*2026/01/16 09:57:55.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 00:36:49.000 END TIME : UTC 2024/10/15 00:37:01.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 61 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.01 2 Depth metres 0.15 17.97 3 Temperature 'deg C (ITS90)' 14.123 14.568 4 Conductivity S/m 3.35184 3.63259 5 Conductance:Specific S/m 4.23628 4.64152 6 Salinity PSS-78 26.89 29.72 7 Speed:Sound m/s 1495.84 1498 8 Density kg/m^3 1019.824 1022.163 $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 : 258 LATITUDE : 49 7.39860 N ! (deg min) LONGITUDE : 125 48.57640 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_003649 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 61 61 MERGEHDR 1.3 2026/01/16 09:54:07 61 61 HDREDIT2 3.2 2026/01/16 09:55:12 ? ? REMOVECH 8.2 2026/01/16 09:56:23 61 61 CALIB 12.1 2026/01/16 09:56:56 61 61 CLEAN 5.3 2026/01/16 09:57:55 61 61 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:12 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 14.568 3.37881 4.26959 27.12 1496.12 1019.996 0.45 0.45 14.568 3.37263 4.26185 27.07 1496.06 1019.956 0.75 0.75 14.563 3.36896 4.25773 27.04 1496.01 1019.936 1.05 1.05 14.564 3.36047 4.24690 26.96 1495.93 1019.878 1.35 1.35 14.560 3.35497 4.24031 26.91 1495.87 1019.844 1.65 1.65 14.561 3.35184 4.23628 26.89 1495.84 1019.824 1.95 1.95 14.560 3.35606 4.24175 26.92 1495.89 1019.855 2.25 2.25 14.557 3.37417 4.26497 27.09 1496.07 1019.982 2.55 2.55 14.557 3.38750 4.28175 27.21 1496.22 1020.074 2.85 2.85 14.551 3.40295 4.30192 27.35 1496.37 1020.185 3.15 3.15 14.512 3.42617 4.33561 27.58 1496.52 1020.375 3.45 3.45 14.453 3.43633 4.35496 27.71 1496.48 1020.490 3.75 3.75 14.395 3.45562 4.38587 27.93 1496.55 1020.668 4.05 4.05 14.360 3.46918 4.40704 28.07 1496.61 1020.790 4.35 4.35 14.339 3.47596 4.41798 28.15 1496.63 1020.854 4.65 4.65 14.326 3.48522 4.43117 28.24 1496.70 1020.929 4.95 4.95 14.329 3.49061 4.43770 28.29 1496.77 1020.965 5.25 5.25 14.323 3.49579 4.44496 28.34 1496.82 1021.007 5.55 5.54 14.329 3.49827 4.44748 28.36 1496.86 1021.021 5.85 5.84 14.334 3.50259 4.45233 28.39 1496.93 1021.048 6.15 6.14 14.336 3.51157 4.46361 28.47 1497.03 1021.110 6.45 6.44 14.319 3.51595 4.47106 28.52 1497.04 1021.155 6.75 6.74 14.287 3.53649 4.50084 28.73 1497.18 1021.323 7.05 7.04 14.277 3.54461 4.51236 28.81 1497.25 1021.389 7.35 7.34 14.273 3.54777 4.51679 28.84 1497.28 1021.414 7.65 7.64 14.269 3.54998 4.52009 28.87 1497.29 1021.434 7.95 7.94 14.263 3.55222 4.52362 28.89 1497.31 1021.456 8.25 8.24 14.257 3.55425 4.52693 28.91 1497.32 1021.476 8.55 8.54 14.253 3.55449 4.52763 28.92 1497.32 1021.482 8.85 8.84 14.252 3.55615 4.52995 28.94 1497.34 1021.496 9.15 9.14 14.247 3.56172 4.53755 28.99 1497.39 1021.539 9.45 9.44 14.244 3.56866 4.54677 29.05 1497.46 1021.591 9.75 9.74 14.243 3.56855 4.54675 29.05 1497.46 1021.593 10.05 10.04 14.236 3.56732 4.54595 29.05 1497.44 1021.591 10.35 10.34 14.231 3.56799 4.54743 29.06 1497.44 1021.601 10.65 10.63 14.225 3.57061 4.55141 29.08 1497.46 1021.625 10.95 10.93 14.218 3.57178 4.55370 29.10 1497.46 1021.639 11.25 11.23 14.210 3.57403 4.55758 29.13 1497.46 1021.663 11.55 11.53 14.202 3.57565 4.56050 29.15 1497.47 1021.681 11.85 11.83 14.193 3.58138 4.56886 29.21 1497.51 1021.730 12.15 12.13 14.187 3.59104 4.58193 29.30 1497.60 1021.803 12.45 12.43 14.180 3.59297 4.58520 29.32 1497.61 1021.823 12.75 12.73 14.172 3.59763 4.59205 29.37 1497.65 1021.863 13.05 13.03 14.165 3.60401 4.60111 29.43 1497.70 1021.915 13.35 13.33 14.157 3.60966 4.60924 29.49 1497.75 1021.962 13.65 13.63 14.155 3.61488 4.61607 29.54 1497.80 1022.001 13.95 13.93 14.157 3.61880 4.62089 29.57 1497.85 1022.028 14.25 14.23 14.156 3.62326 4.62671 29.61 1497.90 1022.062 14.55 14.53 14.156 3.62389 4.62752 29.62 1497.92 1022.067 14.85 14.82 14.155 3.62474 4.62873 29.63 1497.93 1022.076 15.15 15.12 14.152 3.62582 4.63049 29.64 1497.94 1022.087 15.45 15.42 14.149 3.62726 4.63262 29.65 1497.95 1022.100 15.75 15.72 14.146 3.62906 4.63527 29.67 1497.97 1022.116 16.05 16.02 14.145 3.63027 4.63701 29.69 1497.98 1022.127 16.35 16.32 14.141 3.63145 4.63888 29.70 1497.99 1022.139 16.65 16.62 14.136 3.63160 4.63970 29.70 1497.98 1022.146 16.95 16.92 14.136 3.63185 4.64009 29.71 1497.99 1022.149 17.25 17.22 14.134 3.63259 4.64126 29.71 1498.00 1022.157 17.55 17.52 14.132 3.63217 4.64091 29.71 1498.00 1022.157 17.85 17.82 14.127 3.63217 4.64152 29.72 1497.99 1022.162 18.01 17.97 14.123 3.63184 4.64152 29.71 1497.98 1022.163