*2026/01/16 10:37:49.06 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 22:35:32.000 END TIME : UTC 2025/02/20 22:35:59.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 139 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.42 2 Depth metres 0.15 41.23 3 Temperature 'deg C (ITS90)' 7.986 11.054 4 Conductivity S/m 1.94054 3.56826 5 Conductance:Specific S/m 2.9415 4.99774 6 Salinity PSS-78 17.63 31.87 7 Speed:Sound m/s 1460.97 1489.65 8 Density kg/m^3 1013.669 1024.633 $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 : 65 LATITUDE : 50 7.84710 N ! (deg min) LONGITUDE : 127 16.93350 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_223532 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 139 139 MERGEHDR 1.3 2026/01/16 10:35:40 139 139 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 139 139 CALIB 12.1 2026/01/16 10:37:12 139 139 CLEAN 5.3 2026/01/16 10:37:49 139 139 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 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 7.986 1.94054 2.94150 17.63 1460.97 1013.669 0.45 0.45 8.317 2.15438 3.23319 19.57 1464.68 1015.153 0.75 0.75 8.621 2.81631 4.18826 26.04 1473.79 1020.165 1.05 1.05 8.756 3.12219 4.62468 29.06 1478.02 1022.513 1.35 1.35 8.818 3.14666 4.65237 29.26 1478.50 1022.662 1.65 1.65 8.760 3.16311 4.68465 29.48 1478.55 1022.842 1.95 1.95 8.728 3.17261 4.70326 29.60 1478.59 1022.946 2.25 2.25 8.784 3.18102 4.70792 29.64 1478.85 1022.970 2.55 2.55 8.869 3.18965 4.70885 29.66 1479.20 1022.973 2.85 2.85 8.921 3.20423 4.72303 29.77 1479.53 1023.049 3.15 3.14 8.963 3.21278 4.72977 29.82 1479.76 1023.085 3.45 3.44 8.993 3.22006 4.73630 29.87 1479.94 1023.121 3.75 3.74 9.026 3.22472 4.73856 29.89 1480.09 1023.133 4.05 4.04 9.086 3.23349 4.74320 29.93 1480.36 1023.157 4.35 4.34 9.168 3.24696 4.75146 30.00 1480.76 1023.199 4.65 4.64 9.275 3.25858 4.75359 30.03 1481.20 1023.207 4.95 4.94 9.423 3.28640 4.77352 30.19 1481.94 1023.309 5.25 5.24 9.639 3.32494 4.79935 30.39 1483.00 1023.440 5.55 5.54 9.910 3.37276 4.83064 30.65 1484.30 1023.596 5.85 5.83 10.026 3.43540 4.90408 31.18 1485.37 1023.993 6.15 6.13 10.199 3.46498 4.92199 31.33 1486.18 1024.081 6.45 6.43 10.396 3.45579 4.88167 31.07 1486.58 1023.846 6.75 6.73 10.522 3.45560 4.86398 30.96 1486.91 1023.741 7.05 7.03 10.625 3.48486 4.89104 31.16 1487.53 1023.883 7.35 7.33 10.706 3.50403 4.90682 31.28 1487.96 1023.965 7.65 7.63 10.800 3.51523 4.90952 31.31 1488.34 1023.973 7.95 7.92 10.863 3.52645 4.91652 31.37 1488.64 1024.008 8.25 8.22 10.895 3.52722 4.91327 31.35 1488.73 1023.989 8.55 8.52 10.908 3.52304 4.90566 31.29 1488.72 1023.947 8.85 8.82 10.898 3.51330 4.89339 31.21 1488.59 1023.882 9.15 9.12 10.893 3.51141 4.89148 31.19 1488.56 1023.873 9.45 9.42 10.904 3.52194 4.90469 31.29 1488.71 1023.946 9.75 9.72 10.913 3.52709 4.91062 31.33 1488.80 1023.979 10.05 10.02 10.939 3.53507 4.91821 31.39 1488.97 1024.020 10.35 10.31 10.973 3.54266 4.92400 31.43 1489.15 1024.050 10.65 10.61 10.994 3.54896 4.92991 31.48 1489.28 1024.082 10.95 10.91 11.010 3.55322 4.93364 31.50 1489.37 1024.103 11.25 11.21 11.029 3.55638 4.93539 31.52 1489.46 1024.112 11.55 11.51 11.046 3.55874 4.93633 31.53 1489.54 1024.117 11.85 11.81 11.048 3.56214 4.94085 31.56 1489.59 1024.143 12.15 12.11 11.054 3.56245 4.94040 31.56 1489.61 1024.141 12.45 12.40 11.054 3.56431 4.94297 31.57 1489.64 1024.157 12.75 12.70 11.051 3.56475 4.94401 31.58 1489.64 1024.164 13.05 13.00 11.049 3.56520 4.94494 31.59 1489.65 1024.171 13.35 13.30 11.045 3.56525 4.94558 31.59 1489.64 1024.176 13.65 13.60 11.041 3.56507 4.94586 31.59 1489.63 1024.179 13.95 13.90 11.039 3.56587 4.94722 31.60 1489.64 1024.188 14.25 14.20 11.035 3.56621 4.94829 31.61 1489.64 1024.195 14.55 14.49 11.028 3.56586 4.94879 31.61 1489.63 1024.200 14.85 14.79 11.024 3.56681 4.95059 31.62 1489.63 1024.211 15.15 15.09 11.021 3.56684 4.95107 31.63 1489.63 1024.216 15.45 15.39 11.015 3.56755 4.95291 31.64 1489.63 1024.228 15.75 15.69 11.001 3.56635 4.95314 31.64 1489.58 1024.231 16.05 15.99 10.987 3.56468 4.95279 31.64 1489.53 1024.232 16.35 16.29 10.981 3.56517 4.95425 31.64 1489.53 1024.242 16.65 16.58 10.984 3.56826 4.95812 31.67 1489.58 1024.264 16.95 16.88 10.976 3.56770 4.95851 31.67 1489.56 1024.268 17.25 17.18 10.963 3.56526 4.95689 31.66 1489.50 1024.261 17.55 17.48 10.955 3.56580 4.95874 31.67 1489.49 1024.274 17.85 17.78 10.950 3.56518 4.95852 31.67 1489.48 1024.274 18.15 18.08 10.948 3.56576 4.95967 31.68 1489.48 1024.282 18.45 18.37 10.945 3.56594 4.96030 31.68 1489.48 1024.287 18.75 18.67 10.939 3.56647 4.96190 31.69 1489.48 1024.297 19.05 18.97 10.930 3.56567 4.96201 31.69 1489.45 1024.300 19.35 19.27 10.919 3.56392 4.96104 31.68 1489.41 1024.297 19.65 19.57 10.893 3.56207 4.96205 31.69 1489.33 1024.306 19.95 19.87 10.842 3.55921 4.96511 31.70 1489.17 1024.328 20.25 20.17 10.783 3.55091 4.96179 31.67 1488.92 1024.316 20.55 20.46 10.703 3.54866 4.96972 31.72 1488.70 1024.368 20.85 20.76 10.623 3.53266 4.95846 31.63 1488.31 1024.313 21.15 21.06 10.568 3.51921 4.94722 31.54 1488.02 1024.256 21.45 21.36 10.528 3.50692 4.93550 31.46 1487.77 1024.196 21.75 21.66 10.483 3.50761 4.94266 31.50 1487.67 1024.240 22.05 21.96 10.482 3.51419 4.95212 31.57 1487.75 1024.294 22.35 22.26 10.526 3.52259 4.95775 31.61 1487.97 1024.323 22.65 22.55 10.592 3.54309 4.97738 31.76 1488.39 1024.427 22.95 22.85 10.682 3.55177 4.97693 31.77 1488.73 1024.419 23.25 23.15 10.747 3.55505 4.97248 31.74 1488.93 1024.391 23.55 23.45 10.767 3.55589 4.97094 31.74 1489.00 1024.382 23.85 23.75 10.766 3.55591 4.97110 31.74 1489.00 1024.384 24.15 24.05 10.761 3.55601 4.97195 31.74 1488.99 1024.390 24.45 24.35 10.756 3.55543 4.97182 31.74 1488.98 1024.391 24.75 24.64 10.749 3.55429 4.97112 31.73 1488.95 1024.389 25.05 24.94 10.744 3.55397 4.97139 31.73 1488.94 1024.392 25.35 25.24 10.734 3.55309 4.97160 31.74 1488.91 1024.396 25.65 25.54 10.725 3.55353 4.97344 31.75 1488.90 1024.408 25.95 25.84 10.710 3.55254 4.97415 31.75 1488.85 1024.414 26.25 26.14 10.700 3.55113 4.97364 31.75 1488.82 1024.413 26.55 26.44 10.692 3.55026 4.97345 31.74 1488.79 1024.414 26.85 26.73 10.683 3.55047 4.97508 31.75 1488.77 1024.425 27.15 27.03 10.681 3.54993 4.97456 31.75 1488.77 1024.424 27.45 27.33 10.683 3.55079 4.97552 31.76 1488.79 1024.430 27.75 27.63 10.686 3.55193 4.97671 31.76 1488.81 1024.438 28.05 27.93 10.692 3.55281 4.97708 31.77 1488.84 1024.441 28.35 28.23 10.696 3.55316 4.97699 31.77 1488.86 1024.441 28.65 28.52 10.699 3.55431 4.97812 31.78 1488.89 1024.448 28.95 28.82 10.704 3.55537 4.97891 31.78 1488.92 1024.453 29.25 29.12 10.702 3.55586 4.97988 31.79 1488.93 1024.460 29.55 29.42 10.701 3.55667 4.98112 31.80 1488.94 1024.468 29.85 29.72 10.700 3.55691 4.98170 31.80 1488.94 1024.473 30.15 30.02 10.695 3.55650 4.98182 31.80 1488.93 1024.475 30.45 30.32 10.691 3.55683 4.98287 31.81 1488.93 1024.483 30.75 30.61 10.689 3.55664 4.98286 31.81 1488.93 1024.484 31.05 30.91 10.688 3.55705 4.98352 31.81 1488.93 1024.489 31.35 31.21 10.686 3.55640 4.98288 31.81 1488.93 1024.487 31.65 31.51 10.682 3.55671 4.98395 31.81 1488.92 1024.494 31.95 31.81 10.679 3.55648 4.98400 31.81 1488.92 1024.496 32.25 32.11 10.676 3.55597 4.98377 31.81 1488.91 1024.496 32.55 32.40 10.669 3.55615 4.98487 31.82 1488.90 1024.504 32.85 32.70 10.661 3.55564 4.98534 31.82 1488.88 1024.509 33.15 33.00 10.649 3.55406 4.98474 31.81 1488.83 1024.508 33.45 33.30 10.640 3.55306 4.98472 31.81 1488.80 1024.510 33.75 33.60 10.625 3.55256 4.98607 31.82 1488.76 1024.519 34.05 33.90 10.613 3.55154 4.98630 31.82 1488.73 1024.523 34.35 34.20 10.604 3.55049 4.98604 31.82 1488.70 1024.523 34.65 34.49 10.594 3.54955 4.98611 31.82 1488.67 1024.526 34.95 34.79 10.581 3.54973 4.98822 31.83 1488.64 1024.540 35.25 35.09 10.568 3.54887 4.98888 31.83 1488.60 1024.546 35.55 35.39 10.558 3.54884 4.99024 31.84 1488.58 1024.555 35.85 35.69 10.548 3.54721 4.98934 31.83 1488.54 1024.552 36.15 35.99 10.533 3.54680 4.99089 31.84 1488.50 1024.563 36.45 36.28 10.522 3.54591 4.99115 31.84 1488.47 1024.567 36.75 36.58 10.509 3.54471 4.99136 31.84 1488.42 1024.570 37.05 36.88 10.494 3.54389 4.99226 31.85 1488.38 1024.577 37.35 37.18 10.486 3.54284 4.99185 31.84 1488.36 1024.577 37.65 37.48 10.481 3.54225 4.99169 31.84 1488.34 1024.578 37.95 37.78 10.476 3.54185 4.99192 31.84 1488.33 1024.581 38.25 38.08 10.468 3.54186 4.99308 31.85 1488.31 1024.589 38.55 38.37 10.462 3.54146 4.99333 31.85 1488.30 1024.592 38.85 38.67 10.454 3.54187 4.99506 31.86 1488.29 1024.603 39.15 38.97 10.448 3.54063 4.99410 31.85 1488.26 1024.600 39.45 39.27 10.440 3.54028 4.99469 31.86 1488.24 1024.605 39.75 39.57 10.433 3.53982 4.99515 31.86 1488.22 1024.609 40.05 39.87 10.428 3.53959 4.99552 31.86 1488.21 1024.613 40.35 40.16 10.420 3.53954 4.99652 31.87 1488.20 1024.620 40.65 40.46 10.409 3.53846 4.99650 31.87 1488.16 1024.622 40.95 40.76 10.398 3.53816 4.99774 31.87 1488.13 1024.631 41.25 41.06 10.396 3.53793 4.99768 31.87 1488.13 1024.632 41.42 41.23 10.395 3.53781 4.99761 31.87 1488.13 1024.633