*2026/01/16 09:57:57.08 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/25 23:09:32.000 END TIME : UTC 2024/11/25 23:09:42.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 55 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 16.35 2 Depth metres 0.15 16.33 3 Temperature 'deg C (ITS90)' 8.075 10.852 4 Conductivity S/m 0.73039 3.41374 5 Conductance:Specific S/m 1.10415 4.76098 6 Salinity PSS-78 6.11 30.26 7 Speed:Sound m/s 1447.13 1487.4 8 Density kg/m^3 1004.657 1023.19 $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 : 302 LATITUDE : 48 58.94980 N ! (deg min) LONGITUDE : 124 55.06450 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241125_230932 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 55 55 MERGEHDR 1.3 2026/01/16 09:54:11 55 55 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 55 55 CALIB 12.1 2026/01/16 09:56:58 55 55 CLEAN 5.3 2026/01/16 09:57:57 55 55 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:15 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 09:56:25 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 8.075 0.73039 1.10415 6.11 1447.13 1004.657 0.45 0.46 8.170 0.80530 1.21389 6.77 1448.34 1005.165 0.75 0.76 8.307 0.91166 1.36858 7.71 1450.06 1005.888 1.05 1.06 8.414 1.16748 1.74700 10.03 1453.36 1007.697 1.35 1.37 8.666 1.52119 2.25927 13.27 1458.34 1010.198 1.65 1.67 8.940 1.99109 2.93326 17.65 1464.77 1013.581 1.95 1.97 9.438 2.70216 3.92326 24.31 1474.79 1018.713 2.25 2.27 9.948 2.95017 4.22080 26.40 1479.24 1020.269 2.55 2.57 10.415 3.13694 4.42884 27.89 1482.75 1021.357 2.85 2.87 10.475 3.18932 4.49519 28.36 1483.54 1021.713 3.15 3.17 10.511 3.21895 4.53229 28.63 1484.00 1021.913 3.45 3.47 10.537 3.24151 4.56073 28.83 1484.34 1022.067 3.75 3.77 10.547 3.25767 4.58215 28.98 1484.56 1022.184 4.05 4.07 10.569 3.26101 4.58410 28.99 1484.66 1022.194 4.35 4.37 10.579 3.26392 4.58688 29.01 1484.73 1022.210 4.65 4.66 10.586 3.26720 4.59064 29.04 1484.79 1022.231 4.95 4.96 10.590 3.26994 4.59388 29.07 1484.84 1022.250 5.25 5.26 10.595 3.27085 4.59453 29.07 1484.87 1022.254 5.55 5.56 10.597 3.27179 4.59564 29.08 1484.89 1022.261 5.85 5.86 10.598 3.27631 4.60182 29.12 1484.95 1022.296 6.15 6.16 10.613 3.28488 4.61189 29.19 1485.10 1022.351 6.45 6.46 10.644 3.32342 4.66195 29.55 1485.64 1022.623 6.75 6.76 10.672 3.33714 4.67752 29.66 1485.88 1022.707 7.05 7.06 10.689 3.34411 4.68513 29.72 1486.01 1022.749 7.35 7.36 10.701 3.34726 4.68790 29.74 1486.09 1022.764 7.65 7.66 10.712 3.35094 4.69162 29.76 1486.16 1022.785 7.95 7.95 10.722 3.35499 4.69602 29.79 1486.24 1022.809 8.25 8.25 10.734 3.35898 4.69999 29.82 1486.32 1022.831 8.55 8.55 10.744 3.36430 4.70607 29.87 1486.42 1022.865 8.85 8.85 10.751 3.36786 4.71020 29.90 1486.48 1022.888 9.15 9.15 10.760 3.37048 4.71265 29.92 1486.54 1022.902 9.45 9.45 10.768 3.37518 4.71818 29.96 1486.62 1022.933 9.75 9.75 10.778 3.37764 4.72027 29.97 1486.68 1022.945 10.05 10.05 10.786 3.38248 4.72593 30.01 1486.77 1022.976 10.35 10.35 10.794 3.38708 4.73133 30.05 1486.85 1023.007 10.65 10.65 10.802 3.38909 4.73306 30.06 1486.90 1023.017 10.95 10.94 10.808 3.39154 4.73570 30.08 1486.95 1023.032 11.25 11.24 10.811 3.39300 4.73733 30.09 1486.98 1023.042 11.55 11.54 10.815 3.39529 4.74008 30.11 1487.02 1023.058 11.85 11.84 10.818 3.39655 4.74137 30.12 1487.04 1023.066 12.15 12.14 10.821 3.39731 4.74200 30.13 1487.07 1023.070 12.45 12.44 10.823 3.39759 4.74219 30.13 1487.08 1023.073 12.75 12.74 10.825 3.39801 4.74248 30.13 1487.09 1023.075 13.05 13.04 10.828 3.39839 4.74266 30.13 1487.11 1023.077 13.35 13.34 10.828 3.39932 4.74396 30.14 1487.13 1023.086 13.65 13.64 10.831 3.39995 4.74440 30.15 1487.15 1023.089 13.95 13.93 10.834 3.40104 4.74553 30.15 1487.17 1023.096 14.25 14.23 10.837 3.40407 4.74941 30.18 1487.22 1023.119 14.55 14.53 10.839 3.40627 4.75220 30.20 1487.26 1023.135 14.85 14.83 10.842 3.40752 4.75353 30.21 1487.28 1023.143 15.15 15.13 10.843 3.40978 4.75662 30.23 1487.32 1023.161 15.45 15.43 10.844 3.41136 4.75856 30.25 1487.35 1023.173 15.75 15.73 10.849 3.41202 4.75884 30.25 1487.37 1023.176 16.05 16.03 10.852 3.41229 4.75883 30.25 1487.39 1023.177 16.35 16.33 10.851 3.41374 4.76098 30.26 1487.40 1023.190