*2026/01/16 09:57:54.06 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 23:41:42.000 END TIME : UTC 2024/08/15 23:42:06.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 123 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.63 2 Depth metres 0.15 36.46 3 Temperature 'deg C (ITS90)' 9.643 18.403 4 Conductivity S/m 3.50488 4.00716 5 Conductance:Specific S/m 4.61578 5.0594 6 Salinity PSS-78 29.78 32.21 7 Speed:Sound m/s 1485.74 1511.06 8 Density kg/m^3 1021.185 1025.001 $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 : 221 LATITUDE : 48 52.92640 N ! (deg min) LONGITUDE : 125 4.57190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_234142 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 123 123 MERGEHDR 1.3 2026/01/16 09:54:02 123 123 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 123 123 CALIB 12.1 2026/01/16 09:56:54 123 123 CLEAN 5.3 2026/01/16 09:57:54 123 123 $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 09:56:21 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 18.403 4.00716 4.61621 29.78 1511.06 1021.185 0.45 0.45 18.381 4.00689 4.61821 29.79 1511.02 1021.201 0.75 0.75 18.382 4.00483 4.61578 29.78 1511.00 1021.189 1.05 1.05 18.377 4.00531 4.61687 29.78 1511.00 1021.198 1.35 1.35 18.362 4.00603 4.61923 29.80 1510.98 1021.215 1.65 1.65 18.341 4.00256 4.61748 29.79 1510.91 1021.211 1.95 1.95 18.327 4.00320 4.61979 29.80 1510.89 1021.228 2.25 2.25 18.291 3.99991 4.61976 29.80 1510.79 1021.236 2.55 2.55 18.271 4.00089 4.62311 29.82 1510.76 1021.260 2.85 2.84 18.233 3.99858 4.62440 29.83 1510.66 1021.276 3.15 3.14 18.164 3.99672 4.62966 29.87 1510.50 1021.321 3.45 3.44 18.071 3.99660 4.63954 29.93 1510.31 1021.395 3.75 3.74 17.678 3.99233 4.67730 30.19 1509.43 1021.684 4.05 4.04 16.767 3.97519 4.75881 30.73 1507.30 1022.310 4.35 4.34 15.201 3.82103 4.75243 30.59 1502.25 1022.550 4.65 4.64 13.579 3.70172 4.79754 30.79 1497.22 1023.041 4.95 4.94 11.915 3.64341 4.93492 31.61 1492.57 1023.999 5.25 5.24 11.567 3.62377 4.95492 31.72 1491.49 1024.146 5.55 5.54 11.465 3.61593 4.95801 31.73 1491.16 1024.174 5.85 5.84 11.385 3.61067 4.96173 31.75 1490.90 1024.203 6.15 6.13 11.328 3.60622 4.96341 31.75 1490.71 1024.219 6.45 6.43 11.263 3.60358 4.96867 31.78 1490.53 1024.255 6.75 6.73 11.219 3.60137 4.97168 31.80 1490.40 1024.277 7.05 7.03 11.201 3.60003 4.97229 31.80 1490.34 1024.283 7.35 7.33 11.184 3.59904 4.97325 31.81 1490.29 1024.291 7.65 7.63 11.165 3.59801 4.97440 31.81 1490.24 1024.300 7.95 7.93 11.152 3.59865 4.97715 31.83 1490.22 1024.318 8.25 8.22 11.137 3.59734 4.97743 31.83 1490.17 1024.322 8.55 8.52 11.115 3.59545 4.97778 31.83 1490.10 1024.327 8.85 8.82 11.093 3.59357 4.97813 31.83 1490.03 1024.332 9.15 9.12 11.080 3.59213 4.97794 31.83 1489.98 1024.334 9.45 9.42 11.054 3.59123 4.98028 31.84 1489.91 1024.350 9.75 9.72 11.023 3.59070 4.98386 31.86 1489.83 1024.374 10.05 10.02 10.982 3.58737 4.98502 31.87 1489.69 1024.385 10.35 10.31 10.954 3.58565 4.98643 31.87 1489.61 1024.396 10.65 10.61 10.908 3.58171 4.98739 31.87 1489.45 1024.407 10.95 10.91 10.864 3.57603 4.98559 31.86 1489.28 1024.402 11.25 11.21 10.823 3.57337 4.98754 31.86 1489.15 1024.417 11.55 11.51 10.753 3.56808 4.98991 31.87 1488.92 1024.437 11.85 11.81 10.703 3.56777 4.99646 31.91 1488.79 1024.479 12.15 12.10 10.678 3.56686 4.99872 31.93 1488.72 1024.494 12.45 12.40 10.640 3.56575 5.00247 31.95 1488.62 1024.519 12.75 12.70 10.610 3.56418 5.00448 31.96 1488.53 1024.534 13.05 13.00 10.590 3.56229 5.00465 31.96 1488.46 1024.538 13.35 13.30 10.571 3.56023 5.00443 31.95 1488.40 1024.539 13.65 13.60 10.542 3.55875 5.00641 31.96 1488.31 1024.553 13.95 13.90 10.515 3.55624 5.00671 31.96 1488.22 1024.558 14.25 14.19 10.491 3.55440 5.00749 31.96 1488.14 1024.566 14.55 14.49 10.456 3.55173 5.00858 31.97 1488.02 1024.576 14.85 14.79 10.413 3.54972 5.01185 31.99 1487.90 1024.598 15.15 15.09 10.394 3.54848 5.01289 31.99 1487.84 1024.607 15.45 15.39 10.381 3.54775 5.01363 31.99 1487.80 1024.613 15.75 15.69 10.369 3.54705 5.01438 32.00 1487.77 1024.619 16.05 15.99 10.362 3.54729 5.01564 32.01 1487.76 1024.628 16.35 16.28 10.354 3.54710 5.01658 32.01 1487.74 1024.635 16.65 16.58 10.345 3.54616 5.01654 32.01 1487.71 1024.636 16.95 16.88 10.332 3.54583 5.01784 32.02 1487.68 1024.646 17.25 17.18 10.317 3.54488 5.01867 32.02 1487.63 1024.653 17.55 17.48 10.310 3.54455 5.01917 32.02 1487.62 1024.657 17.85 17.78 10.296 3.54302 5.01897 32.02 1487.57 1024.658 18.15 18.07 10.281 3.54191 5.01956 32.02 1487.52 1024.664 18.45 18.37 10.267 3.54136 5.02082 32.03 1487.48 1024.673 18.75 18.67 10.260 3.54174 5.02227 32.04 1487.48 1024.683 19.05 18.97 10.254 3.54007 5.02080 32.03 1487.44 1024.677 19.35 19.27 10.242 3.53945 5.02158 32.03 1487.41 1024.683 19.65 19.57 10.231 3.53914 5.02278 32.04 1487.38 1024.692 19.95 19.87 10.228 3.53878 5.02265 32.04 1487.38 1024.692 20.25 20.16 10.224 3.53879 5.02321 32.04 1487.37 1024.697 20.55 20.46 10.213 3.53849 5.02438 32.05 1487.35 1024.705 20.85 20.76 10.183 3.53648 5.02580 32.05 1487.25 1024.717 21.15 21.06 10.161 3.53376 5.02506 32.05 1487.17 1024.715 21.45 21.36 10.150 3.53279 5.02532 32.05 1487.13 1024.719 21.75 21.66 10.123 3.53191 5.02795 32.06 1487.06 1024.736 22.05 21.95 10.109 3.53158 5.02949 32.07 1487.02 1024.747 22.35 22.25 10.099 3.53077 5.02976 32.07 1486.99 1024.750 22.65 22.55 10.093 3.53091 5.03074 32.08 1486.98 1024.757 22.95 22.85 10.085 3.53067 5.03153 32.08 1486.96 1024.764 23.25 23.15 10.082 3.53049 5.03182 32.08 1486.96 1024.767 23.55 23.45 10.071 3.52983 5.03238 32.08 1486.93 1024.772 23.85 23.74 10.062 3.52888 5.03235 32.08 1486.90 1024.773 24.15 24.04 10.055 3.52838 5.03260 32.08 1486.88 1024.776 24.45 24.34 10.034 3.52752 5.03437 32.09 1486.82 1024.789 24.75 24.64 10.020 3.52647 5.03490 32.10 1486.78 1024.794 25.05 24.94 10.015 3.52646 5.03565 32.10 1486.77 1024.800 25.35 25.24 10.015 3.52726 5.03674 32.11 1486.78 1024.807 25.65 25.54 10.016 3.52682 5.03601 32.10 1486.78 1024.804 25.95 25.83 10.011 3.52622 5.03590 32.10 1486.77 1024.805 26.25 26.13 9.986 3.52426 5.03662 32.10 1486.69 1024.812 26.55 26.43 9.971 3.52378 5.03817 32.11 1486.65 1024.823 26.85 26.73 9.971 3.52382 5.03818 32.11 1486.65 1024.824 27.15 27.03 9.955 3.52258 5.03877 32.11 1486.60 1024.830 27.45 27.33 9.945 3.52204 5.03936 32.12 1486.57 1024.835 27.75 27.62 9.945 3.52262 5.04020 32.12 1486.59 1024.841 28.05 27.92 9.932 3.52195 5.04115 32.13 1486.55 1024.848 28.35 28.22 9.939 3.52178 5.03994 32.12 1486.57 1024.842 28.65 28.52 9.929 3.52172 5.04121 32.13 1486.55 1024.851 28.95 28.82 9.915 3.52123 5.04252 32.13 1486.51 1024.860 29.25 29.12 9.915 3.52060 5.04163 32.13 1486.51 1024.857 29.55 29.41 9.910 3.52020 5.04177 32.13 1486.50 1024.859 29.85 29.71 9.906 3.51908 5.04073 32.12 1486.48 1024.855 30.15 30.01 9.882 3.51752 5.04206 32.13 1486.40 1024.865 30.45 30.31 9.875 3.51740 5.04283 32.13 1486.39 1024.871 30.75 30.61 9.867 3.51860 5.04572 32.15 1486.39 1024.888 31.05 30.91 9.848 3.51684 5.04596 32.15 1486.32 1024.892 31.35 31.21 9.816 3.51441 5.04715 32.15 1486.21 1024.902 31.65 31.50 9.801 3.51287 5.04713 32.15 1486.16 1024.904 31.95 31.80 9.771 3.51091 5.04869 32.16 1486.06 1024.916 32.25 32.10 9.759 3.51057 5.04983 32.16 1486.04 1024.924 32.55 32.40 9.738 3.50968 5.05158 32.17 1485.98 1024.936 32.85 32.70 9.731 3.50971 5.05264 32.18 1485.96 1024.944 33.15 33.00 9.731 3.50830 5.05067 32.16 1485.95 1024.934 33.45 33.29 9.724 3.50985 5.05390 32.19 1485.96 1024.953 33.75 33.59 9.734 3.51032 5.05311 32.18 1485.99 1024.950 34.05 33.89 9.741 3.50898 5.05019 32.16 1486.00 1024.934 34.35 34.19 9.723 3.50849 5.05217 32.17 1485.95 1024.948 34.65 34.49 9.713 3.50771 5.05241 32.17 1485.92 1024.951 34.95 34.79 9.716 3.50780 5.05212 32.17 1485.93 1024.950 35.25 35.08 9.698 3.50668 5.05320 32.18 1485.88 1024.959 35.55 35.38 9.671 3.50575 5.05572 32.19 1485.80 1024.975 35.85 35.68 9.658 3.50598 5.05804 32.21 1485.78 1024.990 36.15 35.98 9.658 3.50569 5.05750 32.20 1485.78 1024.988 36.45 36.28 9.643 3.50547 5.05940 32.21 1485.74 1025.001 36.63 36.46 9.643 3.50488 5.05853 32.21 1485.74 1024.997