*2026/01/16 09:57:49.61 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/25 16:09:15.000 END TIME : UTC 2024/04/25 16:09:30.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 78 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.25 2 Depth metres 0.15 23.25 3 Temperature 'deg C (ITS90)' 10.543 11.89 4 Conductivity S/m 2.39017 2.98929 5 Conductance:Specific S/m 3.23957 4.20401 6 Salinity PSS-78 19.87 26.34 7 Speed:Sound m/s 1478.37 1482.1 8 Density kg/m^3 1014.892 1020.222 $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 : 90 LATITUDE : 49 7.03990 N ! (deg min) LONGITUDE : 125 47.90630 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240425_160915 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 78 78 MERGEHDR 1.3 2026/01/16 09:53:50 78 78 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 78 78 CALIB 12.1 2026/01/16 09:56:48 78 78 CLEAN 5.3 2026/01/16 09:57:49 78 78 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.890 2.39017 3.23957 19.87 1478.43 1014.892 0.45 0.45 11.871 2.39018 3.24131 19.88 1478.37 1014.905 0.75 0.75 11.845 2.39664 3.25235 19.96 1478.37 1014.966 1.05 1.05 11.816 2.41603 3.28125 20.15 1478.50 1015.121 1.35 1.36 11.799 2.41197 3.27723 20.12 1478.41 1015.103 1.65 1.66 11.770 2.42436 3.29668 20.25 1478.47 1015.209 1.95 1.96 11.620 2.46103 3.36019 20.67 1478.43 1015.558 2.25 2.26 11.429 2.69833 3.70358 22.99 1480.51 1017.383 2.55 2.56 11.378 2.75480 3.78635 23.55 1481.01 1017.827 2.85 2.86 11.333 2.80688 3.86269 24.07 1481.47 1018.238 3.15 3.16 11.238 2.80948 3.87639 24.15 1481.24 1018.322 3.45 3.46 11.157 2.81616 3.89435 24.27 1481.09 1018.426 3.75 3.76 11.082 2.84909 3.94810 24.63 1481.26 1018.721 4.05 4.06 11.041 2.88558 4.00321 25.01 1481.57 1019.020 4.35 4.36 11.022 2.89931 4.02435 25.15 1481.68 1019.136 4.65 4.66 11.020 2.90029 4.02591 25.16 1481.69 1019.146 4.95 4.96 11.014 2.90408 4.03182 25.20 1481.72 1019.180 5.25 5.26 11.007 2.91019 4.04118 25.27 1481.77 1019.232 5.55 5.56 11.002 2.91164 4.04369 25.28 1481.78 1019.247 5.85 5.86 11.000 2.91264 4.04532 25.29 1481.79 1019.257 6.15 6.16 10.998 2.91347 4.04674 25.30 1481.80 1019.266 6.45 6.46 10.995 2.91504 4.04920 25.32 1481.82 1019.281 6.75 6.76 10.992 2.91884 4.05488 25.36 1481.85 1019.313 7.05 7.06 10.985 2.92332 4.06182 25.41 1481.89 1019.352 7.35 7.36 10.979 2.92743 4.06825 25.45 1481.93 1019.388 7.65 7.66 10.973 2.93044 4.07315 25.48 1481.95 1019.416 7.95 7.96 10.969 2.93326 4.07751 25.51 1481.97 1019.441 8.25 8.26 10.965 2.93656 4.08257 25.55 1482.01 1019.470 8.55 8.56 10.963 2.93752 4.08409 25.56 1482.02 1019.479 8.85 8.86 10.961 2.93710 4.08368 25.55 1482.01 1019.479 9.15 9.16 10.958 2.93853 4.08600 25.57 1482.03 1019.493 9.45 9.46 10.956 2.94106 4.08976 25.59 1482.05 1019.514 9.75 9.76 10.953 2.94315 4.09301 25.62 1482.07 1019.533 10.05 10.06 10.951 2.94285 4.09291 25.62 1482.07 1019.534 10.35 10.36 10.949 2.94337 4.09386 25.62 1482.07 1019.541 10.65 10.66 10.943 2.94482 4.09654 25.64 1482.08 1019.557 10.95 10.96 10.932 2.94656 4.10019 25.66 1482.07 1019.579 11.25 11.26 10.923 2.94792 4.10311 25.68 1482.07 1019.597 11.55 11.56 10.907 2.95059 4.10863 25.72 1482.06 1019.629 11.85 11.86 10.895 2.95430 4.11514 25.76 1482.08 1019.666 12.15 12.16 10.861 2.95963 4.12657 25.84 1482.05 1019.732 12.45 12.46 10.829 2.96673 4.14016 25.93 1482.05 1019.809 12.75 12.76 10.805 2.97295 4.15158 26.01 1482.06 1019.873 13.05 13.06 10.796 2.97527 4.15582 26.03 1482.07 1019.898 13.35 13.36 10.786 2.97953 4.16294 26.08 1482.09 1019.939 13.65 13.66 10.775 2.98092 4.16626 26.10 1482.08 1019.959 13.95 13.96 10.771 2.98138 4.16728 26.11 1482.08 1019.966 14.25 14.26 10.769 2.98344 4.17046 26.13 1482.10 1019.984 14.55 14.56 10.756 2.98568 4.17502 26.16 1482.10 1020.011 14.85 14.86 10.744 2.98677 4.17803 26.18 1482.08 1020.030 15.15 15.16 10.738 2.98732 4.17942 26.19 1482.08 1020.039 15.45 15.46 10.717 2.98646 4.18078 26.20 1482.01 1020.050 15.75 15.76 10.701 2.98567 4.18149 26.20 1481.97 1020.056 16.05 16.06 10.687 2.98542 4.18273 26.21 1481.93 1020.065 16.35 16.36 10.678 2.98516 4.18349 26.21 1481.91 1020.071 16.65 16.66 10.673 2.98492 4.18372 26.21 1481.89 1020.074 16.95 16.96 10.673 2.98479 4.18353 26.21 1481.90 1020.075 17.25 17.26 10.675 2.98555 4.18443 26.22 1481.92 1020.081 17.55 17.56 10.664 2.98589 4.18610 26.23 1481.90 1020.092 17.85 17.86 10.651 2.98589 4.18769 26.24 1481.86 1020.103 18.15 18.16 10.625 2.98396 4.18802 26.24 1481.77 1020.108 18.45 18.46 10.594 2.98273 4.18996 26.25 1481.68 1020.122 18.75 18.76 10.580 2.98305 4.19198 26.26 1481.65 1020.136 19.05 19.06 10.564 2.98269 4.19338 26.27 1481.61 1020.146 19.35 19.36 10.550 2.98254 4.19486 26.28 1481.57 1020.156 19.65 19.66 10.543 2.98267 4.19587 26.29 1481.56 1020.163 19.95 19.96 10.543 2.98348 4.19704 26.29 1481.57 1020.171 20.25 20.26 10.545 2.98508 4.19899 26.31 1481.60 1020.183 20.55 20.56 10.548 2.98557 4.19937 26.31 1481.62 1020.186 20.85 20.86 10.549 2.98737 4.20176 26.33 1481.65 1020.200 21.15 21.16 10.551 2.98750 4.20167 26.33 1481.66 1020.200 21.45 21.45 10.554 2.98707 4.20080 26.32 1481.67 1020.197 21.75 21.75 10.554 2.98734 4.20114 26.32 1481.68 1020.200 22.05 22.05 10.554 2.98731 4.20105 26.32 1481.68 1020.201 22.35 22.35 10.553 2.98762 4.20162 26.33 1481.69 1020.205 22.65 22.65 10.553 2.98866 4.20312 26.34 1481.70 1020.214 22.95 22.95 10.551 2.98894 4.20369 26.34 1481.71 1020.219 23.25 23.25 10.553 2.98929 4.20401 26.34 1481.72 1020.222