*2026/01/16 10:37:50.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 21:42:08.000 END TIME : UTC 2025/04/08 21:42:30.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 113 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.8 2 Depth metres 0.15 33.72 3 Temperature 'deg C (ITS90)' 8.677 9.826 4 Conductivity S/m 2.17515 3.13743 5 Conductance:Specific S/m 3.12426 4.6438 6 Salinity PSS-78 18.97 29.18 7 Speed:Sound m/s 1469.69 1480.52 8 Density kg/m^3 1014.494 1022.756 $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 : 90 LATITUDE : 49 52.10100 N ! (deg min) LONGITUDE : 126 52.62670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_214208 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 113 113 MERGEHDR 1.3 2026/01/16 10:35:41 113 113 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 113 113 CALIB 12.1 2026/01/16 10:37:13 113 113 CLEAN 5.3 2026/01/16 10:37:50 113 113 $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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 9.811 2.17515 3.12426 18.97 1469.69 1014.494 0.45 0.45 9.808 2.27905 3.27374 19.96 1470.89 1015.269 0.75 0.75 9.789 2.45432 3.52741 21.66 1472.88 1016.595 1.05 1.05 9.773 2.52073 3.62452 22.32 1473.62 1017.107 1.35 1.35 9.737 2.64428 3.80610 23.54 1474.97 1018.069 1.65 1.65 9.748 2.69938 3.88419 24.08 1475.67 1018.483 1.95 1.95 9.769 2.72639 3.92070 24.33 1476.05 1018.677 2.25 2.25 9.773 2.76156 3.97081 24.67 1476.49 1018.944 2.55 2.55 9.783 2.80202 4.02788 25.06 1477.00 1019.249 2.85 2.85 9.791 2.90665 4.17731 26.09 1478.28 1020.049 3.15 3.15 9.803 2.95843 4.25023 26.59 1478.95 1020.441 3.45 3.45 9.822 2.97756 4.27537 26.77 1479.23 1020.576 3.75 3.75 9.826 2.99792 4.30415 26.97 1479.49 1020.732 4.05 4.05 9.821 3.01329 4.32688 27.12 1479.67 1020.856 4.35 4.35 9.824 3.02557 4.34408 27.24 1479.83 1020.950 4.65 4.65 9.826 3.03335 4.35501 27.32 1479.94 1021.010 4.95 4.95 9.817 3.04742 4.37632 27.46 1480.09 1021.127 5.25 5.25 9.811 3.05973 4.39478 27.59 1480.22 1021.228 5.55 5.55 9.812 3.06623 4.40401 27.66 1480.31 1021.279 5.85 5.85 9.811 3.06943 4.40865 27.69 1480.35 1021.306 6.15 6.15 9.806 3.07125 4.41195 27.71 1480.36 1021.325 6.45 6.45 9.802 3.07352 4.41567 27.74 1480.39 1021.347 6.75 6.75 9.807 3.07815 4.42175 27.78 1480.46 1021.381 7.05 7.05 9.813 3.08188 4.42636 27.81 1480.52 1021.406 7.35 7.35 9.805 3.08310 4.42904 27.83 1480.52 1021.423 7.65 7.65 9.790 3.08399 4.43236 27.85 1480.50 1021.443 7.95 7.95 9.781 3.08454 4.43424 27.86 1480.48 1021.455 8.25 8.25 9.777 3.08432 4.43445 27.86 1480.47 1021.458 8.55 8.54 9.766 3.08481 4.43649 27.88 1480.46 1021.471 8.85 8.84 9.755 3.08525 4.43852 27.89 1480.44 1021.484 9.15 9.14 9.750 3.08493 4.43878 27.89 1480.42 1021.487 9.45 9.44 9.747 3.08442 4.43837 27.89 1480.41 1021.486 9.75 9.74 9.746 3.08484 4.43908 27.89 1480.42 1021.491 10.05 10.04 9.744 3.08557 4.44040 27.90 1480.43 1021.500 10.35 10.34 9.737 3.08606 4.44205 27.91 1480.42 1021.510 10.65 10.64 9.714 3.08713 4.44655 27.94 1480.37 1021.538 10.95 10.94 9.688 3.08681 4.44933 27.95 1480.30 1021.556 11.25 11.24 9.656 3.08572 4.45188 27.97 1480.21 1021.573 11.55 11.54 9.631 3.08588 4.45541 27.99 1480.14 1021.595 11.85 11.84 9.615 3.08323 4.45365 27.98 1480.07 1021.587 12.15 12.14 9.598 3.07880 4.44942 27.94 1479.98 1021.567 12.45 12.44 9.556 3.07699 4.45217 27.96 1479.84 1021.586 12.75 12.74 9.501 3.07412 4.45514 27.97 1479.66 1021.606 13.05 13.03 9.455 3.07418 4.46116 28.01 1479.54 1021.643 13.35 13.33 9.400 3.06975 4.46190 28.01 1479.34 1021.651 13.65 13.63 9.331 3.06646 4.46601 28.03 1479.11 1021.679 13.95 13.93 9.247 3.06225 4.47085 28.05 1478.83 1021.711 14.25 14.23 9.196 3.06023 4.47459 28.07 1478.67 1021.735 14.55 14.53 9.170 3.05828 4.47508 28.07 1478.58 1021.740 14.85 14.83 9.136 3.05414 4.47349 28.06 1478.44 1021.735 15.15 15.13 9.066 3.05376 4.48216 28.11 1478.24 1021.787 15.45 15.43 9.008 3.05450 4.49089 28.16 1478.09 1021.838 15.75 15.73 8.979 3.05488 4.49531 28.19 1478.02 1021.865 16.05 16.03 8.959 3.05487 4.49788 28.20 1477.97 1021.881 16.35 16.33 8.944 3.05622 4.50189 28.23 1477.95 1021.905 16.65 16.63 8.934 3.05556 4.50219 28.23 1477.92 1021.908 16.95 16.93 8.913 3.05512 4.50435 28.24 1477.86 1021.922 17.25 17.22 8.871 3.05669 4.51228 28.29 1477.77 1021.968 17.55 17.52 8.838 3.05736 4.51770 28.32 1477.69 1022.000 17.85 17.82 8.822 3.05863 4.52165 28.35 1477.67 1022.023 18.15 18.12 8.809 3.05984 4.52517 28.37 1477.65 1022.044 18.45 18.42 8.792 3.06092 4.52907 28.40 1477.62 1022.068 18.75 18.72 8.775 3.06093 4.53133 28.41 1477.58 1022.082 19.05 19.02 8.763 3.06092 4.53291 28.42 1477.55 1022.092 19.35 19.32 8.753 3.06104 4.53454 28.43 1477.53 1022.103 19.65 19.62 8.744 3.06098 4.53563 28.43 1477.51 1022.110 19.95 19.92 8.739 3.06353 4.54002 28.46 1477.53 1022.135 20.25 20.22 8.734 3.06477 4.54256 28.48 1477.54 1022.151 20.55 20.52 8.731 3.06702 4.54634 28.51 1477.56 1022.173 20.85 20.82 8.727 3.06699 4.54677 28.51 1477.55 1022.176 21.15 21.11 8.722 3.06806 4.54908 28.52 1477.56 1022.190 21.45 21.41 8.715 3.06793 4.54980 28.53 1477.54 1022.196 21.75 21.71 8.708 3.06797 4.55077 28.53 1477.53 1022.203 22.05 22.01 8.703 3.06794 4.55150 28.54 1477.52 1022.208 22.35 22.31 8.695 3.06760 4.55197 28.54 1477.50 1022.212 22.65 22.61 8.691 3.06845 4.55378 28.55 1477.50 1022.224 22.95 22.91 8.687 3.06858 4.55448 28.56 1477.50 1022.229 23.25 23.21 8.681 3.06886 4.55581 28.57 1477.49 1022.238 23.55 23.51 8.678 3.06875 4.55601 28.57 1477.48 1022.240 23.85 23.81 8.677 3.06919 4.55679 28.57 1477.49 1022.246 24.15 24.11 8.678 3.07100 4.55929 28.59 1477.52 1022.260 24.45 24.40 8.680 3.07161 4.56000 28.59 1477.54 1022.265 24.75 24.70 8.684 3.07305 4.56157 28.60 1477.57 1022.275 25.05 25.00 8.690 3.07454 4.56292 28.61 1477.61 1022.283 25.35 25.30 8.693 3.08002 4.57073 28.67 1477.69 1022.327 25.65 25.60 8.701 3.08301 4.57406 28.69 1477.76 1022.346 25.95 25.90 8.709 3.08576 4.57705 28.71 1477.82 1022.363 26.25 26.20 8.715 3.08947 4.58171 28.75 1477.89 1022.389 26.55 26.50 8.723 3.09600 4.59035 28.81 1478.00 1022.437 26.85 26.80 8.729 3.10346 4.60053 28.88 1478.11 1022.493 27.15 27.10 8.735 3.10648 4.60429 28.91 1478.17 1022.515 27.45 27.40 8.741 3.10693 4.60407 28.91 1478.20 1022.515 27.75 27.69 8.748 3.10776 4.60434 28.91 1478.24 1022.517 28.05 27.99 8.748 3.10842 4.60529 28.92 1478.25 1022.524 28.35 28.29 8.748 3.10786 4.60446 28.91 1478.25 1022.520 28.65 28.59 8.748 3.10904 4.60622 28.92 1478.27 1022.531 28.95 28.89 8.749 3.10872 4.60558 28.92 1478.27 1022.529 29.25 29.19 8.750 3.11153 4.60960 28.94 1478.31 1022.552 29.55 29.49 8.751 3.11235 4.61071 28.95 1478.33 1022.559 29.85 29.79 8.753 3.11290 4.61131 28.96 1478.35 1022.564 30.15 30.09 8.754 3.11292 4.61121 28.96 1478.35 1022.564 30.45 30.39 8.754 3.11364 4.61218 28.96 1478.37 1022.571 30.75 30.69 8.754 3.11591 4.61562 28.99 1478.40 1022.591 31.05 30.98 8.755 3.12780 4.63311 29.11 1478.56 1022.687 31.35 31.28 8.763 3.12953 4.63450 29.12 1478.61 1022.696 31.65 31.58 8.769 3.13164 4.63688 29.14 1478.66 1022.710 31.95 31.88 8.772 3.13124 4.63592 29.13 1478.66 1022.706 32.25 32.18 8.776 3.13124 4.63528 29.13 1478.68 1022.703 32.55 32.48 8.776 3.13311 4.63813 29.14 1478.71 1022.720 32.85 32.78 8.776 3.13414 4.63954 29.15 1478.73 1022.729 33.15 33.08 8.779 3.13573 4.64159 29.17 1478.76 1022.741 33.45 33.38 8.788 3.13613 4.64088 29.17 1478.79 1022.738 33.80 33.72 8.781 3.13743 4.64380 29.18 1478.80 1022.756