*2026/01/16 09:57:56.48 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 14:52:35.000 END TIME : UTC 2024/10/17 14:52:47.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 65 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.29 2 Depth metres 0.15 19.19 3 Temperature 'deg C (ITS90)' 10.247 10.58 4 Conductivity S/m 3.50431 3.52753 5 Conductance:Specific S/m 4.93068 5.0031 6 Salinity PSS-78 31.43 31.9 7 Speed:Sound m/s 1487.25 1487.8 8 Density kg/m^3 1024.081 1024.58 $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 : 282 LATITUDE : 48 49.07550 N ! (deg min) LONGITUDE : 125 10.63140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_145235 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 65 65 MERGEHDR 1.3 2026/01/16 09:54:10 65 65 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 65 65 CALIB 12.1 2026/01/16 09:56:57 65 65 CLEAN 5.3 2026/01/16 09:57:56 65 65 $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 10.530 3.50496 4.93234 31.44 1487.42 1024.089 0.45 0.45 10.536 3.50431 4.93068 31.43 1487.43 1024.081 0.75 0.75 10.548 3.50577 4.93098 31.44 1487.48 1024.083 1.05 1.05 10.557 3.50662 4.93101 31.44 1487.52 1024.083 1.35 1.34 10.565 3.50899 4.93327 31.45 1487.57 1024.096 1.65 1.64 10.568 3.51025 4.93451 31.46 1487.60 1024.104 1.95 1.94 10.572 3.51225 4.93686 31.48 1487.64 1024.118 2.25 2.24 10.575 3.51453 4.93966 31.50 1487.68 1024.135 2.55 2.54 10.577 3.51569 4.94102 31.51 1487.70 1024.143 2.85 2.84 10.576 3.51909 4.94582 31.54 1487.75 1024.171 3.15 3.14 10.578 3.52037 4.94736 31.55 1487.77 1024.181 3.45 3.43 10.580 3.52225 4.94978 31.57 1487.80 1024.195 3.75 3.73 10.562 3.52344 4.95397 31.60 1487.78 1024.221 4.05 4.03 10.550 3.52461 4.95730 31.62 1487.77 1024.241 4.35 4.33 10.542 3.52515 4.95912 31.63 1487.76 1024.253 4.65 4.63 10.530 3.52515 4.96081 31.64 1487.73 1024.265 4.95 4.93 10.509 3.52570 4.96450 31.67 1487.69 1024.288 5.25 5.23 10.498 3.52643 4.96711 31.68 1487.67 1024.305 5.55 5.52 10.489 3.52558 4.96714 31.68 1487.65 1024.307 5.85 5.82 10.484 3.52614 4.96863 31.69 1487.65 1024.316 6.15 6.12 10.480 3.52638 4.96954 31.70 1487.64 1024.323 6.45 6.42 10.475 3.52609 4.96977 31.70 1487.63 1024.326 6.75 6.72 10.472 3.52644 4.97073 31.71 1487.63 1024.333 7.05 7.02 10.468 3.52573 4.97033 31.70 1487.62 1024.332 7.35 7.32 10.468 3.52671 4.97168 31.71 1487.64 1024.341 7.65 7.61 10.468 3.52582 4.97040 31.70 1487.63 1024.335 7.95 7.91 10.466 3.52551 4.97027 31.70 1487.63 1024.336 8.25 8.21 10.461 3.52547 4.97090 31.70 1487.62 1024.341 8.55 8.51 10.457 3.52527 4.97113 31.71 1487.61 1024.344 8.85 8.81 10.455 3.52568 4.97200 31.71 1487.62 1024.350 9.15 9.11 10.453 3.52513 4.97153 31.71 1487.61 1024.349 9.45 9.41 10.450 3.52507 4.97195 31.71 1487.60 1024.353 9.75 9.70 10.445 3.52502 4.97253 31.71 1487.60 1024.357 10.05 10.00 10.442 3.52493 4.97276 31.71 1487.59 1024.360 10.35 10.30 10.439 3.52452 4.97264 31.71 1487.58 1024.361 10.65 10.60 10.436 3.52415 4.97256 31.71 1487.58 1024.362 10.95 10.90 10.434 3.52448 4.97331 31.72 1487.58 1024.367 11.25 11.20 10.430 3.52370 4.97276 31.71 1487.57 1024.366 11.55 11.50 10.421 3.52344 4.97370 31.72 1487.54 1024.373 11.85 11.79 10.414 3.52224 4.97301 31.71 1487.52 1024.371 12.15 12.09 10.408 3.52260 4.97423 31.72 1487.51 1024.379 12.45 12.39 10.404 3.52294 4.97527 31.73 1487.51 1024.387 12.75 12.69 10.396 3.52347 4.97721 31.74 1487.50 1024.399 13.05 12.99 10.387 3.52325 4.97814 31.74 1487.48 1024.406 13.35 13.29 10.377 3.52441 4.98120 31.76 1487.47 1024.425 13.65 13.59 10.371 3.52370 4.98112 31.76 1487.45 1024.427 13.95 13.88 10.346 3.52437 4.98557 31.79 1487.40 1024.454 14.25 14.18 10.322 3.52477 4.98950 31.82 1487.35 1024.479 14.55 14.48 10.307 3.52560 4.99279 31.84 1487.33 1024.499 14.85 14.78 10.295 3.52644 4.99569 31.86 1487.31 1024.517 15.15 15.08 10.286 3.52561 4.99576 31.86 1487.29 1024.520 15.45 15.38 10.276 3.52660 4.99856 31.87 1487.28 1024.537 15.75 15.67 10.269 3.52684 4.99996 31.88 1487.27 1024.547 16.05 15.97 10.265 3.52665 5.00015 31.88 1487.26 1024.549 16.35 16.27 10.263 3.52719 5.00127 31.89 1487.27 1024.557 16.65 16.57 10.262 3.52657 5.00053 31.89 1487.26 1024.554 16.95 16.87 10.260 3.52647 5.00068 31.89 1487.26 1024.556 17.25 17.17 10.256 3.52639 5.00110 31.89 1487.25 1024.560 17.55 17.47 10.257 3.52753 5.00262 31.90 1487.27 1024.570 17.85 17.76 10.257 3.52701 5.00184 31.89 1487.27 1024.567 18.15 18.06 10.253 3.52693 5.00233 31.90 1487.27 1024.571 18.45 18.36 10.251 3.52709 5.00284 31.90 1487.27 1024.575 18.75 18.66 10.249 3.52707 5.00310 31.90 1487.27 1024.578 19.05 18.96 10.247 3.52648 5.00248 31.90 1487.26 1024.576 19.29 19.19 10.247 3.52679 5.00301 31.90 1487.27 1024.580