*2026/01/16 09:57:56.83 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 23:06:22.000 END TIME : UTC 2024/10/17 23:06:49.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 137 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.89 2 Depth metres 0.15 40.7 3 Temperature 'deg C (ITS90)' 10.263 12.889 4 Conductivity S/m 3.39137 3.54527 5 Conductance:Specific S/m 4.48357 5.01042 6 Salinity PSS-78 28.5 31.95 7 Speed:Sound m/s 1487.68 1492.21 8 Density kg/m^3 1021.402 1024.709 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 293 LATITUDE : 48 56.29550 N ! (deg min) LONGITUDE : 125 5.79400 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_230622 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 137 137 MERGEHDR 1.3 2026/01/16 09:54:10 137 137 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 137 137 CALIB 12.1 2026/01/16 09:56:58 137 137 CLEAN 5.3 2026/01/16 09:57:56 137 137 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 09:57:46 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 12.889 3.40437 4.49251 28.57 1492.21 1021.440 0.45 0.45 12.820 3.39137 4.48357 28.50 1491.90 1021.402 0.75 0.75 12.852 3.40450 4.49708 28.60 1492.13 1021.472 1.05 1.05 12.839 3.40406 4.49814 28.61 1492.10 1021.481 1.35 1.35 12.789 3.40158 4.50078 28.62 1491.95 1021.503 1.65 1.65 12.717 3.40406 4.51261 28.70 1491.80 1021.577 1.95 1.95 12.581 3.43242 4.56665 29.07 1491.78 1021.890 2.25 2.25 12.445 3.47096 4.63480 29.54 1491.87 1022.279 2.55 2.54 12.281 3.51111 4.70896 30.05 1491.92 1022.706 2.85 2.84 12.145 3.53414 4.75720 30.37 1491.85 1022.987 3.15 3.14 11.976 3.54110 4.78837 30.58 1491.52 1023.177 3.45 3.44 11.759 3.54258 4.81868 30.77 1491.00 1023.368 3.75 3.74 11.617 3.54490 4.84057 30.91 1490.68 1023.504 4.05 4.04 11.542 3.54494 4.85051 30.98 1490.49 1023.567 4.35 4.34 11.365 3.54490 4.87405 31.12 1490.06 1023.715 4.65 4.64 11.211 3.54527 4.89531 31.26 1489.68 1023.847 4.95 4.93 11.140 3.54447 4.90385 31.31 1489.50 1023.902 5.25 5.23 11.063 3.54454 4.91431 31.38 1489.31 1023.968 5.55 5.53 11.017 3.54426 4.92031 31.41 1489.20 1024.006 5.85 5.83 10.986 3.54479 4.92522 31.44 1489.13 1024.037 6.15 6.13 10.966 3.54456 4.92771 31.46 1489.08 1024.054 6.45 6.43 10.955 3.54425 4.92879 31.47 1489.06 1024.062 6.75 6.73 10.939 3.54484 4.93171 31.48 1489.03 1024.080 7.05 7.03 10.915 3.54491 4.93510 31.51 1488.98 1024.102 7.35 7.32 10.888 3.54440 4.93808 31.52 1488.91 1024.122 7.65 7.62 10.855 3.54452 4.94282 31.55 1488.83 1024.152 7.95 7.92 10.827 3.54403 4.94599 31.57 1488.76 1024.174 8.25 8.22 10.815 3.54414 4.94786 31.58 1488.73 1024.186 8.55 8.52 10.806 3.54443 4.94943 31.59 1488.72 1024.197 8.85 8.82 10.797 3.54388 4.94999 31.60 1488.70 1024.202 9.15 9.12 10.787 3.54352 4.95087 31.60 1488.67 1024.209 9.45 9.41 10.777 3.54331 4.95196 31.61 1488.65 1024.217 9.75 9.71 10.764 3.54279 4.95306 31.61 1488.61 1024.225 10.05 10.01 10.753 3.54162 4.95290 31.61 1488.58 1024.227 10.35 10.31 10.743 3.54177 4.95443 31.62 1488.56 1024.237 10.65 10.61 10.730 3.54187 4.95646 31.63 1488.53 1024.250 10.95 10.91 10.717 3.54119 4.95725 31.64 1488.50 1024.257 11.25 11.21 10.705 3.54196 4.96009 31.66 1488.48 1024.275 11.55 11.50 10.696 3.54118 4.96018 31.66 1488.45 1024.278 11.85 11.80 10.683 3.54108 4.96189 31.67 1488.42 1024.289 12.15 12.10 10.671 3.54152 4.96418 31.68 1488.40 1024.304 12.45 12.40 10.662 3.54059 4.96412 31.68 1488.37 1024.306 12.75 12.70 10.652 3.53991 4.96458 31.68 1488.34 1024.310 13.05 13.00 10.640 3.54011 4.96642 31.69 1488.32 1024.323 13.35 13.30 10.627 3.54004 4.96826 31.70 1488.29 1024.335 13.65 13.59 10.616 3.53928 4.96865 31.70 1488.26 1024.339 13.95 13.89 10.612 3.53874 4.96842 31.70 1488.25 1024.340 14.25 14.19 10.605 3.53851 4.96912 31.71 1488.23 1024.345 14.55 14.49 10.594 3.53819 4.97025 31.71 1488.21 1024.354 14.85 14.79 10.586 3.53869 4.97197 31.72 1488.20 1024.365 15.15 15.09 10.581 3.53872 4.97277 31.73 1488.19 1024.371 15.45 15.39 10.577 3.53873 4.97331 31.73 1488.19 1024.376 15.75 15.68 10.575 3.53857 4.97333 31.73 1488.18 1024.377 16.05 15.98 10.575 3.53842 4.97316 31.73 1488.19 1024.377 16.35 16.28 10.573 3.53853 4.97361 31.73 1488.19 1024.381 16.65 16.58 10.568 3.53869 4.97449 31.74 1488.18 1024.388 16.95 16.88 10.564 3.53885 4.97532 31.74 1488.18 1024.394 17.25 17.18 10.562 3.53883 4.97553 31.75 1488.18 1024.397 17.55 17.48 10.560 3.53836 4.97521 31.74 1488.17 1024.396 17.85 17.77 10.556 3.53829 4.97562 31.75 1488.17 1024.400 18.15 18.07 10.552 3.53814 4.97605 31.75 1488.16 1024.404 18.45 18.37 10.549 3.53767 4.97577 31.75 1488.15 1024.404 18.75 18.67 10.544 3.53830 4.97731 31.76 1488.15 1024.414 19.05 18.97 10.541 3.53887 4.97858 31.76 1488.15 1024.423 19.35 19.27 10.538 3.53891 4.97902 31.77 1488.15 1024.427 19.65 19.56 10.531 3.53871 4.97973 31.77 1488.14 1024.432 19.95 19.86 10.524 3.53897 4.98107 31.78 1488.13 1024.441 20.25 20.16 10.520 3.53853 4.98110 31.78 1488.11 1024.443 20.55 20.46 10.511 3.53798 4.98159 31.78 1488.09 1024.448 20.85 20.76 10.502 3.53672 4.98106 31.78 1488.06 1024.447 21.15 21.06 10.493 3.53716 4.98294 31.79 1488.04 1024.459 21.45 21.36 10.485 3.53675 4.98346 31.79 1488.03 1024.464 21.75 21.65 10.474 3.53630 4.98431 31.80 1488.00 1024.471 22.05 21.95 10.462 3.53579 4.98528 31.80 1487.97 1024.478 22.35 22.25 10.454 3.53566 4.98632 31.81 1487.95 1024.486 22.65 22.55 10.447 3.53498 4.98624 31.81 1487.93 1024.487 22.95 22.85 10.436 3.53431 4.98691 31.81 1487.90 1024.493 23.25 23.15 10.425 3.53500 4.98936 31.82 1487.88 1024.508 23.55 23.45 10.423 3.53530 4.99009 31.83 1487.89 1024.514 23.85 23.74 10.424 3.53526 4.98986 31.83 1487.89 1024.514 24.15 24.04 10.422 3.53481 4.98956 31.83 1487.89 1024.514 24.45 24.34 10.419 3.53504 4.99039 31.83 1487.88 1024.520 24.75 24.64 10.411 3.53470 4.99089 31.83 1487.87 1024.524 25.05 24.94 10.401 3.53480 4.99248 31.84 1487.85 1024.535 25.35 25.24 10.398 3.53547 4.99396 31.85 1487.85 1024.545 25.65 25.54 10.396 3.53538 4.99410 31.85 1487.85 1024.547 25.95 25.83 10.391 3.53518 4.99440 31.85 1487.84 1024.550 26.25 26.13 10.385 3.53546 4.99567 31.86 1487.83 1024.559 26.55 26.43 10.381 3.53514 4.99575 31.86 1487.83 1024.561 26.85 26.73 10.379 3.53499 4.99590 31.86 1487.82 1024.563 27.15 27.03 10.370 3.53506 4.99728 31.87 1487.81 1024.573 27.45 27.33 10.367 3.53482 4.99741 31.87 1487.80 1024.575 27.75 27.62 10.363 3.53441 4.99731 31.87 1487.79 1024.576 28.05 27.92 10.360 3.53441 4.99778 31.87 1487.79 1024.580 28.35 28.22 10.357 3.53449 4.99831 31.88 1487.78 1024.584 28.65 28.52 10.357 3.53493 4.99893 31.88 1487.79 1024.589 28.95 28.82 10.354 3.53442 4.99859 31.88 1487.79 1024.589 29.25 29.12 10.351 3.53443 4.99899 31.88 1487.78 1024.592 29.55 29.42 10.350 3.53450 4.99932 31.88 1487.79 1024.595 29.85 29.71 10.349 3.53462 4.99966 31.89 1487.79 1024.599 30.15 30.01 10.347 3.53419 4.99927 31.88 1487.78 1024.598 30.45 30.31 10.345 3.53416 4.99946 31.88 1487.78 1024.600 30.75 30.61 10.345 3.53485 5.00056 31.89 1487.80 1024.608 31.05 30.91 10.345 3.53441 4.99989 31.89 1487.80 1024.605 31.35 31.21 10.344 3.53456 5.00027 31.89 1487.80 1024.609 31.65 31.50 10.344 3.53442 5.00002 31.89 1487.80 1024.608 31.95 31.80 10.342 3.53420 4.99994 31.89 1487.80 1024.609 32.25 32.10 10.342 3.53448 5.00037 31.89 1487.81 1024.613 32.55 32.40 10.340 3.53407 5.00014 31.89 1487.80 1024.613 32.85 32.70 10.336 3.53415 5.00077 31.89 1487.80 1024.618 33.15 33.00 10.334 3.53428 5.00118 31.89 1487.80 1024.622 33.45 33.30 10.333 3.53445 5.00159 31.90 1487.81 1024.625 33.75 33.59 10.333 3.53400 5.00101 31.89 1487.80 1024.624 34.05 33.89 10.330 3.53410 5.00150 31.89 1487.80 1024.628 34.35 34.19 10.328 3.53418 5.00194 31.90 1487.80 1024.631 34.65 34.49 10.324 3.53412 5.00244 31.90 1487.80 1024.636 34.95 34.79 10.314 3.53434 5.00419 31.91 1487.78 1024.647 35.25 35.09 10.302 3.53447 5.00605 31.92 1487.76 1024.660 35.55 35.39 10.296 3.53405 5.00631 31.92 1487.74 1024.663 35.85 35.68 10.290 3.53347 5.00636 31.92 1487.72 1024.665 36.15 35.98 10.282 3.53383 5.00794 31.93 1487.71 1024.675 36.45 36.28 10.273 3.53324 5.00839 31.93 1487.69 1024.680 36.75 36.58 10.267 3.53341 5.00949 31.94 1487.68 1024.688 37.05 36.88 10.270 3.53288 5.00831 31.93 1487.68 1024.682 37.35 37.18 10.268 3.53332 5.00931 31.94 1487.69 1024.689 37.65 37.47 10.268 3.53309 5.00898 31.94 1487.69 1024.688 37.95 37.77 10.266 3.53287 5.00887 31.94 1487.69 1024.689 38.25 38.07 10.266 3.53285 5.00893 31.94 1487.69 1024.691 38.55 38.37 10.265 3.53304 5.00922 31.94 1487.70 1024.694 38.85 38.67 10.265 3.53375 5.01027 31.95 1487.71 1024.701 39.15 38.97 10.264 3.53307 5.00943 31.94 1487.70 1024.698 39.45 39.26 10.265 3.53309 5.00927 31.94 1487.71 1024.698 39.75 39.56 10.264 3.53320 5.00963 31.94 1487.72 1024.701 40.05 39.86 10.263 3.53365 5.01042 31.95 1487.72 1024.707 40.35 40.16 10.264 3.53291 5.00924 31.94 1487.72 1024.702 40.65 40.46 10.263 3.53302 5.00956 31.94 1487.72 1024.705 40.89 40.70 10.263 3.53339 5.01011 31.94 1487.73 1024.709