*2026/01/16 10:37:46.92 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/18 19:31:14.000 END TIME : UTC 2025/02/18 19:31:40.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.24 2 Depth metres 0.15 40.05 3 Temperature 'deg C (ITS90)' 8.176 8.794 4 Conductivity S/m 3.22609 3.26902 5 Conductance:Specific S/m 4.78037 4.9059 6 Salinity PSS-78 30.15 30.92 7 Speed:Sound m/s 1478.7 1479.88 8 Density kg/m^3 1023.359 1024.231 $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 : 41 LATITUDE : 49 51.47920 N ! (deg min) LONGITUDE : 126 58.52970 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250218_193114 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 135 135 MERGEHDR 1.3 2026/01/16 10:35:39 135 135 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 135 135 CALIB 12.1 2026/01/16 10:37:10 135 135 CLEAN 5.3 2026/01/16 10:37:46 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 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 8.733 3.22609 4.78180 30.15 1479.25 1023.366 0.45 0.45 8.757 3.22739 4.78037 30.15 1479.34 1023.359 0.75 0.75 8.778 3.23214 4.78434 30.18 1479.46 1023.381 1.05 1.05 8.786 3.24616 4.80401 30.32 1479.67 1023.489 1.35 1.34 8.794 3.25047 4.80927 30.35 1479.75 1023.519 1.65 1.64 8.789 3.25189 4.81199 30.37 1479.76 1023.535 1.95 1.94 8.782 3.25261 4.81418 30.39 1479.75 1023.549 2.25 2.24 8.762 3.25110 4.81476 30.39 1479.68 1023.554 2.55 2.54 8.747 3.24900 4.81371 30.38 1479.62 1023.550 2.85 2.84 8.731 3.24828 4.81495 30.38 1479.57 1023.559 3.15 3.14 8.700 3.24901 4.82055 30.42 1479.50 1023.592 3.45 3.44 8.679 3.24864 4.82297 30.43 1479.45 1023.607 3.75 3.73 8.667 3.24899 4.82519 30.45 1479.42 1023.621 4.05 4.03 8.659 3.24844 4.82557 30.45 1479.40 1023.625 4.35 4.33 8.652 3.24930 4.82777 30.46 1479.40 1023.638 4.65 4.63 8.651 3.24885 4.82732 30.46 1479.39 1023.637 4.95 4.93 8.648 3.24858 4.82723 30.46 1479.39 1023.638 5.25 5.23 8.645 3.24851 4.82762 30.46 1479.38 1023.641 5.55 5.53 8.643 3.24898 4.82864 30.47 1479.39 1023.648 5.85 5.83 8.644 3.25151 4.83227 30.49 1479.43 1023.670 6.15 6.12 8.641 3.25260 4.83421 30.50 1479.44 1023.681 6.45 6.42 8.643 3.25390 4.83589 30.52 1479.47 1023.692 6.75 6.72 8.643 3.25505 4.83769 30.53 1479.48 1023.703 7.05 7.02 8.642 3.25585 4.83902 30.54 1479.50 1023.712 7.35 7.32 8.641 3.25610 4.83951 30.54 1479.50 1023.716 7.65 7.62 8.644 3.25622 4.83924 30.54 1479.52 1023.715 7.95 7.92 8.647 3.25647 4.83922 30.54 1479.53 1023.716 8.25 8.22 8.652 3.25694 4.83916 30.54 1479.56 1023.717 8.55 8.51 8.660 3.25766 4.83909 30.54 1479.59 1023.718 8.85 8.81 8.677 3.25922 4.83900 30.54 1479.66 1023.718 9.15 9.11 8.693 3.26308 4.84240 30.57 1479.76 1023.737 9.45 9.41 8.701 3.26654 4.84637 30.60 1479.83 1023.760 9.75 9.71 8.708 3.26796 4.84740 30.60 1479.87 1023.766 10.05 10.01 8.706 3.26902 4.84933 30.62 1479.88 1023.778 10.35 10.31 8.690 3.26848 4.85085 30.63 1479.84 1023.789 10.65 10.61 8.686 3.26472 4.84580 30.59 1479.79 1023.762 10.95 10.90 8.678 3.26334 4.84494 30.58 1479.75 1023.759 11.25 11.20 8.665 3.26349 4.84705 30.59 1479.72 1023.773 11.55 11.50 8.653 3.26288 4.84783 30.60 1479.69 1023.779 11.85 11.80 8.643 3.26342 4.85004 30.61 1479.67 1023.792 12.15 12.10 8.633 3.26422 4.85265 30.63 1479.66 1023.808 12.45 12.40 8.626 3.26366 4.85283 30.63 1479.64 1023.811 12.75 12.70 8.622 3.26409 4.85416 30.64 1479.64 1023.819 13.05 12.99 8.616 3.26350 4.85405 30.64 1479.62 1023.820 13.35 13.29 8.608 3.26443 4.85661 30.65 1479.61 1023.836 13.65 13.59 8.594 3.26324 4.85687 30.65 1479.57 1023.839 13.95 13.89 8.584 3.26216 4.85679 30.65 1479.53 1023.840 14.25 14.19 8.575 3.26261 4.85867 30.66 1479.52 1023.852 14.55 14.49 8.569 3.26188 4.85840 30.66 1479.50 1023.852 14.85 14.79 8.558 3.26119 4.85899 30.66 1479.46 1023.857 15.15 15.09 8.549 3.26069 4.85962 30.66 1479.44 1023.862 15.45 15.38 8.537 3.26013 4.86043 30.67 1479.40 1023.868 15.75 15.68 8.529 3.26006 4.86159 30.67 1479.38 1023.876 16.05 15.98 8.524 3.25969 4.86176 30.68 1479.37 1023.878 16.35 16.28 8.514 3.25925 4.86248 30.68 1479.34 1023.884 16.65 16.58 8.506 3.26011 4.86501 30.70 1479.34 1023.899 16.95 16.88 8.501 3.26025 4.86589 30.70 1479.33 1023.905 17.25 17.18 8.494 3.26005 4.86663 30.70 1479.31 1023.911 17.55 17.47 8.487 3.26023 4.86797 30.71 1479.30 1023.920 17.85 17.77 8.482 3.25993 4.86824 30.71 1479.29 1023.923 18.15 18.07 8.477 3.25984 4.86883 30.72 1479.28 1023.927 18.45 18.37 8.464 3.25951 4.87015 30.72 1479.24 1023.936 18.75 18.67 8.444 3.25898 4.87233 30.74 1479.19 1023.950 19.05 18.97 8.435 3.25767 4.87171 30.73 1479.15 1023.948 19.35 19.27 8.422 3.25679 4.87220 30.73 1479.11 1023.953 19.65 19.57 8.404 3.25624 4.87404 30.74 1479.06 1023.965 19.95 19.86 8.391 3.25554 4.87482 30.75 1479.02 1023.970 20.25 20.16 8.384 3.25554 4.87591 30.75 1479.00 1023.978 20.55 20.46 8.379 3.25553 4.87661 30.76 1479.00 1023.983 20.85 20.76 8.373 3.25483 4.87640 30.75 1478.98 1023.983 21.15 21.06 8.368 3.25561 4.87835 30.77 1478.98 1023.996 21.45 21.36 8.362 3.25529 4.87871 30.77 1478.96 1023.999 21.75 21.66 8.350 3.25532 4.88058 30.78 1478.93 1024.011 22.05 21.95 8.341 3.25509 4.88148 30.78 1478.91 1024.017 22.35 22.25 8.338 3.25504 4.88191 30.79 1478.91 1024.021 22.65 22.55 8.337 3.25460 4.88131 30.78 1478.90 1024.019 22.95 22.85 8.326 3.25385 4.88185 30.78 1478.87 1024.024 23.25 23.15 8.318 3.25413 4.88339 30.79 1478.86 1024.033 23.55 23.45 8.314 3.25376 4.88346 30.79 1478.84 1024.035 23.85 23.75 8.304 3.25384 4.88501 30.80 1478.82 1024.045 24.15 24.04 8.301 3.25384 4.88556 30.81 1478.82 1024.050 24.45 24.34 8.300 3.25385 4.88559 30.81 1478.82 1024.051 24.75 24.64 8.302 3.25349 4.88480 30.80 1478.83 1024.048 25.05 24.94 8.304 3.25387 4.88508 30.80 1478.84 1024.051 25.35 25.24 8.303 3.25361 4.88486 30.80 1478.84 1024.051 25.65 25.54 8.303 3.25404 4.88550 30.80 1478.85 1024.056 25.95 25.84 8.301 3.25388 4.88561 30.80 1478.85 1024.058 26.25 26.13 8.302 3.25409 4.88580 30.81 1478.86 1024.060 26.55 26.43 8.299 3.25400 4.88603 30.81 1478.85 1024.062 26.85 26.73 8.297 3.25401 4.88638 30.81 1478.85 1024.066 27.15 27.03 8.296 3.25395 4.88646 30.81 1478.85 1024.067 27.45 27.33 8.298 3.25369 4.88572 30.80 1478.86 1024.065 27.75 27.63 8.297 3.25413 4.88658 30.81 1478.87 1024.071 28.05 27.93 8.294 3.25371 4.88638 30.81 1478.86 1024.071 28.35 28.23 8.294 3.25363 4.88628 30.81 1478.86 1024.072 28.65 28.52 8.291 3.25347 4.88638 30.81 1478.86 1024.073 28.95 28.82 8.290 3.25358 4.88672 30.81 1478.86 1024.077 29.25 29.12 8.290 3.25385 4.88710 30.81 1478.87 1024.080 29.55 29.42 8.290 3.25333 4.88637 30.81 1478.87 1024.077 29.85 29.72 8.287 3.25359 4.88719 30.81 1478.87 1024.083 30.15 30.02 8.283 3.25356 4.88768 30.81 1478.86 1024.087 30.45 30.32 8.279 3.25351 4.88827 30.82 1478.85 1024.092 30.75 30.61 8.276 3.25382 4.88919 30.82 1478.86 1024.098 31.05 30.91 8.272 3.25332 4.88890 30.82 1478.84 1024.098 31.35 31.21 8.267 3.25295 4.88911 30.82 1478.83 1024.100 31.65 31.51 8.261 3.25324 4.89051 30.83 1478.82 1024.110 31.95 31.81 8.252 3.25311 4.89153 30.84 1478.80 1024.117 32.25 32.11 8.244 3.25293 4.89252 30.84 1478.78 1024.124 32.55 32.41 8.233 3.25242 4.89331 30.85 1478.75 1024.130 32.85 32.70 8.227 3.25248 4.89438 30.85 1478.74 1024.137 33.15 33.00 8.222 3.25222 4.89469 30.85 1478.73 1024.140 33.45 33.30 8.219 3.25267 4.89582 30.86 1478.73 1024.147 33.75 33.60 8.216 3.25272 4.89636 30.86 1478.73 1024.152 34.05 33.90 8.213 3.25288 4.89702 30.87 1478.72 1024.157 34.35 34.20 8.208 3.25281 4.89763 30.87 1478.72 1024.161 34.65 34.50 8.207 3.25279 4.89772 30.87 1478.72 1024.163 34.95 34.79 8.206 3.25350 4.89892 30.88 1478.73 1024.171 35.25 35.09 8.203 3.25393 4.90011 30.89 1478.73 1024.179 35.55 35.39 8.197 3.25383 4.90078 30.89 1478.72 1024.184 35.85 35.69 8.192 3.25375 4.90143 30.89 1478.71 1024.189 36.15 35.99 8.191 3.25379 4.90164 30.90 1478.71 1024.191 36.45 36.29 8.192 3.25380 4.90154 30.90 1478.72 1024.192 36.75 36.59 8.190 3.25307 4.90068 30.89 1478.71 1024.189 37.05 36.88 8.186 3.25304 4.90128 30.89 1478.70 1024.193 37.35 37.18 8.182 3.25318 4.90202 30.90 1478.70 1024.199 37.65 37.48 8.181 3.25324 4.90230 30.90 1478.70 1024.202 37.95 37.78 8.180 3.25332 4.90248 30.90 1478.70 1024.204 38.25 38.08 8.181 3.25269 4.90151 30.89 1478.70 1024.200 38.55 38.38 8.177 3.25295 4.90237 30.90 1478.70 1024.206 38.85 38.68 8.176 3.25347 4.90334 30.90 1478.71 1024.213 39.15 38.97 8.176 3.25312 4.90280 30.90 1478.71 1024.211 39.45 39.27 8.177 3.25524 4.90590 30.92 1478.74 1024.229 39.75 39.57 8.181 3.25480 4.90465 30.91 1478.75 1024.223 40.05 39.87 8.182 3.25520 4.90503 30.92 1478.77 1024.227 40.24 40.05 8.183 3.25573 4.90566 30.92 1478.78 1024.231