*2026/01/16 10:37:57.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/27 00:00:06.000 END TIME : UTC 2025/06/27 00:00:31.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 128 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.28 2 Depth metres 0.15 38.1 3 Temperature 'deg C (ITS90)' 9.519 15.734 4 Conductivity S/m 3.36001 3.56524 5 Conductance:Specific S/m 4.12429 5.00929 6 Salinity PSS-78 26.17 31.84 7 Speed:Sound m/s 1484.85 1498.77 8 Density kg/m^3 1019.023 1024.736 $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 : 213 LATITUDE : 48 52.99380 N ! (deg min) LONGITUDE : 125 7.21430 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250627_000006 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 128 128 MERGEHDR 1.3 2026/01/16 10:35:48 128 128 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:51 128 128 CALIB 12.1 2026/01/16 10:37:21 128 128 CLEAN 5.3 2026/01/16 10:37:57 128 128 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:21 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 15.734 3.36001 4.12429 26.17 1498.77 1019.023 0.45 0.45 15.542 3.38249 4.17161 26.49 1498.54 1019.312 0.75 0.75 15.483 3.37854 4.17282 26.49 1498.36 1019.329 1.05 1.05 15.419 3.37586 4.17604 26.51 1498.18 1019.359 1.35 1.35 15.375 3.38202 4.18826 26.60 1498.14 1019.433 1.65 1.65 15.360 3.39756 4.20908 26.74 1498.27 1019.549 1.95 1.95 15.216 3.41548 4.24646 27.00 1498.10 1019.776 2.25 2.25 14.114 3.50958 4.48639 28.62 1496.41 1021.251 2.55 2.55 13.681 3.54137 4.57763 29.23 1495.70 1021.811 2.85 2.85 13.623 3.56508 4.61526 29.50 1495.82 1022.026 3.15 3.15 13.137 3.56524 4.67430 29.88 1494.64 1022.415 3.45 3.45 12.569 3.56074 4.73896 30.28 1493.21 1022.841 3.75 3.75 12.261 3.55511 4.77051 30.48 1492.39 1023.051 4.05 4.04 11.970 3.54984 4.80098 30.67 1491.61 1023.251 4.35 4.34 11.730 3.54528 4.82620 30.82 1490.97 1023.416 4.65 4.64 11.563 3.54177 4.84338 30.93 1490.52 1023.528 4.95 4.94 11.433 3.54010 4.85834 31.02 1490.18 1023.624 5.25 5.24 11.381 3.53766 4.86198 31.04 1490.03 1023.651 5.55 5.54 11.339 3.53679 4.86640 31.07 1489.92 1023.680 5.85 5.84 11.283 3.53544 4.87198 31.10 1489.77 1023.717 6.15 6.14 11.239 3.53384 4.87577 31.12 1489.64 1023.743 6.45 6.43 11.199 3.53313 4.88011 31.15 1489.54 1023.772 6.75 6.73 11.168 3.53291 4.88406 31.17 1489.46 1023.798 7.05 7.03 11.135 3.53100 4.88589 31.18 1489.36 1023.812 7.35 7.33 11.101 3.53008 4.88923 31.20 1489.27 1023.835 7.65 7.63 11.074 3.52953 4.89206 31.22 1489.20 1023.854 7.95 7.93 11.031 3.53014 4.89882 31.26 1489.10 1023.896 8.25 8.23 10.997 3.52757 4.89988 31.26 1488.99 1023.906 8.55 8.53 10.961 3.52461 4.90054 31.26 1488.87 1023.914 8.85 8.82 10.916 3.52127 4.90208 31.27 1488.73 1023.928 9.15 9.12 10.881 3.51886 4.90356 31.28 1488.61 1023.940 9.45 9.42 10.847 3.51730 4.90602 31.29 1488.51 1023.958 9.75 9.72 10.794 3.51597 4.91133 31.32 1488.37 1023.993 10.05 10.02 10.756 3.51430 4.91430 31.34 1488.26 1024.013 10.35 10.32 10.729 3.51263 4.91571 31.34 1488.17 1024.025 10.65 10.62 10.693 3.51067 4.91794 31.36 1488.06 1024.041 10.95 10.91 10.657 3.50926 4.92082 31.37 1487.96 1024.061 11.25 11.21 10.624 3.50786 4.92349 31.39 1487.87 1024.080 11.55 11.51 10.592 3.50750 4.92730 31.41 1487.79 1024.104 11.85 11.81 10.569 3.50625 4.92881 31.42 1487.72 1024.116 12.15 12.11 10.545 3.50454 4.92969 31.42 1487.64 1024.124 12.45 12.41 10.528 3.50359 4.93069 31.43 1487.59 1024.132 12.75 12.71 10.512 3.50353 4.93285 31.44 1487.55 1024.146 13.05 13.01 10.470 3.50121 4.93548 31.45 1487.42 1024.165 13.35 13.30 10.396 3.49906 4.94271 31.49 1487.22 1024.212 13.65 13.60 10.324 3.49625 4.94887 31.53 1487.00 1024.252 13.95 13.90 10.276 3.48901 4.94531 31.50 1486.80 1024.237 14.25 14.20 10.240 3.48375 4.94288 31.48 1486.65 1024.227 14.55 14.50 10.191 3.48208 4.94744 31.50 1486.51 1024.257 14.85 14.80 10.143 3.48069 4.95221 31.53 1486.37 1024.288 15.15 15.10 10.097 3.48002 4.95771 31.56 1486.25 1024.323 15.45 15.39 10.062 3.47857 4.96063 31.58 1486.15 1024.342 15.75 15.69 10.043 3.47765 4.96196 31.59 1486.09 1024.352 16.05 15.99 10.033 3.47777 4.96361 31.60 1486.07 1024.363 16.35 16.29 10.021 3.47734 4.96464 31.60 1486.04 1024.371 16.65 16.59 10.011 3.47750 4.96627 31.61 1486.02 1024.382 16.95 16.89 10.002 3.47711 4.96696 31.62 1486.00 1024.387 17.25 17.19 9.995 3.47685 4.96758 31.62 1485.98 1024.393 17.55 17.48 9.990 3.47691 4.96846 31.62 1485.98 1024.399 17.85 17.78 9.984 3.47643 4.96865 31.62 1485.96 1024.402 18.15 18.08 9.977 3.47583 4.96868 31.62 1485.94 1024.404 18.45 18.38 9.971 3.47551 4.96912 31.63 1485.92 1024.408 18.75 18.68 9.963 3.47484 4.96938 31.63 1485.90 1024.411 19.05 18.98 9.948 3.47386 4.96999 31.63 1485.86 1024.417 19.35 19.27 9.932 3.47325 4.97151 31.64 1485.81 1024.427 19.65 19.57 9.917 3.47089 4.97021 31.63 1485.75 1024.422 19.95 19.87 9.902 3.47142 4.97309 31.64 1485.72 1024.440 20.25 20.17 9.889 3.47066 4.97385 31.65 1485.68 1024.446 20.55 20.47 9.887 3.47132 4.97513 31.66 1485.69 1024.455 20.85 20.77 9.884 3.47174 4.97610 31.66 1485.69 1024.462 21.15 21.07 9.883 3.47081 4.97495 31.65 1485.68 1024.457 21.45 21.36 9.880 3.47139 4.97624 31.66 1485.69 1024.465 21.75 21.66 9.878 3.47164 4.97684 31.67 1485.69 1024.470 22.05 21.96 9.877 3.47161 4.97696 31.67 1485.69 1024.472 22.35 22.26 9.877 3.47125 4.97638 31.66 1485.69 1024.470 22.65 22.56 9.876 3.47136 4.97669 31.67 1485.70 1024.473 22.95 22.86 9.876 3.47126 4.97656 31.66 1485.70 1024.474 23.25 23.16 9.876 3.47128 4.97658 31.66 1485.71 1024.475 23.55 23.45 9.873 3.47147 4.97725 31.67 1485.71 1024.480 23.85 23.75 9.866 3.47141 4.97823 31.67 1485.69 1024.487 24.15 24.05 9.856 3.47144 4.97975 31.68 1485.67 1024.497 24.45 24.35 9.849 3.47216 4.98170 31.70 1485.67 1024.510 24.75 24.65 9.841 3.47107 4.98136 31.69 1485.64 1024.510 25.05 24.95 9.825 3.47094 4.98347 31.71 1485.60 1024.524 25.35 25.25 9.804 3.47007 4.98515 31.71 1485.54 1024.535 25.65 25.54 9.789 3.46889 4.98566 31.72 1485.49 1024.540 25.95 25.84 9.774 3.46868 4.98746 31.73 1485.45 1024.552 26.25 26.14 9.768 3.46796 4.98735 31.73 1485.43 1024.554 26.55 26.44 9.761 3.46831 4.98875 31.73 1485.43 1024.563 26.85 26.74 9.754 3.46772 4.98902 31.73 1485.40 1024.566 27.15 27.04 9.751 3.46763 4.98922 31.74 1485.40 1024.569 27.45 27.33 9.746 3.46791 4.99036 31.74 1485.40 1024.576 27.75 27.63 9.741 3.46729 4.99020 31.74 1485.38 1024.577 28.05 27.93 9.741 3.46706 4.98992 31.74 1485.38 1024.577 28.35 28.23 9.738 3.46678 4.98992 31.74 1485.38 1024.578 28.65 28.53 9.735 3.46732 4.99116 31.75 1485.38 1024.587 28.95 28.83 9.729 3.46660 4.99088 31.74 1485.36 1024.587 29.25 29.13 9.726 3.46684 4.99169 31.75 1485.36 1024.593 29.55 29.42 9.721 3.46664 4.99210 31.75 1485.35 1024.596 29.85 29.72 9.718 3.46646 4.99228 31.75 1485.35 1024.599 30.15 30.02 9.714 3.46654 4.99293 31.76 1485.34 1024.604 30.45 30.32 9.711 3.46616 4.99284 31.75 1485.33 1024.605 30.75 30.62 9.710 3.46593 4.99268 31.75 1485.33 1024.605 31.05 30.92 9.704 3.46630 4.99402 31.76 1485.33 1024.614 31.35 31.21 9.703 3.46629 4.99424 31.76 1485.33 1024.617 31.65 31.51 9.695 3.46568 4.99454 31.76 1485.30 1024.620 31.95 31.81 9.687 3.46615 4.99629 31.78 1485.30 1024.631 32.25 32.11 9.681 3.46516 4.99573 31.77 1485.27 1024.630 32.55 32.41 9.666 3.46423 4.99653 31.77 1485.23 1024.636 32.85 32.71 9.651 3.46361 4.99783 31.78 1485.19 1024.646 33.15 33.01 9.637 3.46314 4.99924 31.79 1485.15 1024.656 33.45 33.30 9.617 3.46171 5.00004 31.79 1485.08 1024.662 33.75 33.60 9.601 3.46145 5.00199 31.80 1485.04 1024.675 34.05 33.90 9.585 3.46072 5.00317 31.81 1485.00 1024.684 34.35 34.20 9.580 3.45954 5.00217 31.80 1484.98 1024.680 34.65 34.50 9.580 3.45936 5.00193 31.80 1484.98 1024.680 34.95 34.80 9.569 3.45912 5.00319 31.81 1484.95 1024.689 35.25 35.10 9.553 3.45905 5.00549 31.82 1484.91 1024.704 35.55 35.39 9.547 3.45880 5.00599 31.82 1484.90 1024.708 35.85 35.69 9.545 3.45803 5.00505 31.82 1484.89 1024.704 36.15 35.99 9.541 3.45892 5.00698 31.83 1484.90 1024.716 36.45 36.29 9.534 3.45819 5.00693 31.83 1484.87 1024.718 36.75 36.59 9.530 3.45804 5.00728 31.83 1484.87 1024.721 37.05 36.89 9.528 3.45752 5.00690 31.83 1484.86 1024.720 37.35 37.18 9.522 3.45823 5.00880 31.84 1484.86 1024.732 37.65 37.48 9.519 3.45836 5.00929 31.84 1484.86 1024.736 37.95 37.78 9.519 3.45780 5.00850 31.84 1484.85 1024.733 38.28 38.10 9.519 3.45752 5.00807 31.83 1484.86 1024.732