*2026/01/16 10:37:44.07 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/22 00:45:26.000 END TIME : UTC 2025/01/22 00:45:43.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 86 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.71 2 Depth metres 0.15 25.64 3 Temperature 'deg C (ITS90)' 8.897 9.107 4 Conductivity S/m 2.97908 3.13538 5 Conductance:Specific S/m 4.38689 4.59651 6 Salinity PSS-78 27.44 28.9 7 Speed:Sound m/s 1476.69 1479.54 8 Density kg/m^3 1021.215 1022.449 $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 : 13 LATITUDE : 49 12.78790 N ! (deg min) LONGITUDE : 125 56.02700 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250122_004526 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 86 86 MERGEHDR 1.3 2026/01/16 10:35:38 86 86 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 86 86 CALIB 12.1 2026/01/16 10:37:09 86 86 CLEAN 5.3 2026/01/16 10:37:44 86 86 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 8.977 2.98219 4.38856 27.45 1476.86 1021.221 0.45 0.45 8.954 2.97908 4.38689 27.44 1476.77 1021.215 0.75 0.75 8.932 2.98327 4.39593 27.50 1476.76 1021.266 1.05 1.05 8.924 2.98395 4.39804 27.51 1476.75 1021.279 1.35 1.35 8.914 2.98349 4.39858 27.52 1476.72 1021.284 1.65 1.65 8.905 2.98264 4.39850 27.51 1476.69 1021.285 1.95 1.95 8.897 2.98511 4.40321 27.55 1476.70 1021.312 2.25 2.25 8.908 2.98612 4.40330 27.55 1476.75 1021.313 2.55 2.55 8.928 2.98712 4.40219 27.54 1476.82 1021.307 2.85 2.84 8.943 2.98658 4.39936 27.52 1476.87 1021.293 3.15 3.14 8.956 2.98778 4.39950 27.53 1476.92 1021.294 3.45 3.44 8.962 2.98936 4.40107 27.54 1476.96 1021.304 3.75 3.74 8.974 2.99077 4.40161 27.54 1477.02 1021.307 4.05 4.04 8.981 2.99223 4.40286 27.55 1477.06 1021.315 4.35 4.34 8.986 2.99311 4.40349 27.56 1477.09 1021.319 4.65 4.64 8.992 2.99344 4.40311 27.56 1477.12 1021.318 4.95 4.94 8.998 2.99385 4.40300 27.56 1477.14 1021.319 5.25 5.24 8.998 2.99510 4.40485 27.57 1477.16 1021.330 5.55 5.54 9.000 2.99531 4.40481 27.57 1477.18 1021.331 5.85 5.84 9.000 2.99622 4.40614 27.58 1477.20 1021.339 6.15 6.14 9.000 2.99771 4.40840 27.59 1477.22 1021.353 6.45 6.44 9.002 2.99973 4.41106 27.61 1477.25 1021.368 6.75 6.74 9.005 3.00488 4.41827 27.66 1477.33 1021.409 7.05 7.04 9.009 3.00635 4.41995 27.67 1477.36 1021.419 7.35 7.34 9.010 3.01079 4.42634 27.72 1477.43 1021.454 7.65 7.64 9.010 3.01300 4.42957 27.74 1477.46 1021.473 7.95 7.93 9.008 3.01841 4.43773 27.80 1477.53 1021.518 8.25 8.23 9.013 3.01969 4.43903 27.80 1477.56 1021.527 8.55 8.53 9.019 3.02285 4.44290 27.83 1477.62 1021.549 8.85 8.83 9.022 3.02375 4.44379 27.84 1477.65 1021.554 9.15 9.13 9.026 3.02676 4.44773 27.87 1477.70 1021.577 9.45 9.43 9.029 3.03046 4.45276 27.90 1477.76 1021.605 9.75 9.73 9.028 3.03486 4.45937 27.95 1477.82 1021.642 10.05 10.03 9.020 3.03850 4.46572 27.99 1477.84 1021.678 10.35 10.33 9.024 3.04184 4.47019 28.02 1477.90 1021.703 10.65 10.63 9.026 3.04463 4.47399 28.05 1477.95 1021.725 10.95 10.93 9.029 3.04919 4.48031 28.09 1478.01 1021.761 11.25 11.23 9.030 3.05158 4.48369 28.11 1478.05 1021.780 11.55 11.53 9.036 3.05496 4.48789 28.14 1478.12 1021.804 11.85 11.83 9.040 3.05833 4.49231 28.18 1478.17 1021.829 12.15 12.13 9.044 3.06352 4.49929 28.22 1478.26 1021.868 12.45 12.42 9.049 3.06993 4.50807 28.29 1478.35 1021.916 12.75 12.72 9.051 3.07665 4.51776 28.35 1478.45 1021.970 13.05 13.02 9.053 3.07941 4.52147 28.38 1478.49 1021.991 13.35 13.32 9.056 3.08390 4.52763 28.42 1478.56 1022.026 13.65 13.62 9.061 3.08708 4.53166 28.45 1478.62 1022.048 13.95 13.92 9.067 3.08817 4.53251 28.46 1478.65 1022.054 14.25 14.22 9.071 3.09107 4.53616 28.48 1478.71 1022.075 14.55 14.52 9.077 3.09341 4.53886 28.50 1478.76 1022.091 14.85 14.82 9.081 3.09900 4.54650 28.56 1478.84 1022.133 15.15 15.12 9.083 3.10266 4.55168 28.59 1478.90 1022.162 15.45 15.42 9.084 3.11027 4.56262 28.67 1479.00 1022.223 15.75 15.72 9.089 3.11449 4.56810 28.71 1479.07 1022.254 16.05 16.02 9.093 3.11611 4.56996 28.72 1479.11 1022.265 16.35 16.31 9.096 3.11694 4.57087 28.73 1479.13 1022.271 16.65 16.61 9.098 3.11758 4.57153 28.73 1479.15 1022.276 16.95 16.91 9.098 3.11861 4.57295 28.74 1479.17 1022.285 17.25 17.21 9.098 3.11942 4.57424 28.75 1479.18 1022.293 17.55 17.51 9.096 3.11992 4.57522 28.76 1479.19 1022.300 17.85 17.81 9.094 3.12133 4.57751 28.77 1479.20 1022.313 18.15 18.11 9.095 3.12260 4.57929 28.78 1479.23 1022.324 18.45 18.41 9.095 3.12247 4.57907 28.78 1479.23 1022.324 18.75 18.71 9.095 3.12378 4.58100 28.79 1479.25 1022.336 19.05 19.01 9.095 3.12462 4.58226 28.80 1479.27 1022.344 19.35 19.31 9.096 3.12627 4.58447 28.82 1479.30 1022.357 19.65 19.60 9.098 3.12642 4.58443 28.82 1479.31 1022.358 19.95 19.90 9.099 3.12798 4.58663 28.83 1479.33 1022.372 20.25 20.20 9.101 3.12913 4.58800 28.84 1479.36 1022.380 20.55 20.50 9.102 3.12895 4.58759 28.84 1479.36 1022.379 20.85 20.80 9.104 3.12922 4.58777 28.84 1479.38 1022.381 21.15 21.10 9.102 3.12903 4.58773 28.84 1479.37 1022.383 21.45 21.40 9.102 3.12887 4.58748 28.84 1479.38 1022.383 21.75 21.70 9.102 3.12930 4.58813 28.84 1479.39 1022.387 22.05 22.00 9.103 3.12968 4.58862 28.85 1479.40 1022.391 22.35 22.30 9.105 3.12960 4.58823 28.84 1479.41 1022.390 22.65 22.60 9.102 3.13018 4.58948 28.85 1479.41 1022.398 22.95 22.90 9.101 3.13032 4.58978 28.85 1479.42 1022.401 23.25 23.19 9.102 3.13146 4.59125 28.87 1479.44 1022.411 23.55 23.49 9.104 3.13170 4.59144 28.87 1479.45 1022.413 23.85 23.79 9.104 3.13226 4.59223 28.87 1479.46 1022.418 24.15 24.09 9.105 3.13208 4.59184 28.87 1479.47 1022.418 24.45 24.39 9.105 3.13288 4.59296 28.88 1479.48 1022.425 24.75 24.69 9.106 3.13317 4.59327 28.88 1479.49 1022.428 25.05 24.99 9.107 3.13379 4.59406 28.88 1479.51 1022.433 25.35 25.29 9.105 3.13452 4.59545 28.89 1479.52 1022.442 25.71 25.64 9.106 3.13538 4.59651 28.90 1479.54 1022.449