*2026/01/16 10:37:51.05 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 17:01:18.000 END TIME : UTC 2025/04/09 17:01:39.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 106 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.59 2 Depth metres 0.15 31.52 3 Temperature 'deg C (ITS90)' 8.813 9.878 4 Conductivity S/m 1.34646 3.18786 5 Conductance:Specific S/m 1.94967 4.64563 6 Salinity PSS-78 11.35 29.2 7 Speed:Sound m/s 1459.3 1482.03 8 Density kg/m^3 1008.603 1022.754 $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 : 97 LATITUDE : 49 37.78370 N ! (deg min) LONGITUDE : 126 29.54080 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_170118 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 106 106 MERGEHDR 1.3 2026/01/16 10:35:41 106 106 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 106 106 CALIB 12.1 2026/01/16 10:37:14 106 106 CLEAN 5.3 2026/01/16 10:37:51 106 106 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:12 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 9.467 1.36031 1.97333 11.49 1459.30 1008.723 0.45 0.45 9.530 1.34646 1.94967 11.35 1459.37 1008.603 0.75 0.76 9.750 1.54233 2.21915 13.07 1462.32 1009.916 1.05 1.06 9.842 2.19913 3.15590 19.18 1470.07 1014.659 1.35 1.36 9.776 2.67632 3.84795 23.83 1475.47 1018.288 1.65 1.66 9.800 2.79806 4.02024 25.01 1476.99 1019.203 1.95 1.96 9.846 2.92156 4.19213 26.20 1478.60 1020.121 2.25 2.26 9.854 2.95421 4.23804 26.51 1479.02 1020.368 2.55 2.56 9.849 2.98162 4.27797 26.79 1479.34 1020.584 2.85 2.86 9.858 3.02337 4.33666 27.20 1479.88 1020.901 3.15 3.16 9.868 3.07230 4.40562 27.67 1480.50 1021.274 3.45 3.46 9.877 3.09878 4.44250 27.93 1480.85 1021.474 3.75 3.76 9.878 3.10472 4.45084 27.99 1480.93 1021.521 4.05 4.06 9.877 3.10537 4.45194 28.00 1480.94 1021.528 4.35 4.36 9.872 3.10621 4.45369 28.01 1480.94 1021.539 4.65 4.66 9.859 3.10633 4.45551 28.02 1480.91 1021.551 4.95 4.96 9.853 3.10735 4.45779 28.03 1480.91 1021.565 5.25 5.25 9.860 3.11420 4.46670 28.10 1481.02 1021.614 5.55 5.55 9.866 3.11964 4.47382 28.15 1481.10 1021.654 5.85 5.85 9.878 3.12640 4.48194 28.20 1481.22 1021.698 6.15 6.15 9.874 3.13017 4.48788 28.25 1481.26 1021.732 6.45 6.45 9.871 3.13220 4.49115 28.27 1481.28 1021.751 6.75 6.75 9.864 3.13420 4.49490 28.29 1481.29 1021.773 7.05 7.05 9.864 3.13890 4.50162 28.34 1481.36 1021.811 7.35 7.35 9.870 3.14734 4.51301 28.42 1481.48 1021.873 7.65 7.65 9.869 3.15189 4.51964 28.47 1481.53 1021.911 7.95 7.95 9.870 3.15505 4.52404 28.50 1481.58 1021.936 8.25 8.25 9.874 3.15491 4.52328 28.49 1481.60 1021.933 8.55 8.55 9.873 3.15544 4.52415 28.50 1481.60 1021.939 8.85 8.85 9.874 3.15649 4.52561 28.51 1481.62 1021.948 9.15 9.15 9.877 3.15700 4.52585 28.51 1481.64 1021.950 9.45 9.44 9.873 3.15907 4.52935 28.53 1481.66 1021.971 9.75 9.74 9.867 3.15950 4.53079 28.54 1481.66 1021.980 10.05 10.04 9.867 3.16093 4.53290 28.56 1481.68 1021.993 10.35 10.34 9.862 3.16038 4.53274 28.55 1481.66 1021.994 10.65 10.64 9.854 3.16026 4.53362 28.56 1481.64 1022.000 10.95 10.94 9.849 3.16143 4.53592 28.58 1481.65 1022.014 11.25 11.24 9.848 3.16317 4.53855 28.59 1481.67 1022.030 11.55 11.54 9.842 3.16450 4.54122 28.61 1481.68 1022.046 11.85 11.84 9.838 3.16513 4.54268 28.62 1481.68 1022.056 12.15 12.14 9.835 3.16553 4.54366 28.63 1481.68 1022.062 12.45 12.44 9.829 3.16605 4.54512 28.64 1481.68 1022.072 12.75 12.74 9.823 3.16651 4.54656 28.65 1481.67 1022.082 13.05 13.03 9.824 3.16691 4.54708 28.65 1481.68 1022.086 13.35 13.33 9.827 3.16843 4.54881 28.66 1481.71 1022.096 13.65 13.63 9.826 3.16972 4.55076 28.67 1481.73 1022.108 13.95 13.93 9.831 3.17279 4.55450 28.70 1481.79 1022.129 14.25 14.23 9.835 3.17476 4.55689 28.72 1481.83 1022.143 14.55 14.53 9.836 3.17883 4.56259 28.76 1481.88 1022.176 14.85 14.83 9.841 3.17949 4.56284 28.76 1481.91 1022.178 15.15 15.13 9.852 3.18023 4.56253 28.76 1481.95 1022.177 15.45 15.43 9.858 3.18398 4.56702 28.79 1482.02 1022.202 15.75 15.73 9.853 3.18572 4.57027 28.81 1482.03 1022.221 16.05 16.03 9.835 3.18424 4.57050 28.81 1481.97 1022.225 16.35 16.33 9.819 3.18245 4.57002 28.81 1481.91 1022.225 16.65 16.62 9.803 3.17795 4.56556 28.77 1481.82 1022.203 16.95 16.92 9.777 3.17267 4.56150 28.74 1481.69 1022.184 17.25 17.22 9.740 3.17087 4.56371 28.75 1481.57 1022.199 17.55 17.52 9.721 3.17008 4.56506 28.76 1481.51 1022.209 17.85 17.82 9.715 3.17149 4.56789 28.78 1481.52 1022.226 18.15 18.12 9.717 3.17304 4.56988 28.79 1481.55 1022.238 18.45 18.42 9.709 3.17662 4.57610 28.84 1481.57 1022.274 18.75 18.72 9.698 3.17693 4.57800 28.85 1481.55 1022.286 19.05 19.02 9.690 3.17502 4.57621 28.83 1481.51 1022.278 19.35 19.32 9.684 3.17152 4.57200 28.80 1481.46 1022.257 19.65 19.62 9.680 3.17148 4.57248 28.81 1481.45 1022.261 19.95 19.92 9.667 3.17428 4.57819 28.84 1481.46 1022.294 20.25 20.21 9.665 3.17811 4.58406 28.89 1481.50 1022.327 20.55 20.51 9.669 3.18053 4.58706 28.91 1481.55 1022.345 20.85 20.81 9.678 3.18175 4.58758 28.91 1481.59 1022.348 21.15 21.11 9.686 3.18314 4.58854 28.92 1481.63 1022.354 21.45 21.41 9.688 3.18468 4.59044 28.93 1481.66 1022.366 21.75 21.71 9.693 3.18663 4.59263 28.95 1481.71 1022.379 22.05 22.01 9.697 3.18638 4.59177 28.94 1481.72 1022.375 22.35 22.31 9.696 3.18702 4.59276 28.95 1481.73 1022.382 22.65 22.61 9.694 3.18775 4.59410 28.96 1481.74 1022.390 22.95 22.91 9.692 3.18770 4.59425 28.96 1481.74 1022.393 23.25 23.21 9.685 3.18786 4.59541 28.97 1481.72 1022.401 23.55 23.50 9.670 3.18640 4.59527 28.96 1481.67 1022.402 23.85 23.80 9.653 3.18599 4.59700 28.97 1481.62 1022.414 24.15 24.10 9.614 3.18453 4.60006 28.99 1481.50 1022.434 24.45 24.40 9.570 3.18112 4.60102 28.99 1481.35 1022.443 24.75 24.70 9.508 3.17619 4.60212 28.99 1481.12 1022.454 25.05 25.00 9.421 3.16715 4.60067 28.97 1480.78 1022.453 25.35 25.30 9.406 3.16343 4.59716 28.94 1480.70 1022.436 25.65 25.60 9.348 3.16017 4.60025 28.96 1480.51 1022.457 25.95 25.90 9.290 3.15989 4.60765 29.00 1480.35 1022.502 26.25 26.20 9.265 3.15861 4.60908 29.01 1480.27 1022.512 26.55 26.50 9.238 3.15775 4.61151 29.02 1480.19 1022.528 26.85 26.79 9.222 3.15676 4.61224 29.02 1480.14 1022.534 27.15 27.09 9.202 3.15624 4.61406 29.03 1480.08 1022.546 27.45 27.39 9.181 3.15446 4.61436 29.03 1480.01 1022.550 27.75 27.69 9.142 3.15258 4.61683 29.05 1479.88 1022.567 28.05 27.99 9.100 3.14816 4.61613 29.04 1479.72 1022.566 28.35 28.29 9.080 3.14570 4.61516 29.03 1479.64 1022.563 28.65 28.59 9.073 3.14358 4.61305 29.01 1479.59 1022.554 28.95 28.89 9.046 3.14168 4.61395 29.01 1479.50 1022.561 29.25 29.19 9.016 3.14035 4.61603 29.02 1479.41 1022.575 29.55 29.49 8.978 3.13979 4.62030 29.05 1479.30 1022.601 29.85 29.79 8.943 3.13864 4.62342 29.07 1479.19 1022.621 30.15 30.08 8.900 3.13818 4.62854 29.10 1479.08 1022.652 30.45 30.38 8.870 3.13759 4.63186 29.11 1478.99 1022.673 30.75 30.68 8.851 3.13970 4.63753 29.15 1478.97 1022.706 31.05 30.98 8.837 3.13913 4.63858 29.16 1478.93 1022.713 31.35 31.28 8.816 3.14193 4.64563 29.20 1478.91 1022.754 31.59 31.52 8.813 3.14152 4.64544 29.20 1478.90 1022.754