*2026/01/16 09:57:52.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 15:36:19.000 END TIME : UTC 2024/07/10 15:36:34.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 77 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.96 2 Depth metres 0.15 22.89 3 Temperature 'deg C (ITS90)' 9.845 23.027 4 Conductivity S/m 2.90146 3.88098 5 Conductance:Specific S/m 3.02063 5.07197 6 Salinity PSS-78 18.7 32.34 7 Speed:Sound m/s 1486.4 1512.64 8 Density kg/m^3 1011.618 1025.002 $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 : 173 LATITUDE : 49 47.12300 N ! (deg min) LONGITUDE : 126 26.87060 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_153619 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 77 77 MERGEHDR 1.3 2026/01/16 09:53:56 77 77 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 77 77 CALIB 12.1 2026/01/16 09:56:52 77 77 CLEAN 5.3 2026/01/16 09:57:52 77 77 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 23.027 2.90146 3.02063 18.70 1511.79 1011.618 0.45 0.45 22.903 3.04148 3.17461 19.75 1512.60 1012.443 0.75 0.76 22.667 3.08167 3.23247 20.15 1512.41 1012.804 1.05 1.06 22.632 3.11036 3.26499 20.37 1512.56 1012.983 1.35 1.36 22.592 3.13186 3.29036 20.55 1512.64 1013.126 1.65 1.66 22.460 3.15475 3.32359 20.77 1512.54 1013.334 1.95 1.96 22.044 3.21243 3.41432 21.39 1512.09 1013.913 2.25 2.26 21.599 3.30626 3.54754 22.31 1511.88 1014.723 2.55 2.57 21.161 3.38944 3.67131 23.17 1511.61 1015.483 2.85 2.87 20.795 3.41997 3.73398 23.60 1511.07 1015.903 3.15 3.17 20.489 3.44433 3.78591 23.95 1510.61 1016.252 3.45 3.47 20.281 3.47010 3.83177 24.27 1510.37 1016.546 3.75 3.77 19.539 3.53551 3.96898 25.22 1509.31 1017.448 4.05 4.07 18.310 3.76550 4.34713 27.85 1508.67 1019.753 4.35 4.37 17.621 3.88098 4.55286 29.29 1508.25 1021.015 4.65 4.67 16.687 3.86396 4.63448 29.83 1506.04 1021.644 4.95 4.97 15.411 3.83396 4.74375 30.54 1502.87 1022.470 5.25 5.27 14.819 3.80592 4.77903 30.75 1501.24 1022.761 5.55 5.57 14.304 3.77579 4.80328 30.89 1499.73 1022.974 5.85 5.86 13.910 3.75693 4.82775 31.03 1498.62 1023.167 6.15 6.16 13.593 3.73696 4.84154 31.10 1497.66 1023.288 6.45 6.46 13.184 3.72140 4.87299 31.29 1496.53 1023.516 6.75 6.76 12.870 3.70570 4.89264 31.40 1495.61 1023.665 7.05 7.06 12.700 3.69324 4.89821 31.43 1495.07 1023.718 7.35 7.36 12.466 3.68515 4.91799 31.55 1494.42 1023.855 7.65 7.66 12.302 3.67452 4.92534 31.58 1493.91 1023.916 7.95 7.96 12.124 3.66312 4.93365 31.62 1493.35 1023.982 8.25 8.25 11.964 3.65736 4.94715 31.70 1492.90 1024.075 8.55 8.55 11.876 3.65202 4.95172 31.73 1492.63 1024.111 8.85 8.85 11.720 3.63899 4.95505 31.74 1492.10 1024.146 9.15 9.15 11.605 3.62838 4.95614 31.73 1491.70 1024.165 9.45 9.45 11.485 3.62287 4.96482 31.78 1491.35 1024.226 9.75 9.75 11.407 3.61903 4.97023 31.81 1491.12 1024.264 10.05 10.05 11.332 3.61544 4.97560 31.84 1490.89 1024.302 10.35 10.34 11.274 3.61292 4.98005 31.86 1490.73 1024.333 10.65 10.64 11.210 3.60989 4.98467 31.89 1490.54 1024.366 10.95 10.94 11.148 3.60728 4.98955 31.92 1490.36 1024.399 11.25 11.24 11.114 3.60443 4.99030 31.92 1490.25 1024.408 11.55 11.54 11.087 3.60183 4.99054 31.92 1490.15 1024.413 11.85 11.84 11.044 3.60088 4.99508 31.94 1490.04 1024.443 12.15 12.14 11.014 3.60036 4.99858 31.96 1489.96 1024.466 12.45 12.43 10.986 3.59877 5.00026 31.97 1489.88 1024.479 12.75 12.73 10.961 3.59748 5.00196 31.98 1489.81 1024.492 13.05 13.03 10.924 3.59424 5.00256 31.98 1489.68 1024.499 13.35 13.33 10.898 3.59191 5.00289 31.98 1489.59 1024.505 13.65 13.63 10.866 3.59038 5.00528 31.99 1489.50 1024.522 13.95 13.93 10.827 3.58797 5.00731 32.00 1489.38 1024.537 14.25 14.22 10.786 3.58584 5.01011 32.02 1489.26 1024.557 14.55 14.52 10.744 3.58294 5.01189 32.03 1489.12 1024.572 14.85 14.82 10.702 3.58054 5.01449 32.04 1488.99 1024.591 15.15 15.12 10.656 3.57810 5.01750 32.06 1488.85 1024.612 15.45 15.42 10.614 3.57648 5.02114 32.08 1488.73 1024.637 15.75 15.72 10.550 3.57248 5.02453 32.09 1488.53 1024.662 16.05 16.02 10.495 3.56719 5.02490 32.09 1488.33 1024.669 16.35 16.31 10.451 3.56574 5.02911 32.11 1488.21 1024.697 16.65 16.61 10.403 3.56346 5.03268 32.13 1488.07 1024.722 16.95 16.91 10.355 3.55992 5.03449 32.14 1487.91 1024.736 17.25 17.21 10.299 3.55760 5.03922 32.16 1487.74 1024.768 17.55 17.51 10.244 3.55287 5.04039 32.17 1487.55 1024.779 17.85 17.81 10.207 3.55043 5.04227 32.17 1487.43 1024.793 18.15 18.10 10.162 3.54895 5.04650 32.20 1487.31 1024.821 18.45 18.40 10.132 3.54720 5.04834 32.21 1487.21 1024.834 18.75 18.70 10.102 3.54602 5.05096 32.22 1487.13 1024.852 19.05 19.00 10.075 3.54497 5.05340 32.24 1487.05 1024.869 19.35 19.30 10.061 3.54522 5.05574 32.25 1487.03 1024.884 19.65 19.60 10.042 3.54461 5.05763 32.26 1486.97 1024.897 19.95 19.89 10.022 3.54487 5.06098 32.28 1486.93 1024.918 20.25 20.19 9.990 3.54308 5.06302 32.29 1486.83 1024.932 20.55 20.49 9.988 3.54119 5.06050 32.27 1486.81 1024.920 20.85 20.79 9.977 3.53969 5.06008 32.27 1486.77 1024.919 21.15 21.09 9.959 3.53931 5.06214 32.28 1486.72 1024.933 21.45 21.39 9.939 3.53776 5.06274 32.28 1486.66 1024.939 21.75 21.68 9.921 3.53694 5.06418 32.29 1486.61 1024.949 22.05 21.98 9.899 3.53575 5.06574 32.30 1486.54 1024.961 22.35 22.28 9.875 3.53570 5.06903 32.32 1486.48 1024.981 22.65 22.58 9.855 3.53478 5.07064 32.33 1486.43 1024.993 22.96 22.89 9.845 3.53466 5.07197 32.34 1486.40 1025.002