*2026/01/16 09:57:47.83 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 15:44:12.000 END TIME : UTC 2024/02/15 15:44:23.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 57 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 17.06 2 Depth metres 0.15 17.03 3 Temperature 'deg C (ITS90)' 9.223 9.545 4 Conductivity S/m 3.13189 3.25369 5 Conductance:Specific S/m 4.56801 4.70929 6 Salinity PSS-78 28.73 29.75 7 Speed:Sound m/s 1479.54 1482.06 8 Density kg/m^3 1022.186 1023.003 $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 : 46 LATITUDE : 48 48.76440 N ! (deg min) LONGITUDE : 125 11.14660 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_154412 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 57 57 MERGEHDR 1.3 2026/01/16 09:53:46 57 57 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 57 57 CALIB 12.1 2026/01/16 09:56:46 57 57 CLEAN 5.3 2026/01/16 09:57:47 57 57 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 9.223 3.14218 4.59075 28.89 1479.54 1022.303 0.45 0.45 9.235 3.14566 4.59416 28.91 1479.62 1022.322 0.75 0.75 9.240 3.14367 4.59062 28.89 1479.61 1022.304 1.05 1.05 9.250 3.14352 4.58903 28.88 1479.64 1022.296 1.35 1.35 9.244 3.14541 4.59268 28.90 1479.65 1022.318 1.65 1.65 9.270 3.13717 4.57714 28.80 1479.63 1022.233 1.95 1.95 9.277 3.13513 4.57322 28.77 1479.63 1022.213 2.25 2.25 9.281 3.13189 4.56801 28.73 1479.60 1022.186 2.55 2.55 9.289 3.13539 4.57195 28.76 1479.67 1022.208 2.85 2.85 9.297 3.13888 4.57605 28.79 1479.74 1022.231 3.15 3.15 9.300 3.14378 4.58279 28.84 1479.81 1022.269 3.45 3.45 9.323 3.16808 4.61515 29.07 1480.18 1022.445 3.75 3.75 9.344 3.17277 4.61910 29.10 1480.30 1022.466 4.05 4.04 9.354 3.17627 4.62289 29.12 1480.38 1022.488 4.35 4.34 9.369 3.17857 4.62422 29.14 1480.45 1022.495 4.65 4.64 9.392 3.18693 4.63319 29.20 1480.62 1022.544 4.95 4.94 9.408 3.19424 4.64166 29.26 1480.76 1022.591 5.25 5.24 9.420 3.20380 4.65398 29.35 1480.92 1022.658 5.55 5.54 9.440 3.20737 4.65649 29.37 1481.02 1022.672 5.85 5.84 9.449 3.21229 4.66244 29.41 1481.11 1022.705 6.15 6.14 9.462 3.21684 4.66725 29.45 1481.20 1022.732 6.45 6.44 9.474 3.22070 4.67125 29.48 1481.29 1022.754 6.75 6.74 9.473 3.22139 4.67239 29.48 1481.30 1022.762 7.05 7.04 9.477 3.22507 4.67719 29.52 1481.36 1022.789 7.35 7.34 9.483 3.22580 4.67733 29.52 1481.39 1022.791 7.65 7.64 9.486 3.22665 4.67826 29.53 1481.41 1022.797 7.95 7.94 9.494 3.23081 4.68319 29.56 1481.49 1022.825 8.25 8.24 9.493 3.23095 4.68350 29.56 1481.50 1022.828 8.55 8.54 9.491 3.23092 4.68376 29.56 1481.49 1022.831 8.85 8.84 9.489 3.23143 4.68475 29.57 1481.50 1022.837 9.15 9.14 9.479 3.23083 4.68522 29.57 1481.47 1022.842 9.45 9.44 9.478 3.23052 4.68497 29.57 1481.47 1022.842 9.75 9.73 9.479 3.23067 4.68500 29.57 1481.48 1022.843 10.05 10.03 9.478 3.23035 4.68460 29.57 1481.48 1022.842 10.35 10.33 9.476 3.23042 4.68506 29.57 1481.48 1022.846 10.65 10.63 9.473 3.22983 4.68460 29.57 1481.47 1022.845 10.95 10.93 9.474 3.23050 4.68535 29.57 1481.48 1022.850 11.25 11.23 9.476 3.23068 4.68540 29.57 1481.49 1022.852 11.55 11.53 9.476 3.23057 4.68518 29.57 1481.50 1022.852 11.85 11.83 9.476 3.23107 4.68593 29.58 1481.51 1022.857 12.15 12.13 9.472 3.23074 4.68597 29.58 1481.50 1022.859 12.45 12.43 9.473 3.23034 4.68537 29.57 1481.50 1022.857 12.75 12.73 9.476 3.23051 4.68522 29.57 1481.52 1022.857 13.05 13.03 9.474 3.23014 4.68494 29.57 1481.51 1022.857 13.35 13.33 9.479 3.23033 4.68452 29.57 1481.53 1022.856 13.65 13.63 9.480 3.23141 4.68590 29.58 1481.55 1022.865 13.95 13.93 9.479 3.23093 4.68542 29.57 1481.55 1022.863 14.25 14.23 9.481 3.23203 4.68662 29.58 1481.57 1022.871 14.55 14.53 9.485 3.23380 4.68869 29.60 1481.61 1022.883 14.85 14.83 9.493 3.23399 4.68796 29.59 1481.64 1022.880 15.15 15.12 9.493 3.23418 4.68815 29.59 1481.65 1022.883 15.45 15.42 9.495 3.23615 4.69069 29.61 1481.68 1022.897 15.75 15.72 9.495 3.23877 4.69454 29.64 1481.72 1022.920 16.05 16.02 9.494 3.24112 4.69812 29.66 1481.75 1022.941 16.35 16.32 9.517 3.24903 4.70645 29.72 1481.91 1022.986 16.65 16.62 9.530 3.24977 4.70573 29.72 1481.96 1022.983 17.06 17.03 9.545 3.25369 4.70929 29.75 1482.06 1023.003