*2026/01/16 10:37:54.80 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 19:28:58.000 END TIME : UTC 2025/05/28 19:29:21.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 117 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.91 2 Depth metres 0.15 34.77 3 Temperature 'deg C (ITS90)' 9.61 13.004 4 Conductivity S/m 2.52649 3.4997 5 Conductance:Specific S/m 3.32789 4.94289 6 Salinity PSS-78 20.53 31.39 7 Speed:Sound m/s 1482.97 1490.75 8 Density kg/m^3 1015.221 1024.354 $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 : 164 LATITUDE : 49 56.90380 N ! (deg min) LONGITUDE : 126 48.90730 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_192858 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 117 117 MERGEHDR 1.3 2026/01/16 10:35:45 117 117 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:42 117 117 CALIB 12.1 2026/01/16 10:37:18 117 117 CLEAN 5.3 2026/01/16 10:37:54 117 117 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 10:36:42 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 12.959 2.52649 3.32789 20.53 1482.97 1015.221 0.45 0.45 13.004 2.58665 3.40315 21.04 1483.74 1015.610 0.75 0.75 12.959 2.78387 3.66695 22.84 1485.70 1017.004 1.05 1.05 12.789 3.28384 4.34492 27.53 1490.65 1020.655 1.35 1.35 12.577 3.33351 4.43560 28.14 1490.66 1021.174 1.65 1.65 12.446 3.36853 4.49788 28.57 1490.72 1021.529 1.95 1.95 12.407 3.37924 4.51691 28.70 1490.75 1021.639 2.25 2.25 12.245 3.38990 4.55084 28.93 1490.46 1021.844 2.55 2.55 12.061 3.40668 4.59601 29.23 1490.19 1022.112 2.85 2.85 11.907 3.42281 4.63707 29.50 1489.99 1022.354 3.15 3.15 11.842 3.42707 4.65110 29.60 1489.88 1022.439 3.45 3.45 11.740 3.43804 4.67893 29.78 1489.75 1022.603 3.75 3.75 11.578 3.44467 4.70864 29.98 1489.42 1022.783 4.05 4.04 11.479 3.45569 4.73650 30.16 1489.30 1022.947 4.35 4.34 11.422 3.46038 4.75041 30.25 1489.22 1023.030 4.65 4.64 11.380 3.46224 4.75840 30.31 1489.14 1023.079 4.95 4.94 11.352 3.46377 4.76424 30.34 1489.09 1023.115 5.25 5.24 11.330 3.46414 4.76758 30.37 1489.04 1023.136 5.55 5.54 11.307 3.46522 4.77212 30.40 1489.00 1023.165 5.85 5.84 11.294 3.46637 4.77534 30.42 1488.99 1023.185 6.15 6.14 11.275 3.46842 4.78075 30.45 1488.97 1023.218 6.45 6.44 11.243 3.46876 4.78537 30.48 1488.89 1023.247 6.75 6.73 11.232 3.46979 4.78827 30.50 1488.88 1023.265 7.05 7.03 11.221 3.47011 4.79025 30.51 1488.86 1023.279 7.35 7.33 11.212 3.46944 4.79049 30.51 1488.84 1023.282 7.65 7.63 11.205 3.47052 4.79292 30.53 1488.84 1023.297 7.95 7.93 11.195 3.47208 4.79629 30.55 1488.84 1023.318 8.25 8.23 11.181 3.47294 4.79936 30.57 1488.82 1023.337 8.55 8.53 11.159 3.47403 4.80381 30.60 1488.78 1023.365 8.85 8.83 11.131 3.47606 4.81029 30.64 1488.74 1023.404 9.15 9.13 11.130 3.48112 4.81752 30.70 1488.80 1023.445 9.45 9.42 11.137 3.48554 4.82263 30.73 1488.87 1023.474 9.75 9.72 11.141 3.48813 4.82576 30.75 1488.92 1023.492 10.05 10.02 11.136 3.48978 4.82861 30.77 1488.93 1023.510 10.35 10.32 11.116 3.49024 4.83196 30.80 1488.89 1023.531 10.65 10.62 11.099 3.48885 4.83238 30.80 1488.83 1023.536 10.95 10.92 11.095 3.49020 4.83473 30.81 1488.84 1023.551 11.25 11.22 11.075 3.49071 4.83816 30.83 1488.80 1023.573 11.55 11.52 11.055 3.49036 4.84030 30.85 1488.75 1023.587 11.85 11.81 11.046 3.49005 4.84111 30.85 1488.73 1023.594 12.15 12.11 11.039 3.48968 4.84152 30.85 1488.71 1023.598 12.45 12.41 11.039 3.49007 4.84207 30.86 1488.72 1023.602 12.75 12.71 11.040 3.49026 4.84215 30.86 1488.73 1023.604 13.05 13.01 11.048 3.49197 4.84355 30.87 1488.78 1023.612 13.35 13.31 11.053 3.49174 4.84244 30.86 1488.79 1023.607 13.65 13.61 11.060 3.49256 4.84276 30.86 1488.82 1023.609 13.95 13.91 11.057 3.49292 4.84359 30.87 1488.83 1023.615 14.25 14.20 11.039 3.49180 4.84451 30.87 1488.77 1023.623 14.55 14.50 11.024 3.49171 4.84636 30.89 1488.74 1023.636 14.85 14.80 11.016 3.49187 4.84765 30.89 1488.73 1023.645 15.15 15.10 11.008 3.49067 4.84711 30.89 1488.69 1023.644 15.45 15.40 10.998 3.48966 4.84708 30.89 1488.66 1023.646 15.75 15.70 11.000 3.49019 4.84745 30.89 1488.68 1023.649 16.05 16.00 11.007 3.49096 4.84766 30.89 1488.71 1023.651 16.35 16.30 11.000 3.49235 4.85042 30.91 1488.72 1023.668 16.65 16.59 10.994 3.49412 4.85369 30.93 1488.73 1023.688 16.95 16.89 10.997 3.49580 4.85566 30.95 1488.76 1023.700 17.25 17.19 11.001 3.49603 4.85543 30.95 1488.78 1023.699 17.55 17.49 11.003 3.49606 4.85520 30.94 1488.79 1023.699 17.85 17.79 11.002 3.49798 4.85807 30.96 1488.81 1023.716 18.15 18.09 11.002 3.49839 4.85864 30.97 1488.82 1023.721 18.45 18.39 11.004 3.49970 4.86019 30.98 1488.84 1023.730 18.75 18.68 11.005 3.49794 4.85753 30.96 1488.83 1023.717 19.05 18.98 10.998 3.49938 4.86048 30.98 1488.84 1023.735 19.35 19.28 10.969 3.49829 4.86295 31.00 1488.75 1023.752 19.65 19.58 10.947 3.49889 4.86680 31.02 1488.71 1023.777 19.95 19.88 10.921 3.49560 4.86564 31.01 1488.61 1023.774 20.25 20.18 10.899 3.49315 4.86519 31.00 1488.53 1023.774 20.55 20.48 10.892 3.49403 4.86739 31.02 1488.53 1023.788 20.85 20.78 10.876 3.49326 4.86856 31.02 1488.48 1023.797 21.15 21.07 10.858 3.49209 4.86933 31.03 1488.43 1023.804 21.45 21.37 10.843 3.49078 4.86952 31.03 1488.38 1023.808 21.75 21.67 10.825 3.48929 4.86991 31.03 1488.32 1023.813 22.05 21.97 10.803 3.48762 4.87057 31.03 1488.25 1023.819 22.35 22.27 10.774 3.48267 4.86755 31.00 1488.12 1023.806 22.65 22.57 10.746 3.48048 4.86835 31.01 1488.03 1023.814 22.95 22.87 10.721 3.48033 4.87152 31.03 1487.97 1023.835 23.25 23.17 10.705 3.48048 4.87395 31.04 1487.94 1023.851 23.55 23.46 10.695 3.47912 4.87339 31.04 1487.90 1023.850 23.85 23.76 10.677 3.47807 4.87442 31.04 1487.84 1023.858 24.15 24.06 10.656 3.47735 4.87631 31.05 1487.79 1023.872 24.45 24.36 10.621 3.47643 4.87978 31.07 1487.69 1023.895 24.75 24.66 10.596 3.47422 4.88013 31.07 1487.61 1023.900 25.05 24.96 10.567 3.47329 4.88274 31.09 1487.53 1023.918 25.35 25.26 10.546 3.47169 4.88334 31.09 1487.46 1023.924 25.65 25.55 10.518 3.46982 4.88454 31.09 1487.37 1023.934 25.95 25.85 10.467 3.46662 4.88707 31.10 1487.21 1023.953 26.25 26.15 10.431 3.46447 4.88897 31.11 1487.09 1023.968 26.55 26.45 10.395 3.46080 4.88889 31.11 1486.96 1023.971 26.85 26.75 10.364 3.45889 4.89034 31.12 1486.86 1023.983 27.15 27.05 10.339 3.45618 4.89007 31.11 1486.77 1023.984 27.45 27.35 10.293 3.45396 4.89331 31.13 1486.63 1024.007 27.75 27.64 10.244 3.45248 4.89803 31.15 1486.49 1024.037 28.05 27.94 10.210 3.45152 4.90137 31.17 1486.40 1024.059 28.35 28.24 10.176 3.44746 4.90036 31.16 1486.26 1024.057 28.65 28.54 10.126 3.44294 4.90086 31.16 1486.09 1024.065 28.95 28.84 10.073 3.44095 4.90539 31.18 1485.93 1024.094 29.25 29.14 10.024 3.43813 4.90826 31.20 1485.77 1024.115 29.55 29.44 9.961 3.43739 4.91602 31.25 1485.61 1024.163 29.85 29.74 9.923 3.43437 4.91700 31.25 1485.48 1024.172 30.15 30.03 9.891 3.43164 4.91764 31.25 1485.37 1024.179 30.45 30.33 9.877 3.43185 4.91995 31.26 1485.34 1024.194 30.75 30.63 9.857 3.43069 4.92111 31.27 1485.28 1024.202 31.05 30.93 9.818 3.42885 4.92389 31.28 1485.16 1024.221 31.35 31.23 9.814 3.42836 4.92384 31.28 1485.15 1024.223 31.65 31.53 9.834 3.42836 4.92097 31.26 1485.20 1024.207 31.95 31.83 9.832 3.42760 4.92017 31.26 1485.19 1024.204 32.25 32.12 9.797 3.42545 4.92203 31.27 1485.08 1024.218 32.55 32.42 9.750 3.42442 4.92722 31.30 1484.95 1024.250 32.85 32.72 9.709 3.42244 4.93013 31.31 1484.83 1024.270 33.15 33.02 9.682 3.42285 4.93460 31.34 1484.76 1024.297 33.45 33.32 9.660 3.42147 4.93581 31.34 1484.69 1024.307 33.75 33.62 9.648 3.42069 4.93639 31.35 1484.66 1024.312 34.05 33.91 9.633 3.42124 4.93929 31.36 1484.63 1024.330 34.35 34.21 9.624 3.42098 4.94023 31.37 1484.61 1024.337 34.65 34.51 9.615 3.42126 4.94194 31.38 1484.59 1024.348 34.91 34.77 9.610 3.42150 4.94289 31.39 1484.59 1024.354