*2026/01/16 09:57:48.08 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 23:26:47.000 END TIME : UTC 2024/02/15 23:27:07.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 105 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.47 2 Depth metres 0.15 31.36 3 Temperature 'deg C (ITS90)' 8.963 9.977 4 Conductivity S/m 2.89765 3.34444 5 Conductance:Specific S/m 4.26594 4.78527 6 Salinity PSS-78 26.61 30.32 7 Speed:Sound m/s 1475.78 1484.46 8 Density kg/m^3 1020.562 1023.455 $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 : 56 LATITUDE : 48 52.86470 N ! (deg min) LONGITUDE : 125 4.68370 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_232647 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 105 105 MERGEHDR 1.3 2026/01/16 09:53:47 105 105 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 105 105 CALIB 12.1 2026/01/16 09:56:46 105 105 CLEAN 5.3 2026/01/16 09:57:48 105 105 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 8.963 2.89765 4.26594 26.61 1475.78 1020.562 0.45 0.45 8.982 2.90882 4.27998 26.71 1475.97 1020.638 0.75 0.75 9.010 2.93967 4.32172 27.00 1476.44 1020.862 1.05 1.05 9.091 2.99808 4.39714 27.53 1477.40 1021.266 1.35 1.35 9.291 3.09131 4.50748 28.32 1479.11 1021.853 1.65 1.65 9.335 3.17733 4.62696 29.15 1480.30 1022.500 1.95 1.95 9.611 3.23397 4.67189 29.50 1481.75 1022.731 2.25 2.25 9.735 3.25623 4.68720 29.62 1482.36 1022.808 2.55 2.54 9.800 3.27365 4.70357 29.74 1482.75 1022.895 2.85 2.84 9.831 3.28810 4.72002 29.86 1483.02 1022.984 3.15 3.14 9.850 3.28958 4.71958 29.86 1483.09 1022.981 3.45 3.44 9.859 3.28957 4.71837 29.85 1483.12 1022.976 3.75 3.74 9.866 3.29021 4.71840 29.85 1483.15 1022.977 4.05 4.04 9.867 3.28912 4.71667 29.84 1483.14 1022.968 4.35 4.34 9.856 3.28938 4.71857 29.85 1483.12 1022.981 4.65 4.64 9.852 3.29001 4.71993 29.86 1483.12 1022.990 4.95 4.94 9.853 3.29139 4.72176 29.88 1483.15 1023.001 5.25 5.23 9.860 3.29560 4.72688 29.91 1483.22 1023.030 5.55 5.53 9.874 3.29664 4.72656 29.91 1483.28 1023.028 5.85 5.83 9.882 3.29722 4.72621 29.91 1483.31 1023.027 6.15 6.13 9.887 3.29792 4.72655 29.91 1483.34 1023.030 6.45 6.43 9.890 3.29813 4.72644 29.91 1483.35 1023.030 6.75 6.73 9.897 3.29932 4.72726 29.92 1483.39 1023.036 7.05 7.03 9.901 3.30000 4.72762 29.92 1483.41 1023.039 7.35 7.33 9.907 3.30031 4.72734 29.92 1483.44 1023.038 7.65 7.63 9.910 3.30091 4.72778 29.92 1483.46 1023.042 7.95 7.93 9.915 3.30273 4.72969 29.94 1483.50 1023.053 8.25 8.22 9.919 3.30304 4.72959 29.94 1483.52 1023.053 8.55 8.52 9.920 3.30426 4.73112 29.95 1483.54 1023.063 8.85 8.82 9.921 3.30406 4.73083 29.95 1483.54 1023.063 9.15 9.12 9.918 3.30434 4.73155 29.95 1483.54 1023.068 9.45 9.42 9.918 3.30407 4.73124 29.95 1483.54 1023.068 9.75 9.72 9.918 3.30520 4.73278 29.96 1483.56 1023.077 10.05 10.02 9.917 3.30426 4.73154 29.95 1483.56 1023.072 10.35 10.32 9.917 3.30507 4.73281 29.96 1483.57 1023.080 10.65 10.62 9.914 3.30445 4.73226 29.96 1483.56 1023.078 10.95 10.91 9.913 3.30518 4.73343 29.96 1483.57 1023.086 11.25 11.21 9.912 3.30543 4.73395 29.97 1483.58 1023.090 11.55 11.51 9.912 3.30582 4.73453 29.97 1483.58 1023.095 11.85 11.81 9.912 3.30647 4.73541 29.98 1483.60 1023.101 12.15 12.11 9.913 3.30657 4.73541 29.98 1483.61 1023.102 12.45 12.41 9.916 3.30794 4.73699 29.99 1483.64 1023.112 12.75 12.71 9.914 3.30929 4.73915 30.00 1483.65 1023.125 13.05 13.01 9.917 3.30900 4.73841 30.00 1483.66 1023.122 13.35 13.31 9.919 3.30955 4.73894 30.00 1483.68 1023.126 13.65 13.60 9.918 3.30962 4.73908 30.00 1483.68 1023.128 13.95 13.90 9.920 3.30954 4.73875 30.00 1483.69 1023.128 14.25 14.20 9.921 3.30989 4.73907 30.00 1483.70 1023.130 14.55 14.50 9.924 3.31063 4.73975 30.01 1483.72 1023.135 14.85 14.80 9.931 3.31270 4.74181 30.02 1483.77 1023.147 15.15 15.10 9.940 3.31445 4.74310 30.03 1483.82 1023.155 15.45 15.40 9.942 3.31806 4.74791 30.07 1483.88 1023.182 15.75 15.70 9.951 3.31837 4.74720 30.06 1483.91 1023.179 16.05 16.00 9.958 3.31878 4.74685 30.06 1483.93 1023.178 16.35 16.29 9.959 3.31867 4.74648 30.06 1483.94 1023.177 16.65 16.59 9.961 3.31869 4.74626 30.06 1483.95 1023.177 16.95 16.89 9.963 3.31889 4.74630 30.06 1483.96 1023.179 17.25 17.19 9.965 3.31912 4.74640 30.06 1483.98 1023.180 17.55 17.49 9.964 3.32016 4.74793 30.07 1483.99 1023.190 17.85 17.79 9.967 3.32003 4.74742 30.06 1484.00 1023.188 18.15 18.09 9.968 3.32079 4.74833 30.07 1484.02 1023.195 18.45 18.39 9.967 3.32081 4.74847 30.07 1484.02 1023.197 18.75 18.69 9.966 3.32135 4.74944 30.08 1484.03 1023.203 19.05 18.98 9.961 3.32097 4.74956 30.08 1484.02 1023.206 19.35 19.28 9.956 3.32020 4.74911 30.07 1484.00 1023.205 19.65 19.58 9.954 3.31969 4.74868 30.07 1483.99 1023.204 19.95 19.88 9.951 3.32009 4.74959 30.08 1484.00 1023.210 20.25 20.18 9.950 3.32009 4.74970 30.08 1484.00 1023.212 20.55 20.48 9.949 3.32019 4.75002 30.08 1484.00 1023.215 20.85 20.78 9.949 3.32020 4.75005 30.08 1484.01 1023.217 21.15 21.08 9.949 3.32064 4.75070 30.08 1484.02 1023.221 21.45 21.38 9.949 3.32135 4.75177 30.09 1484.03 1023.229 21.75 21.67 9.949 3.32139 4.75182 30.09 1484.03 1023.230 22.05 21.97 9.950 3.32195 4.75249 30.10 1484.05 1023.235 22.35 22.27 9.950 3.32316 4.75419 30.11 1484.07 1023.246 22.65 22.57 9.950 3.32459 4.75619 30.12 1484.09 1023.258 22.95 22.87 9.951 3.32572 4.75763 30.13 1484.11 1023.267 23.25 23.17 9.951 3.32592 4.75795 30.13 1484.12 1023.270 23.55 23.47 9.952 3.32634 4.75847 30.14 1484.13 1023.274 23.85 23.77 9.952 3.32658 4.75877 30.14 1484.14 1023.277 24.15 24.07 9.953 3.32660 4.75873 30.14 1484.15 1023.278 24.45 24.36 9.954 3.32692 4.75893 30.14 1484.16 1023.280 24.75 24.66 9.956 3.32764 4.75969 30.15 1484.18 1023.285 25.05 24.96 9.967 3.32941 4.76083 30.16 1484.23 1023.292 25.35 25.26 9.971 3.32994 4.76097 30.16 1484.25 1023.294 25.65 25.56 9.971 3.33005 4.76115 30.16 1484.26 1023.296 25.95 25.86 9.972 3.33033 4.76145 30.16 1484.27 1023.299 26.25 26.16 9.973 3.33045 4.76140 30.16 1484.28 1023.300 26.55 26.46 9.975 3.33036 4.76106 30.16 1484.29 1023.299 26.85 26.76 9.977 3.33098 4.76170 30.16 1484.31 1023.304 27.15 27.05 9.975 3.33069 4.76148 30.16 1484.30 1023.304 27.45 27.35 9.975 3.33116 4.76218 30.17 1484.31 1023.309 27.75 27.65 9.974 3.33102 4.76219 30.17 1484.31 1023.311 28.05 27.95 9.973 3.33139 4.76286 30.17 1484.32 1023.316 28.35 28.25 9.972 3.33173 4.76344 30.17 1484.33 1023.320 28.65 28.55 9.971 3.33198 4.76388 30.18 1484.33 1023.324 28.95 28.85 9.970 3.33343 4.76613 30.19 1484.35 1023.338 29.25 29.15 9.968 3.33851 4.77367 30.24 1484.41 1023.380 29.55 29.45 9.960 3.34200 4.77979 30.29 1484.44 1023.416 29.85 29.74 9.948 3.34294 4.78268 30.31 1484.42 1023.433 30.15 30.04 9.947 3.34311 4.78308 30.31 1484.43 1023.437 30.45 30.34 9.947 3.34288 4.78281 30.31 1484.43 1023.437 30.75 30.64 9.946 3.34300 4.78311 30.31 1484.43 1023.440 31.05 30.94 9.945 3.34366 4.78414 30.31 1484.44 1023.447 31.47 31.36 9.945 3.34444 4.78527 30.32 1484.46 1023.455