*2026/01/16 10:37:46.34 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 21:49:27.000 END TIME : UTC 2025/01/23 21:49:54.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.67 2 Depth metres 0.15 40.5 3 Temperature 'deg C (ITS90)' 6.872 10.322 4 Conductivity S/m 2.81206 3.51024 5 Conductance:Specific S/m 4.41147 4.9691 6 Salinity PSS-78 27.33 31.66 7 Speed:Sound m/s 1468.57 1487.59 8 Density kg/m^3 1021.399 1024.478 $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 : 33 LATITUDE : 48 57.87700 N ! (deg min) LONGITUDE : 125 18.99770 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_214927 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 136 136 MERGEHDR 1.3 2026/01/16 10:35:38 136 136 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 136 136 CALIB 12.1 2026/01/16 10:37:10 136 136 CLEAN 5.3 2026/01/16 10:37:46 136 136 $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 6.872 2.81206 4.41147 27.33 1468.57 1021.399 0.45 0.45 7.016 2.83814 4.43231 27.49 1469.35 1021.511 0.75 0.75 7.212 2.85113 4.42562 27.48 1470.11 1021.476 1.05 1.05 7.456 2.88394 4.44288 27.63 1471.26 1021.567 1.35 1.35 7.688 2.91788 4.46318 27.80 1472.38 1021.673 1.65 1.65 8.003 2.99336 4.53496 28.34 1474.27 1022.055 1.95 1.95 8.436 3.06937 4.58987 28.78 1476.47 1022.340 2.25 2.24 8.747 3.12596 4.63146 29.11 1478.06 1022.555 2.55 2.54 8.938 3.16809 4.66741 29.38 1479.12 1022.744 2.85 2.84 9.163 3.21454 4.70468 29.67 1480.32 1022.938 3.15 3.14 9.364 3.22631 4.69434 29.62 1481.01 1022.872 3.45 3.44 9.560 3.23119 4.67473 29.51 1481.60 1022.756 3.75 3.74 9.766 3.23260 4.64910 29.36 1482.18 1022.605 4.05 4.04 9.871 3.25915 4.67314 29.54 1482.79 1022.730 4.35 4.34 9.928 3.27988 4.69516 29.70 1483.20 1022.848 4.65 4.64 10.020 3.28854 4.69525 29.71 1483.55 1022.844 4.95 4.94 10.077 3.30266 4.70767 29.80 1483.88 1022.909 5.25 5.23 10.119 3.31112 4.71411 29.85 1484.10 1022.942 5.55 5.53 10.157 3.32112 4.72325 29.92 1484.32 1022.991 5.85 5.83 10.193 3.32515 4.72418 29.93 1484.47 1022.995 6.15 6.13 10.206 3.33155 4.73154 29.99 1484.58 1023.036 6.45 6.43 10.208 3.33652 4.73827 30.03 1484.66 1023.073 6.75 6.73 10.223 3.34417 4.74710 30.10 1484.79 1023.122 7.05 7.03 10.238 3.34942 4.75253 30.14 1484.90 1023.152 7.35 7.33 10.235 3.35390 4.75929 30.18 1484.95 1023.190 7.65 7.63 10.238 3.35428 4.75947 30.19 1484.97 1023.192 7.95 7.92 10.236 3.35927 4.76683 30.24 1485.03 1023.234 8.25 8.22 10.238 3.36385 4.77309 30.28 1485.09 1023.270 8.55 8.52 10.240 3.36902 4.78005 30.33 1485.17 1023.309 8.85 8.82 10.247 3.37476 4.78735 30.38 1485.26 1023.350 9.15 9.12 10.252 3.37869 4.79218 30.42 1485.32 1023.377 9.45 9.42 10.256 3.38212 4.79653 30.45 1485.38 1023.402 9.75 9.72 10.260 3.38563 4.80101 30.48 1485.44 1023.427 10.05 10.02 10.261 3.38963 4.80647 30.52 1485.49 1023.458 10.35 10.32 10.263 3.39738 4.81725 30.59 1485.60 1023.519 10.65 10.61 10.263 3.40367 4.82614 30.66 1485.68 1023.569 10.95 10.91 10.262 3.40731 4.83147 30.69 1485.72 1023.599 11.25 11.21 10.263 3.41193 4.83780 30.74 1485.79 1023.635 11.55 11.51 10.264 3.41319 4.83948 30.75 1485.81 1023.646 11.85 11.81 10.266 3.41573 4.84281 30.77 1485.85 1023.665 12.15 12.11 10.265 3.41835 4.84669 30.80 1485.88 1023.688 12.45 12.41 10.259 3.42059 4.85068 30.83 1485.90 1023.711 12.75 12.71 10.246 3.42088 4.85291 30.84 1485.87 1023.726 13.05 13.00 10.241 3.42093 4.85359 30.85 1485.87 1023.731 13.35 13.30 10.237 3.42267 4.85659 30.87 1485.88 1023.749 13.65 13.60 10.229 3.42318 4.85854 30.88 1485.87 1023.762 13.95 13.90 10.208 3.42502 4.86396 30.92 1485.85 1023.794 14.25 14.20 10.207 3.42887 4.86960 30.95 1485.89 1023.827 14.55 14.50 10.212 3.43042 4.87113 30.97 1485.93 1023.836 14.85 14.80 10.219 3.43134 4.87145 30.97 1485.97 1023.839 15.15 15.10 10.224 3.43319 4.87333 30.98 1486.01 1023.850 15.45 15.39 10.229 3.43571 4.87629 31.00 1486.05 1023.867 15.75 15.69 10.232 3.43750 4.87834 31.02 1486.09 1023.879 16.05 15.99 10.237 3.44025 4.88154 31.04 1486.14 1023.898 16.35 16.29 10.246 3.44194 4.88276 31.05 1486.19 1023.905 16.65 16.59 10.255 3.44461 4.88533 31.07 1486.25 1023.920 16.95 16.89 10.259 3.44949 4.89158 31.12 1486.32 1023.955 17.25 17.19 10.269 3.45209 4.89391 31.13 1486.38 1023.969 17.55 17.48 10.280 3.45289 4.89351 31.13 1486.43 1023.967 17.85 17.78 10.280 3.45365 4.89457 31.14 1486.44 1023.974 18.15 18.08 10.282 3.45455 4.89558 31.15 1486.46 1023.981 18.45 18.38 10.277 3.45486 4.89675 31.15 1486.46 1023.989 18.75 18.68 10.280 3.45729 4.89984 31.18 1486.50 1024.007 19.05 18.98 10.283 3.45762 4.89981 31.18 1486.52 1024.008 19.35 19.28 10.284 3.45857 4.90101 31.18 1486.54 1024.015 19.65 19.58 10.284 3.45891 4.90146 31.19 1486.54 1024.019 19.95 19.87 10.283 3.45966 4.90269 31.20 1486.56 1024.027 20.25 20.17 10.284 3.46196 4.90589 31.22 1486.59 1024.046 20.55 20.47 10.287 3.46456 4.90908 31.24 1486.63 1024.065 20.85 20.77 10.290 3.46630 4.91115 31.26 1486.67 1024.077 21.15 21.07 10.292 3.46932 4.91519 31.28 1486.71 1024.100 21.45 21.37 10.294 3.47032 4.91623 31.29 1486.74 1024.107 21.75 21.67 10.297 3.47098 4.91685 31.30 1486.76 1024.112 22.05 21.96 10.296 3.47140 4.91759 31.30 1486.76 1024.117 22.35 22.26 10.294 3.47242 4.91933 31.31 1486.77 1024.128 22.65 22.56 10.289 3.47260 4.92019 31.32 1486.77 1024.134 22.95 22.86 10.287 3.47291 4.92099 31.32 1486.77 1024.140 23.25 23.16 10.285 3.47535 4.92474 31.35 1486.80 1024.162 23.55 23.46 10.283 3.47518 4.92465 31.35 1486.80 1024.163 23.85 23.76 10.281 3.47577 4.92587 31.36 1486.81 1024.171 24.15 24.05 10.280 3.47673 4.92731 31.37 1486.82 1024.181 24.45 24.35 10.269 3.47716 4.92941 31.38 1486.80 1024.194 24.75 24.65 10.257 3.47794 4.93229 31.40 1486.79 1024.212 25.05 24.95 10.255 3.47875 4.93374 31.41 1486.80 1024.222 25.35 25.25 10.255 3.47873 4.93374 31.41 1486.80 1024.223 25.65 25.55 10.242 3.47845 4.93505 31.42 1486.77 1024.232 25.95 25.85 10.242 3.47910 4.93599 31.42 1486.78 1024.239 26.25 26.14 10.246 3.47904 4.93530 31.42 1486.80 1024.236 26.55 26.44 10.244 3.47918 4.93590 31.42 1486.80 1024.241 26.85 26.74 10.249 3.47985 4.93610 31.42 1486.82 1024.243 27.15 27.04 10.256 3.48148 4.93745 31.43 1486.86 1024.251 27.45 27.34 10.260 3.48286 4.93888 31.45 1486.90 1024.260 27.75 27.64 10.261 3.48408 4.94036 31.46 1486.92 1024.269 28.05 27.94 10.264 3.48513 4.94145 31.46 1486.95 1024.276 28.35 28.23 10.267 3.48587 4.94212 31.47 1486.97 1024.281 28.65 28.53 10.269 3.48674 4.94311 31.48 1486.99 1024.287 28.95 28.83 10.271 3.48720 4.94341 31.48 1487.00 1024.290 29.25 29.13 10.272 3.48787 4.94426 31.48 1487.02 1024.296 29.55 29.43 10.272 3.48844 4.94512 31.49 1487.03 1024.302 29.85 29.73 10.271 3.48898 4.94592 31.50 1487.04 1024.308 30.15 30.03 10.272 3.48916 4.94603 31.50 1487.05 1024.310 30.45 30.32 10.275 3.49067 4.94780 31.51 1487.08 1024.320 30.75 30.62 10.276 3.49094 4.94804 31.51 1487.09 1024.323 31.05 30.92 10.277 3.49223 4.94970 31.52 1487.11 1024.333 31.35 31.22 10.278 3.49225 4.94957 31.52 1487.12 1024.334 31.65 31.52 10.279 3.49220 4.94942 31.52 1487.13 1024.334 31.95 31.82 10.280 3.49337 4.95087 31.53 1487.15 1024.343 32.25 32.12 10.281 3.49351 4.95104 31.53 1487.16 1024.345 32.55 32.41 10.280 3.49410 4.95190 31.54 1487.17 1024.351 32.85 32.71 10.281 3.49410 4.95176 31.54 1487.17 1024.352 33.15 33.01 10.281 3.49376 4.95140 31.53 1487.17 1024.351 33.45 33.31 10.282 3.49436 4.95211 31.54 1487.19 1024.356 33.75 33.61 10.282 3.49418 4.95182 31.54 1487.19 1024.356 34.05 33.91 10.280 3.49424 4.95212 31.54 1487.19 1024.359 34.35 34.21 10.281 3.49394 4.95162 31.53 1487.19 1024.357 34.65 34.50 10.281 3.49428 4.95205 31.54 1487.20 1024.361 34.95 34.80 10.282 3.49462 4.95248 31.54 1487.21 1024.365 35.25 35.10 10.282 3.49447 4.95213 31.54 1487.22 1024.364 35.55 35.40 10.283 3.49551 4.95357 31.55 1487.24 1024.373 35.85 35.70 10.285 3.49599 4.95390 31.55 1487.25 1024.376 36.15 36.00 10.290 3.49850 4.95674 31.57 1487.30 1024.393 36.45 36.30 10.293 3.49995 4.95837 31.58 1487.33 1024.403 36.75 36.59 10.288 3.50235 4.96254 31.61 1487.35 1024.427 37.05 36.89 10.292 3.50376 4.96396 31.62 1487.39 1024.436 37.35 37.19 10.301 3.50486 4.96428 31.63 1487.43 1024.438 37.65 37.49 10.305 3.50481 4.96361 31.62 1487.44 1024.436 37.95 37.79 10.302 3.50551 4.96497 31.63 1487.45 1024.445 38.25 38.09 10.307 3.50722 4.96679 31.64 1487.48 1024.456 38.55 38.39 10.312 3.50774 4.96675 31.64 1487.51 1024.456 38.85 38.68 10.316 3.50776 4.96625 31.64 1487.52 1024.454 39.15 38.98 10.316 3.50872 4.96755 31.65 1487.54 1024.463 39.45 39.28 10.318 3.50886 4.96756 31.65 1487.55 1024.464 39.75 39.58 10.320 3.50901 4.96740 31.65 1487.56 1024.464 40.05 39.88 10.322 3.50910 4.96724 31.65 1487.58 1024.464 40.35 40.18 10.320 3.50948 4.96817 31.65 1487.58 1024.471 40.67 40.50 10.321 3.51024 4.96910 31.66 1487.59 1024.478