*2026/01/16 10:37:55.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/23 22:42:23.000 END TIME : UTC 2025/06/23 22:42:47.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 123 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.79 2 Depth metres 0.15 36.74 3 Temperature 'deg C (ITS90)' 11.955 15.852 4 Conductivity S/m 2.70976 3.3138 5 Conductance:Specific S/m 3.31659 4.43212 6 Salinity PSS-78 20.58 28.09 7 Speed:Sound m/s 1488.19 1493.89 8 Density kg/m^3 1014.722 1021.328 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 175 LATITUDE : 49 7.54890 N ! (deg min) LONGITUDE : 125 44.41280 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250623_224223 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 123 123 MERGEHDR 1.3 2026/01/16 10:35:45 123 123 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:44 123 123 CALIB 12.1 2026/01/16 10:37:19 123 123 CLEAN 5.3 2026/01/16 10:37:55 123 123 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 10:36:44 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 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 10:37:42 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 15.852 2.70976 3.31659 20.58 1492.73 1014.722 0.45 0.45 14.784 3.10800 3.90606 24.59 1493.89 1018.011 0.75 0.75 14.528 3.14417 3.97710 25.07 1493.61 1018.432 1.05 1.05 14.402 3.19191 4.05042 25.58 1493.79 1018.845 1.35 1.35 14.334 3.19516 4.06156 25.65 1493.65 1018.916 1.65 1.65 14.316 3.19767 4.06659 25.68 1493.64 1018.947 1.95 1.95 14.078 3.20540 4.10129 25.91 1493.12 1019.170 2.25 2.25 13.842 3.20785 4.12931 26.09 1492.55 1019.356 2.55 2.55 13.571 3.20910 4.16001 26.29 1491.87 1019.561 2.85 2.85 13.367 3.21112 4.18475 26.45 1491.38 1019.723 3.15 3.15 13.248 3.21459 4.20225 26.56 1491.11 1019.834 3.45 3.45 13.173 3.22487 4.22403 26.71 1491.03 1019.963 3.75 3.75 13.110 3.22708 4.23394 26.77 1490.90 1020.026 4.05 4.05 12.986 3.22730 4.24802 26.86 1490.59 1020.119 4.35 4.35 12.793 3.21892 4.25863 26.92 1490.00 1020.202 4.65 4.65 12.668 3.21332 4.26534 26.96 1489.62 1020.255 4.95 4.95 12.601 3.21233 4.27161 27.00 1489.44 1020.298 5.25 5.25 12.555 3.21055 4.27446 27.01 1489.31 1020.320 5.55 5.55 12.490 3.20950 4.28050 27.05 1489.13 1020.362 5.85 5.85 12.419 3.20768 4.28612 27.08 1488.94 1020.402 6.15 6.15 12.409 3.20735 4.28684 27.09 1488.91 1020.408 6.45 6.45 12.350 3.20779 4.29419 27.13 1488.77 1020.456 6.75 6.75 12.313 3.21037 4.30197 27.18 1488.70 1020.504 7.05 7.05 12.270 3.21115 4.30800 27.22 1488.60 1020.543 7.35 7.35 12.291 3.21529 4.31114 27.25 1488.71 1020.558 7.65 7.65 12.301 3.22505 4.32298 27.33 1488.85 1020.622 7.95 7.95 12.329 3.22818 4.32400 27.34 1488.96 1020.626 8.25 8.25 12.347 3.23156 4.32635 27.36 1489.05 1020.638 8.55 8.55 12.338 3.23257 4.32878 27.37 1489.04 1020.653 8.85 8.85 12.338 3.23217 4.32830 27.37 1489.04 1020.652 9.15 9.15 12.324 3.23373 4.33203 27.39 1489.03 1020.675 9.45 9.45 12.317 3.23523 4.33474 27.41 1489.03 1020.692 9.75 9.75 12.284 3.23294 4.33554 27.42 1488.93 1020.701 10.05 10.05 12.241 3.24002 4.35007 27.51 1488.90 1020.786 10.35 10.34 12.205 3.24305 4.35837 27.57 1488.84 1020.837 10.65 10.64 12.174 3.24327 4.36228 27.59 1488.77 1020.862 10.95 10.94 12.162 3.24585 4.36722 27.63 1488.77 1020.892 11.25 11.24 12.160 3.24513 4.36646 27.62 1488.76 1020.889 11.55 11.54 12.152 3.24485 4.36701 27.62 1488.74 1020.894 11.85 11.84 12.147 3.24550 4.36840 27.63 1488.75 1020.904 12.15 12.14 12.152 3.24641 4.36912 27.64 1488.77 1020.908 12.45 12.44 12.157 3.24560 4.36742 27.63 1488.78 1020.900 12.75 12.74 12.160 3.24486 4.36604 27.62 1488.79 1020.893 13.05 13.04 12.161 3.24565 4.36706 27.62 1488.80 1020.900 13.35 13.34 12.159 3.24662 4.36854 27.64 1488.81 1020.910 13.65 13.64 12.154 3.24734 4.37007 27.65 1488.81 1020.920 13.95 13.94 12.136 3.24972 4.37546 27.68 1488.80 1020.952 14.25 14.24 12.100 3.24669 4.37560 27.68 1488.67 1020.958 14.55 14.54 12.076 3.24383 4.37457 27.67 1488.58 1020.957 14.85 14.84 12.058 3.23942 4.37076 27.64 1488.49 1020.939 15.15 15.14 12.040 3.23704 4.36965 27.63 1488.42 1020.936 15.45 15.44 12.016 3.23607 4.37115 27.64 1488.36 1020.948 15.75 15.74 11.989 3.23549 4.37356 27.65 1488.28 1020.966 16.05 16.04 11.969 3.23449 4.37460 27.66 1488.22 1020.975 16.35 16.34 11.959 3.23506 4.37659 27.67 1488.21 1020.988 16.65 16.64 11.955 3.23405 4.37568 27.67 1488.19 1020.985 16.95 16.93 11.961 3.23468 4.37582 27.67 1488.22 1020.986 17.25 17.23 11.989 3.23974 4.37932 27.69 1488.36 1021.003 17.55 17.53 11.997 3.24535 4.38592 27.74 1488.44 1021.039 17.85 17.83 12.001 3.24798 4.38904 27.76 1488.49 1021.057 18.15 18.13 12.009 3.24921 4.38975 27.77 1488.53 1021.062 18.45 18.43 12.009 3.25052 4.39159 27.78 1488.55 1021.073 18.75 18.73 12.004 3.25017 4.39167 27.78 1488.53 1021.075 19.05 19.03 11.999 3.24999 4.39194 27.78 1488.53 1021.078 19.35 19.33 12.004 3.25213 4.39429 27.80 1488.57 1021.092 19.65 19.63 12.000 3.25181 4.39438 27.80 1488.56 1021.094 19.95 19.93 12.011 3.25306 4.39473 27.80 1488.61 1021.096 20.25 20.23 12.036 3.25877 4.39950 27.84 1488.74 1021.120 20.55 20.53 12.063 3.26309 4.40210 27.86 1488.86 1021.133 20.85 20.83 12.086 3.26546 4.40252 27.86 1488.95 1021.134 21.15 21.13 12.102 3.26609 4.40148 27.86 1489.01 1021.128 21.45 21.43 12.122 3.26519 4.39794 27.83 1489.05 1021.107 21.75 21.73 12.136 3.26840 4.40061 27.85 1489.13 1021.122 22.05 22.03 12.135 3.26631 4.39783 27.83 1489.11 1021.108 22.35 22.33 12.138 3.26690 4.39830 27.84 1489.13 1021.111 22.65 22.63 12.153 3.27155 4.40277 27.87 1489.23 1021.135 22.95 22.92 12.151 3.26922 4.39995 27.85 1489.20 1021.122 23.25 23.22 12.145 3.26856 4.39979 27.85 1489.18 1021.123 23.55 23.52 12.139 3.26779 4.39935 27.85 1489.16 1021.122 23.85 23.82 12.142 3.26905 4.40076 27.86 1489.19 1021.131 24.15 24.12 12.134 3.26860 4.40104 27.86 1489.17 1021.134 24.45 24.42 12.132 3.26854 4.40129 27.86 1489.16 1021.137 24.75 24.72 12.141 3.27001 4.40221 27.87 1489.21 1021.143 25.05 25.02 12.144 3.27091 4.40301 27.87 1489.23 1021.148 25.35 25.32 12.146 3.27120 4.40314 27.87 1489.25 1021.150 25.65 25.62 12.152 3.27285 4.40465 27.88 1489.29 1021.158 25.95 25.92 12.159 3.27444 4.40594 27.89 1489.33 1021.166 26.25 26.22 12.165 3.27503 4.40612 27.89 1489.35 1021.167 26.55 26.52 12.170 3.27530 4.40586 27.89 1489.37 1021.167 26.85 26.82 12.177 3.27630 4.40631 27.90 1489.41 1021.170 27.15 27.12 12.191 3.27752 4.40636 27.90 1489.46 1021.170 27.45 27.42 12.224 3.28240 4.40904 27.92 1489.61 1021.182 27.75 27.72 12.240 3.28887 4.41582 27.97 1489.72 1021.218 28.05 28.02 12.246 3.29292 4.42045 28.00 1489.79 1021.244 28.35 28.32 12.259 3.28998 4.41505 27.96 1489.80 1021.214 28.65 28.62 12.260 3.29099 4.41629 27.97 1489.81 1021.222 28.95 28.91 12.260 3.29119 4.41656 27.97 1489.82 1021.225 29.25 29.21 12.271 3.29189 4.41613 27.97 1489.86 1021.222 29.55 29.51 12.291 3.29486 4.41775 27.99 1489.95 1021.230 29.85 29.81 12.307 3.29936 4.42192 28.02 1490.05 1021.252 30.15 30.11 12.307 3.30014 4.42294 28.02 1490.06 1021.259 30.45 30.41 12.305 3.29884 4.42149 28.01 1490.05 1021.253 30.75 30.71 12.306 3.29693 4.41873 27.99 1490.03 1021.239 31.05 31.01 12.313 3.29824 4.41969 28.00 1490.07 1021.245 31.35 31.31 12.316 3.29797 4.41900 28.00 1490.08 1021.242 31.65 31.61 12.314 3.29876 4.42023 28.00 1490.09 1021.250 31.95 31.91 12.314 3.29910 4.42074 28.01 1490.10 1021.254 32.25 32.21 12.317 3.29900 4.42024 28.00 1490.11 1021.252 32.55 32.51 12.319 3.29954 4.42068 28.01 1490.13 1021.256 32.85 32.81 12.328 3.30170 4.42253 28.02 1490.18 1021.266 33.15 33.11 12.329 3.30377 4.42518 28.04 1490.21 1021.281 33.45 33.41 12.331 3.30545 4.42724 28.05 1490.24 1021.294 33.75 33.71 12.337 3.30581 4.42702 28.05 1490.26 1021.293 34.05 34.01 12.343 3.30731 4.42823 28.06 1490.30 1021.300 34.35 34.30 12.354 3.30754 4.42729 28.06 1490.33 1021.295 34.65 34.60 12.358 3.30693 4.42604 28.05 1490.34 1021.289 34.95 34.90 12.359 3.30787 4.42714 28.05 1490.36 1021.296 35.25 35.20 12.364 3.30831 4.42710 28.05 1490.38 1021.297 35.55 35.50 12.368 3.30876 4.42722 28.06 1490.40 1021.298 35.85 35.80 12.367 3.30845 4.42698 28.05 1490.40 1021.298 36.15 36.10 12.372 3.31272 4.43212 28.09 1490.46 1021.327 36.45 36.40 12.386 3.31090 4.42797 28.06 1490.49 1021.304 36.79 36.74 12.384 3.31380 4.43206 28.09 1490.52 1021.328