*2026/01/16 10:37:47.39 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/18 22:05:21.000 END TIME : UTC 2025/02/18 22:05:42.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 110 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.95 2 Depth metres 0.15 32.8 3 Temperature 'deg C (ITS90)' 8.212 8.927 4 Conductivity S/m 3.25113 3.29199 5 Conductance:Specific S/m 4.79715 4.8967 6 Salinity PSS-78 30.28 30.89 7 Speed:Sound m/s 1478.63 1480.41 8 Density kg/m^3 1023.445 1024.15 $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 : 45 LATITUDE : 49 52.08990 N ! (deg min) LONGITUDE : 126 52.57560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250218_220521 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 110 110 MERGEHDR 1.3 2026/01/16 10:35:39 110 110 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 110 110 CALIB 12.1 2026/01/16 10:37:11 110 110 CLEAN 5.3 2026/01/16 10:37:47 110 110 $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 10:37:11 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 8.892 3.26732 4.82014 30.44 1480.21 1023.569 0.45 0.45 8.899 3.25235 4.79715 30.28 1480.04 1023.445 0.75 0.75 8.903 3.26734 4.81865 30.43 1480.25 1023.563 1.05 1.05 8.909 3.26741 4.81797 30.43 1480.27 1023.561 1.35 1.34 8.917 3.26912 4.81931 30.44 1480.32 1023.569 1.65 1.64 8.917 3.26849 4.81831 30.43 1480.31 1023.565 1.95 1.94 8.919 3.27026 4.82074 30.45 1480.34 1023.579 2.25 2.24 8.927 3.27141 4.82130 30.46 1480.38 1023.583 2.55 2.54 8.921 3.27126 4.82192 30.46 1480.37 1023.588 2.85 2.84 8.916 3.27132 4.82263 30.46 1480.37 1023.593 3.15 3.14 8.917 3.27180 4.82325 30.47 1480.38 1023.598 3.45 3.44 8.915 3.27173 4.82336 30.47 1480.38 1023.600 3.75 3.73 8.914 3.27384 4.82667 30.49 1480.41 1023.619 4.05 4.03 8.906 3.27569 4.83061 30.52 1480.41 1023.643 4.35 4.33 8.906 3.27195 4.82510 30.48 1480.37 1023.614 4.65 4.63 8.911 3.27221 4.82473 30.48 1480.39 1023.613 4.95 4.93 8.905 3.27207 4.82533 30.48 1480.38 1023.618 5.25 5.23 8.901 3.27137 4.82485 30.48 1480.36 1023.616 5.55 5.53 8.894 3.27234 4.82728 30.49 1480.36 1023.631 5.85 5.83 8.890 3.27264 4.82840 30.50 1480.36 1023.639 6.15 6.12 8.881 3.27266 4.82960 30.51 1480.34 1023.647 6.45 6.42 8.871 3.27222 4.83047 30.51 1480.31 1023.653 6.75 6.72 8.851 3.27185 4.83266 30.52 1480.26 1023.667 7.05 7.02 8.846 3.27253 4.83442 30.53 1480.26 1023.679 7.35 7.32 8.840 3.27439 4.83807 30.56 1480.27 1023.700 7.65 7.62 8.825 3.27726 4.84437 30.60 1480.27 1023.736 7.95 7.92 8.812 3.27971 4.84993 30.64 1480.27 1023.769 8.25 8.22 8.799 3.28382 4.85780 30.69 1480.30 1023.814 8.55 8.51 8.786 3.28833 4.86642 30.75 1480.32 1023.863 8.85 8.81 8.763 3.29079 4.87339 30.79 1480.30 1023.903 9.15 9.11 8.728 3.29199 4.88013 30.84 1480.22 1023.942 9.45 9.41 8.711 3.28988 4.87957 30.83 1480.15 1023.941 9.75 9.71 8.703 3.28902 4.87935 30.83 1480.13 1023.942 10.05 10.01 8.698 3.28595 4.87565 30.80 1480.08 1023.923 10.35 10.31 8.680 3.28504 4.87677 30.81 1480.03 1023.931 10.65 10.60 8.662 3.28469 4.87896 30.82 1479.98 1023.945 10.95 10.90 8.646 3.28436 4.88075 30.83 1479.93 1023.956 11.25 11.20 8.624 3.28653 4.88722 30.87 1479.91 1023.994 11.55 11.50 8.599 3.28603 4.89014 30.89 1479.84 1024.012 11.85 11.80 8.580 3.28186 4.88665 30.86 1479.74 1023.995 12.15 12.10 8.572 3.27954 4.88427 30.84 1479.69 1023.983 12.45 12.40 8.562 3.27575 4.88019 30.81 1479.62 1023.963 12.75 12.69 8.545 3.27287 4.87826 30.80 1479.54 1023.954 13.05 12.99 8.525 3.27227 4.88027 30.81 1479.49 1023.967 13.35 13.29 8.497 3.27139 4.88308 30.82 1479.41 1023.984 13.65 13.59 8.494 3.27042 4.88203 30.81 1479.39 1023.980 13.95 13.89 8.476 3.27159 4.88643 30.84 1479.36 1024.006 14.25 14.19 8.431 3.26804 4.88769 30.84 1479.20 1024.016 14.55 14.49 8.421 3.26595 4.88605 30.83 1479.15 1024.008 14.85 14.79 8.416 3.26539 4.88595 30.83 1479.13 1024.009 15.15 15.08 8.412 3.26491 4.88582 30.83 1479.12 1024.010 15.45 15.38 8.403 3.26390 4.88563 30.82 1479.09 1024.010 15.75 15.68 8.396 3.26400 4.88676 30.83 1479.08 1024.018 16.05 15.98 8.391 3.26373 4.88711 30.83 1479.06 1024.021 16.35 16.28 8.387 3.26353 4.88737 30.83 1479.05 1024.024 16.65 16.58 8.364 3.26116 4.88728 30.83 1478.97 1024.026 16.95 16.88 8.311 3.25838 4.89078 30.85 1478.79 1024.047 17.25 17.17 8.296 3.25722 4.89129 30.85 1478.74 1024.052 17.55 17.47 8.286 3.25651 4.89166 30.85 1478.71 1024.055 17.85 17.77 8.281 3.25666 4.89269 30.85 1478.70 1024.062 18.15 18.07 8.284 3.25671 4.89227 30.85 1478.72 1024.061 18.45 18.37 8.283 3.25650 4.89221 30.85 1478.71 1024.062 18.75 18.67 8.274 3.25586 4.89251 30.85 1478.69 1024.065 19.05 18.97 8.270 3.25556 4.89266 30.85 1478.68 1024.068 19.35 19.26 8.267 3.25479 4.89187 30.85 1478.66 1024.065 19.65 19.56 8.262 3.25519 4.89326 30.86 1478.66 1024.074 19.95 19.86 8.261 3.25463 4.89260 30.85 1478.65 1024.071 20.25 20.16 8.260 3.25527 4.89372 30.86 1478.66 1024.079 20.55 20.46 8.258 3.25458 4.89285 30.85 1478.66 1024.075 20.85 20.76 8.257 3.25431 4.89261 30.85 1478.66 1024.075 21.15 21.06 8.258 3.25443 4.89277 30.85 1478.66 1024.078 21.45 21.35 8.256 3.25463 4.89324 30.85 1478.67 1024.081 21.75 21.65 8.256 3.25441 4.89297 30.85 1478.67 1024.081 22.05 21.95 8.256 3.25465 4.89330 30.85 1478.68 1024.084 22.35 22.25 8.256 3.25438 4.89290 30.85 1478.68 1024.083 22.65 22.55 8.255 3.25438 4.89305 30.85 1478.68 1024.085 22.95 22.85 8.253 3.25421 4.89314 30.85 1478.67 1024.087 23.25 23.15 8.250 3.25405 4.89328 30.85 1478.67 1024.089 23.55 23.45 8.249 3.25403 4.89338 30.85 1478.67 1024.091 23.85 23.74 8.247 3.25398 4.89368 30.85 1478.67 1024.094 24.15 24.04 8.243 3.25363 4.89368 30.85 1478.66 1024.096 24.45 24.34 8.240 3.25412 4.89483 30.86 1478.66 1024.103 24.75 24.64 8.236 3.25349 4.89447 30.86 1478.65 1024.103 25.05 24.94 8.232 3.25329 4.89482 30.86 1478.64 1024.106 25.35 25.24 8.230 3.25277 4.89435 30.86 1478.63 1024.105 25.65 25.54 8.228 3.25335 4.89553 30.86 1478.64 1024.113 25.95 25.83 8.226 3.25304 4.89526 30.86 1478.64 1024.112 26.25 26.13 8.225 3.25257 4.89473 30.86 1478.63 1024.111 26.55 26.43 8.225 3.25268 4.89495 30.86 1478.64 1024.113 26.85 26.73 8.226 3.25260 4.89473 30.86 1478.64 1024.113 27.15 27.03 8.224 3.25253 4.89485 30.86 1478.64 1024.115 27.45 27.33 8.223 3.25298 4.89566 30.86 1478.65 1024.121 27.75 27.63 8.221 3.25231 4.89494 30.86 1478.64 1024.118 28.05 27.92 8.219 3.25225 4.89517 30.86 1478.64 1024.121 28.35 28.22 8.218 3.25203 4.89505 30.86 1478.64 1024.122 28.65 28.52 8.216 3.25254 4.89599 30.86 1478.64 1024.128 28.95 28.82 8.217 3.25209 4.89528 30.86 1478.64 1024.125 29.25 29.12 8.216 3.25228 4.89564 30.86 1478.65 1024.129 29.55 29.42 8.219 3.25190 4.89470 30.85 1478.66 1024.125 29.85 29.72 8.220 3.25185 4.89444 30.85 1478.66 1024.125 30.15 30.01 8.219 3.25113 4.89345 30.85 1478.66 1024.120 30.45 30.31 8.217 3.25192 4.89493 30.86 1478.67 1024.130 30.75 30.61 8.216 3.25220 4.89560 30.86 1478.67 1024.135 31.05 30.91 8.216 3.25163 4.89467 30.85 1478.67 1024.131 31.35 31.21 8.215 3.25209 4.89551 30.86 1478.68 1024.137 31.65 31.51 8.215 3.25216 4.89560 30.86 1478.68 1024.139 31.95 31.81 8.214 3.25226 4.89597 30.86 1478.69 1024.142 32.25 32.10 8.212 3.25236 4.89640 30.86 1478.69 1024.146 32.55 32.40 8.212 3.25242 4.89650 30.86 1478.69 1024.147 32.95 32.80 8.212 3.25259 4.89670 30.87 1478.70 1024.150