*2026/01/16 10:37:54.30 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 18:06:24.000 END TIME : UTC 2025/05/27 18:06:47.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 120 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.77 2 Depth metres 0.15 35.63 3 Temperature 'deg C (ITS90)' 9.792 11.699 4 Conductivity S/m 2.75489 3.42109 5 Conductance:Specific S/m 3.75471 4.91647 6 Salinity PSS-78 23.35 31.22 7 Speed:Sound m/s 1481.84 1485.47 8 Density kg/m^3 1017.617 1024.201 $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 : 153 LATITUDE : 49 46.88360 N ! (deg min) LONGITUDE : 126 38.63590 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_180624 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 120 120 MERGEHDR 1.3 2026/01/16 10:35:44 120 120 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 120 120 CALIB 12.1 2026/01/16 10:37:17 120 120 CLEAN 5.3 2026/01/16 10:37:54 120 120 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:41 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 11.686 2.75489 3.75471 23.35 1481.84 1017.617 0.45 0.45 11.695 2.77626 3.78289 23.55 1482.10 1017.767 0.75 0.75 11.699 2.78907 3.79994 23.66 1482.26 1017.858 1.05 1.05 11.665 2.87943 3.92664 24.53 1483.18 1018.536 1.35 1.35 11.597 2.88533 3.94205 24.63 1483.06 1018.627 1.65 1.65 11.572 2.95173 4.03545 25.27 1483.75 1019.130 1.95 1.95 11.558 3.00682 4.11242 25.81 1484.33 1019.545 2.25 2.25 11.513 3.04809 4.17403 26.23 1484.68 1019.882 2.55 2.55 11.461 3.07975 4.22335 26.57 1484.91 1020.153 2.85 2.85 11.432 3.10107 4.25601 26.79 1485.08 1020.334 3.15 3.15 11.409 3.12950 4.29765 27.08 1485.35 1020.562 3.45 3.45 11.375 3.14001 4.31619 27.20 1485.38 1020.667 3.75 3.75 11.312 3.14595 4.33185 27.31 1485.29 1020.759 4.05 4.05 11.208 3.15222 4.35288 27.44 1485.09 1020.884 4.35 4.35 11.080 3.16669 4.38841 27.68 1484.92 1021.089 4.65 4.65 10.925 3.22564 4.48942 28.37 1485.20 1021.652 4.95 4.95 10.784 3.28032 4.58344 29.01 1485.47 1022.177 5.25 5.25 10.593 3.31715 4.65985 29.53 1485.41 1022.611 5.55 5.55 10.430 3.32386 4.69079 29.73 1485.07 1022.794 5.85 5.85 10.330 3.33323 4.71723 29.90 1484.93 1022.947 6.15 6.14 10.274 3.33968 4.73397 30.01 1484.86 1023.044 6.45 6.44 10.244 3.35615 4.76127 30.20 1484.99 1023.197 6.75 6.74 10.226 3.36250 4.77278 30.28 1485.02 1023.262 7.05 7.04 10.212 3.36508 4.77829 30.32 1485.02 1023.295 7.35 7.34 10.200 3.36592 4.78111 30.33 1485.00 1023.312 7.65 7.64 10.194 3.36615 4.78223 30.34 1485.00 1023.320 7.95 7.94 10.190 3.36746 4.78465 30.36 1485.01 1023.335 8.25 8.24 10.189 3.36623 4.78311 30.35 1484.99 1023.328 8.55 8.53 10.191 3.36774 4.78497 30.36 1485.02 1023.339 8.85 8.83 10.194 3.36840 4.78550 30.36 1485.04 1023.343 9.15 9.13 10.203 3.37117 4.78826 30.38 1485.10 1023.359 9.45 9.43 10.210 3.37188 4.78826 30.38 1485.14 1023.360 9.75 9.73 10.215 3.37120 4.78657 30.37 1485.15 1023.351 10.05 10.03 10.218 3.37150 4.78657 30.37 1485.16 1023.352 10.35 10.33 10.217 3.37056 4.78538 30.36 1485.15 1023.347 10.65 10.63 10.213 3.37198 4.78802 30.38 1485.16 1023.363 10.95 10.93 10.213 3.37153 4.78740 30.38 1485.16 1023.361 11.25 11.22 10.215 3.37280 4.78881 30.39 1485.19 1023.370 11.55 11.52 10.219 3.37227 4.78761 30.38 1485.20 1023.364 11.85 11.82 10.218 3.37290 4.78855 30.39 1485.21 1023.371 12.15 12.12 10.218 3.37291 4.78864 30.39 1485.21 1023.373 12.45 12.42 10.222 3.37377 4.78933 30.39 1485.24 1023.378 12.75 12.72 10.225 3.37333 4.78833 30.39 1485.24 1023.373 13.05 13.02 10.223 3.37622 4.79259 30.42 1485.28 1023.398 13.35 13.32 10.216 3.37741 4.79528 30.43 1485.28 1023.414 13.65 13.61 10.206 3.37929 4.79927 30.46 1485.28 1023.438 13.95 13.91 10.193 3.38509 4.80927 30.53 1485.32 1023.495 14.25 14.21 10.178 3.38877 4.81666 30.58 1485.33 1023.538 14.55 14.51 10.162 3.39062 4.82141 30.61 1485.32 1023.566 14.85 14.81 10.155 3.39391 4.82703 30.65 1485.35 1023.599 15.15 15.11 10.145 3.39551 4.83078 30.67 1485.34 1023.622 15.45 15.41 10.130 3.39665 4.83434 30.70 1485.32 1023.643 15.75 15.71 10.111 3.39630 4.83646 30.71 1485.28 1023.658 16.05 16.00 10.083 3.39656 4.84081 30.74 1485.21 1023.685 16.35 16.30 10.067 3.39671 4.84318 30.75 1485.18 1023.700 16.65 16.60 10.051 3.39597 4.84437 30.76 1485.13 1023.709 16.95 16.90 10.042 3.39606 4.84569 30.77 1485.11 1023.718 17.25 17.20 10.033 3.39632 4.84732 30.78 1485.10 1023.729 17.55 17.50 10.021 3.39603 4.84863 30.78 1485.07 1023.738 17.85 17.80 10.009 3.39599 4.85023 30.79 1485.04 1023.749 18.15 18.10 9.999 3.39766 4.85395 30.82 1485.04 1023.771 18.45 18.39 9.995 3.40051 4.85849 30.85 1485.07 1023.798 18.75 18.69 9.991 3.40363 4.86360 30.88 1485.10 1023.827 19.05 18.99 9.981 3.40589 4.86824 30.92 1485.11 1023.855 19.35 19.29 9.979 3.40808 4.87159 30.94 1485.13 1023.874 19.65 19.59 9.983 3.40897 4.87228 30.94 1485.16 1023.879 19.95 19.89 9.990 3.40995 4.87281 30.95 1485.19 1023.883 20.25 20.19 9.990 3.40962 4.87225 30.94 1485.20 1023.881 20.55 20.49 9.991 3.41057 4.87349 30.95 1485.21 1023.889 20.85 20.78 9.992 3.41072 4.87358 30.95 1485.22 1023.891 21.15 21.08 9.992 3.41032 4.87302 30.95 1485.22 1023.889 21.45 21.38 9.993 3.41060 4.87329 30.95 1485.23 1023.892 21.75 21.68 9.992 3.41066 4.87347 30.95 1485.24 1023.894 22.05 21.98 9.992 3.41054 4.87330 30.95 1485.24 1023.894 22.35 22.28 9.991 3.41014 4.87286 30.95 1485.24 1023.893 22.65 22.58 9.990 3.41113 4.87440 30.96 1485.25 1023.903 22.95 22.87 9.987 3.41035 4.87370 30.95 1485.24 1023.901 23.25 23.17 9.986 3.41075 4.87444 30.96 1485.25 1023.906 23.55 23.47 9.983 3.41003 4.87388 30.95 1485.23 1023.905 23.85 23.77 9.980 3.41182 4.87681 30.97 1485.25 1023.922 24.15 24.07 9.978 3.41232 4.87784 30.98 1485.26 1023.929 24.45 24.37 9.974 3.41260 4.87870 30.99 1485.26 1023.935 24.75 24.67 9.971 3.41308 4.87990 30.99 1485.26 1023.943 25.05 24.97 9.964 3.41359 4.88163 31.01 1485.25 1023.955 25.35 25.26 9.958 3.41464 4.88398 31.02 1485.25 1023.969 25.65 25.56 9.953 3.41558 4.88590 31.03 1485.26 1023.981 25.95 25.86 9.947 3.41519 4.88626 31.04 1485.24 1023.985 26.25 26.16 9.939 3.41639 4.88907 31.05 1485.24 1024.002 26.55 26.46 9.931 3.41672 4.89061 31.06 1485.23 1024.012 26.85 26.76 9.924 3.41746 4.89265 31.08 1485.23 1024.025 27.15 27.06 9.914 3.41779 4.89455 31.09 1485.21 1024.038 27.45 27.35 9.905 3.41793 4.89612 31.10 1485.19 1024.048 27.75 27.65 9.894 3.41820 4.89793 31.11 1485.17 1024.060 28.05 27.95 9.884 3.41850 4.89979 31.12 1485.15 1024.072 28.35 28.25 9.870 3.41864 4.90193 31.13 1485.12 1024.086 28.65 28.55 9.860 3.41858 4.90336 31.14 1485.10 1024.096 28.95 28.85 9.858 3.41860 4.90365 31.15 1485.10 1024.099 29.25 29.15 9.857 3.41852 4.90358 31.14 1485.10 1024.100 29.55 29.44 9.855 3.41814 4.90336 31.14 1485.10 1024.100 29.85 29.74 9.852 3.41854 4.90439 31.15 1485.10 1024.107 30.15 30.04 9.848 3.41856 4.90499 31.15 1485.09 1024.112 30.45 30.34 9.845 3.41789 4.90440 31.15 1485.08 1024.110 30.75 30.64 9.843 3.41882 4.90605 31.16 1485.09 1024.121 31.05 30.94 9.837 3.41750 4.90497 31.15 1485.07 1024.116 31.35 31.24 9.833 3.41787 4.90615 31.16 1485.06 1024.124 31.65 31.53 9.828 3.41801 4.90694 31.16 1485.06 1024.130 31.95 31.83 9.828 3.41718 4.90583 31.16 1485.05 1024.125 32.25 32.13 9.832 3.41720 4.90530 31.15 1485.07 1024.123 32.55 32.43 9.828 3.41786 4.90676 31.16 1485.07 1024.133 32.85 32.73 9.818 3.41822 4.90866 31.17 1485.06 1024.145 33.15 33.03 9.810 3.41876 4.91061 31.19 1485.05 1024.158 33.45 33.33 9.807 3.41884 4.91114 31.19 1485.04 1024.162 33.75 33.63 9.804 3.41873 4.91146 31.19 1485.04 1024.165 34.05 33.92 9.802 3.41969 4.91309 31.20 1485.05 1024.176 34.35 34.22 9.801 3.41998 4.91368 31.21 1485.06 1024.180 34.65 34.52 9.799 3.42029 4.91435 31.21 1485.06 1024.185 34.95 34.82 9.799 3.42030 4.91435 31.21 1485.06 1024.187 35.25 35.12 9.796 3.42034 4.91481 31.21 1485.06 1024.191 35.55 35.42 9.792 3.42109 4.91647 31.22 1485.07 1024.201 35.77 35.63 9.792 3.42074 4.91603 31.22 1485.06 1024.200