*2026/01/16 09:57:54.53 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 19:54:54.000 END TIME : UTC 2024/09/04 19:55:16.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 114 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.11 2 Depth metres 0.15 33.96 3 Temperature 'deg C (ITS90)' 9.85 18.258 4 Conductivity S/m 3.51288 3.9704 5 Conductance:Specific S/m 4.58917 5.04213 6 Salinity PSS-78 29.58 32.12 7 Speed:Sound m/s 1486.34 1510.41 8 Density kg/m^3 1021.067 1024.884 $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 : 241 LATITUDE : 48 56.44890 N ! (deg min) LONGITUDE : 125 15.79630 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_195454 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 114 114 MERGEHDR 1.3 2026/01/16 09:54:05 114 114 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 114 114 CALIB 12.1 2026/01/16 09:56:55 114 114 CLEAN 5.3 2026/01/16 09:57:54 114 114 $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 18.258 3.97034 4.58917 29.58 1510.41 1021.067 0.45 0.45 18.175 3.97040 4.59801 29.64 1510.24 1021.134 0.75 0.75 18.126 3.96095 4.59229 29.60 1510.05 1021.114 1.05 1.05 18.101 3.95667 4.59004 29.58 1509.96 1021.108 1.35 1.35 17.795 3.94893 4.61383 29.74 1509.23 1021.302 1.65 1.65 17.509 3.94262 4.63738 29.89 1508.56 1021.489 1.95 1.95 17.345 3.92951 4.63987 29.90 1508.08 1021.537 2.25 2.25 17.083 3.91525 4.65186 29.98 1507.37 1021.654 2.55 2.55 16.826 3.89686 4.65846 30.01 1506.63 1021.741 2.85 2.84 16.523 3.88638 4.67980 30.15 1505.86 1021.915 3.15 3.14 16.330 3.86411 4.67472 30.10 1505.22 1021.924 3.45 3.44 16.118 3.83401 4.66218 30.00 1504.45 1021.894 3.75 3.74 15.612 3.82593 4.71037 30.31 1503.23 1022.248 4.05 4.04 14.845 3.79776 4.76565 30.66 1501.19 1022.678 4.35 4.34 14.697 3.79307 4.77757 30.73 1500.81 1022.768 4.65 4.64 14.518 3.78512 4.78912 30.80 1500.31 1022.860 4.95 4.94 14.288 3.77701 4.80686 30.91 1499.70 1022.994 5.25 5.24 13.936 3.76161 4.83052 31.05 1498.72 1023.176 5.55 5.54 13.578 3.73803 4.84476 31.13 1497.63 1023.305 5.85 5.83 13.267 3.72373 4.86541 31.25 1496.74 1023.461 6.15 6.13 13.002 3.71639 4.88978 31.40 1496.03 1023.631 6.45 6.43 12.856 3.70021 4.88719 31.36 1495.51 1023.636 6.75 6.73 12.767 3.69654 4.89389 31.40 1495.26 1023.685 7.05 7.03 12.711 3.69371 4.89742 31.42 1495.10 1023.712 7.35 7.33 12.635 3.69237 4.90555 31.47 1494.91 1023.767 7.65 7.63 12.597 3.68969 4.90687 31.48 1494.79 1023.780 7.95 7.93 12.566 3.68608 4.90615 31.47 1494.68 1023.781 8.25 8.22 12.463 3.68281 4.91532 31.53 1494.40 1023.845 8.55 8.52 12.305 3.67410 4.92435 31.58 1493.93 1023.914 8.85 8.82 12.176 3.65796 4.91977 31.53 1493.43 1023.904 9.15 9.12 12.079 3.64502 4.91515 31.49 1493.06 1023.890 9.45 9.42 11.940 3.64102 4.92822 31.57 1492.68 1023.978 9.75 9.72 11.855 3.63858 4.93635 31.62 1492.44 1024.033 10.05 10.02 11.823 3.63511 4.93597 31.61 1492.33 1024.036 10.35 10.32 11.792 3.63162 4.93537 31.60 1492.22 1024.037 10.65 10.61 11.752 3.63040 4.93899 31.62 1492.11 1024.062 10.95 10.91 11.717 3.62472 4.93605 31.60 1491.96 1024.051 11.25 11.21 11.664 3.62299 4.94075 31.63 1491.82 1024.083 11.55 11.51 11.628 3.62076 4.94268 31.64 1491.71 1024.099 11.85 11.81 11.588 3.61894 4.94558 31.65 1491.59 1024.120 12.15 12.11 11.549 3.61675 4.94786 31.66 1491.48 1024.137 12.45 12.41 11.517 3.61382 4.94816 31.66 1491.37 1024.143 12.75 12.70 11.482 3.61307 4.95187 31.69 1491.28 1024.168 13.05 13.00 11.457 3.60915 4.94984 31.67 1491.18 1024.161 13.35 13.30 11.427 3.60774 4.95206 31.68 1491.09 1024.177 13.65 13.60 11.405 3.60755 4.95476 31.70 1491.04 1024.195 13.95 13.90 11.384 3.60636 4.95598 31.70 1490.98 1024.205 14.25 14.20 11.356 3.60541 4.95844 31.72 1490.90 1024.223 14.55 14.50 11.330 3.60396 4.96006 31.73 1490.83 1024.235 14.85 14.79 11.288 3.60250 4.96375 31.75 1490.71 1024.261 15.15 15.09 11.257 3.59896 4.96319 31.74 1490.60 1024.262 15.45 15.39 11.215 3.59500 4.96342 31.74 1490.45 1024.268 15.75 15.69 11.164 3.59239 4.96684 31.76 1490.30 1024.293 16.05 15.99 11.133 3.59027 4.96814 31.76 1490.20 1024.304 16.35 16.29 11.073 3.58650 4.97115 31.78 1490.01 1024.327 16.65 16.59 11.009 3.58354 4.97589 31.80 1489.82 1024.360 16.95 16.88 10.956 3.58205 4.98123 31.83 1489.68 1024.395 17.25 17.18 10.921 3.57847 4.98103 31.83 1489.55 1024.398 17.55 17.48 10.876 3.57572 4.98349 31.84 1489.41 1024.417 17.85 17.78 10.837 3.57286 4.98488 31.84 1489.29 1024.429 18.15 18.08 10.796 3.57047 4.98720 31.86 1489.16 1024.446 18.45 18.38 10.760 3.56900 4.99027 31.87 1489.06 1024.468 18.75 18.68 10.727 3.56707 4.99217 31.88 1488.95 1024.482 19.05 18.97 10.696 3.56574 4.99453 31.90 1488.87 1024.499 19.35 19.27 10.662 3.56337 4.99607 31.90 1488.76 1024.511 19.65 19.57 10.641 3.56275 4.99807 31.91 1488.70 1024.525 19.95 19.87 10.618 3.56113 4.99901 31.92 1488.63 1024.533 20.25 20.17 10.584 3.55820 4.99968 31.92 1488.51 1024.541 20.55 20.47 10.535 3.55639 5.00409 31.94 1488.37 1024.570 20.85 20.77 10.499 3.55523 5.00749 31.96 1488.27 1024.593 21.15 21.06 10.464 3.55227 5.00833 31.96 1488.15 1024.601 21.45 21.36 10.421 3.55137 5.01308 31.99 1488.04 1024.632 21.75 21.66 10.395 3.54726 5.01099 31.97 1487.93 1024.624 22.05 21.96 10.360 3.54566 5.01360 31.99 1487.83 1024.642 22.35 22.26 10.335 3.54272 5.01309 31.98 1487.73 1024.642 22.65 22.56 10.308 3.54193 5.01571 32.00 1487.66 1024.660 22.95 22.85 10.294 3.54025 5.01541 31.99 1487.61 1024.660 23.25 23.15 10.271 3.53884 5.01660 32.00 1487.54 1024.670 23.55 23.45 10.252 3.53829 5.01859 32.01 1487.49 1024.683 23.85 23.75 10.241 3.53772 5.01927 32.01 1487.46 1024.689 24.15 24.05 10.238 3.53760 5.01956 32.01 1487.46 1024.692 24.45 24.35 10.237 3.53709 5.01904 32.01 1487.45 1024.691 24.75 24.65 10.215 3.53603 5.02065 32.02 1487.39 1024.702 25.05 24.94 10.205 3.53572 5.02157 32.02 1487.36 1024.709 25.35 25.24 10.179 3.53334 5.02189 32.02 1487.27 1024.714 25.65 25.54 10.169 3.53410 5.02450 32.04 1487.26 1024.730 25.95 25.84 10.148 3.53037 5.02214 32.02 1487.17 1024.720 26.25 26.14 10.117 3.52929 5.02501 32.04 1487.08 1024.739 26.55 26.44 10.101 3.52776 5.02522 32.04 1487.02 1024.743 26.85 26.73 10.090 3.52672 5.02526 32.03 1486.99 1024.745 27.15 27.03 10.080 3.52716 5.02735 32.05 1486.97 1024.758 27.45 27.33 10.064 3.52530 5.02702 32.04 1486.92 1024.759 27.75 27.63 10.038 3.52468 5.02983 32.06 1486.85 1024.777 28.05 27.93 10.029 3.52292 5.02865 32.05 1486.81 1024.773 28.35 28.23 10.015 3.52299 5.03070 32.06 1486.78 1024.786 28.65 28.52 10.000 3.52168 5.03092 32.06 1486.73 1024.790 28.95 28.82 9.992 3.52135 5.03162 32.07 1486.71 1024.795 29.25 29.12 9.987 3.52071 5.03149 32.06 1486.69 1024.796 29.55 29.42 9.975 3.52083 5.03329 32.08 1486.67 1024.808 29.85 29.72 9.966 3.52040 5.03407 32.08 1486.64 1024.814 30.15 30.02 9.960 3.52089 5.03559 32.09 1486.64 1024.824 30.45 30.32 9.965 3.52052 5.03429 32.08 1486.65 1024.818 30.75 30.61 9.956 3.52069 5.03594 32.09 1486.64 1024.829 31.05 30.91 9.963 3.52138 5.03594 32.09 1486.67 1024.830 31.35 31.21 9.957 3.52047 5.03538 32.09 1486.65 1024.828 31.65 31.51 9.952 3.52091 5.03684 32.10 1486.64 1024.838 31.95 31.81 9.960 3.52015 5.03452 32.08 1486.66 1024.826 32.25 32.11 9.945 3.51848 5.03433 32.08 1486.61 1024.827 32.55 32.40 9.932 3.51757 5.03483 32.08 1486.57 1024.832 32.85 32.70 9.906 3.51660 5.03729 32.09 1486.49 1024.848 33.15 33.00 9.889 3.51477 5.03714 32.09 1486.43 1024.850 33.45 33.30 9.869 3.51495 5.04015 32.11 1486.39 1024.869 33.75 33.60 9.856 3.51288 5.03910 32.10 1486.34 1024.865 34.11 33.96 9.850 3.51437 5.04213 32.12 1486.34 1024.884