*2026/01/16 09:57:54.12 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/16 16:42:48.000 END TIME : UTC 2024/08/16 16:43:01.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 70 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.78 2 Depth metres 0.15 20.68 3 Temperature 'deg C (ITS90)' 10.539 16 4 Conductivity S/m 3.562 3.90911 5 Conductance:Specific S/m 4.76718 5.01401 6 Salinity PSS-78 30.74 32.01 7 Speed:Sound m/s 1488.46 1504.89 8 Density kg/m^3 1022.479 1024.626 $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 : 224 LATITUDE : 48 49.06680 N ! (deg min) LONGITUDE : 125 10.74500 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240816_164248 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 70 70 MERGEHDR 1.3 2026/01/16 09:54:02 70 70 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 70 70 CALIB 12.1 2026/01/16 09:56:54 70 70 CLEAN 5.3 2026/01/16 09:57:54 70 70 $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 16.000 3.90911 4.76718 30.74 1504.89 1022.479 0.45 0.45 15.926 3.90369 4.76915 30.75 1504.67 1022.504 0.75 0.75 15.825 3.89884 4.77504 30.79 1504.40 1022.555 1.05 1.05 15.586 3.89487 4.79829 30.94 1503.83 1022.725 1.35 1.35 15.246 3.86718 4.80440 30.96 1502.78 1022.816 1.65 1.64 15.233 3.86599 4.80444 30.96 1502.75 1022.820 1.95 1.94 15.128 3.85734 4.80628 30.97 1502.42 1022.848 2.25 2.24 14.891 3.83122 4.80213 30.92 1501.62 1022.864 2.55 2.54 14.783 3.81682 4.79708 30.88 1501.22 1022.855 2.85 2.84 14.595 3.79858 4.79677 30.86 1500.61 1022.883 3.15 3.14 14.358 3.78359 4.80669 30.92 1499.90 1022.975 3.45 3.44 14.072 3.76898 4.82319 31.01 1499.09 1023.109 3.75 3.74 13.758 3.75229 4.84061 31.11 1498.18 1023.250 4.05 4.04 13.525 3.74850 4.86496 31.27 1497.59 1023.417 4.35 4.34 13.387 3.72868 4.85669 31.19 1497.06 1023.391 4.65 4.63 13.223 3.72770 4.87622 31.32 1496.66 1023.522 4.95 4.93 13.020 3.72210 4.89494 31.44 1496.12 1023.652 5.25 5.23 12.969 3.71476 4.89188 31.41 1495.92 1023.643 5.55 5.53 12.894 3.70756 4.89207 31.40 1495.67 1023.654 5.85 5.83 12.791 3.70249 4.89867 31.44 1495.37 1023.704 6.15 6.13 12.560 3.69687 4.92123 31.58 1494.76 1023.858 6.45 6.43 12.358 3.67758 4.92210 31.57 1494.06 1023.887 6.75 6.73 12.268 3.67040 4.92433 31.57 1493.76 1023.910 7.05 7.02 12.201 3.66627 4.92761 31.59 1493.56 1023.937 7.35 7.32 12.112 3.65652 4.92626 31.57 1493.24 1023.940 7.65 7.62 12.007 3.65331 4.93602 31.63 1492.95 1024.007 7.95 7.92 11.886 3.64614 4.94244 31.66 1492.58 1024.056 8.25 8.22 11.815 3.64198 4.94638 31.68 1492.36 1024.086 8.55 8.52 11.722 3.63991 4.95605 31.74 1492.11 1024.150 8.85 8.82 11.669 3.63275 4.95346 31.72 1491.91 1024.143 9.15 9.11 11.637 3.62896 4.95260 31.71 1491.79 1024.142 9.45 9.41 11.584 3.62720 4.95737 31.74 1491.64 1024.175 9.75 9.71 11.553 3.62731 4.96170 31.76 1491.57 1024.203 10.05 10.01 11.525 3.62615 4.96392 31.78 1491.50 1024.219 10.35 10.31 11.477 3.62424 4.96784 31.80 1491.36 1024.247 10.65 10.61 11.432 3.61974 4.96778 31.79 1491.20 1024.252 10.95 10.91 11.414 3.61780 4.96763 31.79 1491.14 1024.254 11.25 11.20 11.389 3.61564 4.96810 31.79 1491.06 1024.260 11.55 11.50 11.366 3.61383 4.96871 31.79 1490.98 1024.267 11.85 11.80 11.338 3.61262 4.97083 31.80 1490.91 1024.283 12.15 12.10 11.318 3.61120 4.97162 31.81 1490.84 1024.290 12.45 12.40 11.299 3.60987 4.97236 31.81 1490.79 1024.297 12.75 12.70 11.264 3.60758 4.97399 31.82 1490.68 1024.311 13.05 13.00 11.221 3.60521 4.97666 31.83 1490.55 1024.331 13.35 13.29 11.194 3.60321 4.97763 31.84 1490.46 1024.340 13.65 13.59 11.138 3.59974 4.98049 31.85 1490.29 1024.362 13.95 13.89 11.098 3.59783 4.98348 31.87 1490.17 1024.383 14.25 14.19 11.045 3.59113 4.98143 31.85 1489.96 1024.377 14.55 14.49 11.014 3.58967 4.98373 31.86 1489.87 1024.394 14.85 14.79 10.983 3.58596 4.98292 31.85 1489.76 1024.394 15.15 15.09 10.941 3.58484 4.98718 31.87 1489.64 1024.422 15.45 15.38 10.911 3.58549 4.99215 31.91 1489.58 1024.453 15.75 15.68 10.897 3.58495 4.99337 31.91 1489.55 1024.462 16.05 15.98 10.888 3.58507 4.99477 31.92 1489.53 1024.472 16.35 16.28 10.882 3.58456 4.99494 31.92 1489.51 1024.475 16.65 16.58 10.877 3.58428 4.99526 31.92 1489.50 1024.478 16.95 16.88 10.860 3.58350 4.99652 31.93 1489.46 1024.488 17.25 17.18 10.840 3.58210 4.99732 31.93 1489.39 1024.495 17.55 17.47 10.780 3.57853 5.00071 31.95 1489.21 1024.520 17.85 17.77 10.744 3.57584 5.00196 31.95 1489.09 1024.531 18.15 18.07 10.735 3.57529 5.00254 31.96 1489.06 1024.536 18.45 18.37 10.758 3.57734 5.00216 31.96 1489.15 1024.533 18.75 18.67 10.798 3.57419 4.99219 31.89 1489.22 1024.476 19.05 18.97 10.772 3.56963 4.98947 31.87 1489.10 1024.465 19.35 19.27 10.632 3.56815 5.00690 31.98 1488.74 1024.573 19.65 19.56 10.595 3.56417 5.00659 31.97 1488.60 1024.576 19.95 19.86 10.569 3.56200 5.00713 31.97 1488.52 1024.582 20.25 20.16 10.550 3.56247 5.01053 31.99 1488.48 1024.603 20.55 20.46 10.539 3.56276 5.01250 32.00 1488.46 1024.616 20.78 20.68 10.539 3.56388 5.01401 32.01 1488.48 1024.626