5.03215 32.14 1488.33 1024.700 13.95 13.91 10.462 3.57045 5.03423 32.15 1488.25 1024.714 14.25 14.21 10.430 3.56939 5.03728 32.17 1488.17 1024.735 14.55 14.50 10.396 3.56698 5.03861 32.17 1488.06 1024.746 14.85 14.80 10.372 3.56680 5.04182 32.19 1488.00 1024.767 15.15 15.10 10.364 3.56613 5.04208 32.19 1487.98 1024.770 15.45 15.40 10.345 3.56383 5.04150 32.19 1487.91 1024.769 15.75 15.70 10.318 3.56252 5.04342 32.20 1487.83 1024.783 16.05 16.00 10.292 3.56258 5.04732 32.22 1487.77 1024.808 16.35 16.29 10.283 3.56136 5.04681 32.22 1487.73 1024.807 16.65 16.59 10.265 3.55979 5.04713 32.22 1487.68 1024.811 16.95 16.89 10.239 3.55883 5.04949 32.23 1487.60 1024.827 17.25 17.19 10.208 3.55745 5.05202 32.24 1487.51 1024.845 17.55 17.49 10.186 3.55604 5.05326 32.25 1487.44 1024.854 17.85 17.79 10.180 3.55463 5.05200 32.24 1487.42 1024.849 18.15 18.09 10.151 3.55278 5.05357 32.25 1487.33 1024.861 18.45 18.38 10.111 3.55181 5.05795 32.27 1487.22 1024.889 18.75 18.68 10.047 3.54842 5.06241 32.30 1487.02 1024.919 19.05 18.98 10.017 3.54688 5.06445 32.31 1486.93 1024.933 19.35 19.28 9.998 3.54329 5.06213 32.29 1486.84 1024.923 19.65 19.58 9.930 3.53901 5.06586 32.30 1486.62 1024.949 19.95 19.88 9.874 3.53981 5.07521 32.36 1486.49 1025.006 20.25 20.17 9.852 3.53560 5.07228 32.34 1486.39 1024.992 20.55 20.47 9.822 3.53475 5.07540 32.36 1486.31 1025.012 20.85 20.77 9.793 3.53395 5.07856 32.38 1486.23 1025.033 21.15 21.07 9.775 3.53333 5.08034 32.39 1486.18 1025.045 21.45 21.37 9.765 3.53309 5.08144 32.39 1486.16 1025.053 21.75 21.67 9.764 3.53432 5.08325 32.40 1486.18 1025.064 22.05 21.96 9.752 3.53131 5.08067 32.38 1486.11 1025.052 22.35 22.26 9.744 3.53079 5.08118 32.39 1486.09 1025.056 22.65 22.56 9.733 3.53161 5.08399 32.41 1486.08 1025.074 22.95 22.86 9.737 3.53162 5.08338 32.40 1486.09 1025.071 23.25 23.16 9.717 3.53146 5.08611 32.42 1486.04 1025.089 23.55 23.46 9.711 3.53202 5.08781 32.43 1486.04 1025.100 23.85 23.75 9.658 3.52913 5.09133 32.45 1485.87 1025.124 24.15 24.05 9.639 3.52679 5.09077 32.44 1485.80 1025.123 24.45 24.35 9.610 3.52658 5.09480 32.46 1485.73 1025.148 24.75 24.65 9.600 3.52495 5.09381 32.46 1485.69 1025.144 25.05 24.95 9.580 3.52368 5.09493 32.46 1485.63 1025.153 25.35 25.25 9.568 3.52375 5.09687 32.47 1485.60 1025.165 25.65 25.54 9.543 3.52295 5.09939 32.49 1485.53 1025.182 25.95 25.84 9.531 3.52237 5.10032 32.49 1485.50 1025.189 26.25 26.14 9.506 3.52087 5.10188 32.50 1485.42 1025.200 26.55 26.44 9.489 3.51928 5.10199 32.50 1485.36 1025.203 26.85 26.74 9.476 3.51883 5.10337 32.51 1485.33 1025.213 27.15 27.03 9.461 3.51872 5.10535 32.52 1485.29 1025.225 27.45 27.33 9.446 3.51883 5.10772 32.53 1485.26 1025.241 27.75 27.63 9.439 3.51820 5.10783 32.53 1485.24 1025.243 28.05 27.93 9.430 3.51764 5.10844 32.53 1485.22 1025.248 28.35 28.23 9.420 3.51720 5.10916 32.54 1485.19 1025.254 28.65 28.53 9.410 3.51680 5.11019 32.54 1485.16 1025.261 28.95 28.82 9.400 3.51653 5.11127 32.55 1485.14 1025.269 29.25 29.12 9.384 3.51615 5.11311 32.56 1485.10 1025.281 29.55 29.42 9.368 3.51478 5.11347 32.56 1485.04 1025.285 29.85 29.72 9.350 3.51405 5.11511 32.57 1484.99 1025.296 30.15 30.02 9.342 3.51414 5.11643 32.58 1484.98 1025.305 30.45 30.32 9.329 3.51345 5.11734 32.58 1484.94 1025.312 30.75 30.61 9.322 3.51305 5.11785 32.58 1484.92 1025.317 31.05 30.91 9.314 3.51246 5.11805 32.58 1484.90 1025.319 31.35 31.21 9.312 3.51256 5.11860 32.59 1484.90 1025.324 31.65 31.51 9.308 3.51259 5.11922 32.59 1484.90 1025.329 31.95 31.81 9.306 3.51354 5.12088 32.60 1484.91 1025.339 32.25 32.11 9.298 3.51149 5.11905 32.59 1484.87 1025.331 32.55 32.40 9.279 3.51062 5.12060 32.60 1484.81 1025.341 32.85 32.70 9.258 3.51002 5.12297 32.61 1484.76 1025.357 33.15 33.00 9.255 3.51014 5.12359 32.61 1484.75 1025.362 33.45 33.30 9.240 3.50981 5.12531 32.62 1484.72 1025.373 33.75 33.60 9.229 3.50785 5.12408 32.61 1484.67 1025.368 34.05 33.89 9.208 3.50791 5.12732 32.63 1484.62 1025.388 34.35 34.19 9.197 3.50792 5.12893 32.64 1484.60 1025.399 34.65 34.49 9.183 3.50684 5.12956 32.65 1484.55 1025.404 34.95 34.79 9.177 3.50571 5.12879 32.64 1484.53 1025.401 35.25 35.09 9.153 3.50469 5.13083 32.65 1484.46 1025.415 35.55 35.39 9.140 3.50519 5.13358 32.67 1484.43 1025.432 35.85 35.68 9.129 3.50337 5.13256 32.66 1484.39 1025.428 36.15 35.98 9.125 3.50438 5.13465 32.67 1484.40 1025.441 36.45 36.28 9.122 3.50438 5.13503 32.67 1484.39 1025.445 36.75 36.58 9.126 3.50337 5.13302 32.66 1484.39 1025.435 37.05 36.88 9.117 3.50419 5.13551 32.68 1484.39 1025.450 37.35 37.18 9.121 3.50321 5.13355 32.66 1484.39 1025.440 37.65 37.47 9.107 3.50248 5.13461 32.67 1484.35 1025.448 37.95 37.77 9.091 3.50118 5.13508 32.67 1484.30 1025.452 38.25 38.07 9.076 3.49973 5.13516 32.67 1484.24 1025.455 38.55 38.37 9.061 3.49949 5.13704 32.68 1484.21 1025.467 38.85 38.67 9.047 3.49949 5.13920 32.69 1484.18 1025.481 39.15 38.96 9.035 3.49980 5.14147 32.71 1484.15 1025.495 39.45 39.26 9.030 3.49835 5.14012 32.70 1484.13 1025.489 39.75 39.56 9.013 3.49948 5.14427 32.72 1484.10 1025.514 40.05 39.86 9.010 3.49886 5.14383 32.72 1484.09 1025.513 40.50 40.31 9.014 3.50042 5.14561 32.73 1484.13 1025.525