*2026/01/16 09:57:47.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 17:07:45.000 END TIME : UTC 2024/02/15 17:07:57.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 62 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.36 2 Depth metres 0.15 18.32 3 Temperature 'deg C (ITS90)' 8.653 10.043 4 Conductivity S/m 2.87725 3.25432 5 Conductance:Specific S/m 4.27383 4.64332 6 Salinity PSS-78 26.63 29.34 7 Speed:Sound m/s 1474.64 1483.41 8 Density kg/m^3 1020.619 1022.617 $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 : 48 LATITUDE : 48 52.52240 N ! (deg min) LONGITUDE : 125 17.50410 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_170745 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 62 62 MERGEHDR 1.3 2026/01/16 09:53:46 62 62 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 62 62 CALIB 12.1 2026/01/16 09:56:46 62 62 CLEAN 5.3 2026/01/16 09:57:47 62 62 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 8.666 2.87762 4.27383 26.63 1474.67 1020.619 0.45 0.45 8.653 2.87725 4.27491 26.63 1474.64 1020.626 0.75 0.75 8.654 2.87808 4.27600 26.64 1474.65 1020.633 1.05 1.05 8.658 2.87750 4.27456 26.63 1474.67 1020.627 1.35 1.35 8.665 2.87824 4.27481 26.63 1474.70 1020.629 1.65 1.65 8.665 2.87940 4.27654 26.65 1474.72 1020.640 1.95 1.95 8.660 2.88036 4.27861 26.66 1474.72 1020.652 2.25 2.25 8.666 2.88108 4.27896 26.66 1474.75 1020.655 2.55 2.55 8.670 2.88143 4.27898 26.66 1474.77 1020.656 2.85 2.85 8.670 2.88182 4.27946 26.67 1474.78 1020.660 3.15 3.15 8.673 2.88143 4.27853 26.66 1474.79 1020.656 3.45 3.45 8.672 2.88169 4.27901 26.66 1474.80 1020.660 3.75 3.75 8.672 2.88160 4.27887 26.66 1474.80 1020.661 4.05 4.05 8.674 2.88154 4.27857 26.66 1474.81 1020.660 4.35 4.34 8.675 2.88178 4.27880 26.66 1474.82 1020.663 4.65 4.64 8.689 2.88156 4.27676 26.65 1474.86 1020.653 4.95 4.94 8.713 2.88951 4.28544 26.71 1475.03 1020.699 5.25 5.24 8.725 2.89508 4.29225 26.76 1475.14 1020.737 5.55 5.54 8.796 2.92295 4.32442 26.99 1475.70 1020.908 5.85 5.84 8.902 2.95549 4.35886 27.24 1476.41 1021.089 6.15 6.14 8.985 2.97652 4.37916 27.39 1476.91 1021.196 6.45 6.44 9.038 2.98080 4.37867 27.39 1477.12 1021.192 6.75 6.74 9.077 2.98437 4.37882 27.40 1477.28 1021.192 7.05 7.04 9.113 3.00353 4.40233 27.56 1477.62 1021.318 7.35 7.34 9.165 3.01722 4.41569 27.66 1477.94 1021.389 7.65 7.64 9.198 3.01881 4.41367 27.65 1478.06 1021.378 7.95 7.94 9.222 3.02606 4.42125 27.71 1478.22 1021.418 8.25 8.24 9.253 3.02859 4.42088 27.71 1478.34 1021.416 8.55 8.54 9.336 3.04032 4.42736 27.76 1478.72 1021.448 8.85 8.84 9.419 3.06356 4.45042 27.93 1479.24 1021.569 9.15 9.14 9.490 3.10836 4.50621 28.33 1479.99 1021.868 9.45 9.44 9.571 3.12247 4.51605 28.41 1480.39 1021.918 9.75 9.73 9.627 3.13084 4.52080 28.44 1480.65 1021.941 10.05 10.03 9.654 3.13849 4.52834 28.50 1480.83 1021.982 10.35 10.33 9.679 3.13992 4.52710 28.49 1480.92 1021.975 10.65 10.63 9.689 3.14077 4.52699 28.49 1480.96 1021.975 10.95 10.93 9.696 3.14011 4.52516 28.48 1480.97 1021.966 11.25 11.23 9.693 3.14106 4.52692 28.49 1480.98 1021.977 11.55 11.53 9.696 3.14247 4.52855 28.51 1481.01 1021.987 11.85 11.83 9.723 3.15918 4.54905 28.65 1481.30 1022.098 12.15 12.13 9.767 3.17442 4.56523 28.77 1481.61 1022.184 12.45 12.43 9.796 3.17979 4.56916 28.80 1481.75 1022.205 12.75 12.73 9.804 3.18105 4.56991 28.81 1481.80 1022.210 13.05 13.03 9.813 3.18100 4.56872 28.80 1481.82 1022.204 13.35 13.33 9.820 3.18145 4.56838 28.80 1481.85 1022.203 13.65 13.62 9.830 3.18364 4.57024 28.81 1481.91 1022.214 13.95 13.92 9.847 3.18491 4.56979 28.81 1481.98 1022.211 14.25 14.22 9.863 3.19078 4.57618 28.86 1482.10 1022.246 14.55 14.52 9.897 3.19676 4.58030 28.89 1482.26 1022.268 14.85 14.82 9.922 3.20421 4.58762 28.94 1482.43 1022.307 15.15 15.12 9.929 3.20592 4.58927 28.95 1482.47 1022.317 15.45 15.42 9.932 3.20869 4.59274 28.98 1482.52 1022.337 15.75 15.72 9.946 3.21222 4.59597 29.00 1482.60 1022.355 16.05 16.02 9.970 3.21634 4.59869 29.02 1482.72 1022.369 16.35 16.32 9.970 3.21745 4.60033 29.04 1482.74 1022.379 16.65 16.62 9.962 3.22008 4.60505 29.07 1482.76 1022.407 16.95 16.92 9.970 3.22465 4.61056 29.11 1482.84 1022.438 17.25 17.21 9.983 3.22459 4.60884 29.10 1482.88 1022.429 17.55 17.51 9.996 3.22692 4.61043 29.11 1482.94 1022.438 17.85 17.81 10.004 3.22858 4.61168 29.12 1482.99 1022.445 18.15 18.11 10.018 3.24088 4.62742 29.23 1483.18 1022.531 18.36 18.32 10.043 3.25432 4.64332 29.34 1483.41 1022.617