*2026/01/16 10:37:57.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 23:23:29.000 END TIME : UTC 2025/06/26 23:23:52.800 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 35.86 2 Depth metres 0.15 35.69 3 Temperature 'deg C (ITS90)' 9.406 14.823 4 Conductivity S/m 3.44742 3.54264 5 Conductance:Specific S/m 4.36282 5.01593 6 Salinity PSS-78 27.79 31.91 7 Speed:Sound m/s 1484.39 1497.73 8 Density kg/m^3 1020.462 1024.758 $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 : 212 LATITUDE : 48 52.91950 N ! (deg min) LONGITUDE : 125 4.53140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_232329 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 120 120 MERGEHDR 1.3 2026/01/16 10:35:48 120 120 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:51 120 120 CALIB 12.1 2026/01/16 10:37:21 120 120 CLEAN 5.3 2026/01/16 10:37:57 120 120 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:21 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 14.823 3.47486 4.36282 27.79 1497.73 1020.462 0.45 0.45 14.649 3.46611 4.37099 27.84 1497.22 1020.535 0.75 0.75 14.463 3.47779 4.40642 28.08 1496.90 1020.757 1.05 1.05 14.192 3.48453 4.44547 28.34 1496.31 1021.011 1.35 1.35 13.922 3.49798 4.49355 28.66 1495.80 1021.313 1.65 1.65 13.669 3.50506 4.53212 28.91 1495.26 1021.560 1.95 1.95 13.578 3.52195 4.56470 29.13 1495.23 1021.752 2.25 2.25 13.453 3.53581 4.59762 29.36 1495.08 1021.950 2.55 2.55 13.186 3.54264 4.63861 29.63 1494.51 1022.211 2.85 2.84 12.925 3.54224 4.67000 29.83 1493.87 1022.417 3.15 3.14 12.558 3.53841 4.71056 30.08 1492.93 1022.685 3.45 3.44 12.292 3.53191 4.73551 30.23 1492.20 1022.854 3.75 3.74 12.001 3.52733 4.76652 30.43 1491.43 1023.057 4.05 4.04 11.815 3.52380 4.78583 30.55 1490.93 1023.184 4.35 4.34 11.665 3.52191 4.80286 30.65 1490.54 1023.294 4.65 4.64 11.451 3.51866 4.82654 30.80 1489.97 1023.446 4.95 4.94 11.262 3.51735 4.84995 30.94 1489.49 1023.594 5.25 5.24 11.086 3.51473 4.86989 31.06 1489.02 1023.721 5.55 5.53 10.917 3.51408 4.89195 31.20 1488.59 1023.858 5.85 5.83 10.806 3.50520 4.89466 31.21 1488.21 1023.883 6.15 6.13 10.737 3.49892 4.89542 31.20 1487.96 1023.895 6.45 6.43 10.653 3.49565 4.90237 31.24 1487.72 1023.941 6.75 6.73 10.587 3.49533 4.91092 31.30 1487.55 1023.994 7.05 7.03 10.523 3.49475 4.91898 31.34 1487.39 1024.045 7.35 7.33 10.464 3.49473 4.92716 31.40 1487.24 1024.096 7.65 7.63 10.415 3.49428 4.93332 31.43 1487.12 1024.134 7.95 7.92 10.378 3.49238 4.93580 31.45 1487.00 1024.152 8.25 8.22 10.349 3.49137 4.93843 31.46 1486.92 1024.170 8.55 8.52 10.322 3.48895 4.93871 31.46 1486.83 1024.175 8.85 8.82 10.302 3.48773 4.93990 31.47 1486.77 1024.184 9.15 9.12 10.278 3.48628 4.94116 31.47 1486.69 1024.194 9.45 9.42 10.232 3.48521 4.94608 31.50 1486.57 1024.225 9.75 9.72 10.203 3.48170 4.94521 31.49 1486.45 1024.224 10.05 10.01 10.188 3.48050 4.94564 31.49 1486.41 1024.229 10.35 10.31 10.168 3.47821 4.94516 31.49 1486.33 1024.229 10.65 10.61 10.136 3.47873 4.95036 31.52 1486.26 1024.261 10.95 10.91 10.099 3.47837 4.95512 31.55 1486.17 1024.291 11.25 11.21 10.068 3.47544 4.95531 31.54 1486.06 1024.295 11.55 11.51 10.051 3.47421 4.95596 31.55 1486.00 1024.301 11.85 11.81 10.035 3.47362 4.95735 31.55 1485.96 1024.311 12.15 12.10 10.012 3.47244 4.95889 31.56 1485.89 1024.322 12.45 12.40 9.988 3.47080 4.95993 31.57 1485.82 1024.331 12.75 12.70 9.971 3.47030 4.96168 31.58 1485.77 1024.343 13.05 13.00 9.961 3.46818 4.96002 31.56 1485.72 1024.335 13.35 13.30 9.950 3.46700 4.95999 31.56 1485.68 1024.337 13.65 13.60 9.937 3.46669 4.96138 31.57 1485.65 1024.347 13.95 13.90 9.923 3.46760 4.96467 31.59 1485.63 1024.367 14.25 14.19 9.910 3.46656 4.96495 31.59 1485.59 1024.371 14.55 14.49 9.903 3.46652 4.96588 31.60 1485.58 1024.378 14.85 14.79 9.895 3.46734 4.96831 31.61 1485.57 1024.393 15.15 15.09 9.883 3.46661 4.96890 31.61 1485.54 1024.398 15.45 15.39 9.870 3.46590 4.96977 31.62 1485.50 1024.405 15.75 15.69 9.853 3.46564 4.97176 31.63 1485.46 1024.418 16.05 15.99 9.836 3.46476 4.97302 31.64 1485.41 1024.427 16.35 16.28 9.823 3.46442 4.97426 31.64 1485.38 1024.436 16.65 16.58 9.808 3.46449 4.97661 31.66 1485.34 1024.451 16.95 16.88 9.792 3.46449 4.97881 31.67 1485.31 1024.466 17.25 17.18 9.774 3.46431 4.98121 31.69 1485.26 1024.481 17.55 17.48 9.750 3.46294 4.98266 31.69 1485.19 1024.492 17.85 17.78 9.733 3.46020 4.98120 31.68 1485.11 1024.486 18.15 18.07 9.720 3.46093 4.98400 31.70 1485.10 1024.504 18.45 18.37 9.704 3.45832 4.98264 31.69 1485.03 1024.498 18.75 18.67 9.678 3.45656 4.98382 31.69 1484.94 1024.508 19.05 18.97 9.658 3.45555 4.98527 31.70 1484.88 1024.518 19.35 19.27 9.647 3.45509 4.98606 31.70 1484.85 1024.524 19.65 19.57 9.639 3.45565 4.98813 31.72 1484.84 1024.537 19.95 19.87 9.623 3.45486 4.98930 31.72 1484.80 1024.546 20.25 20.16 9.610 3.45303 4.98852 31.71 1484.75 1024.544 20.55 20.46 9.602 3.45461 4.99195 31.74 1484.75 1024.564 20.85 20.76 9.598 3.45394 4.99147 31.73 1484.74 1024.563 21.15 21.06 9.595 3.45348 4.99133 31.73 1484.73 1024.564 21.45 21.36 9.583 3.45419 4.99405 31.75 1484.71 1024.581 21.75 21.66 9.572 3.45382 4.99506 31.76 1484.68 1024.588 22.05 21.96 9.562 3.45326 4.99583 31.76 1484.65 1024.594 22.35 22.25 9.555 3.45398 4.99776 31.77 1484.65 1024.606 22.65 22.55 9.552 3.45357 4.99766 31.77 1484.64 1024.607 22.95 22.85 9.550 3.45304 4.99717 31.77 1484.63 1024.606 23.25 23.15 9.552 3.45232 4.99587 31.76 1484.64 1024.600 23.55 23.45 9.547 3.45361 4.99846 31.78 1484.64 1024.616 23.85 23.75 9.541 3.45201 4.99694 31.76 1484.61 1024.609 24.15 24.04 9.528 3.45189 4.99869 31.77 1484.58 1024.621 24.45 24.34 9.514 3.45129 4.99984 31.78 1484.54 1024.629 24.75 24.64 9.510 3.45020 4.99890 31.77 1484.52 1024.625 25.05 24.94 9.509 3.44821 4.99607 31.75 1484.50 1024.611 25.35 25.24 9.498 3.44802 4.99741 31.76 1484.48 1024.620 25.65 25.54 9.492 3.44742 4.99748 31.76 1484.46 1024.622 25.95 25.84 9.487 3.44830 4.99945 31.77 1484.46 1024.635 26.25 26.13 9.485 3.44754 4.99860 31.77 1484.45 1024.631 26.55 26.43 9.486 3.44789 4.99901 31.77 1484.46 1024.635 26.85 26.73 9.489 3.44884 4.99987 31.78 1484.49 1024.641 27.15 27.03 9.490 3.44993 5.00140 31.79 1484.51 1024.650 27.45 27.33 9.491 3.45010 5.00146 31.79 1484.52 1024.652 27.75 27.63 9.495 3.45065 5.00167 31.79 1484.54 1024.654 28.05 27.92 9.499 3.45182 5.00274 31.80 1484.57 1024.661 28.35 28.22 9.499 3.45302 5.00452 31.81 1484.59 1024.672 28.65 28.52 9.494 3.45219 5.00398 31.80 1484.57 1024.671 28.95 28.82 9.487 3.45182 5.00449 31.81 1484.55 1024.675 29.25 29.12 9.485 3.45151 5.00436 31.81 1484.55 1024.676 29.55 29.42 9.481 3.45143 5.00484 31.81 1484.54 1024.680 29.85 29.72 9.478 3.45097 5.00454 31.81 1484.53 1024.680 30.15 30.01 9.472 3.45013 5.00420 31.80 1484.51 1024.679 30.45 30.31 9.466 3.44937 5.00401 31.80 1484.49 1024.680 30.75 30.61 9.459 3.45000 5.00601 31.81 1484.48 1024.693 31.05 30.91 9.452 3.44949 5.00620 31.81 1484.47 1024.695 31.35 31.21 9.446 3.44920 5.00668 31.82 1484.45 1024.699 31.65 31.51 9.443 3.44892 5.00673 31.82 1484.45 1024.701 31.95 31.80 9.441 3.44908 5.00724 31.82 1484.45 1024.705 32.25 32.10 9.441 3.44914 5.00734 31.82 1484.45 1024.707 32.55 32.40 9.441 3.44813 5.00588 31.81 1484.44 1024.700 32.85 32.70 9.435 3.44907 5.00807 31.82 1484.45 1024.714 33.15 33.00 9.431 3.44866 5.00801 31.82 1484.44 1024.715 33.45 33.30 9.428 3.44842 5.00813 31.82 1484.43 1024.717 33.75 33.60 9.424 3.44923 5.00992 31.83 1484.43 1024.729 34.05 33.89 9.420 3.44850 5.00941 31.83 1484.42 1024.727 34.35 34.19 9.412 3.44841 5.01045 31.84 1484.40 1024.734 34.65 34.49 9.411 3.44835 5.01055 31.84 1484.40 1024.736 34.95 34.79 9.410 3.44835 5.01071 31.84 1484.40 1024.739 35.25 35.09 9.411 3.44817 5.01033 31.84 1484.41 1024.738 35.55 35.39 9.406 3.44746 5.00995 31.83 1484.39 1024.737 35.86 35.69 9.658 3.47680 5.01593 31.91 1485.41 1024.758