*2026/01/16 09:57:56.54 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 16:26:52.000 END TIME : UTC 2024/10/17 16:27:07.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 78 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.27 2 Depth metres 0.15 23.16 3 Temperature 'deg C (ITS90)' 10.398 11.412 4 Conductivity S/m 3.22951 3.53812 5 Conductance:Specific S/m 4.46988 4.99445 6 Salinity PSS-78 28.25 31.86 7 Speed:Sound m/s 1485.7 1489.72 8 Density kg/m^3 1021.509 1024.537 $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 : 284 LATITUDE : 48 52.46540 N ! (deg min) LONGITUDE : 125 17.38400 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_162652 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 78 78 MERGEHDR 1.3 2026/01/16 09:54:10 78 78 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 78 78 CALIB 12.1 2026/01/16 09:56:57 78 78 CLEAN 5.3 2026/01/16 09:57:56 78 78 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:57 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 11.125 3.22951 4.46988 28.25 1485.70 1021.509 0.45 0.45 11.211 3.26441 4.50754 28.53 1486.33 1021.707 0.75 0.75 11.341 3.32881 4.58002 29.05 1487.42 1022.090 1.05 1.05 11.412 3.43365 4.71501 30.00 1488.83 1022.823 1.35 1.35 11.364 3.46455 4.76368 30.34 1489.07 1023.095 1.65 1.65 11.315 3.48927 4.80411 30.62 1489.24 1023.323 1.95 1.94 11.275 3.49091 4.81175 30.67 1489.16 1023.370 2.25 2.24 11.210 3.49284 4.82304 30.75 1489.03 1023.439 2.55 2.54 11.214 3.49566 4.82638 30.77 1489.07 1023.459 2.85 2.84 11.215 3.49766 4.82897 30.79 1489.11 1023.474 3.15 3.14 11.227 3.49833 4.82830 30.78 1489.15 1023.471 3.45 3.44 11.253 3.50141 4.82911 30.79 1489.25 1023.474 3.75 3.74 11.275 3.51016 4.83824 30.86 1489.42 1023.523 4.05 4.04 11.296 3.51465 4.84161 30.89 1489.53 1023.541 4.35 4.33 11.309 3.51883 4.84561 30.92 1489.61 1023.563 4.65 4.63 11.324 3.51947 4.84449 30.91 1489.66 1023.557 4.95 4.93 11.334 3.51926 4.84291 30.90 1489.69 1023.549 5.25 5.23 11.322 3.52236 4.84876 30.94 1489.70 1023.583 5.55 5.53 11.304 3.52517 4.85501 30.98 1489.69 1023.621 5.85 5.83 11.292 3.52926 4.86229 31.03 1489.72 1023.663 6.15 6.13 11.270 3.53070 4.86729 31.06 1489.68 1023.694 6.45 6.43 11.242 3.53417 4.87577 31.12 1489.66 1023.744 6.75 6.72 11.196 3.53467 4.88268 31.17 1489.55 1023.788 7.05 7.02 11.150 3.53134 4.88425 31.17 1489.40 1023.802 7.35 7.32 11.109 3.52715 4.88401 31.16 1489.26 1023.805 7.65 7.62 11.054 3.52817 4.89294 31.22 1489.13 1023.861 7.95 7.92 10.985 3.52983 4.90461 31.30 1488.99 1023.932 8.25 8.22 10.957 3.53392 4.91404 31.36 1488.97 1023.988 8.55 8.52 10.936 3.53704 4.92127 31.41 1488.96 1024.031 8.85 8.82 10.919 3.53812 4.92508 31.43 1488.93 1024.054 9.15 9.11 10.915 3.53801 4.92560 31.44 1488.93 1024.059 9.45 9.41 10.910 3.53799 4.92615 31.44 1488.92 1024.064 9.75 9.71 10.905 3.53799 4.92689 31.44 1488.91 1024.069 10.05 10.01 10.896 3.53741 4.92725 31.45 1488.89 1024.073 10.35 10.31 10.891 3.53798 4.92883 31.46 1488.88 1024.084 10.65 10.61 10.885 3.53755 4.92902 31.46 1488.87 1024.087 10.95 10.91 10.873 3.53793 4.93125 31.47 1488.85 1024.101 11.25 11.20 10.856 3.53726 4.93259 31.48 1488.80 1024.111 11.55 11.50 10.842 3.53685 4.93391 31.49 1488.77 1024.121 11.85 11.80 10.831 3.53528 4.93331 31.48 1488.73 1024.120 12.15 12.10 10.810 3.53522 4.93602 31.50 1488.68 1024.138 12.45 12.40 10.790 3.53504 4.93865 31.51 1488.63 1024.155 12.75 12.70 10.760 3.53445 4.94189 31.53 1488.55 1024.177 13.05 13.00 10.733 3.53561 4.94724 31.57 1488.50 1024.210 13.35 13.29 10.711 3.53675 4.95191 31.60 1488.47 1024.238 13.65 13.59 10.696 3.53793 4.95566 31.62 1488.45 1024.261 13.95 13.89 10.677 3.53756 4.95781 31.64 1488.40 1024.276 14.25 14.19 10.657 3.53751 4.96049 31.65 1488.35 1024.294 14.55 14.49 10.641 3.53706 4.96200 31.66 1488.31 1024.304 14.85 14.79 10.631 3.53752 4.96414 31.67 1488.30 1024.318 15.15 15.09 10.621 3.53748 4.96543 31.68 1488.28 1024.328 15.45 15.38 10.606 3.53692 4.96679 31.69 1488.24 1024.337 15.75 15.68 10.595 3.53697 4.96831 31.70 1488.22 1024.348 16.05 15.98 10.591 3.53678 4.96861 31.70 1488.21 1024.351 16.35 16.28 10.586 3.53639 4.96885 31.70 1488.19 1024.354 16.65 16.58 10.577 3.53685 4.97071 31.71 1488.18 1024.366 16.95 16.88 10.570 3.53623 4.97081 31.71 1488.16 1024.369 17.25 17.18 10.560 3.53599 4.97187 31.72 1488.14 1024.377 17.55 17.47 10.551 3.53570 4.97277 31.72 1488.12 1024.384 17.85 17.77 10.528 3.53517 4.97522 31.74 1488.06 1024.400 18.15 18.07 10.504 3.53426 4.97727 31.75 1487.99 1024.414 18.45 18.37 10.496 3.53448 4.97869 31.76 1487.98 1024.424 18.75 18.67 10.484 3.53442 4.98030 31.77 1487.95 1024.435 19.05 18.97 10.473 3.53505 4.98271 31.78 1487.94 1024.450 19.35 19.27 10.467 3.53501 4.98355 31.79 1487.92 1024.457 19.65 19.56 10.464 3.53537 4.98438 31.80 1487.93 1024.463 19.95 19.86 10.456 3.53528 4.98548 31.80 1487.91 1024.471 20.25 20.16 10.445 3.53542 4.98723 31.81 1487.89 1024.483 20.55 20.46 10.434 3.53569 4.98915 31.83 1487.87 1024.495 20.85 20.76 10.433 3.53570 4.98930 31.83 1487.87 1024.497 21.15 21.06 10.429 3.53537 4.98941 31.83 1487.86 1024.500 21.45 21.36 10.416 3.53525 4.99103 31.84 1487.83 1024.511 21.75 21.65 10.406 3.53565 4.99299 31.85 1487.82 1024.524 22.05 21.95 10.401 3.53567 4.99375 31.85 1487.81 1024.529 22.35 22.25 10.401 3.53599 4.99422 31.86 1487.82 1024.533 22.65 22.55 10.401 3.53557 4.99361 31.85 1487.82 1024.531 22.95 22.85 10.398 3.53583 4.99445 31.86 1487.82 1024.537 23.27 23.16 10.401 3.53512 4.99302 31.85 1487.82 1024.530