*2026/01/16 10:37:58.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 18:09:13.000 END TIME : UTC 2025/07/22 18:09:41.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 144 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.13 2 Depth metres 0.15 42.92 3 Temperature 'deg C (ITS90)' 9.341 15.489 4 Conductivity S/m 3.46673 3.92064 5 Conductance:Specific S/m 4.83542 5.06225 6 Salinity PSS-78 31.11 32.19 7 Speed:Sound m/s 1484.53 1503.86 8 Density kg/m^3 1022.974 1025.047 $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 : 226 LATITUDE : 49 50.61150 N ! (deg min) LONGITUDE : 126 56.40700 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_180913 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 144 144 MERGEHDR 1.3 2026/01/16 10:35:48 144 144 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 144 144 CALIB 12.1 2026/01/16 10:37:22 144 144 CLEAN 5.3 2026/01/16 10:37:58 144 144 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:22 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 15.489 3.92064 4.84157 31.25 1503.86 1022.976 0.45 0.45 15.373 3.90614 4.83752 31.21 1503.46 1022.974 0.75 0.75 15.227 3.89098 4.83629 31.19 1502.98 1022.993 1.05 1.05 15.134 3.90365 4.86328 31.38 1502.90 1023.158 1.35 1.35 15.100 3.89164 4.85246 31.30 1502.71 1023.105 1.65 1.64 15.052 3.88431 4.84906 31.27 1502.53 1023.095 1.95 1.94 15.030 3.87698 4.84265 31.22 1502.41 1023.065 2.25 2.24 14.957 3.86793 4.84010 31.20 1502.15 1023.064 2.55 2.54 14.855 3.86206 4.84509 31.23 1501.86 1023.108 2.85 2.84 14.719 3.85943 4.85847 31.31 1501.53 1023.205 3.15 3.14 14.569 3.84881 4.86336 31.34 1501.08 1023.256 3.45 3.44 14.378 3.83574 4.87042 31.37 1500.51 1023.325 3.75 3.74 14.281 3.80489 4.84317 31.17 1499.96 1023.190 4.05 4.03 14.197 3.79068 4.83542 31.11 1499.62 1023.161 4.35 4.33 14.074 3.78880 4.84823 31.19 1499.32 1023.250 4.65 4.63 13.966 3.78903 4.86201 31.28 1499.07 1023.343 4.95 4.93 13.894 3.78859 4.87040 31.33 1498.91 1023.401 5.25 5.23 13.858 3.79053 4.87737 31.38 1498.85 1023.445 5.55 5.53 13.839 3.79476 4.88527 31.44 1498.85 1023.493 5.85 5.83 13.815 3.80511 4.90159 31.55 1498.92 1023.588 6.15 6.13 13.748 3.82250 4.93256 31.77 1498.95 1023.770 6.45 6.43 13.528 3.81777 4.95457 31.91 1498.40 1023.923 6.75 6.72 13.390 3.77495 4.91663 31.62 1497.61 1023.732 7.05 7.02 13.379 3.76354 4.90310 31.52 1497.46 1023.660 7.35 7.32 13.290 3.75133 4.89861 31.48 1497.12 1023.648 7.65 7.62 13.096 3.74900 4.92048 31.62 1496.64 1023.795 7.95 7.92 12.816 3.74372 4.94995 31.81 1495.92 1023.994 8.25 8.22 12.610 3.73321 4.96307 31.88 1495.32 1024.092 8.55 8.52 12.454 3.71089 4.95392 31.80 1494.70 1024.061 8.85 8.81 12.311 3.69358 4.94968 31.76 1494.17 1024.054 9.15 9.11 12.166 3.68350 4.95544 31.78 1493.71 1024.103 9.45 9.41 11.967 3.66879 4.96227 31.81 1493.06 1024.164 9.75 9.71 11.750 3.65923 4.97857 31.91 1492.43 1024.277 10.05 10.01 11.485 3.63385 4.97992 31.89 1491.49 1024.312 10.35 10.31 11.180 3.60397 4.98055 31.86 1490.39 1024.344 10.65 10.61 11.039 3.57459 4.95933 31.69 1489.70 1024.241 10.95 10.90 10.894 3.54245 4.93461 31.50 1488.96 1024.118 11.25 11.20 10.665 3.52737 4.94520 31.55 1488.20 1024.196 11.55 11.50 10.458 3.51953 4.96299 31.65 1487.59 1024.311 11.85 11.80 10.326 3.51537 4.97558 31.72 1487.21 1024.391 12.15 12.10 10.259 3.51343 4.98231 31.76 1487.02 1024.435 12.45 12.40 10.201 3.51119 4.98728 31.79 1486.85 1024.467 12.75 12.70 10.169 3.51092 4.99154 31.81 1486.77 1024.494 13.05 12.99 10.146 3.51023 4.99372 31.82 1486.71 1024.509 13.35 13.29 10.117 3.50923 4.99655 31.84 1486.63 1024.528 13.65 13.59 10.091 3.50830 4.99888 31.85 1486.56 1024.544 13.95 13.89 10.054 3.50706 5.00234 31.87 1486.45 1024.567 14.25 14.19 10.024 3.50333 5.00133 31.86 1486.33 1024.564 14.55 14.49 10.000 3.50246 5.00348 31.87 1486.27 1024.579 14.85 14.78 9.979 3.49939 5.00219 31.86 1486.18 1024.574 15.15 15.08 9.950 3.49692 5.00271 31.86 1486.08 1024.580 15.45 15.38 9.905 3.49360 5.00443 31.87 1485.93 1024.594 15.75 15.68 9.868 3.49220 5.00778 31.89 1485.82 1024.616 16.05 15.98 9.844 3.48956 5.00747 31.88 1485.73 1024.617 16.35 16.28 9.817 3.48766 5.00854 31.89 1485.65 1024.626 16.65 16.58 9.797 3.48677 5.01013 31.89 1485.59 1024.637 16.95 16.87 9.772 3.48655 5.01346 31.91 1485.53 1024.658 17.25 17.17 9.759 3.48638 5.01510 31.92 1485.50 1024.669 17.55 17.47 9.747 3.48567 5.01577 31.93 1485.46 1024.675 17.85 17.77 9.736 3.48434 5.01550 31.92 1485.42 1024.675 18.15 18.07 9.728 3.48431 5.01654 31.93 1485.41 1024.683 18.45 18.37 9.716 3.48404 5.01798 31.94 1485.38 1024.693 18.75 18.66 9.710 3.48323 5.01766 31.93 1485.35 1024.692 19.05 18.96 9.707 3.48370 5.01871 31.94 1485.36 1024.700 19.35 19.26 9.707 3.48379 5.01890 31.94 1485.36 1024.702 19.65 19.56 9.699 3.48399 5.02032 31.95 1485.35 1024.711 19.95 19.86 9.683 3.48386 5.02244 31.96 1485.31 1024.725 20.25 20.16 9.671 3.48234 5.02201 31.96 1485.27 1024.725 20.55 20.46 9.669 3.48169 5.02138 31.95 1485.26 1024.723 20.85 20.75 9.660 3.48089 5.02154 31.95 1485.23 1024.725 21.15 21.05 9.641 3.47973 5.02259 31.96 1485.17 1024.734 21.45 21.35 9.622 3.47827 5.02318 31.96 1485.11 1024.739 21.75 21.65 9.611 3.47791 5.02429 31.97 1485.08 1024.747 22.05 21.95 9.599 3.47732 5.02516 31.97 1485.05 1024.754 22.35 22.25 9.591 3.47692 5.02577 31.97 1485.03 1024.759 22.65 22.54 9.582 3.47624 5.02606 31.98 1485.00 1024.762 22.95 22.84 9.578 3.47616 5.02658 31.98 1485.00 1024.767 23.25 23.14 9.572 3.47566 5.02676 31.98 1484.98 1024.769 23.55 23.44 9.564 3.47560 5.02780 31.98 1484.96 1024.777 23.85 23.74 9.549 3.47581 5.03028 32.00 1484.93 1024.792 24.15 24.04 9.540 3.47432 5.02946 31.99 1484.89 1024.790 24.45 24.33 9.539 3.47320 5.02793 31.98 1484.88 1024.782 24.75 24.63 9.535 3.47351 5.02892 31.99 1484.88 1024.789 25.05 24.93 9.525 3.47390 5.03106 32.00 1484.86 1024.803 25.35 25.23 9.513 3.47580 5.03552 32.03 1484.86 1024.830 25.65 25.53 9.503 3.47460 5.03519 32.03 1484.83 1024.830 25.95 25.83 9.495 3.47249 5.03336 32.01 1484.78 1024.821 26.25 26.12 9.483 3.47074 5.03260 32.01 1484.73 1024.819 26.55 26.42 9.468 3.46962 5.03306 32.01 1484.69 1024.823 26.85 26.72 9.456 3.46895 5.03383 32.01 1484.65 1024.830 27.15 27.02 9.446 3.46793 5.03386 32.01 1484.62 1024.832 27.45 27.32 9.436 3.46738 5.03447 32.01 1484.59 1024.837 27.75 27.62 9.429 3.46732 5.03550 32.02 1484.58 1024.844 28.05 27.92 9.420 3.46689 5.03610 32.02 1484.55 1024.849 28.35 28.21 9.413 3.46697 5.03726 32.03 1484.54 1024.857 28.65 28.51 9.409 3.46673 5.03757 32.03 1484.53 1024.860 28.95 28.81 9.412 3.46731 5.03798 32.03 1484.55 1024.864 29.25 29.11 9.407 3.46827 5.04007 32.05 1484.56 1024.877 29.55 29.41 9.412 3.47031 5.04230 32.06 1484.60 1024.890 29.85 29.71 9.420 3.47260 5.04439 32.08 1484.65 1024.902 30.15 30.00 9.437 3.47670 5.04787 32.11 1484.75 1024.922 30.45 30.30 9.446 3.47718 5.04726 32.10 1484.79 1024.919 30.75 30.60 9.455 3.47762 5.04663 32.10 1484.82 1024.917 31.05 30.90 9.461 3.47766 5.04573 32.09 1484.84 1024.913 31.35 31.20 9.471 3.47868 5.04584 32.10 1484.88 1024.914 31.65 31.50 9.479 3.48012 5.04666 32.10 1484.93 1024.919 31.95 31.79 9.488 3.48163 5.04764 32.11 1484.97 1024.926 32.25 32.09 9.496 3.48160 5.04641 32.10 1485.00 1024.920 32.55 32.39 9.502 3.48278 5.04728 32.11 1485.03 1024.925 32.85 32.69 9.503 3.48401 5.04879 32.12 1485.06 1024.935 33.15 32.99 9.497 3.48565 5.05209 32.14 1485.07 1024.955 33.45 33.29 9.484 3.48554 5.05385 32.15 1485.04 1024.966 33.75 33.58 9.476 3.48393 5.05276 32.14 1485.00 1024.962 34.05 33.88 9.474 3.48183 5.04996 32.12 1484.97 1024.948 34.35 34.18 9.451 3.47988 5.05052 32.12 1484.90 1024.953 34.65 34.48 9.426 3.47729 5.05037 32.12 1484.80 1024.955 34.95 34.78 9.413 3.47575 5.05001 32.12 1484.76 1024.955 35.25 35.08 9.403 3.47457 5.04985 32.11 1484.72 1024.956 35.55 35.37 9.387 3.47339 5.05036 32.11 1484.67 1024.961 35.85 35.67 9.377 3.47269 5.05087 32.12 1484.64 1024.965 36.15 35.97 9.365 3.47273 5.05266 32.13 1484.61 1024.977 36.45 36.27 9.361 3.47262 5.05311 32.13 1484.61 1024.981 36.75 36.57 9.357 3.47259 5.05375 32.13 1484.60 1024.986 37.05 36.87 9.349 3.47230 5.05439 32.14 1484.58 1024.991 37.35 37.16 9.343 3.47231 5.05529 32.14 1484.57 1024.998 37.65 37.46 9.341 3.47235 5.05562 32.14 1484.57 1025.001 37.95 37.76 9.344 3.47232 5.05529 32.14 1484.58 1025.000 38.25 38.06 9.342 3.47228 5.05545 32.14 1484.58 1025.003 38.55 38.36 9.343 3.47322 5.05662 32.15 1484.60 1025.010 38.85 38.66 9.342 3.47376 5.05755 32.16 1484.61 1025.017 39.15 38.95 9.344 3.47476 5.05876 32.17 1484.63 1025.025 39.45 39.25 9.352 3.47556 5.05873 32.17 1484.67 1025.025 39.75 39.55 9.359 3.47631 5.05880 32.17 1484.70 1025.026 40.05 39.85 9.368 3.47747 5.05914 32.17 1484.74 1025.029 40.35 40.15 9.376 3.48035 5.06225 32.19 1484.80 1025.047 40.65 40.45 9.390 3.48152 5.06178 32.19 1484.86 1025.045 40.95 40.74 9.404 3.48240 5.06103 32.19 1484.91 1025.042 41.25 41.04 9.409 3.48306 5.06128 32.19 1484.94 1025.044 41.55 41.34 9.410 3.48121 5.05837 32.17 1484.92 1025.029 41.85 41.64 9.407 3.48094 5.05844 32.17 1484.92 1025.031 42.15 41.94 9.403 3.48178 5.06024 32.18 1484.92 1025.042 42.45 42.24 9.408 3.48254 5.06065 32.19 1484.95 1025.046 42.75 42.53 9.398 3.48007 5.05847 32.17 1484.90 1025.035 43.13 42.92 9.397 3.48029 5.05904 32.17 1484.90 1025.040