*2026/01/16 10:37:52.70 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/29 16:10:04.000 END TIME : UTC 2025/04/29 16:10:30.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 132 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.33 2 Depth metres 0.15 39.31 3 Temperature 'deg C (ITS90)' 10.577 10.793 4 Conductivity S/m 2.86167 3.00678 5 Conductance:Specific S/m 3.99755 4.22351 6 Salinity PSS-78 24.95 26.47 7 Speed:Sound m/s 1480.54 1482.3 8 Density kg/m^3 1018.997 1020.392 $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 : 116 LATITUDE : 49 11.17550 N ! (deg min) LONGITUDE : 125 46.36650 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250429_161004 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 132 132 MERGEHDR 1.3 2026/01/16 10:35:42 132 132 HDREDIT2 3.2 2026/01/16 10:36:13 ? ? REMOVECH 8.2 2026/01/16 10:36:40 132 132 CALIB 12.1 2026/01/16 10:37:16 132 132 CLEAN 5.3 2026/01/16 10:37:52 132 132 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:13 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 10.788 2.86825 4.00732 25.01 1480.60 1019.049 0.45 0.45 10.793 2.86167 3.99755 24.95 1480.54 1018.997 0.75 0.75 10.783 2.86933 4.00930 25.03 1480.61 1019.062 1.05 1.05 10.779 2.87030 4.01118 25.04 1480.61 1019.074 1.35 1.35 10.777 2.87235 4.01428 25.06 1480.63 1019.092 1.65 1.65 10.771 2.87672 4.02106 25.11 1480.67 1019.130 1.95 1.95 10.760 2.88058 4.02768 25.15 1480.69 1019.168 2.25 2.25 10.751 2.88337 4.03257 25.18 1480.70 1019.196 2.55 2.55 10.744 2.88822 4.04016 25.24 1480.74 1019.238 2.85 2.85 10.741 2.88857 4.04101 25.24 1480.74 1019.244 3.15 3.15 10.738 2.89156 4.04553 25.27 1480.77 1019.270 3.45 3.45 10.733 2.89787 4.05491 25.34 1480.84 1019.322 3.75 3.75 10.723 2.90294 4.06308 25.39 1480.88 1019.368 4.05 4.05 10.716 2.90486 4.06665 25.42 1480.88 1019.389 4.35 4.35 10.710 2.90628 4.06928 25.43 1480.89 1019.405 4.65 4.65 10.705 2.90800 4.07229 25.45 1480.90 1019.423 4.95 4.95 10.700 2.91180 4.07817 25.49 1480.93 1019.456 5.25 5.25 10.696 2.91544 4.08372 25.53 1480.97 1019.487 5.55 5.55 10.693 2.92080 4.09156 25.58 1481.03 1019.531 5.85 5.85 10.690 2.92580 4.09893 25.63 1481.08 1019.572 6.15 6.15 10.684 2.92952 4.10481 25.67 1481.11 1019.605 6.45 6.45 10.681 2.93156 4.10798 25.70 1481.13 1019.624 6.75 6.75 10.677 2.93523 4.11357 25.73 1481.17 1019.655 7.05 7.05 10.674 2.93810 4.11802 25.76 1481.20 1019.681 7.35 7.35 10.669 2.94059 4.12204 25.79 1481.22 1019.704 7.65 7.65 10.667 2.94664 4.13079 25.85 1481.29 1019.752 7.95 7.95 10.662 2.95017 4.13630 25.89 1481.32 1019.783 8.25 8.25 10.655 2.95353 4.14184 25.93 1481.34 1019.815 8.55 8.55 10.652 2.95552 4.14497 25.95 1481.36 1019.833 8.85 8.85 10.651 2.95598 4.14567 25.95 1481.37 1019.838 9.15 9.15 10.649 2.95718 4.14766 25.97 1481.38 1019.851 9.45 9.45 10.645 2.95854 4.14997 25.98 1481.40 1019.865 9.75 9.75 10.642 2.95908 4.15107 25.99 1481.40 1019.872 10.05 10.05 10.642 2.95939 4.15156 25.99 1481.41 1019.876 10.35 10.35 10.641 2.95961 4.15196 25.99 1481.41 1019.879 10.65 10.65 10.641 2.95976 4.15219 26.00 1481.42 1019.882 10.95 10.95 10.640 2.95876 4.15089 25.99 1481.41 1019.876 11.25 11.25 10.640 2.96002 4.15271 26.00 1481.43 1019.888 11.55 11.55 10.639 2.95980 4.15247 26.00 1481.43 1019.888 11.85 11.85 10.639 2.95951 4.15207 25.99 1481.43 1019.887 12.15 12.15 10.638 2.96041 4.15348 26.00 1481.44 1019.896 12.45 12.45 10.637 2.96077 4.15406 26.01 1481.45 1019.900 12.75 12.75 10.636 2.96099 4.15444 26.01 1481.45 1019.904 13.05 13.05 10.635 2.96143 4.15520 26.02 1481.46 1019.909 13.35 13.35 10.633 2.96095 4.15483 26.01 1481.45 1019.909 13.65 13.65 10.632 2.96172 4.15600 26.02 1481.46 1019.916 13.95 13.95 10.632 2.96261 4.15723 26.03 1481.48 1019.924 14.25 14.25 10.629 2.96320 4.15842 26.04 1481.48 1019.932 14.55 14.55 10.626 2.96416 4.16006 26.05 1481.49 1019.942 14.85 14.85 10.624 2.96369 4.15964 26.04 1481.48 1019.942 15.15 15.15 10.624 2.96523 4.16184 26.06 1481.51 1019.955 15.45 15.45 10.624 2.96515 4.16178 26.06 1481.51 1019.956 15.75 15.75 10.622 2.96570 4.16275 26.07 1481.51 1019.962 16.05 16.05 10.621 2.96623 4.16365 26.07 1481.52 1019.968 16.35 16.35 10.620 2.96607 4.16354 26.07 1481.52 1019.969 16.65 16.65 10.619 2.96600 4.16352 26.07 1481.52 1019.971 16.95 16.95 10.618 2.96578 4.16336 26.07 1481.52 1019.971 17.25 17.25 10.616 2.96613 4.16405 26.07 1481.53 1019.976 17.55 17.55 10.616 2.96741 4.16583 26.09 1481.55 1019.987 17.85 17.84 10.613 2.96639 4.16472 26.08 1481.53 1019.983 18.15 18.14 10.613 2.96626 4.16461 26.08 1481.53 1019.983 18.45 18.44 10.611 2.96658 4.16530 26.08 1481.54 1019.988 18.75 18.74 10.609 2.96714 4.16631 26.09 1481.54 1019.995 19.05 19.04 10.607 2.96724 4.16668 26.09 1481.54 1019.999 19.35 19.34 10.605 2.96751 4.16729 26.09 1481.55 1020.004 19.65 19.64 10.602 2.96890 4.16960 26.11 1481.56 1020.017 19.95 19.94 10.598 2.97123 4.17328 26.13 1481.58 1020.039 20.25 20.24 10.594 2.97158 4.17424 26.14 1481.58 1020.046 20.55 20.54 10.588 2.97238 4.17604 26.15 1481.58 1020.057 20.85 20.84 10.584 2.97333 4.17790 26.16 1481.58 1020.069 21.15 21.14 10.583 2.97178 4.17588 26.15 1481.56 1020.059 21.45 21.44 10.583 2.97312 4.17777 26.16 1481.58 1020.071 21.75 21.74 10.583 2.97355 4.17832 26.17 1481.59 1020.075 22.05 22.04 10.582 2.97369 4.17866 26.17 1481.60 1020.078 22.35 22.34 10.583 2.97335 4.17805 26.17 1481.60 1020.076 22.65 22.64 10.584 2.97355 4.17826 26.17 1481.61 1020.078 22.95 22.94 10.584 2.97354 4.17824 26.17 1481.62 1020.080 23.25 23.24 10.583 2.97368 4.17854 26.17 1481.62 1020.083 23.55 23.54 10.582 2.97327 4.17803 26.16 1481.62 1020.081 23.85 23.84 10.582 2.97481 4.18021 26.18 1481.64 1020.094 24.15 24.14 10.581 2.97538 4.18112 26.19 1481.65 1020.100 24.45 24.44 10.582 2.97651 4.18263 26.20 1481.67 1020.110 24.75 24.74 10.582 2.97906 4.18620 26.22 1481.70 1020.130 25.05 25.04 10.583 2.98066 4.18827 26.23 1481.73 1020.142 25.35 25.34 10.583 2.98093 4.18874 26.24 1481.74 1020.146 25.65 25.64 10.586 2.98079 4.18815 26.23 1481.75 1020.144 25.95 25.94 10.585 2.98126 4.18892 26.24 1481.76 1020.150 26.25 26.24 10.586 2.98089 4.18825 26.23 1481.76 1020.147 26.55 26.54 10.587 2.98209 4.18991 26.25 1481.78 1020.157 26.85 26.84 10.584 2.98273 4.19113 26.25 1481.79 1020.166 27.15 27.14 10.581 2.98414 4.19343 26.27 1481.80 1020.179 27.45 27.44 10.580 2.98727 4.19800 26.30 1481.84 1020.205 27.75 27.74 10.581 2.99138 4.20362 26.34 1481.89 1020.237 28.05 28.04 10.582 2.99590 4.20987 26.38 1481.95 1020.271 28.35 28.34 10.581 2.99663 4.21097 26.39 1481.96 1020.279 28.65 28.64 10.581 2.99660 4.21096 26.39 1481.97 1020.280 28.95 28.94 10.581 2.99689 4.21132 26.39 1481.98 1020.283 29.25 29.24 10.581 2.99711 4.21166 26.39 1481.98 1020.286 29.55 29.54 10.582 2.99711 4.21159 26.39 1481.99 1020.287 29.85 29.84 10.582 2.99731 4.21185 26.40 1482.00 1020.290 30.15 30.14 10.581 2.99725 4.21183 26.40 1482.00 1020.291 30.45 30.44 10.580 2.99721 4.21190 26.40 1482.00 1020.293 30.75 30.74 10.580 2.99718 4.21186 26.40 1482.01 1020.294 31.05 31.04 10.580 2.99686 4.21149 26.39 1482.01 1020.293 31.35 31.33 10.579 2.99711 4.21195 26.40 1482.01 1020.297 31.65 31.63 10.578 2.99674 4.21153 26.39 1482.01 1020.296 31.95 31.93 10.578 2.99645 4.21113 26.39 1482.01 1020.295 32.25 32.23 10.578 2.99703 4.21193 26.40 1482.02 1020.301 32.55 32.53 10.578 2.99720 4.21216 26.40 1482.03 1020.303 32.85 32.83 10.577 2.99767 4.21290 26.40 1482.04 1020.309 33.15 33.13 10.579 2.99815 4.21340 26.41 1482.05 1020.313 33.45 33.43 10.579 2.99782 4.21290 26.40 1482.05 1020.311 33.75 33.73 10.579 2.99824 4.21350 26.41 1482.06 1020.316 34.05 34.03 10.579 2.99893 4.21446 26.41 1482.08 1020.322 34.35 34.33 10.579 2.99860 4.21399 26.41 1482.08 1020.321 34.65 34.63 10.578 2.99883 4.21449 26.41 1482.08 1020.325 34.95 34.93 10.579 2.99913 4.21476 26.41 1482.09 1020.328 35.25 35.23 10.579 2.99883 4.21433 26.41 1482.09 1020.327 35.55 35.53 10.577 2.99852 4.21409 26.41 1482.09 1020.327 35.85 35.83 10.578 2.99902 4.21476 26.41 1482.10 1020.332 36.15 36.13 10.579 2.99994 4.21591 26.42 1482.12 1020.339 36.45 36.43 10.579 2.99864 4.21409 26.41 1482.11 1020.330 36.75 36.73 10.577 3.00042 4.21675 26.43 1482.13 1020.346 37.05 37.03 10.579 3.00122 4.21769 26.43 1482.15 1020.352 37.35 37.33 10.578 3.00104 4.21755 26.43 1482.15 1020.353 37.65 37.63 10.581 3.00233 4.21895 26.44 1482.18 1020.361 37.95 37.93 10.582 3.00280 4.21950 26.45 1482.19 1020.366 38.25 38.23 10.582 3.00332 4.22023 26.45 1482.20 1020.371 38.55 38.53 10.583 3.00364 4.22065 26.45 1482.21 1020.374 38.85 38.83 10.584 3.00509 4.22257 26.47 1482.24 1020.386 39.15 39.13 10.586 3.00590 4.22340 26.47 1482.26 1020.391 39.33 39.31 10.596 3.00678 4.22351 26.47 1482.30 1020.392