*2026/01/16 09:57:48.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/23 18:06:51.000 END TIME : UTC 2024/04/23 18:07:08.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 87 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.01 2 Depth metres 0.15 25.89 3 Temperature 'deg C (ITS90)' 9.935 11.467 4 Conductivity S/m 3.39843 3.48891 5 Conductance:Specific S/m 4.66555 4.99314 6 Salinity PSS-78 29.66 31.79 7 Speed:Sound m/s 1485.88 1488.61 8 Density kg/m^3 1022.544 1024.573 $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 : 74 LATITUDE : 48 54.51720 N ! (deg min) LONGITUDE : 125 20.25000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240423_180651 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 87 87 MERGEHDR 1.3 2026/01/16 09:53:49 87 87 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:14 87 87 CALIB 12.1 2026/01/16 09:56:47 87 87 CLEAN 5.3 2026/01/16 09:57:48 87 87 $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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:47 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 11.462 3.40502 4.66922 29.69 1488.61 1022.563 0.45 0.45 11.467 3.40275 4.66555 29.66 1488.60 1022.544 0.75 0.75 11.460 3.40312 4.66689 29.67 1488.59 1022.553 1.05 1.05 11.461 3.40322 4.66695 29.67 1488.60 1022.555 1.35 1.35 11.440 3.40243 4.66851 29.68 1488.54 1022.567 1.65 1.64 11.424 3.40008 4.66730 29.67 1488.48 1022.563 1.95 1.94 11.383 3.39853 4.67044 29.69 1488.36 1022.585 2.25 2.24 11.311 3.39843 4.67957 29.74 1488.18 1022.643 2.55 2.54 11.269 3.39873 4.68539 29.78 1488.08 1022.680 2.85 2.84 11.229 3.39985 4.69216 29.82 1488.00 1022.722 3.15 3.14 11.161 3.39965 4.70074 29.88 1487.82 1022.777 3.45 3.44 11.114 3.40178 4.70976 29.94 1487.73 1022.832 3.75 3.74 11.013 3.40511 4.72763 30.05 1487.52 1022.940 4.05 4.04 10.899 3.40948 4.74870 30.19 1487.28 1023.066 4.35 4.34 10.777 3.41699 4.77535 30.36 1487.06 1023.224 4.65 4.63 10.655 3.42765 4.80662 30.57 1486.88 1023.407 4.95 4.93 10.550 3.43259 4.82783 30.71 1486.67 1023.533 5.25 5.23 10.466 3.43479 4.84242 30.80 1486.49 1023.620 5.55 5.53 10.422 3.43691 4.85144 30.86 1486.41 1023.675 5.85 5.83 10.408 3.43906 4.85629 30.89 1486.40 1023.703 6.15 6.13 10.384 3.44231 4.86417 30.94 1486.39 1023.750 6.45 6.43 10.354 3.44323 4.86965 30.98 1486.32 1023.783 6.75 6.73 10.320 3.44431 4.87583 31.02 1486.25 1023.821 7.05 7.02 10.287 3.44622 4.88316 31.06 1486.20 1023.865 7.35 7.32 10.267 3.44783 4.88821 31.10 1486.17 1023.896 7.65 7.62 10.240 3.44971 4.89459 31.14 1486.13 1023.934 7.95 7.92 10.214 3.45117 4.90029 31.18 1486.08 1023.968 8.25 8.22 10.191 3.45248 4.90539 31.21 1486.04 1023.999 8.55 8.52 10.170 3.45334 4.90952 31.23 1486.01 1024.025 8.85 8.82 10.153 3.45584 4.91547 31.27 1486.00 1024.060 9.15 9.12 10.129 3.45786 4.92161 31.31 1485.97 1024.096 9.45 9.41 10.114 3.45935 4.92586 31.34 1485.95 1024.122 9.75 9.71 10.097 3.46015 4.92942 31.37 1485.92 1024.144 10.05 10.01 10.090 3.46032 4.93069 31.37 1485.91 1024.153 10.35 10.31 10.083 3.46150 4.93328 31.39 1485.91 1024.169 10.65 10.61 10.084 3.46139 4.93302 31.39 1485.92 1024.169 10.95 10.91 10.082 3.46138 4.93326 31.39 1485.92 1024.171 11.25 11.21 10.074 3.46144 4.93448 31.40 1485.90 1024.180 11.55 11.50 10.070 3.46225 4.93624 31.41 1485.91 1024.191 11.85 11.80 10.066 3.46296 4.93780 31.42 1485.91 1024.201 12.15 12.10 10.063 3.46288 4.93811 31.42 1485.91 1024.204 12.45 12.40 10.056 3.46476 4.94172 31.45 1485.92 1024.226 12.75 12.70 10.044 3.46580 4.94487 31.47 1485.90 1024.245 13.05 13.00 10.033 3.46649 4.94742 31.48 1485.89 1024.261 13.35 13.30 10.026 3.46896 4.95193 31.51 1485.91 1024.288 13.65 13.59 10.022 3.47080 4.95516 31.54 1485.92 1024.307 13.95 13.89 10.015 3.47166 4.95734 31.55 1485.92 1024.321 14.25 14.19 10.003 3.47197 4.95957 31.56 1485.90 1024.335 14.55 14.49 9.994 3.47278 4.96196 31.58 1485.89 1024.350 14.85 14.79 9.988 3.47315 4.96339 31.59 1485.88 1024.360 15.15 15.09 9.984 3.47392 4.96500 31.60 1485.89 1024.370 15.45 15.39 9.981 3.47639 4.96900 31.63 1485.91 1024.394 15.75 15.68 9.970 3.47853 4.97363 31.66 1485.92 1024.421 16.05 15.98 9.964 3.48008 4.97667 31.68 1485.92 1024.440 16.35 16.28 9.964 3.48111 4.97818 31.69 1485.94 1024.449 16.65 16.58 9.962 3.48320 4.98137 31.71 1485.97 1024.468 16.95 16.88 9.964 3.48289 4.98075 31.71 1485.97 1024.466 17.25 17.18 9.964 3.48347 4.98155 31.71 1485.98 1024.472 17.55 17.48 9.962 3.48433 4.98304 31.72 1486.00 1024.481 17.85 17.77 9.955 3.48428 4.98393 31.73 1485.98 1024.488 18.15 18.07 9.954 3.48452 4.98439 31.73 1485.99 1024.492 18.45 18.37 9.950 3.48486 4.98550 31.74 1485.99 1024.499 18.75 18.67 9.953 3.48525 4.98568 31.74 1486.00 1024.501 19.05 18.97 9.947 3.48522 4.98643 31.75 1485.99 1024.507 19.35 19.27 9.947 3.48535 4.98661 31.75 1486.00 1024.509 19.65 19.56 9.946 3.48500 4.98624 31.74 1486.00 1024.509 19.95 19.86 9.946 3.48558 4.98708 31.75 1486.01 1024.515 20.25 20.16 9.944 3.48543 4.98713 31.75 1486.01 1024.516 20.55 20.46 9.943 3.48591 4.98797 31.75 1486.01 1024.522 20.85 20.76 9.943 3.48649 4.98887 31.76 1486.03 1024.528 21.15 21.06 9.941 3.48670 4.98939 31.76 1486.03 1024.533 21.45 21.36 9.941 3.48679 4.98955 31.77 1486.03 1024.535 21.75 21.65 9.945 3.48666 4.98874 31.76 1486.05 1024.531 22.05 21.95 9.946 3.48644 4.98835 31.76 1486.05 1024.530 22.35 22.25 9.943 3.48662 4.98904 31.76 1486.05 1024.536 22.65 22.55 9.942 3.48659 4.98905 31.76 1486.05 1024.537 22.95 22.85 9.941 3.48634 4.98896 31.76 1486.05 1024.538 23.25 23.15 9.941 3.48697 4.98979 31.77 1486.07 1024.544 23.55 23.45 9.943 3.48757 4.99030 31.77 1486.08 1024.548 23.85 23.74 9.945 3.48747 4.98994 31.77 1486.09 1024.547 24.15 24.04 9.944 3.48722 4.98968 31.77 1486.09 1024.547 24.45 24.34 9.940 3.48754 4.99074 31.77 1486.09 1024.554 24.75 24.64 9.938 3.48790 4.99161 31.78 1486.09 1024.560 25.05 24.94 9.938 3.48765 4.99115 31.77 1486.10 1024.559 25.35 25.24 9.939 3.48807 4.99170 31.78 1486.11 1024.563 25.65 25.53 9.937 3.48891 4.99314 31.79 1486.12 1024.573 26.01 25.89 9.935 3.48009 4.98075 31.70 1486.01 1024.506