*2026/01/16 09:57:55.83 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 21:45:26.000 END TIME : UTC 2024/10/15 21:45:46.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 102 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.43 2 Depth metres 0.15 30.31 3 Temperature 'deg C (ITS90)' 12.214 13.24 4 Conductivity S/m 3.19667 3.64521 5 Conductance:Specific S/m 4.17978 4.8976 6 Salinity PSS-78 26.4 31.37 7 Speed:Sound m/s 1490.85 1494.74 8 Density kg/m^3 1019.701 1023.868 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 269 LATITUDE : 49 21.80910 N ! (deg min) LONGITUDE : 126 4.84440 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_214526 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 102 102 MERGEHDR 1.3 2026/01/16 09:54:08 102 102 HDREDIT2 3.2 2026/01/16 09:55:13 ? ? REMOVECH 8.2 2026/01/16 09:56:23 102 102 CALIB 12.1 2026/01/16 09:56:56 102 102 CLEAN 5.3 2026/01/16 09:57:55 102 102 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:13 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 09:57:46 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 13.240 3.19667 4.17978 26.40 1490.85 1019.701 0.45 0.45 13.231 3.20051 4.18571 26.44 1490.87 1019.736 0.75 0.75 13.210 3.23877 4.23810 26.81 1491.24 1020.022 1.05 1.05 13.199 3.26697 4.27623 27.08 1491.52 1020.231 1.35 1.35 13.171 3.33094 4.36313 27.68 1492.14 1020.706 1.65 1.65 13.056 3.42773 4.50348 28.66 1492.91 1021.485 1.95 1.95 12.936 3.50637 4.62144 29.48 1493.48 1022.146 2.25 2.25 12.886 3.51637 4.64072 29.62 1493.47 1022.259 2.55 2.55 12.855 3.52285 4.65302 29.70 1493.48 1022.331 2.85 2.85 12.853 3.52991 4.66263 29.77 1493.55 1022.386 3.15 3.14 12.847 3.53318 4.66773 29.80 1493.58 1022.416 3.45 3.44 12.850 3.53718 4.67258 29.84 1493.64 1022.443 3.75 3.74 12.858 3.54856 4.68672 29.94 1493.78 1022.521 4.05 4.04 12.875 3.55693 4.69560 30.00 1493.93 1022.569 4.35 4.34 12.870 3.56119 4.70183 30.05 1493.97 1022.605 4.65 4.64 12.874 3.55766 4.69671 30.01 1493.94 1022.578 4.95 4.94 12.839 3.54776 4.68800 29.95 1493.75 1022.535 5.25 5.24 12.789 3.55512 4.70388 30.05 1493.71 1022.630 5.55 5.54 12.759 3.55806 4.71154 30.11 1493.68 1022.677 5.85 5.84 12.737 3.56000 4.71680 30.14 1493.65 1022.709 6.15 6.13 12.744 3.56178 4.71832 30.15 1493.69 1022.718 6.45 6.43 12.747 3.56440 4.72142 30.18 1493.73 1022.736 6.75 6.73 12.750 3.57003 4.72855 30.23 1493.81 1022.776 7.05 7.03 12.743 3.57807 4.74010 30.31 1493.88 1022.842 7.35 7.33 12.738 3.58038 4.74369 30.33 1493.90 1022.863 7.65 7.63 12.742 3.58878 4.75441 30.41 1494.01 1022.923 7.95 7.93 12.756 3.59334 4.75860 30.44 1494.10 1022.946 8.25 8.23 12.780 3.59999 4.76442 30.48 1494.24 1022.976 8.55 8.53 12.792 3.60679 4.77189 30.54 1494.35 1023.017 8.85 8.83 12.797 3.60972 4.77515 30.56 1494.40 1023.035 9.15 9.12 12.797 3.61448 4.78142 30.60 1494.46 1023.071 9.45 9.42 12.798 3.62015 4.78882 30.66 1494.53 1023.113 9.75 9.72 12.801 3.62487 4.79467 30.70 1494.59 1023.146 10.05 10.02 12.805 3.62773 4.79789 30.72 1494.64 1023.165 10.35 10.32 12.810 3.63200 4.80301 30.76 1494.70 1023.193 10.65 10.62 12.815 3.63404 4.80507 30.77 1494.74 1023.205 10.95 10.92 12.795 3.63538 4.80932 30.80 1494.71 1023.233 11.25 11.22 12.770 3.63588 4.81323 30.83 1494.66 1023.258 11.55 11.52 12.728 3.63763 4.82087 30.88 1494.58 1023.307 11.85 11.81 12.705 3.63846 4.82488 30.90 1494.54 1023.333 12.15 12.11 12.663 3.63679 4.82810 30.92 1494.43 1023.357 12.45 12.41 12.602 3.63502 4.83359 30.96 1494.26 1023.396 12.75 12.71 12.550 3.63455 4.83961 30.99 1494.14 1023.436 13.05 13.01 12.517 3.63409 4.84320 31.02 1494.06 1023.461 13.35 13.31 12.504 3.63412 4.84502 31.03 1494.03 1023.474 13.65 13.61 12.490 3.63410 4.84673 31.04 1494.00 1023.486 13.95 13.91 12.475 3.63425 4.84890 31.05 1493.97 1023.501 14.25 14.20 12.463 3.63461 4.85093 31.07 1493.95 1023.515 14.55 14.50 12.453 3.63487 4.85258 31.08 1493.93 1023.526 14.85 14.80 12.443 3.63519 4.85433 31.09 1493.92 1023.538 15.15 15.10 12.434 3.63521 4.85548 31.10 1493.90 1023.547 15.45 15.40 12.421 3.63557 4.85762 31.11 1493.88 1023.561 15.75 15.70 12.407 3.63515 4.85889 31.12 1493.85 1023.571 16.05 16.00 12.400 3.63496 4.85953 31.12 1493.83 1023.577 16.35 16.30 12.393 3.63562 4.86131 31.13 1493.83 1023.589 16.65 16.60 12.392 3.63561 4.86148 31.13 1493.83 1023.591 16.95 16.89 12.386 3.63610 4.86289 31.14 1493.82 1023.601 17.25 17.19 12.381 3.63571 4.86307 31.14 1493.81 1023.604 17.55 17.49 12.370 3.63681 4.86592 31.16 1493.80 1023.622 17.85 17.79 12.358 3.63726 4.86813 31.18 1493.78 1023.637 18.15 18.09 12.349 3.63735 4.86934 31.19 1493.77 1023.645 18.45 18.39 12.342 3.63780 4.87090 31.20 1493.76 1023.656 18.75 18.69 12.334 3.63791 4.87209 31.20 1493.75 1023.665 19.05 18.99 12.328 3.63739 4.87219 31.20 1493.73 1023.667 19.35 19.28 12.317 3.63756 4.87383 31.21 1493.71 1023.679 19.65 19.58 12.311 3.63656 4.87330 31.21 1493.69 1023.678 19.95 19.88 12.295 3.63639 4.87516 31.22 1493.65 1023.691 20.25 20.18 12.287 3.63491 4.87426 31.21 1493.62 1023.688 20.55 20.48 12.282 3.63376 4.87337 31.21 1493.60 1023.685 20.85 20.78 12.267 3.63453 4.87633 31.23 1493.58 1023.705 21.15 21.08 12.256 3.63807 4.88251 31.27 1493.60 1023.741 21.45 21.37 12.252 3.63663 4.88115 31.26 1493.58 1023.735 21.75 21.67 12.244 3.63636 4.88178 31.26 1493.56 1023.741 22.05 21.97 12.242 3.63711 4.88310 31.27 1493.57 1023.750 22.35 22.27 12.240 3.63706 4.88321 31.27 1493.57 1023.752 22.65 22.57 12.241 3.63719 4.88337 31.27 1493.57 1023.754 22.95 22.87 12.242 3.63724 4.88331 31.27 1493.58 1023.755 23.25 23.17 12.239 3.63794 4.88452 31.28 1493.59 1023.763 23.55 23.47 12.238 3.63713 4.88357 31.27 1493.58 1023.759 23.85 23.76 12.239 3.63791 4.88453 31.28 1493.60 1023.765 24.15 24.06 12.240 3.63729 4.88360 31.27 1493.60 1023.762 24.45 24.36 12.240 3.63831 4.88497 31.28 1493.61 1023.770 24.75 24.66 12.245 3.63913 4.88545 31.29 1493.64 1023.774 25.05 24.96 12.250 3.64029 4.88629 31.29 1493.67 1023.779 25.35 25.26 12.253 3.64261 4.88907 31.31 1493.71 1023.795 25.65 25.56 12.253 3.64267 4.88915 31.31 1493.71 1023.797 25.95 25.86 12.252 3.64318 4.88990 31.32 1493.72 1023.802 26.25 26.15 12.251 3.64301 4.88983 31.32 1493.72 1023.804 26.55 26.45 12.250 3.64364 4.89081 31.32 1493.73 1023.810 26.85 26.75 12.244 3.64409 4.89214 31.33 1493.73 1023.819 27.15 27.05 12.242 3.64375 4.89202 31.33 1493.72 1023.820 27.45 27.35 12.240 3.64403 4.89257 31.34 1493.73 1023.825 27.75 27.65 12.239 3.64465 4.89363 31.34 1493.74 1023.832 28.05 27.95 12.237 3.64364 4.89252 31.34 1493.72 1023.827 28.35 28.25 12.233 3.64419 4.89372 31.34 1493.73 1023.836 28.65 28.54 12.231 3.64429 4.89419 31.35 1493.73 1023.840 28.95 28.84 12.230 3.64393 4.89382 31.34 1493.73 1023.839 29.25 29.14 12.228 3.64421 4.89449 31.35 1493.73 1023.844 29.55 29.44 12.223 3.64466 4.89576 31.36 1493.73 1023.853 29.85 29.74 12.219 3.64466 4.89629 31.36 1493.72 1023.858 30.15 30.04 12.215 3.64461 4.89667 31.36 1493.72 1023.862 30.43 30.31 12.214 3.64521 4.89760 31.37 1493.73 1023.868