*2026/01/16 10:37:44.48 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/22 21:31:32.000 END TIME : UTC 2025/01/22 21:31:55.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.26 2 Depth metres 0.15 35.11 3 Temperature 'deg C (ITS90)' 9.068 10.305 4 Conductivity S/m 2.92191 3.50226 5 Conductance:Specific S/m 4.28838 4.96003 6 Salinity PSS-78 26.77 31.6 7 Speed:Sound m/s 1476.38 1487.37 8 Density kg/m^3 1020.677 1024.406 $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 : 19 LATITUDE : 48 57.43770 N ! (deg min) LONGITUDE : 124 59.62270 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250122_213132 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 118 118 MERGEHDR 1.3 2026/01/16 10:35:38 118 118 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 118 118 CALIB 12.1 2026/01/16 10:37:10 118 118 CLEAN 5.3 2026/01/16 10:37:44 118 118 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 9.068 2.92191 4.28838 26.77 1476.38 1020.677 0.45 0.45 9.141 3.02031 4.42323 27.71 1477.80 1021.401 0.75 0.75 9.310 3.12673 4.55656 28.66 1479.59 1022.115 1.05 1.05 9.522 3.20475 4.64166 29.28 1481.14 1022.568 1.35 1.35 9.543 3.21636 4.65557 29.38 1481.34 1022.643 1.65 1.65 9.542 3.22243 4.66456 29.44 1481.42 1022.694 1.95 1.94 9.574 3.23489 4.67825 29.54 1481.66 1022.768 2.25 2.24 9.620 3.24181 4.68205 29.57 1481.87 1022.787 2.55 2.54 9.650 3.25956 4.70361 29.73 1482.18 1022.904 2.85 2.84 9.682 3.26819 4.71167 29.79 1482.37 1022.947 3.15 3.14 9.716 3.28286 4.72818 29.91 1482.65 1023.037 3.45 3.44 9.747 3.29133 4.73611 29.96 1482.84 1023.080 3.75 3.74 9.772 3.29651 4.74020 30.00 1482.98 1023.102 4.05 4.04 9.815 3.29942 4.73850 29.99 1483.13 1023.091 4.35 4.34 9.898 3.31578 4.75072 30.09 1483.55 1023.154 4.65 4.64 9.916 3.33909 4.78155 30.30 1483.89 1023.323 4.95 4.93 9.980 3.37378 4.82250 30.60 1484.49 1023.544 5.25 5.23 10.119 3.40962 4.85432 30.84 1485.29 1023.711 5.55 5.53 10.165 3.42976 4.87668 31.00 1485.66 1023.832 5.85 5.83 10.185 3.43084 4.87541 31.00 1485.73 1023.825 6.15 6.13 10.188 3.42892 4.87227 30.97 1485.72 1023.808 6.45 6.43 10.181 3.42554 4.86844 30.95 1485.66 1023.789 6.75 6.73 10.163 3.42422 4.86902 30.95 1485.61 1023.795 7.05 7.03 10.147 3.42328 4.87000 30.95 1485.56 1023.803 7.35 7.32 10.129 3.41902 4.86644 30.93 1485.46 1023.785 7.65 7.62 10.109 3.41564 4.86429 30.91 1485.38 1023.776 7.95 7.92 10.082 3.41482 4.86693 30.92 1485.30 1023.794 8.25 8.22 10.048 3.41066 4.86569 30.91 1485.17 1023.791 8.55 8.52 10.031 3.40677 4.86250 30.89 1485.08 1023.775 8.85 8.82 10.027 3.40627 4.86228 30.88 1485.07 1023.776 9.15 9.12 10.049 3.41460 4.87116 30.95 1485.23 1023.824 9.45 9.41 10.062 3.41542 4.87056 30.95 1485.28 1023.821 9.75 9.71 10.066 3.41576 4.87046 30.95 1485.30 1023.822 10.05 10.01 10.059 3.42266 4.88135 31.02 1485.37 1023.884 10.35 10.31 10.076 3.42557 4.88300 31.04 1485.46 1023.893 10.65 10.61 10.092 3.42689 4.88271 31.03 1485.52 1023.891 10.95 10.91 10.112 3.42827 4.88194 31.03 1485.59 1023.887 11.25 11.21 10.132 3.42871 4.87976 31.02 1485.65 1023.875 11.55 11.51 10.149 3.42990 4.87907 31.02 1485.72 1023.871 11.85 11.80 10.161 3.43312 4.88195 31.04 1485.79 1023.888 12.15 12.10 10.165 3.43669 4.88654 31.07 1485.85 1023.914 12.45 12.40 10.178 3.44032 4.88981 31.09 1485.93 1023.932 12.75 12.70 10.203 3.44304 4.89029 31.10 1486.03 1023.934 13.05 13.00 10.217 3.44416 4.88989 31.10 1486.09 1023.932 13.35 13.30 10.224 3.44411 4.88892 31.09 1486.11 1023.928 13.65 13.60 10.225 3.44478 4.88973 31.10 1486.12 1023.933 13.95 13.89 10.226 3.44515 4.89002 31.10 1486.14 1023.936 14.25 14.19 10.230 3.44633 4.89114 31.11 1486.17 1023.943 14.55 14.49 10.231 3.44646 4.89125 31.11 1486.18 1023.945 14.85 14.79 10.235 3.44693 4.89141 31.11 1486.19 1023.947 15.15 15.09 10.234 3.44736 4.89213 31.12 1486.20 1023.952 15.45 15.39 10.236 3.44757 4.89214 31.12 1486.22 1023.954 15.75 15.69 10.234 3.44734 4.89210 31.12 1486.21 1023.955 16.05 15.99 10.232 3.44901 4.89477 31.13 1486.23 1023.971 16.35 16.28 10.232 3.44999 4.89614 31.14 1486.25 1023.980 16.65 16.58 10.229 3.44955 4.89591 31.14 1486.24 1023.980 16.95 16.88 10.235 3.44931 4.89471 31.13 1486.26 1023.974 17.25 17.18 10.230 3.44943 4.89560 31.14 1486.25 1023.981 17.55 17.48 10.238 3.45178 4.89787 31.16 1486.30 1023.994 17.85 17.78 10.243 3.45417 4.90046 31.18 1486.35 1024.009 18.15 18.08 10.249 3.45612 4.90236 31.19 1486.40 1024.020 18.45 18.37 10.251 3.45590 4.90185 31.19 1486.40 1024.019 18.75 18.67 10.255 3.45654 4.90224 31.19 1486.43 1024.022 19.05 18.97 10.258 3.45787 4.90371 31.20 1486.45 1024.031 19.35 19.27 10.259 3.45805 4.90383 31.20 1486.46 1024.033 19.65 19.57 10.259 3.45801 4.90369 31.20 1486.47 1024.033 19.95 19.87 10.256 3.45880 4.90531 31.21 1486.47 1024.044 20.25 20.17 10.260 3.46036 4.90685 31.22 1486.51 1024.053 20.55 20.47 10.263 3.46126 4.90774 31.23 1486.53 1024.059 20.85 20.76 10.265 3.46137 4.90764 31.23 1486.54 1024.059 21.15 21.06 10.266 3.46307 4.90986 31.24 1486.57 1024.073 21.45 21.36 10.264 3.46459 4.91238 31.26 1486.59 1024.088 21.75 21.66 10.264 3.46570 4.91390 31.27 1486.61 1024.098 22.05 21.96 10.265 3.46694 4.91557 31.28 1486.63 1024.108 22.35 22.26 10.264 3.46791 4.91711 31.29 1486.64 1024.118 22.65 22.56 10.263 3.46905 4.91880 31.31 1486.66 1024.129 22.95 22.85 10.260 3.47049 4.92128 31.32 1486.68 1024.144 23.25 23.15 10.267 3.47122 4.92140 31.32 1486.71 1024.145 23.55 23.45 10.268 3.47219 4.92255 31.33 1486.73 1024.153 23.85 23.75 10.271 3.47186 4.92168 31.33 1486.73 1024.149 24.15 24.05 10.278 3.47359 4.92319 31.34 1486.78 1024.158 24.45 24.35 10.275 3.47379 4.92393 31.34 1486.78 1024.164 24.75 24.65 10.281 3.47525 4.92513 31.35 1486.81 1024.171 25.05 24.94 10.286 3.47588 4.92531 31.35 1486.84 1024.173 25.35 25.24 10.284 3.47556 4.92518 31.35 1486.84 1024.174 25.65 25.54 10.283 3.47663 4.92683 31.36 1486.85 1024.184 25.95 25.84 10.285 3.47708 4.92708 31.37 1486.87 1024.187 26.25 26.14 10.285 3.47704 4.92711 31.37 1486.87 1024.188 26.55 26.44 10.288 3.47749 4.92733 31.37 1486.89 1024.190 26.85 26.74 10.284 3.47780 4.92829 31.37 1486.89 1024.197 27.15 27.03 10.287 3.47798 4.92808 31.37 1486.90 1024.197 27.45 27.33 10.287 3.47881 4.92933 31.38 1486.92 1024.205 27.75 27.63 10.286 3.47849 4.92902 31.38 1486.91 1024.205 28.05 27.93 10.284 3.47873 4.92955 31.38 1486.92 1024.209 28.35 28.23 10.280 3.47884 4.93027 31.39 1486.91 1024.215 28.65 28.53 10.288 3.47862 4.92895 31.38 1486.94 1024.208 28.95 28.83 10.286 3.47915 4.92992 31.38 1486.94 1024.215 29.25 29.12 10.287 3.47980 4.93077 31.39 1486.96 1024.221 29.55 29.42 10.288 3.48069 4.93186 31.40 1486.98 1024.228 29.85 29.72 10.288 3.48375 4.93620 31.43 1487.02 1024.253 30.15 30.02 10.290 3.48496 4.93765 31.44 1487.04 1024.262 30.45 30.32 10.291 3.48570 4.93856 31.45 1487.06 1024.268 30.75 30.62 10.288 3.48661 4.94026 31.46 1487.07 1024.279 31.05 30.92 10.283 3.48761 4.94228 31.47 1487.07 1024.292 31.35 31.21 10.284 3.48746 4.94195 31.47 1487.08 1024.291 31.65 31.51 10.285 3.48721 4.94146 31.46 1487.08 1024.290 31.95 31.81 10.286 3.48841 4.94305 31.48 1487.10 1024.300 32.25 32.11 10.287 3.48906 4.94386 31.48 1487.12 1024.305 32.55 32.41 10.286 3.49046 4.94589 31.50 1487.14 1024.318 32.85 32.71 10.284 3.49510 4.95282 31.54 1487.19 1024.358 33.15 33.01 10.287 3.49582 4.95342 31.55 1487.21 1024.362 33.45 33.30 10.294 3.49623 4.95302 31.55 1487.24 1024.360 33.75 33.60 10.299 3.49675 4.95304 31.55 1487.27 1024.361 34.05 33.90 10.301 3.49765 4.95405 31.55 1487.29 1024.368 34.35 34.20 10.302 3.49873 4.95538 31.56 1487.31 1024.377 34.65 34.50 10.300 3.49855 4.95542 31.56 1487.30 1024.378 34.95 34.80 10.301 3.50098 4.95876 31.59 1487.34 1024.398 35.26 35.11 10.305 3.50226 4.96003 31.60 1487.37 1024.406