*2026/01/16 10:37:54.09 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/09 00:56:32.000 END TIME : UTC 2025/05/09 00:56:57.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 129 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.68 2 Depth metres 0.15 38.5 3 Temperature 'deg C (ITS90)' 9.039 13.045 4 Conductivity S/m 3.31883 3.44915 5 Conductance:Specific S/m 4.36553 5.05438 6 Salinity PSS-78 27.69 32.09 7 Speed:Sound m/s 1483.29 1492.03 8 Density kg/m^3 1020.735 1025.005 $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 : 146 LATITUDE : 48 51.04520 N ! (deg min) LONGITUDE : 125 7.63850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250509_005632 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 129 129 MERGEHDR 1.3 2026/01/16 10:35:44 129 129 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 129 129 CALIB 12.1 2026/01/16 10:37:17 129 129 CLEAN 5.3 2026/01/16 10:37:54 129 129 $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 13.045 3.32272 4.36683 27.70 1491.71 1020.738 0.45 0.45 13.031 3.32069 4.36572 27.69 1491.66 1020.735 0.75 0.75 13.012 3.31883 4.36553 27.69 1491.60 1020.737 1.05 1.05 12.972 3.32604 4.37963 27.78 1491.58 1020.820 1.35 1.35 12.943 3.35200 4.41718 28.04 1491.79 1021.029 1.65 1.65 12.925 3.35245 4.41980 28.06 1491.76 1021.047 1.95 1.95 12.912 3.35890 4.42991 28.13 1491.80 1021.105 2.25 2.25 12.895 3.38329 4.46403 28.37 1492.03 1021.294 2.55 2.55 12.838 3.39268 4.48313 28.50 1492.00 1021.406 2.85 2.85 12.702 3.40636 4.51742 28.73 1491.81 1021.610 3.15 3.14 12.424 3.43086 4.58382 29.17 1491.39 1022.007 3.45 3.44 12.112 3.43930 4.63373 29.50 1490.70 1022.316 3.75 3.74 11.824 3.43602 4.66543 29.69 1489.94 1022.521 4.05 4.04 11.537 3.43489 4.70056 29.91 1489.21 1022.744 4.35 4.34 11.332 3.43351 4.72516 30.07 1488.68 1022.900 4.65 4.64 11.138 3.43293 4.74980 30.22 1488.18 1023.054 4.95 4.94 10.843 3.43115 4.78636 30.45 1487.41 1023.281 5.25 5.24 10.614 3.43018 4.81579 30.63 1486.81 1023.463 5.55 5.54 10.343 3.42937 4.85153 30.85 1486.11 1023.681 5.85 5.84 10.138 3.42777 4.87761 31.01 1485.57 1023.840 6.15 6.13 9.948 3.42459 4.89954 31.14 1485.05 1023.974 6.45 6.43 9.657 3.42183 4.93665 31.36 1484.26 1024.197 6.75 6.73 9.605 3.42003 4.94146 31.39 1484.11 1024.228 7.05 7.03 9.560 3.42052 4.94871 31.43 1484.00 1024.272 7.35 7.33 9.523 3.42054 4.95405 31.47 1483.91 1024.304 7.65 7.63 9.488 3.42024 4.95859 31.49 1483.82 1024.332 7.95 7.93 9.460 3.41941 4.96146 31.51 1483.74 1024.351 8.25 8.22 9.444 3.41887 4.96294 31.52 1483.70 1024.361 8.55 8.52 9.430 3.41892 4.96510 31.53 1483.67 1024.375 8.85 8.82 9.413 3.41898 4.96751 31.55 1483.63 1024.391 9.15 9.12 9.390 3.41975 4.97203 31.57 1483.58 1024.418 9.45 9.42 9.375 3.42047 4.97525 31.59 1483.56 1024.438 9.75 9.72 9.368 3.42081 4.97680 31.60 1483.55 1024.448 10.05 10.02 9.358 3.42169 4.97943 31.62 1483.54 1024.464 10.35 10.31 9.349 3.42275 4.98237 31.64 1483.53 1024.482 10.65 10.61 9.341 3.42326 4.98428 31.65 1483.52 1024.494 10.95 10.91 9.337 3.42309 4.98460 31.65 1483.52 1024.497 11.25 11.21 9.333 3.42370 4.98595 31.66 1483.52 1024.506 11.55 11.51 9.332 3.42457 4.98745 31.67 1483.53 1024.516 11.85 11.81 9.331 3.42530 4.98860 31.68 1483.55 1024.523 12.15 12.10 9.329 3.42622 4.99024 31.69 1483.56 1024.534 12.45 12.40 9.328 3.42718 4.99177 31.70 1483.57 1024.543 12.75 12.70 9.329 3.42832 4.99335 31.71 1483.59 1024.553 13.05 13.00 9.327 3.42836 4.99368 31.72 1483.59 1024.557 13.35 13.30 9.327 3.42899 4.99454 31.72 1483.60 1024.563 13.65 13.60 9.327 3.42851 4.99396 31.72 1483.60 1024.561 13.95 13.90 9.325 3.42891 4.99470 31.72 1483.61 1024.566 14.25 14.19 9.326 3.43005 4.99631 31.73 1483.63 1024.576 14.55 14.49 9.325 3.43011 4.99651 31.73 1483.63 1024.579 14.85 14.79 9.326 3.43025 4.99657 31.74 1483.64 1024.580 15.15 15.09 9.324 3.43046 4.99709 31.74 1483.64 1024.584 15.45 15.39 9.324 3.43141 4.99854 31.75 1483.66 1024.594 15.75 15.69 9.325 3.43101 4.99788 31.74 1483.66 1024.591 16.05 15.99 9.324 3.43090 4.99779 31.74 1483.66 1024.592 16.35 16.28 9.325 3.43142 4.99837 31.75 1483.68 1024.596 16.65 16.58 9.325 3.43196 4.99919 31.75 1483.69 1024.602 16.95 16.88 9.323 3.43203 4.99953 31.75 1483.69 1024.605 17.25 17.18 9.323 3.43209 4.99966 31.76 1483.69 1024.608 17.55 17.48 9.322 3.43234 5.00028 31.76 1483.70 1024.612 17.85 17.78 9.321 3.43258 5.00068 31.76 1483.71 1024.616 18.15 18.07 9.319 3.43336 5.00208 31.77 1483.72 1024.625 18.45 18.37 9.318 3.43324 5.00207 31.77 1483.72 1024.626 18.75 18.67 9.318 3.43550 5.00541 31.79 1483.75 1024.646 19.05 18.97 9.319 3.43524 5.00484 31.79 1483.75 1024.644 19.35 19.27 9.320 3.43694 5.00722 31.81 1483.78 1024.658 19.65 19.57 9.321 3.43750 5.00787 31.81 1483.80 1024.663 19.95 19.87 9.323 3.43844 5.00899 31.82 1483.82 1024.670 20.25 20.16 9.323 3.43907 5.00980 31.83 1483.83 1024.676 20.55 20.46 9.325 3.44057 5.01174 31.84 1483.86 1024.688 20.85 20.76 9.326 3.44193 5.01359 31.85 1483.88 1024.699 21.15 21.06 9.327 3.44175 5.01324 31.85 1483.89 1024.699 21.45 21.36 9.328 3.44333 5.01541 31.87 1483.91 1024.712 21.75 21.66 9.329 3.44413 5.01638 31.87 1483.93 1024.718 22.05 21.95 9.331 3.44583 5.01849 31.89 1483.96 1024.731 22.35 22.25 9.331 3.44771 5.02130 31.91 1483.99 1024.748 22.65 22.55 9.322 3.44837 5.02361 31.92 1483.98 1024.762 22.95 22.85 9.315 3.44856 5.02478 31.93 1483.97 1024.770 23.25 23.15 9.313 3.44840 5.02493 31.93 1483.97 1024.772 23.55 23.45 9.307 3.44915 5.02695 31.94 1483.97 1024.785 23.85 23.75 9.298 3.44824 5.02685 31.94 1483.94 1024.786 24.15 24.04 9.287 3.44751 5.02735 31.94 1483.91 1024.791 24.45 24.34 9.280 3.44721 5.02802 31.95 1483.89 1024.796 24.75 24.64 9.277 3.44748 5.02881 31.95 1483.89 1024.802 25.05 24.94 9.272 3.44764 5.02976 31.96 1483.88 1024.809 25.35 25.24 9.268 3.44777 5.03055 31.96 1483.88 1024.814 25.65 25.54 9.266 3.44754 5.03050 31.96 1483.88 1024.816 25.95 25.83 9.263 3.44732 5.03069 31.96 1483.87 1024.818 26.25 26.13 9.258 3.44699 5.03098 31.96 1483.86 1024.821 26.55 26.43 9.253 3.44724 5.03203 31.97 1483.85 1024.828 26.85 26.73 9.248 3.44664 5.03195 31.97 1483.83 1024.830 27.15 27.03 9.241 3.44683 5.03327 31.98 1483.82 1024.838 27.45 27.33 9.231 3.44832 5.03686 32.00 1483.82 1024.860 27.75 27.62 9.223 3.44822 5.03791 32.01 1483.80 1024.867 28.05 27.92 9.215 3.44692 5.03711 32.00 1483.77 1024.865 28.35 28.22 9.202 3.44670 5.03868 32.01 1483.74 1024.875 28.65 28.52 9.189 3.44611 5.03982 32.01 1483.70 1024.883 28.95 28.82 9.172 3.44402 5.03920 32.01 1483.64 1024.882 29.25 29.12 9.155 3.44195 5.03869 32.00 1483.57 1024.881 29.55 29.42 9.141 3.44030 5.03835 32.00 1483.52 1024.881 29.85 29.71 9.127 3.43857 5.03788 31.99 1483.47 1024.880 30.15 30.01 9.112 3.43767 5.03878 32.00 1483.42 1024.887 30.45 30.31 9.102 3.43712 5.03953 32.00 1483.39 1024.893 30.75 30.61 9.092 3.43647 5.03998 32.00 1483.36 1024.897 31.05 30.91 9.086 3.43730 5.04208 32.02 1483.36 1024.910 31.35 31.21 9.079 3.43790 5.04405 32.03 1483.36 1024.923 31.65 31.50 9.075 3.43714 5.04347 32.02 1483.34 1024.921 31.95 31.80 9.076 3.43667 5.04270 32.02 1483.34 1024.918 32.25 32.10 9.071 3.43677 5.04359 32.02 1483.34 1024.924 32.55 32.40 9.064 3.43701 5.04500 32.03 1483.32 1024.934 32.85 32.70 9.058 3.43695 5.04569 32.04 1483.31 1024.939 33.15 33.00 9.055 3.43650 5.04556 32.03 1483.30 1024.940 33.45 33.29 9.053 3.43627 5.04550 32.03 1483.30 1024.941 33.75 33.59 9.051 3.43636 5.04590 32.04 1483.30 1024.944 34.05 33.89 9.048 3.43588 5.04566 32.03 1483.29 1024.944 34.35 34.19 9.045 3.43611 5.04646 32.04 1483.29 1024.950 34.65 34.49 9.045 3.43566 5.04575 32.03 1483.29 1024.948 34.95 34.79 9.047 3.43621 5.04631 32.04 1483.31 1024.952 35.25 35.08 9.046 3.43642 5.04675 32.04 1483.31 1024.956 35.55 35.38 9.044 3.43624 5.04672 32.04 1483.31 1024.957 35.85 35.68 9.043 3.43676 5.04771 32.05 1483.32 1024.964 36.15 35.98 9.039 3.43789 5.04992 32.06 1483.33 1024.977 36.45 36.28 9.040 3.43776 5.04956 32.06 1483.34 1024.976 36.75 36.58 9.040 3.43795 5.04980 32.06 1483.34 1024.979 37.05 36.87 9.045 3.44150 5.05438 32.09 1483.40 1025.005 37.35 37.17 9.057 3.44196 5.05330 32.09 1483.45 1025.000 37.65 37.47 9.068 3.44343 5.05381 32.09 1483.50 1025.004 37.95 37.77 9.080 3.44385 5.05254 32.09 1483.54 1024.997 38.25 38.07 9.085 3.44333 5.05111 32.08 1483.55 1024.990 38.68 38.50 9.089 3.44500 5.05295 32.09 1483.59 1025.002