*2026/01/16 10:37:53.99 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 23:23:59.000 END TIME : UTC 2025/05/08 23:24:20.800 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 32.71 2 Depth metres 0.15 32.58 3 Temperature 'deg C (ITS90)' 9.206 13.759 4 Conductivity S/m 2.98534 3.43612 5 Conductance:Specific S/m 3.85744 5.02197 6 Salinity PSS-78 24.2 31.89 7 Speed:Sound m/s 1483.49 1491.8 8 Density kg/m^3 1017.904 1024.8 $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 : 144 LATITUDE : 48 57.90730 N ! (deg min) LONGITUDE : 125 3.45600 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_232359 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 110 110 MERGEHDR 1.3 2026/01/16 10:35:44 110 110 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 110 110 CALIB 12.1 2026/01/16 10:37:17 110 110 CLEAN 5.3 2026/01/16 10:37:53 110 110 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:41 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 13.759 2.99022 3.85744 24.20 1490.02 1017.904 0.45 0.45 13.664 2.98534 3.86064 24.21 1489.72 1017.936 0.75 0.75 13.609 3.00576 3.89253 24.43 1489.79 1018.114 1.05 1.05 13.566 3.03917 3.94019 24.76 1490.04 1018.376 1.35 1.35 13.487 3.07758 3.99821 25.16 1490.24 1018.698 1.65 1.65 13.440 3.11018 4.04549 25.48 1490.47 1018.959 1.95 1.95 13.430 3.16382 4.11629 25.97 1491.02 1019.342 2.25 2.25 13.409 3.21425 4.18427 26.45 1491.51 1019.712 2.55 2.55 13.315 3.24346 4.23263 26.78 1491.58 1019.987 2.85 2.85 13.264 3.27509 4.27960 27.10 1491.80 1020.248 3.15 3.15 13.131 3.28730 4.31049 27.31 1491.60 1020.434 3.45 3.45 13.039 3.29308 4.32857 27.43 1491.43 1020.545 3.75 3.75 12.874 3.30373 4.36142 27.65 1491.13 1020.745 4.05 4.05 12.682 3.32425 4.41095 27.98 1490.87 1021.039 4.35 4.35 12.447 3.33907 4.45835 28.29 1490.44 1021.326 4.65 4.65 12.226 3.35313 4.50376 28.59 1490.04 1021.599 4.95 4.95 11.908 3.36922 4.56430 28.99 1489.41 1021.965 5.25 5.25 11.598 3.37885 4.61616 29.32 1488.74 1022.281 5.55 5.55 11.293 3.38612 4.66494 29.64 1488.04 1022.579 5.85 5.85 11.028 3.39749 4.71509 29.96 1487.50 1022.879 6.15 6.14 10.829 3.40434 4.75075 30.19 1487.07 1023.092 6.45 6.44 10.628 3.40605 4.78005 30.38 1486.58 1023.271 6.75 6.74 10.400 3.40592 4.81064 30.57 1486.00 1023.457 7.05 7.04 10.222 3.40457 4.83308 30.70 1485.52 1023.595 7.35 7.34 10.083 3.40603 4.85419 30.83 1485.19 1023.721 7.65 7.64 9.959 3.40921 4.87599 30.97 1484.91 1023.850 7.95 7.94 9.890 3.41222 4.88998 31.06 1484.77 1023.933 8.25 8.24 9.822 3.41197 4.89920 31.12 1484.60 1023.989 8.55 8.53 9.753 3.41247 4.90954 31.18 1484.43 1024.051 8.85 8.83 9.714 3.41085 4.91273 31.20 1484.31 1024.073 9.15 9.13 9.696 3.41098 4.91550 31.22 1484.27 1024.090 9.45 9.43 9.679 3.41087 4.91778 31.23 1484.23 1024.105 9.75 9.73 9.660 3.41204 4.92217 31.26 1484.20 1024.131 10.05 10.03 9.638 3.41214 4.92537 31.28 1484.15 1024.151 10.35 10.33 9.626 3.41127 4.92594 31.28 1484.11 1024.157 10.65 10.62 9.602 3.41213 4.93046 31.31 1484.07 1024.184 10.95 10.92 9.576 3.41177 4.93377 31.33 1484.00 1024.205 11.25 11.22 9.559 3.41166 4.93606 31.34 1483.96 1024.220 11.55 11.52 9.545 3.41187 4.93832 31.36 1483.93 1024.234 11.85 11.82 9.528 3.41323 4.94274 31.38 1483.91 1024.261 12.15 12.12 9.505 3.41233 4.94469 31.40 1483.84 1024.274 12.45 12.42 9.487 3.41118 4.94561 31.40 1483.78 1024.281 12.75 12.71 9.473 3.41267 4.94981 31.43 1483.77 1024.307 13.05 13.01 9.455 3.41339 4.95338 31.45 1483.74 1024.328 13.35 13.31 9.446 3.41381 4.95536 31.46 1483.72 1024.341 13.65 13.61 9.438 3.41309 4.95545 31.46 1483.70 1024.343 13.95 13.91 9.427 3.41372 4.95784 31.48 1483.68 1024.358 14.25 14.21 9.413 3.41235 4.95794 31.48 1483.63 1024.361 14.55 14.51 9.400 3.41179 4.95903 31.48 1483.60 1024.369 14.85 14.80 9.388 3.41225 4.96136 31.50 1483.58 1024.383 15.15 15.10 9.376 3.41149 4.96209 31.50 1483.54 1024.389 15.45 15.40 9.372 3.41254 4.96415 31.51 1483.55 1024.402 15.75 15.70 9.369 3.41350 4.96591 31.52 1483.56 1024.413 16.05 16.00 9.364 3.41350 4.96666 31.53 1483.55 1024.419 16.35 16.30 9.359 3.41355 4.96746 31.53 1483.54 1024.425 16.65 16.60 9.358 3.41445 4.96898 31.54 1483.55 1024.434 16.95 16.89 9.356 3.41529 4.97048 31.55 1483.56 1024.444 17.25 17.19 9.357 3.41635 4.97185 31.56 1483.59 1024.453 17.55 17.49 9.355 3.41738 4.97366 31.58 1483.60 1024.464 17.85 17.79 9.352 3.41835 4.97545 31.59 1483.61 1024.475 18.15 18.09 9.349 3.41827 4.97581 31.59 1483.60 1024.479 18.45 18.39 9.341 3.41751 4.97581 31.59 1483.58 1024.480 18.75 18.69 9.331 3.41771 4.97754 31.60 1483.56 1024.492 19.05 18.98 9.325 3.41738 4.97804 31.60 1483.54 1024.496 19.35 19.28 9.319 3.41742 4.97884 31.61 1483.53 1024.502 19.65 19.58 9.312 3.41706 4.97942 31.61 1483.51 1024.507 19.95 19.88 9.305 3.41699 4.98032 31.62 1483.50 1024.513 20.25 20.18 9.298 3.41731 4.98185 31.63 1483.49 1024.523 20.55 20.48 9.293 3.41833 4.98401 31.64 1483.50 1024.537 20.85 20.78 9.288 3.41887 4.98549 31.65 1483.49 1024.546 21.15 21.07 9.281 3.42095 4.98952 31.68 1483.51 1024.570 21.45 21.37 9.273 3.42277 4.99340 31.70 1483.51 1024.593 21.75 21.67 9.269 3.42519 4.99750 31.73 1483.54 1024.617 22.05 21.97 9.263 3.42747 5.00168 31.76 1483.56 1024.642 22.35 22.27 9.255 3.42839 5.00423 31.78 1483.55 1024.657 22.65 22.57 9.250 3.42930 5.00635 31.79 1483.55 1024.671 22.95 22.86 9.246 3.42985 5.00760 31.80 1483.56 1024.679 23.25 23.16 9.245 3.42987 5.00787 31.80 1483.56 1024.682 23.55 23.46 9.241 3.43032 5.00904 31.81 1483.56 1024.690 23.85 23.76 9.238 3.43036 5.00955 31.81 1483.56 1024.694 24.15 24.06 9.235 3.42991 5.00943 31.81 1483.55 1024.695 24.45 24.36 9.231 3.43079 5.01118 31.82 1483.55 1024.706 24.75 24.66 9.230 3.43172 5.01280 31.83 1483.57 1024.716 25.05 24.95 9.227 3.43233 5.01410 31.84 1483.57 1024.725 25.35 25.25 9.223 3.43279 5.01527 31.85 1483.57 1024.732 25.65 25.55 9.218 3.43349 5.01704 31.86 1483.57 1024.744 25.95 25.85 9.214 3.43377 5.01805 31.87 1483.57 1024.751 26.25 26.15 9.211 3.43354 5.01815 31.87 1483.56 1024.753 26.55 26.45 9.208 3.43349 5.01848 31.87 1483.56 1024.756 26.85 26.74 9.207 3.43399 5.01942 31.87 1483.57 1024.762 27.15 27.04 9.207 3.43361 5.01883 31.87 1483.57 1024.760 27.45 27.34 9.208 3.43411 5.01952 31.88 1483.58 1024.765 27.75 27.64 9.207 3.43355 5.01874 31.87 1483.58 1024.762 28.05 27.94 9.207 3.43389 5.01931 31.87 1483.59 1024.767 28.35 28.24 9.206 3.43407 5.01966 31.88 1483.59 1024.770 28.65 28.53 9.206 3.43415 5.01981 31.88 1483.60 1024.772 28.95 28.83 9.206 3.43417 5.01983 31.88 1483.60 1024.774 29.25 29.13 9.208 3.43396 5.01920 31.87 1483.61 1024.771 29.55 29.43 9.212 3.43402 5.01876 31.87 1483.62 1024.770 29.85 29.73 9.214 3.43393 5.01836 31.87 1483.63 1024.769 30.15 30.03 9.214 3.43378 5.01813 31.86 1483.64 1024.769 30.45 30.33 9.217 3.43543 5.02001 31.88 1483.67 1024.780 30.75 30.62 9.228 3.43612 5.01947 31.88 1483.71 1024.778 31.05 30.92 9.237 3.43460 5.01593 31.85 1483.72 1024.760 31.35 31.22 9.224 3.43352 5.01621 31.85 1483.68 1024.763 31.65 31.52 9.212 3.43425 5.01904 31.87 1483.66 1024.780 31.95 31.82 9.210 3.43443 5.01960 31.87 1483.66 1024.785 32.25 32.12 9.210 3.43482 5.02027 31.88 1483.67 1024.790 32.55 32.41 9.211 3.43612 5.02197 31.89 1483.70 1024.800 32.71 32.58 9.217 3.43525 5.01974 31.88 1483.71 1024.788