*2026/01/16 10:37:50.53 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 23:05:05.000 END TIME : UTC 2025/04/08 23:05:25.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 101 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30 2 Depth metres 0.15 29.94 3 Temperature 'deg C (ITS90)' 8.595 9.7 4 Conductivity S/m 1.63352 3.10928 5 Conductance:Specific S/m 2.36111 4.62367 6 Salinity PSS-78 13.97 29.03 7 Speed:Sound m/s 1462.79 1479.43 8 Density kg/m^3 1010.634 1022.637 $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 : 92 LATITUDE : 49 53.28250 N ! (deg min) LONGITUDE : 126 47.87140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_230505 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 101 101 MERGEHDR 1.3 2026/01/16 10:35:41 101 101 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 101 101 CALIB 12.1 2026/01/16 10:37:14 101 101 CLEAN 5.3 2026/01/16 10:37:50 101 101 $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 10:37:14 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 9.592 1.63352 2.36111 13.97 1462.79 1010.634 0.45 0.45 9.590 1.76739 2.55478 15.22 1464.30 1011.608 0.75 0.76 9.582 2.18842 3.16406 19.22 1469.13 1014.720 1.05 1.06 9.553 2.52688 3.65654 22.51 1473.03 1017.291 1.35 1.36 9.672 2.80564 4.04602 25.17 1476.71 1019.348 1.65 1.66 9.658 2.90294 4.18804 26.15 1477.84 1020.110 1.95 1.96 9.645 2.95756 4.26837 26.70 1478.47 1020.544 2.25 2.26 9.647 2.97188 4.28885 26.84 1478.65 1020.655 2.55 2.56 9.656 2.98429 4.30563 26.96 1478.84 1020.746 2.85 2.86 9.672 2.98872 4.31002 26.99 1478.94 1020.770 3.15 3.15 9.682 2.99413 4.31650 27.04 1479.04 1020.805 3.45 3.45 9.687 2.99734 4.32051 27.06 1479.10 1020.828 3.75 3.75 9.690 3.00194 4.32684 27.11 1479.16 1020.863 4.05 4.05 9.691 3.00647 4.33318 27.15 1479.23 1020.899 4.35 4.35 9.692 3.00897 4.33670 27.18 1479.26 1020.919 4.65 4.65 9.694 3.00970 4.33750 27.18 1479.28 1020.924 4.95 4.95 9.694 3.01036 4.33839 27.19 1479.30 1020.930 5.25 5.25 9.695 3.01132 4.33972 27.20 1479.31 1020.939 5.55 5.55 9.696 3.01151 4.33985 27.20 1479.33 1020.941 5.85 5.85 9.698 3.01230 4.34069 27.20 1479.35 1020.946 6.15 6.15 9.700 3.01619 4.34604 27.24 1479.40 1020.976 6.45 6.45 9.694 3.01766 4.34897 27.26 1479.41 1020.994 6.75 6.75 9.686 3.01936 4.35240 27.28 1479.41 1021.014 7.05 7.05 9.678 3.02106 4.35582 27.31 1479.42 1021.034 7.35 7.35 9.664 3.02516 4.36348 27.36 1479.43 1021.078 7.65 7.65 9.638 3.02923 4.37273 27.42 1479.41 1021.131 7.95 7.95 9.577 3.03098 4.38289 27.48 1479.27 1021.191 8.25 8.25 9.471 3.04276 4.41347 27.68 1479.12 1021.364 8.55 8.55 9.444 3.05370 4.43282 27.81 1479.19 1021.471 8.85 8.85 9.403 3.05917 4.44611 27.90 1479.14 1021.547 9.15 9.14 9.331 3.05991 4.45648 27.96 1478.96 1021.608 9.45 9.44 9.272 3.06034 4.46473 28.01 1478.81 1021.657 9.75 9.74 9.227 3.06030 4.47063 28.05 1478.68 1021.693 10.05 10.04 9.185 3.05950 4.47498 28.07 1478.56 1021.720 10.35 10.34 9.151 3.05864 4.47808 28.09 1478.46 1021.740 10.65 10.64 9.118 3.05688 4.47982 28.10 1478.35 1021.752 10.95 10.94 9.095 3.05590 4.48141 28.11 1478.28 1021.763 11.25 11.24 9.072 3.05439 4.48226 28.11 1478.20 1021.770 11.55 11.54 9.052 3.05465 4.48532 28.13 1478.16 1021.789 11.85 11.84 9.041 3.05430 4.48625 28.13 1478.13 1021.796 12.15 12.14 9.029 3.05384 4.48708 28.14 1478.09 1021.802 12.45 12.44 9.018 3.05380 4.48853 28.15 1478.07 1021.812 12.75 12.74 9.010 3.05364 4.48936 28.15 1478.05 1021.818 13.05 13.04 9.003 3.05402 4.49080 28.16 1478.04 1021.828 13.35 13.33 8.997 3.05318 4.49041 28.16 1478.01 1021.827 13.65 13.63 8.991 3.05277 4.49060 28.16 1478.00 1021.830 13.95 13.93 8.986 3.05306 4.49158 28.16 1477.99 1021.836 14.25 14.23 8.985 3.05309 4.49188 28.16 1477.99 1021.839 14.55 14.53 8.984 3.05317 4.49209 28.17 1478.00 1021.842 14.85 14.83 8.984 3.05289 4.49166 28.16 1478.00 1021.841 15.15 15.13 8.982 3.05230 4.49100 28.16 1477.99 1021.839 15.45 15.43 8.983 3.05363 4.49293 28.17 1478.01 1021.850 15.75 15.73 8.982 3.05330 4.49248 28.17 1478.01 1021.849 16.05 16.03 8.982 3.05221 4.49094 28.16 1478.00 1021.842 16.35 16.33 8.980 3.05346 4.49304 28.17 1478.02 1021.855 16.65 16.63 8.977 3.05347 4.49339 28.17 1478.02 1021.858 16.95 16.93 8.969 3.05268 4.49332 28.17 1477.99 1021.859 17.25 17.22 8.955 3.05306 4.49581 28.19 1477.96 1021.875 17.55 17.52 8.937 3.05244 4.49719 28.19 1477.90 1021.885 17.85 17.82 8.911 3.05251 4.50077 28.22 1477.84 1021.906 18.15 18.12 8.876 3.05176 4.50434 28.24 1477.73 1021.929 18.45 18.42 8.847 3.05183 4.50830 28.26 1477.66 1021.953 18.75 18.72 8.817 3.05144 4.51174 28.28 1477.57 1021.974 19.05 19.02 8.764 3.05223 4.51991 28.33 1477.44 1022.022 19.35 19.32 8.721 3.05388 4.52822 28.38 1477.35 1022.070 19.65 19.62 8.703 3.05519 4.53257 28.41 1477.32 1022.095 19.95 19.92 8.680 3.05996 4.54273 28.48 1477.32 1022.153 20.25 20.22 8.651 3.06684 4.55679 28.57 1477.33 1022.231 20.55 20.52 8.632 3.07357 4.56939 28.65 1477.37 1022.302 20.85 20.82 8.619 3.07854 4.57860 28.72 1477.40 1022.353 21.15 21.11 8.612 3.08115 4.58339 28.75 1477.42 1022.381 21.45 21.41 8.610 3.08218 4.58528 28.76 1477.43 1022.392 21.75 21.71 8.604 3.08273 4.58690 28.77 1477.42 1022.403 22.05 22.01 8.599 3.08308 4.58802 28.78 1477.42 1022.410 22.35 22.31 8.597 3.08277 4.58784 28.78 1477.41 1022.411 22.65 22.61 8.596 3.08307 4.58847 28.78 1477.42 1022.415 22.95 22.91 8.595 3.08378 4.58960 28.79 1477.43 1022.423 23.25 23.21 8.595 3.08320 4.58884 28.78 1477.43 1022.420 23.55 23.51 8.595 3.08343 4.58913 28.78 1477.44 1022.423 23.85 23.81 8.596 3.08329 4.58873 28.78 1477.44 1022.422 24.15 24.11 8.597 3.08421 4.59002 28.79 1477.46 1022.430 24.45 24.40 8.598 3.08588 4.59239 28.81 1477.49 1022.444 24.75 24.70 8.599 3.08863 4.59634 28.83 1477.53 1022.467 25.05 25.00 8.601 3.08989 4.59797 28.85 1477.56 1022.477 25.35 25.30 8.603 3.09073 4.59896 28.85 1477.58 1022.484 25.65 25.60 8.603 3.09111 4.59944 28.86 1477.59 1022.487 25.95 25.90 8.605 3.09180 4.60024 28.86 1477.61 1022.493 26.25 26.20 8.607 3.09411 4.60337 28.88 1477.65 1022.511 26.55 26.50 8.609 3.09659 4.60677 28.91 1477.69 1022.531 26.85 26.80 8.610 3.09893 4.61010 28.93 1477.73 1022.550 27.15 27.10 8.611 3.09965 4.61103 28.94 1477.74 1022.556 27.45 27.39 8.614 3.10020 4.61144 28.94 1477.76 1022.560 27.75 27.69 8.615 3.10102 4.61259 28.95 1477.78 1022.567 28.05 27.99 8.615 3.10466 4.61797 28.99 1477.83 1022.598 28.35 28.29 8.618 3.10653 4.62040 29.00 1477.87 1022.612 28.65 28.59 8.619 3.10813 4.62254 29.02 1477.90 1022.625 28.95 28.89 8.621 3.10856 4.62292 29.02 1477.91 1022.628 29.25 29.19 8.621 3.10839 4.62274 29.02 1477.91 1022.629 29.55 29.49 8.621 3.10802 4.62221 29.01 1477.91 1022.627 29.85 29.79 8.622 3.10878 4.62319 29.02 1477.93 1022.633 30.00 29.94 8.624 3.10928 4.62367 29.03 1477.95 1022.637