*2026/01/16 09:47:05.49 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/19 20:22:35.000 END TIME : UTC 2023/12/19 20:22:56.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 107 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.04 2 Depth metres 0.15 31.92 3 Temperature 'deg C (ITS90)' 10.36 10.502 4 Conductivity S/m 3.24808 3.46811 5 Conductance:Specific S/m 4.59202 4.89777 6 Salinity PSS-78 29.03 31.17 7 Speed:Sound m/s 1483.9 1487.16 8 Density kg/m^3 1022.238 1024.042 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 105 LATITUDE : 50 28.99750 N ! (deg min) LONGITUDE : 127 46.44620 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231219_202235 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 107 107 MERGEHDR 1.3 2026/01/15 13:41:48 107 107 HDREDIT2 3.2 2026/01/15 14:00:58 ? ? REMOVECH 8.2 2026/01/15 14:01:18 107 107 CALIB 12.1 2026/01/16 09:46:10 107 107 CLEAN 5.3 2026/01/16 09:47:05 107 107 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:58 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:10 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 09:47:01 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 10.360 3.24886 4.59392 29.04 1483.90 1022.247 0.45 0.45 10.367 3.24808 4.59202 29.03 1483.91 1022.238 0.75 0.75 10.365 3.25087 4.59619 29.06 1483.95 1022.262 1.05 1.05 10.367 3.25111 4.59629 29.06 1483.96 1022.264 1.35 1.35 10.370 3.25222 4.59739 29.07 1483.99 1022.271 1.65 1.65 10.375 3.25451 4.59996 29.09 1484.03 1022.286 1.95 1.94 10.375 3.25553 4.60149 29.10 1484.05 1022.295 2.25 2.24 10.378 3.25691 4.60302 29.11 1484.08 1022.305 2.55 2.54 10.381 3.25954 4.60636 29.13 1484.12 1022.324 2.85 2.84 10.383 3.26063 4.60764 29.14 1484.15 1022.332 3.15 3.14 10.384 3.26032 4.60708 29.14 1484.15 1022.330 3.45 3.44 10.388 3.26077 4.60718 29.14 1484.17 1022.332 3.75 3.74 10.394 3.26153 4.60749 29.14 1484.20 1022.334 4.05 4.04 10.408 3.26571 4.61153 29.17 1484.29 1022.356 4.35 4.34 10.416 3.26746 4.61291 29.18 1484.34 1022.365 4.65 4.64 10.425 3.26991 4.61531 29.20 1484.40 1022.378 4.95 4.94 10.428 3.27071 4.61602 29.20 1484.42 1022.383 5.25 5.23 10.429 3.27202 4.61775 29.21 1484.44 1022.394 5.55 5.53 10.430 3.27248 4.61827 29.22 1484.45 1022.398 5.85 5.83 10.434 3.27571 4.62226 29.25 1484.51 1022.421 6.15 6.13 10.443 3.27848 4.62496 29.27 1484.57 1022.436 6.45 6.43 10.454 3.28269 4.62945 29.30 1484.66 1022.461 6.75 6.73 10.466 3.28623 4.63294 29.32 1484.73 1022.480 7.05 7.03 10.471 3.29014 4.63779 29.36 1484.80 1022.508 7.35 7.33 10.473 3.29362 4.64247 29.39 1484.85 1022.534 7.65 7.63 10.476 3.29530 4.64444 29.41 1484.88 1022.546 7.95 7.93 10.476 3.29611 4.64557 29.41 1484.90 1022.553 8.25 8.22 10.476 3.29807 4.64825 29.43 1484.93 1022.569 8.55 8.52 10.473 3.29901 4.65007 29.44 1484.93 1022.581 8.85 8.82 10.471 3.29922 4.65064 29.45 1484.93 1022.585 9.15 9.12 10.470 3.30014 4.65196 29.46 1484.95 1022.594 9.45 9.42 10.473 3.30341 4.65627 29.49 1485.00 1022.618 9.75 9.72 10.476 3.30475 4.65771 29.50 1485.03 1022.627 10.05 10.02 10.478 3.30851 4.66275 29.53 1485.08 1022.656 10.35 10.32 10.479 3.31084 4.66585 29.56 1485.12 1022.674 10.65 10.62 10.482 3.31134 4.66622 29.56 1485.14 1022.677 10.95 10.92 10.486 3.31315 4.66828 29.57 1485.17 1022.689 11.25 11.21 10.487 3.31582 4.67188 29.60 1485.21 1022.710 11.55 11.51 10.488 3.31658 4.67282 29.60 1485.23 1022.716 11.85 11.81 10.490 3.32028 4.67782 29.64 1485.28 1022.745 12.15 12.11 10.491 3.32317 4.68174 29.67 1485.33 1022.768 12.45 12.41 10.493 3.32697 4.68679 29.70 1485.38 1022.796 12.75 12.71 10.494 3.34530 4.71252 29.88 1485.61 1022.938 13.05 13.01 10.493 3.35558 4.72711 29.99 1485.73 1023.019 13.35 13.31 10.495 3.36519 4.74043 30.08 1485.86 1023.093 13.65 13.61 10.495 3.37312 4.75152 30.16 1485.96 1023.155 13.95 13.91 10.494 3.37597 4.75565 30.19 1486.00 1023.179 14.25 14.20 10.494 3.37751 4.75783 30.20 1486.02 1023.192 14.55 14.50 10.495 3.37960 4.76061 30.22 1486.05 1023.209 14.85 14.80 10.497 3.38133 4.76289 30.24 1486.08 1023.222 15.15 15.10 10.498 3.38291 4.76488 30.25 1486.11 1023.234 15.45 15.40 10.499 3.38367 4.76582 30.26 1486.12 1023.241 15.75 15.70 10.502 3.38676 4.76977 30.29 1486.17 1023.263 16.05 16.00 10.500 3.40033 4.78925 30.42 1486.33 1023.372 16.35 16.30 10.498 3.40318 4.79353 30.45 1486.37 1023.397 16.65 16.59 10.498 3.41019 4.80339 30.52 1486.46 1023.452 16.95 16.89 10.497 3.41674 4.81267 30.59 1486.54 1023.504 17.25 17.19 10.498 3.41990 4.81709 30.62 1486.58 1023.530 17.55 17.49 10.492 3.42256 4.82153 30.65 1486.61 1023.556 17.85 17.79 10.485 3.42533 4.82651 30.68 1486.62 1023.585 18.15 18.09 10.479 3.42731 4.83009 30.71 1486.64 1023.606 18.45 18.39 10.475 3.43132 4.83623 30.75 1486.68 1023.641 18.75 18.69 10.474 3.43343 4.83943 30.77 1486.71 1023.660 19.05 18.98 10.471 3.43990 4.84895 30.84 1486.78 1023.714 19.35 19.28 10.466 3.44371 4.85499 30.88 1486.82 1023.749 19.65 19.58 10.463 3.44643 4.85921 30.91 1486.85 1023.774 19.95 19.88 10.461 3.44963 4.86395 30.94 1486.89 1023.801 20.25 20.18 10.459 3.45057 4.86557 30.95 1486.90 1023.811 20.55 20.48 10.457 3.45195 4.86786 30.97 1486.92 1023.826 20.85 20.78 10.451 3.45441 4.87215 31.00 1486.94 1023.851 21.15 21.08 10.449 3.45642 4.87525 31.02 1486.96 1023.869 21.45 21.37 10.448 3.45782 4.87725 31.04 1486.98 1023.882 21.75 21.67 10.446 3.45840 4.87834 31.04 1486.99 1023.889 22.05 21.97 10.445 3.45939 4.87997 31.05 1487.00 1023.899 22.35 22.27 10.443 3.46021 4.88141 31.06 1487.01 1023.909 22.65 22.57 10.441 3.46089 4.88267 31.07 1487.02 1023.917 22.95 22.87 10.439 3.46123 4.88331 31.08 1487.02 1023.922 23.25 23.17 10.438 3.46125 4.88351 31.08 1487.02 1023.924 23.55 23.46 10.438 3.46141 4.88383 31.08 1487.03 1023.927 23.85 23.76 10.438 3.46158 4.88405 31.08 1487.04 1023.930 24.15 24.06 10.435 3.46181 4.88471 31.09 1487.04 1023.935 24.45 24.36 10.433 3.46175 4.88495 31.09 1487.04 1023.938 24.75 24.66 10.431 3.46222 4.88588 31.09 1487.04 1023.944 25.05 24.96 10.429 3.46243 4.88644 31.10 1487.04 1023.949 25.35 25.26 10.426 3.46259 4.88708 31.10 1487.04 1023.954 25.65 25.55 10.423 3.46284 4.88787 31.11 1487.04 1023.960 25.95 25.85 10.422 3.46305 4.88830 31.11 1487.05 1023.963 26.25 26.15 10.422 3.46338 4.88868 31.11 1487.06 1023.967 26.55 26.45 10.424 3.46360 4.88875 31.11 1487.07 1023.968 26.85 26.75 10.423 3.46355 4.88888 31.11 1487.07 1023.970 27.15 27.05 10.422 3.46394 4.88955 31.12 1487.08 1023.975 27.45 27.35 10.422 3.46368 4.88920 31.11 1487.08 1023.975 27.75 27.65 10.422 3.46354 4.88900 31.11 1487.08 1023.975 28.05 27.94 10.421 3.46362 4.88918 31.11 1487.09 1023.977 28.35 28.24 10.419 3.46397 4.88993 31.12 1487.09 1023.983 28.65 28.54 10.420 3.46381 4.88966 31.12 1487.09 1023.982 28.95 28.84 10.421 3.46431 4.89022 31.12 1487.11 1023.987 29.25 29.14 10.422 3.46402 4.88966 31.12 1487.11 1023.985 29.55 29.44 10.422 3.46423 4.88992 31.12 1487.12 1023.987 29.85 29.74 10.422 3.46443 4.89021 31.12 1487.13 1023.990 30.15 30.03 10.422 3.46447 4.89026 31.12 1487.13 1023.992 30.45 30.33 10.418 3.46499 4.89151 31.13 1487.13 1024.000 30.75 30.63 10.415 3.46476 4.89160 31.13 1487.13 1024.002 31.05 30.93 10.418 3.46549 4.89227 31.13 1487.15 1024.007 31.35 31.23 10.418 3.46615 4.89316 31.14 1487.16 1024.013 31.65 31.53 10.406 3.46770 4.89701 31.17 1487.15 1024.036 32.04 31.92 10.405 3.46811 4.89777 31.17 1487.16 1024.042