*2026/01/16 09:57:49.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/25 21:59:10.000 END TIME : UTC 2024/04/25 21:59:25.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 79 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.41 2 Depth metres 0.15 23.37 3 Temperature 'deg C (ITS90)' 10.538 10.754 4 Conductivity S/m 2.9916 3.15271 5 Conductance:Specific S/m 4.20733 4.40891 6 Salinity PSS-78 26.37 27.78 7 Speed:Sound m/s 1481.37 1484.17 8 Density kg/m^3 1020.141 1021.306 $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 : 97 LATITUDE : 49 14.52610 N ! (deg min) LONGITUDE : 125 51.14080 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240425_215910 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:58 79 79 MERGEHDR 1.3 2026/01/16 09:53:50 79 79 HDREDIT2 3.2 2026/01/16 09:55:04 ? ? REMOVECH 8.2 2026/01/16 09:56:16 79 79 CALIB 12.1 2026/01/16 09:56:48 79 79 CLEAN 5.3 2026/01/16 09:57:49 79 79 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:04 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 09:56:16 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 10.552 2.99160 4.20733 26.37 1481.38 1020.141 0.45 0.45 10.547 2.99163 4.20804 26.38 1481.37 1020.146 0.75 0.75 10.542 2.99289 4.21040 26.39 1481.37 1020.160 1.05 1.05 10.538 2.99553 4.21458 26.42 1481.40 1020.185 1.35 1.35 10.539 2.99738 4.21705 26.44 1481.43 1020.199 1.65 1.65 10.546 3.00100 4.22132 26.47 1481.49 1020.223 1.95 1.95 10.546 3.00505 4.22695 26.51 1481.55 1020.254 2.25 2.25 10.552 3.00804 4.23052 26.53 1481.60 1020.274 2.55 2.55 10.561 3.01797 4.24340 26.62 1481.75 1020.344 2.85 2.85 10.570 3.03119 4.26088 26.74 1481.93 1020.439 3.15 3.15 10.587 3.04385 4.27666 26.85 1482.13 1020.524 3.45 3.45 10.603 3.05022 4.28362 26.90 1482.26 1020.561 3.75 3.75 10.611 3.05266 4.28615 26.92 1482.31 1020.575 4.05 4.05 10.615 3.05343 4.28667 26.93 1482.34 1020.579 4.35 4.35 10.619 3.05424 4.28734 26.93 1482.36 1020.584 4.65 4.65 10.622 3.05607 4.28960 26.95 1482.39 1020.597 4.95 4.95 10.623 3.05581 4.28912 26.94 1482.40 1020.595 5.25 5.24 10.626 3.05749 4.29108 26.96 1482.43 1020.607 5.55 5.54 10.631 3.06102 4.29539 26.99 1482.49 1020.631 5.85 5.84 10.631 3.06137 4.29588 26.99 1482.50 1020.635 6.15 6.14 10.636 3.06310 4.29779 27.01 1482.54 1020.646 6.45 6.44 10.638 3.06808 4.30455 27.05 1482.61 1020.684 6.75 6.74 10.642 3.07128 4.30858 27.08 1482.66 1020.706 7.05 7.04 10.648 3.07442 4.31223 27.11 1482.72 1020.727 7.35 7.34 10.658 3.08035 4.31929 27.16 1482.82 1020.766 7.65 7.64 10.672 3.09440 4.33733 27.28 1483.03 1020.863 7.95 7.94 10.690 3.10799 4.35416 27.40 1483.24 1020.954 8.25 8.24 10.695 3.11369 4.36147 27.45 1483.33 1020.994 8.55 8.54 10.703 3.11573 4.36340 27.47 1483.38 1021.005 8.85 8.84 10.710 3.11753 4.36504 27.48 1483.42 1021.015 9.15 9.14 10.716 3.11923 4.36673 27.49 1483.46 1021.025 9.45 9.44 10.718 3.12072 4.36850 27.50 1483.49 1021.035 9.75 9.74 10.720 3.12137 4.36918 27.51 1483.51 1021.040 10.05 10.04 10.720 3.12191 4.36992 27.51 1483.52 1021.045 10.35 10.34 10.723 3.12333 4.37166 27.53 1483.55 1021.056 10.65 10.64 10.724 3.12410 4.37255 27.53 1483.57 1021.062 10.95 10.94 10.726 3.12602 4.37495 27.55 1483.60 1021.076 11.25 11.24 10.730 3.12848 4.37796 27.57 1483.64 1021.093 11.55 11.54 10.731 3.12899 4.37856 27.57 1483.66 1021.097 11.85 11.83 10.731 3.12860 4.37798 27.57 1483.66 1021.096 12.15 12.13 10.731 3.12848 4.37784 27.57 1483.66 1021.096 12.45 12.43 10.732 3.12887 4.37825 27.57 1483.67 1021.099 12.75 12.73 10.732 3.12915 4.37868 27.57 1483.68 1021.103 13.05 13.03 10.732 3.12961 4.37928 27.58 1483.69 1021.108 13.35 13.33 10.732 3.13011 4.37998 27.58 1483.70 1021.113 13.65 13.63 10.732 3.12923 4.37880 27.57 1483.69 1021.108 13.95 13.93 10.732 3.12935 4.37887 27.58 1483.70 1021.109 14.25 14.23 10.733 3.12970 4.37934 27.58 1483.71 1021.113 14.55 14.53 10.734 3.13061 4.38049 27.59 1483.73 1021.120 14.85 14.83 10.734 3.13196 4.38228 27.60 1483.75 1021.131 15.15 15.13 10.736 3.13305 4.38364 27.61 1483.77 1021.140 15.45 15.43 10.735 3.13361 4.38446 27.61 1483.78 1021.146 15.75 15.73 10.736 3.13378 4.38460 27.61 1483.79 1021.148 16.05 16.03 10.736 3.13371 4.38457 27.61 1483.80 1021.149 16.35 16.33 10.737 3.13649 4.38834 27.64 1483.84 1021.170 16.65 16.63 10.738 3.13901 4.39166 27.66 1483.87 1021.189 16.95 16.93 10.740 3.14029 4.39324 27.67 1483.90 1021.199 17.25 17.23 10.742 3.14045 4.39327 27.68 1483.91 1021.201 17.55 17.52 10.742 3.14143 4.39457 27.68 1483.93 1021.209 17.85 17.82 10.743 3.14260 4.39609 27.69 1483.95 1021.218 18.15 18.12 10.746 3.14429 4.39813 27.71 1483.98 1021.230 18.45 18.42 10.748 3.14794 4.40298 27.74 1484.03 1021.258 18.75 18.72 10.751 3.14874 4.40369 27.75 1484.06 1021.262 19.05 19.02 10.752 3.14854 4.40335 27.75 1484.06 1021.262 19.35 19.32 10.753 3.14985 4.40505 27.76 1484.08 1021.272 19.65 19.62 10.753 3.15174 4.40771 27.78 1484.11 1021.288 19.95 19.92 10.753 3.15165 4.40749 27.77 1484.12 1021.288 20.25 20.22 10.752 3.15103 4.40675 27.77 1484.11 1021.285 20.55 20.52 10.752 3.15130 4.40714 27.77 1484.12 1021.289 20.85 20.82 10.752 3.15107 4.40682 27.77 1484.12 1021.288 21.15 21.12 10.751 3.15145 4.40747 27.77 1484.13 1021.293 21.45 21.42 10.753 3.15256 4.40886 27.78 1484.15 1021.302 21.75 21.72 10.752 3.15231 4.40852 27.78 1484.15 1021.301 22.05 22.02 10.753 3.15226 4.40838 27.78 1484.16 1021.302 22.35 22.32 10.754 3.15271 4.40891 27.78 1484.17 1021.306 22.65 22.62 10.754 3.15167 4.40740 27.77 1484.16 1021.299 22.95 22.91 10.752 3.15100 4.40673 27.77 1484.15 1021.297 23.25 23.21 10.752 3.15158 4.40761 27.77 1484.16 1021.303 23.41 23.37 10.751 3.15115 4.40702 27.77 1484.16 1021.300