*2026/01/16 10:37:52.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/10 17:10:36.000 END TIME : UTC 2025/04/10 17:10:59.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 120 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.97 2 Depth metres 0.15 35.89 3 Temperature 'deg C (ITS90)' 8.531 9.606 4 Conductivity S/m 1.48207 3.13947 5 Conductance:Specific S/m 2.18647 4.68119 6 Salinity PSS-78 12.82 29.41 7 Speed:Sound m/s 1458.66 1479.4 8 Density kg/m^3 1009.816 1022.978 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 107 LATITUDE : 50 6.15800 N ! (deg min) LONGITUDE : 127 8.23010 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250410_171036 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 120 120 MERGEHDR 1.3 2026/01/16 10:35:42 120 120 HDREDIT2 3.2 2026/01/16 10:36:13 ? ? REMOVECH 8.2 2026/01/16 10:36:39 120 120 CALIB 12.1 2026/01/16 10:37:15 120 120 CLEAN 5.3 2026/01/16 10:37:52 120 120 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:13 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:15 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 10:37:42 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 8.892 1.48207 2.18647 12.82 1458.66 1009.816 0.45 0.45 9.092 1.50284 2.20412 12.94 1459.60 1009.891 0.75 0.76 9.375 1.66945 2.42827 14.39 1462.47 1010.990 1.05 1.06 9.558 2.01923 2.92151 17.61 1467.10 1013.476 1.35 1.36 9.606 2.62013 3.78561 23.39 1474.30 1017.969 1.65 1.66 9.567 2.85348 4.12749 25.72 1476.99 1019.792 1.95 1.96 9.598 2.97329 4.29691 26.89 1478.53 1020.700 2.25 2.26 9.581 2.99619 4.33209 27.13 1478.77 1020.892 2.55 2.56 9.575 3.01729 4.36345 27.35 1479.01 1021.063 2.85 2.86 9.551 3.03596 4.39341 27.55 1479.18 1021.227 3.15 3.16 9.543 3.05128 4.41661 27.71 1479.35 1021.354 3.45 3.46 9.514 3.05393 4.42419 27.76 1479.30 1021.398 3.75 3.76 9.494 3.05528 4.42876 27.79 1479.27 1021.426 4.05 4.06 9.483 3.05575 4.43085 27.81 1479.25 1021.439 4.35 4.36 9.473 3.05638 4.43301 27.82 1479.23 1021.452 4.65 4.65 9.462 3.05879 4.43786 27.85 1479.24 1021.480 4.95 4.95 9.458 3.06451 4.44670 27.91 1479.30 1021.530 5.25 5.25 9.452 3.06695 4.45101 27.94 1479.32 1021.555 5.55 5.55 9.445 3.07445 4.46287 28.02 1479.40 1021.621 5.85 5.85 9.438 3.07494 4.46440 28.03 1479.39 1021.631 6.15 6.15 9.431 3.07591 4.46678 28.05 1479.39 1021.645 6.45 6.45 9.421 3.07930 4.47305 28.09 1479.40 1021.681 6.75 6.75 9.399 3.08308 4.48134 28.14 1479.39 1021.728 7.05 7.05 9.382 3.08437 4.48539 28.17 1479.37 1021.753 7.35 7.35 9.372 3.08523 4.48806 28.19 1479.35 1021.769 7.65 7.65 9.360 3.08464 4.48874 28.19 1479.32 1021.775 7.95 7.95 9.351 3.08458 4.48981 28.20 1479.30 1021.782 8.25 8.25 9.347 3.08496 4.49093 28.20 1479.30 1021.790 8.55 8.55 9.342 3.08534 4.49208 28.21 1479.29 1021.797 8.85 8.84 9.336 3.08540 4.49290 28.22 1479.28 1021.803 9.15 9.14 9.334 3.08547 4.49333 28.22 1479.28 1021.807 9.45 9.44 9.331 3.08422 4.49194 28.21 1479.26 1021.801 9.75 9.74 9.327 3.08511 4.49375 28.22 1479.27 1021.812 10.05 10.04 9.322 3.08499 4.49423 28.22 1479.26 1021.817 10.35 10.34 9.318 3.08544 4.49542 28.23 1479.26 1021.825 10.65 10.64 9.316 3.08656 4.49730 28.24 1479.27 1021.836 10.95 10.94 9.315 3.08695 4.49792 28.25 1479.28 1021.841 11.25 11.24 9.315 3.08662 4.49749 28.24 1479.28 1021.840 11.55 11.54 9.312 3.08735 4.49889 28.25 1479.28 1021.849 11.85 11.84 9.308 3.08882 4.50154 28.27 1479.30 1021.865 12.15 12.14 9.306 3.08949 4.50290 28.28 1479.30 1021.873 12.45 12.44 9.302 3.08961 4.50359 28.29 1479.30 1021.879 12.75 12.74 9.294 3.09004 4.50519 28.30 1479.29 1021.889 13.05 13.03 9.286 3.08989 4.50599 28.30 1479.27 1021.895 13.35 13.33 9.276 3.09076 4.50863 28.32 1479.25 1021.911 13.65 13.63 9.267 3.09140 4.51080 28.33 1479.24 1021.925 13.95 13.93 9.257 3.09170 4.51256 28.34 1479.22 1021.936 14.25 14.23 9.244 3.09226 4.51506 28.36 1479.20 1021.952 14.55 14.53 9.232 3.09199 4.51627 28.36 1479.17 1021.960 14.85 14.83 9.221 3.09046 4.51547 28.36 1479.12 1021.958 15.15 15.13 9.212 3.09121 4.51777 28.37 1479.11 1021.972 15.45 15.43 9.193 3.09010 4.51861 28.38 1479.05 1021.979 15.75 15.73 9.174 3.08985 4.52076 28.39 1479.00 1021.993 16.05 16.03 9.161 3.08896 4.52115 28.39 1478.96 1021.997 16.35 16.33 9.150 3.08765 4.52078 28.38 1478.91 1021.997 16.65 16.62 9.125 3.08683 4.52282 28.40 1478.84 1022.010 16.95 16.92 9.091 3.08630 4.52651 28.42 1478.75 1022.033 17.25 17.22 9.064 3.08486 4.52801 28.42 1478.66 1022.044 17.55 17.52 9.047 3.08443 4.52966 28.43 1478.61 1022.055 17.85 17.82 9.031 3.08440 4.53176 28.45 1478.57 1022.068 18.15 18.12 9.001 3.08357 4.53457 28.46 1478.48 1022.086 18.45 18.42 8.968 3.08313 4.53829 28.48 1478.39 1022.109 18.75 18.72 8.931 3.08233 4.54200 28.50 1478.28 1022.133 19.05 19.02 8.910 3.08235 4.54493 28.52 1478.23 1022.151 19.35 19.32 8.885 3.08190 4.54759 28.54 1478.16 1022.168 19.65 19.62 8.851 3.08166 4.55182 28.56 1478.06 1022.193 19.95 19.92 8.826 3.08229 4.55606 28.59 1478.01 1022.219 20.25 20.21 8.807 3.08179 4.55798 28.60 1477.95 1022.231 20.55 20.51 8.795 3.08177 4.55948 28.61 1477.92 1022.241 20.85 20.81 8.787 3.08193 4.56080 28.61 1477.91 1022.250 21.15 21.11 8.776 3.08220 4.56268 28.63 1477.89 1022.262 21.45 21.41 8.768 3.08139 4.56257 28.62 1477.86 1022.263 21.75 21.71 8.761 3.08242 4.56509 28.64 1477.86 1022.278 22.05 22.01 8.747 3.08287 4.56755 28.66 1477.83 1022.293 22.35 22.31 8.738 3.08416 4.57077 28.68 1477.82 1022.312 22.65 22.61 8.734 3.08473 4.57214 28.69 1477.82 1022.321 22.95 22.91 8.725 3.08478 4.57345 28.69 1477.81 1022.330 23.25 23.21 8.717 3.08510 4.57499 28.70 1477.79 1022.340 23.55 23.51 8.712 3.08499 4.57547 28.71 1477.78 1022.344 23.85 23.80 8.707 3.08467 4.57575 28.71 1477.77 1022.347 24.15 24.10 8.704 3.08487 4.57638 28.71 1477.77 1022.352 24.45 24.40 8.701 3.08522 4.57733 28.72 1477.77 1022.358 24.75 24.70 8.698 3.08569 4.57847 28.72 1477.77 1022.366 25.05 25.00 8.695 3.08535 4.57833 28.72 1477.76 1022.367 25.35 25.30 8.692 3.08587 4.57956 28.73 1477.76 1022.375 25.65 25.60 8.689 3.08636 4.58072 28.74 1477.77 1022.383 25.95 25.90 8.687 3.08601 4.58039 28.74 1477.76 1022.382 26.25 26.20 8.683 3.08660 4.58191 28.74 1477.76 1022.392 26.55 26.50 8.675 3.08708 4.58363 28.76 1477.75 1022.403 26.85 26.80 8.662 3.08682 4.58497 28.76 1477.72 1022.412 27.15 27.09 8.646 3.08929 4.59085 28.80 1477.71 1022.446 27.45 27.39 8.636 3.09331 4.59827 28.85 1477.74 1022.487 27.75 27.69 8.620 3.09487 4.60272 28.88 1477.72 1022.514 28.05 27.99 8.602 3.09743 4.60897 28.92 1477.70 1022.549 28.35 28.29 8.589 3.10070 4.61558 28.97 1477.72 1022.587 28.65 28.59 8.582 3.10386 4.62132 29.00 1477.74 1022.620 28.95 28.89 8.577 3.10455 4.62301 29.01 1477.74 1022.630 29.25 29.19 8.573 3.10512 4.62449 29.02 1477.74 1022.640 29.55 29.49 8.569 3.10631 4.62681 29.04 1477.75 1022.654 29.85 29.79 8.566 3.10643 4.62740 29.04 1477.75 1022.659 30.15 30.08 8.563 3.10692 4.62845 29.05 1477.75 1022.666 30.45 30.38 8.562 3.10772 4.62987 29.06 1477.76 1022.675 30.75 30.68 8.561 3.10803 4.63041 29.06 1477.77 1022.679 31.05 30.98 8.563 3.11152 4.63530 29.10 1477.82 1022.707 31.35 31.28 8.565 3.11404 4.63888 29.12 1477.86 1022.727 31.65 31.58 8.566 3.11554 4.64098 29.14 1477.89 1022.740 31.95 31.88 8.568 3.11694 4.64273 29.15 1477.92 1022.751 32.25 32.18 8.568 3.11729 4.64321 29.15 1477.93 1022.754 32.55 32.48 8.569 3.11866 4.64510 29.17 1477.95 1022.766 32.85 32.78 8.574 3.11883 4.64473 29.16 1477.97 1022.765 33.15 33.07 8.576 3.11924 4.64500 29.17 1477.99 1022.768 33.45 33.37 8.579 3.12009 4.64595 29.17 1478.01 1022.774 33.75 33.67 8.579 3.12003 4.64581 29.17 1478.02 1022.775 34.05 33.97 8.573 3.12083 4.64779 29.18 1478.02 1022.787 34.35 34.27 8.567 3.12037 4.64801 29.18 1478.00 1022.790 34.65 34.57 8.557 3.12693 4.65916 29.26 1478.06 1022.852 34.95 34.87 8.546 3.13309 4.66979 29.33 1478.11 1022.911 35.25 35.17 8.538 3.13635 4.67582 29.37 1478.14 1022.946 35.55 35.47 8.531 3.13915 4.68090 29.41 1478.16 1022.975 35.97 35.89 8.533 3.13947 4.68119 29.41 1478.17 1022.978