*2026/01/16 10:37:51.12 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 17:46:05.000 END TIME : UTC 2025/04/09 17:46:23.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 92 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.46 2 Depth metres 0.15 27.41 3 Temperature 'deg C (ITS90)' 8.554 9.389 4 Conductivity S/m 0.61519 3.12266 5 Conductance:Specific S/m 0.91673 4.59999 6 Salinity PSS-78 5.02 28.9 7 Speed:Sound m/s 1447.72 1479.59 8 Density kg/m^3 1003.76 1022.484 $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 : 98 LATITUDE : 49 38.10350 N ! (deg min) LONGITUDE : 126 21.56730 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_174605 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 92 92 MERGEHDR 1.3 2026/01/16 10:35:41 92 92 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 92 92 CALIB 12.1 2026/01/16 10:37:14 92 92 CLEAN 5.3 2026/01/16 10:37:51 92 92 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:12 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 8.554 0.61519 0.91673 5.02 1447.72 1003.760 0.45 0.46 8.584 0.66878 0.99568 5.48 1448.42 1004.123 0.75 0.76 8.804 1.00624 1.48834 8.45 1452.97 1006.425 1.05 1.06 9.213 1.76132 2.57407 15.32 1462.98 1011.736 1.35 1.37 9.331 2.49041 3.62705 22.29 1471.93 1017.152 1.65 1.67 9.300 2.66583 3.88608 24.05 1473.94 1018.523 1.95 1.97 9.292 2.85682 4.16548 25.95 1476.24 1020.013 2.25 2.27 9.305 2.95544 4.30762 26.93 1477.49 1020.777 2.55 2.57 9.311 2.98443 4.34908 27.22 1477.87 1021.001 2.85 2.86 9.324 2.99967 4.36963 27.36 1478.10 1021.112 3.15 3.16 9.334 3.00724 4.37939 27.43 1478.22 1021.166 3.45 3.46 9.339 3.01161 4.38516 27.47 1478.30 1021.198 3.75 3.76 9.339 3.01252 4.38638 27.48 1478.31 1021.206 4.05 4.06 9.343 3.01646 4.39164 27.52 1478.38 1021.235 4.35 4.36 9.354 3.02348 4.40045 27.58 1478.50 1021.283 4.65 4.66 9.361 3.03400 4.41490 27.68 1478.65 1021.362 4.95 4.96 9.352 3.04054 4.42554 27.75 1478.71 1021.422 5.25 5.26 9.362 3.04399 4.42931 27.78 1478.79 1021.443 5.55 5.56 9.382 3.06588 4.45857 27.99 1479.12 1021.601 5.85 5.86 9.389 3.07410 4.46964 28.06 1479.24 1021.662 6.15 6.16 9.379 3.07210 4.46801 28.05 1479.19 1021.655 6.45 6.46 9.364 3.07161 4.46919 28.06 1479.15 1021.663 6.75 6.76 9.347 3.07150 4.47121 28.07 1479.11 1021.677 7.05 7.06 9.344 3.07310 4.47394 28.09 1479.13 1021.693 7.35 7.36 9.341 3.07529 4.47762 28.11 1479.15 1021.714 7.65 7.65 9.338 3.07730 4.48092 28.13 1479.17 1021.733 7.95 7.95 9.342 3.07927 4.48321 28.15 1479.21 1021.747 8.25 8.25 9.351 3.08179 4.48569 28.17 1479.27 1021.761 8.55 8.55 9.358 3.08608 4.49103 28.21 1479.35 1021.791 8.85 8.85 9.362 3.08725 4.49223 28.22 1479.38 1021.798 9.15 9.15 9.373 3.09053 4.49559 28.24 1479.45 1021.817 9.45 9.45 9.375 3.09240 4.49798 28.26 1479.49 1021.831 9.75 9.75 9.376 3.09506 4.50183 28.28 1479.52 1021.854 10.05 10.05 9.362 3.09484 4.50324 28.29 1479.49 1021.863 10.35 10.35 9.345 3.09312 4.50303 28.29 1479.43 1021.864 10.65 10.65 9.324 3.09144 4.50332 28.29 1479.35 1021.868 10.95 10.95 9.297 3.08951 4.50410 28.29 1479.26 1021.875 11.25 11.25 9.263 3.08736 4.50536 28.29 1479.14 1021.885 11.55 11.55 9.240 3.09272 4.51619 28.37 1479.15 1021.946 11.85 11.84 9.227 3.09485 4.52113 28.40 1479.14 1021.975 12.15 12.14 9.229 3.09597 4.52245 28.41 1479.17 1021.984 12.45 12.44 9.235 3.10097 4.52889 28.45 1479.25 1022.019 12.75 12.74 9.250 3.10799 4.53718 28.51 1479.39 1022.065 13.05 13.04 9.262 3.11016 4.53885 28.52 1479.45 1022.075 13.35 13.34 9.268 3.11148 4.53996 28.53 1479.49 1022.081 13.65 13.64 9.269 3.11277 4.54163 28.54 1479.51 1022.092 13.95 13.94 9.273 3.11299 4.54151 28.54 1479.53 1022.092 14.25 14.24 9.273 3.11340 4.54199 28.55 1479.54 1022.096 14.55 14.54 9.271 3.11376 4.54288 28.55 1479.54 1022.102 14.85 14.84 9.266 3.11424 4.54427 28.56 1479.54 1022.111 15.15 15.14 9.265 3.11439 4.54461 28.56 1479.54 1022.115 15.45 15.43 9.265 3.11492 4.54537 28.57 1479.56 1022.120 15.75 15.73 9.265 3.11443 4.54467 28.56 1479.55 1022.117 16.05 16.03 9.264 3.11466 4.54515 28.57 1479.56 1022.121 16.35 16.33 9.263 3.11551 4.54641 28.58 1479.57 1022.130 16.65 16.63 9.263 3.11569 4.54678 28.58 1479.58 1022.133 16.95 16.93 9.261 3.11625 4.54778 28.59 1479.59 1022.140 17.25 17.23 9.258 3.11663 4.54875 28.59 1479.59 1022.146 17.55 17.53 9.249 3.11649 4.54972 28.60 1479.57 1022.153 17.85 17.83 9.242 3.11771 4.55241 28.61 1479.57 1022.170 18.15 18.13 9.231 3.11658 4.55230 28.61 1479.53 1022.171 18.45 18.43 9.220 3.11453 4.55070 28.60 1479.48 1022.164 18.75 18.73 9.206 3.11487 4.55311 28.61 1479.45 1022.179 19.05 19.03 9.188 3.11402 4.55421 28.62 1479.39 1022.187 19.35 19.32 9.173 3.11366 4.55568 28.63 1479.35 1022.197 19.65 19.62 9.159 3.11358 4.55749 28.64 1479.31 1022.209 19.95 19.92 9.135 3.11536 4.56327 28.68 1479.28 1022.243 20.25 20.22 9.108 3.11605 4.56788 28.70 1479.22 1022.271 20.55 20.52 9.084 3.11407 4.56829 28.70 1479.13 1022.275 20.85 20.82 9.063 3.11329 4.56989 28.71 1479.07 1022.286 21.15 21.12 9.038 3.11199 4.57135 28.72 1478.99 1022.297 21.45 21.42 9.019 3.10931 4.56999 28.71 1478.90 1022.292 21.75 21.72 9.002 3.10805 4.57039 28.71 1478.85 1022.296 22.05 22.02 8.985 3.10757 4.57204 28.72 1478.80 1022.307 22.35 22.32 8.970 3.10886 4.57594 28.74 1478.78 1022.330 22.65 22.61 8.961 3.10938 4.57784 28.75 1478.76 1022.342 22.95 22.91 8.961 3.10971 4.57841 28.76 1478.77 1022.346 23.25 23.21 8.967 3.11127 4.57983 28.77 1478.81 1022.355 23.55 23.51 8.973 3.11352 4.58237 28.79 1478.86 1022.370 23.85 23.81 8.978 3.11462 4.58324 28.79 1478.90 1022.376 24.15 24.11 8.982 3.11536 4.58389 28.80 1478.92 1022.380 24.45 24.41 8.984 3.11589 4.58433 28.80 1478.94 1022.384 24.75 24.71 8.989 3.11548 4.58309 28.79 1478.95 1022.378 25.05 25.01 8.992 3.11603 4.58346 28.80 1478.97 1022.381 25.35 25.31 8.993 3.11547 4.58255 28.79 1478.97 1022.378 25.65 25.61 8.991 3.11754 4.58587 28.81 1479.00 1022.397 25.95 25.90 8.987 3.11655 4.58486 28.81 1478.98 1022.393 26.25 26.20 8.978 3.11613 4.58553 28.81 1478.95 1022.398 26.55 26.50 8.968 3.11646 4.58742 28.82 1478.93 1022.410 26.85 26.80 8.960 3.11972 4.59325 28.86 1478.96 1022.444 27.15 27.10 8.941 3.12205 4.59927 28.90 1478.94 1022.479 27.46 27.41 8.942 3.12266 4.59999 28.90 1478.95 1022.484