*2026/01/16 09:57:55.66 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 18:48:20.000 END TIME : UTC 2024/10/15 18:48:34.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 73 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.84 2 Depth metres 0.15 21.77 3 Temperature 'deg C (ITS90)' 13.016 13.381 4 Conductivity S/m 3.53338 3.59229 5 Conductance:Specific S/m 4.60298 4.72475 6 Salinity PSS-78 29.39 30.22 7 Speed:Sound m/s 1494.73 1494.97 8 Density kg/m^3 1021.98 1022.786 $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 : 264 LATITUDE : 49 14.28410 N ! (deg min) LONGITUDE : 125 54.81620 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_184820 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 73 73 MERGEHDR 1.3 2026/01/16 09:54:07 73 73 HDREDIT2 3.2 2026/01/16 09:55:12 ? ? REMOVECH 8.2 2026/01/16 09:56:23 73 73 CALIB 12.1 2026/01/16 09:56:56 73 73 CLEAN 5.3 2026/01/16 09:57:55 73 73 $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 13.381 3.53338 4.60298 29.39 1494.84 1021.980 0.45 0.45 13.329 3.53568 4.61224 29.45 1494.75 1022.039 0.75 0.75 13.285 3.54521 4.62998 29.57 1494.75 1022.143 1.05 1.05 13.267 3.54779 4.63558 29.61 1494.73 1022.177 1.35 1.35 13.227 3.55698 4.65240 29.73 1494.74 1022.276 1.65 1.65 13.224 3.56223 4.65971 29.78 1494.80 1022.318 1.95 1.94 13.229 3.56349 4.66073 29.79 1494.83 1022.324 2.25 2.24 13.223 3.56432 4.66250 29.80 1494.83 1022.336 2.55 2.54 13.211 3.56758 4.66831 29.84 1494.84 1022.370 2.85 2.84 13.198 3.56875 4.67144 29.86 1494.82 1022.391 3.15 3.14 13.187 3.56956 4.67377 29.88 1494.81 1022.406 3.45 3.44 13.180 3.57025 4.67553 29.89 1494.81 1022.418 3.75 3.74 13.175 3.57123 4.67747 29.90 1494.81 1022.430 4.05 4.04 13.171 3.57385 4.68137 29.93 1494.83 1022.453 4.35 4.34 13.163 3.57588 4.68506 29.95 1494.84 1022.476 4.65 4.64 13.158 3.57579 4.68554 29.96 1494.83 1022.481 4.95 4.94 13.155 3.57510 4.68492 29.95 1494.82 1022.479 5.25 5.23 13.152 3.57526 4.68551 29.96 1494.82 1022.484 5.55 5.53 13.149 3.57652 4.68754 29.97 1494.83 1022.496 5.85 5.83 13.146 3.57725 4.68887 29.98 1494.84 1022.505 6.15 6.13 13.144 3.57686 4.68860 29.98 1494.84 1022.505 6.45 6.43 13.143 3.57724 4.68927 29.98 1494.84 1022.510 6.75 6.73 13.142 3.57770 4.69001 29.99 1494.85 1022.516 7.05 7.03 13.140 3.57713 4.68950 29.98 1494.84 1022.515 7.35 7.33 13.139 3.57732 4.68986 29.98 1494.85 1022.518 7.65 7.63 13.138 3.57683 4.68928 29.98 1494.84 1022.516 7.95 7.93 13.137 3.57698 4.68960 29.98 1494.85 1022.519 8.25 8.23 13.137 3.57654 4.68906 29.98 1494.85 1022.518 8.55 8.52 13.138 3.57620 4.68847 29.97 1494.85 1022.516 8.85 8.82 13.139 3.57549 4.68749 29.97 1494.85 1022.511 9.15 9.12 13.137 3.57550 4.68770 29.97 1494.85 1022.514 9.45 9.42 13.136 3.57544 4.68779 29.97 1494.85 1022.516 9.75 9.72 13.132 3.57559 4.68840 29.97 1494.85 1022.521 10.05 10.02 13.130 3.57582 4.68898 29.98 1494.85 1022.526 10.35 10.32 13.127 3.57609 4.68970 29.98 1494.85 1022.531 10.65 10.62 13.125 3.57567 4.68942 29.98 1494.85 1022.531 10.95 10.92 13.127 3.57569 4.68920 29.98 1494.86 1022.531 11.25 11.22 13.128 3.57566 4.68907 29.98 1494.86 1022.532 11.55 11.52 13.128 3.57509 4.68826 29.97 1494.86 1022.528 11.85 11.81 13.128 3.57558 4.68892 29.98 1494.87 1022.533 12.15 12.11 13.126 3.57618 4.68990 29.98 1494.88 1022.540 12.45 12.41 13.125 3.57588 4.68962 29.98 1494.88 1022.540 12.75 12.71 13.128 3.57583 4.68923 29.98 1494.89 1022.539 13.05 13.01 13.126 3.57503 4.68841 29.97 1494.88 1022.536 13.35 13.31 13.124 3.57571 4.68961 29.98 1494.89 1022.544 13.65 13.61 13.124 3.57606 4.69007 29.98 1494.90 1022.548 13.95 13.91 13.120 3.57692 4.69161 29.99 1494.90 1022.558 14.25 14.21 13.119 3.57687 4.69176 29.99 1494.90 1022.560 14.55 14.51 13.117 3.57736 4.69266 30.00 1494.91 1022.567 14.85 14.81 13.113 3.57720 4.69285 30.00 1494.90 1022.569 15.15 15.10 13.111 3.57690 4.69275 30.00 1494.90 1022.570 15.45 15.40 13.110 3.57657 4.69246 30.00 1494.90 1022.570 15.75 15.70 13.110 3.57698 4.69302 30.00 1494.91 1022.574 16.05 16.00 13.103 3.57746 4.69441 30.01 1494.90 1022.584 16.35 16.30 13.103 3.57798 4.69518 30.02 1494.91 1022.590 16.65 16.60 13.100 3.57820 4.69586 30.02 1494.91 1022.595 16.95 16.90 13.096 3.57794 4.69592 30.02 1494.90 1022.597 17.25 17.20 13.093 3.57887 4.69753 30.03 1494.91 1022.608 17.55 17.50 13.093 3.57897 4.69766 30.03 1494.92 1022.610 17.85 17.80 13.096 3.57934 4.69785 30.03 1494.93 1022.612 18.15 18.09 13.097 3.57887 4.69701 30.03 1494.94 1022.608 18.45 18.39 13.095 3.57869 4.69707 30.03 1494.93 1022.610 18.75 18.69 13.091 3.58010 4.69936 30.04 1494.94 1022.624 19.05 18.99 13.083 3.58053 4.70092 30.05 1494.93 1022.635 19.35 19.29 13.079 3.58175 4.70307 30.07 1494.94 1022.649 19.65 19.59 13.072 3.58246 4.70486 30.08 1494.94 1022.661 19.95 19.89 13.063 3.58487 4.70908 30.11 1494.95 1022.686 20.25 20.19 13.056 3.58776 4.71380 30.14 1494.97 1022.714 20.55 20.49 13.040 3.59064 4.71961 30.18 1494.96 1022.750 20.85 20.79 13.032 3.59133 4.72142 30.19 1494.96 1022.762 21.15 21.09 13.023 3.59213 4.72356 30.21 1494.95 1022.776 21.45 21.38 13.018 3.59202 4.72416 30.21 1494.94 1022.781 21.84 21.77 13.016 3.59229 4.72475 30.22 1494.94 1022.786