*2026/01/16 10:37:55.96 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 16:29:23.000 END TIME : UTC 2025/06/24 16:29:51.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 145 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.34 2 Depth metres 0.15 43.25 3 Temperature 'deg C (ITS90)' 12.774 13.497 4 Conductivity S/m 3.35064 3.42586 5 Conductance:Specific S/m 4.35566 4.53167 6 Salinity PSS-78 27.65 28.82 7 Speed:Sound m/s 1491.93 1493.4 8 Density kg/m^3 1020.623 1021.846 $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 : 180 LATITUDE : 49 12.05660 N ! (deg min) LONGITUDE : 125 45.98790 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_162923 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 145 145 MERGEHDR 1.3 2026/01/16 10:35:45 145 145 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:46 145 145 CALIB 12.1 2026/01/16 10:37:19 145 145 CLEAN 5.3 2026/01/16 10:37:55 145 145 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 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 10:36:46 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 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 13.497 3.37340 4.38135 27.84 1493.40 1020.757 0.45 0.45 13.463 3.35064 4.35566 27.65 1493.08 1020.623 0.75 0.75 13.388 3.37435 4.39508 27.92 1493.15 1020.849 1.05 1.05 13.290 3.37571 4.40807 28.01 1492.92 1020.934 1.35 1.35 13.228 3.37171 4.41002 28.02 1492.73 1020.954 1.65 1.65 13.224 3.37081 4.40934 28.01 1492.71 1020.952 1.95 1.95 13.216 3.36970 4.40880 28.01 1492.68 1020.951 2.25 2.25 13.203 3.36877 4.40903 28.01 1492.65 1020.955 2.55 2.55 13.179 3.36873 4.41170 28.02 1492.59 1020.974 2.85 2.85 13.140 3.37006 4.41805 28.07 1492.51 1021.015 3.15 3.15 13.106 3.36949 4.42120 28.09 1492.43 1021.038 3.45 3.44 13.088 3.37007 4.42401 28.10 1492.39 1021.057 3.75 3.74 13.075 3.37008 4.42561 28.11 1492.36 1021.068 4.05 4.04 13.059 3.36949 4.42662 28.12 1492.32 1021.077 4.35 4.34 13.045 3.36967 4.42855 28.13 1492.29 1021.091 4.65 4.64 13.030 3.36959 4.43015 28.14 1492.26 1021.102 4.95 4.94 13.016 3.36925 4.43140 28.15 1492.22 1021.112 5.25 5.24 13.004 3.36900 4.43237 28.15 1492.20 1021.120 5.55 5.54 12.999 3.36896 4.43299 28.16 1492.19 1021.126 5.85 5.84 12.991 3.36856 4.43334 28.16 1492.17 1021.130 6.15 6.14 12.981 3.36887 4.43494 28.17 1492.15 1021.141 6.45 6.44 12.966 3.37015 4.43839 28.19 1492.13 1021.163 6.75 6.74 12.942 3.37202 4.44366 28.23 1492.10 1021.196 7.05 7.04 12.915 3.37451 4.45012 28.27 1492.06 1021.236 7.35 7.34 12.901 3.37795 4.45632 28.31 1492.07 1021.273 7.65 7.64 12.876 3.38037 4.46246 28.36 1492.04 1021.310 7.95 7.94 12.852 3.37969 4.46430 28.37 1491.98 1021.324 8.25 8.24 12.837 3.38116 4.46808 28.39 1491.96 1021.348 8.55 8.54 12.827 3.38123 4.46936 28.40 1491.94 1021.358 8.85 8.84 12.819 3.38158 4.47070 28.41 1491.93 1021.367 9.15 9.13 12.815 3.38194 4.47171 28.42 1491.93 1021.375 9.45 9.43 12.814 3.38180 4.47163 28.41 1491.93 1021.375 9.75 9.73 12.813 3.38221 4.47230 28.42 1491.93 1021.381 10.05 10.03 12.811 3.38217 4.47246 28.42 1491.93 1021.383 10.35 10.33 12.809 3.38218 4.47270 28.42 1491.93 1021.386 10.65 10.63 12.808 3.38199 4.47257 28.42 1491.93 1021.386 10.95 10.93 12.807 3.38243 4.47328 28.43 1491.94 1021.392 11.25 11.23 12.804 3.38338 4.47487 28.44 1491.95 1021.402 11.55 11.53 12.803 3.38279 4.47421 28.43 1491.94 1021.400 11.85 11.83 12.802 3.38331 4.47508 28.44 1491.95 1021.406 12.15 12.13 12.801 3.38273 4.47437 28.43 1491.95 1021.403 12.45 12.43 12.800 3.38375 4.47582 28.44 1491.96 1021.413 12.75 12.73 12.799 3.38464 4.47712 28.45 1491.97 1021.421 13.05 13.03 12.798 3.38480 4.47746 28.45 1491.98 1021.424 13.35 13.33 12.797 3.38469 4.47741 28.45 1491.98 1021.425 13.65 13.63 12.797 3.38519 4.47811 28.46 1491.99 1021.431 13.95 13.93 12.797 3.38515 4.47804 28.46 1491.99 1021.432 14.25 14.22 12.796 3.38502 4.47804 28.46 1491.99 1021.433 14.55 14.52 12.796 3.38525 4.47826 28.46 1492.00 1021.435 14.85 14.82 12.796 3.38471 4.47762 28.45 1492.00 1021.433 15.15 15.12 12.796 3.38493 4.47786 28.45 1492.01 1021.436 15.45 15.42 12.796 3.38454 4.47732 28.45 1492.01 1021.434 15.75 15.72 12.798 3.38554 4.47848 28.46 1492.03 1021.441 16.05 16.02 12.797 3.38592 4.47913 28.46 1492.03 1021.446 16.35 16.32 12.795 3.38672 4.48035 28.47 1492.04 1021.454 16.65 16.62 12.796 3.38558 4.47879 28.46 1492.04 1021.447 16.95 16.92 12.796 3.38730 4.48098 28.48 1492.06 1021.460 17.25 17.22 12.796 3.38750 4.48134 28.48 1492.07 1021.464 17.55 17.52 12.795 3.38686 4.48057 28.47 1492.06 1021.461 17.85 17.82 12.796 3.38719 4.48090 28.48 1492.07 1021.464 18.15 18.12 12.795 3.38743 4.48132 28.48 1492.08 1021.467 18.45 18.42 12.796 3.38706 4.48077 28.47 1492.08 1021.466 18.75 18.72 12.795 3.38752 4.48143 28.48 1492.09 1021.471 19.05 19.01 12.795 3.38817 4.48226 28.48 1492.10 1021.476 19.35 19.31 12.795 3.38868 4.48302 28.49 1492.11 1021.482 19.65 19.61 12.795 3.38874 4.48309 28.49 1492.12 1021.483 19.95 19.91 12.794 3.38950 4.48419 28.50 1492.13 1021.491 20.25 20.21 12.793 3.39001 4.48500 28.50 1492.14 1021.497 20.55 20.51 12.791 3.39041 4.48568 28.51 1492.14 1021.502 20.85 20.81 12.792 3.39011 4.48527 28.50 1492.14 1021.501 21.15 21.11 12.791 3.39079 4.48622 28.51 1492.16 1021.507 21.45 21.41 12.790 3.39148 4.48721 28.52 1492.17 1021.514 21.75 21.71 12.788 3.39190 4.48805 28.52 1492.17 1021.520 22.05 22.01 12.787 3.39208 4.48843 28.53 1492.17 1021.524 22.35 22.31 12.788 3.39246 4.48886 28.53 1492.18 1021.527 22.65 22.61 12.786 3.39245 4.48898 28.53 1492.19 1021.529 22.95 22.91 12.785 3.39232 4.48894 28.53 1492.19 1021.530 23.25 23.21 12.785 3.39307 4.48993 28.54 1492.20 1021.537 23.55 23.51 12.785 3.39294 4.48986 28.54 1492.20 1021.538 23.85 23.80 12.785 3.39360 4.49066 28.54 1492.21 1021.544 24.15 24.10 12.784 3.39363 4.49089 28.54 1492.22 1021.546 24.45 24.40 12.782 3.39377 4.49122 28.54 1492.22 1021.550 24.75 24.70 12.781 3.39314 4.49048 28.54 1492.21 1021.547 25.05 25.00 12.781 3.39370 4.49134 28.54 1492.22 1021.553 25.35 25.30 12.780 3.39282 4.49025 28.54 1492.22 1021.548 25.65 25.60 12.779 3.39347 4.49116 28.54 1492.23 1021.555 25.95 25.90 12.779 3.39383 4.49171 28.55 1492.23 1021.559 26.25 26.20 12.776 3.39279 4.49063 28.54 1492.22 1021.555 26.55 26.50 12.774 3.39335 4.49162 28.55 1492.23 1021.562 26.85 26.80 12.776 3.39310 4.49104 28.54 1492.23 1021.559 27.15 27.10 12.774 3.39283 4.49097 28.54 1492.23 1021.561 27.45 27.40 12.775 3.39399 4.49235 28.55 1492.25 1021.569 27.75 27.70 12.776 3.39462 4.49311 28.56 1492.27 1021.575 28.05 28.00 12.775 3.39506 4.49373 28.56 1492.27 1021.579 28.35 28.30 12.775 3.39624 4.49541 28.57 1492.29 1021.590 28.65 28.59 12.775 3.39662 4.49587 28.58 1492.30 1021.594 28.95 28.89 12.776 3.39757 4.49703 28.58 1492.32 1021.601 29.25 29.19 12.777 3.40153 4.50217 28.62 1492.37 1021.630 29.55 29.49 12.778 3.40618 4.50817 28.66 1492.43 1021.664 29.85 29.79 12.779 3.40795 4.51040 28.68 1492.45 1021.677 30.15 30.09 12.780 3.40834 4.51080 28.68 1492.46 1021.681 30.45 30.39 12.781 3.40919 4.51181 28.69 1492.48 1021.687 30.75 30.69 12.783 3.41228 4.51566 28.71 1492.53 1021.709 31.05 30.99 12.785 3.41412 4.51780 28.73 1492.56 1021.722 31.35 31.29 12.787 3.41515 4.51894 28.74 1492.58 1021.729 31.65 31.59 12.789 3.41577 4.51955 28.74 1492.59 1021.733 31.95 31.89 12.792 3.41617 4.51971 28.74 1492.61 1021.735 32.25 32.19 12.794 3.41770 4.52152 28.76 1492.64 1021.746 32.55 32.49 12.795 3.41831 4.52217 28.76 1492.65 1021.751 32.85 32.79 12.794 3.41942 4.52376 28.77 1492.67 1021.761 33.15 33.08 12.793 3.41891 4.52317 28.77 1492.66 1021.759 33.45 33.38 12.792 3.41888 4.52325 28.77 1492.67 1021.761 33.75 33.68 12.793 3.41842 4.52252 28.76 1492.67 1021.758 34.05 33.98 12.795 3.41890 4.52301 28.77 1492.68 1021.762 34.35 34.28 12.794 3.41868 4.52276 28.76 1492.68 1021.762 34.65 34.58 12.795 3.41902 4.52314 28.77 1492.69 1021.765 34.95 34.88 12.795 3.42096 4.52562 28.78 1492.72 1021.780 35.25 35.18 12.796 3.42127 4.52601 28.79 1492.73 1021.783 35.55 35.48 12.796 3.42201 4.52692 28.79 1492.74 1021.789 35.85 35.78 12.798 3.42185 4.52649 28.79 1492.75 1021.788 36.15 36.08 12.798 3.42212 4.52691 28.79 1492.76 1021.792 36.45 36.38 12.797 3.42210 4.52691 28.79 1492.76 1021.793 36.75 36.68 12.798 3.42214 4.52689 28.79 1492.77 1021.794 37.05 36.98 12.798 3.42231 4.52706 28.79 1492.78 1021.796 37.35 37.27 12.798 3.42213 4.52692 28.79 1492.78 1021.797 37.65 37.57 12.798 3.42252 4.52736 28.80 1492.79 1021.800 37.95 37.87 12.798 3.42167 4.52629 28.79 1492.78 1021.796 38.25 38.17 12.798 3.42253 4.52744 28.80 1492.80 1021.803 38.55 38.47 12.798 3.42304 4.52805 28.80 1492.81 1021.808 38.85 38.77 12.798 3.42269 4.52762 28.80 1492.81 1021.807 39.15 39.07 12.798 3.42243 4.52727 28.79 1492.81 1021.806 39.45 39.37 12.797 3.42290 4.52797 28.80 1492.82 1021.811 39.75 39.67 12.799 3.42326 4.52830 28.80 1492.83 1021.814 40.05 39.97 12.799 3.42316 4.52808 28.80 1492.84 1021.814 40.35 40.27 12.799 3.42354 4.52867 28.80 1492.84 1021.819 40.65 40.57 12.800 3.42442 4.52969 28.81 1492.86 1021.825 40.95 40.87 12.799 3.42415 4.52942 28.81 1492.86 1021.825 41.25 41.17 12.800 3.42393 4.52896 28.81 1492.87 1021.824 41.55 41.46 12.800 3.42325 4.52816 28.80 1492.86 1021.821 41.85 41.76 12.800 3.42414 4.52929 28.81 1492.88 1021.828 42.15 42.06 12.799 3.42402 4.52926 28.81 1492.88 1021.830 42.45 42.36 12.799 3.42368 4.52874 28.80 1492.88 1021.828 42.75 42.66 12.799 3.42472 4.53013 28.81 1492.90 1021.837 43.05 42.96 12.799 3.42586 4.53167 28.82 1492.91 1021.846 43.34 43.25 12.799 3.42483 4.53032 28.81 1492.91 1021.840