*2026/01/16 09:57:54.22 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/03 20:48:04.000 END TIME : UTC 2024/09/03 20:48:23.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 100 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.99 2 Depth metres 0.15 29.88 3 Temperature 'deg C (ITS90)' 9.771 17.305 4 Conductivity S/m 3.08476 3.5423 5 Conductance:Specific S/m 3.64584 5.00995 6 Salinity PSS-78 22.89 31.88 7 Speed:Sound m/s 1485.69 1500.12 8 Density kg/m^3 1016.183 1024.692 $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 : 227 LATITUDE : 49 5.62950 N ! (deg min) LONGITUDE : 124 49.16170 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240903_204804 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 100 100 MERGEHDR 1.3 2026/01/16 09:54:03 100 100 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 100 100 CALIB 12.1 2026/01/16 09:56:54 100 100 CLEAN 5.3 2026/01/16 09:57:54 100 100 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 17.305 3.08476 3.64584 22.89 1499.96 1016.183 0.45 0.45 16.975 3.18728 3.79663 23.93 1500.12 1017.047 0.75 0.75 16.557 3.20462 3.85571 24.32 1499.27 1017.440 1.05 1.05 16.523 3.23514 3.89561 24.60 1499.49 1017.661 1.35 1.35 16.391 3.26250 3.94103 24.91 1499.43 1017.929 1.65 1.65 16.354 3.27464 3.95925 25.04 1499.47 1018.034 1.95 1.95 16.255 3.28182 3.97748 25.16 1499.30 1018.151 2.25 2.25 16.063 3.28243 3.99684 25.29 1498.84 1018.290 2.55 2.55 15.962 3.29627 4.02357 25.47 1498.74 1018.452 2.85 2.85 15.780 3.32174 4.07277 25.81 1498.55 1018.749 3.15 3.15 15.675 3.34509 4.11193 26.07 1498.53 1018.979 3.45 3.45 15.612 3.36104 4.13804 26.25 1498.54 1019.132 3.75 3.75 15.520 3.40100 4.19668 26.66 1498.72 1019.464 4.05 4.05 15.291 3.43110 4.25792 27.08 1498.48 1019.835 4.35 4.35 15.087 3.45092 4.30425 27.39 1498.19 1020.120 4.65 4.65 14.953 3.46487 4.33616 27.61 1498.01 1020.316 4.95 4.95 14.848 3.48143 4.36839 27.83 1497.93 1020.509 5.25 5.25 14.727 3.48624 4.38770 27.96 1497.70 1020.634 5.55 5.55 14.596 3.49063 4.40775 28.09 1497.43 1020.764 5.85 5.85 14.490 3.49493 4.42506 28.21 1497.22 1020.876 6.15 6.15 14.389 3.50028 4.44328 28.33 1497.04 1020.992 6.45 6.45 14.272 3.50623 4.46401 28.47 1496.82 1021.123 6.75 6.75 14.149 3.51153 4.48481 28.61 1496.58 1021.256 7.05 7.05 13.906 3.52486 4.53000 28.91 1496.14 1021.539 7.35 7.35 13.768 3.53035 4.55320 29.07 1495.87 1021.686 7.65 7.65 13.384 3.53701 4.60741 29.42 1495.01 1022.036 7.95 7.95 13.082 3.53993 4.64773 29.68 1494.31 1022.297 8.25 8.25 12.529 3.54141 4.71827 30.13 1492.97 1022.752 8.55 8.55 12.353 3.54090 4.73979 30.27 1492.53 1022.892 8.85 8.85 12.080 3.54230 4.77651 30.50 1491.88 1023.125 9.15 9.14 11.974 3.54103 4.78858 30.58 1491.61 1023.204 9.45 9.44 11.624 3.53842 4.83074 30.84 1490.71 1023.473 9.75 9.74 11.457 3.53547 4.84888 30.95 1490.26 1023.590 10.05 10.04 11.197 3.53384 4.88140 31.15 1489.60 1023.795 10.35 10.34 11.051 3.52988 4.89565 31.24 1489.19 1023.887 10.65 10.64 10.854 3.52773 4.91964 31.39 1488.67 1024.037 10.95 10.94 10.788 3.52699 4.92764 31.44 1488.50 1024.088 11.25 11.24 10.754 3.52556 4.93031 31.45 1488.41 1024.107 11.55 11.53 10.705 3.52438 4.93537 31.48 1488.27 1024.140 11.85 11.83 10.687 3.52465 4.93832 31.50 1488.24 1024.159 12.15 12.13 10.675 3.52346 4.93824 31.50 1488.20 1024.161 12.45 12.43 10.667 3.52377 4.93985 31.51 1488.18 1024.172 12.75 12.73 10.648 3.52226 4.94034 31.51 1488.12 1024.177 13.05 13.03 10.637 3.52214 4.94172 31.52 1488.10 1024.187 13.35 13.33 10.612 3.52276 4.94603 31.54 1488.05 1024.214 13.65 13.62 10.610 3.52144 4.94448 31.53 1488.03 1024.207 13.95 13.92 10.601 3.52152 4.94577 31.54 1488.02 1024.216 14.25 14.22 10.542 3.51972 4.95146 31.57 1487.85 1024.253 14.55 14.52 10.531 3.51905 4.95206 31.58 1487.82 1024.258 14.85 14.82 10.531 3.51692 4.94909 31.56 1487.80 1024.243 15.15 15.12 10.471 3.51543 4.95540 31.59 1487.63 1024.284 15.45 15.42 10.457 3.51425 4.95564 31.59 1487.59 1024.287 15.75 15.71 10.438 3.51369 4.95756 31.60 1487.54 1024.301 16.05 16.01 10.406 3.51330 4.96150 31.63 1487.45 1024.326 16.35 16.31 10.400 3.51281 4.96158 31.63 1487.44 1024.328 16.65 16.61 10.383 3.51321 4.96454 31.65 1487.41 1024.347 16.95 16.91 10.333 3.51083 4.96815 31.67 1487.26 1024.371 17.25 17.21 10.309 3.50628 4.96511 31.64 1487.14 1024.358 17.55 17.51 10.269 3.50373 4.96722 31.65 1487.01 1024.374 17.85 17.80 10.213 3.50253 4.97340 31.69 1486.86 1024.413 18.15 18.10 10.185 3.50284 4.97776 31.71 1486.80 1024.440 18.45 18.40 10.175 3.50247 4.97858 31.72 1486.78 1024.446 18.75 18.70 10.172 3.50247 4.97912 31.72 1486.77 1024.451 19.05 19.00 10.160 3.50132 4.97905 31.72 1486.73 1024.453 19.35 19.30 10.175 3.50095 4.97649 31.70 1486.77 1024.439 19.65 19.60 10.128 3.49862 4.97980 31.72 1486.63 1024.461 19.95 19.89 10.070 3.49834 4.98762 31.77 1486.48 1024.510 20.25 20.19 10.062 3.49638 4.98599 31.76 1486.44 1024.502 20.55 20.49 10.049 3.49487 4.98570 31.75 1486.40 1024.503 20.85 20.79 10.037 3.49568 4.98857 31.77 1486.38 1024.521 21.15 21.09 10.045 3.49459 4.98590 31.75 1486.39 1024.507 21.45 21.39 10.039 3.49389 4.98571 31.75 1486.37 1024.507 21.75 21.68 10.032 3.49564 4.98920 31.77 1486.38 1024.528 22.05 21.98 10.032 3.49595 4.98967 31.78 1486.39 1024.532 22.35 22.28 10.032 3.49569 4.98931 31.77 1486.39 1024.531 22.65 22.58 10.018 3.49502 4.99026 31.78 1486.35 1024.539 22.95 22.88 10.025 3.49545 4.98992 31.78 1486.38 1024.538 23.25 23.18 10.011 3.49477 4.99091 31.78 1486.34 1024.545 23.55 23.48 9.973 3.49363 4.99471 31.81 1486.23 1024.570 23.85 23.77 9.966 3.49159 4.99282 31.79 1486.20 1024.561 24.15 24.07 9.943 3.49154 4.99611 31.81 1486.14 1024.582 24.45 24.37 9.929 3.49019 4.99616 31.81 1486.09 1024.585 24.75 24.67 9.922 3.49049 4.99749 31.82 1486.08 1024.594 25.05 24.97 9.867 3.48791 5.00170 31.84 1485.92 1024.622 25.35 25.27 9.852 3.48715 5.00283 31.85 1485.87 1024.630 25.65 25.57 9.864 3.48689 5.00073 31.83 1485.91 1024.619 25.95 25.86 9.881 3.48791 4.99975 31.83 1485.97 1024.614 26.25 26.16 9.842 3.48674 5.00367 31.85 1485.86 1024.639 26.55 26.46 9.847 3.48754 5.00414 31.85 1485.88 1024.643 26.85 26.76 9.854 3.48808 5.00389 31.85 1485.91 1024.642 27.15 27.06 9.861 3.48851 5.00344 31.85 1485.94 1024.640 27.45 27.36 9.878 3.48866 5.00124 31.84 1485.99 1024.629 27.75 27.65 9.861 3.48663 5.00079 31.83 1485.93 1024.628 28.05 27.95 9.840 3.48663 5.00380 31.85 1485.88 1024.647 28.35 28.25 9.843 3.48565 5.00195 31.84 1485.88 1024.638 28.65 28.55 9.840 3.48572 5.00246 31.84 1485.88 1024.643 28.95 28.85 9.832 3.48561 5.00344 31.85 1485.86 1024.650 29.25 29.15 9.818 3.48325 5.00205 31.83 1485.80 1024.644 29.55 29.45 9.771 3.48397 5.00995 31.88 1485.69 1024.692 29.99 29.88 9.787 3.48301 5.00614 31.86 1485.73 1024.672