*2026/01/16 09:57:50.19 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/26 17:50:56.000 END TIME : UTC 2024/04/26 17:51:22.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.26 2 Depth metres 0.15 40.13 3 Temperature 'deg C (ITS90)' 10.145 11.708 4 Conductivity S/m 2.93975 3.36046 5 Conductance:Specific S/m 4.00422 4.75814 6 Salinity PSS-78 25.07 30.17 7 Speed:Sound m/s 1483.93 1486.52 8 Density kg/m^3 1018.942 1023.318 $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 : 2024-087 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 : 49 21.67950 N ! (deg min) LONGITUDE : 126 4.76720 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240426_175056 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:58 135 135 MERGEHDR 1.3 2026/01/16 09:53:51 135 135 HDREDIT2 3.2 2026/01/16 09:55:04 ? ? REMOVECH 8.2 2026/01/16 09:56:16 135 135 CALIB 12.1 2026/01/16 09:56:49 135 135 CLEAN 5.3 2026/01/16 09:57:50 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:04 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 09:56:16 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:49 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 09:57:46 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 11.708 2.93975 4.00422 25.07 1483.96 1018.942 0.45 0.45 11.664 2.99096 4.07888 25.58 1484.42 1019.348 0.75 0.75 11.524 3.01364 4.12554 25.89 1484.30 1019.614 1.05 1.05 11.484 3.03660 4.16157 26.14 1484.46 1019.812 1.35 1.35 11.477 3.04782 4.17772 26.25 1484.57 1019.901 1.65 1.65 11.478 3.06193 4.19697 26.38 1484.74 1020.006 1.95 1.95 11.492 3.12063 4.27575 26.93 1485.45 1020.430 2.25 2.25 11.497 3.20489 4.39059 27.73 1486.43 1021.052 2.55 2.55 11.452 3.22307 4.42098 27.94 1486.52 1021.222 2.85 2.85 11.414 3.22482 4.42797 27.99 1486.45 1021.265 3.15 3.15 11.350 3.24512 4.46368 28.23 1486.52 1021.467 3.45 3.45 11.282 3.24926 4.47774 28.32 1486.39 1021.551 3.75 3.75 11.226 3.25085 4.48692 28.38 1486.27 1021.607 4.05 4.05 11.176 3.25236 4.49519 28.43 1486.16 1021.658 4.35 4.34 11.142 3.25408 4.50176 28.48 1486.10 1021.698 4.65 4.64 11.093 3.25321 4.50673 28.51 1485.96 1021.731 4.95 4.94 11.056 3.25346 4.51170 28.54 1485.87 1021.763 5.25 5.24 11.029 3.25494 4.51709 28.57 1485.82 1021.796 5.55 5.54 10.989 3.25533 4.52270 28.61 1485.73 1021.831 5.85 5.84 10.942 3.25576 4.52922 28.65 1485.61 1021.872 6.15 6.14 10.911 3.25622 4.53369 28.68 1485.54 1021.900 6.45 6.44 10.880 3.25506 4.53608 28.69 1485.45 1021.917 6.75 6.74 10.863 3.25528 4.53850 28.71 1485.41 1021.933 7.05 7.04 10.840 3.25524 4.54130 28.72 1485.36 1021.952 7.35 7.34 10.782 3.25465 4.54793 28.76 1485.20 1021.994 7.65 7.64 10.767 3.25504 4.55034 28.78 1485.17 1022.010 7.95 7.94 10.730 3.25489 4.55486 28.81 1485.08 1022.039 8.25 8.24 10.710 3.25517 4.55779 28.82 1485.03 1022.057 8.55 8.53 10.680 3.25565 4.56227 28.85 1484.96 1022.086 8.85 8.83 10.655 3.25593 4.56582 28.87 1484.91 1022.108 9.15 9.13 10.633 3.25590 4.56865 28.89 1484.85 1022.127 9.45 9.43 10.606 3.25648 4.57288 28.92 1484.79 1022.153 9.75 9.73 10.573 3.25618 4.57673 28.94 1484.71 1022.178 10.05 10.03 10.527 3.25640 4.58296 28.98 1484.59 1022.217 10.35 10.33 10.492 3.25723 4.58873 29.02 1484.51 1022.253 10.65 10.63 10.461 3.25787 4.59360 29.05 1484.44 1022.283 10.95 10.93 10.433 3.25847 4.59806 29.07 1484.38 1022.310 11.25 11.23 10.391 3.25901 4.60431 29.11 1484.28 1022.349 11.55 11.53 10.364 3.25976 4.60891 29.14 1484.22 1022.377 11.85 11.82 10.332 3.26011 4.61354 29.17 1484.15 1022.406 12.15 12.12 10.313 3.26069 4.61685 29.19 1484.11 1022.427 12.45 12.42 10.297 3.26084 4.61913 29.21 1484.07 1022.442 12.75 12.72 10.286 3.26117 4.62104 29.22 1484.05 1022.454 13.05 13.02 10.273 3.26232 4.62435 29.24 1484.04 1022.475 13.35 13.32 10.267 3.26289 4.62603 29.25 1484.03 1022.486 13.65 13.62 10.259 3.26338 4.62769 29.26 1484.02 1022.496 13.95 13.92 10.258 3.26397 4.62871 29.27 1484.03 1022.503 14.25 14.22 10.254 3.26411 4.62942 29.27 1484.03 1022.509 14.55 14.52 10.247 3.26494 4.63154 29.29 1484.02 1022.522 14.85 14.82 10.242 3.26510 4.63237 29.29 1484.02 1022.528 15.15 15.11 10.243 3.26566 4.63301 29.30 1484.03 1022.533 15.45 15.41 10.240 3.26538 4.63304 29.30 1484.03 1022.535 15.75 15.71 10.232 3.26545 4.63419 29.30 1484.01 1022.543 16.05 16.01 10.229 3.26535 4.63450 29.30 1484.00 1022.546 16.35 16.31 10.220 3.26615 4.63679 29.32 1484.00 1022.560 16.65 16.61 10.212 3.26618 4.63792 29.33 1483.98 1022.568 16.95 16.91 10.201 3.26595 4.63899 29.33 1483.95 1022.576 17.25 17.21 10.189 3.26732 4.64256 29.36 1483.94 1022.598 17.55 17.51 10.177 3.26922 4.64686 29.38 1483.94 1022.624 17.85 17.81 10.167 3.27149 4.65133 29.42 1483.94 1022.650 18.15 18.11 10.160 3.27207 4.65317 29.43 1483.94 1022.662 18.45 18.40 10.154 3.27321 4.65556 29.44 1483.94 1022.676 18.75 18.70 10.148 3.27383 4.65725 29.45 1483.93 1022.687 19.05 19.00 10.145 3.27475 4.65885 29.46 1483.94 1022.698 19.35 19.30 10.147 3.27746 4.66247 29.49 1483.99 1022.718 19.65 19.60 10.150 3.28584 4.67400 29.57 1484.10 1022.782 19.95 19.90 10.161 3.29058 4.67927 29.61 1484.19 1022.812 20.25 20.20 10.167 3.29342 4.68253 29.63 1484.25 1022.830 20.55 20.50 10.168 3.29570 4.68558 29.65 1484.28 1022.848 20.85 20.80 10.166 3.29655 4.68713 29.66 1484.29 1022.858 21.15 21.10 10.167 3.29855 4.68988 29.68 1484.32 1022.874 21.45 21.39 10.167 3.29895 4.69042 29.69 1484.33 1022.878 21.75 21.69 10.168 3.30212 4.69475 29.72 1484.38 1022.903 22.05 21.99 10.170 3.30431 4.69760 29.74 1484.41 1022.920 22.35 22.29 10.173 3.30580 4.69938 29.75 1484.44 1022.931 22.65 22.59 10.186 3.30660 4.69875 29.75 1484.49 1022.928 22.95 22.89 10.185 3.30962 4.70313 29.78 1484.53 1022.953 23.25 23.19 10.196 3.31623 4.71104 29.83 1484.65 1022.997 23.55 23.49 10.241 3.32172 4.71287 29.85 1484.84 1023.005 23.85 23.79 10.270 3.32590 4.71496 29.87 1484.97 1023.015 24.15 24.09 10.285 3.32994 4.71860 29.90 1485.06 1023.035 24.45 24.38 10.304 3.33225 4.71937 29.91 1485.14 1023.039 24.75 24.68 10.318 3.33577 4.72250 29.93 1485.23 1023.057 25.05 24.98 10.327 3.33635 4.72209 29.93 1485.26 1023.055 25.35 25.28 10.335 3.33642 4.72116 29.92 1485.29 1023.051 25.65 25.58 10.334 3.33615 4.72085 29.92 1485.29 1023.050 25.95 25.88 10.334 3.33665 4.72163 29.92 1485.30 1023.056 26.25 26.18 10.333 3.33673 4.72182 29.93 1485.30 1023.058 26.55 26.48 10.336 3.33664 4.72134 29.92 1485.31 1023.057 26.85 26.78 10.332 3.33722 4.72265 29.93 1485.31 1023.065 27.15 27.07 10.334 3.33701 4.72209 29.93 1485.32 1023.063 27.45 27.37 10.335 3.33727 4.72229 29.93 1485.33 1023.066 27.75 27.67 10.335 3.33771 4.72301 29.93 1485.34 1023.071 28.05 27.97 10.331 3.33735 4.72303 29.93 1485.33 1023.073 28.35 28.27 10.331 3.33775 4.72359 29.94 1485.34 1023.077 28.65 28.57 10.333 3.33725 4.72260 29.93 1485.34 1023.073 28.95 28.87 10.333 3.33749 4.72288 29.93 1485.35 1023.076 29.25 29.17 10.334 3.33771 4.72303 29.93 1485.36 1023.078 29.55 29.47 10.337 3.33879 4.72416 29.94 1485.39 1023.085 29.85 29.76 10.343 3.33895 4.72360 29.94 1485.41 1023.083 30.15 30.06 10.345 3.34217 4.72796 29.97 1485.46 1023.107 30.45 30.36 10.349 3.34467 4.73093 29.99 1485.50 1023.125 30.75 30.66 10.352 3.34731 4.73420 30.01 1485.55 1023.144 31.05 30.96 10.353 3.34962 4.73741 30.03 1485.58 1023.162 31.35 31.26 10.348 3.35073 4.73963 30.05 1485.59 1023.176 31.65 31.56 10.342 3.35098 4.74076 30.06 1485.58 1023.184 31.95 31.86 10.339 3.35139 4.74179 30.06 1485.58 1023.191 32.25 32.16 10.338 3.35137 4.74183 30.06 1485.59 1023.193 32.55 32.45 10.335 3.35189 4.74298 30.07 1485.59 1023.201 32.85 32.75 10.337 3.35245 4.74360 30.08 1485.60 1023.205 33.15 33.05 10.330 3.35220 4.74410 30.08 1485.59 1023.210 33.45 33.35 10.328 3.35179 4.74388 30.08 1485.58 1023.210 33.75 33.65 10.326 3.35143 4.74352 30.07 1485.58 1023.209 34.05 33.95 10.326 3.35226 4.74472 30.08 1485.59 1023.217 34.35 34.25 10.330 3.35271 4.74486 30.08 1485.61 1023.219 34.65 34.55 10.336 3.35442 4.74653 30.10 1485.65 1023.229 34.95 34.85 10.332 3.35621 4.74957 30.12 1485.67 1023.247 35.25 35.14 10.329 3.35703 4.75111 30.13 1485.68 1023.257 35.55 35.44 10.331 3.35751 4.75148 30.13 1485.69 1023.260 35.85 35.74 10.331 3.35758 4.75158 30.13 1485.70 1023.262 36.15 36.04 10.330 3.35864 4.75330 30.14 1485.71 1023.273 36.45 36.34 10.331 3.35859 4.75310 30.14 1485.72 1023.273 36.75 36.64 10.330 3.35877 4.75337 30.14 1485.73 1023.276 37.05 36.94 10.333 3.35976 4.75437 30.15 1485.75 1023.282 37.35 37.24 10.332 3.35923 4.75377 30.14 1485.75 1023.280 37.65 37.54 10.330 3.35884 4.75359 30.14 1485.74 1023.281 37.95 37.83 10.328 3.35867 4.75357 30.14 1485.74 1023.282 38.25 38.13 10.322 3.35942 4.75541 30.15 1485.74 1023.294 38.55 38.43 10.324 3.35877 4.75428 30.15 1485.74 1023.289 38.85 38.73 10.322 3.35920 4.75511 30.15 1485.74 1023.295 39.15 39.03 10.317 3.35913 4.75571 30.16 1485.73 1023.299 39.45 39.33 10.313 3.35985 4.75722 30.17 1485.74 1023.309 39.75 39.63 10.314 3.36011 4.75748 30.17 1485.75 1023.312 40.05 39.93 10.313 3.36016 4.75768 30.17 1485.75 1023.314 40.26 40.13 10.313 3.36046 4.75814 30.17 1485.76 1023.318