*2026/01/16 09:57:48.30 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/22 21:49:28.000 END TIME : UTC 2024/04/22 21:49:46.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 95 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.31 2 Depth metres 0.15 28.24 3 Temperature 'deg C (ITS90)' 10.299 11.861 4 Conductivity S/m 0.90672 3.5079 5 Conductance:Specific S/m 1.23196 4.96847 6 Salinity PSS-78 6.96 31.66 7 Speed:Sound m/s 1462.71 1487.3 8 Density kg/m^3 1004.927 1024.416 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 64 LATITUDE : 49 11.32010 N ! (deg min) LONGITUDE : 124 49.34420 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240422_214928 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 95 95 MERGEHDR 1.3 2026/01/16 09:53:48 95 95 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 95 95 CALIB 12.1 2026/01/16 09:56:47 95 95 CLEAN 5.3 2026/01/16 09:57:48 95 95 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:47 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 09:57:46 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 11.800 0.90672 1.23196 6.96 1462.71 1004.927 0.45 0.46 11.861 1.08250 1.46835 8.41 1464.68 1006.042 0.75 0.76 11.814 1.30670 1.77472 10.32 1466.79 1007.526 1.05 1.06 11.568 1.74976 2.39245 14.26 1470.59 1010.607 1.35 1.37 11.431 2.36518 3.24606 19.89 1476.81 1014.981 1.65 1.67 11.393 2.47041 3.39403 20.88 1477.86 1015.757 1.95 1.97 11.377 2.51611 3.45835 21.32 1478.33 1016.097 2.25 2.27 11.310 2.55956 3.52455 21.76 1478.62 1016.452 2.55 2.57 11.277 2.58691 3.56553 22.03 1478.83 1016.672 2.85 2.87 11.253 2.61555 3.60731 22.32 1479.09 1016.895 3.15 3.17 11.204 2.64423 3.65181 22.62 1479.28 1017.136 3.45 3.47 11.163 2.66776 3.68850 22.86 1479.43 1017.335 3.75 3.77 11.140 2.67781 3.70472 22.97 1479.48 1017.424 4.05 4.07 11.131 2.68866 3.72073 23.08 1479.58 1017.511 4.35 4.37 11.111 2.70325 3.74301 23.23 1479.69 1017.632 4.65 4.67 11.081 2.74072 3.79802 23.60 1480.04 1017.927 4.95 4.97 11.051 2.80298 3.88758 24.21 1480.66 1018.407 5.25 5.27 11.008 2.88785 4.01005 25.05 1481.52 1019.065 5.55 5.57 10.962 2.93808 4.08497 25.56 1481.97 1019.471 5.85 5.87 10.925 3.00189 4.17794 26.20 1482.61 1019.975 6.15 6.17 10.891 3.02696 4.21685 26.47 1482.82 1020.188 6.45 6.47 10.858 3.04739 4.24924 26.69 1482.97 1020.367 6.75 6.77 10.800 3.10539 4.33708 27.29 1483.49 1020.847 7.05 7.07 10.742 3.16855 4.43255 27.95 1484.08 1021.370 7.35 7.37 10.658 3.22967 4.52869 28.62 1484.58 1021.900 7.65 7.67 10.604 3.29806 4.63157 29.33 1485.25 1022.466 7.95 7.97 10.572 3.35401 4.71438 29.91 1485.84 1022.922 8.25 8.27 10.540 3.40839 4.79521 30.47 1486.41 1023.368 8.55 8.57 10.504 3.45911 4.87138 31.01 1486.93 1023.791 8.85 8.87 10.466 3.46709 4.88790 31.12 1486.94 1023.886 9.15 9.16 10.447 3.47158 4.89691 31.18 1486.95 1023.938 9.45 9.46 10.436 3.47267 4.89992 31.20 1486.94 1023.957 9.75 9.76 10.429 3.47339 4.90187 31.21 1486.93 1023.969 10.05 10.06 10.428 3.47393 4.90274 31.22 1486.94 1023.975 10.35 10.36 10.428 3.47461 4.90382 31.22 1486.95 1023.982 10.65 10.66 10.427 3.47550 4.90512 31.23 1486.97 1023.991 10.95 10.96 10.423 3.47643 4.90708 31.25 1486.97 1024.003 11.25 11.26 10.418 3.47701 4.90852 31.26 1486.97 1024.013 11.55 11.55 10.410 3.47818 4.91127 31.27 1486.97 1024.030 11.85 11.85 10.402 3.48159 4.91718 31.32 1487.00 1024.064 12.15 12.15 10.394 3.48260 4.91971 31.33 1486.99 1024.080 12.45 12.45 10.390 3.48389 4.92211 31.35 1487.00 1024.095 12.75 12.75 10.390 3.48519 4.92392 31.36 1487.02 1024.106 13.05 13.05 10.387 3.48617 4.92572 31.37 1487.03 1024.117 13.35 13.35 10.381 3.48647 4.92706 31.38 1487.02 1024.126 13.65 13.64 10.378 3.48751 4.92895 31.40 1487.03 1024.138 13.95 13.94 10.377 3.48816 4.93005 31.40 1487.04 1024.146 14.25 14.24 10.373 3.48796 4.93028 31.40 1487.04 1024.149 14.55 14.54 10.370 3.48855 4.93146 31.41 1487.04 1024.156 14.85 14.84 10.369 3.48951 4.93306 31.42 1487.05 1024.167 15.15 15.14 10.373 3.49004 4.93321 31.42 1487.08 1024.168 15.45 15.44 10.375 3.49080 4.93397 31.43 1487.10 1024.174 15.75 15.73 10.372 3.49135 4.93521 31.44 1487.10 1024.182 16.05 16.03 10.368 3.49189 4.93659 31.45 1487.10 1024.191 16.35 16.33 10.366 3.49148 4.93622 31.44 1487.09 1024.191 16.65 16.63 10.375 3.49241 4.93623 31.45 1487.13 1024.191 16.95 16.93 10.366 3.49428 4.94014 31.47 1487.14 1024.215 17.25 17.23 10.372 3.49621 4.94200 31.49 1487.18 1024.226 17.55 17.53 10.363 3.49707 4.94452 31.50 1487.17 1024.242 17.85 17.82 10.347 3.49988 4.95074 31.54 1487.17 1024.278 18.15 18.12 10.321 3.50044 4.95516 31.57 1487.12 1024.306 18.45 18.42 10.319 3.50045 4.95552 31.57 1487.12 1024.309 18.75 18.72 10.322 3.50049 4.95510 31.57 1487.13 1024.308 19.05 19.02 10.322 3.50064 4.95535 31.57 1487.14 1024.311 19.35 19.32 10.322 3.50139 4.95635 31.58 1487.15 1024.317 19.65 19.62 10.317 3.50130 4.95699 31.58 1487.14 1024.323 19.95 19.91 10.310 3.50180 4.95865 31.59 1487.14 1024.333 20.25 20.21 10.314 3.50175 4.95806 31.59 1487.15 1024.331 20.55 20.51 10.317 3.50271 4.95900 31.60 1487.17 1024.337 20.85 20.81 10.311 3.50259 4.95967 31.60 1487.16 1024.343 21.15 21.11 10.311 3.50261 4.95968 31.60 1487.17 1024.344 21.45 21.41 10.310 3.50239 4.95947 31.60 1487.17 1024.344 21.75 21.71 10.312 3.50304 4.96011 31.60 1487.18 1024.349 22.05 22.00 10.309 3.50364 4.96140 31.61 1487.19 1024.358 22.35 22.30 10.311 3.50372 4.96123 31.61 1487.20 1024.358 22.65 22.60 10.310 3.50278 4.96006 31.60 1487.19 1024.353 22.95 22.90 10.314 3.50374 4.96083 31.61 1487.22 1024.358 23.25 23.20 10.303 3.50336 4.96188 31.61 1487.19 1024.366 23.55 23.50 10.303 3.50263 4.96087 31.61 1487.18 1024.361 23.85 23.80 10.308 3.50393 4.96200 31.62 1487.22 1024.369 24.15 24.09 10.313 3.50507 4.96288 31.62 1487.25 1024.374 24.45 24.39 10.303 3.50445 4.96334 31.62 1487.22 1024.379 24.75 24.69 10.302 3.50513 4.96446 31.63 1487.23 1024.386 25.05 24.99 10.311 3.50562 4.96399 31.63 1487.26 1024.384 25.35 25.29 10.306 3.50568 4.96471 31.63 1487.26 1024.390 25.65 25.59 10.305 3.50671 4.96624 31.64 1487.27 1024.400 25.95 25.89 10.304 3.50726 4.96717 31.65 1487.28 1024.406 26.25 26.18 10.304 3.50751 4.96758 31.65 1487.29 1024.410 26.55 26.48 10.302 3.50790 4.96847 31.66 1487.29 1024.416 26.85 26.78 10.303 3.50780 4.96817 31.66 1487.30 1024.416 27.15 27.08 10.303 3.50711 4.96711 31.65 1487.30 1024.411 27.45 27.38 10.305 3.50573 4.96496 31.64 1487.29 1024.400 27.75 27.68 10.303 3.50559 4.96501 31.64 1487.29 1024.402 28.05 27.98 10.299 3.50556 4.96552 31.64 1487.28 1024.406 28.31 28.24 10.302 3.50550 4.96496 31.63 1487.29 1024.404