*2026/01/16 09:57:58.03 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/11 20:06:37.000 END TIME : UTC 2024/12/11 20:06:56.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.09 2 Depth metres 0.15 29 3 Temperature 'deg C (ITS90)' 7.246 10.636 4 Conductivity S/m 1.36997 3.44493 5 Conductance:Specific S/m 2.12426 4.83377 6 Salinity PSS-78 12.33 30.75 7 Speed:Sound m/s 1451.44 1487.42 8 Density kg/m^3 1009.597 1023.661 $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 : 341 LATITUDE : 49 51.81990 N ! (deg min) LONGITUDE : 126 42.58960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241211_200637 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:11 97 97 MERGEHDR 1.3 2026/01/16 09:54:16 97 97 HDREDIT2 3.2 2026/01/16 09:55:17 ? ? REMOVECH 8.2 2026/01/16 09:56:27 97 97 CALIB 12.1 2026/01/16 09:57:01 97 97 CLEAN 5.3 2026/01/16 09:57:58 97 97 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:17 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 09:56:27 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:57:01 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 7.246 1.36997 2.12426 12.33 1451.44 1009.597 0.45 0.45 7.288 1.38535 2.14530 12.47 1451.79 1009.700 0.75 0.76 7.585 1.46412 2.24660 13.13 1453.82 1010.190 1.05 1.06 8.893 2.35032 3.46728 21.18 1468.89 1016.341 1.35 1.36 9.195 2.80418 4.10024 25.50 1475.31 1019.667 1.65 1.66 9.334 2.99057 4.35509 27.27 1478.00 1021.028 1.95 1.96 9.451 3.03714 4.40789 27.64 1478.90 1021.308 2.25 2.26 9.645 3.08197 4.44787 27.94 1479.99 1021.513 2.55 2.56 9.760 3.10324 4.46385 28.07 1480.57 1021.594 2.85 2.86 9.847 3.11869 4.47483 28.15 1481.00 1021.649 3.15 3.16 9.928 3.14048 4.49562 28.31 1481.49 1021.757 3.45 3.46 10.013 3.16754 4.52332 28.51 1482.05 1021.903 3.75 3.75 10.084 3.22123 4.59077 28.99 1482.89 1022.266 4.05 4.05 10.128 3.25538 4.63361 29.29 1483.43 1022.497 4.35 4.35 10.153 3.27953 4.66469 29.51 1483.79 1022.666 4.65 4.65 10.174 3.28741 4.67303 29.57 1483.94 1022.712 4.95 4.95 10.199 3.29877 4.68586 29.67 1484.15 1022.781 5.25 5.25 10.213 3.30514 4.69300 29.72 1484.27 1022.820 5.55 5.55 10.223 3.30764 4.69529 29.73 1484.33 1022.834 5.85 5.85 10.231 3.31125 4.69937 29.76 1484.40 1022.857 6.15 6.15 10.240 3.31404 4.70214 29.78 1484.46 1022.872 6.45 6.45 10.248 3.31856 4.70742 29.82 1484.54 1022.902 6.75 6.74 10.249 3.32228 4.71253 29.86 1484.60 1022.931 7.05 7.04 10.252 3.32492 4.71588 29.88 1484.64 1022.950 7.35 7.34 10.257 3.32570 4.71636 29.89 1484.67 1022.954 7.65 7.64 10.262 3.32681 4.71722 29.89 1484.70 1022.959 7.95 7.94 10.282 3.33299 4.72331 29.94 1484.83 1022.993 8.25 8.24 10.287 3.33500 4.72559 29.95 1484.87 1023.006 8.55 8.54 10.290 3.33544 4.72571 29.95 1484.89 1023.008 8.85 8.84 10.292 3.33724 4.72811 29.97 1484.92 1023.022 9.15 9.14 10.293 3.33750 4.72826 29.97 1484.93 1023.024 9.45 9.43 10.297 3.33833 4.72895 29.98 1484.96 1023.029 9.75 9.73 10.296 3.34159 4.73372 30.01 1485.00 1023.056 10.05 10.03 10.292 3.34527 4.73939 30.05 1485.04 1023.089 10.35 10.33 10.293 3.34917 4.74477 30.09 1485.09 1023.119 10.65 10.63 10.305 3.35150 4.74645 30.10 1485.16 1023.129 10.95 10.93 10.316 3.35309 4.74723 30.11 1485.21 1023.134 11.25 11.23 10.321 3.35431 4.74831 30.12 1485.24 1023.141 11.55 11.53 10.324 3.35447 4.74814 30.11 1485.26 1023.141 11.85 11.83 10.327 3.35675 4.75100 30.14 1485.30 1023.157 12.15 12.12 10.339 3.35896 4.75246 30.15 1485.36 1023.166 12.45 12.42 10.354 3.36231 4.75515 30.17 1485.44 1023.181 12.75 12.72 10.364 3.36345 4.75551 30.17 1485.49 1023.183 13.05 13.02 10.373 3.36328 4.75397 30.16 1485.51 1023.175 13.35 13.32 10.381 3.36238 4.75165 30.15 1485.53 1023.163 13.65 13.62 10.393 3.36607 4.75525 30.17 1485.61 1023.183 13.95 13.92 10.413 3.37393 4.76364 30.23 1485.76 1023.229 14.25 14.22 10.441 3.38272 4.77231 30.30 1485.94 1023.276 14.55 14.52 10.467 3.39460 4.78557 30.39 1486.16 1023.348 14.85 14.81 10.479 3.40032 4.79200 30.44 1486.26 1023.383 15.15 15.11 10.493 3.40292 4.79381 30.45 1486.33 1023.393 15.45 15.41 10.507 3.40374 4.79304 30.45 1486.39 1023.389 15.75 15.71 10.516 3.40470 4.79318 30.45 1486.42 1023.391 16.05 16.01 10.519 3.40559 4.79411 30.46 1486.45 1023.397 16.35 16.31 10.519 3.40643 4.79517 30.47 1486.46 1023.404 16.65 16.61 10.525 3.40811 4.79675 30.48 1486.50 1023.413 16.95 16.91 10.529 3.40890 4.79735 30.48 1486.53 1023.418 17.25 17.20 10.528 3.40962 4.79843 30.49 1486.54 1023.425 17.55 17.50 10.530 3.40922 4.79766 30.48 1486.54 1023.422 17.85 17.80 10.532 3.40832 4.79613 30.47 1486.54 1023.415 18.15 18.10 10.537 3.41051 4.79860 30.49 1486.59 1023.429 18.45 18.40 10.541 3.41314 4.80175 30.51 1486.63 1023.447 18.75 18.70 10.547 3.41589 4.80469 30.54 1486.69 1023.464 19.05 19.00 10.552 3.41614 4.80441 30.53 1486.71 1023.463 19.35 19.30 10.554 3.41786 4.80657 30.55 1486.74 1023.476 19.65 19.59 10.556 3.42061 4.81021 30.58 1486.78 1023.498 19.95 19.89 10.564 3.42267 4.81192 30.59 1486.83 1023.508 20.25 20.19 10.572 3.42624 4.81592 30.62 1486.90 1023.530 20.55 20.49 10.574 3.42731 4.81722 30.63 1486.92 1023.538 20.85 20.79 10.578 3.42914 4.81924 30.64 1486.96 1023.550 21.15 21.09 10.587 3.43087 4.82045 30.65 1487.01 1023.558 21.45 21.39 10.591 3.43109 4.82012 30.65 1487.03 1023.557 21.75 21.69 10.599 3.43259 4.82117 30.66 1487.07 1023.563 22.05 21.98 10.603 3.43519 4.82425 30.68 1487.11 1023.581 22.35 22.28 10.607 3.43645 4.82553 30.69 1487.14 1023.589 22.65 22.58 10.612 3.43647 4.82487 30.68 1487.16 1023.586 22.95 22.88 10.618 3.43699 4.82481 30.68 1487.19 1023.587 23.25 23.18 10.620 3.43845 4.82664 30.70 1487.21 1023.598 23.55 23.48 10.621 3.43760 4.82531 30.69 1487.21 1023.592 23.85 23.78 10.620 3.43796 4.82581 30.69 1487.22 1023.596 24.15 24.08 10.624 3.44020 4.82845 30.71 1487.26 1023.611 24.45 24.37 10.625 3.44028 4.82842 30.71 1487.27 1023.612 24.75 24.67 10.628 3.44203 4.83053 30.73 1487.30 1023.625 25.05 24.97 10.629 3.44307 4.83186 30.73 1487.32 1023.633 25.35 25.27 10.634 3.44380 4.83216 30.74 1487.35 1023.636 25.65 25.57 10.636 3.44357 4.83158 30.73 1487.36 1023.634 25.95 25.87 10.636 3.44358 4.83159 30.73 1487.36 1023.635 26.25 26.17 10.632 3.44351 4.83207 30.74 1487.35 1023.639 26.55 26.47 10.627 3.44287 4.83189 30.73 1487.34 1023.640 26.85 26.76 10.627 3.44309 4.83215 30.74 1487.35 1023.643 27.15 27.06 10.630 3.44436 4.83355 30.75 1487.37 1023.652 27.45 27.36 10.632 3.44389 4.83256 30.74 1487.38 1023.647 27.75 27.66 10.634 3.44354 4.83183 30.73 1487.38 1023.644 28.05 27.96 10.633 3.44369 4.83212 30.74 1487.39 1023.647 28.35 28.26 10.631 3.44357 4.83230 30.74 1487.39 1023.650 28.65 28.56 10.632 3.44355 4.83206 30.73 1487.39 1023.649 29.09 29.00 10.634 3.44493 4.83377 30.75 1487.42 1023.661