*2026/01/16 10:37:55.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/30 18:40:10.000 END TIME : UTC 2025/05/30 18:40:35.400 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 38.26 2 Depth metres 0.15 38.13 3 Temperature 'deg C (ITS90)' 9.869 14.432 4 Conductivity S/m 1.15788 3.51597 5 Conductance:Specific S/m 1.4747 4.98045 6 Salinity PSS-78 8.49 31.69 7 Speed:Sound m/s 1473.39 1490.68 8 Density kg/m^3 1005.753 1024.559 $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 : 171 LATITUDE : 49 39.57400 N ! (deg min) LONGITUDE : 126 9.51460 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250530_184010 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 128 128 MERGEHDR 1.3 2026/01/16 10:35:45 128 128 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:43 128 128 CALIB 12.1 2026/01/16 10:37:18 128 128 CLEAN 5.3 2026/01/16 10:37:55 128 128 $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 10:36:43 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 14.258 1.15788 1.47470 8.49 1473.39 1005.753 0.45 0.46 14.342 1.47880 1.87943 11.04 1476.66 1007.698 0.75 0.76 14.432 1.76233 2.23467 13.33 1479.64 1009.439 1.05 1.06 14.372 2.24069 2.84556 17.35 1484.12 1012.533 1.35 1.36 14.344 2.44318 3.10488 19.09 1486.05 1013.872 1.65 1.66 14.349 2.49188 3.16635 19.50 1486.55 1014.191 1.95 1.97 14.295 2.52897 3.21790 19.85 1486.78 1014.468 2.25 2.27 14.196 2.54947 3.25221 20.08 1486.71 1014.663 2.55 2.57 14.086 2.60806 3.33632 20.64 1487.01 1015.119 2.85 2.87 13.986 2.62392 3.36522 20.83 1486.90 1015.286 3.15 3.17 13.855 2.76494 3.55806 22.14 1487.99 1016.318 3.45 3.47 13.681 2.86358 3.70149 23.12 1488.54 1017.101 3.75 3.77 13.512 2.91828 3.78880 23.71 1488.67 1017.589 4.05 4.07 13.350 2.96377 3.86415 24.22 1488.72 1018.013 4.35 4.37 13.172 3.03853 3.98002 25.01 1489.05 1018.656 4.65 4.67 12.973 3.13307 4.12541 26.00 1489.54 1019.463 4.95 4.97 12.810 3.15338 4.17005 26.30 1489.34 1019.725 5.25 5.27 12.630 3.30004 4.38484 27.79 1490.49 1020.909 5.55 5.57 12.424 3.36432 4.49487 28.55 1490.68 1021.532 5.85 5.87 12.218 3.40248 4.57097 29.06 1490.59 1021.972 6.15 6.17 11.971 3.43661 4.64773 29.58 1490.36 1022.419 6.45 6.47 11.793 3.45762 4.69873 29.93 1490.16 1022.718 6.75 6.77 11.617 3.47124 4.74000 30.20 1489.87 1022.964 7.05 7.07 11.496 3.47797 4.76488 30.36 1489.65 1023.113 7.35 7.37 11.327 3.48567 4.79756 30.58 1489.32 1023.310 7.65 7.67 11.294 3.49171 4.81028 30.66 1489.31 1023.384 7.95 7.96 11.255 3.49480 4.81979 30.73 1489.25 1023.441 8.25 8.26 11.231 3.49856 4.82807 30.78 1489.24 1023.490 8.55 8.56 11.192 3.50019 4.83565 30.83 1489.17 1023.537 8.85 8.86 11.181 3.50185 4.83930 30.86 1489.16 1023.559 9.15 9.16 11.183 3.50081 4.83772 30.84 1489.16 1023.552 9.45 9.46 11.166 3.50108 4.84030 30.86 1489.13 1023.569 9.75 9.76 11.153 3.50293 4.84457 30.89 1489.12 1023.595 10.05 10.06 11.145 3.50255 4.84510 30.89 1489.10 1023.599 10.35 10.35 11.138 3.50478 4.84918 30.92 1489.11 1023.624 10.65 10.65 11.134 3.50579 4.85112 30.93 1489.12 1023.636 10.95 10.95 11.129 3.50806 4.85484 30.96 1489.14 1023.658 11.25 11.25 11.128 3.51051 4.85841 30.98 1489.17 1023.679 11.55 11.55 11.131 3.51139 4.85926 30.99 1489.19 1023.685 11.85 11.85 11.133 3.51151 4.85911 30.99 1489.20 1023.685 12.15 12.15 11.135 3.51217 4.85977 30.99 1489.22 1023.690 12.45 12.45 11.136 3.51232 4.85989 30.99 1489.23 1023.692 12.75 12.74 11.129 3.51218 4.86063 31.00 1489.22 1023.698 13.05 13.04 11.113 3.51169 4.86204 31.01 1489.18 1023.708 13.35 13.34 11.069 3.51205 4.86857 31.05 1489.07 1023.749 13.65 13.64 11.037 3.51597 4.87828 31.11 1489.04 1023.807 13.95 13.94 10.999 3.51561 4.88295 31.14 1488.95 1023.837 14.25 14.24 10.945 3.51581 4.89058 31.19 1488.82 1023.885 14.55 14.54 10.919 3.51378 4.89121 31.19 1488.74 1023.892 14.85 14.84 10.907 3.51416 4.89348 31.21 1488.71 1023.907 15.15 15.13 10.900 3.51297 4.89273 31.20 1488.69 1023.904 15.45 15.43 10.892 3.51383 4.89506 31.22 1488.68 1023.919 15.75 15.73 10.883 3.51376 4.89615 31.22 1488.66 1023.927 16.05 16.03 10.868 3.51304 4.89721 31.23 1488.62 1023.935 16.35 16.33 10.851 3.51199 4.89804 31.23 1488.57 1023.943 16.65 16.63 10.834 3.51090 4.89889 31.24 1488.52 1023.950 16.95 16.93 10.814 3.51026 4.90066 31.25 1488.47 1023.963 17.25 17.22 10.801 3.50950 4.90141 31.25 1488.43 1023.969 17.55 17.52 10.791 3.50887 4.90194 31.25 1488.40 1023.974 17.85 17.82 10.781 3.50897 4.90342 31.26 1488.38 1023.984 18.15 18.12 10.777 3.50800 4.90252 31.25 1488.37 1023.981 18.45 18.42 10.779 3.50991 4.90492 31.27 1488.40 1023.995 18.75 18.72 10.780 3.51145 4.90701 31.29 1488.42 1024.008 19.05 19.02 10.778 3.51243 4.90862 31.30 1488.44 1024.018 19.35 19.31 10.777 3.51394 4.91083 31.31 1488.46 1024.032 19.65 19.61 10.777 3.51343 4.91012 31.31 1488.45 1024.029 19.95 19.91 10.777 3.51290 4.90948 31.30 1488.45 1024.027 20.25 20.21 10.775 3.51156 4.90783 31.29 1488.44 1024.019 20.55 20.51 10.773 3.51182 4.90851 31.29 1488.44 1024.024 20.85 20.81 10.770 3.51185 4.90896 31.30 1488.44 1024.028 21.15 21.11 10.768 3.51228 4.90988 31.30 1488.44 1024.035 21.45 21.41 10.766 3.51268 4.91062 31.31 1488.45 1024.040 21.75 21.70 10.766 3.51313 4.91133 31.31 1488.45 1024.046 22.05 22.00 10.761 3.51237 4.91095 31.31 1488.44 1024.045 22.35 22.30 10.747 3.51141 4.91145 31.31 1488.40 1024.050 22.65 22.60 10.731 3.51141 4.91367 31.33 1488.36 1024.065 22.95 22.90 10.714 3.50823 4.91152 31.31 1488.29 1024.056 23.25 23.20 10.702 3.50407 4.90740 31.28 1488.21 1024.035 23.55 23.50 10.680 3.50364 4.90980 31.29 1488.15 1024.052 23.85 23.79 10.661 3.50310 4.91172 31.30 1488.10 1024.065 24.15 24.09 10.644 3.50247 4.91307 31.31 1488.06 1024.075 24.45 24.39 10.630 3.50161 4.91389 31.31 1488.02 1024.082 24.75 24.69 10.613 3.50004 4.91396 31.31 1487.96 1024.085 25.05 24.99 10.604 3.49884 4.91361 31.31 1487.93 1024.085 25.35 25.29 10.591 3.49881 4.91524 31.32 1487.90 1024.096 25.65 25.59 10.575 3.49846 4.91697 31.33 1487.86 1024.108 25.95 25.88 10.563 3.49751 4.91735 31.33 1487.82 1024.112 26.25 26.18 10.553 3.49644 4.91718 31.33 1487.79 1024.114 26.55 26.48 10.541 3.49573 4.91791 31.33 1487.75 1024.120 26.85 26.78 10.532 3.49559 4.91898 31.34 1487.73 1024.128 27.15 27.08 10.524 3.49390 4.91759 31.33 1487.70 1024.122 27.45 27.38 10.515 3.49393 4.91897 31.34 1487.68 1024.131 27.75 27.68 10.502 3.49430 4.92121 31.35 1487.66 1024.146 28.05 27.97 10.479 3.49393 4.92390 31.37 1487.60 1024.164 28.35 28.27 10.447 3.49150 4.92492 31.37 1487.49 1024.173 28.65 28.57 10.408 3.48609 4.92270 31.35 1487.33 1024.165 28.95 28.87 10.369 3.48120 4.92123 31.33 1487.18 1024.161 29.25 29.17 10.323 3.47871 4.92420 31.35 1487.03 1024.182 29.55 29.47 10.285 3.47722 4.92735 31.37 1486.93 1024.203 29.85 29.77 10.252 3.47591 4.93005 31.38 1486.83 1024.222 30.15 30.06 10.225 3.47534 4.93306 31.40 1486.76 1024.241 30.45 30.36 10.197 3.47546 4.93713 31.42 1486.69 1024.267 30.75 30.66 10.175 3.47401 4.93817 31.43 1486.62 1024.276 31.05 30.96 10.155 3.47429 4.94134 31.45 1486.58 1024.296 31.35 31.26 10.134 3.47376 4.94352 31.46 1486.53 1024.310 31.65 31.56 10.113 3.47368 4.94646 31.48 1486.48 1024.329 31.95 31.86 10.085 3.47313 4.94959 31.50 1486.40 1024.349 32.25 32.15 10.063 3.47189 4.95088 31.50 1486.34 1024.359 32.55 32.45 10.037 3.47131 4.95377 31.52 1486.27 1024.378 32.85 32.75 10.015 3.47039 4.95560 31.53 1486.20 1024.391 33.15 33.05 9.992 3.46780 4.95514 31.52 1486.12 1024.391 33.45 33.35 9.968 3.46611 4.95617 31.53 1486.04 1024.400 33.75 33.65 9.945 3.46432 4.95677 31.53 1485.96 1024.406 34.05 33.95 9.929 3.46445 4.95926 31.54 1485.93 1024.422 34.35 34.24 9.922 3.46373 4.95918 31.54 1485.91 1024.423 34.65 34.54 9.921 3.46389 4.95956 31.55 1485.91 1024.426 34.95 34.84 9.918 3.46402 4.96020 31.55 1485.91 1024.432 35.25 35.14 9.914 3.46398 4.96071 31.55 1485.90 1024.436 35.55 35.44 9.913 3.46419 4.96113 31.55 1485.91 1024.439 35.85 35.74 9.909 3.46304 4.96006 31.55 1485.89 1024.435 36.15 36.04 9.905 3.46349 4.96136 31.56 1485.89 1024.444 36.45 36.33 9.900 3.46353 4.96206 31.56 1485.88 1024.449 36.75 36.63 9.893 3.46331 4.96280 31.56 1485.86 1024.455 37.05 36.93 9.882 3.46395 4.96528 31.58 1485.85 1024.471 37.35 37.23 9.875 3.46559 4.96865 31.60 1485.86 1024.491 37.65 37.53 9.869 3.46844 4.97350 31.64 1485.88 1024.519 37.95 37.83 9.873 3.47155 4.97743 31.66 1485.93 1024.542 38.26 38.13 9.887 3.47509 4.98045 31.69 1486.02 1024.559