*2026/01/16 09:47:04.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 19:07:44.000 END TIME : UTC 2023/12/01 19:07:57.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 69 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.42 2 Depth metres 0.15 20.39 3 Temperature 'deg C (ITS90)' 11.257 11.472 4 Conductivity S/m 3.11374 3.19258 5 Conductance:Specific S/m 4.28399 4.38016 6 Salinity PSS-78 26.98 27.65 7 Speed:Sound m/s 1484.71 1486.44 8 Density kg/m^3 1020.481 1021.078 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 94 LATITUDE : 49 16.01000 N ! (deg min) LONGITUDE : 125 52.10420 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_190744 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 69 69 MERGEHDR 1.3 2026/01/15 13:41:48 69 69 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 69 69 CALIB 12.1 2026/01/16 09:46:09 69 69 CLEAN 5.3 2026/01/16 09:47:04 69 69 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:09 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 09:47:01 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 11.257 3.11374 4.29394 27.04 1484.71 1020.544 0.45 0.45 11.363 3.11561 4.28399 26.98 1485.02 1020.481 0.75 0.75 11.405 3.13347 4.30360 27.12 1485.34 1020.584 1.05 1.05 11.412 3.13651 4.30697 27.14 1485.40 1020.603 1.35 1.35 11.415 3.13730 4.30775 27.15 1485.42 1020.608 1.65 1.65 11.419 3.13845 4.30879 27.16 1485.45 1020.615 1.95 1.95 11.419 3.13848 4.30879 27.16 1485.46 1020.616 2.25 2.25 11.418 3.14053 4.31182 27.18 1485.48 1020.634 2.55 2.55 11.423 3.14170 4.31275 27.18 1485.52 1020.639 2.85 2.85 11.427 3.14215 4.31296 27.19 1485.54 1020.641 3.15 3.15 11.425 3.14141 4.31219 27.18 1485.53 1020.639 3.45 3.45 11.423 3.14313 4.31480 27.20 1485.55 1020.654 3.75 3.75 11.434 3.14401 4.31463 27.20 1485.59 1020.654 4.05 4.05 11.442 3.14378 4.31334 27.19 1485.61 1020.647 4.35 4.34 11.444 3.14495 4.31476 27.20 1485.64 1020.656 4.65 4.64 11.441 3.14664 4.31745 27.22 1485.65 1020.672 4.95 4.94 11.444 3.14735 4.31805 27.22 1485.67 1020.676 5.25 5.24 11.448 3.14765 4.31795 27.22 1485.69 1020.677 5.55 5.54 11.441 3.14681 4.31768 27.22 1485.67 1020.677 5.85 5.84 11.430 3.14515 4.31671 27.21 1485.63 1020.674 6.15 6.14 11.431 3.14502 4.31645 27.21 1485.63 1020.674 6.45 6.44 11.436 3.14738 4.31903 27.23 1485.68 1020.689 6.75 6.74 11.440 3.14732 4.31851 27.22 1485.69 1020.687 7.05 7.04 11.434 3.14688 4.31855 27.22 1485.68 1020.689 7.35 7.34 11.422 3.14550 4.31816 27.22 1485.63 1020.689 7.65 7.64 11.415 3.14553 4.31905 27.23 1485.62 1020.696 7.95 7.94 11.413 3.14700 4.32128 27.24 1485.63 1020.710 8.25 8.24 11.418 3.14878 4.32308 27.25 1485.67 1020.720 8.55 8.54 11.424 3.15150 4.32613 27.28 1485.73 1020.737 8.85 8.84 11.431 3.15331 4.32779 27.29 1485.77 1020.747 9.15 9.14 11.433 3.15386 4.32831 27.29 1485.79 1020.751 9.45 9.44 11.432 3.15358 4.32798 27.29 1485.79 1020.750 9.75 9.74 11.433 3.15392 4.32843 27.29 1485.80 1020.754 10.05 10.04 11.433 3.15418 4.32870 27.29 1485.81 1020.757 10.35 10.34 11.433 3.15425 4.32880 27.29 1485.81 1020.758 10.65 10.64 11.431 3.15436 4.32917 27.30 1485.81 1020.762 10.95 10.94 11.434 3.15497 4.32969 27.30 1485.83 1020.766 11.25 11.24 11.435 3.15486 4.32943 27.30 1485.84 1020.766 11.55 11.54 11.438 3.15701 4.33198 27.32 1485.88 1020.780 11.85 11.83 11.442 3.15884 4.33412 27.33 1485.91 1020.793 12.15 12.13 11.444 3.16015 4.33557 27.34 1485.94 1020.802 12.45 12.43 11.444 3.16046 4.33600 27.35 1485.94 1020.805 12.75 12.73 11.444 3.16075 4.33641 27.35 1485.95 1020.809 13.05 13.03 11.447 3.16139 4.33696 27.35 1485.97 1020.813 13.35 13.33 11.449 3.16259 4.33837 27.36 1486.00 1020.821 13.65 13.63 11.450 3.16327 4.33923 27.37 1486.01 1020.827 13.95 13.93 11.456 3.16419 4.33975 27.37 1486.04 1020.831 14.25 14.23 11.460 3.16520 4.34069 27.38 1486.07 1020.837 14.55 14.53 11.462 3.16698 4.34290 27.39 1486.10 1020.850 14.85 14.83 11.463 3.16852 4.34485 27.41 1486.12 1020.862 15.15 15.13 11.465 3.17058 4.34748 27.43 1486.16 1020.877 15.45 15.43 11.467 3.17191 4.34900 27.44 1486.18 1020.886 15.75 15.73 11.466 3.17255 4.34996 27.44 1486.19 1020.893 16.05 16.03 11.465 3.17397 4.35210 27.46 1486.21 1020.906 16.35 16.33 11.462 3.17480 4.35352 27.47 1486.22 1020.915 16.65 16.63 11.468 3.17594 4.35440 27.47 1486.25 1020.920 16.95 16.93 11.467 3.17665 4.35556 27.48 1486.26 1020.928 17.25 17.23 11.471 3.17683 4.35532 27.48 1486.28 1020.928 17.55 17.53 11.470 3.17700 4.35568 27.48 1486.28 1020.931 17.85 17.83 11.469 3.17737 4.35630 27.49 1486.29 1020.936 18.15 18.13 11.468 3.17695 4.35575 27.48 1486.29 1020.934 18.45 18.43 11.469 3.17707 4.35583 27.48 1486.30 1020.936 18.75 18.72 11.472 3.17723 4.35570 27.48 1486.31 1020.936 19.05 19.02 11.469 3.17740 4.35626 27.49 1486.31 1020.940 19.35 19.32 11.463 3.17985 4.36033 27.51 1486.33 1020.964 19.65 19.62 11.470 3.18382 4.36496 27.55 1486.40 1020.990 19.95 19.92 11.460 3.18933 4.37375 27.61 1486.44 1021.040 20.25 20.22 11.444 3.19258 4.38016 27.65 1486.44 1021.078 20.42 20.39 11.446 3.19209 4.37922 27.64 1486.44 1021.073