*2026/01/16 10:37:53.79 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 20:35:49.000 END TIME : UTC 2025/05/08 20:36:12.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 120 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.72 2 Depth metres 0.15 35.56 3 Temperature 'deg C (ITS90)' 8.942 13.032 4 Conductivity S/m 3.39449 3.48146 5 Conductance:Specific S/m 4.56509 5.05299 6 Salinity PSS-78 29.09 32.07 7 Speed:Sound m/s 1482.83 1493.32 8 Density kg/m^3 1021.818 1024.996 $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 : 140 LATITUDE : 48 56.79370 N ! (deg min) LONGITUDE : 125 19.23910 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_203549 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 120 120 MERGEHDR 1.3 2026/01/16 10:35:44 120 120 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 120 120 CALIB 12.1 2026/01/16 10:37:17 120 120 CLEAN 5.3 2026/01/16 10:37:53 120 120 $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 13.032 3.47236 4.56509 29.09 1493.32 1021.818 0.45 0.45 12.918 3.47121 4.57724 29.17 1493.03 1021.900 0.75 0.75 12.756 3.46313 4.58619 29.22 1492.54 1021.970 1.05 1.05 12.726 3.46768 4.59583 29.29 1492.52 1022.028 1.35 1.35 12.701 3.46760 4.59880 29.30 1492.46 1022.048 1.65 1.65 12.646 3.47163 4.61090 29.39 1492.37 1022.122 1.95 1.95 12.514 3.47399 4.63026 29.51 1492.08 1022.245 2.25 2.24 12.359 3.48011 4.65767 29.69 1491.76 1022.414 2.55 2.54 12.199 3.48146 4.67949 29.83 1491.38 1022.553 2.85 2.84 12.012 3.47588 4.69556 29.93 1490.86 1022.663 3.15 3.14 11.874 3.47370 4.71027 30.02 1490.49 1022.759 3.45 3.44 11.763 3.47198 4.72207 30.09 1490.20 1022.837 3.75 3.74 11.618 3.46999 4.73815 30.19 1489.81 1022.941 4.05 4.04 11.470 3.46471 4.75005 30.26 1489.38 1023.022 4.35 4.34 11.283 3.45698 4.76396 30.34 1488.82 1023.117 4.65 4.64 10.952 3.43651 4.77930 30.41 1487.75 1023.232 4.95 4.93 10.700 3.42693 4.79967 30.52 1486.99 1023.366 5.25 5.23 10.469 3.42162 4.82337 30.66 1486.34 1023.516 5.55 5.53 10.266 3.41912 4.84764 30.81 1485.79 1023.665 5.85 5.83 10.115 3.41661 4.86486 30.91 1485.38 1023.771 6.15 6.13 10.000 3.41465 4.87802 30.99 1485.06 1023.853 6.45 6.43 9.899 3.41285 4.88967 31.06 1484.78 1023.924 6.75 6.73 9.792 3.40766 4.89714 31.10 1484.44 1023.973 7.05 7.03 9.715 3.40383 4.90254 31.13 1484.20 1024.009 7.35 7.32 9.662 3.39957 4.90393 31.13 1484.01 1024.021 7.65 7.62 9.605 3.39661 4.90770 31.15 1483.83 1024.046 7.95 7.92 9.545 3.39654 4.91612 31.20 1483.68 1024.097 8.25 8.22 9.479 3.39685 4.92599 31.26 1483.52 1024.156 8.55 8.52 9.441 3.39693 4.93154 31.30 1483.42 1024.190 8.85 8.82 9.425 3.39725 4.93422 31.31 1483.39 1024.207 9.15 9.12 9.413 3.39781 4.93682 31.33 1483.37 1024.223 9.45 9.41 9.405 3.39793 4.93813 31.34 1483.36 1024.232 9.75 9.71 9.390 3.39766 4.93987 31.35 1483.32 1024.243 10.05 10.01 9.374 3.39712 4.94139 31.36 1483.28 1024.254 10.35 10.31 9.364 3.39738 4.94322 31.37 1483.26 1024.266 10.65 10.61 9.356 3.39708 4.94399 31.37 1483.24 1024.272 10.95 10.91 9.343 3.39649 4.94500 31.38 1483.20 1024.279 11.25 11.21 9.329 3.39609 4.94638 31.38 1483.16 1024.289 11.55 11.50 9.316 3.39638 4.94871 31.40 1483.14 1024.303 11.85 11.80 9.309 3.39468 4.94717 31.39 1483.10 1024.297 12.15 12.10 9.293 3.39449 4.94929 31.40 1483.06 1024.310 12.45 12.40 9.276 3.39452 4.95171 31.41 1483.02 1024.326 12.75 12.70 9.269 3.39492 4.95337 31.42 1483.01 1024.336 13.05 13.00 9.260 3.39524 4.95507 31.43 1483.00 1024.347 13.35 13.30 9.251 3.39453 4.95542 31.44 1482.97 1024.351 13.65 13.59 9.247 3.39489 4.95646 31.44 1482.97 1024.358 13.95 13.89 9.241 3.39522 4.95786 31.45 1482.96 1024.368 14.25 14.19 9.233 3.39524 4.95895 31.46 1482.95 1024.375 14.55 14.49 9.227 3.39568 4.96048 31.47 1482.94 1024.385 14.85 14.79 9.222 3.39541 4.96087 31.47 1482.93 1024.389 15.15 15.09 9.217 3.39597 4.96242 31.48 1482.93 1024.399 15.45 15.39 9.211 3.39483 4.96156 31.47 1482.91 1024.396 15.75 15.68 9.203 3.39577 4.96415 31.49 1482.90 1024.411 16.05 15.98 9.197 3.39669 4.96639 31.50 1482.90 1024.425 16.35 16.28 9.189 3.39823 4.96980 31.53 1482.90 1024.446 16.65 16.58 9.182 3.39868 4.97146 31.54 1482.90 1024.456 16.95 16.88 9.176 3.39890 4.97270 31.55 1482.89 1024.465 17.25 17.18 9.170 3.39884 4.97343 31.55 1482.88 1024.470 17.55 17.48 9.166 3.39991 4.97557 31.56 1482.88 1024.484 17.85 17.77 9.162 3.39989 4.97614 31.57 1482.88 1024.488 18.15 18.07 9.161 3.39972 4.97608 31.57 1482.88 1024.489 18.45 18.37 9.157 3.40038 4.97761 31.58 1482.88 1024.499 18.75 18.67 9.154 3.40092 4.97884 31.58 1482.88 1024.507 19.05 18.97 9.151 3.40169 4.98040 31.60 1482.89 1024.517 19.35 19.27 9.145 3.40154 4.98095 31.60 1482.88 1024.522 19.65 19.57 9.139 3.40126 4.98145 31.60 1482.86 1024.526 19.95 19.86 9.134 3.40133 4.98234 31.61 1482.86 1024.532 20.25 20.16 9.130 3.40076 4.98212 31.60 1482.84 1024.533 20.55 20.46 9.127 3.40201 4.98439 31.62 1482.86 1024.547 20.85 20.76 9.123 3.40249 4.98561 31.63 1482.86 1024.555 21.15 21.06 9.121 3.40204 4.98532 31.62 1482.85 1024.555 21.45 21.36 9.118 3.40379 4.98820 31.64 1482.87 1024.572 21.75 21.65 9.117 3.40428 4.98909 31.65 1482.88 1024.578 22.05 21.95 9.112 3.40439 4.99003 31.66 1482.87 1024.585 22.35 22.25 9.109 3.40424 4.99019 31.66 1482.87 1024.587 22.65 22.55 9.109 3.40435 4.99033 31.66 1482.87 1024.589 22.95 22.85 9.106 3.40569 4.99287 31.67 1482.89 1024.604 23.25 23.15 9.098 3.40734 4.99640 31.70 1482.89 1024.625 23.55 23.45 9.090 3.40744 4.99773 31.71 1482.88 1024.634 23.85 23.74 9.084 3.40727 4.99830 31.71 1482.86 1024.639 24.15 24.04 9.081 3.40920 5.00157 31.73 1482.89 1024.658 24.45 24.34 9.077 3.40909 5.00205 31.73 1482.88 1024.662 24.75 24.64 9.075 3.40894 5.00217 31.74 1482.87 1024.664 25.05 24.94 9.072 3.40919 5.00289 31.74 1482.88 1024.670 25.35 25.24 9.069 3.40909 5.00319 31.74 1482.87 1024.673 25.65 25.53 9.065 3.40906 5.00377 31.74 1482.86 1024.677 25.95 25.83 9.062 3.40864 5.00363 31.74 1482.86 1024.678 26.25 26.13 9.058 3.40847 5.00392 31.74 1482.85 1024.681 26.55 26.43 9.052 3.40875 5.00514 31.75 1482.84 1024.689 26.85 26.73 9.044 3.40936 5.00723 31.77 1482.83 1024.703 27.15 27.03 9.037 3.41117 5.01095 31.79 1482.84 1024.725 27.45 27.33 9.034 3.41310 5.01419 31.81 1482.86 1024.744 27.75 27.62 9.028 3.41447 5.01713 31.83 1482.87 1024.761 28.05 27.92 9.022 3.41453 5.01810 31.84 1482.86 1024.768 28.35 28.22 9.018 3.41480 5.01913 31.84 1482.86 1024.776 28.65 28.52 9.014 3.41496 5.02001 31.85 1482.85 1024.782 28.95 28.82 9.007 3.41595 5.02248 31.87 1482.85 1024.797 29.25 29.12 9.001 3.41706 5.02495 31.88 1482.86 1024.812 29.55 29.41 8.997 3.41757 5.02630 31.89 1482.86 1024.821 29.85 29.71 8.992 3.41756 5.02695 31.90 1482.85 1024.826 30.15 30.01 8.987 3.41872 5.02938 31.91 1482.86 1024.841 30.45 30.31 8.984 3.41878 5.03001 31.92 1482.85 1024.846 30.75 30.61 8.981 3.41885 5.03051 31.92 1482.85 1024.850 31.05 30.91 8.980 3.41998 5.03234 31.93 1482.87 1024.861 31.35 31.21 8.977 3.42103 5.03426 31.94 1482.88 1024.873 31.65 31.50 8.973 3.42126 5.03520 31.95 1482.88 1024.880 31.95 31.80 8.973 3.42185 5.03610 31.96 1482.89 1024.886 32.25 32.10 8.979 3.42227 5.03590 31.96 1482.91 1024.886 32.55 32.40 8.976 3.42347 5.03811 31.97 1482.92 1024.899 32.85 32.70 8.974 3.42435 5.03963 31.98 1482.94 1024.909 33.15 33.00 8.975 3.42433 5.03951 31.98 1482.94 1024.910 33.45 33.29 8.976 3.42465 5.03979 31.98 1482.95 1024.912 33.75 33.59 8.974 3.42444 5.03981 31.98 1482.95 1024.914 34.05 33.89 8.971 3.42535 5.04153 31.99 1482.96 1024.925 34.35 34.19 8.972 3.42578 5.04206 32.00 1482.97 1024.929 34.65 34.49 8.974 3.42680 5.04332 32.01 1482.99 1024.937 34.95 34.79 8.971 3.42764 5.04493 32.02 1483.00 1024.947 35.25 35.08 8.962 3.42758 5.04627 32.02 1482.98 1024.956 35.55 35.38 8.950 3.42879 5.04977 32.05 1482.97 1024.977 35.72 35.56 8.942 3.43017 5.05299 32.07 1482.97 1024.996