*2026/01/16 10:37:48.10 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 20:43:39.000 END TIME : UTC 2025/02/19 20:44:02.800 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 35.7 2 Depth metres 0.15 35.54 3 Temperature 'deg C (ITS90)' 8.796 9.546 4 Conductivity S/m 2.77361 3.44767 5 Conductance:Specific S/m 4.10349 4.99422 6 Salinity PSS-78 25.48 31.74 7 Speed:Sound m/s 1473.76 1484.68 8 Density kg/m^3 1019.701 1024.645 $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 : 53 LATITUDE : 49 38.29500 N ! (deg min) LONGITUDE : 126 21.37840 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_204339 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 120 120 MERGEHDR 1.3 2026/01/16 10:35:39 120 120 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 120 120 CALIB 12.1 2026/01/16 10:37:11 120 120 CLEAN 5.3 2026/01/16 10:37:48 120 120 $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 10:37:11 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 8.796 2.77361 4.10349 25.48 1473.76 1019.701 0.45 0.45 8.952 2.91935 4.29923 26.84 1476.02 1020.743 0.75 0.75 9.044 3.02605 4.44426 27.85 1477.61 1021.521 1.05 1.05 9.110 3.07351 4.50534 28.28 1478.38 1021.850 1.35 1.35 9.134 3.09662 4.53595 28.49 1478.74 1022.015 1.65 1.65 9.152 3.14359 4.60232 28.96 1479.38 1022.376 1.95 1.95 9.170 3.18165 4.65569 29.33 1479.91 1022.667 2.25 2.24 9.170 3.19507 4.67520 29.47 1480.08 1022.774 2.55 2.54 9.206 3.20919 4.69097 29.58 1480.36 1022.860 2.85 2.84 9.264 3.21926 4.69770 29.64 1480.65 1022.895 3.15 3.14 9.300 3.22415 4.69986 29.66 1480.81 1022.906 3.45 3.44 9.323 3.22866 4.70342 29.68 1480.93 1022.925 3.75 3.74 9.337 3.22959 4.70275 29.68 1480.99 1022.922 4.05 4.04 9.348 3.23235 4.70528 29.70 1481.06 1022.937 4.35 4.34 9.361 3.25605 4.73803 29.93 1481.39 1023.116 4.65 4.64 9.372 3.28263 4.77521 30.19 1481.75 1023.320 4.95 4.94 9.367 3.30992 4.81560 30.47 1482.09 1023.542 5.25 5.23 9.362 3.31630 4.82551 30.54 1482.16 1023.598 5.55 5.53 9.358 3.32398 4.83723 30.62 1482.25 1023.664 5.85 5.83 9.362 3.32928 4.84447 30.67 1482.33 1023.705 6.15 6.13 9.362 3.33118 4.84720 30.69 1482.36 1023.721 6.45 6.43 9.362 3.33582 4.85393 30.74 1482.42 1023.759 6.75 6.73 9.357 3.33924 4.85966 30.78 1482.45 1023.792 7.05 7.03 9.362 3.34282 4.86417 30.81 1482.52 1023.818 7.35 7.32 9.365 3.34489 4.86667 30.83 1482.56 1023.833 7.65 7.62 9.368 3.34562 4.86736 30.84 1482.58 1023.838 7.95 7.92 9.372 3.34901 4.87174 30.87 1482.63 1023.863 8.25 8.22 9.378 3.36187 4.88961 30.99 1482.81 1023.962 8.55 8.52 9.381 3.37333 4.90581 31.11 1482.97 1024.052 8.85 8.82 9.383 3.38258 4.91897 31.20 1483.10 1024.125 9.15 9.12 9.389 3.38559 4.92243 31.22 1483.16 1024.145 9.45 9.42 9.392 3.38797 4.92547 31.25 1483.20 1024.163 9.75 9.71 9.393 3.38988 4.92809 31.26 1483.23 1024.178 10.05 10.01 9.395 3.39441 4.93441 31.31 1483.30 1024.214 10.35 10.31 9.399 3.39633 4.93673 31.33 1483.33 1024.228 10.65 10.61 9.399 3.39685 4.93747 31.33 1483.35 1024.234 10.95 10.91 9.397 3.39718 4.93819 31.34 1483.35 1024.239 11.25 11.21 9.395 3.39757 4.93905 31.34 1483.35 1024.245 11.55 11.51 9.393 3.39785 4.93970 31.35 1483.36 1024.250 11.85 11.80 9.393 3.39785 4.93975 31.35 1483.36 1024.251 12.15 12.10 9.393 3.39882 4.94110 31.36 1483.38 1024.260 12.45 12.40 9.394 3.39908 4.94133 31.36 1483.39 1024.263 12.75 12.70 9.397 3.40006 4.94232 31.36 1483.42 1024.269 13.05 13.00 9.400 3.40080 4.94300 31.37 1483.44 1024.274 13.35 13.30 9.401 3.40171 4.94413 31.38 1483.46 1024.281 13.65 13.60 9.402 3.40178 4.94416 31.38 1483.46 1024.283 13.95 13.89 9.402 3.40182 4.94420 31.38 1483.47 1024.284 14.25 14.19 9.403 3.40269 4.94529 31.38 1483.49 1024.292 14.55 14.49 9.404 3.40320 4.94599 31.39 1483.50 1024.297 14.85 14.79 9.406 3.40296 4.94534 31.39 1483.51 1024.294 15.15 15.09 9.406 3.40386 4.94655 31.39 1483.52 1024.302 15.45 15.39 9.406 3.40379 4.94646 31.39 1483.53 1024.303 15.75 15.69 9.407 3.40464 4.94758 31.40 1483.55 1024.310 16.05 15.98 9.408 3.40510 4.94811 31.40 1483.56 1024.314 16.35 16.28 9.410 3.40597 4.94908 31.41 1483.58 1024.321 16.65 16.58 9.410 3.40645 4.94974 31.42 1483.59 1024.326 16.95 16.88 9.400 3.40581 4.95034 31.42 1483.56 1024.331 17.25 17.18 9.383 3.40587 4.95286 31.43 1483.52 1024.347 17.55 17.48 9.376 3.40574 4.95373 31.44 1483.51 1024.353 17.85 17.77 9.372 3.40568 4.95414 31.44 1483.50 1024.357 18.15 18.07 9.368 3.40759 4.95744 31.46 1483.52 1024.377 18.45 18.37 9.364 3.40792 4.95858 31.47 1483.52 1024.384 18.75 18.67 9.366 3.40988 4.96112 31.49 1483.55 1024.400 19.05 18.97 9.370 3.41086 4.96192 31.50 1483.58 1024.405 19.35 19.27 9.375 3.41050 4.96070 31.49 1483.59 1024.399 19.65 19.57 9.376 3.41091 4.96118 31.49 1483.60 1024.403 19.95 19.86 9.375 3.41157 4.96231 31.50 1483.61 1024.411 20.25 20.16 9.375 3.41233 4.96333 31.51 1483.63 1024.418 20.55 20.46 9.381 3.41287 4.96337 31.51 1483.66 1024.419 20.85 20.76 9.385 3.41269 4.96241 31.50 1483.67 1024.415 21.15 21.06 9.394 3.41321 4.96190 31.50 1483.70 1024.412 21.45 21.36 9.403 3.41946 4.96971 31.55 1483.81 1024.456 21.75 21.66 9.438 3.42289 4.96961 31.56 1483.95 1024.455 22.05 21.95 9.463 3.42665 4.97153 31.57 1484.07 1024.466 22.35 22.25 9.478 3.42974 4.97387 31.59 1484.15 1024.479 22.65 22.55 9.485 3.43101 4.97459 31.60 1484.19 1024.484 22.95 22.85 9.488 3.43113 4.97437 31.60 1484.20 1024.484 23.25 23.15 9.488 3.43108 4.97429 31.60 1484.21 1024.485 23.55 23.45 9.489 3.43088 4.97391 31.59 1484.21 1024.484 23.85 23.75 9.490 3.43086 4.97369 31.59 1484.22 1024.484 24.15 24.04 9.491 3.43145 4.97448 31.60 1484.23 1024.489 24.45 24.34 9.493 3.43119 4.97376 31.59 1484.24 1024.487 24.75 24.64 9.496 3.43173 4.97409 31.60 1484.26 1024.490 25.05 24.94 9.497 3.43241 4.97488 31.60 1484.28 1024.495 25.35 25.24 9.498 3.43334 4.97613 31.61 1484.29 1024.503 25.65 25.54 9.504 3.43296 4.97473 31.60 1484.31 1024.496 25.95 25.83 9.513 3.43395 4.97484 31.60 1484.35 1024.498 26.25 26.13 9.529 3.43807 4.97852 31.63 1484.45 1024.518 26.55 26.43 9.535 3.44127 4.98234 31.66 1484.51 1024.540 26.85 26.73 9.540 3.44168 4.98212 31.66 1484.53 1024.540 27.15 27.03 9.546 3.44201 4.98171 31.66 1484.56 1024.539 27.45 27.33 9.546 3.44110 4.98052 31.65 1484.55 1024.534 27.75 27.63 9.535 3.43923 4.97938 31.64 1484.50 1024.529 28.05 27.92 9.525 3.43838 4.97950 31.64 1484.47 1024.532 28.35 28.22 9.523 3.43890 4.98066 31.64 1484.47 1024.539 28.65 28.52 9.521 3.43822 4.97986 31.64 1484.47 1024.536 28.95 28.82 9.521 3.43859 4.98044 31.64 1484.48 1024.541 29.25 29.12 9.520 3.43824 4.98008 31.64 1484.47 1024.540 29.55 29.42 9.519 3.43846 4.98056 31.64 1484.48 1024.544 29.85 29.71 9.517 3.43852 4.98085 31.64 1484.48 1024.547 30.15 30.01 9.518 3.43912 4.98160 31.65 1484.49 1024.552 30.45 30.31 9.518 3.43921 4.98176 31.65 1484.50 1024.555 30.75 30.61 9.516 3.43868 4.98134 31.65 1484.49 1024.554 31.05 30.91 9.514 3.43854 4.98136 31.65 1484.49 1024.555 31.35 31.21 9.511 3.43857 4.98181 31.65 1484.49 1024.559 31.65 31.51 9.511 3.43857 4.98189 31.65 1484.49 1024.561 31.95 31.80 9.510 3.43875 4.98221 31.65 1484.50 1024.564 32.25 32.10 9.510 3.43840 4.98176 31.65 1484.50 1024.562 32.55 32.40 9.509 3.43918 4.98299 31.66 1484.51 1024.571 32.85 32.70 9.514 3.44040 4.98409 31.67 1484.54 1024.578 33.15 33.00 9.517 3.44084 4.98433 31.67 1484.56 1024.580 33.45 33.30 9.516 3.44206 4.98615 31.68 1484.58 1024.591 33.75 33.59 9.522 3.44476 4.98927 31.70 1484.63 1024.610 34.05 33.89 9.523 3.44530 4.98986 31.71 1484.65 1024.614 34.35 34.19 9.523 3.44603 4.99089 31.71 1484.66 1024.621 34.65 34.49 9.521 3.44667 4.99220 31.72 1484.67 1024.630 34.95 34.79 9.520 3.44746 4.99348 31.73 1484.68 1024.638 35.25 35.09 9.519 3.44763 4.99378 31.73 1484.68 1024.641 35.55 35.39 9.517 3.44767 4.99422 31.74 1484.68 1024.645 35.70 35.54 9.515 3.44718 4.99371 31.73 1484.67 1024.643