*2026/01/16 09:57:54.69 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 23:26:14.000 END TIME : UTC 2024/09/04 23:26:39.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 130 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.76 2 Depth metres 0.15 38.59 3 Temperature 'deg C (ITS90)' 9.917 18.264 4 Conductivity S/m 3.51599 3.82569 5 Conductance:Specific S/m 4.29955 5.03589 6 Salinity PSS-78 27.5 32.08 7 Speed:Sound m/s 1486.6 1509.07 8 Density kg/m^3 1019.563 1024.865 $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 : 246 LATITUDE : 48 53.04990 N ! (deg min) LONGITUDE : 125 3.54150 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_232614 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 130 130 MERGEHDR 1.3 2026/01/16 09:54:06 130 130 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 130 130 CALIB 12.1 2026/01/16 09:56:55 130 130 CLEAN 5.3 2026/01/16 09:57:54 130 130 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 18.264 3.82569 4.42130 28.38 1509.07 1020.149 0.45 0.45 18.213 3.79534 4.39144 28.17 1508.68 1019.998 0.75 0.75 18.158 3.77974 4.37892 28.07 1508.42 1019.943 1.05 1.05 18.117 3.75486 4.35430 27.90 1508.10 1019.819 1.35 1.35 18.093 3.73018 4.32804 27.71 1507.82 1019.683 1.65 1.65 17.927 3.69136 4.29955 27.50 1507.10 1019.563 1.95 1.95 17.539 3.66222 4.30450 27.52 1505.96 1019.669 2.25 2.25 16.926 3.63929 4.34011 27.75 1504.35 1019.983 2.55 2.55 16.296 3.63595 4.40235 28.16 1502.87 1020.438 2.85 2.85 15.615 3.66659 4.51381 28.91 1501.61 1021.166 3.15 3.15 15.041 3.66026 4.57068 29.28 1500.20 1021.573 3.45 3.45 14.556 3.70153 4.67883 30.02 1499.50 1022.243 3.75 3.75 14.187 3.71926 4.74555 30.47 1498.83 1022.666 4.05 4.05 13.806 3.71467 4.78619 30.73 1497.89 1022.945 4.35 4.34 13.422 3.71158 4.83001 31.01 1496.95 1023.240 4.65 4.64 13.195 3.69600 4.83828 31.05 1496.25 1023.316 4.95 4.94 13.056 3.68403 4.84028 31.05 1495.78 1023.346 5.25 5.24 12.760 3.66878 4.85809 31.15 1494.91 1023.482 5.55 5.54 12.529 3.66496 4.88282 31.30 1494.31 1023.646 5.85 5.84 12.356 3.66139 4.90071 31.41 1493.86 1023.766 6.15 6.14 12.250 3.65702 4.90875 31.46 1493.56 1023.824 6.45 6.44 12.168 3.65378 4.91519 31.50 1493.33 1023.869 6.75 6.73 12.099 3.65012 4.91939 31.52 1493.12 1023.901 7.05 7.03 12.002 3.64676 4.92776 31.57 1492.85 1023.959 7.35 7.33 11.845 3.64181 4.94205 31.66 1492.42 1024.056 7.65 7.63 11.752 3.63799 4.94942 31.70 1492.15 1024.107 7.95 7.93 11.708 3.63386 4.94967 31.70 1492.00 1024.114 8.25 8.23 11.681 3.63373 4.95309 31.72 1491.94 1024.137 8.55 8.53 11.666 3.63356 4.95491 31.73 1491.90 1024.150 8.85 8.82 11.646 3.63312 4.95708 31.74 1491.85 1024.165 9.15 9.12 11.614 3.63100 4.95844 31.75 1491.76 1024.177 9.45 9.42 11.577 3.62660 4.95755 31.74 1491.62 1024.177 9.75 9.72 11.546 3.62448 4.95873 31.74 1491.52 1024.187 10.05 10.02 11.532 3.62266 4.95822 31.74 1491.47 1024.187 10.35 10.32 11.507 3.62177 4.96032 31.75 1491.41 1024.203 10.65 10.62 11.477 3.62203 4.96478 31.78 1491.34 1024.231 10.95 10.91 11.467 3.61930 4.96241 31.76 1491.29 1024.220 11.25 11.21 11.439 3.61818 4.96464 31.77 1491.21 1024.237 11.55 11.51 11.406 3.61581 4.96590 31.78 1491.11 1024.248 11.85 11.81 11.379 3.61318 4.96607 31.78 1491.01 1024.253 12.15 12.11 11.361 3.61264 4.96771 31.78 1490.97 1024.265 12.45 12.41 11.350 3.61164 4.96788 31.78 1490.93 1024.268 12.75 12.71 11.338 3.61100 4.96857 31.79 1490.90 1024.274 13.05 13.00 11.330 3.61021 4.96869 31.79 1490.87 1024.277 13.35 13.30 11.310 3.61008 4.97125 31.80 1490.83 1024.294 13.65 13.60 11.292 3.60980 4.97324 31.82 1490.79 1024.308 13.95 13.90 11.274 3.60782 4.97296 31.81 1490.72 1024.309 14.25 14.20 11.239 3.60667 4.97623 31.83 1490.63 1024.332 14.55 14.50 11.203 3.60625 4.98055 31.86 1490.54 1024.360 14.85 14.80 11.178 3.60279 4.97928 31.85 1490.44 1024.356 15.15 15.09 11.143 3.59703 4.97609 31.82 1490.29 1024.343 15.45 15.39 11.121 3.59698 4.97912 31.84 1490.24 1024.363 15.75 15.69 11.053 3.59078 4.97987 31.84 1490.00 1024.374 16.05 15.99 10.996 3.58447 4.97900 31.82 1489.79 1024.376 16.35 16.29 10.942 3.57838 4.97798 31.81 1489.59 1024.376 16.65 16.59 10.884 3.57603 4.98279 31.84 1489.42 1024.409 16.95 16.89 10.822 3.57341 4.98766 31.86 1489.24 1024.442 17.25 17.18 10.806 3.57337 4.98994 31.88 1489.20 1024.457 17.55 17.48 10.771 3.57144 4.99205 31.89 1489.10 1024.473 17.85 17.78 10.748 3.57066 4.99418 31.90 1489.04 1024.488 18.15 18.08 10.735 3.56933 4.99416 31.90 1488.99 1024.490 18.45 18.38 10.723 3.56852 4.99473 31.90 1488.96 1024.495 18.75 18.68 10.711 3.56803 4.99575 31.91 1488.93 1024.503 19.05 18.98 10.702 3.56707 4.99568 31.90 1488.90 1024.505 19.35 19.27 10.694 3.56778 4.99779 31.92 1488.89 1024.518 19.65 19.57 10.689 3.56729 4.99776 31.92 1488.88 1024.520 19.95 19.87 10.685 3.56702 4.99789 31.92 1488.87 1024.522 20.25 20.17 10.680 3.56698 4.99861 31.92 1488.86 1024.528 20.55 20.47 10.677 3.56711 4.99913 31.93 1488.86 1024.532 20.85 20.77 10.673 3.56711 4.99971 31.93 1488.85 1024.537 21.15 21.07 10.667 3.56672 4.99999 31.93 1488.84 1024.540 21.45 21.36 10.656 3.56664 5.00152 31.94 1488.81 1024.551 21.75 21.66 10.654 3.56677 5.00194 31.94 1488.82 1024.554 22.05 21.96 10.632 3.56386 5.00092 31.93 1488.73 1024.552 22.35 22.26 10.619 3.56274 5.00117 31.93 1488.69 1024.555 22.65 22.56 10.616 3.56299 5.00195 31.94 1488.69 1024.561 22.95 22.86 10.593 3.56058 5.00172 31.93 1488.61 1024.563 23.25 23.15 10.565 3.55803 5.00218 31.93 1488.51 1024.569 23.55 23.45 10.551 3.55691 5.00249 31.93 1488.47 1024.573 23.85 23.75 10.536 3.55597 5.00328 31.94 1488.43 1024.579 24.15 24.05 10.514 3.55555 5.00580 31.95 1488.37 1024.596 24.45 24.35 10.504 3.55435 5.00551 31.95 1488.33 1024.597 24.75 24.65 10.484 3.55332 5.00695 31.96 1488.28 1024.608 25.05 24.95 10.473 3.55227 5.00695 31.95 1488.24 1024.609 25.35 25.24 10.462 3.55217 5.00837 31.96 1488.22 1024.620 25.65 25.54 10.453 3.55171 5.00909 31.97 1488.19 1024.625 25.95 25.84 10.444 3.55109 5.00946 31.97 1488.17 1024.629 26.25 26.14 10.435 3.54918 5.00803 31.96 1488.13 1024.623 26.55 26.44 10.418 3.54908 5.01023 31.97 1488.09 1024.638 26.85 26.74 10.414 3.54886 5.01053 31.97 1488.08 1024.641 27.15 27.03 10.407 3.54832 5.01071 31.97 1488.06 1024.644 27.45 27.33 10.402 3.54762 5.01055 31.97 1488.04 1024.645 27.75 27.63 10.416 3.54833 5.00945 31.96 1488.09 1024.639 28.05 27.93 10.377 3.54690 5.01302 31.98 1487.98 1024.663 28.35 28.23 10.328 3.54472 5.01684 32.00 1487.84 1024.689 28.65 28.53 10.309 3.54156 5.01503 31.99 1487.76 1024.681 28.95 28.83 10.293 3.53855 5.01317 31.97 1487.68 1024.673 29.25 29.12 10.248 3.53655 5.01670 31.99 1487.55 1024.697 29.55 29.42 10.217 3.53319 5.01635 31.99 1487.43 1024.699 29.85 29.72 10.178 3.53278 5.02132 32.02 1487.33 1024.730 30.15 30.02 10.162 3.52946 5.01878 32.00 1487.26 1024.718 30.45 30.32 10.125 3.52824 5.02241 32.02 1487.15 1024.742 30.75 30.62 10.110 3.52746 5.02340 32.02 1487.11 1024.750 31.05 30.91 10.095 3.52638 5.02404 32.03 1487.07 1024.756 31.35 31.21 10.075 3.52590 5.02621 32.04 1487.01 1024.770 31.65 31.51 10.059 3.52495 5.02723 32.04 1486.96 1024.778 31.95 31.81 10.040 3.52330 5.02759 32.04 1486.90 1024.783 32.25 32.11 10.019 3.52085 5.02711 32.04 1486.82 1024.783 32.55 32.41 9.995 3.51958 5.02869 32.04 1486.75 1024.794 32.85 32.71 9.987 3.51902 5.02906 32.05 1486.73 1024.798 33.15 33.00 9.974 3.51911 5.03107 32.06 1486.70 1024.811 33.45 33.30 9.968 3.51852 5.03111 32.06 1486.68 1024.813 33.75 33.60 9.965 3.51856 5.03153 32.06 1486.68 1024.817 34.05 33.90 9.963 3.51851 5.03175 32.06 1486.68 1024.819 34.35 34.20 9.955 3.51785 5.03191 32.06 1486.66 1024.822 34.65 34.50 9.947 3.51740 5.03250 32.06 1486.64 1024.827 34.95 34.79 9.939 3.51690 5.03286 32.07 1486.62 1024.831 35.25 35.09 9.935 3.51690 5.03356 32.07 1486.61 1024.836 35.55 35.39 9.933 3.51681 5.03366 32.07 1486.61 1024.838 35.85 35.69 9.935 3.51681 5.03339 32.07 1486.62 1024.838 36.15 35.99 9.940 3.51708 5.03299 32.07 1486.64 1024.836 36.45 36.29 9.938 3.51692 5.03308 32.07 1486.64 1024.838 36.75 36.58 9.934 3.51682 5.03358 32.07 1486.63 1024.843 37.05 36.88 9.933 3.51746 5.03456 32.08 1486.64 1024.849 37.35 37.18 9.941 3.51651 5.03200 32.06 1486.65 1024.836 37.65 37.48 9.935 3.51599 5.03220 32.06 1486.64 1024.839 37.95 37.78 9.917 3.51653 5.03550 32.08 1486.60 1024.859 38.25 38.08 9.919 3.51638 5.03505 32.08 1486.61 1024.858 38.55 38.38 9.920 3.51655 5.03517 32.08 1486.62 1024.860 38.76 38.59 9.919 3.51696 5.03589 32.08 1486.63 1024.865