*2026/01/16 09:57:54.42 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 15:12:32.000 END TIME : UTC 2024/09/04 15:12:44.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 64 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.12 2 Depth metres 0.15 19.04 3 Temperature 'deg C (ITS90)' 10.66 16.222 4 Conductivity S/m 3.57295 3.88758 5 Conductance:Specific S/m 4.61754 5.01039 6 Salinity PSS-78 29.69 32 7 Speed:Sound m/s 1488.87 1504.87 8 Density kg/m^3 1021.617 1024.589 $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 : 235 LATITUDE : 48 52.57500 N ! (deg min) LONGITUDE : 125 17.46470 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_151232 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 64 64 MERGEHDR 1.3 2026/01/16 09:54:04 64 64 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 64 64 CALIB 12.1 2026/01/16 09:56:55 64 64 CLEAN 5.3 2026/01/16 09:57:54 64 64 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 16.222 3.80688 4.61754 29.69 1504.36 1021.617 0.45 0.45 16.147 3.81929 4.64105 29.85 1504.32 1021.760 0.75 0.75 16.115 3.82740 4.65449 29.94 1504.33 1021.841 1.05 1.05 16.065 3.84626 4.68313 30.15 1504.41 1022.008 1.35 1.35 16.077 3.85476 4.69210 30.21 1504.53 1022.057 1.65 1.65 16.084 3.86229 4.70043 30.27 1504.63 1022.102 1.95 1.95 16.094 3.87326 4.71271 30.36 1504.76 1022.170 2.25 2.24 16.089 3.87730 4.71822 30.40 1504.80 1022.202 2.55 2.54 16.099 3.88176 4.72239 30.43 1504.87 1022.224 2.85 2.84 16.081 3.88397 4.72719 30.46 1504.86 1022.255 3.15 3.14 16.015 3.88758 4.73922 30.54 1504.75 1022.334 3.45 3.44 15.920 3.88717 4.74972 30.61 1504.54 1022.410 3.75 3.74 15.665 3.86165 4.74816 30.59 1503.71 1022.447 4.05 4.04 15.374 3.83989 4.75536 30.62 1502.84 1022.536 4.35 4.34 14.867 3.79894 4.76445 30.65 1501.26 1022.669 4.65 4.64 14.316 3.79294 4.82364 31.03 1499.93 1023.081 4.95 4.94 14.103 3.77859 4.83159 31.07 1499.29 1023.157 5.25 5.24 13.946 3.76107 4.82855 31.04 1498.74 1023.164 5.55 5.53 13.593 3.73219 4.83531 31.06 1497.60 1023.251 5.85 5.83 13.347 3.71790 4.84769 31.13 1496.87 1023.353 6.15 6.13 13.108 3.70822 4.86547 31.23 1496.19 1023.483 6.45 6.43 12.890 3.70046 4.88312 31.34 1495.59 1023.609 6.75 6.73 12.742 3.69308 4.89258 31.39 1495.16 1023.680 7.05 7.03 12.625 3.67709 4.88653 31.34 1494.71 1023.662 7.35 7.33 12.517 3.66948 4.89039 31.36 1494.37 1023.697 7.65 7.63 12.328 3.66123 4.90412 31.43 1493.82 1023.796 7.95 7.92 12.169 3.66195 4.92605 31.58 1493.45 1023.936 8.25 8.22 12.079 3.65579 4.92973 31.59 1493.16 1023.967 8.55 8.52 11.970 3.64159 4.92504 31.55 1492.74 1023.954 8.85 8.82 11.944 3.63338 4.91744 31.49 1492.59 1023.916 9.15 9.12 11.851 3.62907 4.92404 31.53 1492.31 1023.963 9.45 9.42 11.757 3.62831 4.93554 31.60 1492.08 1024.037 9.75 9.72 11.700 3.62859 4.94356 31.65 1491.95 1024.089 10.05 10.01 11.666 3.62884 4.94854 31.68 1491.87 1024.121 10.35 10.31 11.638 3.62755 4.95055 31.69 1491.79 1024.136 10.65 10.61 11.569 3.62378 4.95477 31.72 1491.58 1024.167 10.95 10.91 11.547 3.62269 4.95623 31.72 1491.52 1024.179 11.25 11.21 11.501 3.61998 4.95871 31.74 1491.38 1024.198 11.55 11.51 11.450 3.61564 4.95979 31.74 1491.21 1024.210 11.85 11.81 11.403 3.61165 4.96061 31.74 1491.05 1024.220 12.15 12.10 11.352 3.60974 4.96499 31.76 1490.91 1024.250 12.45 12.40 11.312 3.60802 4.96811 31.78 1490.80 1024.273 12.75 12.70 11.296 3.60551 4.96679 31.77 1490.73 1024.268 13.05 13.00 11.252 3.60299 4.96939 31.78 1490.60 1024.288 13.35 13.30 11.215 3.60254 4.97383 31.81 1490.51 1024.317 13.65 13.60 11.178 3.60108 4.97688 31.83 1490.40 1024.338 13.95 13.90 11.146 3.59989 4.97961 31.84 1490.31 1024.357 14.25 14.19 11.106 3.59659 4.98062 31.85 1490.18 1024.368 14.55 14.49 11.058 3.59403 4.98367 31.86 1490.04 1024.390 14.85 14.79 11.016 3.59113 4.98546 31.87 1489.90 1024.405 15.15 15.09 10.964 3.58947 4.99034 31.90 1489.76 1024.437 15.45 15.39 10.930 3.58667 4.99124 31.90 1489.64 1024.446 15.75 15.69 10.890 3.58444 4.99359 31.91 1489.52 1024.464 16.05 15.99 10.873 3.58247 4.99322 31.91 1489.46 1024.465 16.35 16.28 10.859 3.58229 4.99503 31.92 1489.43 1024.477 16.65 16.58 10.838 3.58209 4.99768 31.94 1489.38 1024.495 16.95 16.88 10.820 3.58024 4.99759 31.93 1489.32 1024.497 17.25 17.18 10.794 3.57776 4.99766 31.93 1489.23 1024.501 17.55 17.48 10.769 3.57556 4.99810 31.93 1489.14 1024.506 17.85 17.78 10.747 3.57379 4.99879 31.93 1489.07 1024.513 18.15 18.08 10.718 3.57295 5.00166 31.95 1488.99 1024.533 18.45 18.37 10.704 3.57349 5.00426 31.97 1488.97 1024.549 18.75 18.67 10.690 3.57472 5.00800 31.99 1488.95 1024.572 19.12 19.04 10.660 3.57344 5.01039 32.00 1488.87 1024.589