*2026/01/16 09:57:56.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/18 14:40:47.000 END TIME : UTC 2024/10/18 14:41:07.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 102 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.58 2 Depth metres 0.15 30.44 3 Temperature 'deg C (ITS90)' 10.632 12.123 4 Conductivity S/m 3.02733 3.54436 5 Conductance:Specific S/m 4.08773 4.97202 6 Salinity PSS-78 25.67 31.73 7 Speed:Sound m/s 1485.81 1490.54 8 Density kg/m^3 1019.354 1024.422 $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 : 295 LATITUDE : 48 53.03970 N ! (deg min) LONGITUDE : 125 3.37820 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241018_144047 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 102 102 MERGEHDR 1.3 2026/01/16 09:54:10 102 102 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 102 102 CALIB 12.1 2026/01/16 09:56:58 102 102 CLEAN 5.3 2026/01/16 09:57:56 102 102 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 12.030 3.02733 4.08773 25.67 1485.81 1019.354 0.45 0.45 12.118 3.06829 4.13319 26.00 1486.51 1019.590 0.75 0.75 12.123 3.12535 4.20947 26.53 1487.16 1020.001 1.05 1.05 12.065 3.33128 4.49382 28.51 1489.32 1021.548 1.35 1.35 11.997 3.32492 4.49347 28.50 1489.08 1021.555 1.65 1.65 11.921 3.40717 4.61414 29.34 1489.83 1022.222 1.95 1.95 11.817 3.48595 4.73417 30.18 1490.47 1022.891 2.25 2.25 11.682 3.52137 4.79984 30.63 1490.54 1023.267 2.55 2.54 11.419 3.53175 4.84881 30.95 1490.01 1023.563 2.85 2.84 11.210 3.53062 4.87522 31.12 1489.48 1023.729 3.15 3.14 11.023 3.52945 4.89893 31.26 1489.00 1023.877 3.45 3.44 10.916 3.52880 4.91253 31.35 1488.73 1023.963 3.75 3.74 10.859 3.52819 4.91950 31.39 1488.58 1024.007 4.05 4.04 10.825 3.52801 4.92393 31.42 1488.50 1024.036 4.35 4.34 10.801 3.52766 4.92674 31.43 1488.44 1024.054 4.65 4.64 10.788 3.52720 4.92798 31.44 1488.41 1024.064 4.95 4.93 10.783 3.52765 4.92924 31.45 1488.40 1024.072 5.25 5.23 10.776 3.52742 4.92985 31.45 1488.39 1024.077 5.55 5.53 10.769 3.52806 4.93170 31.46 1488.38 1024.089 5.85 5.83 10.764 3.52703 4.93099 31.46 1488.36 1024.087 6.15 6.13 10.758 3.52741 4.93239 31.47 1488.36 1024.097 6.45 6.43 10.750 3.52684 4.93269 31.47 1488.33 1024.100 6.75 6.73 10.743 3.52724 4.93420 31.48 1488.33 1024.110 7.05 7.02 10.737 3.52771 4.93561 31.49 1488.32 1024.120 7.35 7.32 10.734 3.52733 4.93547 31.49 1488.32 1024.120 7.65 7.62 10.734 3.52801 4.93648 31.49 1488.33 1024.127 7.95 7.92 10.733 3.52767 4.93620 31.49 1488.33 1024.127 8.25 8.22 10.730 3.52737 4.93620 31.49 1488.32 1024.129 8.55 8.52 10.726 3.52785 4.93737 31.50 1488.32 1024.137 8.85 8.82 10.724 3.52768 4.93737 31.50 1488.32 1024.138 9.15 9.11 10.722 3.52841 4.93875 31.51 1488.33 1024.147 9.45 9.41 10.720 3.52845 4.93909 31.51 1488.33 1024.151 9.75 9.71 10.715 3.52792 4.93897 31.51 1488.31 1024.151 10.05 10.01 10.712 3.52869 4.94053 31.52 1488.32 1024.162 10.35 10.31 10.709 3.52884 4.94114 31.52 1488.32 1024.166 10.65 10.61 10.704 3.52907 4.94210 31.53 1488.31 1024.173 10.95 10.91 10.697 3.52981 4.94410 31.54 1488.31 1024.186 11.25 11.21 10.684 3.52948 4.94546 31.55 1488.28 1024.196 11.55 11.50 10.676 3.52988 4.94711 31.56 1488.27 1024.207 11.85 11.80 10.673 3.53007 4.94781 31.56 1488.27 1024.212 12.15 12.10 10.671 3.52899 4.94656 31.56 1488.25 1024.207 12.45 12.40 10.661 3.52931 4.94843 31.57 1488.24 1024.219 12.75 12.70 10.649 3.53056 4.95182 31.59 1488.23 1024.240 13.05 13.00 10.642 3.53121 4.95374 31.60 1488.22 1024.253 13.35 13.30 10.638 3.53150 4.95465 31.61 1488.22 1024.259 13.65 13.59 10.636 3.53193 4.95563 31.62 1488.22 1024.266 13.95 13.89 10.635 3.53208 4.95585 31.62 1488.23 1024.269 14.25 14.19 10.632 3.53207 4.95626 31.62 1488.23 1024.272 14.55 14.49 10.632 3.53238 4.95682 31.62 1488.23 1024.277 14.85 14.79 10.632 3.53263 4.95711 31.62 1488.24 1024.280 15.15 15.09 10.632 3.53332 4.95808 31.63 1488.25 1024.286 15.45 15.39 10.633 3.53311 4.95767 31.63 1488.26 1024.285 15.75 15.68 10.634 3.53341 4.95790 31.63 1488.27 1024.287 16.05 15.98 10.637 3.53373 4.95800 31.63 1488.29 1024.289 16.35 16.28 10.640 3.53389 4.95776 31.63 1488.30 1024.289 16.65 16.58 10.643 3.53512 4.95901 31.64 1488.33 1024.297 16.95 16.88 10.647 3.53624 4.96009 31.65 1488.36 1024.304 17.25 17.18 10.653 3.53673 4.95994 31.65 1488.38 1024.304 17.55 17.48 10.655 3.53678 4.95966 31.64 1488.39 1024.303 17.85 17.77 10.656 3.53689 4.95980 31.65 1488.40 1024.305 18.15 18.07 10.655 3.53769 4.96100 31.65 1488.41 1024.313 18.45 18.37 10.655 3.53741 4.96067 31.65 1488.41 1024.312 18.75 18.67 10.653 3.53718 4.96054 31.65 1488.41 1024.313 19.05 18.97 10.653 3.53692 4.96017 31.65 1488.41 1024.312 19.35 19.27 10.652 3.53717 4.96062 31.65 1488.42 1024.316 19.65 19.57 10.652 3.53788 4.96163 31.66 1488.43 1024.323 19.95 19.86 10.652 3.53793 4.96173 31.66 1488.44 1024.325 20.25 20.16 10.651 3.53819 4.96226 31.66 1488.44 1024.329 20.55 20.46 10.652 3.53798 4.96189 31.66 1488.45 1024.328 20.85 20.76 10.652 3.53843 4.96242 31.66 1488.46 1024.333 21.15 21.06 10.652 3.53792 4.96177 31.66 1488.46 1024.330 21.45 21.36 10.651 3.53774 4.96164 31.66 1488.46 1024.331 21.75 21.66 10.651 3.53775 4.96169 31.66 1488.46 1024.332 22.05 21.95 10.650 3.53876 4.96313 31.67 1488.48 1024.342 22.35 22.25 10.649 3.53882 4.96343 31.67 1488.48 1024.345 22.65 22.55 10.648 3.53905 4.96389 31.67 1488.48 1024.349 22.95 22.85 10.649 3.53939 4.96429 31.67 1488.49 1024.352 23.25 23.15 10.648 3.53945 4.96446 31.68 1488.50 1024.354 23.55 23.45 10.649 3.53943 4.96432 31.67 1488.50 1024.355 23.85 23.75 10.649 3.53983 4.96478 31.68 1488.51 1024.358 24.15 24.04 10.649 3.54076 4.96618 31.69 1488.53 1024.367 24.45 24.34 10.649 3.54024 4.96543 31.68 1488.53 1024.365 24.75 24.64 10.648 3.54072 4.96625 31.69 1488.54 1024.370 25.05 24.94 10.648 3.54114 4.96688 31.69 1488.55 1024.375 25.35 25.24 10.646 3.54127 4.96723 31.69 1488.55 1024.378 25.65 25.54 10.646 3.54192 4.96825 31.70 1488.56 1024.385 25.95 25.83 10.645 3.54221 4.96874 31.70 1488.57 1024.389 26.25 26.13 10.643 3.54238 4.96919 31.71 1488.57 1024.393 26.55 26.43 10.641 3.54208 4.96913 31.71 1488.56 1024.394 26.85 26.73 10.643 3.54209 4.96887 31.70 1488.57 1024.394 27.15 27.03 10.640 3.54237 4.96960 31.71 1488.58 1024.400 27.45 27.33 10.644 3.54254 4.96929 31.71 1488.59 1024.399 27.75 27.63 10.644 3.54293 4.96988 31.71 1488.60 1024.403 28.05 27.92 10.645 3.54317 4.97014 31.71 1488.61 1024.406 28.35 28.22 10.642 3.54366 4.97112 31.72 1488.62 1024.413 28.65 28.52 10.643 3.54436 4.97202 31.73 1488.63 1024.419 28.95 28.82 10.644 3.54376 4.97100 31.72 1488.63 1024.415 29.25 29.12 10.644 3.54390 4.97123 31.72 1488.64 1024.417 29.55 29.42 10.645 3.54322 4.97021 31.71 1488.63 1024.413 29.85 29.72 10.643 3.54345 4.97079 31.72 1488.64 1024.417 30.15 30.01 10.641 3.54300 4.97039 31.71 1488.63 1024.416 30.58 30.44 10.642 3.54352 4.97100 31.72 1488.65 1024.422