*2026/01/16 09:47:05.72 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/20 16:53:02.000 END TIME : UTC 2023/12/20 16:53:28.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 132 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.36 2 Depth metres 0.15 39.23 3 Temperature 'deg C (ITS90)' 8.029 11.338 4 Conductivity S/m 1.33404 3.50902 5 Conductance:Specific S/m 2.01952 4.84229 6 Salinity PSS-78 11.72 30.87 7 Speed:Sound m/s 1453.87 1489.87 8 Density kg/m^3 1009.045 1023.7 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 108 LATITUDE : 50 35.16010 N ! (deg min) LONGITUDE : 127 41.74330 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231220_165302 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 132 132 MERGEHDR 1.3 2026/01/15 13:41:49 132 132 HDREDIT2 3.2 2026/01/15 14:00:58 ? ? REMOVECH 8.2 2026/01/15 14:01:18 132 132 CALIB 12.1 2026/01/16 09:46:11 132 132 CLEAN 5.3 2026/01/16 09:47:05 132 132 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:58 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:11 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 09:47:01 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 8.029 1.33404 2.01952 11.72 1453.87 1009.045 0.45 0.45 8.044 1.33703 2.02311 11.74 1453.96 1009.063 0.75 0.76 8.131 1.42460 2.14998 12.55 1455.31 1009.685 1.05 1.06 8.331 1.76005 2.64022 15.69 1459.98 1012.125 1.35 1.36 8.321 1.77786 2.66776 15.87 1460.17 1012.266 1.65 1.66 8.435 1.82925 2.73556 16.32 1461.17 1012.605 1.95 1.97 8.611 2.01599 2.99901 18.05 1463.99 1013.939 2.25 2.27 8.879 2.27726 3.36092 20.47 1467.99 1015.793 2.55 2.57 9.226 2.67403 3.90640 24.18 1473.84 1018.639 2.85 2.87 9.530 2.97295 4.30490 26.94 1478.35 1020.751 3.15 3.17 9.764 3.02741 4.35417 27.31 1479.67 1021.003 3.45 3.47 9.937 3.07369 4.39886 27.63 1480.71 1021.234 3.75 3.77 10.060 3.12932 4.46274 28.09 1481.72 1021.572 4.05 4.07 10.201 3.18976 4.53078 28.58 1482.83 1021.933 4.35 4.36 10.318 3.21889 4.55696 28.78 1483.50 1022.067 4.65 4.66 10.430 3.23534 4.56586 28.85 1484.00 1022.109 4.95 4.96 10.493 3.24894 4.57690 28.94 1484.33 1022.165 5.25 5.26 10.576 3.28596 4.61820 29.23 1485.00 1022.385 5.55 5.56 10.640 3.30910 4.64245 29.41 1485.44 1022.513 5.85 5.86 10.681 3.32950 4.66560 29.58 1485.80 1022.637 6.15 6.16 10.707 3.33703 4.67282 29.63 1485.96 1022.676 6.45 6.46 10.722 3.34139 4.67694 29.66 1486.06 1022.699 6.75 6.76 10.734 3.34477 4.68013 29.68 1486.13 1022.716 7.05 7.06 10.748 3.34809 4.68287 29.71 1486.21 1022.731 7.35 7.35 10.760 3.35389 4.68942 29.75 1486.32 1022.768 7.65 7.65 10.777 3.36048 4.69648 29.80 1486.44 1022.806 7.95 7.95 10.795 3.36708 4.70329 29.85 1486.57 1022.843 8.25 8.25 10.806 3.36896 4.70447 29.86 1486.63 1022.850 8.55 8.55 10.812 3.37214 4.70808 29.89 1486.69 1022.870 8.85 8.85 10.818 3.37599 4.71271 29.92 1486.75 1022.896 9.15 9.15 10.811 3.37889 4.71762 29.96 1486.77 1022.925 9.45 9.45 10.813 3.38511 4.72608 30.02 1486.86 1022.973 9.75 9.75 10.827 3.38727 4.72731 30.03 1486.92 1022.979 10.05 10.05 10.829 3.39221 4.73394 30.07 1486.99 1023.017 10.35 10.34 10.826 3.39499 4.73812 30.10 1487.02 1023.041 10.65 10.64 10.832 3.39862 4.74239 30.13 1487.09 1023.065 10.95 10.94 10.840 3.40099 4.74466 30.15 1487.14 1023.078 11.25 11.24 10.850 3.40356 4.74694 30.17 1487.20 1023.091 11.55 11.54 10.865 3.40811 4.75126 30.20 1487.30 1023.115 11.85 11.84 10.886 3.41020 4.75144 30.20 1487.38 1023.115 12.15 12.14 10.910 3.41253 4.75152 30.20 1487.47 1023.115 12.45 12.44 10.929 3.41602 4.75379 30.22 1487.57 1023.127 12.75 12.74 10.942 3.41799 4.75484 30.23 1487.63 1023.133 13.05 13.03 10.956 3.42041 4.75643 30.24 1487.70 1023.142 13.35 13.33 10.965 3.42224 4.75775 30.25 1487.75 1023.150 13.65 13.63 10.973 3.42516 4.76081 30.28 1487.81 1023.167 13.95 13.93 10.981 3.42752 4.76301 30.29 1487.86 1023.180 14.25 14.23 10.996 3.43002 4.76447 30.30 1487.93 1023.188 14.55 14.53 11.011 3.43275 4.76627 30.32 1488.01 1023.197 14.85 14.83 11.025 3.43719 4.77054 30.35 1488.10 1023.221 15.15 15.13 11.056 3.44057 4.77113 30.36 1488.23 1023.223 15.45 15.42 11.081 3.44503 4.77401 30.38 1488.35 1023.237 15.75 15.72 11.085 3.44658 4.77565 30.39 1488.38 1023.247 16.05 16.02 11.089 3.44776 4.77678 30.40 1488.41 1023.254 16.35 16.32 11.100 3.44840 4.77622 30.40 1488.45 1023.252 16.65 16.62 11.121 3.45129 4.77742 30.41 1488.54 1023.258 16.95 16.92 11.142 3.45373 4.77798 30.41 1488.63 1023.260 17.25 17.22 11.157 3.46288 4.78871 30.49 1488.78 1023.319 17.55 17.52 11.185 3.46651 4.78999 30.50 1488.90 1023.325 17.85 17.82 11.205 3.46741 4.78862 30.50 1488.96 1023.317 18.15 18.11 11.213 3.46941 4.79034 30.51 1489.01 1023.327 18.45 18.41 11.218 3.47238 4.79368 30.53 1489.07 1023.346 18.75 18.71 11.226 3.47391 4.79478 30.54 1489.11 1023.352 19.05 19.01 11.235 3.47516 4.79531 30.55 1489.15 1023.356 19.35 19.31 11.243 3.47630 4.79578 30.55 1489.19 1023.359 19.65 19.61 11.249 3.47670 4.79555 30.55 1489.21 1023.358 19.95 19.91 11.254 3.47865 4.79767 30.56 1489.25 1023.371 20.25 20.21 11.259 3.47978 4.79851 30.57 1489.28 1023.376 20.55 20.50 11.261 3.47961 4.79799 30.57 1489.29 1023.374 20.85 20.80 11.263 3.48069 4.79919 30.58 1489.31 1023.382 21.15 21.10 11.266 3.48208 4.80078 30.59 1489.34 1023.392 21.45 21.40 11.271 3.48529 4.80448 30.61 1489.40 1023.413 21.75 21.70 11.278 3.48553 4.80394 30.61 1489.42 1023.410 22.05 22.00 11.281 3.47685 4.79150 30.52 1489.33 1023.343 22.35 22.30 11.286 3.47343 4.78625 30.49 1489.31 1023.315 22.65 22.60 11.297 3.49022 4.80790 30.64 1489.54 1023.434 22.95 22.89 11.307 3.49175 4.80860 30.65 1489.59 1023.438 23.25 23.19 11.311 3.49166 4.80796 30.64 1489.60 1023.436 23.55 23.49 11.316 3.49263 4.80869 30.65 1489.63 1023.441 23.85 23.79 11.321 3.49492 4.81122 30.67 1489.67 1023.455 24.15 24.09 11.331 3.49695 4.81257 30.68 1489.73 1023.463 24.45 24.39 11.334 3.49786 4.81344 30.68 1489.75 1023.469 24.75 24.69 11.332 3.49889 4.81511 30.69 1489.76 1023.479 25.05 24.99 11.336 3.49986 4.81602 30.70 1489.79 1023.485 25.35 25.28 11.338 3.50009 4.81600 30.70 1489.80 1023.486 25.65 25.58 11.334 3.50006 4.81650 30.70 1489.80 1023.491 25.95 25.88 11.331 3.50132 4.81869 30.72 1489.81 1023.504 26.25 26.18 11.327 3.50091 4.81866 30.72 1489.80 1023.506 26.55 26.48 11.319 3.50126 4.82020 30.73 1489.79 1023.516 26.85 26.78 11.311 3.50146 4.82145 30.74 1489.77 1023.525 27.15 27.08 11.304 3.50114 4.82193 30.74 1489.76 1023.530 27.45 27.38 11.296 3.50020 4.82169 30.74 1489.73 1023.530 27.75 27.67 11.292 3.50048 4.82271 30.74 1489.73 1023.538 28.05 27.97 11.286 3.50010 4.82289 30.74 1489.72 1023.540 28.35 28.27 11.284 3.50158 4.82521 30.76 1489.73 1023.555 28.65 28.57 11.286 3.50188 4.82535 30.76 1489.75 1023.556 28.95 28.87 11.285 3.50215 4.82590 30.76 1489.75 1023.561 29.25 29.17 11.282 3.50158 4.82550 30.76 1489.74 1023.560 29.55 29.47 11.275 3.50164 4.82659 30.77 1489.73 1023.568 29.85 29.77 11.269 3.50095 4.82638 30.77 1489.71 1023.569 30.15 30.06 11.262 3.50127 4.82779 30.77 1489.70 1023.578 30.45 30.36 11.255 3.50076 4.82799 30.77 1489.68 1023.581 30.75 30.66 11.252 3.50078 4.82845 30.78 1489.68 1023.586 31.05 30.96 11.249 3.50074 4.82874 30.78 1489.68 1023.589 31.35 31.26 11.245 3.50114 4.82987 30.79 1489.67 1023.596 31.65 31.56 11.239 3.50080 4.83018 30.79 1489.66 1023.600 31.95 31.86 11.236 3.50068 4.83042 30.79 1489.66 1023.603 32.25 32.16 11.235 3.50081 4.83066 30.79 1489.66 1023.606 32.55 32.45 11.239 3.50193 4.83171 30.80 1489.69 1023.612 32.85 32.75 11.232 3.50231 4.83313 30.81 1489.68 1023.622 33.15 33.05 11.226 3.50255 4.83425 30.81 1489.67 1023.630 33.45 33.35 11.217 3.50145 4.83398 30.81 1489.64 1023.630 33.75 33.65 11.212 3.50018 4.83296 30.80 1489.62 1023.627 34.05 33.95 11.204 3.50030 4.83407 30.81 1489.61 1023.635 34.35 34.25 11.207 3.50072 4.83427 30.81 1489.62 1023.637 34.65 34.55 11.208 3.50226 4.83637 30.83 1489.65 1023.649 34.95 34.84 11.213 3.50279 4.83640 30.83 1489.67 1023.650 35.25 35.14 11.214 3.50233 4.83560 30.82 1489.67 1023.647 35.55 35.44 11.208 3.50225 4.83631 30.83 1489.66 1023.653 35.85 35.74 11.207 3.50271 4.83706 30.83 1489.67 1023.658 36.15 36.04 11.206 3.50279 4.83724 30.83 1489.67 1023.661 36.45 36.34 11.205 3.50255 4.83712 30.83 1489.67 1023.661 36.75 36.64 11.205 3.50330 4.83809 30.84 1489.69 1023.668 37.05 36.94 11.206 3.50278 4.83725 30.83 1489.69 1023.665 37.35 37.23 11.208 3.50282 4.83712 30.83 1489.70 1023.665 37.65 37.53 11.206 3.50266 4.83712 30.83 1489.70 1023.666 37.95 37.83 11.203 3.50268 4.83751 30.83 1489.69 1023.670 38.25 38.13 11.202 3.50286 4.83797 30.84 1489.70 1023.674 38.55 38.43 11.207 3.50413 4.83908 30.84 1489.73 1023.681 38.85 38.73 11.215 3.50489 4.83899 30.84 1489.76 1023.681 39.15 39.03 11.224 3.50701 4.84075 30.86 1489.82 1023.691 39.36 39.23 11.233 3.50902 4.84229 30.87 1489.87 1023.700