*2026/01/16 10:37:55.36 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/30 19:09:31.000 END TIME : UTC 2025/05/30 19:09:53.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 115 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.44 2 Depth metres 0.15 34.35 3 Temperature 'deg C (ITS90)' 10.236 14.101 4 Conductivity S/m 0.56472 3.5108 5 Conductance:Specific S/m 0.7637 4.9564 6 Salinity PSS-78 4.17 31.56 7 Speed:Sound m/s 1460 1492.01 8 Density kg/m^3 1002.746 1024.387 $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 : 172 LATITUDE : 49 37.95570 N ! (deg min) LONGITUDE : 126 4.33950 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250530_190931 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 115 115 MERGEHDR 1.3 2026/01/16 10:35:45 115 115 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:43 115 115 CALIB 12.1 2026/01/16 10:37:18 115 115 CLEAN 5.3 2026/01/16 10:37:55 115 115 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 10:36:43 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 11.972 0.56472 0.76370 4.17 1460.00 1002.746 0.45 0.46 12.995 0.88675 1.16695 6.58 1466.65 1004.477 0.75 0.76 13.851 1.19566 1.53878 8.89 1472.43 1006.122 1.05 1.06 13.999 1.89742 2.43263 14.61 1479.65 1010.495 1.35 1.37 14.013 2.15231 2.75846 16.76 1482.21 1012.143 1.65 1.67 14.000 2.25297 2.88839 17.62 1483.18 1012.810 1.95 1.97 14.008 2.35819 3.02272 18.52 1484.26 1013.501 2.25 2.27 14.069 2.40711 3.08055 18.91 1484.93 1013.792 2.55 2.57 14.101 2.45901 3.14443 19.34 1485.54 1014.119 2.85 2.88 14.069 2.48831 3.18454 19.61 1485.75 1014.333 3.15 3.18 13.971 2.60382 3.34070 20.67 1486.66 1015.161 3.45 3.48 13.882 2.72585 3.50532 21.78 1487.66 1016.038 3.75 3.78 13.776 2.80660 3.61901 22.56 1488.21 1016.653 4.05 4.08 13.654 2.91610 3.77210 23.60 1489.03 1017.482 4.35 4.38 13.563 2.95211 3.82763 23.98 1489.17 1017.791 4.65 4.68 13.483 2.97624 3.86698 24.25 1489.21 1018.013 4.95 4.98 13.409 3.00589 3.91296 24.56 1489.34 1018.269 5.25 5.28 13.343 3.04332 3.96859 24.94 1489.56 1018.576 5.55 5.58 13.284 3.09985 4.04854 25.49 1490.01 1019.013 5.85 5.88 13.219 3.14686 4.11689 25.96 1490.35 1019.390 6.15 6.18 13.101 3.20255 4.20274 26.55 1490.65 1019.869 6.45 6.48 12.921 3.30036 4.35158 27.58 1491.26 1020.698 6.75 6.78 12.692 3.41750 4.53348 28.84 1491.97 1021.716 7.05 7.08 12.494 3.46490 4.62058 29.44 1492.01 1022.216 7.35 7.38 12.321 3.48240 4.66543 29.74 1491.78 1022.483 7.65 7.68 12.120 3.49463 4.70716 30.02 1491.42 1022.735 7.95 7.98 11.921 3.50131 4.74165 30.24 1491.00 1022.947 8.25 8.28 11.771 3.50396 4.76457 30.39 1490.66 1023.089 8.55 8.57 11.689 3.50412 4.77549 30.46 1490.46 1023.159 8.85 8.87 11.597 3.50586 4.78977 30.55 1490.26 1023.248 9.15 9.17 11.507 3.50854 4.80533 30.65 1490.07 1023.343 9.45 9.47 11.450 3.51069 4.81582 30.72 1489.95 1023.408 9.75 9.77 11.384 3.51080 4.82461 30.77 1489.79 1023.464 10.05 10.07 11.321 3.50881 4.83024 30.81 1489.62 1023.502 10.35 10.37 11.274 3.50749 4.83476 30.83 1489.49 1023.532 10.65 10.67 11.230 3.50653 4.83931 30.86 1489.37 1023.563 10.95 10.97 11.187 3.50581 4.84407 30.89 1489.26 1023.594 11.25 11.26 11.151 3.50499 4.84772 30.91 1489.16 1023.618 11.55 11.56 11.097 3.50322 4.85248 30.94 1489.01 1023.651 11.85 11.86 11.050 3.50297 4.85853 30.98 1488.89 1023.689 12.15 12.16 11.026 3.50240 4.86099 30.99 1488.83 1023.706 12.45 12.46 11.001 3.50238 4.86435 31.01 1488.77 1023.728 12.75 12.76 10.978 3.50235 4.86739 31.03 1488.72 1023.748 13.05 13.06 10.959 3.50216 4.86969 31.04 1488.67 1023.764 13.35 13.35 10.940 3.50257 4.87281 31.06 1488.64 1023.784 13.65 13.65 10.922 3.50257 4.87525 31.08 1488.60 1023.800 13.95 13.95 10.907 3.50159 4.87589 31.08 1488.55 1023.806 14.25 14.25 10.902 3.50208 4.87731 31.09 1488.55 1023.815 14.55 14.55 10.893 3.50187 4.87821 31.10 1488.53 1023.822 14.85 14.85 10.877 3.50262 4.88138 31.12 1488.50 1023.842 15.15 15.15 10.863 3.50164 4.88202 31.12 1488.46 1023.849 15.45 15.45 10.856 3.50125 4.88244 31.12 1488.44 1023.853 15.75 15.74 10.844 3.50127 4.88404 31.13 1488.42 1023.864 16.05 16.04 10.821 3.49970 4.88492 31.14 1488.34 1023.872 16.35 16.34 10.800 3.49730 4.88454 31.13 1488.27 1023.873 16.65 16.64 10.787 3.49703 4.88589 31.14 1488.24 1023.882 16.95 16.94 10.774 3.49792 4.88892 31.16 1488.22 1023.901 17.25 17.24 10.763 3.49788 4.89031 31.17 1488.20 1023.911 17.55 17.54 10.754 3.49728 4.89080 31.17 1488.17 1023.916 17.85 17.84 10.747 3.49676 4.89095 31.17 1488.15 1023.918 18.15 18.13 10.742 3.49653 4.89134 31.17 1488.14 1023.922 18.45 18.43 10.738 3.49711 4.89276 31.18 1488.14 1023.932 18.75 18.73 10.726 3.49725 4.89459 31.19 1488.12 1023.944 19.05 19.03 10.704 3.49564 4.89524 31.19 1488.05 1023.951 19.35 19.33 10.697 3.49446 4.89457 31.19 1488.02 1023.949 19.65 19.63 10.693 3.49377 4.89420 31.18 1488.01 1023.948 19.95 19.93 10.683 3.49471 4.89682 31.20 1488.00 1023.965 20.25 20.22 10.676 3.49507 4.89841 31.21 1487.99 1023.975 20.55 20.52 10.672 3.49595 4.90009 31.22 1487.99 1023.986 20.85 20.82 10.660 3.49531 4.90089 31.23 1487.96 1023.993 21.15 21.12 10.636 3.49358 4.90173 31.23 1487.88 1024.000 21.45 21.42 10.618 3.49049 4.89991 31.22 1487.80 1023.993 21.75 21.72 10.607 3.48638 4.89559 31.18 1487.73 1023.972 22.05 22.02 10.591 3.48584 4.89709 31.19 1487.69 1023.982 22.35 22.31 10.589 3.48872 4.90138 31.22 1487.73 1024.007 22.65 22.61 10.594 3.49204 4.90539 31.25 1487.78 1024.030 22.95 22.91 10.603 3.49347 4.90621 31.26 1487.83 1024.035 23.25 23.21 10.597 3.49523 4.90946 31.28 1487.84 1024.055 23.55 23.51 10.575 3.49180 4.90762 31.26 1487.75 1024.048 23.85 23.81 10.559 3.48864 4.90543 31.25 1487.67 1024.038 24.15 24.11 10.541 3.48958 4.90928 31.27 1487.64 1024.062 24.45 24.41 10.533 3.49260 4.91462 31.31 1487.66 1024.093 24.75 24.70 10.520 3.49031 4.91319 31.30 1487.61 1024.088 25.05 25.00 10.505 3.48902 4.91341 31.30 1487.56 1024.091 25.35 25.30 10.489 3.48890 4.91541 31.31 1487.52 1024.105 25.65 25.60 10.471 3.48966 4.91898 31.33 1487.49 1024.127 25.95 25.90 10.459 3.48895 4.91972 31.33 1487.45 1024.133 26.25 26.20 10.440 3.48783 4.92072 31.34 1487.40 1024.142 26.55 26.50 10.422 3.48630 4.92107 31.34 1487.34 1024.146 26.85 26.79 10.413 3.48586 4.92177 31.34 1487.31 1024.152 27.15 27.09 10.410 3.48640 4.92293 31.35 1487.32 1024.160 27.45 27.39 10.408 3.48585 4.92247 31.35 1487.31 1024.159 27.75 27.69 10.398 3.48716 4.92565 31.37 1487.31 1024.178 28.05 27.99 10.391 3.48938 4.92971 31.40 1487.32 1024.202 28.35 28.29 10.389 3.48931 4.92994 31.40 1487.32 1024.205 28.65 28.59 10.386 3.48989 4.93112 31.41 1487.32 1024.213 28.95 28.88 10.378 3.49016 4.93260 31.41 1487.31 1024.223 29.25 29.18 10.365 3.49050 4.93493 31.43 1487.29 1024.238 29.55 29.48 10.350 3.48960 4.93586 31.43 1487.24 1024.245 29.85 29.78 10.328 3.48874 4.93758 31.44 1487.18 1024.258 30.15 30.08 10.311 3.48854 4.93971 31.46 1487.14 1024.272 30.45 30.38 10.302 3.48789 4.94014 31.46 1487.11 1024.276 30.75 30.68 10.299 3.48878 4.94176 31.47 1487.12 1024.287 31.05 30.97 10.298 3.48879 4.94185 31.47 1487.12 1024.288 31.35 31.27 10.297 3.48827 4.94134 31.47 1487.12 1024.287 31.65 31.57 10.295 3.48919 4.94285 31.48 1487.13 1024.297 31.95 31.87 10.289 3.48880 4.94320 31.48 1487.11 1024.300 32.25 32.17 10.282 3.48949 4.94508 31.49 1487.11 1024.312 32.55 32.47 10.280 3.49002 4.94617 31.50 1487.12 1024.320 32.85 32.77 10.275 3.49099 4.94826 31.51 1487.12 1024.333 33.15 33.06 10.264 3.49185 4.95099 31.53 1487.11 1024.350 33.45 33.36 10.258 3.49343 4.95409 31.55 1487.12 1024.369 33.75 33.66 10.255 3.49270 4.95343 31.54 1487.11 1024.367 34.05 33.96 10.248 3.49232 4.95397 31.55 1487.09 1024.371 34.44 34.35 10.236 3.49289 4.95640 31.56 1487.07 1024.387