*2026/01/16 10:37:52.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/29 18:07:14.000 END TIME : UTC 2025/04/29 18:07:40.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.45 2 Depth metres 0.15 40.4 3 Temperature 'deg C (ITS90)' 9.909 11.135 4 Conductivity S/m 2.54484 3.11189 5 Conductance:Specific S/m 3.52512 4.37374 6 Salinity PSS-78 21.75 27.51 7 Speed:Sound m/s 1476.83 1483.49 8 Density kg/m^3 1016.463 1021.208 $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 : 119 LATITUDE : 49 16.47390 N ! (deg min) LONGITUDE : 125 48.73210 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250429_180714 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 135 135 MERGEHDR 1.3 2026/01/16 10:35:43 135 135 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 135 135 CALIB 12.1 2026/01/16 10:37:16 135 135 CLEAN 5.3 2026/01/16 10:37:52 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:14 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 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 11.135 2.54762 3.52512 21.75 1477.94 1016.463 0.45 0.45 10.766 2.54484 3.55765 21.94 1476.83 1016.671 0.75 0.75 10.353 2.85040 4.03134 25.14 1479.17 1019.217 1.05 1.05 10.299 2.90104 4.10924 25.67 1479.62 1019.639 1.35 1.35 10.161 2.90311 4.12833 25.79 1479.26 1019.753 1.65 1.65 10.093 2.90582 4.14022 25.86 1479.11 1019.823 1.95 1.95 10.075 2.90548 4.14187 25.87 1479.06 1019.835 2.25 2.25 10.001 2.90678 4.15243 25.94 1478.87 1019.898 2.55 2.55 9.922 2.90995 4.16638 26.03 1478.69 1019.980 2.85 2.85 9.909 2.91270 4.17188 26.06 1478.69 1020.011 3.15 3.15 9.952 2.91704 4.17298 26.07 1478.87 1020.016 3.45 3.45 10.038 2.92445 4.17322 26.09 1479.20 1020.012 3.75 3.75 10.066 2.94554 4.20003 26.27 1479.54 1020.155 4.05 4.05 10.086 2.95736 4.21448 26.37 1479.74 1020.232 4.35 4.35 10.124 2.97529 4.23537 26.52 1480.06 1020.343 4.65 4.65 10.198 2.98437 4.23944 26.56 1480.38 1020.361 4.95 4.95 10.273 2.98941 4.23755 26.55 1480.65 1020.346 5.25 5.25 10.330 2.99440 4.23775 26.56 1480.88 1020.344 5.55 5.55 10.375 2.99818 4.23765 26.56 1481.05 1020.341 5.85 5.85 10.397 3.00049 4.23839 26.57 1481.14 1020.345 6.15 6.15 10.418 3.00216 4.23818 26.57 1481.22 1020.343 6.45 6.45 10.448 3.00486 4.23842 26.58 1481.34 1020.343 6.75 6.75 10.470 3.00987 4.24288 26.61 1481.47 1020.367 7.05 7.05 10.491 3.01356 4.24554 26.63 1481.57 1020.381 7.35 7.35 10.513 3.01638 4.24687 26.64 1481.67 1020.387 7.65 7.65 10.529 3.02101 4.25146 26.67 1481.78 1020.412 7.95 7.95 10.535 3.02329 4.25395 26.69 1481.83 1020.426 8.25 8.25 10.531 3.02176 4.25227 26.68 1481.80 1020.419 8.55 8.55 10.530 3.02173 4.25240 26.68 1481.80 1020.421 8.85 8.85 10.527 3.02156 4.25253 26.68 1481.80 1020.423 9.15 9.14 10.524 3.02143 4.25266 26.68 1481.79 1020.425 9.45 9.44 10.524 3.02158 4.25292 26.68 1481.80 1020.428 9.75 9.74 10.522 3.02153 4.25304 26.68 1481.80 1020.430 10.05 10.04 10.522 3.02152 4.25306 26.68 1481.80 1020.432 10.35 10.34 10.521 3.02276 4.25492 26.70 1481.82 1020.443 10.65 10.64 10.521 3.02179 4.25352 26.69 1481.81 1020.437 10.95 10.94 10.522 3.02129 4.25274 26.68 1481.81 1020.434 11.25 11.24 10.523 3.02233 4.25404 26.69 1481.83 1020.442 11.55 11.54 10.527 3.02216 4.25335 26.68 1481.85 1020.439 11.85 11.84 10.530 3.02377 4.25519 26.70 1481.88 1020.450 12.15 12.14 10.533 3.02624 4.25839 26.72 1481.92 1020.468 12.45 12.44 10.535 3.02646 4.25837 26.72 1481.93 1020.469 12.75 12.74 10.542 3.02733 4.25885 26.72 1481.97 1020.473 13.05 13.04 10.546 3.02727 4.25829 26.72 1481.98 1020.471 13.35 13.34 10.550 3.02792 4.25870 26.72 1482.01 1020.474 13.65 13.64 10.554 3.02840 4.25883 26.72 1482.03 1020.475 13.95 13.94 10.559 3.02999 4.26052 26.74 1482.06 1020.485 14.25 14.24 10.561 3.03053 4.26104 26.74 1482.08 1020.489 14.55 14.54 10.563 3.03088 4.26133 26.74 1482.10 1020.492 14.85 14.84 10.566 3.03080 4.26079 26.74 1482.11 1020.490 15.15 15.14 10.568 3.03156 4.26158 26.74 1482.13 1020.495 15.45 15.44 10.570 3.03152 4.26130 26.74 1482.14 1020.495 15.75 15.74 10.574 3.03249 4.26223 26.75 1482.16 1020.501 16.05 16.04 10.575 3.03353 4.26351 26.76 1482.19 1020.509 16.35 16.34 10.580 3.03336 4.26279 26.75 1482.20 1020.506 16.65 16.64 10.581 3.03359 4.26287 26.75 1482.21 1020.508 16.95 16.94 10.585 3.03551 4.26518 26.77 1482.25 1020.521 17.25 17.24 10.589 3.03588 4.26513 26.77 1482.27 1020.522 17.55 17.54 10.592 3.03753 4.26713 26.78 1482.30 1020.534 17.85 17.84 10.594 3.03783 4.26733 26.79 1482.32 1020.536 18.15 18.14 10.596 3.03812 4.26749 26.79 1482.33 1020.538 18.45 18.43 10.597 3.03786 4.26704 26.78 1482.33 1020.536 18.75 18.73 10.596 3.03901 4.26872 26.80 1482.35 1020.547 19.05 19.03 10.597 3.03922 4.26896 26.80 1482.36 1020.549 19.35 19.33 10.598 3.03899 4.26853 26.79 1482.36 1020.548 19.65 19.63 10.600 3.04021 4.26991 26.80 1482.39 1020.557 19.95 19.93 10.605 3.04095 4.27043 26.81 1482.41 1020.561 20.25 20.23 10.609 3.04308 4.27296 26.83 1482.45 1020.575 20.55 20.53 10.611 3.04310 4.27269 26.82 1482.47 1020.575 20.85 20.83 10.614 3.04511 4.27514 26.84 1482.50 1020.589 21.15 21.13 10.617 3.04644 4.27662 26.85 1482.53 1020.598 21.45 21.43 10.619 3.04812 4.27881 26.87 1482.56 1020.611 21.75 21.73 10.619 3.04881 4.27970 26.87 1482.58 1020.617 22.05 22.03 10.621 3.05011 4.28132 26.88 1482.60 1020.627 22.35 22.33 10.621 3.05047 4.28184 26.89 1482.61 1020.631 22.65 22.63 10.620 3.05104 4.28272 26.89 1482.62 1020.637 22.95 22.93 10.621 3.05163 4.28352 26.90 1482.63 1020.643 23.25 23.23 10.619 3.05290 4.28550 26.91 1482.65 1020.655 23.55 23.53 10.617 3.05483 4.28841 26.93 1482.67 1020.672 23.85 23.83 10.616 3.05479 4.28850 26.93 1482.67 1020.674 24.15 24.13 10.614 3.05632 4.29085 26.95 1482.69 1020.688 24.45 24.43 10.613 3.05724 4.29230 26.96 1482.70 1020.697 24.75 24.73 10.612 3.05807 4.29358 26.97 1482.71 1020.705 25.05 25.03 10.611 3.05907 4.29518 26.98 1482.72 1020.715 25.35 25.33 10.609 3.05935 4.29579 26.98 1482.73 1020.720 25.65 25.63 10.606 3.06145 4.29906 27.00 1482.75 1020.739 25.95 25.93 10.606 3.06128 4.29884 27.00 1482.75 1020.739 26.25 26.23 10.605 3.06177 4.29968 27.01 1482.76 1020.745 26.55 26.53 10.603 3.06229 4.30064 27.01 1482.77 1020.752 26.85 26.82 10.602 3.06297 4.30174 27.02 1482.77 1020.759 27.15 27.12 10.599 3.06387 4.30336 27.03 1482.78 1020.769 27.45 27.42 10.595 3.06468 4.30494 27.04 1482.79 1020.779 27.75 27.72 10.589 3.06380 4.30440 27.04 1482.76 1020.778 28.05 28.02 10.587 3.06258 4.30293 27.03 1482.75 1020.772 28.35 28.32 10.588 3.06262 4.30287 27.03 1482.76 1020.773 28.65 28.62 10.587 3.06489 4.30620 27.05 1482.79 1020.792 28.95 28.92 10.586 3.06865 4.31165 27.09 1482.83 1020.823 29.25 29.22 10.589 3.07190 4.31585 27.12 1482.88 1020.846 29.55 29.52 10.594 3.07210 4.31550 27.12 1482.90 1020.846 29.85 29.82 10.596 3.07323 4.31678 27.12 1482.93 1020.853 30.15 30.12 10.598 3.07568 4.32004 27.15 1482.97 1020.872 30.45 30.42 10.595 3.07851 4.32437 27.18 1483.00 1020.897 30.75 30.72 10.591 3.07853 4.32481 27.18 1482.99 1020.901 31.05 31.02 10.593 3.07890 4.32510 27.18 1483.01 1020.904 31.35 31.32 10.593 3.08075 4.32769 27.20 1483.03 1020.919 31.65 31.62 10.592 3.08281 4.33073 27.22 1483.06 1020.937 31.95 31.92 10.591 3.08445 4.33320 27.24 1483.08 1020.951 32.25 32.22 10.591 3.08486 4.33373 27.24 1483.09 1020.956 32.55 32.52 10.592 3.08737 4.33722 27.26 1483.12 1020.976 32.85 32.82 10.593 3.08896 4.33933 27.28 1483.15 1020.988 33.15 33.12 10.594 3.08913 4.33945 27.28 1483.16 1020.990 33.45 33.42 10.593 3.09208 4.34372 27.31 1483.20 1021.015 33.75 33.71 10.592 3.09228 4.34407 27.31 1483.20 1021.018 34.05 34.01 10.592 3.09222 4.34399 27.31 1483.21 1021.019 34.35 34.31 10.591 3.09234 4.34427 27.31 1483.21 1021.021 34.65 34.61 10.590 3.09283 4.34508 27.32 1483.22 1021.027 34.95 34.91 10.589 3.09276 4.34508 27.32 1483.22 1021.029 35.25 35.21 10.589 3.09429 4.34724 27.33 1483.24 1021.041 35.55 35.51 10.588 3.09372 4.34652 27.33 1483.24 1021.039 35.85 35.81 10.588 3.09348 4.34624 27.33 1483.24 1021.039 36.15 36.11 10.588 3.09465 4.34787 27.34 1483.26 1021.049 36.45 36.41 10.588 3.09537 4.34894 27.34 1483.27 1021.056 36.75 36.71 10.588 3.09547 4.34908 27.35 1483.28 1021.058 37.05 37.01 10.589 3.09711 4.35124 27.36 1483.30 1021.071 37.35 37.31 10.591 3.09829 4.35268 27.37 1483.33 1021.080 37.65 37.61 10.590 3.09980 4.35491 27.39 1483.35 1021.093 37.95 37.91 10.587 3.10118 4.35714 27.40 1483.36 1021.107 38.25 38.21 10.581 3.10161 4.35856 27.41 1483.35 1021.116 38.55 38.51 10.576 3.10154 4.35902 27.41 1483.35 1021.120 38.85 38.81 10.575 3.10392 4.36247 27.44 1483.38 1021.140 39.15 39.11 10.576 3.10552 4.36465 27.45 1483.40 1021.153 39.45 39.41 10.577 3.10773 4.36766 27.47 1483.43 1021.171 39.75 39.70 10.576 3.10935 4.37005 27.49 1483.46 1021.185 40.05 40.00 10.574 3.11141 4.37316 27.51 1483.48 1021.203 40.45 40.40 10.575 3.11189 4.37374 27.51 1483.49 1021.208