*2026/01/16 09:57:50.50 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 16:26:01.000 END TIME : UTC 2024/05/21 16:26:17.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 83 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.66 2 Depth metres 0.15 24.53 3 Temperature 'deg C (ITS90)' 9.073 12.03 4 Conductivity S/m 3.45085 3.58901 5 Conductance:Specific S/m 4.8341 5.06607 6 Salinity PSS-78 30.91 32.19 7 Speed:Sound m/s 1483.39 1492.05 8 Density kg/m^3 1023.411 1025.016 $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 : 115 LATITUDE : 48 51.14760 N ! (deg min) LONGITUDE : 125 11.81950 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_162601 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 83 83 MERGEHDR 1.3 2026/01/16 09:53:52 83 83 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:16 83 83 CALIB 12.1 2026/01/16 09:56:49 83 83 CLEAN 5.3 2026/01/16 09:57:50 83 83 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:16 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:49 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 12.030 3.58011 4.83411 30.91 1492.05 1023.411 0.45 0.45 12.029 3.58002 4.83410 30.91 1492.05 1023.412 0.75 0.75 12.025 3.58059 4.83536 30.92 1492.05 1023.421 1.05 1.05 12.007 3.58217 4.83981 30.95 1492.03 1023.448 1.35 1.34 11.985 3.58415 4.84534 30.99 1492.00 1023.482 1.65 1.64 11.948 3.58453 4.85073 31.02 1491.92 1023.517 1.95 1.94 11.907 3.58668 4.85902 31.07 1491.85 1023.568 2.25 2.24 11.852 3.58805 4.86822 31.13 1491.73 1023.626 2.55 2.54 11.813 3.58901 4.87459 31.18 1491.65 1023.666 2.85 2.84 11.695 3.58434 4.88403 31.23 1491.31 1023.732 3.15 3.14 11.562 3.58170 4.89809 31.32 1490.96 1023.823 3.45 3.44 11.429 3.57795 4.91086 31.39 1490.59 1023.908 3.75 3.73 11.309 3.57021 4.91637 31.42 1490.21 1023.951 4.05 4.03 11.140 3.56381 4.93054 31.50 1489.71 1024.045 4.35 4.33 11.026 3.56040 4.94147 31.56 1489.39 1024.117 4.65 4.63 10.977 3.55784 4.94463 31.58 1489.25 1024.140 4.95 4.93 10.925 3.55480 4.94751 31.60 1489.08 1024.161 5.25 5.23 10.872 3.55114 4.94973 31.60 1488.91 1024.179 5.55 5.53 10.825 3.54910 4.95333 31.62 1488.78 1024.204 5.85 5.82 10.747 3.54283 4.95538 31.63 1488.51 1024.223 6.15 6.12 10.663 3.53834 4.96085 31.66 1488.25 1024.261 6.45 6.42 10.586 3.53640 4.96876 31.71 1488.04 1024.312 6.75 6.72 10.529 3.53453 4.97407 31.74 1487.88 1024.347 7.05 7.02 10.485 3.53285 4.97801 31.76 1487.75 1024.373 7.35 7.32 10.469 3.53115 4.97778 31.75 1487.69 1024.374 7.65 7.62 10.458 3.53104 4.97916 31.76 1487.67 1024.384 7.95 7.91 10.451 3.53043 4.97933 31.76 1487.65 1024.387 8.25 8.21 10.441 3.52660 4.97538 31.73 1487.58 1024.367 8.55 8.51 10.406 3.52029 4.97127 31.70 1487.42 1024.348 8.85 8.81 10.327 3.51810 4.97927 31.75 1487.20 1024.399 9.15 9.11 10.198 3.51198 4.98883 31.80 1486.80 1024.462 9.45 9.41 10.097 3.50737 4.99672 31.84 1486.49 1024.514 9.75 9.71 9.989 3.50431 5.00779 31.91 1486.19 1024.583 10.05 10.00 9.940 3.49818 5.00597 31.89 1485.99 1024.577 10.35 10.30 9.916 3.49765 5.00863 31.90 1485.93 1024.595 10.65 10.60 9.876 3.49642 5.01264 31.92 1485.82 1024.621 10.95 10.90 9.802 3.49289 5.01823 31.95 1485.59 1024.657 11.25 11.20 9.749 3.48582 5.01571 31.93 1485.37 1024.648 11.55 11.50 9.693 3.47920 5.01427 31.91 1485.15 1024.644 11.85 11.80 9.616 3.47629 5.02124 31.95 1484.92 1024.688 12.15 12.09 9.552 3.47467 5.02819 31.99 1484.74 1024.731 12.45 12.39 9.506 3.47370 5.03345 32.02 1484.61 1024.764 12.75 12.69 9.459 3.47189 5.03769 32.04 1484.47 1024.791 13.05 12.99 9.438 3.47065 5.03906 32.05 1484.41 1024.801 13.35 13.29 9.415 3.46957 5.04074 32.06 1484.34 1024.813 13.65 13.59 9.404 3.46896 5.04151 32.06 1484.31 1024.819 13.95 13.88 9.397 3.46792 5.04104 32.06 1484.28 1024.818 14.25 14.18 9.391 3.46827 5.04244 32.07 1484.28 1024.827 14.55 14.48 9.382 3.46721 5.04213 32.06 1484.25 1024.827 14.85 14.78 9.378 3.46708 5.04254 32.07 1484.24 1024.831 15.15 15.08 9.366 3.46729 5.04462 32.08 1484.22 1024.844 15.45 15.38 9.363 3.46706 5.04479 32.08 1484.21 1024.847 15.75 15.67 9.361 3.46728 5.04530 32.08 1484.21 1024.851 16.05 15.97 9.362 3.46679 5.04451 32.08 1484.21 1024.848 16.35 16.27 9.359 3.46664 5.04475 32.08 1484.21 1024.850 16.65 16.57 9.352 3.46537 5.04398 32.07 1484.18 1024.848 16.95 16.87 9.346 3.46607 5.04589 32.09 1484.17 1024.860 17.25 17.17 9.340 3.46597 5.04662 32.09 1484.16 1024.865 17.55 17.47 9.338 3.46653 5.04764 32.10 1484.17 1024.873 17.85 17.76 9.337 3.46618 5.04732 32.09 1484.17 1024.872 18.15 18.06 9.334 3.46601 5.04748 32.09 1484.16 1024.874 18.45 18.36 9.328 3.46478 5.04660 32.09 1484.14 1024.871 18.75 18.66 9.312 3.46380 5.04747 32.09 1484.09 1024.878 19.05 18.96 9.263 3.46024 5.04951 32.10 1483.92 1024.893 19.35 19.26 9.211 3.45760 5.05339 32.12 1483.76 1024.918 19.65 19.55 9.178 3.45612 5.05610 32.13 1483.66 1024.936 19.95 19.85 9.157 3.45510 5.05770 32.14 1483.60 1024.947 20.25 20.15 9.139 3.45425 5.05913 32.15 1483.54 1024.957 20.55 20.45 9.132 3.45454 5.06063 32.16 1483.53 1024.966 20.85 20.75 9.127 3.45389 5.06033 32.15 1483.52 1024.966 21.15 21.05 9.120 3.45293 5.05996 32.15 1483.49 1024.966 21.45 21.34 9.106 3.45183 5.06045 32.15 1483.45 1024.970 21.75 21.64 9.092 3.45179 5.06247 32.16 1483.41 1024.983 22.05 21.94 9.087 3.45134 5.06258 32.16 1483.40 1024.985 22.35 22.24 9.085 3.45085 5.06216 32.16 1483.39 1024.984 22.65 22.54 9.083 3.45101 5.06262 32.16 1483.40 1024.988 22.95 22.84 9.081 3.45137 5.06356 32.17 1483.40 1024.995 23.25 23.13 9.079 3.45110 5.06332 32.17 1483.40 1024.995 23.55 23.43 9.076 3.45125 5.06410 32.17 1483.39 1025.001 23.85 23.73 9.073 3.45095 5.06402 32.17 1483.39 1025.002 24.15 24.03 9.080 3.45146 5.06375 32.17 1483.42 1025.001 24.45 24.33 9.086 3.45172 5.06332 32.17 1483.44 1025.000 24.66 24.53 9.084 3.45340 5.06607 32.19 1483.46 1025.016