*2026/01/16 10:37:49.61 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 17:25:27.000 END TIME : UTC 2025/03/11 17:25:55.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 142 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.31 2 Depth metres 0.15 42.26 3 Temperature 'deg C (ITS90)' 8.149 8.536 4 Conductivity S/m 2.29058 2.93083 5 Conductance:Specific S/m 3.4541 4.37407 6 Salinity PSS-78 21.03 27.28 7 Speed:Sound m/s 1465.83 1475.54 8 Density kg/m^3 1016.306 1021.345 $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 : 75 LATITUDE : 49 11.92860 N ! (deg min) LONGITUDE : 125 46.01680 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_172527 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 142 142 MERGEHDR 1.3 2026/01/16 10:35:41 142 142 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 142 142 CALIB 12.1 2026/01/16 10:37:13 142 142 CLEAN 5.3 2026/01/16 10:37:49 142 142 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 8.157 2.29058 3.45410 21.03 1465.83 1016.306 0.45 0.45 8.192 2.38516 3.59298 21.96 1467.12 1017.031 0.75 0.75 8.176 2.42574 3.65590 22.38 1467.58 1017.363 1.05 1.05 8.149 2.43731 3.67632 22.51 1467.64 1017.472 1.35 1.35 8.159 2.44924 3.69318 22.63 1467.83 1017.562 1.65 1.65 8.182 2.45600 3.70077 22.68 1467.99 1017.602 1.95 1.95 8.196 2.51553 3.78885 23.27 1468.78 1018.066 2.25 2.25 8.210 2.60764 3.92604 24.20 1469.98 1018.792 2.55 2.55 8.244 2.63035 3.95608 24.41 1470.37 1018.951 2.85 2.85 8.297 2.64530 3.97229 24.52 1470.72 1019.036 3.15 3.15 8.338 2.65298 3.97888 24.57 1470.95 1019.071 3.45 3.45 8.369 2.67275 4.00485 24.75 1471.29 1019.209 3.75 3.75 8.391 2.67553 4.00633 24.77 1471.40 1019.217 4.05 4.05 8.412 2.68491 4.01793 24.85 1471.58 1019.279 4.35 4.35 8.427 2.71407 4.05967 25.13 1472.00 1019.502 4.65 4.65 8.438 2.75575 4.12071 25.55 1472.55 1019.828 4.95 4.95 8.456 2.76741 4.13587 25.66 1472.76 1019.910 5.25 5.25 8.474 2.77078 4.13874 25.68 1472.86 1019.926 5.55 5.55 8.487 2.78154 4.15314 25.78 1473.04 1020.003 5.85 5.85 8.496 2.79649 4.17434 25.92 1473.26 1020.117 6.15 6.15 8.504 2.80270 4.18258 25.98 1473.36 1020.163 6.45 6.45 8.511 2.80564 4.18618 26.01 1473.42 1020.183 6.75 6.75 8.514 2.81580 4.20089 26.11 1473.57 1020.263 7.05 7.05 8.517 2.81852 4.20457 26.13 1473.61 1020.284 7.35 7.35 8.520 2.82013 4.20661 26.15 1473.65 1020.296 7.65 7.65 8.520 2.82472 4.21349 26.19 1473.71 1020.334 7.95 7.95 8.521 2.82699 4.21676 26.22 1473.74 1020.353 8.25 8.25 8.523 2.82792 4.21787 26.22 1473.77 1020.360 8.55 8.55 8.523 2.82898 4.21941 26.23 1473.79 1020.369 8.85 8.85 8.524 2.82942 4.21999 26.24 1473.80 1020.374 9.15 9.15 8.525 2.83026 4.22110 26.25 1473.82 1020.381 9.45 9.45 8.526 2.83047 4.22136 26.25 1473.82 1020.383 9.75 9.75 8.525 2.83038 4.22123 26.25 1473.83 1020.384 10.05 10.05 8.526 2.83109 4.22226 26.25 1473.84 1020.391 10.35 10.35 8.527 2.83485 4.22769 26.29 1473.90 1020.421 10.65 10.65 8.527 2.83659 4.23028 26.31 1473.93 1020.436 10.95 10.95 8.526 2.83842 4.23316 26.33 1473.95 1020.453 11.25 11.25 8.526 2.84230 4.23889 26.37 1474.00 1020.485 11.55 11.55 8.528 2.84430 4.24164 26.39 1474.04 1020.501 11.85 11.85 8.529 2.84477 4.24225 26.39 1474.05 1020.506 12.15 12.15 8.529 2.84674 4.24515 26.41 1474.08 1020.522 12.45 12.45 8.530 2.84734 4.24592 26.41 1474.10 1020.528 12.75 12.75 8.530 2.84867 4.24798 26.43 1474.12 1020.540 13.05 13.05 8.531 2.84893 4.24824 26.43 1474.13 1020.543 13.35 13.35 8.530 2.84885 4.24826 26.43 1474.13 1020.544 13.65 13.65 8.530 2.85015 4.25017 26.44 1474.15 1020.556 13.95 13.95 8.531 2.85112 4.25153 26.45 1474.17 1020.564 14.25 14.25 8.530 2.85240 4.25347 26.47 1474.19 1020.576 14.55 14.55 8.531 2.85229 4.25321 26.46 1474.19 1020.576 14.85 14.84 8.532 2.85340 4.25477 26.47 1474.22 1020.586 15.15 15.14 8.532 2.85373 4.25518 26.48 1474.23 1020.589 15.45 15.44 8.533 2.85419 4.25584 26.48 1474.24 1020.594 15.75 15.74 8.533 2.85600 4.25848 26.50 1474.27 1020.609 16.05 16.04 8.534 2.85773 4.26090 26.52 1474.30 1020.623 16.35 16.34 8.534 2.85829 4.26176 26.52 1474.31 1020.629 16.65 16.64 8.535 2.86024 4.26461 26.54 1474.34 1020.646 16.95 16.94 8.534 2.86061 4.26521 26.55 1474.35 1020.650 17.25 17.24 8.533 2.86191 4.26734 26.56 1474.36 1020.663 17.55 17.54 8.534 2.86298 4.26875 26.57 1474.39 1020.672 17.85 17.84 8.534 2.86644 4.27393 26.61 1474.43 1020.701 18.15 18.14 8.534 2.86970 4.27877 26.64 1474.48 1020.728 18.45 18.44 8.534 2.87176 4.28181 26.66 1474.51 1020.746 18.75 18.74 8.535 2.87363 4.28455 26.68 1474.54 1020.762 19.05 19.04 8.536 2.87900 4.29242 26.73 1474.62 1020.805 19.35 19.34 8.536 2.88100 4.29533 26.75 1474.65 1020.822 19.65 19.64 8.535 2.88305 4.29851 26.77 1474.68 1020.841 19.95 19.94 8.536 2.88413 4.30004 26.78 1474.70 1020.850 20.25 20.24 8.533 2.88398 4.30019 26.78 1474.69 1020.852 20.55 20.54 8.532 2.88593 4.30327 26.81 1474.72 1020.870 20.85 20.84 8.532 2.88661 4.30423 26.81 1474.73 1020.877 21.15 21.14 8.532 2.88712 4.30502 26.82 1474.74 1020.882 21.45 21.44 8.532 2.88928 4.30822 26.84 1474.77 1020.901 21.75 21.74 8.531 2.89093 4.31078 26.86 1474.80 1020.916 22.05 22.04 8.528 2.89202 4.31289 26.87 1474.80 1020.929 22.35 22.33 8.527 2.89367 4.31539 26.89 1474.83 1020.943 22.65 22.63 8.527 2.89537 4.31798 26.91 1474.85 1020.958 22.95 22.93 8.522 2.89541 4.31870 26.91 1474.84 1020.964 23.25 23.23 8.519 2.89666 4.32091 26.92 1474.86 1020.977 23.55 23.53 8.521 2.89666 4.32068 26.92 1474.87 1020.977 23.85 23.83 8.521 2.89754 4.32204 26.93 1474.88 1020.986 24.15 24.13 8.521 2.89737 4.32175 26.93 1474.88 1020.985 24.45 24.43 8.518 2.89780 4.32269 26.94 1474.89 1020.992 24.75 24.73 8.519 2.89829 4.32335 26.94 1474.90 1020.997 25.05 25.03 8.518 2.89841 4.32364 26.94 1474.90 1021.000 25.35 25.33 8.518 2.89817 4.32334 26.94 1474.90 1020.999 25.65 25.63 8.517 2.89869 4.32421 26.95 1474.91 1021.005 25.95 25.93 8.516 2.89919 4.32502 26.95 1474.92 1021.011 26.25 26.23 8.516 2.89910 4.32494 26.95 1474.93 1021.012 26.55 26.53 8.514 2.89956 4.32591 26.96 1474.93 1021.018 26.85 26.83 8.515 2.89924 4.32532 26.95 1474.93 1021.017 27.15 27.13 8.515 2.89910 4.32502 26.95 1474.94 1021.016 27.45 27.43 8.516 2.90064 4.32730 26.97 1474.96 1021.030 27.75 27.73 8.515 2.90058 4.32734 26.97 1474.96 1021.031 28.05 28.03 8.515 2.90106 4.32807 26.97 1474.97 1021.036 28.35 28.33 8.514 2.90145 4.32875 26.98 1474.98 1021.041 28.65 28.62 8.513 2.90176 4.32931 26.98 1474.99 1021.046 28.95 28.92 8.511 2.90196 4.32981 26.98 1474.99 1021.050 29.25 29.22 8.511 2.90170 4.32946 26.98 1474.99 1021.049 29.55 29.52 8.512 2.90219 4.33006 26.98 1475.01 1021.054 29.85 29.82 8.511 2.90229 4.33032 26.99 1475.01 1021.056 30.15 30.12 8.511 2.90279 4.33107 26.99 1475.02 1021.062 30.45 30.42 8.509 2.90305 4.33177 26.99 1475.02 1021.067 30.75 30.72 8.510 2.90392 4.33289 27.00 1475.04 1021.074 31.05 31.02 8.508 2.90544 4.33551 27.02 1475.06 1021.090 31.35 31.32 8.505 2.90638 4.33721 27.03 1475.07 1021.100 31.65 31.62 8.503 2.90830 4.34041 27.05 1475.09 1021.119 31.95 31.92 8.503 2.91099 4.34440 27.08 1475.13 1021.141 32.25 32.22 8.502 2.91608 4.35208 27.13 1475.20 1021.184 32.55 32.52 8.502 2.91860 4.35589 27.16 1475.23 1021.206 32.85 32.82 8.501 2.92283 4.36234 27.20 1475.29 1021.242 33.15 33.12 8.500 2.92434 4.36466 27.22 1475.31 1021.256 33.45 33.42 8.499 2.92475 4.36544 27.22 1475.31 1021.261 33.75 33.72 8.500 2.92446 4.36488 27.22 1475.32 1021.259 34.05 34.02 8.499 2.92464 4.36530 27.22 1475.32 1021.263 34.35 34.31 8.499 2.92472 4.36542 27.22 1475.33 1021.265 34.65 34.61 8.498 2.92482 4.36572 27.22 1475.33 1021.268 34.95 34.91 8.497 2.92517 4.36629 27.23 1475.34 1021.272 35.25 35.21 8.497 2.92500 4.36611 27.23 1475.34 1021.273 35.55 35.51 8.498 2.92555 4.36677 27.23 1475.35 1021.277 35.85 35.81 8.499 2.92568 4.36681 27.23 1475.36 1021.279 36.15 36.11 8.499 2.92619 4.36756 27.24 1475.38 1021.284 36.45 36.41 8.495 2.92627 4.36823 27.24 1475.37 1021.289 36.75 36.71 8.497 2.92604 4.36762 27.24 1475.38 1021.287 37.05 37.01 8.500 2.92646 4.36785 27.24 1475.40 1021.290 37.35 37.31 8.502 2.92644 4.36759 27.24 1475.41 1021.289 37.65 37.61 8.502 2.92649 4.36766 27.24 1475.41 1021.291 37.95 37.91 8.502 2.92667 4.36789 27.24 1475.42 1021.294 38.25 38.21 8.501 2.92600 4.36700 27.23 1475.41 1021.290 38.55 38.51 8.501 2.92755 4.36939 27.25 1475.44 1021.304 38.85 38.81 8.502 2.92713 4.36864 27.24 1475.44 1021.302 39.15 39.11 8.502 2.92872 4.37101 27.26 1475.46 1021.316 39.45 39.41 8.501 2.92755 4.36930 27.25 1475.45 1021.308 39.75 39.70 8.502 2.92871 4.37096 27.26 1475.47 1021.318 40.05 40.00 8.501 2.92829 4.37044 27.26 1475.47 1021.316 40.35 40.30 8.502 2.92878 4.37100 27.26 1475.48 1021.321 40.65 40.60 8.502 2.92793 4.36978 27.25 1475.48 1021.315 40.95 40.90 8.503 2.92926 4.37159 27.26 1475.50 1021.326 41.25 41.20 8.504 2.93037 4.37322 27.27 1475.52 1021.336 41.55 41.50 8.503 2.93015 4.37298 27.27 1475.52 1021.336 41.85 41.80 8.503 2.93034 4.37325 27.27 1475.53 1021.339 42.15 42.10 8.502 2.93083 4.37407 27.28 1475.54 1021.345 42.31 42.26 8.504 2.92974 4.37223 27.27 1475.53 1021.336