*2026/01/16 10:37:46.54 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/24 00:05:48.000 END TIME : UTC 2025/01/24 00:06:12.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 122 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.45 2 Depth metres 0.15 36.28 3 Temperature 'deg C (ITS90)' 7.341 10.387 4 Conductivity S/m 2.86397 3.50869 5 Conductance:Specific S/m 4.42775 4.97378 6 Salinity PSS-78 27.51 31.69 7 Speed:Sound m/s 1470.65 1487.38 8 Density kg/m^3 1021.483 1024.489 $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 : 36 LATITUDE : 48 54.69850 N ! (deg min) LONGITUDE : 125 1.01010 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250124_000548 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 122 122 MERGEHDR 1.3 2026/01/16 10:35:38 122 122 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 122 122 CALIB 12.1 2026/01/16 10:37:10 122 122 CLEAN 5.3 2026/01/16 10:37:46 122 122 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 7.341 2.86397 4.42775 27.51 1470.65 1021.483 0.45 0.45 7.427 2.87886 4.43896 27.60 1471.10 1021.543 0.75 0.75 7.648 2.93299 4.49181 27.99 1472.45 1021.826 1.05 1.05 8.203 3.03662 4.57278 28.63 1475.38 1022.251 1.35 1.35 8.611 3.14175 4.67371 29.38 1477.87 1022.787 1.65 1.65 8.717 3.21390 4.76594 30.04 1479.08 1023.286 1.95 1.94 8.999 3.22419 4.74154 29.91 1479.98 1023.143 2.25 2.24 9.372 3.29274 4.78992 30.29 1481.84 1023.390 2.55 2.54 9.619 3.32971 4.80908 30.46 1482.96 1023.483 2.85 2.84 9.839 3.35141 4.80989 30.49 1483.81 1023.475 3.15 3.14 9.998 3.39573 4.85132 30.81 1484.77 1023.693 3.45 3.44 10.108 3.41316 4.86101 30.89 1485.28 1023.741 3.75 3.74 10.187 3.42286 4.86383 30.92 1485.60 1023.752 4.05 4.04 10.242 3.42791 4.86342 30.92 1485.81 1023.747 4.35 4.33 10.279 3.43342 4.86611 30.94 1485.98 1023.760 4.65 4.63 10.298 3.43655 4.86789 30.96 1486.07 1023.770 4.95 4.93 10.308 3.43672 4.86673 30.95 1486.10 1023.764 5.25 5.23 10.321 3.43554 4.86335 30.93 1486.13 1023.746 5.55 5.53 10.333 3.43737 4.86422 30.94 1486.18 1023.751 5.85 5.83 10.337 3.44010 4.86761 30.96 1486.23 1023.771 6.15 6.13 10.326 3.44026 4.86930 30.97 1486.21 1023.782 6.45 6.43 10.322 3.44087 4.87073 30.98 1486.21 1023.792 6.75 6.72 10.316 3.44168 4.87265 30.99 1486.21 1023.804 7.05 7.02 10.314 3.44238 4.87402 31.00 1486.22 1023.813 7.35 7.32 10.318 3.44222 4.87311 31.00 1486.23 1023.809 7.65 7.62 10.320 3.44350 4.87471 31.01 1486.26 1023.819 7.95 7.92 10.321 3.44509 4.87683 31.02 1486.28 1023.832 8.25 8.22 10.334 3.44748 4.87843 31.04 1486.35 1023.841 8.55 8.52 10.348 3.44940 4.87921 31.04 1486.42 1023.845 8.85 8.82 10.352 3.45278 4.88345 31.07 1486.47 1023.870 9.15 9.11 10.354 3.45471 4.88593 31.09 1486.50 1023.884 9.45 9.41 10.363 3.45662 4.88739 31.10 1486.55 1023.893 9.75 9.71 10.373 3.45808 4.88805 31.11 1486.60 1023.897 10.05 10.01 10.381 3.46010 4.88973 31.12 1486.65 1023.907 10.35 10.31 10.383 3.46092 4.89065 31.13 1486.67 1023.913 10.65 10.61 10.385 3.46129 4.89086 31.13 1486.69 1023.916 10.95 10.91 10.387 3.46123 4.89054 31.13 1486.70 1023.915 11.25 11.20 10.385 3.46043 4.88974 31.12 1486.69 1023.912 11.55 11.50 10.382 3.46015 4.88966 31.12 1486.68 1023.913 11.85 11.80 10.383 3.46051 4.89006 31.12 1486.69 1023.916 12.15 12.10 10.382 3.46221 4.89261 31.14 1486.72 1023.932 12.45 12.40 10.383 3.46443 4.89565 31.16 1486.75 1023.950 12.75 12.70 10.378 3.46610 4.89868 31.18 1486.76 1023.968 13.05 13.00 10.381 3.46626 4.89853 31.18 1486.77 1023.968 13.35 13.30 10.383 3.46629 4.89827 31.18 1486.79 1023.968 13.65 13.59 10.381 3.46778 4.90056 31.19 1486.80 1023.982 13.95 13.89 10.379 3.46894 4.90252 31.21 1486.82 1023.994 14.25 14.19 10.374 3.46892 4.90325 31.21 1486.81 1024.000 14.55 14.49 10.372 3.47021 4.90524 31.23 1486.83 1024.012 14.85 14.79 10.374 3.47088 4.90593 31.23 1486.84 1024.017 15.15 15.09 10.377 3.47262 4.90805 31.25 1486.88 1024.030 15.45 15.39 10.374 3.47376 4.91007 31.26 1486.89 1024.042 15.75 15.68 10.370 3.47448 4.91166 31.27 1486.89 1024.053 16.05 15.98 10.367 3.47447 4.91201 31.27 1486.89 1024.056 16.35 16.28 10.367 3.47462 4.91221 31.27 1486.89 1024.058 16.65 16.58 10.370 3.47525 4.91270 31.28 1486.91 1024.062 16.95 16.88 10.373 3.47771 4.91576 31.30 1486.96 1024.080 17.25 17.18 10.372 3.47965 4.91867 31.32 1486.98 1024.097 17.55 17.48 10.369 3.48098 4.92099 31.34 1486.99 1024.112 17.85 17.78 10.368 3.48156 4.92192 31.34 1487.00 1024.118 18.15 18.07 10.366 3.48223 4.92317 31.35 1487.01 1024.126 18.45 18.37 10.366 3.48313 4.92443 31.36 1487.03 1024.135 18.75 18.67 10.370 3.48343 4.92427 31.36 1487.05 1024.135 19.05 18.97 10.369 3.48370 4.92477 31.36 1487.05 1024.139 19.35 19.27 10.368 3.48500 4.92680 31.38 1487.07 1024.151 19.65 19.57 10.367 3.48545 4.92757 31.38 1487.08 1024.157 19.95 19.87 10.366 3.48741 4.93040 31.40 1487.10 1024.174 20.25 20.16 10.362 3.48745 4.93103 31.41 1487.10 1024.179 20.55 20.46 10.358 3.48760 4.93185 31.41 1487.09 1024.185 20.85 20.76 10.359 3.48656 4.93028 31.40 1487.09 1024.177 21.15 21.06 10.355 3.48836 4.93339 31.42 1487.10 1024.196 21.45 21.36 10.349 3.48896 4.93507 31.43 1487.10 1024.207 21.75 21.66 10.348 3.48973 4.93620 31.44 1487.11 1024.215 22.05 21.96 10.345 3.49164 4.93939 31.46 1487.13 1024.234 22.35 22.25 10.339 3.49200 4.94069 31.47 1487.13 1024.242 22.65 22.55 10.334 3.49313 4.94300 31.49 1487.13 1024.257 22.95 22.85 10.338 3.49332 4.94272 31.48 1487.15 1024.256 23.25 23.15 10.339 3.49456 4.94439 31.50 1487.17 1024.267 23.55 23.45 10.336 3.49635 4.94734 31.52 1487.19 1024.284 23.85 23.75 10.337 3.49774 4.94911 31.53 1487.22 1024.295 24.15 24.05 10.337 3.49784 4.94921 31.53 1487.22 1024.297 24.45 24.34 10.338 3.49846 4.94998 31.53 1487.24 1024.303 24.75 24.64 10.338 3.49855 4.95011 31.54 1487.24 1024.305 25.05 24.94 10.337 3.49901 4.95087 31.54 1487.25 1024.310 25.35 25.24 10.334 3.49966 4.95227 31.55 1487.26 1024.319 25.65 25.54 10.328 3.49864 4.95159 31.54 1487.23 1024.317 25.95 25.84 10.319 3.49900 4.95338 31.56 1487.22 1024.329 26.25 26.14 10.320 3.49942 4.95386 31.56 1487.23 1024.333 26.55 26.43 10.322 3.49960 4.95387 31.56 1487.24 1024.334 26.85 26.73 10.323 3.49972 4.95382 31.56 1487.25 1024.335 27.15 27.03 10.323 3.50112 4.95585 31.57 1487.27 1024.347 27.45 27.33 10.323 3.50184 4.95685 31.58 1487.29 1024.354 27.75 27.63 10.323 3.50176 4.95681 31.58 1487.29 1024.355 28.05 27.93 10.321 3.50273 4.95846 31.59 1487.30 1024.366 28.35 28.23 10.322 3.50288 4.95847 31.59 1487.31 1024.367 28.65 28.52 10.323 3.50395 4.95990 31.60 1487.33 1024.376 28.95 28.82 10.322 3.50438 4.96058 31.61 1487.34 1024.381 29.25 29.12 10.321 3.50419 4.96050 31.60 1487.34 1024.382 29.55 29.42 10.321 3.50438 4.96083 31.61 1487.35 1024.385 29.85 29.72 10.318 3.50499 4.96203 31.61 1487.35 1024.393 30.15 30.02 10.316 3.50504 4.96238 31.62 1487.35 1024.396 30.45 30.32 10.315 3.50559 4.96333 31.62 1487.36 1024.403 30.75 30.61 10.310 3.50492 4.96303 31.62 1487.35 1024.403 31.05 30.91 10.305 3.50572 4.96497 31.63 1487.35 1024.415 31.35 31.21 10.300 3.50518 4.96490 31.63 1487.33 1024.417 31.65 31.51 10.296 3.50507 4.96530 31.63 1487.32 1024.420 31.95 31.81 10.293 3.50483 4.96537 31.63 1487.32 1024.422 32.25 32.11 10.289 3.50504 4.96623 31.64 1487.32 1024.429 32.55 32.41 10.284 3.50445 4.96609 31.64 1487.30 1024.429 32.85 32.70 10.281 3.50515 4.96747 31.65 1487.31 1024.438 33.15 33.00 10.277 3.50479 4.96748 31.65 1487.30 1024.440 33.45 33.30 10.267 3.50465 4.96874 31.65 1487.28 1024.449 33.75 33.60 10.263 3.50593 4.97110 31.67 1487.29 1024.464 34.05 33.90 10.266 3.50655 4.97154 31.67 1487.31 1024.467 34.35 34.20 10.270 3.50684 4.97139 31.67 1487.32 1024.467 34.65 34.49 10.273 3.50681 4.97091 31.67 1487.34 1024.466 34.95 34.79 10.273 3.50772 4.97226 31.68 1487.35 1024.474 35.25 35.09 10.269 3.50765 4.97265 31.68 1487.35 1024.478 35.55 35.39 10.271 3.50844 4.97361 31.69 1487.36 1024.484 35.85 35.69 10.272 3.50869 4.97373 31.69 1487.38 1024.486 36.15 35.99 10.274 3.50866 4.97344 31.69 1487.38 1024.486 36.45 36.28 10.270 3.50848 4.97378 31.69 1487.38 1024.489