*2026/01/16 10:37:49.00 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 21:41:28.000 END TIME : UTC 2025/02/20 21:41:52.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 122 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.5 2 Depth metres 0.15 36.33 3 Temperature 'deg C (ITS90)' 8.525 10.37 4 Conductivity S/m 3.1525 3.51656 5 Conductance:Specific S/m 4.69998 4.98933 6 Salinity PSS-78 29.56 31.78 7 Speed:Sound m/s 1477.75 1487.54 8 Density kg/m^3 1022.928 1024.584 $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 : 64 LATITUDE : 50 4.11060 N ! (deg min) LONGITUDE : 127 16.56360 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_214128 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 122 122 MERGEHDR 1.3 2026/01/16 10:35:40 122 122 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:38 122 122 CALIB 12.1 2026/01/16 10:37:12 122 122 CLEAN 5.3 2026/01/16 10:37:49 122 122 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 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 8.525 3.15250 4.70166 29.57 1477.75 1022.937 0.45 0.45 8.542 3.15289 4.69998 29.56 1477.80 1022.928 0.75 0.75 8.570 3.15737 4.70264 29.58 1477.95 1022.943 1.05 1.05 8.610 3.16762 4.71226 29.65 1478.19 1022.995 1.35 1.35 8.643 3.17341 4.71637 29.68 1478.36 1023.018 1.65 1.64 8.683 3.17677 4.71566 29.68 1478.52 1023.014 1.95 1.94 8.748 3.18027 4.71184 29.67 1478.74 1022.992 2.25 2.24 8.824 3.20147 4.73252 29.82 1479.22 1023.102 2.55 2.54 8.848 3.22401 4.76253 30.03 1479.58 1023.267 2.85 2.84 8.897 3.23775 4.77588 30.13 1479.89 1023.339 3.15 3.14 8.964 3.24129 4.77163 30.11 1480.12 1023.314 3.45 3.44 9.000 3.24308 4.76926 30.10 1480.24 1023.301 3.75 3.74 9.012 3.24428 4.76932 30.10 1480.30 1023.302 4.05 4.03 9.018 3.24615 4.77121 30.12 1480.34 1023.313 4.35 4.33 9.020 3.24931 4.77553 30.15 1480.39 1023.338 4.65 4.63 8.983 3.25622 4.79101 30.25 1480.38 1023.425 4.95 4.93 8.812 3.23703 4.78678 30.20 1479.68 1023.411 5.25 5.23 8.683 3.21400 4.77093 30.07 1479.05 1023.330 5.55 5.53 8.633 3.22442 4.79357 30.22 1479.05 1023.457 5.85 5.83 8.630 3.23366 4.80774 30.32 1479.16 1023.536 6.15 6.13 8.661 3.24574 4.82119 30.42 1479.41 1023.610 6.45 6.43 8.691 3.26081 4.83936 30.55 1479.68 1023.709 6.75 6.72 8.730 3.27255 4.85111 30.63 1479.94 1023.773 7.05 7.02 8.796 3.28163 4.85502 30.67 1480.24 1023.793 7.35 7.32 8.874 3.29098 4.85768 30.70 1480.57 1023.806 7.65 7.62 8.932 3.29919 4.86150 30.73 1480.84 1023.826 7.95 7.92 8.995 3.30306 4.85813 30.72 1481.06 1023.806 8.25 8.22 9.094 3.30861 4.85221 30.69 1481.40 1023.770 8.55 8.52 9.239 3.33539 4.87072 30.84 1482.12 1023.866 8.85 8.81 9.334 3.36598 4.90184 31.07 1482.76 1024.033 9.15 9.11 9.445 3.37631 4.90107 31.08 1483.19 1024.025 9.45 9.41 9.552 3.38880 4.90393 31.12 1483.63 1024.036 9.75 9.71 9.613 3.39501 4.90427 31.13 1483.87 1024.036 10.05 10.01 9.672 3.39884 4.90147 31.11 1484.07 1024.018 10.35 10.31 9.730 3.40351 4.89992 31.11 1484.29 1024.008 10.65 10.61 9.772 3.40557 4.89694 31.09 1484.43 1023.990 10.95 10.90 9.803 3.40735 4.89514 31.09 1484.53 1023.979 11.25 11.20 9.828 3.41059 4.89638 31.10 1484.64 1023.986 11.55 11.50 9.854 3.41366 4.89713 31.11 1484.75 1023.990 11.85 11.80 9.875 3.42514 4.91058 31.20 1484.95 1024.064 12.15 12.10 9.873 3.42466 4.91019 31.20 1484.95 1024.063 12.45 12.40 9.881 3.42303 4.90670 31.18 1484.95 1024.044 12.75 12.70 9.875 3.42370 4.90859 31.19 1484.95 1024.057 13.05 13.00 9.855 3.42284 4.91012 31.20 1484.89 1024.067 13.35 13.29 9.835 3.41972 4.90838 31.18 1484.81 1024.060 13.65 13.59 9.797 3.41529 4.90741 31.17 1484.66 1024.059 13.95 13.89 9.767 3.40772 4.90081 31.12 1484.49 1024.025 14.25 14.19 9.739 3.40577 4.90187 31.12 1484.40 1024.034 14.55 14.49 9.720 3.40344 4.90130 31.12 1484.33 1024.033 14.85 14.79 9.718 3.40472 4.90342 31.13 1484.34 1024.047 15.15 15.09 9.713 3.41144 4.91371 31.20 1484.42 1024.105 15.45 15.38 9.716 3.41014 4.91153 31.19 1484.41 1024.094 15.75 15.68 9.750 3.41222 4.90968 31.18 1484.53 1024.083 16.05 15.98 9.805 3.41266 4.90260 31.14 1484.68 1024.042 16.35 16.28 9.853 3.43464 4.92736 31.32 1485.08 1024.176 16.65 16.58 9.885 3.44544 4.93827 31.40 1485.31 1024.236 16.95 16.88 9.930 3.44931 4.93744 31.40 1485.47 1024.229 17.25 17.18 9.974 3.45134 4.93421 31.38 1485.62 1024.210 17.55 17.47 10.028 3.45456 4.93108 31.37 1485.80 1024.191 17.85 17.77 10.074 3.46204 4.93529 31.40 1486.02 1024.212 18.15 18.07 10.109 3.46768 4.93847 31.43 1486.18 1024.229 18.45 18.37 10.115 3.47344 4.94580 31.48 1486.27 1024.270 18.75 18.67 10.121 3.47467 4.94667 31.49 1486.30 1024.275 19.05 18.97 10.127 3.46776 4.93608 31.41 1486.24 1024.218 19.35 19.27 10.121 3.46946 4.93925 31.43 1486.25 1024.237 19.65 19.56 10.095 3.47273 4.94760 31.49 1486.23 1024.286 19.95 19.86 10.093 3.47173 4.94654 31.48 1486.21 1024.282 20.25 20.16 10.084 3.47098 4.94666 31.48 1486.19 1024.284 20.55 20.46 10.067 3.46673 4.94300 31.45 1486.10 1024.266 20.85 20.76 10.059 3.46432 4.94065 31.44 1486.05 1024.255 21.15 21.06 10.061 3.46543 4.94204 31.45 1486.07 1024.264 21.45 21.36 10.066 3.46785 4.94476 31.46 1486.12 1024.280 21.75 21.65 10.080 3.47020 4.94612 31.48 1486.19 1024.288 22.05 21.95 10.114 3.47795 4.95237 31.52 1486.38 1024.321 22.35 22.25 10.170 3.48209 4.95035 31.52 1486.58 1024.308 22.65 22.55 10.229 3.49842 4.96528 31.63 1486.93 1024.387 22.95 22.85 10.268 3.50583 4.97033 31.67 1487.12 1024.413 23.25 23.15 10.322 3.50908 4.96722 31.66 1487.31 1024.394 23.55 23.44 10.345 3.51180 4.96788 31.66 1487.40 1024.397 23.85 23.74 10.356 3.51530 4.97132 31.69 1487.48 1024.416 24.15 24.04 10.363 3.51597 4.97120 31.69 1487.51 1024.417 24.45 24.34 10.370 3.51656 4.97117 31.69 1487.54 1024.417 24.75 24.64 10.366 3.51645 4.97156 31.69 1487.53 1024.421 25.05 24.94 10.360 3.51469 4.96983 31.68 1487.50 1024.413 25.35 25.24 10.348 3.51518 4.97231 31.69 1487.48 1024.429 25.65 25.53 10.332 3.51188 4.96979 31.67 1487.40 1024.417 25.95 25.83 10.339 3.51153 4.96835 31.66 1487.42 1024.410 26.25 26.13 10.324 3.51432 4.97436 31.70 1487.42 1024.446 26.55 26.43 10.323 3.51559 4.97639 31.72 1487.44 1024.458 26.85 26.73 10.322 3.51545 4.97635 31.72 1487.44 1024.459 27.15 27.03 10.318 3.51498 4.97625 31.72 1487.43 1024.460 27.45 27.33 10.318 3.51501 4.97616 31.72 1487.44 1024.461 27.75 27.62 10.318 3.51424 4.97514 31.71 1487.43 1024.457 28.05 27.92 10.317 3.51469 4.97591 31.71 1487.44 1024.462 28.35 28.22 10.315 3.51576 4.97772 31.73 1487.45 1024.474 28.65 28.52 10.304 3.51612 4.97976 31.74 1487.43 1024.487 28.95 28.82 10.294 3.51384 4.97795 31.72 1487.38 1024.479 29.25 29.12 10.286 3.51266 4.97736 31.72 1487.35 1024.477 29.55 29.41 10.279 3.51227 4.97778 31.72 1487.34 1024.481 29.85 29.71 10.274 3.51215 4.97838 31.73 1487.33 1024.486 30.15 30.01 10.270 3.51240 4.97931 31.73 1487.32 1024.493 30.45 30.31 10.266 3.51273 4.98036 31.74 1487.32 1024.500 30.75 30.61 10.261 3.51314 4.98160 31.75 1487.32 1024.509 31.05 30.91 10.255 3.51429 4.98417 31.76 1487.32 1024.525 31.35 31.21 10.243 3.51424 4.98572 31.77 1487.30 1024.535 31.65 31.50 10.232 3.51233 4.98454 31.76 1487.25 1024.531 31.95 31.80 10.223 3.51058 4.98329 31.75 1487.21 1024.526 32.25 32.10 10.211 3.51110 4.98577 31.77 1487.19 1024.542 32.55 32.40 10.204 3.50979 4.98499 31.76 1487.16 1024.539 32.85 32.70 10.204 3.51051 4.98602 31.77 1487.18 1024.546 33.15 33.00 10.200 3.50999 4.98584 31.77 1487.16 1024.547 33.45 33.29 10.195 3.50959 4.98591 31.77 1487.15 1024.549 33.75 33.59 10.192 3.50848 4.98476 31.76 1487.14 1024.544 34.05 33.89 10.182 3.50798 4.98546 31.76 1487.11 1024.550 34.35 34.19 10.174 3.50753 4.98598 31.76 1487.09 1024.554 34.65 34.49 10.169 3.50817 4.98759 31.78 1487.09 1024.565 34.95 34.79 10.165 3.50836 4.98841 31.78 1487.08 1024.571 35.25 35.09 10.162 3.50800 4.98840 31.78 1487.08 1024.572 35.55 35.38 10.158 3.50741 4.98806 31.78 1487.07 1024.572 35.85 35.68 10.156 3.50786 4.98905 31.78 1487.07 1024.579 36.15 35.98 10.144 3.50650 4.98875 31.78 1487.03 1024.579 36.50 36.33 10.139 3.50643 4.98933 31.78 1487.02 1024.584