*2026/01/16 09:57:50.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 23:46:01.000 END TIME : UTC 2024/05/21 23:46:16.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 80 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.74 2 Depth metres 0.15 23.65 3 Temperature 'deg C (ITS90)' 9.3 15.027 4 Conductivity S/m 3.18265 3.59168 5 Conductance:Specific S/m 3.97567 5.07452 6 Salinity PSS-78 25.09 32.28 7 Speed:Sound m/s 1484.35 1497.17 8 Density kg/m^3 1018.345 1025.049 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 123 LATITUDE : 48 57.74110 N ! (deg min) LONGITUDE : 125 3.76440 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_234601 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 80 80 MERGEHDR 1.3 2026/01/16 09:53:52 80 80 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 80 80 CALIB 12.1 2026/01/16 09:56:50 80 80 CLEAN 5.3 2026/01/16 09:57:50 80 80 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:50 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 09:57:46 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 15.010 3.18890 3.98511 25.15 1495.27 1018.396 0.45 0.45 15.024 3.18340 3.97682 25.10 1495.26 1018.351 0.75 0.75 15.027 3.18265 3.97567 25.09 1495.26 1018.345 1.05 1.05 15.019 3.19407 3.99065 25.19 1495.36 1018.428 1.35 1.35 14.996 3.23488 4.04400 25.56 1495.72 1018.719 1.65 1.65 14.947 3.25543 4.07471 25.78 1495.81 1018.893 1.95 1.95 14.907 3.27667 4.10539 25.99 1495.94 1019.066 2.25 2.25 14.842 3.30945 4.15325 26.32 1496.11 1019.335 2.55 2.55 14.773 3.32245 4.17675 26.48 1496.08 1019.474 2.85 2.85 14.741 3.33378 4.19435 26.60 1496.12 1019.575 3.15 3.15 14.690 3.35574 4.22745 26.83 1496.23 1019.763 3.45 3.45 14.656 3.41000 4.29944 27.34 1496.71 1020.159 3.75 3.75 14.601 3.44850 4.35408 27.72 1496.98 1020.464 4.05 4.05 14.375 3.51923 4.46882 28.51 1497.17 1021.124 4.35 4.35 14.224 3.53912 4.51143 28.80 1497.02 1021.380 4.65 4.65 13.982 3.56040 4.56673 29.18 1496.66 1021.718 4.95 4.95 13.754 3.57518 4.61271 29.49 1496.28 1022.003 5.25 5.25 13.620 3.58525 4.64170 29.68 1496.07 1022.182 5.55 5.55 13.386 3.59168 4.67833 29.92 1495.58 1022.415 5.85 5.85 12.875 3.58881 4.73770 30.30 1494.31 1022.807 6.15 6.15 12.614 3.58323 4.76318 30.46 1493.61 1022.980 6.45 6.44 12.322 3.57524 4.78968 30.62 1492.81 1023.161 6.75 6.74 12.117 3.56886 4.80764 30.73 1492.24 1023.283 7.05 7.04 11.925 3.56430 4.82641 30.84 1491.72 1023.408 7.35 7.34 11.748 3.55948 4.84314 30.94 1491.23 1023.520 7.65 7.64 11.549 3.55188 4.85902 31.04 1490.65 1023.628 7.95 7.94 11.367 3.54742 4.87731 31.15 1490.15 1023.748 8.25 8.24 11.112 3.53731 4.89771 31.26 1489.40 1023.884 8.55 8.54 10.931 3.53177 4.91464 31.36 1488.88 1023.995 8.85 8.83 10.770 3.52816 4.93179 31.46 1488.44 1024.104 9.15 9.13 10.686 3.52765 4.94268 31.53 1488.23 1024.172 9.45 9.43 10.635 3.52767 4.94970 31.57 1488.10 1024.216 9.75 9.73 10.617 3.52669 4.95087 31.58 1488.05 1024.225 10.05 10.03 10.601 3.52596 4.95209 31.59 1488.01 1024.234 10.35 10.33 10.574 3.52506 4.95449 31.60 1487.93 1024.251 10.65 10.63 10.500 3.52104 4.95920 31.63 1487.70 1024.283 10.95 10.92 10.356 3.51704 4.97376 31.71 1487.29 1024.376 11.25 11.22 10.320 3.51599 4.97733 31.73 1487.19 1024.399 11.55 11.52 10.287 3.51537 4.98105 31.75 1487.11 1024.423 11.85 11.82 10.270 3.51476 4.98261 31.76 1487.06 1024.434 12.15 12.12 10.257 3.51427 4.98375 31.77 1487.03 1024.443 12.45 12.42 10.240 3.51373 4.98537 31.78 1486.98 1024.454 12.75 12.72 10.210 3.51315 4.98889 31.80 1486.90 1024.477 13.05 13.01 10.173 3.51196 4.99242 31.82 1486.80 1024.500 13.35 13.31 10.094 3.50971 5.00048 31.87 1486.58 1024.551 13.65 13.61 10.037 3.50653 5.00398 31.88 1486.40 1024.575 13.95 13.91 9.969 3.50412 5.01028 31.92 1486.20 1024.616 14.25 14.21 9.934 3.50235 5.01276 31.93 1486.09 1024.633 14.55 14.51 9.896 3.50087 5.01619 31.95 1485.98 1024.656 14.85 14.80 9.881 3.50160 5.01935 31.97 1485.96 1024.675 15.15 15.10 9.863 3.50049 5.02035 31.98 1485.90 1024.683 15.45 15.40 9.847 3.49979 5.02169 31.98 1485.86 1024.693 15.75 15.70 9.827 3.49951 5.02417 32.00 1485.81 1024.709 16.05 16.00 9.820 3.50011 5.02607 32.01 1485.80 1024.721 16.35 16.30 9.804 3.50003 5.02815 32.02 1485.77 1024.735 16.65 16.60 9.795 3.49938 5.02855 32.02 1485.74 1024.739 16.95 16.89 9.787 3.49903 5.02923 32.03 1485.72 1024.744 17.25 17.19 9.763 3.49836 5.03169 32.04 1485.66 1024.760 17.55 17.49 9.755 3.49806 5.03239 32.05 1485.64 1024.766 17.85 17.79 9.714 3.49804 5.03843 32.08 1485.53 1024.803 18.15 18.09 9.655 3.49355 5.04046 32.09 1485.33 1024.819 18.45 18.39 9.611 3.49229 5.04507 32.12 1485.21 1024.848 18.75 18.68 9.523 3.48810 5.05187 32.15 1484.94 1024.891 19.05 18.98 9.459 3.48653 5.05901 32.19 1484.76 1024.936 19.35 19.28 9.421 3.48610 5.06395 32.22 1484.66 1024.966 19.65 19.58 9.396 3.48442 5.06515 32.23 1484.58 1024.975 19.95 19.88 9.382 3.48409 5.06671 32.24 1484.54 1024.986 20.25 20.18 9.367 3.48370 5.06842 32.25 1484.50 1024.997 20.55 20.47 9.341 3.48231 5.07022 32.25 1484.42 1025.010 20.85 20.77 9.335 3.48231 5.07111 32.26 1484.41 1025.016 21.15 21.07 9.335 3.48282 5.07176 32.26 1484.43 1025.021 21.45 21.37 9.344 3.48256 5.07013 32.25 1484.45 1025.013 21.75 21.67 9.334 3.48173 5.07041 32.25 1484.42 1025.016 22.05 21.97 9.317 3.48136 5.07229 32.27 1484.38 1025.028 22.35 22.26 9.308 3.48077 5.07285 32.27 1484.35 1025.033 22.65 22.56 9.307 3.48114 5.07349 32.27 1484.36 1025.038 22.95 22.86 9.306 3.48043 5.07258 32.27 1484.35 1025.034 23.25 23.16 9.305 3.48052 5.07294 32.27 1484.35 1025.038 23.55 23.46 9.300 3.48091 5.07426 32.28 1484.35 1025.047 23.74 23.65 9.302 3.48134 5.07452 32.28 1484.36 1025.049