*2026/01/16 09:57:51.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 01:37:59.000 END TIME : UTC 2024/06/11 01:38:14.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 80 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24 2 Depth metres 0.15 23.88 3 Temperature 'deg C (ITS90)' 9.443 13.431 4 Conductivity S/m 3.47758 3.61845 5 Conductance:Specific S/m 4.70773 5.0517 6 Salinity PSS-78 30.14 32.14 7 Speed:Sound m/s 1484.68 1495.89 8 Density kg/m^3 1022.548 1024.916 $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 : 139 LATITUDE : 48 48.72050 N ! (deg min) LONGITUDE : 125 11.35290 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_013759 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 80 80 MERGEHDR 1.3 2026/01/16 09:53:53 80 80 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 80 80 CALIB 12.1 2026/01/16 09:56:51 80 80 CLEAN 5.3 2026/01/16 09:57:51 80 80 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 13.431 3.61845 4.70773 30.14 1495.89 1022.548 0.45 0.45 13.374 3.61726 4.71319 30.17 1495.74 1022.587 0.75 0.75 13.283 3.61067 4.71576 30.18 1495.46 1022.614 1.05 1.05 13.062 3.59221 4.71888 30.19 1494.72 1022.661 1.35 1.35 12.851 3.58103 4.73040 30.25 1494.09 1022.751 1.65 1.64 12.684 3.57061 4.73758 30.29 1493.57 1022.812 1.95 1.94 12.366 3.56245 4.76701 30.47 1492.70 1023.012 2.25 2.24 12.098 3.54686 4.78041 30.54 1491.87 1023.117 2.55 2.54 11.934 3.53000 4.77879 30.51 1491.27 1023.127 2.85 2.84 11.789 3.51428 4.77631 30.48 1490.74 1023.129 3.15 3.14 11.503 3.50912 4.80666 30.66 1489.97 1023.326 3.45 3.44 11.298 3.50831 4.83264 30.82 1489.45 1023.489 3.75 3.74 11.044 3.50537 4.86263 31.01 1488.78 1023.678 4.05 4.04 10.840 3.50254 4.88642 31.15 1488.23 1023.828 4.35 4.33 10.681 3.49760 4.90123 31.24 1487.78 1023.923 4.65 4.63 10.600 3.49327 4.90633 31.27 1487.52 1023.959 4.95 4.93 10.488 3.48966 4.91669 31.33 1487.20 1024.026 5.25 5.23 10.384 3.48855 4.92961 31.40 1486.93 1024.106 5.55 5.53 10.317 3.48810 4.93830 31.46 1486.76 1024.160 5.85 5.83 10.273 3.48795 4.94419 31.49 1486.65 1024.197 6.15 6.13 10.233 3.48738 4.94905 31.52 1486.54 1024.228 6.45 6.42 10.197 3.48646 4.95277 31.54 1486.45 1024.252 6.75 6.72 10.155 3.48615 4.95832 31.58 1486.34 1024.287 7.05 7.02 10.131 3.48427 4.95900 31.58 1486.26 1024.293 7.35 7.32 10.113 3.48402 4.96120 31.59 1486.21 1024.308 7.65 7.62 10.101 3.48334 4.96189 31.60 1486.18 1024.314 7.95 7.92 10.085 3.48338 4.96418 31.61 1486.15 1024.329 8.25 8.22 10.052 3.48292 4.96826 31.63 1486.06 1024.355 8.55 8.51 10.006 3.48326 4.97526 31.68 1485.95 1024.398 8.85 8.81 9.970 3.48334 4.98048 31.71 1485.87 1024.430 9.15 9.11 9.921 3.48208 4.98561 31.74 1485.73 1024.463 9.45 9.41 9.885 3.48237 4.99118 31.77 1485.65 1024.497 9.75 9.71 9.862 3.48161 4.99345 31.79 1485.58 1024.512 10.05 10.01 9.831 3.48227 4.99883 31.82 1485.52 1024.545 10.35 10.31 9.807 3.48234 5.00233 31.84 1485.46 1024.567 10.65 10.60 9.799 3.48085 5.00142 31.84 1485.42 1024.563 10.95 10.90 9.791 3.48122 5.00311 31.85 1485.41 1024.575 11.25 11.20 9.782 3.48269 5.00643 31.87 1485.41 1024.595 11.55 11.50 9.775 3.48212 5.00657 31.87 1485.40 1024.597 11.85 11.80 9.773 3.48254 5.00759 31.87 1485.40 1024.604 12.15 12.10 9.769 3.48334 5.00923 31.89 1485.40 1024.615 12.45 12.40 9.767 3.48354 5.00978 31.89 1485.41 1024.619 12.75 12.69 9.759 3.48369 5.01118 31.90 1485.39 1024.629 13.05 12.99 9.750 3.48403 5.01304 31.91 1485.38 1024.641 13.35 13.29 9.740 3.48374 5.01398 31.92 1485.35 1024.648 13.65 13.59 9.726 3.48248 5.01418 31.91 1485.31 1024.651 13.95 13.89 9.704 3.48071 5.01481 31.92 1485.23 1024.657 14.25 14.19 9.686 3.48056 5.01722 31.93 1485.19 1024.672 14.55 14.48 9.672 3.47948 5.01773 31.93 1485.14 1024.677 14.85 14.78 9.659 3.47894 5.01880 31.94 1485.11 1024.685 15.15 15.08 9.642 3.47758 5.01931 31.94 1485.05 1024.690 15.45 15.38 9.635 3.47822 5.02122 31.95 1485.05 1024.702 15.75 15.68 9.628 3.47804 5.02197 31.96 1485.03 1024.708 16.05 15.98 9.626 3.47815 5.02247 31.96 1485.03 1024.712 16.35 16.28 9.630 3.47971 5.02407 31.97 1485.07 1024.722 16.65 16.57 9.638 3.48053 5.02418 31.97 1485.10 1024.724 16.95 16.87 9.643 3.48203 5.02556 31.98 1485.14 1024.732 17.25 17.17 9.650 3.48217 5.02474 31.98 1485.17 1024.729 17.55 17.47 9.655 3.48452 5.02752 32.00 1485.21 1024.745 17.85 17.77 9.666 3.48558 5.02736 32.00 1485.26 1024.745 18.15 18.07 9.670 3.48626 5.02784 32.00 1485.28 1024.748 18.45 18.36 9.670 3.48758 5.02963 32.01 1485.30 1024.759 18.75 18.66 9.672 3.48859 5.03087 32.02 1485.32 1024.767 19.05 18.96 9.677 3.49039 5.03269 32.04 1485.37 1024.778 19.35 19.26 9.672 3.48776 5.02967 32.01 1485.32 1024.763 19.65 19.56 9.633 3.48701 5.03425 32.04 1485.22 1024.792 19.95 19.86 9.613 3.48635 5.03621 32.05 1485.16 1024.805 20.25 20.15 9.582 3.48365 5.03678 32.05 1485.06 1024.811 20.55 20.45 9.544 3.48280 5.04106 32.08 1484.95 1024.838 20.85 20.75 9.530 3.48101 5.04060 32.07 1484.90 1024.838 21.15 21.05 9.504 3.47997 5.04277 32.08 1484.83 1024.852 21.45 21.35 9.491 3.47896 5.04324 32.08 1484.78 1024.857 21.75 21.65 9.484 3.47918 5.04466 32.09 1484.77 1024.866 22.05 21.95 9.470 3.47854 5.04568 32.10 1484.73 1024.874 22.35 22.24 9.461 3.47838 5.04678 32.11 1484.71 1024.882 22.65 22.54 9.455 3.47845 5.04778 32.11 1484.70 1024.889 22.95 22.84 9.448 3.47904 5.04966 32.12 1484.70 1024.901 23.25 23.14 9.445 3.47863 5.04956 32.12 1484.69 1024.902 23.55 23.44 9.443 3.47785 5.04873 32.12 1484.68 1024.899 24.00 23.88 9.457 3.48138 5.05170 32.14 1484.77 1024.916