*2026/01/16 10:37:53.01 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/29 19:19:45.000 END TIME : UTC 2025/04/29 19:20:14.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 147 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.94 2 Depth metres 0.15 43.89 3 Temperature 'deg C (ITS90)' 10.581 10.783 4 Conductivity S/m 3.00967 3.11238 5 Conductance:Specific S/m 4.20696 4.37347 6 Salinity PSS-78 26.39 27.51 7 Speed:Sound m/s 1482.11 1483.58 8 Density kg/m^3 1020.124 1021.221 $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 : 121 LATITUDE : 49 15.29030 N ! (deg min) LONGITUDE : 125 51.17190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250429_191945 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 147 147 MERGEHDR 1.3 2026/01/16 10:35:43 147 147 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 147 147 CALIB 12.1 2026/01/16 10:37:16 147 147 CLEAN 5.3 2026/01/16 10:37:53 147 147 $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 10.743 3.01391 4.21610 26.45 1482.16 1020.171 0.45 0.45 10.778 3.01281 4.21045 26.42 1482.25 1020.139 0.75 0.75 10.783 3.01136 4.20776 26.40 1482.25 1020.126 1.05 1.05 10.770 3.00967 4.20696 26.39 1482.20 1020.124 1.35 1.35 10.746 3.01476 4.21692 26.46 1482.20 1020.181 1.65 1.65 10.752 3.02031 4.22396 26.51 1482.29 1020.219 1.95 1.95 10.750 3.02180 4.22627 26.52 1482.30 1020.233 2.25 2.25 10.723 3.02155 4.22915 26.54 1482.23 1020.252 2.55 2.55 10.700 3.02140 4.23167 26.55 1482.17 1020.269 2.85 2.85 10.693 3.02131 4.23241 26.56 1482.15 1020.275 3.15 3.15 10.685 3.02111 4.23304 26.56 1482.13 1020.280 3.45 3.45 10.678 3.02138 4.23427 26.57 1482.12 1020.289 3.75 3.75 10.674 3.02169 4.23516 26.58 1482.12 1020.295 4.05 4.05 10.670 3.02176 4.23577 26.58 1482.11 1020.300 4.35 4.35 10.668 3.02269 4.23724 26.59 1482.13 1020.310 4.65 4.65 10.667 3.02302 4.23789 26.59 1482.13 1020.315 4.95 4.95 10.665 3.02205 4.23670 26.58 1482.12 1020.310 5.25 5.25 10.662 3.02184 4.23675 26.58 1482.11 1020.311 5.55 5.55 10.658 3.02281 4.23855 26.60 1482.12 1020.323 5.85 5.84 10.658 3.02332 4.23939 26.60 1482.13 1020.328 6.15 6.14 10.656 3.02368 4.24006 26.61 1482.13 1020.334 6.45 6.44 10.654 3.02442 4.24138 26.62 1482.14 1020.342 6.75 6.74 10.651 3.02471 4.24207 26.62 1482.14 1020.347 7.05 7.04 10.650 3.02330 4.24023 26.61 1482.13 1020.339 7.35 7.34 10.647 3.02455 4.24232 26.62 1482.14 1020.352 7.65 7.64 10.645 3.02673 4.24570 26.64 1482.16 1020.371 7.95 7.94 10.641 3.02746 4.24720 26.65 1482.16 1020.381 8.25 8.24 10.637 3.02791 4.24832 26.66 1482.16 1020.389 8.55 8.54 10.630 3.02838 4.24973 26.67 1482.16 1020.398 8.85 8.84 10.629 3.02665 4.24746 26.65 1482.14 1020.387 9.15 9.14 10.629 3.02636 4.24709 26.65 1482.14 1020.387 9.45 9.44 10.631 3.02708 4.24783 26.66 1482.16 1020.392 9.75 9.74 10.632 3.02807 4.24914 26.67 1482.17 1020.400 10.05 10.04 10.631 3.02846 4.24976 26.67 1482.18 1020.405 10.35 10.34 10.630 3.03051 4.25280 26.69 1482.21 1020.422 10.65 10.64 10.630 3.03063 4.25287 26.69 1482.22 1020.424 10.95 10.94 10.629 3.03177 4.25468 26.70 1482.23 1020.435 11.25 11.24 10.627 3.03327 4.25694 26.72 1482.25 1020.449 11.55 11.54 10.626 3.03386 4.25798 26.73 1482.25 1020.456 11.85 11.84 10.626 3.03483 4.25935 26.74 1482.27 1020.464 12.15 12.14 10.624 3.03526 4.26008 26.74 1482.28 1020.470 12.45 12.44 10.624 3.03540 4.26033 26.74 1482.28 1020.472 12.75 12.74 10.623 3.03617 4.26149 26.75 1482.30 1020.480 13.05 13.04 10.623 3.03542 4.26045 26.74 1482.29 1020.476 13.35 13.34 10.624 3.03610 4.26131 26.75 1482.31 1020.482 13.65 13.64 10.623 3.03579 4.26099 26.75 1482.30 1020.481 13.95 13.94 10.623 3.03544 4.26056 26.74 1482.30 1020.480 14.25 14.24 10.623 3.03566 4.26087 26.74 1482.31 1020.483 14.55 14.54 10.621 3.03559 4.26097 26.75 1482.31 1020.485 14.85 14.84 10.621 3.03506 4.26023 26.74 1482.31 1020.482 15.15 15.14 10.620 3.03533 4.26072 26.74 1482.31 1020.486 15.45 15.44 10.621 3.03602 4.26162 26.75 1482.33 1020.492 15.75 15.73 10.621 3.03586 4.26138 26.75 1482.33 1020.492 16.05 16.03 10.620 3.03569 4.26125 26.75 1482.33 1020.493 16.35 16.33 10.620 3.03633 4.26214 26.75 1482.34 1020.499 16.65 16.63 10.620 3.03646 4.26232 26.75 1482.35 1020.501 16.95 16.93 10.620 3.03615 4.26185 26.75 1482.35 1020.500 17.25 17.23 10.620 3.03700 4.26309 26.76 1482.37 1020.508 17.55 17.53 10.620 3.03653 4.26244 26.75 1482.37 1020.506 17.85 17.83 10.621 3.03644 4.26221 26.75 1482.37 1020.506 18.15 18.13 10.622 3.03767 4.26380 26.76 1482.39 1020.516 18.45 18.43 10.623 3.03817 4.26430 26.77 1482.41 1020.520 18.75 18.73 10.625 3.03813 4.26405 26.77 1482.42 1020.519 19.05 19.03 10.626 3.03814 4.26398 26.76 1482.42 1020.520 19.35 19.33 10.626 3.03858 4.26455 26.77 1482.44 1020.524 19.65 19.63 10.625 3.03873 4.26486 26.77 1482.44 1020.528 19.95 19.93 10.625 3.03831 4.26425 26.77 1482.44 1020.526 20.25 20.23 10.624 3.03804 4.26398 26.76 1482.44 1020.525 20.55 20.53 10.625 3.03819 4.26418 26.77 1482.45 1020.528 20.85 20.83 10.625 3.03829 4.26429 26.77 1482.45 1020.530 21.15 21.13 10.623 3.03857 4.26484 26.77 1482.46 1020.534 21.45 21.43 10.626 3.03788 4.26363 26.76 1482.46 1020.529 21.75 21.73 10.628 3.03816 4.26367 26.76 1482.48 1020.530 22.05 22.03 10.632 3.03878 4.26416 26.77 1482.50 1020.534 22.35 22.33 10.632 3.03904 4.26444 26.77 1482.51 1020.536 22.65 22.63 10.633 3.03945 4.26500 26.77 1482.52 1020.541 22.95 22.93 10.632 3.03978 4.26548 26.77 1482.52 1020.544 23.25 23.23 10.631 3.04017 4.26617 26.78 1482.53 1020.549 23.55 23.53 10.632 3.04094 4.26720 26.79 1482.55 1020.556 23.85 23.83 10.634 3.04064 4.26652 26.78 1482.55 1020.554 24.15 24.13 10.635 3.04079 4.26659 26.78 1482.56 1020.555 24.45 24.42 10.634 3.04109 4.26710 26.79 1482.57 1020.559 24.75 24.72 10.634 3.04150 4.26771 26.79 1482.58 1020.564 25.05 25.02 10.636 3.04155 4.26756 26.79 1482.59 1020.564 25.35 25.32 10.639 3.04146 4.26709 26.79 1482.60 1020.563 25.65 25.62 10.638 3.04228 4.26826 26.79 1482.61 1020.570 25.95 25.92 10.637 3.04180 4.26776 26.79 1482.61 1020.569 26.25 26.22 10.636 3.04288 4.26944 26.80 1482.62 1020.580 26.55 26.52 10.636 3.04320 4.26978 26.80 1482.63 1020.583 26.85 26.82 10.637 3.04356 4.27027 26.81 1482.64 1020.587 27.15 27.12 10.638 3.04443 4.27135 26.81 1482.66 1020.594 27.45 27.42 10.638 3.04487 4.27191 26.82 1482.67 1020.598 27.75 27.72 10.637 3.04538 4.27282 26.82 1482.68 1020.604 28.05 28.02 10.636 3.04477 4.27205 26.82 1482.67 1020.601 28.35 28.32 10.634 3.04405 4.27125 26.81 1482.67 1020.599 28.65 28.62 10.633 3.04376 4.27103 26.81 1482.66 1020.599 28.95 28.92 10.631 3.04375 4.27120 26.81 1482.66 1020.601 29.25 29.22 10.630 3.04300 4.27024 26.81 1482.66 1020.597 29.55 29.52 10.631 3.04372 4.27121 26.81 1482.67 1020.604 29.85 29.82 10.628 3.04411 4.27205 26.82 1482.67 1020.610 30.15 30.12 10.627 3.04432 4.27251 26.82 1482.68 1020.614 30.45 30.42 10.627 3.04411 4.27216 26.82 1482.68 1020.613 30.75 30.72 10.627 3.04485 4.27325 26.83 1482.69 1020.620 31.05 31.02 10.627 3.04551 4.27414 26.83 1482.71 1020.626 31.35 31.32 10.627 3.04573 4.27447 26.83 1482.71 1020.629 31.65 31.62 10.627 3.04638 4.27538 26.84 1482.73 1020.635 31.95 31.92 10.627 3.04629 4.27522 26.84 1482.73 1020.636 32.25 32.22 10.627 3.04683 4.27602 26.84 1482.74 1020.641 32.55 32.52 10.627 3.04692 4.27615 26.84 1482.75 1020.643 32.85 32.81 10.627 3.04657 4.27563 26.84 1482.75 1020.642 33.15 33.11 10.626 3.04676 4.27598 26.84 1482.75 1020.645 33.45 33.41 10.626 3.04651 4.27569 26.84 1482.75 1020.645 33.75 33.71 10.626 3.04632 4.27545 26.84 1482.76 1020.645 34.05 34.01 10.626 3.04711 4.27657 26.85 1482.77 1020.652 34.35 34.31 10.624 3.04967 4.28034 26.87 1482.80 1020.674 34.65 34.61 10.621 3.05684 4.29072 26.94 1482.88 1020.731 34.95 34.91 10.619 3.06120 4.29710 26.99 1482.93 1020.767 35.25 35.21 10.619 3.06424 4.30137 27.02 1482.97 1020.792 35.55 35.51 10.619 3.06489 4.30234 27.02 1482.98 1020.798 35.85 35.81 10.618 3.06770 4.30633 27.05 1483.02 1020.821 36.15 36.11 10.618 3.07613 4.31826 27.13 1483.12 1020.887 36.45 36.41 10.615 3.08043 4.32458 27.18 1483.17 1020.922 36.75 36.71 10.614 3.08092 4.32539 27.18 1483.18 1020.928 37.05 37.01 10.616 3.07910 4.32269 27.16 1483.17 1020.914 37.35 37.31 10.615 3.07754 4.32055 27.15 1483.15 1020.904 37.65 37.61 10.616 3.07837 4.32162 27.16 1483.17 1020.911 37.95 37.91 10.615 3.07864 4.32210 27.16 1483.17 1020.915 38.25 38.21 10.614 3.07911 4.32291 27.17 1483.18 1020.921 38.55 38.51 10.615 3.08111 4.32561 27.18 1483.21 1020.937 38.85 38.81 10.612 3.08398 4.32996 27.21 1483.24 1020.962 39.15 39.11 10.611 3.08540 4.33211 27.23 1483.26 1020.975 39.45 39.41 10.611 3.08417 4.33034 27.22 1483.25 1020.966 39.75 39.71 10.613 3.08446 4.33051 27.22 1483.26 1020.968 40.05 40.00 10.613 3.08559 4.33207 27.23 1483.28 1020.978 40.35 40.30 10.612 3.08582 4.33255 27.23 1483.29 1020.982 40.65 40.60 10.611 3.08824 4.33607 27.26 1483.32 1021.003 40.95 40.90 10.608 3.08810 4.33623 27.26 1483.31 1021.005 41.25 41.20 10.607 3.08965 4.33858 27.27 1483.33 1021.019 41.55 41.50 10.604 3.08973 4.33902 27.28 1483.33 1021.023 41.85 41.80 10.602 3.09123 4.34139 27.29 1483.35 1021.037 42.15 42.10 10.601 3.09935 4.35285 27.37 1483.45 1021.100 42.45 42.40 10.596 3.10808 4.36572 27.46 1483.54 1021.171 42.75 42.70 10.588 3.10819 4.36693 27.47 1483.52 1021.180 43.05 43.00 10.583 3.10807 4.36730 27.47 1483.51 1021.184 43.35 43.30 10.583 3.10854 4.36802 27.47 1483.52 1021.189 43.65 43.60 10.581 3.11070 4.37125 27.50 1483.55 1021.208 43.94 43.89 10.582 3.11238 4.37347 27.51 1483.58 1021.221