*2026/01/16 10:37:52.08 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 23:11:38.000 END TIME : UTC 2025/04/09 23:12:02.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 125 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.43 2 Depth metres 0.15 37.33 3 Temperature 'deg C (ITS90)' 8.846 9.94 4 Conductivity S/m 1.85153 3.20914 5 Conductance:Specific S/m 2.6588 4.73721 6 Salinity PSS-78 15.91 29.85 7 Speed:Sound m/s 1466.01 1480.02 8 Density kg/m^3 1012.114 1023.276 $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 : 105 LATITUDE : 49 46.86070 N ! (deg min) LONGITUDE : 126 38.60110 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_231138 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 125 125 MERGEHDR 1.3 2026/01/16 10:35:42 125 125 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 125 125 CALIB 12.1 2026/01/16 10:37:15 125 125 CLEAN 5.3 2026/01/16 10:37:52 125 125 $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 10:37:15 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 9.819 1.85153 2.65880 15.91 1466.01 1012.114 0.45 0.45 9.901 1.88759 2.70425 16.21 1466.69 1012.339 0.75 0.76 9.940 2.00570 2.87017 17.30 1468.17 1013.182 1.05 1.06 9.933 2.13495 3.05579 18.52 1469.62 1014.136 1.35 1.36 9.851 2.29316 3.28998 20.08 1471.20 1015.354 1.65 1.66 9.732 2.55199 3.67381 22.65 1473.87 1017.372 1.95 1.96 9.684 2.64468 3.81249 23.58 1474.83 1018.109 2.25 2.26 9.689 2.69817 3.88906 24.10 1475.49 1018.516 2.55 2.56 9.616 2.77344 4.00599 24.89 1476.18 1019.144 2.85 2.86 9.529 2.83028 4.09837 25.52 1476.62 1019.644 3.15 3.16 9.462 2.85501 4.14231 25.81 1476.73 1019.884 3.45 3.46 9.428 2.86147 4.15571 25.90 1476.72 1019.959 3.75 3.76 9.392 2.86855 4.17033 26.00 1476.70 1020.041 4.05 4.06 9.337 2.87766 4.19037 26.13 1476.66 1020.153 4.35 4.36 9.288 2.88872 4.21239 26.28 1476.66 1020.275 4.65 4.66 9.257 2.90088 4.23399 26.42 1476.73 1020.394 4.95 4.96 9.239 2.91626 4.25874 26.59 1476.87 1020.529 5.25 5.26 9.223 2.92395 4.27188 26.68 1476.92 1020.602 5.55 5.56 9.191 2.94191 4.30212 26.88 1477.06 1020.768 5.85 5.86 9.160 2.94955 4.31730 26.98 1477.07 1020.852 6.15 6.16 9.130 2.96197 4.33926 27.13 1477.14 1020.974 6.45 6.46 9.113 2.96814 4.35048 27.21 1477.17 1021.036 6.75 6.76 9.094 2.97518 4.36320 27.29 1477.21 1021.107 7.05 7.06 9.075 2.98366 4.37806 27.39 1477.27 1021.189 7.35 7.35 9.063 2.99287 4.39319 27.49 1477.35 1021.273 7.65 7.65 9.053 2.99738 4.40102 27.55 1477.39 1021.317 7.95 7.95 9.037 3.00068 4.40797 27.59 1477.39 1021.356 8.25 8.25 9.023 3.00240 4.41235 27.62 1477.37 1021.382 8.55 8.55 9.011 3.00635 4.41965 27.67 1477.39 1021.423 8.85 8.85 9.004 3.01168 4.42847 27.73 1477.44 1021.473 9.15 9.15 8.997 3.01519 4.43449 27.77 1477.47 1021.507 9.45 9.45 8.989 3.01651 4.43752 27.79 1477.47 1021.525 9.75 9.75 8.980 3.01661 4.43884 27.80 1477.45 1021.534 10.05 10.05 8.971 3.02205 4.44800 27.86 1477.50 1021.585 10.35 10.35 8.960 3.03265 4.46509 27.98 1477.61 1021.679 10.65 10.65 8.951 3.04334 4.48202 28.09 1477.72 1021.772 10.95 10.95 8.944 3.04618 4.48700 28.13 1477.74 1021.801 11.25 11.25 8.937 3.04773 4.49024 28.15 1477.75 1021.820 11.55 11.55 8.931 3.04798 4.49143 28.16 1477.74 1021.828 11.85 11.84 8.926 3.04980 4.49477 28.18 1477.75 1021.848 12.15 12.14 8.921 3.05091 4.49709 28.19 1477.75 1021.862 12.45 12.44 8.916 3.05306 4.50092 28.22 1477.77 1021.884 12.75 12.74 8.912 3.05631 4.50618 28.26 1477.81 1021.914 13.05 13.04 8.907 3.05893 4.51073 28.29 1477.83 1021.940 13.35 13.34 8.902 3.06113 4.51467 28.31 1477.85 1021.963 13.65 13.64 8.896 3.06381 4.51940 28.34 1477.87 1021.990 13.95 13.94 8.891 3.06893 4.52761 28.40 1477.93 1022.036 14.25 14.24 8.888 3.07156 4.53191 28.43 1477.95 1022.061 14.55 14.54 8.886 3.07438 4.53635 28.46 1477.99 1022.086 14.85 14.84 8.885 3.07661 4.53982 28.48 1478.02 1022.106 15.15 15.14 8.884 3.07844 4.54259 28.50 1478.04 1022.123 15.45 15.44 8.884 3.07945 4.54410 28.51 1478.06 1022.132 15.75 15.73 8.885 3.08044 4.54547 28.52 1478.08 1022.141 16.05 16.03 8.884 3.08174 4.54753 28.54 1478.10 1022.153 16.35 16.33 8.883 3.08286 4.54925 28.55 1478.12 1022.164 16.65 16.63 8.883 3.08485 4.55225 28.57 1478.14 1022.181 16.95 16.93 8.879 3.08902 4.55893 28.61 1478.19 1022.219 17.25 17.23 8.877 3.09274 4.56472 28.65 1478.24 1022.252 17.55 17.53 8.869 3.09918 4.57524 28.73 1478.30 1022.310 17.85 17.83 8.865 3.10820 4.58914 28.82 1478.41 1022.387 18.15 18.13 8.863 3.11280 4.59623 28.87 1478.46 1022.427 18.45 18.43 8.858 3.11416 4.59882 28.89 1478.47 1022.443 18.75 18.73 8.855 3.11579 4.60171 28.91 1478.49 1022.460 19.05 19.02 8.853 3.11602 4.60222 28.91 1478.49 1022.464 19.35 19.32 8.854 3.11659 4.60303 28.92 1478.51 1022.470 19.65 19.62 8.853 3.11612 4.60237 28.91 1478.50 1022.467 19.95 19.92 8.854 3.11825 4.60548 28.93 1478.54 1022.485 20.25 20.22 8.854 3.12174 4.61064 28.97 1478.58 1022.515 20.55 20.52 8.854 3.12275 4.61212 28.98 1478.60 1022.524 20.85 20.82 8.855 3.12307 4.61248 28.98 1478.61 1022.527 21.15 21.12 8.854 3.12566 4.61637 29.01 1478.65 1022.550 21.45 21.42 8.852 3.12755 4.61946 29.03 1478.67 1022.568 21.75 21.72 8.850 3.12853 4.62112 29.04 1478.68 1022.578 22.05 22.02 8.848 3.13532 4.63149 29.11 1478.77 1022.636 22.35 22.31 8.846 3.14241 4.64221 29.19 1478.86 1022.695 22.65 22.61 8.846 3.14611 4.64774 29.23 1478.91 1022.727 22.95 22.91 8.846 3.14857 4.65138 29.25 1478.94 1022.748 23.25 23.21 8.846 3.14947 4.65267 29.26 1478.96 1022.756 23.55 23.51 8.846 3.15020 4.65369 29.27 1478.97 1022.763 23.85 23.81 8.847 3.15073 4.65443 29.27 1478.99 1022.768 24.15 24.11 8.848 3.15304 4.65762 29.29 1479.03 1022.787 24.45 24.41 8.848 3.15513 4.66077 29.32 1479.06 1022.805 24.75 24.71 8.851 3.15554 4.66098 29.32 1479.07 1022.808 25.05 25.01 8.854 3.15649 4.66197 29.32 1479.10 1022.814 25.35 25.30 8.852 3.15709 4.66304 29.33 1479.11 1022.821 25.65 25.60 8.852 3.15751 4.66369 29.34 1479.12 1022.826 25.95 25.90 8.853 3.15915 4.66603 29.35 1479.14 1022.840 26.25 26.20 8.852 3.15965 4.66685 29.36 1479.15 1022.846 26.55 26.50 8.850 3.15929 4.66663 29.36 1479.15 1022.846 26.85 26.80 8.849 3.16049 4.66849 29.37 1479.16 1022.857 27.15 27.10 8.849 3.16517 4.67544 29.42 1479.23 1022.897 27.45 27.40 8.849 3.16875 4.68069 29.45 1479.28 1022.926 27.75 27.70 8.850 3.17243 4.68607 29.49 1479.33 1022.957 28.05 27.99 8.850 3.17486 4.68956 29.51 1479.37 1022.977 28.35 28.29 8.850 3.17772 4.69384 29.54 1479.41 1023.002 28.65 28.59 8.850 3.18066 4.69810 29.57 1479.45 1023.026 28.95 28.89 8.851 3.18229 4.70045 29.59 1479.48 1023.040 29.25 29.19 8.852 3.18543 4.70496 29.62 1479.52 1023.066 29.55 29.49 8.853 3.18618 4.70593 29.63 1479.54 1023.073 29.85 29.79 8.853 3.19031 4.71199 29.67 1479.60 1023.107 30.15 30.09 8.854 3.19135 4.71338 29.68 1479.62 1023.116 30.45 30.39 8.855 3.19187 4.71397 29.68 1479.63 1023.120 30.75 30.69 8.857 3.19157 4.71330 29.68 1479.64 1023.118 31.05 30.98 8.859 3.19265 4.71470 29.69 1479.66 1023.126 31.35 31.28 8.862 3.19603 4.71917 29.72 1479.72 1023.152 31.65 31.58 8.868 3.19763 4.72077 29.73 1479.76 1023.162 31.95 31.88 8.871 3.19891 4.72222 29.74 1479.79 1023.171 32.25 32.18 8.868 3.19959 4.72357 29.75 1479.80 1023.180 32.55 32.48 8.869 3.20093 4.72544 29.76 1479.82 1023.191 32.85 32.78 8.871 3.20318 4.72851 29.79 1479.86 1023.209 33.15 33.08 8.872 3.20389 4.72939 29.79 1479.88 1023.215 33.45 33.38 8.873 3.20460 4.73033 29.80 1479.89 1023.221 33.75 33.67 8.875 3.20553 4.73140 29.81 1479.91 1023.228 34.05 33.97 8.876 3.20533 4.73099 29.80 1479.92 1023.227 34.35 34.27 8.878 3.20569 4.73129 29.81 1479.93 1023.230 34.65 34.57 8.878 3.20529 4.73062 29.80 1479.93 1023.228 34.95 34.87 8.878 3.20676 4.73276 29.82 1479.96 1023.241 35.25 35.17 8.880 3.20664 4.73233 29.81 1479.96 1023.240 35.55 35.47 8.881 3.20729 4.73315 29.82 1479.98 1023.245 35.85 35.77 8.890 3.20813 4.73311 29.82 1480.02 1023.246 36.15 36.06 8.887 3.20877 4.73451 29.83 1480.02 1023.255 36.45 36.36 8.885 3.20680 4.73195 29.81 1480.00 1023.242 36.75 36.66 8.877 3.20709 4.73340 29.82 1479.99 1023.252 37.05 36.96 8.871 3.20829 4.73611 29.84 1479.99 1023.268 37.43 37.33 8.872 3.20914 4.73721 29.85 1480.01 1023.276