*2026/01/16 10:37:46.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/24 16:37:38.000 END TIME : UTC 2025/01/24 16:38:05.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 140 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.99 2 Depth metres 0.15 41.79 3 Temperature 'deg C (ITS90)' 9.816 10.409 4 Conductivity S/m 3.32219 3.50436 5 Conductance:Specific S/m 4.73707 4.97908 6 Salinity PSS-78 30.01 31.71 7 Speed:Sound m/s 1483.83 1487.27 8 Density kg/m^3 1023.05 1024.546 $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 : 39 LATITUDE : 49 3.38650 N ! (deg min) LONGITUDE : 124 50.48920 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250124_163738 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 140 140 MERGEHDR 1.3 2026/01/16 10:35:38 140 140 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 140 140 CALIB 12.1 2026/01/16 10:37:10 140 140 CLEAN 5.3 2026/01/16 10:37:46 140 140 $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 10.066 3.32219 4.73707 30.01 1484.01 1023.050 0.45 0.45 10.026 3.35768 4.79306 30.40 1484.34 1023.361 0.75 0.75 9.938 3.35787 4.80542 30.48 1484.12 1023.435 1.05 1.05 9.858 3.35618 4.81408 30.53 1483.89 1023.489 1.35 1.34 9.828 3.35755 4.82026 30.57 1483.83 1023.526 1.65 1.64 9.816 3.36606 4.83403 30.66 1483.91 1023.604 1.95 1.94 9.820 3.36874 4.83737 30.69 1483.96 1023.623 2.25 2.24 9.993 3.37884 4.82790 30.64 1484.54 1023.561 2.55 2.54 10.134 3.38871 4.82261 30.62 1485.03 1023.524 2.85 2.84 10.200 3.40189 4.83229 30.70 1485.37 1023.574 3.15 3.14 10.280 3.40478 4.82532 30.66 1485.62 1023.531 3.45 3.44 10.332 3.40933 4.82470 30.66 1485.81 1023.525 3.75 3.73 10.384 3.41214 4.82164 30.64 1485.98 1023.506 4.05 4.03 10.391 3.41786 4.82877 30.69 1486.07 1023.546 4.35 4.33 10.397 3.42062 4.83177 30.72 1486.13 1023.563 4.65 4.63 10.401 3.42241 4.83381 30.73 1486.16 1023.575 4.95 4.93 10.405 3.42388 4.83535 30.74 1486.20 1023.585 5.25 5.23 10.402 3.42330 4.83493 30.74 1486.19 1023.584 5.55 5.53 10.385 3.42667 4.84195 30.79 1486.19 1023.625 5.85 5.83 10.394 3.43111 4.84707 30.82 1486.27 1023.654 6.15 6.13 10.403 3.43751 4.85484 30.88 1486.37 1023.697 6.45 6.42 10.409 3.44087 4.85881 30.91 1486.43 1023.720 6.75 6.72 10.409 3.44128 4.85927 30.91 1486.45 1023.724 7.05 7.02 10.405 3.44110 4.85965 30.91 1486.44 1023.727 7.35 7.32 10.400 3.44407 4.86450 30.95 1486.47 1023.756 7.65 7.62 10.402 3.44594 4.86688 30.96 1486.50 1023.770 7.95 7.92 10.393 3.44805 4.87111 30.99 1486.50 1023.795 8.25 8.22 10.388 3.44792 4.87159 30.99 1486.50 1023.799 8.55 8.51 10.379 3.45282 4.87981 31.05 1486.54 1023.846 8.85 8.81 10.383 3.45497 4.88228 31.07 1486.58 1023.861 9.15 9.11 10.389 3.45668 4.88385 31.08 1486.62 1023.870 9.45 9.41 10.391 3.45853 4.88617 31.10 1486.65 1023.884 9.75 9.71 10.391 3.45951 4.88753 31.11 1486.67 1023.893 10.05 10.01 10.395 3.46087 4.88899 31.12 1486.70 1023.902 10.35 10.31 10.386 3.46336 4.89372 31.15 1486.71 1023.930 10.65 10.61 10.376 3.46365 4.89547 31.16 1486.69 1023.942 10.95 10.90 10.374 3.46464 4.89718 31.17 1486.70 1023.952 11.25 11.20 10.372 3.46648 4.89998 31.19 1486.73 1023.969 11.55 11.50 10.377 3.46680 4.89981 31.19 1486.75 1023.969 11.85 11.80 10.376 3.46755 4.90103 31.20 1486.76 1023.977 12.15 12.10 10.378 3.46710 4.90001 31.19 1486.77 1023.973 12.45 12.40 10.375 3.46841 4.90239 31.21 1486.78 1023.987 12.75 12.70 10.377 3.46909 4.90304 31.21 1486.79 1023.992 13.05 12.99 10.381 3.46888 4.90220 31.21 1486.81 1023.988 13.35 13.29 10.379 3.46914 4.90279 31.21 1486.81 1023.993 13.65 13.59 10.366 3.46820 4.90335 31.21 1486.77 1023.998 13.95 13.89 10.358 3.46786 4.90391 31.22 1486.75 1024.003 14.25 14.19 10.352 3.46868 4.90587 31.23 1486.75 1024.016 14.55 14.49 10.367 3.46933 4.90473 31.22 1486.80 1024.010 14.85 14.79 10.334 3.46740 4.90665 31.23 1486.70 1024.024 15.15 15.09 10.324 3.47186 4.91429 31.28 1486.73 1024.068 15.45 15.38 10.339 3.47229 4.91280 31.28 1486.78 1024.060 15.75 15.68 10.344 3.47195 4.91166 31.27 1486.79 1024.054 16.05 15.98 10.347 3.47184 4.91105 31.26 1486.80 1024.052 16.35 16.28 10.348 3.47237 4.91166 31.27 1486.82 1024.057 16.65 16.58 10.343 3.47269 4.91288 31.28 1486.81 1024.065 16.95 16.88 10.313 3.47142 4.91517 31.29 1486.73 1024.081 17.25 17.18 10.286 3.47337 4.92178 31.33 1486.68 1024.121 17.55 17.47 10.314 3.47494 4.92010 31.32 1486.78 1024.111 17.85 17.77 10.328 3.47552 4.91896 31.32 1486.83 1024.105 18.15 18.07 10.330 3.47644 4.91990 31.32 1486.85 1024.111 18.45 18.37 10.331 3.47597 4.91909 31.32 1486.85 1024.108 18.75 18.67 10.326 3.47595 4.91981 31.32 1486.84 1024.113 19.05 18.97 10.326 3.47598 4.91985 31.32 1486.85 1024.115 19.35 19.27 10.323 3.47669 4.92134 31.33 1486.85 1024.125 19.65 19.56 10.325 3.47720 4.92174 31.34 1486.87 1024.128 19.95 19.86 10.327 3.47786 4.92237 31.34 1486.89 1024.132 20.25 20.16 10.325 3.47858 4.92366 31.35 1486.90 1024.141 20.55 20.46 10.323 3.47996 4.92596 31.36 1486.91 1024.155 20.85 20.76 10.320 3.47945 4.92554 31.36 1486.90 1024.154 21.15 21.06 10.321 3.48045 4.92691 31.37 1486.92 1024.163 21.45 21.36 10.320 3.48098 4.92775 31.38 1486.93 1024.169 21.75 21.66 10.318 3.48129 4.92843 31.38 1486.94 1024.174 22.05 21.95 10.315 3.48062 4.92791 31.38 1486.93 1024.173 22.35 22.25 10.310 3.48126 4.92955 31.39 1486.92 1024.183 22.65 22.55 10.304 3.48105 4.93011 31.39 1486.91 1024.188 22.95 22.85 10.302 3.48236 4.93229 31.41 1486.93 1024.201 23.25 23.15 10.302 3.48330 4.93356 31.41 1486.94 1024.210 23.55 23.45 10.298 3.48335 4.93417 31.42 1486.94 1024.215 23.85 23.75 10.291 3.48394 4.93601 31.43 1486.93 1024.226 24.15 24.04 10.296 3.48432 4.93583 31.43 1486.95 1024.226 24.45 24.34 10.296 3.48447 4.93608 31.43 1486.96 1024.229 24.75 24.64 10.291 3.48403 4.93619 31.43 1486.95 1024.231 25.05 24.94 10.288 3.48614 4.93955 31.45 1486.97 1024.251 25.35 25.24 10.288 3.48768 4.94173 31.47 1486.99 1024.265 25.65 25.54 10.281 3.48790 4.94298 31.48 1486.98 1024.273 25.95 25.84 10.275 3.48795 4.94391 31.48 1486.97 1024.280 26.25 26.13 10.274 3.48904 4.94568 31.50 1486.99 1024.291 26.55 26.43 10.276 3.49087 4.94799 31.51 1487.02 1024.305 26.85 26.73 10.276 3.49146 4.94881 31.52 1487.03 1024.311 27.15 27.03 10.276 3.49160 4.94897 31.52 1487.04 1024.313 27.45 27.33 10.272 3.49230 4.95056 31.53 1487.04 1024.323 27.75 27.63 10.270 3.49318 4.95209 31.54 1487.05 1024.333 28.05 27.93 10.272 3.49378 4.95262 31.54 1487.07 1024.337 28.35 28.22 10.270 3.49397 4.95310 31.55 1487.07 1024.341 28.65 28.52 10.269 3.49426 4.95368 31.55 1487.08 1024.346 28.95 28.82 10.268 3.49450 4.95418 31.55 1487.08 1024.350 29.25 29.12 10.255 3.49341 4.95448 31.55 1487.04 1024.354 29.55 29.42 10.214 3.49349 4.96039 31.59 1486.94 1024.390 29.85 29.72 10.241 3.49436 4.95773 31.58 1487.03 1024.375 30.15 30.02 10.259 3.49571 4.95725 31.57 1487.09 1024.372 30.45 30.31 10.263 3.49687 4.95827 31.58 1487.12 1024.379 30.75 30.61 10.265 3.49732 4.95867 31.58 1487.14 1024.382 31.05 30.91 10.264 3.49766 4.95927 31.59 1487.14 1024.387 31.35 31.21 10.266 3.49817 4.95974 31.59 1487.16 1024.391 31.65 31.51 10.267 3.49861 4.96018 31.59 1487.17 1024.394 31.95 31.81 10.266 3.49924 4.96118 31.60 1487.18 1024.401 32.25 32.10 10.264 3.49891 4.96105 31.60 1487.18 1024.402 32.55 32.40 10.265 3.49950 4.96169 31.60 1487.19 1024.406 32.85 32.70 10.264 3.49934 4.96158 31.60 1487.19 1024.407 33.15 33.00 10.260 3.49942 4.96229 31.61 1487.19 1024.413 33.45 33.30 10.260 3.49997 4.96311 31.61 1487.20 1024.418 33.75 33.60 10.254 3.50054 4.96475 31.62 1487.20 1024.429 34.05 33.90 10.253 3.50023 4.96445 31.62 1487.20 1024.429 34.35 34.19 10.255 3.50105 4.96537 31.63 1487.21 1024.435 34.65 34.49 10.255 3.50080 4.96497 31.63 1487.22 1024.434 34.95 34.79 10.254 3.50109 4.96546 31.63 1487.22 1024.438 35.25 35.09 10.253 3.50168 4.96649 31.64 1487.23 1024.445 35.55 35.39 10.252 3.50316 4.96870 31.65 1487.25 1024.459 35.85 35.69 10.251 3.50343 4.96933 31.66 1487.26 1024.463 36.15 35.99 10.247 3.50349 4.96985 31.66 1487.25 1024.468 36.45 36.28 10.246 3.50436 4.97132 31.67 1487.27 1024.477 36.75 36.58 10.240 3.50398 4.97162 31.67 1487.25 1024.481 37.05 36.88 10.237 3.50425 4.97234 31.67 1487.25 1024.486 37.35 37.18 10.228 3.50405 4.97340 31.68 1487.23 1024.494 37.65 37.48 10.224 3.50352 4.97315 31.68 1487.22 1024.494 37.95 37.78 10.224 3.50297 4.97241 31.67 1487.22 1024.491 38.25 38.08 10.216 3.50253 4.97289 31.68 1487.20 1024.495 38.55 38.37 10.210 3.50197 4.97302 31.68 1487.18 1024.498 38.85 38.67 10.202 3.50272 4.97513 31.69 1487.17 1024.511 39.15 38.97 10.198 3.50245 4.97540 31.69 1487.16 1024.515 39.45 39.27 10.195 3.50271 4.97615 31.70 1487.16 1024.520 39.75 39.57 10.196 3.50275 4.97607 31.69 1487.17 1024.521 40.05 39.87 10.196 3.50314 4.97656 31.70 1487.18 1024.525 40.35 40.16 10.193 3.50262 4.97623 31.70 1487.17 1024.524 40.65 40.46 10.186 3.50309 4.97794 31.71 1487.17 1024.536 40.95 40.76 10.187 3.50379 4.97881 31.71 1487.18 1024.542 41.25 41.06 10.185 3.50338 4.97852 31.71 1487.18 1024.541 41.55 41.36 10.181 3.50338 4.97908 31.71 1487.17 1024.546 41.99 41.79 10.182 3.50325 4.97878 31.71 1487.18 1024.546