*2026/01/16 10:37:49.65 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 18:08:49.000 END TIME : UTC 2025/03/11 18:09:11.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 112 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.47 2 Depth metres 0.15 33.43 3 Temperature 'deg C (ITS90)' 7.936 8.469 4 Conductivity S/m 2.2859 2.91073 5 Conductance:Specific S/m 3.47024 4.34886 6 Salinity PSS-78 21.11 27.11 7 Speed:Sound m/s 1465.07 1475.04 8 Density kg/m^3 1016.399 1021.17 $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 : 76 LATITUDE : 49 14.09060 N ! (deg min) LONGITUDE : 125 46.55560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_180849 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 112 112 MERGEHDR 1.3 2026/01/16 10:35:41 112 112 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 112 112 CALIB 12.1 2026/01/16 10:37:13 112 112 CLEAN 5.3 2026/01/16 10:37:49 112 112 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 7.936 2.28590 3.47024 21.11 1465.07 1016.399 0.45 0.45 8.020 2.37729 3.59972 21.98 1466.48 1017.073 0.75 0.75 8.194 2.52307 3.80046 23.35 1468.85 1018.122 1.05 1.05 8.225 2.62128 3.94469 24.33 1470.18 1018.885 1.35 1.35 8.192 2.64093 3.97831 24.55 1470.33 1019.066 1.65 1.65 8.177 2.68127 4.04085 24.98 1470.80 1019.400 1.95 1.95 8.148 2.69061 4.05851 25.09 1470.83 1019.496 2.25 2.25 8.172 2.71059 4.08564 25.28 1471.16 1019.641 2.55 2.55 8.233 2.72290 4.09665 25.36 1471.50 1019.699 2.85 2.85 8.274 2.72835 4.09988 25.39 1471.70 1019.716 3.15 3.15 8.289 2.74181 4.11824 25.52 1471.91 1019.815 3.45 3.45 8.299 2.76009 4.14440 25.70 1472.18 1019.955 3.75 3.75 8.310 2.78927 4.18677 25.99 1472.59 1020.182 4.05 4.05 8.325 2.80221 4.20434 26.11 1472.80 1020.277 4.35 4.35 8.342 2.81063 4.21487 26.18 1472.96 1020.334 4.65 4.65 8.353 2.81378 4.21818 26.21 1473.03 1020.353 4.95 4.95 8.359 2.81546 4.21989 26.22 1473.08 1020.363 5.25 5.25 8.364 2.81733 4.22218 26.23 1473.12 1020.376 5.55 5.55 8.370 2.81814 4.22254 26.24 1473.15 1020.379 5.85 5.85 8.377 2.82257 4.22837 26.28 1473.23 1020.411 6.15 6.15 8.380 2.83158 4.24137 26.37 1473.36 1020.482 6.45 6.45 8.385 2.83283 4.24268 26.38 1473.40 1020.490 6.75 6.75 8.389 2.83566 4.24641 26.40 1473.45 1020.511 7.05 7.05 8.392 2.84189 4.25530 26.46 1473.54 1020.560 7.35 7.35 8.394 2.84622 4.26151 26.51 1473.61 1020.595 7.65 7.65 8.399 2.84820 4.26396 26.52 1473.65 1020.609 7.95 7.95 8.403 2.84839 4.26369 26.52 1473.67 1020.609 8.25 8.25 8.407 2.84791 4.26245 26.51 1473.68 1020.603 8.55 8.55 8.409 2.84842 4.26298 26.52 1473.70 1020.607 8.85 8.85 8.411 2.84866 4.26308 26.52 1473.71 1020.609 9.15 9.15 8.411 2.84843 4.26267 26.52 1473.71 1020.608 9.45 9.45 8.412 2.84917 4.26363 26.52 1473.73 1020.615 9.75 9.74 8.414 2.84879 4.26290 26.52 1473.73 1020.612 10.05 10.04 8.414 2.84867 4.26262 26.52 1473.74 1020.612 10.35 10.34 8.414 2.84799 4.26166 26.51 1473.73 1020.608 10.65 10.64 8.415 2.84897 4.26297 26.52 1473.76 1020.616 10.95 10.94 8.418 2.85001 4.26415 26.53 1473.78 1020.624 11.25 11.24 8.418 2.85053 4.26490 26.53 1473.79 1020.629 11.55 11.54 8.420 2.85188 4.26672 26.54 1473.82 1020.640 11.85 11.84 8.421 2.85393 4.26961 26.56 1473.85 1020.657 12.15 12.14 8.423 2.85452 4.27034 26.57 1473.87 1020.662 12.45 12.44 8.423 2.85552 4.27180 26.58 1473.89 1020.671 12.75 12.74 8.425 2.85624 4.27265 26.59 1473.91 1020.677 13.05 13.04 8.425 2.85682 4.27352 26.59 1473.92 1020.683 13.35 13.34 8.425 2.85694 4.27364 26.59 1473.93 1020.684 13.65 13.64 8.426 2.85794 4.27506 26.60 1473.95 1020.693 13.95 13.94 8.426 2.86332 4.28302 26.66 1474.02 1020.737 14.25 14.24 8.429 2.86526 4.28562 26.67 1474.06 1020.753 14.55 14.54 8.431 2.86681 4.28768 26.69 1474.09 1020.765 14.85 14.84 8.433 2.86862 4.29010 26.70 1474.12 1020.779 15.15 15.14 8.436 2.86934 4.29084 26.71 1474.14 1020.784 15.45 15.44 8.436 2.87078 4.29291 26.72 1474.17 1020.797 15.75 15.74 8.438 2.87103 4.29302 26.73 1474.18 1020.798 16.05 16.04 8.439 2.87075 4.29250 26.72 1474.18 1020.797 16.35 16.34 8.440 2.87210 4.29438 26.73 1474.21 1020.808 16.65 16.64 8.441 2.87343 4.29623 26.75 1474.23 1020.819 16.95 16.94 8.441 2.87572 4.29971 26.77 1474.27 1020.839 17.25 17.24 8.442 2.87660 4.30091 26.78 1474.29 1020.847 17.55 17.53 8.444 2.87803 4.30277 26.79 1474.31 1020.858 17.85 17.83 8.446 2.87937 4.30450 26.80 1474.34 1020.869 18.15 18.13 8.449 2.88029 4.30543 26.81 1474.37 1020.875 18.45 18.43 8.450 2.88149 4.30723 26.82 1474.39 1020.886 18.75 18.73 8.450 2.88213 4.30806 26.83 1474.40 1020.892 19.05 19.03 8.450 2.88209 4.30801 26.83 1474.41 1020.893 19.35 19.33 8.449 2.88205 4.30813 26.83 1474.41 1020.895 19.65 19.63 8.451 2.88232 4.30833 26.83 1474.42 1020.897 19.95 19.93 8.452 2.88233 4.30821 26.83 1474.43 1020.897 20.25 20.23 8.452 2.88281 4.30885 26.83 1474.44 1020.902 20.55 20.53 8.452 2.88275 4.30877 26.83 1474.45 1020.903 20.85 20.83 8.452 2.88304 4.30924 26.84 1474.45 1020.907 21.15 21.13 8.453 2.88335 4.30960 26.84 1474.46 1020.910 21.45 21.43 8.453 2.88393 4.31046 26.84 1474.48 1020.916 21.75 21.73 8.453 2.88379 4.31016 26.84 1474.48 1020.916 22.05 22.03 8.452 2.88332 4.30960 26.84 1474.48 1020.914 22.35 22.33 8.451 2.88344 4.30995 26.84 1474.48 1020.917 22.65 22.63 8.451 2.88324 4.30967 26.84 1474.48 1020.917 22.95 22.93 8.451 2.88424 4.31110 26.85 1474.50 1020.926 23.25 23.23 8.451 2.88399 4.31073 26.85 1474.50 1020.925 23.55 23.53 8.451 2.88440 4.31133 26.85 1474.51 1020.930 23.85 23.83 8.453 2.88415 4.31069 26.85 1474.52 1020.927 24.15 24.12 8.453 2.88463 4.31142 26.85 1474.53 1020.933 24.45 24.42 8.454 2.88433 4.31093 26.85 1474.53 1020.931 24.75 24.72 8.454 2.88508 4.31199 26.85 1474.55 1020.938 25.05 25.02 8.454 2.88534 4.31236 26.86 1474.56 1020.942 25.35 25.32 8.454 2.88533 4.31234 26.86 1474.56 1020.943 25.65 25.62 8.454 2.88537 4.31238 26.86 1474.57 1020.944 25.95 25.92 8.454 2.88540 4.31249 26.86 1474.57 1020.946 26.25 26.22 8.453 2.88865 4.31744 26.89 1474.61 1020.974 26.55 26.52 8.454 2.88995 4.31928 26.90 1474.64 1020.985 26.85 26.82 8.455 2.89166 4.32178 26.92 1474.66 1021.000 27.15 27.12 8.457 2.89228 4.32243 26.93 1474.68 1021.005 27.45 27.42 8.459 2.89631 4.32818 26.96 1474.74 1021.037 27.75 27.72 8.460 2.89755 4.32993 26.98 1474.77 1021.047 28.05 28.02 8.462 2.89990 4.33311 27.00 1474.81 1021.066 28.35 28.32 8.463 2.90062 4.33406 27.01 1474.83 1021.072 28.65 28.62 8.464 2.90302 4.33754 27.03 1474.86 1021.092 28.95 28.92 8.465 2.90397 4.33885 27.04 1474.88 1021.100 29.25 29.22 8.466 2.90532 4.34072 27.05 1474.91 1021.112 29.55 29.52 8.467 2.90607 4.34174 27.06 1474.92 1021.118 29.85 29.82 8.467 2.90776 4.34417 27.07 1474.95 1021.133 30.15 30.12 8.466 2.90828 4.34510 27.08 1474.96 1021.139 30.45 30.41 8.467 2.90883 4.34586 27.09 1474.97 1021.144 30.75 30.71 8.465 2.90983 4.34752 27.10 1474.99 1021.155 31.05 31.01 8.467 2.91014 4.34774 27.10 1475.00 1021.157 31.35 31.31 8.466 2.90990 4.34756 27.10 1475.00 1021.157 31.65 31.61 8.465 2.91048 4.34851 27.10 1475.01 1021.164 31.95 31.91 8.465 2.91073 4.34886 27.11 1475.02 1021.167 32.25 32.21 8.467 2.91029 4.34794 27.10 1475.02 1021.163 32.55 32.51 8.469 2.91051 4.34812 27.10 1475.03 1021.165 32.85 32.81 8.468 2.91036 4.34798 27.10 1475.03 1021.166 33.15 33.11 8.468 2.91068 4.34842 27.10 1475.04 1021.170 33.47 33.43 8.467 2.91036 4.34810 27.10 1475.04 1021.169