*2026/01/16 10:37:42.94 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/20 23:54:41.000 END TIME : UTC 2025/01/20 23:55:07.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 134 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.94 2 Depth metres 0.15 39.94 3 Temperature 'deg C (ITS90)' 8.866 10.389 4 Conductivity S/m 1.90423 2.96359 5 Conductance:Specific S/m 2.81144 4.19756 6 Salinity PSS-78 16.84 26.26 7 Speed:Sound m/s 1463.48 1481.15 8 Density kg/m^3 1012.958 1020.279 $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 : 2 LATITUDE : 49 7.94240 N ! (deg min) LONGITUDE : 125 42.43460 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250120_235441 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 134 134 MERGEHDR 1.3 2026/01/16 10:35:37 134 134 HDREDIT2 3.2 2026/01/16 10:36:07 ? ? REMOVECH 8.2 2026/01/16 10:36:36 134 134 CALIB 12.1 2026/01/16 10:37:09 134 134 CLEAN 5.3 2026/01/16 10:37:42 134 134 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:07 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 8.866 1.90423 2.81144 16.84 1463.48 1012.958 0.45 0.45 9.238 2.28905 3.34285 20.38 1469.23 1015.669 0.75 0.75 9.006 2.32930 3.42486 20.91 1468.99 1016.112 1.05 1.05 9.081 2.47171 3.62619 22.27 1470.94 1017.162 1.35 1.35 9.237 2.55336 3.72899 22.97 1472.40 1017.695 1.65 1.66 9.226 2.56821 3.75186 23.13 1472.55 1017.817 1.95 1.96 9.356 2.57695 3.75037 23.13 1473.05 1017.803 2.25 2.26 9.569 2.60902 3.77359 23.31 1474.07 1017.912 2.55 2.56 9.738 2.63684 3.79531 23.47 1474.91 1018.017 2.85 2.86 9.846 2.65846 3.81461 23.61 1475.48 1018.112 3.15 3.16 9.904 2.68208 3.84211 23.80 1475.94 1018.255 3.45 3.46 9.927 2.69205 3.85383 23.89 1476.13 1018.317 3.75 3.76 9.969 2.69903 3.85918 23.93 1476.34 1018.343 4.05 4.06 9.977 2.70409 3.86548 23.97 1476.43 1018.377 4.35 4.36 9.956 2.70513 3.86934 23.99 1476.38 1018.401 4.65 4.66 9.921 2.70934 3.87922 24.06 1476.33 1018.457 4.95 4.96 9.890 2.71318 3.88822 24.12 1476.29 1018.508 5.25 5.26 9.884 2.72262 3.90239 24.21 1476.39 1018.586 5.55 5.56 9.882 2.72682 3.90865 24.25 1476.44 1018.620 5.85 5.86 9.886 2.73578 3.92104 24.34 1476.56 1018.687 6.15 6.16 9.838 2.75030 3.94730 24.51 1476.60 1018.831 6.45 6.46 9.792 2.75242 3.95555 24.57 1476.50 1018.880 6.75 6.76 9.826 2.75165 3.95054 24.53 1476.59 1018.852 7.05 7.06 9.828 2.75013 3.94814 24.52 1476.59 1018.841 7.35 7.36 9.782 2.75171 3.95564 24.57 1476.48 1018.885 7.65 7.66 9.767 2.75200 3.95779 24.58 1476.44 1018.899 7.95 7.96 9.758 2.75334 3.96072 24.60 1476.44 1018.916 8.25 8.26 9.760 2.75637 3.96483 24.63 1476.48 1018.939 8.55 8.56 9.773 2.76340 3.97352 24.69 1476.61 1018.986 8.85 8.86 9.786 2.77546 3.98938 24.80 1476.79 1019.071 9.15 9.16 9.796 2.78357 3.99980 24.87 1476.93 1019.127 9.45 9.46 9.808 2.78784 4.00461 24.90 1477.02 1019.153 9.75 9.76 9.827 2.79224 4.00874 24.93 1477.13 1019.175 10.05 10.06 9.851 2.79390 4.00835 24.93 1477.22 1019.172 10.35 10.36 9.874 2.79666 4.00965 24.94 1477.33 1019.179 10.65 10.66 9.905 2.80116 4.01257 24.97 1477.47 1019.194 10.95 10.96 9.934 2.80771 4.01861 25.01 1477.64 1019.225 11.25 11.26 9.938 2.81209 4.02438 25.05 1477.71 1019.257 11.55 11.56 9.941 2.81527 4.02860 25.08 1477.76 1019.280 11.85 11.86 9.966 2.81665 4.02765 25.07 1477.85 1019.275 12.15 12.16 9.989 2.82087 4.03110 25.10 1477.97 1019.293 12.45 12.46 9.996 2.82696 4.03903 25.16 1478.07 1019.336 12.75 12.76 10.006 2.83054 4.04296 25.18 1478.14 1019.357 13.05 13.06 10.016 2.83166 4.04336 25.19 1478.19 1019.360 13.35 13.36 10.030 2.83361 4.04451 25.20 1478.26 1019.366 13.65 13.66 10.051 2.83755 4.04769 25.22 1478.37 1019.383 13.95 13.96 10.063 2.84264 4.05363 25.26 1478.47 1019.415 14.25 14.26 10.075 2.84656 4.05778 25.29 1478.56 1019.438 14.55 14.56 10.111 2.85300 4.06279 25.33 1478.74 1019.463 14.85 14.86 10.154 2.85864 4.06590 25.35 1478.93 1019.478 15.15 15.16 10.191 2.86503 4.07069 25.39 1479.12 1019.502 15.45 15.46 10.220 2.87263 4.07818 25.44 1479.29 1019.541 15.75 15.76 10.259 2.87627 4.07874 25.45 1479.45 1019.542 16.05 16.06 10.272 2.87959 4.08203 25.48 1479.53 1019.560 16.35 16.36 10.298 2.87788 4.07656 25.44 1479.59 1019.530 16.65 16.66 10.341 2.87700 4.07036 25.40 1479.70 1019.495 16.95 16.96 10.360 2.88305 4.07676 25.45 1479.83 1019.529 17.25 17.26 10.359 2.89361 4.09173 25.55 1479.96 1019.610 17.55 17.56 10.368 2.89883 4.09807 25.59 1480.05 1019.645 17.85 17.86 10.389 2.90034 4.09779 25.59 1480.13 1019.643 18.15 18.16 10.385 2.90175 4.10031 25.61 1480.14 1019.658 18.45 18.46 10.359 2.90301 4.10508 25.64 1480.09 1019.687 18.75 18.76 10.344 2.89791 4.09961 25.60 1479.99 1019.660 19.05 19.06 10.306 2.89020 4.09306 25.55 1479.80 1019.629 19.35 19.36 10.259 2.88741 4.09454 25.56 1479.64 1019.642 19.65 19.66 10.234 2.88712 4.09709 25.57 1479.57 1019.659 19.95 19.96 10.214 2.88709 4.09932 25.59 1479.52 1019.674 20.25 20.26 10.192 2.89198 4.10883 25.65 1479.52 1019.728 20.55 20.56 10.196 2.89546 4.11331 25.68 1479.58 1019.753 20.85 20.86 10.181 2.89494 4.11436 25.69 1479.53 1019.761 21.15 21.16 10.170 2.89054 4.10939 25.65 1479.45 1019.736 21.45 21.46 10.154 2.88931 4.10945 25.65 1479.40 1019.739 21.75 21.76 10.144 2.88943 4.11087 25.66 1479.38 1019.749 22.05 22.06 10.131 2.88865 4.11122 25.66 1479.34 1019.753 22.35 22.36 10.120 2.88850 4.11236 25.67 1479.31 1019.761 22.65 22.66 10.111 2.88750 4.11200 25.66 1479.27 1019.761 22.95 22.96 10.104 2.88849 4.11417 25.68 1479.27 1019.775 23.25 23.26 10.103 2.88914 4.11521 25.69 1479.28 1019.781 23.55 23.56 10.103 2.89034 4.11693 25.70 1479.30 1019.792 23.85 23.86 10.103 2.89525 4.12390 25.74 1479.36 1019.831 24.15 24.16 10.089 2.90010 4.13244 25.80 1479.39 1019.879 24.45 24.46 10.062 2.90013 4.13568 25.82 1479.32 1019.899 24.75 24.76 10.042 2.89061 4.12449 25.74 1479.15 1019.842 25.05 25.06 10.014 2.88999 4.12691 25.76 1479.07 1019.859 25.35 25.36 9.981 2.88960 4.13025 25.78 1478.98 1019.880 25.65 25.66 9.984 2.88958 4.12991 25.77 1478.99 1019.879 25.95 25.96 9.985 2.89030 4.13073 25.78 1479.01 1019.885 26.25 26.26 9.984 2.89114 4.13206 25.79 1479.02 1019.893 26.55 26.56 9.986 2.89123 4.13202 25.79 1479.03 1019.894 26.85 26.86 9.988 2.89159 4.13232 25.79 1479.04 1019.897 27.15 27.16 9.989 2.89238 4.13330 25.80 1479.06 1019.904 27.45 27.46 9.984 2.89260 4.13420 25.80 1479.05 1019.910 27.75 27.76 9.976 2.89245 4.13490 25.81 1479.03 1019.916 28.05 28.06 9.970 2.89228 4.13540 25.81 1479.02 1019.920 28.35 28.36 9.963 2.89292 4.13716 25.82 1479.01 1019.931 28.65 28.66 9.956 2.89386 4.13932 25.83 1479.01 1019.945 28.95 28.96 9.949 2.89470 4.14136 25.85 1479.00 1019.957 29.25 29.26 9.946 2.89549 4.14287 25.86 1479.01 1019.967 29.55 29.56 9.933 2.89558 4.14450 25.87 1478.98 1019.978 29.85 29.86 9.919 2.89562 4.14621 25.88 1478.94 1019.990 30.15 30.16 9.888 2.89385 4.14729 25.88 1478.84 1019.999 30.45 30.46 9.869 2.89099 4.14554 25.87 1478.76 1019.992 30.75 30.76 9.829 2.88862 4.14682 25.87 1478.62 1020.003 31.05 31.06 9.807 2.88865 4.14950 25.89 1478.56 1020.020 31.35 31.36 9.788 2.88802 4.15087 25.90 1478.51 1020.030 31.65 31.66 9.779 2.88769 4.15147 25.90 1478.48 1020.035 31.95 31.96 9.772 2.88710 4.15152 25.90 1478.46 1020.037 32.25 32.25 9.765 2.88714 4.15238 25.90 1478.44 1020.044 32.55 32.55 9.756 2.88772 4.15427 25.92 1478.43 1020.056 32.85 32.85 9.748 2.88741 4.15477 25.92 1478.41 1020.060 33.15 33.15 9.746 2.88779 4.15562 25.92 1478.41 1020.066 33.45 33.45 9.746 2.88801 4.15586 25.93 1478.42 1020.069 33.75 33.75 9.751 2.88873 4.15631 25.93 1478.45 1020.072 34.05 34.05 9.750 2.88876 4.15650 25.93 1478.45 1020.075 34.35 34.35 9.759 2.88906 4.15583 25.93 1478.48 1020.072 34.65 34.65 9.787 2.89254 4.15750 25.94 1478.61 1020.080 34.95 34.95 9.809 2.89932 4.16455 25.99 1478.76 1020.117 35.25 35.25 9.834 2.90169 4.16502 26.00 1478.86 1020.120 35.55 35.55 9.854 2.90260 4.16398 25.99 1478.93 1020.114 35.85 35.85 9.857 2.90267 4.16372 25.99 1478.95 1020.114 36.15 36.15 9.860 2.90371 4.16487 26.00 1478.97 1020.121 36.45 36.45 9.865 2.90352 4.16400 25.99 1478.99 1020.117 36.75 36.75 9.868 2.90779 4.16972 26.03 1479.06 1020.149 37.05 37.05 9.888 2.91150 4.17261 26.05 1479.16 1020.164 37.35 37.35 9.908 2.91510 4.17544 26.07 1479.26 1020.179 37.65 37.65 9.931 2.92607 4.18831 26.17 1479.47 1020.248 37.95 37.95 10.010 2.93213 4.18759 26.17 1479.76 1020.240 38.25 38.25 10.088 2.93397 4.18082 26.13 1480.01 1020.199 38.55 38.55 10.128 2.93509 4.17766 26.11 1480.14 1020.180 38.85 38.85 10.152 2.94085 4.18311 26.15 1480.28 1020.209 39.15 39.15 10.201 2.94745 4.18655 26.18 1480.50 1020.225 39.45 39.45 10.274 2.96127 4.19756 26.26 1480.87 1020.279 39.75 39.75 10.336 2.96359 4.19351 26.24 1481.08 1020.254 39.94 39.94 10.364 2.96289 4.18909 26.21 1481.15 1020.229