*2026/01/16 10:37:52.95 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/29 18:54:06.000 END TIME : UTC 2025/04/29 18:54:34.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 144 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.04 2 Depth metres 0.15 42.98 3 Temperature 'deg C (ITS90)' 10.549 10.826 4 Conductivity S/m 3.02961 3.11559 5 Conductance:Specific S/m 4.23385 4.38138 6 Salinity PSS-78 26.58 27.56 7 Speed:Sound m/s 1482.32 1483.53 8 Density kg/m^3 1020.267 1021.262 $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 : 120 LATITUDE : 49 14.57610 N ! (deg min) LONGITUDE : 125 50.55530 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250429_185406 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 144 144 MERGEHDR 1.3 2026/01/16 10:35:43 144 144 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 144 144 CALIB 12.1 2026/01/16 10:37:16 144 144 CLEAN 5.3 2026/01/16 10:37:52 144 144 $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 3.03761 4.24922 26.68 1482.44 1020.350 0.45 0.45 10.737 3.03116 4.24097 26.62 1482.35 1020.307 0.75 0.75 10.747 3.02961 4.23760 26.60 1482.36 1020.289 1.05 1.05 10.784 3.03009 4.23385 26.58 1482.48 1020.267 1.35 1.35 10.804 3.03251 4.23487 26.59 1482.56 1020.272 1.65 1.65 10.818 3.03451 4.23605 26.60 1482.63 1020.279 1.95 1.95 10.826 3.03581 4.23692 26.60 1482.67 1020.284 2.25 2.25 10.792 3.03703 4.24266 26.64 1482.60 1020.319 2.55 2.55 10.774 3.03793 4.24605 26.66 1482.56 1020.340 2.85 2.85 10.748 3.03800 4.24920 26.68 1482.50 1020.361 3.15 3.15 10.715 3.03941 4.25512 26.72 1482.43 1020.397 3.45 3.45 10.690 3.04051 4.25957 26.75 1482.38 1020.424 3.75 3.75 10.677 3.04119 4.26217 26.76 1482.36 1020.441 4.05 4.05 10.668 3.04102 4.26299 26.77 1482.33 1020.447 4.35 4.35 10.661 3.04238 4.26574 26.79 1482.34 1020.464 4.65 4.65 10.654 3.04345 4.26799 26.80 1482.34 1020.478 4.95 4.95 10.650 3.04286 4.26766 26.80 1482.32 1020.478 5.25 5.24 10.645 3.04373 4.26952 26.81 1482.32 1020.489 5.55 5.54 10.639 3.04525 4.27230 26.83 1482.33 1020.506 5.85 5.84 10.635 3.04496 4.27241 26.83 1482.32 1020.508 6.15 6.14 10.631 3.04549 4.27368 26.84 1482.32 1020.517 6.45 6.44 10.630 3.04542 4.27365 26.84 1482.32 1020.518 6.75 6.74 10.629 3.04511 4.27335 26.83 1482.32 1020.518 7.05 7.04 10.628 3.04522 4.27368 26.84 1482.32 1020.521 7.35 7.34 10.624 3.04519 4.27409 26.84 1482.32 1020.525 7.65 7.64 10.622 3.04590 4.27537 26.85 1482.32 1020.533 7.95 7.94 10.621 3.04500 4.27416 26.84 1482.32 1020.528 8.25 8.24 10.620 3.04524 4.27463 26.84 1482.32 1020.532 8.55 8.54 10.619 3.04543 4.27503 26.84 1482.32 1020.535 8.85 8.84 10.618 3.04532 4.27496 26.84 1482.33 1020.536 9.15 9.14 10.618 3.04509 4.27466 26.84 1482.33 1020.536 9.45 9.44 10.618 3.04488 4.27439 26.84 1482.33 1020.536 9.75 9.74 10.617 3.04484 4.27448 26.84 1482.33 1020.538 10.05 10.04 10.617 3.04472 4.27427 26.84 1482.33 1020.538 10.35 10.34 10.617 3.04507 4.27472 26.84 1482.34 1020.542 10.65 10.64 10.618 3.04584 4.27574 26.85 1482.36 1020.548 10.95 10.94 10.617 3.04500 4.27464 26.84 1482.35 1020.544 11.25 11.24 10.616 3.04563 4.27571 26.85 1482.36 1020.551 11.55 11.54 10.616 3.04541 4.27540 26.85 1482.36 1020.550 11.85 11.84 10.615 3.04555 4.27568 26.85 1482.37 1020.553 12.15 12.14 10.613 3.04552 4.27579 26.85 1482.37 1020.555 12.45 12.44 10.614 3.04490 4.27491 26.84 1482.37 1020.552 12.75 12.74 10.614 3.04559 4.27590 26.85 1482.38 1020.558 13.05 13.04 10.614 3.04555 4.27577 26.85 1482.38 1020.559 13.35 13.34 10.613 3.04607 4.27664 26.85 1482.39 1020.565 13.65 13.64 10.612 3.04644 4.27726 26.86 1482.40 1020.570 13.95 13.93 10.611 3.04564 4.27624 26.85 1482.39 1020.566 14.25 14.23 10.611 3.04724 4.27856 26.87 1482.41 1020.579 14.55 14.53 10.609 3.04600 4.27696 26.86 1482.40 1020.572 14.85 14.83 10.608 3.04751 4.27921 26.87 1482.42 1020.586 15.15 15.13 10.608 3.04783 4.27966 26.87 1482.43 1020.589 15.45 15.43 10.608 3.04780 4.27963 26.87 1482.43 1020.591 15.75 15.73 10.611 3.04808 4.27972 26.87 1482.45 1020.592 16.05 16.03 10.606 3.04819 4.28045 26.88 1482.44 1020.598 16.35 16.33 10.604 3.05076 4.28433 26.90 1482.47 1020.620 16.65 16.63 10.602 3.05048 4.28418 26.90 1482.47 1020.621 16.95 16.93 10.600 3.05004 4.28379 26.90 1482.46 1020.620 17.25 17.23 10.598 3.05272 4.28773 26.93 1482.49 1020.643 17.55 17.53 10.597 3.05658 4.29337 26.97 1482.54 1020.675 17.85 17.83 10.593 3.05997 4.29861 27.00 1482.57 1020.704 18.15 18.13 10.590 3.06462 4.30543 27.05 1482.62 1020.743 18.45 18.43 10.588 3.06550 4.30698 27.06 1482.63 1020.753 18.75 18.73 10.585 3.07247 4.31709 27.13 1482.71 1020.809 19.05 19.03 10.580 3.07359 4.31922 27.14 1482.72 1020.822 19.35 19.33 10.579 3.07313 4.31879 27.14 1482.71 1020.821 19.65 19.63 10.579 3.07356 4.31940 27.14 1482.72 1020.825 19.95 19.93 10.578 3.07368 4.31958 27.15 1482.73 1020.828 20.25 20.23 10.578 3.07353 4.31946 27.14 1482.73 1020.828 20.55 20.53 10.577 3.07366 4.31972 27.15 1482.73 1020.831 20.85 20.83 10.577 3.07352 4.31957 27.15 1482.73 1020.832 21.15 21.13 10.577 3.07389 4.32011 27.15 1482.74 1020.836 21.45 21.42 10.576 3.07446 4.32098 27.15 1482.75 1020.842 21.75 21.72 10.575 3.07419 4.32070 27.15 1482.75 1020.842 22.05 22.02 10.574 3.07396 4.32045 27.15 1482.75 1020.842 22.35 22.32 10.574 3.07474 4.32156 27.16 1482.77 1020.849 22.65 22.62 10.575 3.07499 4.32184 27.16 1482.78 1020.852 22.95 22.92 10.574 3.07625 4.32371 27.17 1482.79 1020.863 23.25 23.22 10.574 3.07639 4.32397 27.17 1482.80 1020.866 23.55 23.52 10.572 3.07619 4.32389 27.17 1482.80 1020.867 23.85 23.82 10.571 3.07760 4.32597 27.19 1482.82 1020.879 24.15 24.12 10.571 3.07810 4.32666 27.19 1482.83 1020.884 24.45 24.42 10.572 3.07823 4.32681 27.19 1482.83 1020.886 24.75 24.72 10.572 3.07856 4.32727 27.20 1482.84 1020.890 25.05 25.02 10.572 3.07838 4.32703 27.19 1482.85 1020.890 25.35 25.32 10.571 3.07811 4.32673 27.19 1482.85 1020.890 25.65 25.62 10.570 3.07877 4.32771 27.20 1482.86 1020.897 25.95 25.92 10.571 3.07993 4.32932 27.21 1482.88 1020.907 26.25 26.22 10.570 3.08034 4.32992 27.21 1482.88 1020.911 26.55 26.52 10.570 3.07990 4.32931 27.21 1482.88 1020.909 26.85 26.82 10.570 3.08143 4.33151 27.23 1482.91 1020.922 27.15 27.12 10.568 3.08221 4.33278 27.23 1482.92 1020.931 27.45 27.42 10.567 3.08197 4.33258 27.23 1482.91 1020.931 27.75 27.72 10.567 3.08577 4.33794 27.27 1482.96 1020.961 28.05 28.02 10.565 3.08605 4.33858 27.27 1482.97 1020.966 28.35 28.31 10.565 3.08697 4.33993 27.28 1482.98 1020.975 28.65 28.61 10.563 3.08808 4.34164 27.29 1482.99 1020.985 28.95 28.91 10.562 3.09002 4.34456 27.31 1483.02 1021.002 29.25 29.21 10.561 3.09093 4.34595 27.32 1483.03 1021.011 29.55 29.51 10.560 3.09090 4.34609 27.32 1483.03 1021.013 29.85 29.81 10.560 3.09194 4.34752 27.33 1483.05 1021.022 30.15 30.11 10.558 3.09135 4.34686 27.33 1483.04 1021.020 30.45 30.41 10.557 3.09170 4.34753 27.33 1483.05 1021.025 30.75 30.71 10.556 3.09307 4.34956 27.35 1483.07 1021.038 31.05 31.01 10.555 3.09615 4.35407 27.38 1483.10 1021.063 31.35 31.31 10.552 3.09900 4.35834 27.41 1483.14 1021.088 31.65 31.61 10.552 3.10009 4.35996 27.42 1483.15 1021.098 31.95 31.91 10.552 3.10177 4.36226 27.43 1483.18 1021.112 32.25 32.21 10.551 3.10117 4.36158 27.43 1483.17 1021.109 32.55 32.51 10.550 3.10140 4.36199 27.43 1483.18 1021.113 32.85 32.81 10.550 3.10193 4.36272 27.44 1483.19 1021.118 33.15 33.11 10.549 3.10230 4.36339 27.44 1483.20 1021.123 33.45 33.41 10.549 3.10215 4.36319 27.44 1483.20 1021.123 33.75 33.71 10.549 3.10208 4.36306 27.44 1483.20 1021.124 34.05 34.01 10.551 3.10247 4.36345 27.44 1483.22 1021.127 34.35 34.30 10.551 3.10241 4.36337 27.44 1483.22 1021.128 34.65 34.60 10.551 3.10266 4.36362 27.44 1483.23 1021.130 34.95 34.90 10.551 3.10264 4.36364 27.44 1483.23 1021.132 35.25 35.20 10.551 3.10255 4.36353 27.44 1483.24 1021.133 35.55 35.50 10.550 3.10278 4.36394 27.45 1483.24 1021.136 35.85 35.80 10.550 3.10255 4.36369 27.44 1483.24 1021.136 36.15 36.10 10.551 3.10336 4.36460 27.45 1483.26 1021.142 36.45 36.40 10.553 3.10373 4.36494 27.45 1483.28 1021.145 36.75 36.70 10.553 3.10303 4.36390 27.44 1483.27 1021.141 37.05 37.00 10.553 3.10377 4.36493 27.45 1483.29 1021.148 37.35 37.30 10.553 3.10363 4.36474 27.45 1483.29 1021.148 37.65 37.60 10.552 3.10379 4.36513 27.45 1483.29 1021.151 37.95 37.90 10.549 3.10382 4.36560 27.46 1483.29 1021.156 38.25 38.20 10.549 3.10529 4.36767 27.47 1483.31 1021.168 38.55 38.50 10.550 3.10475 4.36678 27.46 1483.31 1021.164 38.85 38.80 10.550 3.10505 4.36712 27.47 1483.32 1021.167 39.15 39.10 10.551 3.10559 4.36777 27.47 1483.34 1021.172 39.45 39.40 10.551 3.10711 4.36994 27.49 1483.36 1021.185 39.75 39.70 10.551 3.10753 4.37058 27.49 1483.37 1021.190 40.05 39.99 10.552 3.10785 4.37090 27.49 1483.38 1021.193 40.35 40.29 10.552 3.10871 4.37207 27.50 1483.39 1021.200 40.65 40.59 10.552 3.10886 4.37231 27.50 1483.40 1021.203 40.95 40.89 10.552 3.11097 4.37524 27.52 1483.43 1021.220 41.25 41.19 10.553 3.11142 4.37580 27.53 1483.44 1021.224 41.55 41.49 10.553 3.11185 4.37637 27.53 1483.45 1021.229 41.85 41.79 10.553 3.11183 4.37637 27.53 1483.46 1021.230 42.15 42.09 10.554 3.11466 4.38019 27.56 1483.50 1021.252 42.45 42.39 10.554 3.11536 4.38118 27.56 1483.51 1021.258 42.75 42.69 10.553 3.11533 4.38129 27.56 1483.51 1021.260 43.04 42.98 10.555 3.11559 4.38138 27.56 1483.53 1021.262