*2026/01/16 09:57:53.27 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/12 21:36:12.000 END TIME : UTC 2024/08/12 21:36:24.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 63 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.78 2 Depth metres 0.15 18.75 3 Temperature 'deg C (ITS90)' 14.94 16.123 4 Conductivity S/m 3.53537 3.67074 5 Conductance:Specific S/m 4.31319 4.57593 6 Salinity PSS-78 27.51 29.31 7 Speed:Sound m/s 1500.11 1501.97 8 Density kg/m^3 1020.002 1021.672 $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 : 187 LATITUDE : 49 6.84620 N ! (deg min) LONGITUDE : 125 47.60960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240812_213612 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 63 63 MERGEHDR 1.3 2026/01/16 09:53:58 63 63 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:20 63 63 CALIB 12.1 2026/01/16 09:56:52 63 63 CLEAN 5.3 2026/01/16 09:57:53 63 63 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 16.123 3.58929 4.36414 27.88 1501.97 1020.252 0.45 0.45 16.123 3.55133 4.31789 27.55 1501.60 1020.002 0.75 0.75 15.983 3.53537 4.31319 27.51 1501.12 1020.002 1.05 1.05 15.820 3.54512 4.34237 27.71 1500.84 1020.190 1.35 1.35 15.695 3.57271 4.38962 28.03 1500.82 1020.470 1.65 1.65 15.565 3.61445 4.45509 28.49 1500.94 1020.849 1.95 1.95 15.517 3.63837 4.48988 28.73 1501.08 1021.048 2.25 2.25 15.517 3.63550 4.48640 28.71 1501.05 1021.031 2.55 2.55 15.491 3.63757 4.49185 28.75 1501.02 1021.066 2.85 2.85 15.461 3.65061 4.51123 28.88 1501.09 1021.178 3.15 3.15 15.436 3.65556 4.52016 28.94 1501.08 1021.232 3.45 3.45 15.410 3.65925 4.52772 29.00 1501.06 1021.279 3.75 3.75 15.383 3.65954 4.53104 29.02 1501.01 1021.303 4.05 4.04 15.363 3.65977 4.53361 29.04 1500.97 1021.322 4.35 4.34 15.352 3.66185 4.53741 29.06 1500.97 1021.345 4.65 4.64 15.346 3.66352 4.54007 29.08 1500.98 1021.362 4.95 4.94 15.343 3.66493 4.54216 29.09 1500.99 1021.375 5.25 5.24 15.336 3.66684 4.54538 29.12 1501.00 1021.395 5.55 5.54 15.330 3.66947 4.54931 29.14 1501.01 1021.419 5.85 5.84 15.318 3.66986 4.55113 29.16 1501.00 1021.432 6.15 6.14 15.301 3.67005 4.55331 29.17 1500.96 1021.448 6.45 6.44 15.272 3.67054 4.55715 29.20 1500.91 1021.475 6.75 6.74 15.241 3.66936 4.55926 29.21 1500.82 1021.493 7.05 7.04 15.222 3.66883 4.56073 29.22 1500.78 1021.506 7.35 7.34 15.206 3.66906 4.56285 29.23 1500.75 1021.521 7.65 7.64 15.199 3.66941 4.56400 29.24 1500.74 1021.530 7.95 7.94 15.194 3.67074 4.56625 29.26 1500.75 1021.544 8.25 8.24 15.179 3.66920 4.56604 29.25 1500.70 1021.547 8.55 8.54 15.166 3.66784 4.56589 29.25 1500.66 1021.549 8.85 8.83 15.141 3.66579 4.56617 29.25 1500.59 1021.556 9.15 9.13 15.122 3.66412 4.56624 29.25 1500.53 1021.561 9.45 9.43 15.098 3.66141 4.56555 29.24 1500.45 1021.562 9.75 9.73 15.055 3.66010 4.56884 29.26 1500.34 1021.588 10.05 10.03 15.019 3.65767 4.56992 29.27 1500.24 1021.601 10.35 10.33 15.005 3.65692 4.57058 29.27 1500.20 1021.608 10.65 10.63 14.998 3.65618 4.57045 29.27 1500.18 1021.610 10.95 10.93 14.993 3.65613 4.57093 29.28 1500.18 1021.615 11.25 11.23 14.991 3.65648 4.57163 29.28 1500.18 1021.620 11.55 11.53 14.993 3.65659 4.57160 29.28 1500.19 1021.621 11.85 11.83 14.979 3.65599 4.57242 29.28 1500.16 1021.629 12.15 12.13 14.978 3.65595 4.57250 29.29 1500.16 1021.631 12.45 12.43 14.977 3.65615 4.57285 29.29 1500.16 1021.634 12.75 12.73 14.972 3.65593 4.57309 29.29 1500.15 1021.637 13.05 13.03 14.973 3.65552 4.57249 29.28 1500.16 1021.635 13.35 13.32 14.963 3.65598 4.57416 29.30 1500.14 1021.647 13.65 13.62 14.961 3.65539 4.57367 29.29 1500.14 1021.646 13.95 13.92 14.957 3.65491 4.57360 29.29 1500.13 1021.648 14.25 14.22 14.952 3.65543 4.57482 29.30 1500.12 1021.656 14.55 14.52 14.948 3.65467 4.57425 29.29 1500.11 1021.655 14.85 14.82 14.942 3.65546 4.57593 29.31 1500.11 1021.667 15.15 15.12 14.942 3.65451 4.57474 29.30 1500.11 1021.661 15.45 15.42 14.942 3.65459 4.57487 29.30 1500.11 1021.663 15.75 15.72 14.941 3.65472 4.57520 29.30 1500.12 1021.667 16.05 16.02 14.943 3.65514 4.57549 29.30 1500.13 1021.669 16.35 16.32 14.940 3.65503 4.57564 29.30 1500.13 1021.672 16.65 16.62 14.940 3.65473 4.57523 29.30 1500.13 1021.671 16.95 16.92 14.942 3.65278 4.57258 29.28 1500.12 1021.657 17.25 17.22 14.943 3.65383 4.57375 29.29 1500.14 1021.664 17.55 17.52 14.944 3.65324 4.57297 29.28 1500.14 1021.661 17.85 17.81 14.946 3.65330 4.57285 29.28 1500.15 1021.662 18.15 18.11 14.947 3.65302 4.57233 29.28 1500.15 1021.660 18.45 18.41 14.946 3.65312 4.57257 29.28 1500.16 1021.663 18.78 18.75 14.942 3.65375 4.57385 29.29 1500.16 1021.672