*2026/01/16 09:57:58.25 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/12 19:23:12.000 END TIME : UTC 2024/12/12 19:23:37.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.75 2 Depth metres 0.15 37.61 3 Temperature 'deg C (ITS90)' 7.706 11.435 4 Conductivity S/m 1.95896 3.53425 5 Conductance:Specific S/m 2.98287 4.90432 6 Salinity PSS-78 17.89 31.27 7 Speed:Sound m/s 1460.71 1490.34 8 Density kg/m^3 1013.888 1024.065 $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 : 350 LATITUDE : 50 3.20710 N ! (deg min) LONGITUDE : 127 13.74520 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241212_192312 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:11 126 126 MERGEHDR 1.3 2026/01/16 09:54:16 126 126 HDREDIT2 3.2 2026/01/16 09:55:17 ? ? REMOVECH 8.2 2026/01/16 09:56:27 126 126 CALIB 12.1 2026/01/16 09:57:01 126 126 CLEAN 5.3 2026/01/16 09:57:58 126 126 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:17 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 09:56:27 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:57:01 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 7.706 2.00712 3.06840 18.44 1460.86 1014.330 0.45 0.45 7.837 1.95896 2.98287 17.89 1460.71 1013.888 0.75 0.75 7.980 2.20564 3.34389 20.28 1464.22 1015.743 1.05 1.05 8.376 2.49037 3.73083 22.90 1469.00 1017.749 1.35 1.35 8.594 2.56642 3.81979 23.52 1470.61 1018.209 1.65 1.65 8.888 2.78901 4.11500 25.56 1474.24 1019.764 1.95 1.95 9.142 2.81892 4.12825 25.68 1475.35 1019.823 2.25 2.25 9.410 3.01117 4.37549 27.41 1478.47 1021.136 2.55 2.55 9.596 3.12866 4.52166 28.45 1480.43 1021.917 2.85 2.85 9.662 3.17901 4.58576 28.90 1481.23 1022.263 3.15 3.15 9.720 3.21539 4.63051 29.22 1481.83 1022.504 3.45 3.45 9.852 3.24146 4.65036 29.38 1482.51 1022.605 3.75 3.75 9.974 3.25269 4.65011 29.39 1482.98 1022.597 4.05 4.05 10.074 3.26234 4.65072 29.41 1483.36 1022.594 4.35 4.35 10.183 3.27452 4.65350 29.44 1483.81 1022.603 4.65 4.65 10.247 3.28326 4.65744 29.47 1484.09 1022.621 4.95 4.95 10.302 3.31163 4.69036 29.71 1484.58 1022.798 5.25 5.25 10.349 3.33312 4.71454 29.88 1484.96 1022.928 5.55 5.54 10.404 3.33827 4.71460 29.89 1485.17 1022.926 5.85 5.84 10.455 3.34751 4.72081 29.94 1485.42 1022.957 6.15 6.14 10.505 3.35319 4.72209 29.95 1485.63 1022.961 6.45 6.44 10.548 3.38022 4.75444 30.19 1486.07 1023.137 6.75 6.74 10.578 3.38395 4.75571 30.20 1486.19 1023.142 7.05 7.04 10.604 3.38275 4.75046 30.17 1486.25 1023.113 7.35 7.34 10.613 3.38235 4.74880 30.15 1486.27 1023.104 7.65 7.64 10.607 3.38180 4.74875 30.15 1486.26 1023.106 7.95 7.94 10.605 3.38117 4.74813 30.15 1486.25 1023.104 8.25 8.23 10.604 3.38217 4.74975 30.16 1486.26 1023.114 8.55 8.53 10.608 3.38251 4.74966 30.16 1486.28 1023.115 8.85 8.83 10.614 3.38230 4.74858 30.15 1486.30 1023.109 9.15 9.13 10.614 3.38258 4.74889 30.15 1486.31 1023.112 9.45 9.43 10.617 3.38243 4.74840 30.15 1486.32 1023.111 9.75 9.73 10.620 3.38269 4.74828 30.15 1486.34 1023.111 10.05 10.03 10.626 3.38576 4.75187 30.18 1486.39 1023.132 10.35 10.33 10.629 3.38525 4.75068 30.17 1486.40 1023.126 10.65 10.63 10.633 3.38518 4.75010 30.16 1486.41 1023.124 10.95 10.92 10.635 3.38666 4.75182 30.18 1486.44 1023.134 11.25 11.22 10.641 3.38690 4.75136 30.17 1486.46 1023.133 11.55 11.52 10.648 3.39014 4.75501 30.20 1486.52 1023.153 11.85 11.82 10.665 3.38991 4.75240 30.18 1486.57 1023.139 12.15 12.12 10.667 3.38971 4.75189 30.18 1486.58 1023.137 12.45 12.42 10.673 3.39133 4.75335 30.19 1486.62 1023.146 12.75 12.72 10.688 3.39386 4.75491 30.20 1486.69 1023.155 13.05 13.02 10.697 3.39467 4.75480 30.20 1486.73 1023.155 13.35 13.31 10.706 3.39728 4.75731 30.22 1486.79 1023.169 13.65 13.61 10.716 3.39953 4.75912 30.24 1486.85 1023.179 13.95 13.91 10.733 3.40148 4.75964 30.24 1486.92 1023.182 14.25 14.21 10.744 3.40315 4.76042 30.25 1486.97 1023.187 14.55 14.51 10.765 3.40353 4.75825 30.23 1487.03 1023.174 14.85 14.81 10.777 3.40607 4.76008 30.25 1487.10 1023.185 15.15 15.11 10.784 3.40667 4.76000 30.25 1487.13 1023.185 15.45 15.41 10.798 3.40794 4.75997 30.25 1487.18 1023.185 15.75 15.71 10.821 3.41243 4.76314 30.28 1487.30 1023.202 16.05 16.00 10.871 3.41538 4.76060 30.26 1487.47 1023.185 16.35 16.30 10.940 3.41811 4.75531 30.23 1487.68 1023.151 16.65 16.60 11.028 3.44810 4.78537 30.45 1488.27 1023.310 16.95 16.90 11.151 3.48049 4.81380 30.67 1488.97 1023.456 17.25 17.20 11.225 3.50769 4.84155 30.87 1489.48 1023.603 17.55 17.50 11.290 3.52088 4.85108 30.95 1489.80 1023.651 17.85 17.80 11.353 3.52606 4.84969 30.94 1490.02 1023.639 18.15 18.10 11.386 3.53174 4.85315 30.97 1490.18 1023.656 18.45 18.39 11.404 3.53333 4.85292 30.97 1490.25 1023.654 18.75 18.69 11.425 3.53425 4.85134 30.96 1490.31 1023.645 19.05 18.99 11.435 3.53406 4.84988 30.95 1490.34 1023.637 19.35 19.29 11.432 3.53321 4.84910 30.95 1490.33 1023.634 19.65 19.59 11.424 3.53336 4.85031 30.96 1490.32 1023.643 19.95 19.89 11.416 3.53322 4.85124 30.96 1490.30 1023.650 20.25 20.19 11.405 3.53293 4.85227 30.97 1490.27 1023.658 20.55 20.49 11.385 3.53189 4.85352 30.97 1490.21 1023.668 20.85 20.78 11.362 3.52912 4.85271 30.97 1490.13 1023.667 21.15 21.08 11.344 3.52953 4.85574 30.98 1490.09 1023.687 21.45 21.38 11.330 3.52701 4.85414 30.97 1490.03 1023.680 21.75 21.68 11.305 3.52573 4.85567 30.98 1489.96 1023.692 22.05 21.98 11.263 3.52179 4.85587 30.98 1489.82 1023.699 22.35 22.28 11.230 3.51922 4.85684 30.98 1489.71 1023.708 22.65 22.58 11.206 3.51606 4.85567 30.97 1489.61 1023.705 22.95 22.88 11.203 3.51866 4.85957 31.00 1489.64 1023.728 23.25 23.17 11.195 3.52245 4.86591 31.04 1489.67 1023.765 23.55 23.47 11.189 3.52333 4.86792 31.05 1489.67 1023.778 23.85 23.77 11.185 3.52458 4.87017 31.07 1489.68 1023.792 24.15 24.07 11.167 3.52351 4.87116 31.07 1489.63 1023.800 24.45 24.37 11.148 3.51815 4.86626 31.04 1489.52 1023.776 24.75 24.67 11.137 3.51548 4.86404 31.02 1489.47 1023.766 25.05 24.97 11.117 3.51722 4.86923 31.05 1489.44 1023.798 25.35 25.27 11.099 3.51831 4.87315 31.08 1489.41 1023.822 25.65 25.56 11.064 3.51610 4.87478 31.09 1489.31 1023.836 25.95 25.86 11.033 3.51269 4.87431 31.08 1489.19 1023.837 26.25 26.16 11.017 3.50911 4.87142 31.06 1489.11 1023.824 26.55 26.46 10.991 3.50535 4.86971 31.04 1489.01 1023.818 26.85 26.76 10.966 3.50448 4.87188 31.05 1488.94 1023.833 27.15 27.06 10.943 3.50405 4.87448 31.07 1488.88 1023.851 27.45 27.36 10.925 3.50397 4.87672 31.08 1488.84 1023.866 27.75 27.65 10.923 3.50288 4.87555 31.08 1488.83 1023.861 28.05 27.95 10.934 3.50424 4.87593 31.08 1488.88 1023.863 28.35 28.25 10.943 3.50536 4.87628 31.08 1488.92 1023.866 28.65 28.55 10.950 3.51018 4.88203 31.12 1489.00 1023.898 28.95 28.85 10.958 3.51447 4.88694 31.16 1489.07 1023.926 29.25 29.15 10.965 3.51567 4.88762 31.17 1489.11 1023.930 29.55 29.45 10.972 3.51523 4.88606 31.15 1489.13 1023.922 29.85 29.75 10.963 3.51584 4.88815 31.17 1489.11 1023.936 30.15 30.04 10.959 3.51599 4.88886 31.17 1489.11 1023.941 30.45 30.34 10.958 3.51627 4.88940 31.18 1489.12 1023.945 30.75 30.64 10.957 3.51647 4.88985 31.18 1489.12 1023.949 31.05 30.94 10.955 3.51604 4.88946 31.18 1489.12 1023.949 31.35 31.24 10.952 3.51658 4.89068 31.18 1489.12 1023.957 31.65 31.54 10.951 3.51725 4.89169 31.19 1489.13 1023.964 31.95 31.84 10.951 3.51739 4.89195 31.19 1489.14 1023.966 32.25 32.13 10.945 3.51793 4.89352 31.20 1489.13 1023.977 32.55 32.43 10.948 3.51769 4.89279 31.20 1489.14 1023.974 32.85 32.73 10.951 3.51782 4.89249 31.20 1489.16 1023.973 33.15 33.03 10.955 3.51843 4.89278 31.20 1489.18 1023.976 33.45 33.33 10.959 3.51855 4.89247 31.20 1489.19 1023.975 33.75 33.63 10.959 3.51878 4.89275 31.20 1489.20 1023.978 34.05 33.93 10.951 3.51922 4.89454 31.21 1489.19 1023.990 34.35 34.22 10.953 3.52045 4.89587 31.22 1489.22 1023.998 34.65 34.52 10.962 3.51959 4.89346 31.20 1489.23 1023.985 34.95 34.82 10.966 3.52153 4.89570 31.22 1489.27 1023.999 35.25 35.12 10.972 3.52096 4.89406 31.21 1489.28 1023.990 35.55 35.42 10.965 3.51878 4.89200 31.19 1489.24 1023.981 35.85 35.72 10.930 3.51870 4.89662 31.22 1489.16 1024.010 36.15 36.02 10.907 3.51890 4.90004 31.24 1489.11 1024.032 36.45 36.32 10.898 3.52016 4.90307 31.26 1489.11 1024.051 36.75 36.61 10.894 3.52009 4.90350 31.27 1489.10 1024.055 37.05 36.91 10.887 3.51853 4.90219 31.26 1489.07 1024.050 37.35 37.21 10.875 3.51885 4.90432 31.27 1489.05 1024.064 37.75 37.61 10.871 3.51837 4.90422 31.27 1489.04 1024.065