*2026/01/16 10:37:48.76 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 19:38:40.000 END TIME : UTC 2025/02/20 19:39:05.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.72 2 Depth metres 0.15 37.55 3 Temperature 'deg C (ITS90)' 8.363 10.018 4 Conductivity S/m 3.11982 3.49384 5 Conductance:Specific S/m 4.67206 4.99777 6 Salinity PSS-78 29.34 31.82 7 Speed:Sound m/s 1476.89 1486.48 8 Density kg/m^3 1022.782 1024.648 $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 : 61 LATITUDE : 50 2.62740 N ! (deg min) LONGITUDE : 127 15.96630 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_193840 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 126 126 MERGEHDR 1.3 2026/01/16 10:35:40 126 126 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:38 126 126 CALIB 12.1 2026/01/16 10:37:12 126 126 CLEAN 5.3 2026/01/16 10:37:48 126 126 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 8.363 3.12030 4.67628 29.37 1476.89 1022.804 0.45 0.45 8.388 3.11982 4.67206 29.34 1476.96 1022.782 0.75 0.75 8.421 3.13090 4.68398 29.43 1477.20 1022.847 1.05 1.05 8.451 3.13812 4.69057 29.48 1477.38 1022.883 1.35 1.35 8.488 3.14413 4.69445 29.51 1477.56 1022.904 1.65 1.64 8.527 3.15126 4.69965 29.55 1477.76 1022.932 1.95 1.94 8.545 3.15822 4.70737 29.61 1477.91 1022.975 2.25 2.24 8.567 3.17218 4.72510 29.73 1478.15 1023.072 2.55 2.54 8.618 3.20211 4.76251 30.00 1478.67 1023.275 2.85 2.84 8.655 3.21759 4.78020 30.13 1478.98 1023.372 3.15 3.14 8.683 3.22426 4.78621 30.18 1479.14 1023.405 3.45 3.44 8.697 3.22780 4.78950 30.20 1479.23 1023.424 3.75 3.74 8.702 3.23248 4.79569 30.24 1479.31 1023.458 4.05 4.03 8.699 3.23631 4.80173 30.29 1479.36 1023.493 4.35 4.33 8.687 3.24060 4.80987 30.34 1479.38 1023.539 4.65 4.63 8.679 3.24254 4.81388 30.37 1479.39 1023.563 4.95 4.93 8.665 3.24663 4.82193 30.42 1479.41 1023.608 5.25 5.23 8.644 3.24819 4.82733 30.46 1479.38 1023.640 5.55 5.53 8.615 3.24925 4.83300 30.49 1479.32 1023.673 5.85 5.83 8.594 3.24364 4.82766 30.45 1479.19 1023.646 6.15 6.13 8.574 3.24366 4.83063 30.47 1479.14 1023.664 6.45 6.42 8.558 3.24268 4.83150 30.47 1479.09 1023.671 6.75 6.72 8.558 3.24404 4.83342 30.49 1479.12 1023.683 7.05 7.02 8.570 3.25014 4.84085 30.54 1479.23 1023.724 7.35 7.32 8.599 3.25918 4.85005 30.61 1479.43 1023.775 7.65 7.62 8.618 3.26298 4.85310 30.63 1479.53 1023.792 7.95 7.92 8.631 3.26323 4.85152 30.62 1479.58 1023.784 8.25 8.22 8.645 3.26331 4.84965 30.61 1479.62 1023.775 8.55 8.52 8.669 3.26582 4.84985 30.62 1479.72 1023.776 8.85 8.81 8.736 3.27325 4.85131 30.64 1480.00 1023.783 9.15 9.11 8.851 3.28650 4.85443 30.67 1480.48 1023.797 9.45 9.41 8.978 3.31669 4.88071 30.88 1481.21 1023.937 9.75 9.71 9.076 3.33954 4.90017 31.02 1481.76 1024.041 10.05 10.01 9.183 3.34489 4.89259 30.99 1482.12 1023.995 10.35 10.31 9.216 3.35358 4.90059 31.05 1482.32 1024.039 10.65 10.61 9.165 3.36194 4.92017 31.18 1482.29 1024.150 10.95 10.90 9.067 3.33927 4.90106 31.03 1481.75 1024.051 11.25 11.20 9.013 3.30527 4.85883 30.73 1481.19 1023.823 11.55 11.50 8.928 3.28640 4.84317 30.60 1480.73 1023.742 11.85 11.80 8.840 3.28300 4.85079 30.65 1480.45 1023.789 12.15 12.10 8.767 3.28253 4.86056 30.70 1480.25 1023.846 12.45 12.40 8.709 3.28780 4.87670 30.81 1480.17 1023.938 12.75 12.70 8.694 3.29320 4.88686 30.88 1480.21 1023.996 13.05 13.00 8.711 3.29470 4.88670 30.88 1480.27 1023.996 13.35 13.29 8.747 3.29982 4.88900 30.90 1480.44 1024.008 13.65 13.59 8.776 3.30729 4.89593 30.95 1480.62 1024.046 13.95 13.89 8.786 3.31194 4.90138 30.99 1480.71 1024.077 14.25 14.19 8.788 3.31210 4.90136 30.99 1480.72 1024.078 14.55 14.49 8.801 3.30875 4.89445 30.94 1480.72 1024.041 14.85 14.79 8.805 3.30910 4.89436 30.94 1480.74 1024.042 15.15 15.09 8.765 3.30936 4.90064 30.98 1480.64 1024.079 15.45 15.38 8.739 3.30529 4.89833 30.96 1480.52 1024.068 15.75 15.68 8.720 3.29999 4.89315 30.92 1480.41 1024.042 16.05 15.98 8.711 3.29616 4.88885 30.89 1480.34 1024.020 16.35 16.28 8.706 3.29755 4.89167 30.91 1480.35 1024.037 16.65 16.58 8.703 3.30122 4.89750 30.95 1480.39 1024.070 16.95 16.88 8.704 3.30466 4.90253 30.99 1480.44 1024.099 17.25 17.18 8.692 3.31034 4.91260 31.05 1480.49 1024.156 17.55 17.47 8.691 3.31409 4.91836 31.09 1480.54 1024.189 17.85 17.77 8.684 3.31329 4.91815 31.09 1480.52 1024.189 18.15 18.07 8.677 3.31345 4.91942 31.10 1480.50 1024.198 18.45 18.37 8.679 3.31349 4.91923 31.10 1480.51 1024.198 18.75 18.67 8.682 3.31583 4.92227 31.12 1480.56 1024.216 19.05 18.97 8.688 3.31738 4.92365 31.13 1480.60 1024.224 19.35 19.27 8.698 3.31828 4.92352 31.13 1480.64 1024.225 19.65 19.56 8.711 3.32079 4.92538 31.15 1480.71 1024.236 19.95 19.86 8.725 3.32178 4.92475 31.14 1480.77 1024.233 20.25 20.16 8.738 3.32275 4.92441 31.14 1480.82 1024.232 20.55 20.46 8.748 3.32425 4.92513 31.15 1480.87 1024.237 20.85 20.76 8.758 3.32598 4.92623 31.16 1480.92 1024.244 21.15 21.06 8.766 3.32786 4.92787 31.17 1480.97 1024.254 21.45 21.36 8.776 3.32759 4.92603 31.16 1481.00 1024.244 21.75 21.65 8.785 3.32813 4.92543 31.16 1481.04 1024.242 22.05 21.95 8.796 3.32896 4.92508 31.16 1481.08 1024.241 22.35 22.25 8.812 3.33082 4.92554 31.16 1481.15 1024.244 22.65 22.55 8.829 3.33600 4.93061 31.20 1481.27 1024.272 22.95 22.85 8.848 3.33867 4.93188 31.21 1481.36 1024.280 23.25 23.15 8.895 3.33884 4.92524 31.17 1481.49 1024.243 23.55 23.45 8.992 3.34435 4.91939 31.14 1481.82 1024.208 23.85 23.74 9.097 3.37231 4.94513 31.34 1482.46 1024.346 24.15 24.04 9.200 3.39199 4.95904 31.45 1482.98 1024.419 24.45 24.34 9.252 3.40759 4.97426 31.56 1483.32 1024.501 24.75 24.64 9.327 3.41160 4.96921 31.54 1483.57 1024.471 25.05 24.94 9.374 3.41181 4.96278 31.50 1483.70 1024.435 25.35 25.24 9.385 3.41174 4.96108 31.49 1483.73 1024.426 25.65 25.54 9.407 3.41042 4.95606 31.46 1483.77 1024.399 25.95 25.83 9.431 3.41422 4.95811 31.47 1483.89 1024.410 26.25 26.13 9.448 3.42115 4.96567 31.53 1484.03 1024.452 26.55 26.43 9.494 3.42415 4.96344 31.52 1484.19 1024.439 26.85 26.73 9.549 3.43069 4.96504 31.54 1484.41 1024.446 27.15 27.03 9.582 3.43668 4.96896 31.57 1484.58 1024.467 27.45 27.33 9.633 3.44400 4.97209 31.60 1484.81 1024.482 27.75 27.62 9.665 3.45065 4.97719 31.64 1484.98 1024.510 28.05 27.92 9.685 3.45268 4.97720 31.64 1485.06 1024.510 28.35 28.22 9.718 3.45409 4.97444 31.63 1485.17 1024.494 28.65 28.52 9.743 3.45349 4.97003 31.60 1485.23 1024.470 28.95 28.82 9.775 3.45599 4.96904 31.60 1485.35 1024.464 29.25 29.12 9.818 3.46121 4.97043 31.61 1485.53 1024.470 29.55 29.42 9.859 3.47365 4.98247 31.70 1485.79 1024.535 29.85 29.71 9.892 3.48124 4.98857 31.75 1485.97 1024.568 30.15 30.01 9.938 3.48419 4.98619 31.74 1486.13 1024.553 30.45 30.31 9.965 3.48652 4.98579 31.74 1486.23 1024.551 30.75 30.61 9.986 3.48823 4.98515 31.74 1486.32 1024.547 31.05 30.91 10.003 3.48969 4.98479 31.74 1486.38 1024.545 31.35 31.21 10.010 3.49072 4.98529 31.74 1486.42 1024.549 31.65 31.50 10.014 3.49206 4.98669 31.75 1486.45 1024.557 31.95 31.80 10.017 3.49210 4.98625 31.75 1486.46 1024.556 32.25 32.10 10.018 3.49163 4.98549 31.74 1486.46 1024.553 32.55 32.40 10.016 3.49219 4.98653 31.75 1486.47 1024.560 32.85 32.70 10.013 3.49188 4.98662 31.75 1486.46 1024.562 33.15 33.00 10.010 3.49205 4.98720 31.75 1486.46 1024.567 33.45 33.30 10.007 3.49249 4.98824 31.76 1486.46 1024.574 33.75 33.59 10.005 3.49274 4.98895 31.76 1486.47 1024.579 34.05 33.89 10.002 3.49308 4.98981 31.77 1486.47 1024.585 34.35 34.19 10.002 3.49279 4.98948 31.77 1486.47 1024.585 34.65 34.49 9.999 3.49291 4.99002 31.77 1486.47 1024.589 34.95 34.79 9.998 3.49304 4.99031 31.77 1486.47 1024.592 35.25 35.09 9.997 3.49251 4.98968 31.77 1486.47 1024.590 35.55 35.38 9.996 3.49343 4.99120 31.78 1486.48 1024.600 35.85 35.68 9.991 3.49176 4.98952 31.77 1486.45 1024.592 36.15 35.98 9.983 3.49284 4.99214 31.78 1486.45 1024.608 36.45 36.28 9.979 3.49221 4.99187 31.78 1486.44 1024.608 36.75 36.58 9.974 3.49166 4.99181 31.78 1486.42 1024.610 37.05 36.88 9.968 3.48941 4.98941 31.76 1486.38 1024.598 37.35 37.18 9.950 3.49107 4.99441 31.79 1486.36 1024.628 37.72 37.55 9.954 3.49384 4.99777 31.82 1486.41 1024.648