*2026/01/16 10:37:59.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/23 17:05:04.000 END TIME : UTC 2025/07/23 17:05:33.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 146 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.62 2 Depth metres 0.15 43.4 3 Temperature 'deg C (ITS90)' 8.548 16.681 4 Conductivity S/m 3.45376 3.90302 5 Conductance:Specific S/m 4.67106 5.14742 6 Salinity PSS-78 30.09 32.67 7 Speed:Sound m/s 1482.37 1506.24 8 Density kg/m^3 1021.827 1025.564 $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 : 240 LATITUDE : 49 39.63270 N ! (deg min) LONGITUDE : 126 27.51840 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250723_170504 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 146 146 MERGEHDR 1.3 2026/01/16 10:35:49 146 146 HDREDIT2 3.2 2026/01/16 10:36:20 ? ? REMOVECH 8.2 2026/01/16 10:36:52 146 146 CALIB 12.1 2026/01/16 10:37:23 146 146 CLEAN 5.3 2026/01/16 10:37:59 146 146 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:20 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 10:36:52 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:23 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 16.681 3.89388 4.67106 30.09 1506.24 1021.827 0.45 0.45 16.629 3.89249 4.67526 30.12 1506.12 1021.861 0.75 0.75 16.535 3.88953 4.68219 30.17 1505.89 1021.917 1.05 1.05 16.438 3.89409 4.69872 30.28 1505.72 1022.027 1.35 1.35 16.387 3.89511 4.70572 30.33 1505.62 1022.076 1.65 1.65 16.337 3.89637 4.71288 30.37 1505.53 1022.126 1.95 1.94 16.322 3.89826 4.71697 30.40 1505.52 1022.152 2.25 2.24 16.323 3.89866 4.71729 30.40 1505.53 1022.155 2.55 2.54 16.318 3.89962 4.71903 30.42 1505.54 1022.167 2.85 2.84 16.311 3.89950 4.71969 30.42 1505.52 1022.173 3.15 3.14 16.298 3.90069 4.72256 30.44 1505.51 1022.192 3.45 3.44 16.280 3.90152 4.72562 30.46 1505.49 1022.214 3.75 3.74 16.257 3.90302 4.73010 30.49 1505.45 1022.244 4.05 4.04 16.225 3.90214 4.73270 30.51 1505.38 1022.265 4.35 4.34 16.175 3.90041 4.73633 30.53 1505.26 1022.295 4.65 4.64 16.090 3.89589 4.74068 30.56 1505.03 1022.336 4.95 4.94 15.957 3.88832 4.74680 30.59 1504.66 1022.394 5.25 5.24 15.841 3.87659 4.74592 30.58 1504.28 1022.410 5.55 5.53 15.781 3.88080 4.75806 30.66 1504.20 1022.489 5.85 5.83 15.655 3.88382 4.77658 30.79 1503.95 1022.614 6.15 6.13 15.266 3.87674 4.81393 31.03 1503.01 1022.886 6.45 6.43 14.720 3.83817 4.83156 31.12 1501.37 1023.071 6.75 6.73 14.502 3.82500 4.84152 31.17 1500.73 1023.160 7.05 7.03 14.219 3.82786 4.88014 31.43 1500.12 1023.417 7.35 7.33 13.904 3.82753 4.91923 31.68 1499.39 1023.679 7.65 7.63 13.674 3.81746 4.93543 31.78 1498.75 1023.802 7.95 7.93 13.535 3.81233 4.94662 31.85 1498.38 1023.884 8.25 8.22 13.437 3.81192 4.95869 31.93 1498.15 1023.965 8.55 8.52 13.372 3.81077 4.96553 31.97 1497.99 1024.013 8.85 8.82 13.327 3.80922 4.96931 31.99 1497.87 1024.041 9.15 9.12 13.265 3.80724 4.97489 32.03 1497.71 1024.081 9.45 9.42 13.188 3.79983 4.97510 32.02 1497.45 1024.093 9.75 9.72 13.133 3.79653 4.97800 32.04 1497.29 1024.118 10.05 10.02 13.101 3.78766 4.97051 31.98 1497.12 1024.081 10.35 10.31 13.052 3.78349 4.97146 31.98 1496.97 1024.094 10.65 10.61 12.993 3.78114 4.97606 32.01 1496.81 1024.128 10.95 10.91 12.931 3.77891 4.98134 32.04 1496.64 1024.166 11.25 11.21 12.881 3.77499 4.98264 32.05 1496.48 1024.181 11.55 11.51 12.835 3.77331 4.98649 32.07 1496.36 1024.209 11.85 11.81 12.778 3.76968 4.98919 32.08 1496.19 1024.232 12.15 12.11 12.730 3.76580 4.99041 32.09 1496.04 1024.246 12.45 12.40 12.710 3.76534 4.99251 32.10 1495.99 1024.261 12.75 12.70 12.697 3.76368 4.99207 32.10 1495.94 1024.261 13.05 13.00 12.676 3.76028 4.99030 32.08 1495.86 1024.255 13.35 13.30 12.622 3.75354 4.98844 32.06 1495.66 1024.252 13.65 13.60 12.488 3.74672 4.99726 32.11 1495.27 1024.318 13.95 13.90 12.387 3.73296 4.99236 32.07 1494.88 1024.304 14.25 14.20 12.339 3.72651 4.99007 32.05 1494.69 1024.297 14.55 14.49 12.274 3.72433 4.99591 32.08 1494.52 1024.338 14.85 14.79 12.214 3.72323 5.00248 32.12 1494.37 1024.382 15.15 15.09 12.141 3.72045 5.00855 32.16 1494.16 1024.425 15.45 15.39 12.036 3.71645 5.01736 32.21 1493.87 1024.486 15.75 15.69 11.894 3.69818 5.01191 32.16 1493.32 1024.472 16.05 15.99 11.796 3.67734 4.99690 32.04 1492.85 1024.400 16.35 16.29 11.664 3.66954 5.00424 32.08 1492.44 1024.455 16.65 16.58 11.547 3.66542 5.01463 32.14 1492.11 1024.526 16.95 16.88 11.496 3.66270 5.01799 32.16 1491.96 1024.550 17.25 17.18 11.456 3.66212 5.02271 32.18 1491.86 1024.581 17.55 17.48 11.412 3.65975 5.02554 32.20 1491.73 1024.602 17.85 17.78 11.381 3.65589 5.02442 32.19 1491.61 1024.600 18.15 18.08 11.364 3.65374 5.02379 32.18 1491.55 1024.600 18.45 18.37 11.344 3.65278 5.02532 32.19 1491.50 1024.611 18.75 18.67 11.318 3.65208 5.02794 32.21 1491.43 1024.629 19.05 18.97 11.294 3.65072 5.02933 32.21 1491.36 1024.641 19.35 19.27 11.271 3.64785 5.02854 32.20 1491.28 1024.639 19.65 19.57 11.232 3.64503 5.03012 32.21 1491.15 1024.653 19.95 19.87 11.186 3.64035 5.03002 32.21 1490.99 1024.658 20.25 20.17 11.149 3.63677 5.03031 32.20 1490.86 1024.664 20.55 20.46 11.111 3.63365 5.03119 32.20 1490.73 1024.673 20.85 20.76 11.072 3.63076 5.03266 32.21 1490.61 1024.686 21.15 21.06 11.043 3.62964 5.03509 32.22 1490.53 1024.703 21.45 21.36 11.019 3.62823 5.03654 32.23 1490.45 1024.715 21.75 21.66 11.001 3.62645 5.03665 32.23 1490.39 1024.718 22.05 21.96 10.980 3.62627 5.03924 32.25 1490.35 1024.735 22.35 22.25 10.964 3.62425 5.03866 32.24 1490.29 1024.735 22.65 22.55 10.946 3.62315 5.03964 32.24 1490.23 1024.743 22.95 22.85 10.913 3.61883 5.03832 32.23 1490.10 1024.740 23.25 23.15 10.880 3.61457 5.03699 32.22 1489.98 1024.736 23.55 23.45 10.855 3.61238 5.03752 32.22 1489.89 1024.743 23.85 23.75 10.815 3.61059 5.04056 32.24 1489.78 1024.764 24.15 24.04 10.756 3.60831 5.04571 32.26 1489.61 1024.798 24.45 24.34 10.645 3.60087 5.05104 32.29 1489.25 1024.838 24.75 24.64 10.483 3.58499 5.05164 32.27 1488.66 1024.854 25.05 24.94 10.335 3.57214 5.05473 32.28 1488.13 1024.884 25.35 25.24 10.190 3.55547 5.05183 32.24 1487.57 1024.879 25.65 25.54 10.063 3.53707 5.04392 32.16 1487.03 1024.845 25.95 25.84 9.916 3.52664 5.05016 32.19 1486.53 1024.890 26.25 26.13 9.782 3.52068 5.06111 32.25 1486.12 1024.960 26.55 26.43 9.684 3.51586 5.06839 32.29 1485.82 1025.007 26.85 26.73 9.620 3.51423 5.07537 32.33 1485.64 1025.050 27.15 27.03 9.576 3.51255 5.07941 32.35 1485.51 1025.076 27.45 27.33 9.540 3.51096 5.08245 32.37 1485.40 1025.096 27.75 27.63 9.514 3.50935 5.08398 32.37 1485.32 1025.107 28.05 27.92 9.496 3.50780 5.08435 32.37 1485.26 1025.111 28.35 28.22 9.477 3.50660 5.08545 32.38 1485.20 1025.120 28.65 28.52 9.453 3.50528 5.08697 32.39 1485.13 1025.131 28.95 28.82 9.434 3.50374 5.08762 32.39 1485.07 1025.136 29.25 29.12 9.410 3.50241 5.08922 32.39 1484.99 1025.148 29.55 29.42 9.386 3.50159 5.09159 32.41 1484.93 1025.163 29.85 29.71 9.361 3.50065 5.09389 32.42 1484.85 1025.178 30.15 30.01 9.334 3.49999 5.09704 32.44 1484.78 1025.198 30.45 30.31 9.311 3.49823 5.09782 32.44 1484.71 1025.205 30.75 30.61 9.278 3.49435 5.09710 32.43 1484.58 1025.204 31.05 30.91 9.217 3.49047 5.10054 32.45 1484.37 1025.227 31.35 31.20 9.157 3.48576 5.10257 32.45 1484.17 1025.242 31.65 31.50 9.110 3.48157 5.10340 32.45 1484.00 1025.250 31.95 31.80 9.075 3.48033 5.10692 32.47 1483.89 1025.272 32.25 32.10 9.051 3.47944 5.10908 32.48 1483.83 1025.286 32.55 32.40 9.026 3.47933 5.11273 32.50 1483.77 1025.309 32.85 32.70 9.013 3.47955 5.11502 32.52 1483.74 1025.323 33.15 32.99 9.006 3.47900 5.11521 32.52 1483.72 1025.326 33.45 33.29 9.003 3.47783 5.11407 32.51 1483.70 1025.321 33.75 33.59 9.001 3.47852 5.11535 32.52 1483.71 1025.330 34.05 33.89 8.996 3.47813 5.11556 32.52 1483.70 1025.332 34.35 34.19 8.992 3.47849 5.11671 32.53 1483.69 1025.340 34.65 34.49 8.987 3.47861 5.11758 32.53 1483.69 1025.346 34.95 34.78 8.989 3.47905 5.11783 32.53 1483.71 1025.349 35.25 35.08 8.983 3.47727 5.11618 32.52 1483.67 1025.341 35.55 35.38 8.970 3.47657 5.11713 32.53 1483.63 1025.348 35.85 35.68 8.959 3.47649 5.11861 32.53 1483.61 1025.358 36.15 35.98 8.948 3.47524 5.11846 32.53 1483.57 1025.359 36.45 36.28 8.934 3.47500 5.12026 32.54 1483.53 1025.371 36.75 36.57 8.925 3.47414 5.12038 32.54 1483.50 1025.373 37.05 36.87 8.917 3.47353 5.12066 32.54 1483.48 1025.376 37.35 37.17 8.913 3.47382 5.12169 32.55 1483.48 1025.383 37.65 37.47 8.906 3.47310 5.12159 32.55 1483.46 1025.384 37.95 37.77 8.896 3.47271 5.12255 32.55 1483.43 1025.391 38.25 38.06 8.886 3.47231 5.12347 32.56 1483.40 1025.398 38.55 38.36 8.874 3.47163 5.12439 32.56 1483.37 1025.405 38.85 38.66 8.862 3.47003 5.12375 32.55 1483.32 1025.403 39.15 38.96 8.858 3.46989 5.12424 32.56 1483.31 1025.407 39.45 39.26 8.852 3.46939 5.12433 32.56 1483.30 1025.409 39.75 39.56 8.845 3.46974 5.12591 32.57 1483.29 1025.419 40.05 39.85 8.837 3.46820 5.12490 32.56 1483.25 1025.415 40.35 40.15 8.829 3.46781 5.12552 32.56 1483.23 1025.420 40.65 40.45 8.817 3.46653 5.12543 32.56 1483.19 1025.421 40.95 40.75 8.804 3.46616 5.12679 32.57 1483.16 1025.431 41.25 41.05 8.783 3.46555 5.12915 32.58 1483.10 1025.446 41.55 41.35 8.766 3.46379 5.12915 32.58 1483.04 1025.447 41.85 41.64 8.742 3.46253 5.13087 32.59 1482.96 1025.459 42.15 41.94 8.702 3.45959 5.13263 32.59 1482.82 1025.471 42.45 42.24 8.662 3.45720 5.13511 32.60 1482.70 1025.488 42.75 42.54 8.629 3.45703 5.13998 32.63 1482.61 1025.517 43.05 42.84 8.600 3.45486 5.14117 32.64 1482.51 1025.526 43.35 43.13 8.570 3.45425 5.14486 32.66 1482.43 1025.548 43.62 43.40 8.548 3.45376 5.14742 32.67 1482.37 1025.564