*2026/01/16 09:47:05.39 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/19 18:02:46.000 END TIME : UTC 2023/12/19 18:03:09.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 117 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.08 2 Depth metres 0.15 34.94 3 Temperature 'deg C (ITS90)' 9.943 10.418 4 Conductivity S/m 2.95822 3.46482 5 Conductance:Specific S/m 4.23296 4.90652 6 Salinity PSS-78 26.49 31.22 7 Speed:Sound m/s 1479.29 1486.94 8 Density kg/m^3 1020.325 1024.109 $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 : 102 LATITUDE : 50 27.85880 N ! (deg min) LONGITUDE : 127 53.61680 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231219_180246 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 117 117 MERGEHDR 1.3 2026/01/15 13:41:48 117 117 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 117 117 CALIB 12.1 2026/01/16 09:46:10 117 117 CLEAN 5.3 2026/01/16 09:47:05 117 117 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 9.943 2.95822 4.23296 26.49 1479.29 1020.325 0.45 0.45 10.145 3.11612 4.43322 27.90 1481.74 1021.392 0.75 0.75 10.244 3.22366 4.57329 28.88 1483.30 1022.146 1.05 1.05 10.253 3.22627 4.57583 28.90 1483.36 1022.161 1.35 1.35 10.265 3.23077 4.58075 28.94 1483.45 1022.188 1.65 1.65 10.275 3.23292 4.58244 28.95 1483.51 1022.198 1.95 1.95 10.280 3.23393 4.58329 28.96 1483.54 1022.203 2.25 2.24 10.286 3.23473 4.58365 28.96 1483.57 1022.206 2.55 2.54 10.292 3.23822 4.58772 28.99 1483.63 1022.229 2.85 2.84 10.288 3.23796 4.58788 28.99 1483.62 1022.232 3.15 3.14 10.286 3.23871 4.58928 29.00 1483.63 1022.241 3.45 3.44 10.295 3.24109 4.59139 29.02 1483.69 1022.253 3.75 3.74 10.309 3.24631 4.59705 29.06 1483.79 1022.284 4.05 4.04 10.315 3.25641 4.61053 29.15 1483.93 1022.358 4.35 4.34 10.324 3.25768 4.61110 29.16 1483.98 1022.362 4.65 4.64 10.328 3.25826 4.61145 29.16 1484.00 1022.365 4.95 4.94 10.332 3.25848 4.61124 29.16 1484.02 1022.364 5.25 5.24 10.330 3.25972 4.61327 29.17 1484.03 1022.377 5.55 5.53 10.330 3.26071 4.61468 29.18 1484.05 1022.386 5.85 5.83 10.337 3.26147 4.61485 29.18 1484.08 1022.388 6.15 6.13 10.339 3.26225 4.61568 29.19 1484.10 1022.393 6.45 6.43 10.339 3.26355 4.61745 29.20 1484.12 1022.404 6.75 6.73 10.340 3.26446 4.61864 29.21 1484.14 1022.412 7.05 7.03 10.342 3.26678 4.62170 29.23 1484.18 1022.430 7.35 7.33 10.345 3.26873 4.62406 29.25 1484.21 1022.444 7.65 7.63 10.348 3.27183 4.62805 29.28 1484.26 1022.466 7.95 7.93 10.350 3.27355 4.63022 29.29 1484.29 1022.479 8.25 8.23 10.350 3.27496 4.63222 29.31 1484.32 1022.491 8.55 8.53 10.353 3.27705 4.63477 29.32 1484.35 1022.506 8.85 8.82 10.358 3.28307 4.64267 29.38 1484.44 1022.550 9.15 9.12 10.361 3.28611 4.64652 29.41 1484.49 1022.572 9.45 9.42 10.364 3.28672 4.64696 29.41 1484.51 1022.576 9.75 9.72 10.365 3.28700 4.64728 29.41 1484.52 1022.579 10.05 10.02 10.367 3.28891 4.64971 29.43 1484.56 1022.593 10.35 10.32 10.378 3.29454 4.65616 29.48 1484.66 1022.629 10.65 10.62 10.396 3.30429 4.66756 29.56 1484.83 1022.691 10.95 10.92 10.411 3.31134 4.67558 29.62 1484.96 1022.735 11.25 11.22 10.411 3.31749 4.68422 29.68 1485.04 1022.783 11.55 11.52 10.416 3.32509 4.69430 29.75 1485.14 1022.839 11.85 11.81 10.418 3.32968 4.70055 29.79 1485.21 1022.875 12.15 12.11 10.415 3.33296 4.70561 29.83 1485.24 1022.904 12.45 12.41 10.417 3.33357 4.70618 29.83 1485.26 1022.908 12.75 12.71 10.415 3.33627 4.71032 29.86 1485.29 1022.932 13.05 13.01 10.410 3.33740 4.71257 29.87 1485.30 1022.946 13.35 13.31 10.411 3.33939 4.71525 29.89 1485.33 1022.962 13.65 13.61 10.409 3.34353 4.72124 29.93 1485.38 1022.996 13.95 13.91 10.406 3.34438 4.72291 29.95 1485.39 1023.007 14.25 14.21 10.399 3.34556 4.72549 29.96 1485.39 1023.023 14.55 14.50 10.396 3.34833 4.72976 29.99 1485.42 1023.047 14.85 14.80 10.396 3.34953 4.73148 30.00 1485.44 1023.058 15.15 15.10 10.390 3.35307 4.73730 30.04 1485.47 1023.092 15.45 15.40 10.379 3.35859 4.74653 30.11 1485.51 1023.144 15.75 15.70 10.372 3.36314 4.75400 30.16 1485.55 1023.187 16.05 16.00 10.369 3.36723 4.76016 30.20 1485.60 1023.222 16.35 16.30 10.361 3.37057 4.76588 30.24 1485.62 1023.255 16.65 16.60 10.356 3.37516 4.77307 30.29 1485.67 1023.296 16.95 16.90 10.355 3.38227 4.78326 30.36 1485.76 1023.354 17.25 17.19 10.342 3.38904 4.79470 30.44 1485.81 1023.419 17.55 17.49 10.324 3.39690 4.80825 30.54 1485.86 1023.495 17.85 17.79 10.310 3.40431 4.82063 30.62 1485.92 1023.566 18.15 18.09 10.292 3.41115 4.83277 30.70 1485.96 1023.635 18.45 18.39 10.278 3.41317 4.83748 30.74 1485.96 1023.663 18.75 18.69 10.276 3.41710 4.84335 30.78 1486.00 1023.696 19.05 18.99 10.282 3.41947 4.84598 30.80 1486.05 1023.712 19.35 19.29 10.286 3.42239 4.84949 30.82 1486.10 1023.732 19.65 19.58 10.284 3.42412 4.85222 30.84 1486.12 1023.748 19.95 19.88 10.293 3.42629 4.85412 30.85 1486.18 1023.760 20.25 20.18 10.298 3.42782 4.85553 30.86 1486.21 1023.768 20.55 20.48 10.314 3.43146 4.85843 30.89 1486.30 1023.784 20.85 20.78 10.319 3.43556 4.86365 30.92 1486.37 1023.814 21.15 21.08 10.320 3.43682 4.86525 30.94 1486.39 1023.824 21.45 21.38 10.320 3.43764 4.86637 30.94 1486.41 1023.831 21.75 21.67 10.316 3.43931 4.86933 30.96 1486.42 1023.849 22.05 21.97 10.312 3.43945 4.87011 30.97 1486.42 1023.855 22.35 22.27 10.301 3.43997 4.87228 30.98 1486.40 1023.869 22.65 22.57 10.287 3.44060 4.87517 31.00 1486.38 1023.887 22.95 22.87 10.287 3.44074 4.87534 31.00 1486.38 1023.889 23.25 23.17 10.286 3.44114 4.87609 31.01 1486.39 1023.895 23.55 23.47 10.286 3.44108 4.87601 31.01 1486.39 1023.896 23.85 23.77 10.284 3.44101 4.87620 31.01 1486.39 1023.898 24.15 24.06 10.283 3.44121 4.87655 31.01 1486.40 1023.901 24.45 24.36 10.278 3.44103 4.87701 31.01 1486.39 1023.905 24.75 24.66 10.277 3.44183 4.87829 31.02 1486.40 1023.914 25.05 24.96 10.280 3.44199 4.87809 31.02 1486.41 1023.914 25.35 25.26 10.283 3.44205 4.87778 31.02 1486.43 1023.913 25.65 25.56 10.284 3.44394 4.88026 31.03 1486.46 1023.928 25.95 25.86 10.287 3.44431 4.88038 31.04 1486.48 1023.930 26.25 26.15 10.291 3.44478 4.88059 31.04 1486.49 1023.932 26.55 26.45 10.283 3.44484 4.88173 31.04 1486.48 1023.940 26.85 26.75 10.280 3.44447 4.88160 31.04 1486.47 1023.941 27.15 27.05 10.291 3.44924 4.88691 31.08 1486.56 1023.970 27.45 27.35 10.290 3.44902 4.88672 31.08 1486.56 1023.971 27.75 27.65 10.285 3.44881 4.88701 31.08 1486.55 1023.974 28.05 27.95 10.288 3.44992 4.88830 31.09 1486.58 1023.982 28.35 28.24 10.285 3.45315 4.89317 31.12 1486.62 1024.010 28.65 28.54 10.282 3.45427 4.89517 31.14 1486.63 1024.023 28.95 28.84 10.287 3.45493 4.89550 31.14 1486.65 1024.025 29.25 29.14 10.292 3.45625 4.89662 31.15 1486.69 1024.032 29.55 29.44 10.292 3.45579 4.89605 31.15 1486.68 1024.031 29.85 29.74 10.293 3.45566 4.89571 31.14 1486.69 1024.030 30.15 30.04 10.296 3.45604 4.89578 31.14 1486.71 1024.031 30.45 30.33 10.301 3.45670 4.89611 31.15 1486.73 1024.034 30.75 30.63 10.299 3.45634 4.89587 31.14 1486.73 1024.034 31.05 30.93 10.288 3.45560 4.89621 31.15 1486.70 1024.038 31.35 31.23 10.287 3.45595 4.89686 31.15 1486.70 1024.043 31.65 31.53 10.291 3.45624 4.89681 31.15 1486.72 1024.044 31.95 31.83 10.293 3.45677 4.89728 31.15 1486.74 1024.047 32.25 32.13 10.296 3.45639 4.89636 31.15 1486.74 1024.043 32.55 32.42 10.293 3.45610 4.89628 31.15 1486.74 1024.044 32.85 32.72 10.290 3.45628 4.89699 31.15 1486.74 1024.050 33.15 33.02 10.296 3.45641 4.89627 31.15 1486.76 1024.047 33.45 33.32 10.296 3.45626 4.89609 31.14 1486.76 1024.047 33.75 33.62 10.297 3.45784 4.89824 31.16 1486.79 1024.060 34.05 33.92 10.298 3.46084 4.90231 31.19 1486.83 1024.083 34.35 34.22 10.308 3.46378 4.90503 31.21 1486.90 1024.099 34.65 34.52 10.308 3.46479 4.90652 31.22 1486.92 1024.109 35.08 34.94 10.315 3.46482 4.90556 31.21 1486.94 1024.104