*2026/01/16 09:57:54.96 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/14 21:57:31.000 END TIME : UTC 2024/10/14 21:57:47.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.01 2 Depth metres 0.15 24.95 3 Temperature 'deg C (ITS90)' 14.312 15.193 4 Conductivity S/m 2.79862 3.76203 5 Conductance:Specific S/m 3.48504 4.76105 6 Salinity PSS-78 21.7 30.59 7 Speed:Sound m/s 1491.76 1500.35 8 Density kg/m^3 1015.724 1022.784 $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 : 254 LATITUDE : 49 7.59410 N ! (deg min) LONGITUDE : 125 43.96750 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241014_215731 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 84 84 MERGEHDR 1.3 2026/01/16 09:54:06 84 84 HDREDIT2 3.2 2026/01/16 09:55:12 ? ? REMOVECH 8.2 2026/01/16 09:56:23 84 84 CALIB 12.1 2026/01/16 09:56:56 84 84 CLEAN 5.3 2026/01/16 09:57:54 84 84 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:12 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 15.182 2.81813 3.50671 21.85 1492.02 1015.830 0.45 0.45 15.193 2.80408 3.48830 21.73 1491.91 1015.733 0.75 0.75 15.152 2.79862 3.48504 21.70 1491.76 1015.724 1.05 1.05 15.000 2.88733 3.60917 22.55 1492.24 1016.403 1.35 1.35 14.931 3.17604 3.97690 25.09 1494.97 1018.370 1.65 1.65 14.751 3.31035 4.16390 26.39 1495.89 1019.404 1.95 1.95 14.615 3.41819 4.31423 27.44 1496.67 1020.239 2.25 2.25 14.543 3.45755 4.37185 27.84 1496.91 1020.563 2.55 2.55 14.493 3.49217 4.42126 28.18 1497.15 1020.841 2.85 2.85 14.465 3.53476 4.47840 28.59 1497.53 1021.158 3.15 3.15 14.423 3.54797 4.49987 28.74 1497.57 1021.282 3.45 3.45 14.385 3.54893 4.50539 28.77 1497.50 1021.319 3.75 3.75 14.370 3.55929 4.52031 28.88 1497.57 1021.404 4.05 4.05 14.374 3.57794 4.54357 29.04 1497.78 1021.532 4.35 4.35 14.379 3.60065 4.57174 29.24 1498.04 1021.686 4.65 4.65 14.391 3.60676 4.57810 29.29 1498.14 1021.720 4.95 4.95 14.397 3.61506 4.58801 29.36 1498.24 1021.775 5.25 5.25 14.405 3.62291 4.59703 29.42 1498.35 1021.825 5.55 5.55 14.419 3.63515 4.61096 29.52 1498.51 1021.900 5.85 5.85 14.421 3.64138 4.61858 29.58 1498.59 1021.943 6.15 6.15 14.402 3.64304 4.62288 29.61 1498.57 1021.970 6.45 6.45 14.378 3.64602 4.62954 29.65 1498.55 1022.012 6.75 6.74 14.349 3.65130 4.63966 29.72 1498.54 1022.073 7.05 7.04 14.334 3.65903 4.65128 29.80 1498.59 1022.140 7.35 7.34 14.323 3.66568 4.66093 29.87 1498.64 1022.196 7.65 7.64 14.319 3.66977 4.66670 29.91 1498.68 1022.229 7.95 7.94 14.314 3.67421 4.67289 29.96 1498.72 1022.265 8.25 8.24 14.312 3.67526 4.67449 29.97 1498.73 1022.276 8.55 8.54 14.314 3.67577 4.67485 29.97 1498.75 1022.278 8.85 8.84 14.318 3.67918 4.67877 30.00 1498.79 1022.301 9.15 9.14 14.321 3.68155 4.68140 30.02 1498.83 1022.316 9.45 9.44 14.325 3.68378 4.68380 30.03 1498.87 1022.330 9.75 9.74 14.329 3.68492 4.68479 30.04 1498.89 1022.336 10.05 10.03 14.330 3.68568 4.68563 30.05 1498.91 1022.342 10.35 10.33 14.334 3.68828 4.68838 30.07 1498.95 1022.357 10.65 10.63 14.338 3.69106 4.69149 30.09 1499.00 1022.375 10.95 10.93 14.338 3.69514 4.69659 30.13 1499.05 1022.404 11.25 11.23 14.342 3.70092 4.70358 30.18 1499.12 1022.443 11.55 11.53 14.346 3.70374 4.70658 30.20 1499.16 1022.461 11.85 11.83 14.355 3.70596 4.70839 30.21 1499.21 1022.470 12.15 12.13 14.359 3.70708 4.70926 30.22 1499.24 1022.476 12.45 12.43 14.363 3.70783 4.70977 30.22 1499.26 1022.479 12.75 12.73 14.367 3.70893 4.71072 30.23 1499.29 1022.485 13.05 13.03 14.369 3.71022 4.71217 30.24 1499.31 1022.494 13.35 13.33 14.373 3.71054 4.71206 30.24 1499.33 1022.494 13.65 13.62 14.375 3.71427 4.71650 30.27 1499.38 1022.520 13.95 13.92 14.380 3.71645 4.71869 30.28 1499.42 1022.532 14.25 14.22 14.385 3.71705 4.71881 30.29 1499.44 1022.533 14.55 14.52 14.392 3.72125 4.72338 30.32 1499.51 1022.559 14.85 14.82 14.396 3.72251 4.72447 30.33 1499.53 1022.565 15.15 15.12 14.399 3.72275 4.72442 30.33 1499.55 1022.566 15.45 15.42 14.402 3.72326 4.72475 30.33 1499.56 1022.568 15.75 15.72 14.406 3.72459 4.72596 30.34 1499.59 1022.576 16.05 16.02 14.414 3.72359 4.72368 30.32 1499.61 1022.563 16.35 16.32 14.420 3.72481 4.72454 30.33 1499.64 1022.568 16.65 16.61 14.424 3.72977 4.73036 30.37 1499.70 1022.601 16.95 16.91 14.428 3.72935 4.72934 30.36 1499.71 1022.596 17.25 17.21 14.430 3.72947 4.72922 30.36 1499.72 1022.596 17.55 17.51 14.433 3.73080 4.73054 30.37 1499.75 1022.604 17.85 17.81 14.435 3.73251 4.73251 30.39 1499.78 1022.616 18.15 18.11 14.437 3.73639 4.73715 30.42 1499.83 1022.643 18.45 18.41 14.446 3.74006 4.74079 30.45 1499.89 1022.663 18.75 18.71 14.449 3.74266 4.74369 30.47 1499.93 1022.679 19.05 19.01 14.451 3.74280 4.74354 30.47 1499.94 1022.680 19.35 19.31 14.455 3.74486 4.74576 30.48 1499.98 1022.692 19.65 19.61 14.460 3.74797 4.74905 30.51 1500.03 1022.711 19.95 19.90 14.467 3.75206 4.75339 30.54 1500.09 1022.735 20.25 20.20 14.477 3.75463 4.75541 30.55 1500.15 1022.746 20.55 20.50 14.485 3.75518 4.75519 30.55 1500.18 1022.745 20.85 20.80 14.488 3.75691 4.75698 30.56 1500.21 1022.755 21.15 21.10 14.491 3.75609 4.75561 30.55 1500.21 1022.749 21.45 21.40 14.494 3.75517 4.75405 30.54 1500.21 1022.741 21.75 21.70 14.497 3.75622 4.75512 30.55 1500.23 1022.748 22.05 22.00 14.500 3.75582 4.75415 30.54 1500.24 1022.743 22.35 22.30 14.506 3.75843 4.75683 30.56 1500.29 1022.758 22.65 22.60 14.508 3.76109 4.75989 30.58 1500.33 1022.776 22.95 22.89 14.508 3.76203 4.76105 30.59 1500.34 1022.784 23.25 23.19 14.510 3.76188 4.76066 30.59 1500.35 1022.782 23.55 23.49 14.510 3.76056 4.75898 30.58 1500.34 1022.774 23.85 23.79 14.513 3.75880 4.75644 30.56 1500.33 1022.761 24.15 24.09 14.517 3.75849 4.75556 30.55 1500.34 1022.757 24.45 24.39 14.517 3.75733 4.75405 30.54 1500.34 1022.750 24.75 24.69 14.516 3.75628 4.75284 30.53 1500.33 1022.745 25.01 24.95 14.517 3.75657 4.75314 30.54 1500.34 1022.747