*2026/01/16 10:37:46.58 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/24 00:31:42.000 END TIME : UTC 2025/01/24 00:32:08.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 131 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.12 2 Depth metres 0.15 38.94 3 Temperature 'deg C (ITS90)' 8.37 10.387 4 Conductivity S/m 3.05845 3.50589 5 Conductance:Specific S/m 4.58257 4.96733 6 Salinity PSS-78 28.72 31.64 7 Speed:Sound m/s 1476.12 1487.44 8 Density kg/m^3 1022.295 1024.464 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 37 LATITUDE : 48 53.09280 N ! (deg min) LONGITUDE : 125 2.85960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250124_003142 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 131 131 MERGEHDR 1.3 2026/01/16 10:35:38 131 131 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 131 131 CALIB 12.1 2026/01/16 10:37:10 131 131 CLEAN 5.3 2026/01/16 10:37:46 131 131 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 10:37:42 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 8.370 3.05845 4.58257 28.72 1476.12 1022.295 0.45 0.45 8.377 3.06090 4.58527 28.74 1476.17 1022.311 0.75 0.75 8.390 3.06257 4.58601 28.74 1476.24 1022.316 1.05 1.05 8.402 3.06676 4.59069 28.78 1476.33 1022.342 1.35 1.35 8.408 3.07046 4.59538 28.81 1476.40 1022.369 1.65 1.65 8.403 3.07589 4.60425 28.87 1476.46 1022.418 1.95 1.94 8.410 3.07558 4.60278 28.86 1476.48 1022.411 2.25 2.24 8.450 3.07685 4.59920 28.84 1476.61 1022.392 2.55 2.54 8.539 3.09571 4.61506 28.97 1477.10 1022.476 2.85 2.84 8.700 3.11128 4.61610 28.99 1477.75 1022.477 3.15 3.14 8.902 3.14269 4.63496 29.15 1478.71 1022.572 3.45 3.44 9.080 3.19652 4.68967 29.56 1479.88 1022.863 3.75 3.74 9.271 3.23284 4.71657 29.77 1480.85 1023.001 4.05 4.04 9.447 3.27091 4.74769 30.01 1481.80 1023.163 4.35 4.34 9.601 3.29259 4.75789 30.10 1482.48 1023.211 4.65 4.64 9.761 3.30715 4.75694 30.11 1483.09 1023.198 4.95 4.93 9.888 3.36061 4.81633 30.54 1484.09 1023.516 5.25 5.23 10.012 3.41074 4.87082 30.94 1485.03 1023.808 5.55 5.53 10.238 3.43739 4.87737 31.02 1485.94 1023.830 5.85 5.83 10.284 3.44021 4.87501 31.01 1486.10 1023.815 6.15 6.13 10.350 3.44379 4.87093 30.99 1486.32 1023.789 6.45 6.43 10.353 3.44331 4.86984 30.98 1486.32 1023.784 6.75 6.73 10.355 3.44291 4.86911 30.97 1486.33 1023.782 7.05 7.03 10.354 3.44294 4.86918 30.97 1486.33 1023.783 7.35 7.32 10.354 3.44403 4.87078 30.98 1486.35 1023.793 7.65 7.62 10.355 3.44812 4.87638 31.02 1486.40 1023.825 7.95 7.92 10.359 3.45022 4.87890 31.04 1486.44 1023.840 8.25 8.22 10.359 3.45141 4.88051 31.05 1486.46 1023.850 8.55 8.52 10.356 3.45169 4.88136 31.06 1486.46 1023.857 8.85 8.82 10.353 3.45272 4.88325 31.07 1486.47 1023.868 9.15 9.12 10.354 3.45319 4.88376 31.07 1486.49 1023.872 9.45 9.41 10.351 3.45322 4.88416 31.08 1486.48 1023.876 9.75 9.71 10.352 3.45415 4.88535 31.09 1486.50 1023.884 10.05 10.01 10.347 3.45518 4.88749 31.10 1486.51 1023.897 10.35 10.31 10.345 3.45548 4.88824 31.10 1486.51 1023.903 10.65 10.61 10.349 3.45637 4.88896 31.11 1486.54 1023.908 10.95 10.91 10.357 3.45783 4.88989 31.12 1486.58 1023.914 11.25 11.21 10.361 3.45995 4.89229 31.14 1486.62 1023.928 11.55 11.51 10.359 3.46027 4.89311 31.14 1486.62 1023.934 11.85 11.80 10.362 3.46164 4.89451 31.15 1486.65 1023.942 12.15 12.10 10.368 3.46314 4.89584 31.16 1486.69 1023.950 12.45 12.40 10.372 3.46367 4.89605 31.16 1486.71 1023.953 12.75 12.70 10.381 3.46479 4.89645 31.17 1486.75 1023.955 13.05 13.00 10.383 3.46528 4.89679 31.17 1486.77 1023.958 13.35 13.30 10.384 3.46621 4.89802 31.18 1486.79 1023.966 13.65 13.60 10.384 3.46664 4.89861 31.18 1486.80 1023.971 13.95 13.89 10.384 3.46781 4.90032 31.19 1486.82 1023.982 14.25 14.19 10.384 3.46867 4.90144 31.20 1486.83 1023.989 14.55 14.49 10.382 3.46932 4.90267 31.21 1486.84 1023.997 14.85 14.79 10.386 3.47002 4.90310 31.21 1486.86 1024.000 15.15 15.09 10.384 3.47016 4.90362 31.22 1486.86 1024.005 15.45 15.39 10.386 3.47035 4.90362 31.22 1486.88 1024.006 15.75 15.69 10.387 3.47091 4.90420 31.22 1486.89 1024.010 16.05 15.99 10.386 3.47117 4.90474 31.22 1486.90 1024.015 16.35 16.28 10.384 3.47166 4.90569 31.23 1486.90 1024.021 16.65 16.58 10.381 3.47281 4.90772 31.24 1486.91 1024.034 16.95 16.88 10.379 3.47424 4.91004 31.26 1486.93 1024.048 17.25 17.18 10.379 3.47406 4.90980 31.26 1486.93 1024.048 17.55 17.48 10.367 3.47511 4.91288 31.28 1486.92 1024.067 17.85 17.78 10.368 3.47653 4.91481 31.29 1486.94 1024.079 18.15 18.08 10.364 3.47799 4.91747 31.31 1486.95 1024.095 18.45 18.37 10.362 3.47915 4.91938 31.32 1486.97 1024.107 18.75 18.67 10.360 3.47966 4.92034 31.33 1486.97 1024.114 19.05 18.97 10.354 3.47865 4.91972 31.32 1486.95 1024.112 19.35 19.27 10.347 3.47806 4.91990 31.32 1486.93 1024.115 19.65 19.57 10.339 3.47781 4.92066 31.33 1486.91 1024.121 19.95 19.87 10.334 3.47901 4.92307 31.35 1486.92 1024.136 20.25 20.17 10.327 3.47977 4.92514 31.36 1486.91 1024.149 20.55 20.46 10.325 3.48034 4.92617 31.37 1486.92 1024.156 20.85 20.76 10.323 3.48186 4.92866 31.38 1486.94 1024.171 21.15 21.06 10.318 3.48224 4.92989 31.39 1486.94 1024.180 21.45 21.36 10.314 3.48315 4.93166 31.40 1486.94 1024.191 21.75 21.66 10.312 3.48366 4.93270 31.41 1486.95 1024.198 22.05 21.96 10.311 3.48374 4.93299 31.41 1486.95 1024.201 22.35 22.26 10.309 3.48395 4.93350 31.42 1486.95 1024.205 22.65 22.55 10.308 3.48421 4.93395 31.42 1486.96 1024.209 22.95 22.85 10.309 3.48549 4.93567 31.43 1486.98 1024.219 23.25 23.15 10.309 3.48602 4.93643 31.44 1486.99 1024.225 23.55 23.45 10.309 3.48589 4.93620 31.43 1487.00 1024.225 23.85 23.75 10.308 3.48695 4.93786 31.45 1487.01 1024.235 24.15 24.05 10.306 3.48787 4.93947 31.46 1487.02 1024.246 24.45 24.35 10.304 3.48768 4.93947 31.46 1487.02 1024.247 24.75 24.65 10.301 3.48795 4.94034 31.46 1487.02 1024.253 25.05 24.94 10.303 3.48897 4.94144 31.47 1487.04 1024.260 25.35 25.24 10.304 3.49134 4.94462 31.49 1487.08 1024.279 25.65 25.54 10.304 3.49279 4.94671 31.51 1487.10 1024.292 25.95 25.84 10.304 3.49370 4.94796 31.52 1487.12 1024.300 26.25 26.14 10.304 3.49525 4.95019 31.53 1487.14 1024.314 26.55 26.44 10.304 3.49537 4.95034 31.53 1487.15 1024.316 26.85 26.74 10.304 3.49560 4.95075 31.53 1487.15 1024.319 27.15 27.03 10.305 3.49598 4.95111 31.54 1487.17 1024.323 27.45 27.33 10.300 3.49559 4.95124 31.54 1487.15 1024.325 27.75 27.63 10.295 3.49500 4.95111 31.54 1487.14 1024.326 28.05 27.93 10.294 3.49502 4.95134 31.54 1487.14 1024.328 28.35 28.23 10.294 3.49558 4.95206 31.54 1487.15 1024.334 28.65 28.53 10.294 3.49578 4.95243 31.54 1487.16 1024.337 28.95 28.82 10.293 3.49625 4.95315 31.55 1487.17 1024.342 29.25 29.12 10.282 3.49554 4.95371 31.55 1487.14 1024.347 29.55 29.42 10.269 3.49546 4.95540 31.56 1487.11 1024.359 29.85 29.72 10.278 3.49638 4.95541 31.56 1487.15 1024.359 30.15 30.02 10.282 3.49688 4.95565 31.57 1487.17 1024.362 30.45 30.32 10.286 3.49811 4.95682 31.57 1487.20 1024.369 30.75 30.62 10.281 3.49780 4.95699 31.57 1487.19 1024.372 31.05 30.91 10.284 3.49821 4.95728 31.58 1487.20 1024.375 31.35 31.21 10.278 3.49811 4.95787 31.58 1487.19 1024.379 31.65 31.51 10.282 3.49824 4.95751 31.58 1487.21 1024.378 31.95 31.81 10.285 3.49832 4.95729 31.58 1487.22 1024.378 32.25 32.11 10.286 3.49881 4.95784 31.58 1487.23 1024.383 32.55 32.41 10.286 3.49831 4.95714 31.58 1487.23 1024.380 32.85 32.71 10.285 3.49872 4.95776 31.58 1487.24 1024.385 33.15 33.00 10.285 3.49915 4.95839 31.58 1487.25 1024.389 33.45 33.30 10.288 3.49914 4.95802 31.58 1487.26 1024.388 33.75 33.60 10.288 3.50026 4.95957 31.59 1487.28 1024.398 34.05 33.90 10.289 3.50041 4.95964 31.59 1487.29 1024.400 34.35 34.20 10.289 3.50051 4.95981 31.59 1487.29 1024.402 34.65 34.50 10.288 3.50033 4.95968 31.59 1487.30 1024.403 34.95 34.80 10.289 3.50056 4.95989 31.59 1487.30 1024.405 35.25 35.09 10.289 3.50042 4.95958 31.59 1487.31 1024.404 35.55 35.39 10.291 3.50087 4.96008 31.60 1487.32 1024.408 35.85 35.69 10.289 3.50102 4.96048 31.60 1487.33 1024.412 36.15 35.99 10.289 3.50149 4.96114 31.60 1487.34 1024.417 36.45 36.29 10.290 3.50292 4.96304 31.62 1487.36 1024.428 36.75 36.59 10.290 3.50478 4.96564 31.63 1487.39 1024.444 37.05 36.89 10.290 3.50493 4.96583 31.64 1487.40 1024.446 37.35 37.18 10.290 3.50587 4.96717 31.64 1487.41 1024.455 37.65 37.48 10.292 3.50583 4.96685 31.64 1487.42 1024.454 37.95 37.78 10.291 3.50583 4.96696 31.64 1487.42 1024.456 38.25 38.08 10.290 3.50560 4.96678 31.64 1487.42 1024.457 38.55 38.38 10.290 3.50529 4.96641 31.64 1487.42 1024.456 38.85 38.68 10.289 3.50559 4.96695 31.64 1487.43 1024.460 39.12 38.94 10.290 3.50589 4.96733 31.64 1487.44 1024.464