*2026/01/16 10:37:53.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 17:35:08.000 END TIME : UTC 2025/05/08 17:35:33.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 128 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.33 2 Depth metres 0.15 38.14 3 Temperature 'deg C (ITS90)' 8.865 10.526 4 Conductivity S/m 3.39231 3.43269 5 Conductance:Specific S/m 4.8099 5.04813 6 Salinity PSS-78 30.58 32.02 7 Speed:Sound m/s 1482.66 1486.47 8 Density kg/m^3 1023.418 1024.983 $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 : 135 LATITUDE : 48 54.76700 N ! (deg min) LONGITUDE : 125 28.08800 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_173508 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 128 128 MERGEHDR 1.3 2026/01/16 10:35:43 128 128 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:40 128 128 CALIB 12.1 2026/01/16 10:37:16 128 128 CLEAN 5.3 2026/01/16 10:37:53 128 128 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 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 10.417 3.43269 4.84605 30.82 1486.26 1023.622 0.45 0.45 10.512 3.41615 4.80990 30.58 1486.31 1023.418 0.75 0.75 10.516 3.42778 4.82574 30.69 1486.46 1023.506 1.05 1.05 10.526 3.42560 4.82130 30.66 1486.47 1023.482 1.35 1.34 10.485 3.42780 4.82994 30.71 1486.39 1023.534 1.65 1.64 10.319 3.42208 4.84449 30.80 1485.90 1023.627 1.95 1.94 10.197 3.41672 4.85371 30.85 1485.53 1023.688 2.25 2.24 10.131 3.41288 4.85730 30.86 1485.31 1023.714 2.55 2.54 10.100 3.41309 4.86193 30.89 1485.24 1023.742 2.85 2.84 10.068 3.41334 4.86668 30.92 1485.17 1023.772 3.15 3.14 10.021 3.41267 4.87233 30.96 1485.04 1023.807 3.45 3.44 9.986 3.41256 4.87707 30.98 1484.95 1023.837 3.75 3.73 9.960 3.41150 4.87919 31.00 1484.88 1023.852 4.05 4.03 9.939 3.41078 4.88105 31.01 1484.82 1023.864 4.35 4.33 9.920 3.41092 4.88384 31.02 1484.78 1023.882 4.65 4.63 9.904 3.41105 4.88630 31.04 1484.74 1023.898 4.95 4.93 9.892 3.40987 4.88627 31.04 1484.70 1023.900 5.25 5.23 9.885 3.40947 4.88680 31.04 1484.68 1023.904 5.55 5.53 9.878 3.40965 4.88801 31.05 1484.67 1023.913 5.85 5.83 9.871 3.40913 4.88818 31.05 1484.65 1023.915 6.15 6.12 9.860 3.40854 4.88885 31.05 1484.62 1023.921 6.45 6.42 9.851 3.40878 4.89056 31.06 1484.60 1023.932 6.75 6.72 9.836 3.40774 4.89114 31.06 1484.56 1023.938 7.05 7.02 9.809 3.40679 4.89349 31.08 1484.48 1023.953 7.35 7.32 9.786 3.40309 4.89143 31.06 1484.38 1023.945 7.65 7.62 9.768 3.40412 4.89555 31.09 1484.35 1023.970 7.95 7.92 9.751 3.40428 4.89816 31.10 1484.31 1023.987 8.25 8.21 9.732 3.40397 4.90035 31.11 1484.26 1024.001 8.55 8.51 9.711 3.40331 4.90233 31.13 1484.21 1024.014 8.85 8.81 9.688 3.40222 4.90406 31.13 1484.14 1024.026 9.15 9.11 9.661 3.40023 4.90500 31.14 1484.05 1024.034 9.45 9.41 9.640 3.39973 4.90717 31.15 1483.99 1024.049 9.75 9.71 9.628 3.39929 4.90828 31.16 1483.96 1024.057 10.05 10.01 9.614 3.39826 4.90879 31.16 1483.92 1024.062 10.35 10.31 9.599 3.39799 4.91052 31.17 1483.88 1024.073 10.65 10.60 9.588 3.39815 4.91231 31.18 1483.86 1024.085 10.95 10.90 9.580 3.39848 4.91396 31.19 1483.84 1024.096 11.25 11.20 9.571 3.39907 4.91604 31.20 1483.83 1024.109 11.55 11.50 9.561 3.39831 4.91644 31.20 1483.80 1024.113 11.85 11.80 9.553 3.39873 4.91820 31.22 1483.79 1024.125 12.15 12.10 9.543 3.39739 4.91756 31.21 1483.75 1024.123 12.45 12.40 9.530 3.39709 4.91910 31.22 1483.72 1024.133 12.75 12.69 9.510 3.39653 4.92107 31.23 1483.67 1024.146 13.05 12.99 9.485 3.39635 4.92444 31.25 1483.60 1024.168 13.35 13.29 9.449 3.39430 4.92659 31.26 1483.49 1024.182 13.65 13.59 9.418 3.39311 4.92927 31.27 1483.40 1024.200 13.95 13.89 9.389 3.39231 4.93229 31.29 1483.31 1024.219 14.25 14.19 9.356 3.39273 4.93762 31.32 1483.24 1024.252 14.55 14.49 9.322 3.39302 4.94297 31.36 1483.16 1024.284 14.85 14.78 9.303 3.39308 4.94574 31.37 1483.11 1024.302 15.15 15.08 9.296 3.39374 4.94777 31.39 1483.11 1024.314 15.45 15.38 9.290 3.39333 4.94803 31.39 1483.09 1024.317 15.75 15.68 9.287 3.39363 4.94890 31.39 1483.09 1024.324 16.05 15.98 9.285 3.39391 4.94963 31.40 1483.10 1024.329 16.35 16.28 9.284 3.39357 4.94919 31.40 1483.09 1024.328 16.65 16.58 9.282 3.39361 4.94949 31.40 1483.10 1024.331 16.95 16.87 9.281 3.39358 4.94971 31.40 1483.10 1024.333 17.25 17.17 9.280 3.39349 4.94962 31.40 1483.10 1024.334 17.55 17.47 9.279 3.39406 4.95060 31.40 1483.11 1024.341 17.85 17.77 9.277 3.39345 4.95008 31.40 1483.10 1024.339 18.15 18.07 9.271 3.39434 4.95223 31.41 1483.10 1024.353 18.45 18.37 9.266 3.39511 4.95401 31.43 1483.10 1024.364 18.75 18.67 9.262 3.39535 4.95499 31.43 1483.10 1024.371 19.05 18.96 9.256 3.39514 4.95553 31.43 1483.08 1024.375 19.35 19.26 9.247 3.39474 4.95619 31.44 1483.06 1024.381 19.65 19.56 9.240 3.39528 4.95808 31.45 1483.05 1024.393 19.95 19.86 9.236 3.39556 4.95905 31.46 1483.05 1024.400 20.25 20.16 9.231 3.39513 4.95919 31.46 1483.04 1024.402 20.55 20.46 9.228 3.39510 4.95958 31.46 1483.03 1024.406 20.85 20.76 9.225 3.39566 4.96082 31.47 1483.04 1024.414 21.15 21.05 9.223 3.39588 4.96146 31.47 1483.04 1024.419 21.45 21.35 9.220 3.39588 4.96180 31.47 1483.04 1024.422 21.75 21.65 9.218 3.39601 4.96231 31.48 1483.04 1024.426 22.05 21.95 9.215 3.39579 4.96247 31.48 1483.03 1024.428 22.35 22.25 9.212 3.39644 4.96375 31.49 1483.04 1024.437 22.65 22.55 9.211 3.39627 4.96368 31.48 1483.04 1024.438 22.95 22.84 9.210 3.39711 4.96513 31.49 1483.05 1024.447 23.25 23.14 9.206 3.39719 4.96580 31.50 1483.05 1024.452 23.55 23.44 9.202 3.39710 4.96616 31.50 1483.04 1024.456 23.85 23.74 9.200 3.39685 4.96621 31.50 1483.03 1024.457 24.15 24.04 9.197 3.39676 4.96647 31.50 1483.03 1024.460 24.45 24.34 9.192 3.39710 4.96765 31.51 1483.03 1024.468 24.75 24.64 9.189 3.39716 4.96819 31.51 1483.02 1024.472 25.05 24.93 9.185 3.39744 4.96922 31.52 1483.02 1024.479 25.35 25.23 9.179 3.39766 4.97038 31.53 1483.01 1024.487 25.65 25.53 9.177 3.39810 4.97137 31.53 1483.02 1024.494 25.95 25.83 9.173 3.39770 4.97125 31.53 1483.01 1024.495 26.25 26.13 9.170 3.39793 4.97210 31.54 1483.01 1024.501 26.55 26.43 9.165 3.39814 4.97309 31.54 1483.00 1024.508 26.85 26.73 9.160 3.39888 4.97489 31.55 1483.00 1024.519 27.15 27.02 9.156 3.39881 4.97540 31.56 1483.00 1024.524 27.45 27.32 9.155 3.39933 4.97638 31.56 1483.01 1024.530 27.75 27.62 9.154 3.39940 4.97661 31.57 1483.01 1024.533 28.05 27.92 9.150 3.39928 4.97693 31.57 1483.00 1024.536 28.35 28.22 9.146 3.39935 4.97771 31.57 1483.00 1024.542 28.65 28.52 9.144 3.39939 4.97799 31.57 1483.00 1024.545 28.95 28.82 9.140 3.39986 4.97936 31.58 1483.00 1024.554 29.25 29.11 9.133 3.39971 4.98015 31.59 1482.98 1024.560 29.55 29.41 9.126 3.39964 4.98102 31.59 1482.97 1024.566 29.85 29.71 9.122 3.40066 4.98307 31.61 1482.97 1024.579 30.15 30.01 9.112 3.40220 4.98683 31.63 1482.97 1024.601 30.45 30.31 9.102 3.40219 4.98826 31.64 1482.95 1024.611 30.75 30.61 9.099 3.40204 4.98853 31.64 1482.94 1024.614 31.05 30.90 9.093 3.40280 4.99045 31.65 1482.94 1024.626 31.35 31.20 9.091 3.40362 4.99200 31.66 1482.95 1024.636 31.65 31.50 9.090 3.40378 4.99230 31.66 1482.96 1024.639 31.95 31.80 9.087 3.40425 4.99348 31.67 1482.96 1024.646 32.25 32.10 9.082 3.40448 4.99460 31.68 1482.95 1024.654 32.55 32.40 9.069 3.40448 4.99648 31.69 1482.93 1024.666 32.85 32.70 9.050 3.40517 5.00029 31.71 1482.89 1024.689 33.15 32.99 9.033 3.40572 5.00359 31.74 1482.86 1024.710 33.45 33.29 9.017 3.40849 5.00998 31.78 1482.86 1024.747 33.75 33.59 8.996 3.41245 5.01894 31.84 1482.86 1024.798 34.05 33.89 8.970 3.41515 5.02674 31.89 1482.83 1024.843 34.35 34.19 8.954 3.41579 5.03004 31.91 1482.80 1024.864 34.65 34.49 8.955 3.41658 5.03106 31.92 1482.81 1024.870 34.95 34.78 8.958 3.41797 5.03270 31.93 1482.84 1024.880 35.25 35.08 8.950 3.41850 5.03467 31.94 1482.83 1024.893 35.55 35.38 8.930 3.41850 5.03755 31.96 1482.79 1024.911 35.85 35.68 8.913 3.41889 5.04066 31.98 1482.75 1024.930 36.15 35.98 8.897 3.41846 5.04235 31.99 1482.71 1024.941 36.45 36.28 8.891 3.41879 5.04386 32.00 1482.70 1024.951 36.75 36.57 8.885 3.41813 5.04373 32.00 1482.69 1024.952 37.05 36.87 8.880 3.41831 5.04476 32.00 1482.68 1024.959 37.35 37.17 8.876 3.41868 5.04584 32.01 1482.68 1024.966 37.65 37.47 8.869 3.41850 5.04672 32.01 1482.66 1024.973 37.95 37.77 8.866 3.41857 5.04726 32.02 1482.66 1024.977 38.33 38.14 8.865 3.41907 5.04813 32.02 1482.67 1024.983