*2026/01/16 10:37:53.91 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 22:34:01.000 END TIME : UTC 2025/05/08 22:34:23.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 115 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.49 2 Depth metres 0.15 34.35 3 Temperature 'deg C (ITS90)' 9.143 14.105 4 Conductivity S/m 2.84392 3.43679 5 Conductance:Specific S/m 3.64289 5.03185 6 Salinity PSS-78 22.73 31.95 7 Speed:Sound m/s 1483.23 1492.22 8 Density kg/m^3 1016.728 1024.866 $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 : 143 LATITUDE : 48 58.16810 N ! (deg min) LONGITUDE : 125 5.08360 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_223401 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 115 115 MERGEHDR 1.3 2026/01/16 10:35:44 115 115 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 115 115 CALIB 12.1 2026/01/16 10:37:17 115 115 CLEAN 5.3 2026/01/16 10:37:53 115 115 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:41 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 14.012 2.85884 3.66406 22.88 1489.33 1016.841 0.45 0.45 14.034 2.84392 3.64289 22.73 1489.24 1016.728 0.75 0.75 14.052 2.86399 3.66689 22.90 1489.50 1016.853 1.05 1.05 14.080 2.87232 3.67492 22.96 1489.66 1016.893 1.35 1.35 14.105 2.87692 3.67846 22.98 1489.78 1016.909 1.65 1.65 14.100 2.93661 3.75527 23.51 1490.38 1017.318 1.95 1.95 14.023 2.97323 3.80963 23.88 1490.56 1017.619 2.25 2.26 13.837 3.08494 3.97168 24.99 1491.24 1018.511 2.55 2.56 13.715 3.19082 4.12087 26.02 1492.05 1019.330 2.85 2.86 13.507 3.25644 4.22837 26.76 1492.22 1019.939 3.15 3.15 13.280 3.29342 4.30172 27.26 1492.04 1020.367 3.45 3.45 13.152 3.31618 4.34599 27.56 1491.97 1020.625 3.75 3.75 12.807 3.33140 4.40575 27.95 1491.26 1020.994 4.05 4.05 12.234 3.35124 4.50027 28.57 1490.03 1021.577 4.35 4.35 11.928 3.37075 4.56396 28.99 1489.47 1021.959 4.65 4.65 11.737 3.39210 4.61678 29.34 1489.23 1022.268 4.95 4.95 11.303 3.40578 4.69072 29.82 1488.29 1022.716 5.25 5.25 10.834 3.40684 4.75364 30.21 1487.10 1023.104 5.55 5.55 10.615 3.40760 4.78389 30.40 1486.55 1023.289 5.85 5.85 10.442 3.40974 4.81032 30.57 1486.14 1023.448 6.15 6.15 10.281 3.40949 4.83192 30.70 1485.72 1023.580 6.45 6.45 10.149 3.40879 4.84907 30.81 1485.38 1023.685 6.75 6.74 10.047 3.40806 4.86213 30.89 1485.11 1023.765 7.05 7.04 9.967 3.40718 4.87192 30.94 1484.90 1023.825 7.35 7.34 9.889 3.40570 4.88079 31.00 1484.68 1023.880 7.65 7.64 9.822 3.40535 4.88961 31.05 1484.51 1023.934 7.95 7.94 9.779 3.40496 4.89516 31.08 1484.39 1023.968 8.25 8.24 9.728 3.40388 4.90078 31.12 1484.25 1024.004 8.55 8.54 9.670 3.40299 4.90765 31.16 1484.10 1024.046 8.85 8.83 9.608 3.40061 4.91309 31.19 1483.91 1024.081 9.15 9.13 9.570 3.39977 4.91719 31.21 1483.81 1024.107 9.45 9.43 9.539 3.39932 4.92099 31.23 1483.72 1024.130 9.75 9.73 9.492 3.39845 4.92639 31.27 1483.60 1024.164 10.05 10.03 9.455 3.39809 4.93113 31.29 1483.50 1024.193 10.35 10.33 9.416 3.39855 4.93752 31.33 1483.41 1024.232 10.65 10.63 9.387 3.39878 4.94192 31.36 1483.34 1024.259 10.95 10.93 9.360 3.39869 4.94572 31.38 1483.27 1024.282 11.25 11.22 9.344 3.39861 4.94784 31.40 1483.23 1024.296 11.55 11.52 9.337 3.39949 4.95023 31.41 1483.23 1024.311 11.85 11.82 9.333 3.39947 4.95071 31.41 1483.23 1024.315 12.15 12.12 9.325 3.40082 4.95378 31.44 1483.23 1024.333 12.45 12.42 9.318 3.40195 4.95646 31.45 1483.23 1024.350 12.75 12.72 9.312 3.40290 4.95872 31.47 1483.23 1024.364 13.05 13.01 9.302 3.40436 4.96230 31.49 1483.23 1024.385 13.35 13.31 9.294 3.40633 4.96637 31.52 1483.23 1024.409 13.65 13.61 9.292 3.40790 4.96895 31.54 1483.25 1024.425 13.95 13.91 9.292 3.41052 4.97274 31.56 1483.29 1024.447 14.25 14.21 9.288 3.41167 4.97508 31.58 1483.30 1024.461 14.55 14.51 9.283 3.41155 4.97559 31.58 1483.29 1024.466 14.85 14.81 9.282 3.41411 4.97945 31.61 1483.32 1024.488 15.15 15.10 9.284 3.41405 4.97914 31.61 1483.33 1024.488 15.45 15.40 9.287 3.41541 4.98064 31.62 1483.36 1024.497 15.75 15.70 9.289 3.41613 4.98139 31.62 1483.38 1024.502 16.05 16.00 9.288 3.41678 4.98240 31.63 1483.39 1024.509 16.35 16.30 9.285 3.41787 4.98450 31.64 1483.40 1024.522 16.65 16.60 9.282 3.41950 4.98727 31.66 1483.42 1024.539 16.95 16.90 9.280 3.42035 4.98880 31.67 1483.43 1024.548 17.25 17.19 9.280 3.42101 4.98980 31.68 1483.44 1024.555 17.55 17.49 9.280 3.42092 4.98960 31.68 1483.45 1024.555 17.85 17.79 9.281 3.42141 4.99020 31.68 1483.46 1024.560 18.15 18.09 9.280 3.42141 4.99044 31.68 1483.46 1024.563 18.45 18.39 9.275 3.42188 4.99179 31.69 1483.46 1024.572 18.75 18.69 9.272 3.42283 4.99362 31.71 1483.47 1024.583 19.05 18.99 9.271 3.42347 4.99467 31.71 1483.48 1024.590 19.35 19.28 9.268 3.42433 4.99634 31.72 1483.49 1024.601 19.65 19.58 9.265 3.42416 4.99652 31.72 1483.48 1024.603 19.95 19.88 9.265 3.42443 4.99699 31.73 1483.49 1024.607 20.25 20.18 9.263 3.42534 4.99865 31.74 1483.50 1024.618 20.55 20.48 9.261 3.42587 4.99959 31.75 1483.51 1024.624 20.85 20.78 9.260 3.42593 4.99991 31.75 1483.51 1024.627 21.15 21.07 9.259 3.42619 5.00036 31.75 1483.52 1024.631 21.45 21.37 9.254 3.42683 5.00202 31.76 1483.52 1024.641 21.75 21.67 9.251 3.42657 5.00212 31.76 1483.51 1024.643 22.05 21.97 9.249 3.42673 5.00265 31.76 1483.51 1024.648 22.35 22.27 9.249 3.42635 5.00210 31.76 1483.51 1024.646 22.65 22.57 9.248 3.42714 5.00348 31.77 1483.52 1024.655 22.95 22.87 9.246 3.42738 5.00409 31.77 1483.52 1024.660 23.25 23.16 9.244 3.42750 5.00445 31.78 1483.53 1024.663 23.55 23.46 9.245 3.42799 5.00504 31.78 1483.54 1024.667 23.85 23.76 9.239 3.42766 5.00550 31.78 1483.52 1024.672 24.15 24.06 9.239 3.42738 5.00514 31.78 1483.53 1024.671 24.45 24.36 9.235 3.42882 5.00773 31.80 1483.54 1024.687 24.75 24.66 9.228 3.42812 5.00770 31.80 1483.52 1024.688 25.05 24.95 9.224 3.42881 5.00932 31.81 1483.52 1024.698 25.35 25.25 9.221 3.42877 5.00981 31.81 1483.51 1024.703 25.65 25.55 9.221 3.42967 5.01111 31.82 1483.53 1024.711 25.95 25.85 9.213 3.43045 5.01335 31.83 1483.53 1024.725 26.25 26.15 9.211 3.43053 5.01379 31.84 1483.53 1024.729 26.55 26.45 9.208 3.43201 5.01638 31.85 1483.54 1024.744 26.85 26.75 9.205 3.43240 5.01738 31.86 1483.54 1024.751 27.15 27.04 9.207 3.43151 5.01582 31.85 1483.54 1024.744 27.45 27.34 9.200 3.43156 5.01696 31.86 1483.53 1024.752 27.75 27.64 9.192 3.43121 5.01758 31.86 1483.51 1024.757 28.05 27.94 9.189 3.43299 5.02062 31.88 1483.53 1024.775 28.35 28.24 9.187 3.43394 5.02237 31.89 1483.54 1024.786 28.65 28.54 9.184 3.43339 5.02198 31.89 1483.53 1024.785 28.95 28.83 9.173 3.43365 5.02388 31.90 1483.51 1024.797 29.25 29.13 9.167 3.43345 5.02446 31.90 1483.50 1024.802 29.55 29.43 9.166 3.43358 5.02483 31.91 1483.50 1024.805 29.85 29.73 9.164 3.43344 5.02497 31.91 1483.50 1024.808 30.15 30.03 9.162 3.43304 5.02461 31.90 1483.49 1024.807 30.45 30.33 9.163 3.43376 5.02559 31.91 1483.51 1024.814 30.75 30.62 9.164 3.43304 5.02439 31.90 1483.51 1024.808 31.05 30.92 9.168 3.43329 5.02410 31.90 1483.53 1024.808 31.35 31.22 9.172 3.43368 5.02410 31.90 1483.55 1024.809 31.65 31.52 9.172 3.43298 5.02311 31.89 1483.54 1024.805 31.95 31.82 9.173 3.43360 5.02384 31.90 1483.56 1024.810 32.25 32.12 9.175 3.43396 5.02415 31.90 1483.57 1024.813 32.55 32.42 9.176 3.43406 5.02407 31.90 1483.58 1024.813 32.85 32.71 9.173 3.43397 5.02443 31.90 1483.58 1024.817 33.15 33.01 9.165 3.43414 5.02576 31.91 1483.56 1024.826 33.45 33.31 9.158 3.43538 5.02860 31.93 1483.57 1024.843 33.75 33.61 9.153 3.43511 5.02902 31.93 1483.55 1024.847 34.05 33.91 9.143 3.43602 5.03180 31.95 1483.54 1024.864 34.49 34.35 9.150 3.43679 5.03185 31.95 1483.58 1024.866