*2026/01/16 10:37:49.95 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 22:10:54.000 END TIME : UTC 2025/03/11 22:11:07.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 69 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.52 2 Depth metres 0.15 20.49 3 Temperature 'deg C (ITS90)' 8.359 8.415 4 Conductivity S/m 2.83423 2.95099 5 Conductance:Specific S/m 4.24807 4.41597 6 Salinity PSS-78 26.41 27.57 7 Speed:Sound m/s 1473.24 1475.19 8 Density kg/m^3 1020.494 1021.48 $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 : 82 LATITUDE : 49 14.22590 N ! (deg min) LONGITUDE : 125 54.81340 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_221054 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 69 69 MERGEHDR 1.3 2026/01/16 10:35:41 69 69 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 69 69 CALIB 12.1 2026/01/16 10:37:13 69 69 CLEAN 5.3 2026/01/16 10:37:49 69 69 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 8.360 2.83533 4.24955 26.42 1473.26 1020.501 0.45 0.45 8.359 2.83423 4.24807 26.41 1473.24 1020.494 0.75 0.75 8.359 2.83539 4.24985 26.43 1473.26 1020.505 1.05 1.05 8.360 2.85156 4.27396 26.59 1473.47 1020.636 1.35 1.35 8.361 2.86818 4.29868 26.76 1473.69 1020.770 1.65 1.65 8.366 2.87982 4.31546 26.88 1473.86 1020.861 1.95 1.95 8.374 2.89333 4.33471 27.01 1474.06 1020.965 2.25 2.25 8.391 2.91106 4.35904 27.18 1474.34 1021.097 2.55 2.55 8.404 2.92158 4.37313 27.28 1474.51 1021.173 2.85 2.85 8.406 2.92390 4.37635 27.30 1474.55 1021.192 3.15 3.15 8.407 2.92543 4.37847 27.31 1474.58 1021.204 3.45 3.44 8.408 2.92763 4.38160 27.33 1474.62 1021.223 3.75 3.74 8.409 2.92767 4.38158 27.33 1474.62 1021.224 4.05 4.04 8.409 2.92853 4.38282 27.34 1474.64 1021.232 4.35 4.34 8.411 2.92768 4.38134 27.33 1474.64 1021.225 4.65 4.64 8.411 2.92877 4.38291 27.34 1474.66 1021.235 4.95 4.94 8.412 2.93145 4.38689 27.37 1474.70 1021.257 5.25 5.24 8.413 2.93527 4.39241 27.41 1474.75 1021.288 5.55 5.54 8.415 2.93610 4.39343 27.42 1474.77 1021.295 5.85 5.84 8.415 2.93607 4.39338 27.42 1474.78 1021.296 6.15 6.14 8.414 2.93634 4.39384 27.42 1474.79 1021.300 6.45 6.44 8.414 2.93710 4.39495 27.43 1474.80 1021.307 6.75 6.74 8.414 2.93807 4.39650 27.44 1474.82 1021.317 7.05 7.04 8.414 2.93707 4.39493 27.43 1474.81 1021.310 7.35 7.34 8.414 2.93736 4.39540 27.43 1474.82 1021.313 7.65 7.64 8.414 2.93805 4.39645 27.44 1474.83 1021.320 7.95 7.94 8.414 2.94021 4.39965 27.46 1474.86 1021.339 8.25 8.24 8.415 2.94049 4.39998 27.46 1474.87 1021.342 8.55 8.54 8.414 2.94137 4.40145 27.47 1474.89 1021.351 8.85 8.83 8.413 2.94150 4.40168 27.47 1474.89 1021.354 9.15 9.13 8.413 2.94218 4.40277 27.48 1474.90 1021.361 9.45 9.43 8.413 2.94291 4.40385 27.49 1474.92 1021.368 9.75 9.73 8.413 2.94257 4.40336 27.48 1474.92 1021.367 10.05 10.03 8.412 2.94211 4.40272 27.48 1474.92 1021.365 10.35 10.33 8.413 2.94314 4.40423 27.49 1474.93 1021.374 10.65 10.63 8.412 2.94432 4.40603 27.50 1474.95 1021.385 10.95 10.93 8.412 2.94456 4.40640 27.50 1474.96 1021.388 11.25 11.23 8.413 2.94438 4.40605 27.50 1474.96 1021.388 11.55 11.53 8.412 2.94513 4.40729 27.51 1474.98 1021.396 11.85 11.83 8.413 2.94528 4.40740 27.51 1474.99 1021.397 12.15 12.13 8.412 2.94516 4.40727 27.51 1474.99 1021.398 12.45 12.43 8.411 2.94596 4.40861 27.52 1475.00 1021.407 12.75 12.73 8.412 2.94612 4.40878 27.52 1475.01 1021.409 13.05 13.03 8.412 2.94589 4.40839 27.52 1475.01 1021.408 13.35 13.33 8.412 2.94593 4.40854 27.52 1475.01 1021.410 13.65 13.63 8.411 2.94544 4.40783 27.51 1475.01 1021.408 13.95 13.92 8.412 2.94557 4.40798 27.51 1475.02 1021.410 14.25 14.22 8.412 2.94528 4.40756 27.51 1475.02 1021.409 14.55 14.52 8.411 2.94551 4.40794 27.51 1475.03 1021.412 14.85 14.82 8.411 2.94604 4.40873 27.52 1475.04 1021.418 15.15 15.12 8.412 2.94692 4.41003 27.53 1475.05 1021.426 15.45 15.42 8.412 2.94741 4.41068 27.53 1475.07 1021.431 15.75 15.72 8.412 2.94710 4.41019 27.53 1475.07 1021.429 16.05 16.02 8.411 2.94703 4.41024 27.53 1475.07 1021.431 16.35 16.32 8.412 2.94753 4.41083 27.53 1475.08 1021.435 16.65 16.62 8.413 2.94757 4.41087 27.53 1475.09 1021.437 16.95 16.92 8.411 2.94776 4.41130 27.53 1475.09 1021.440 17.25 17.22 8.412 2.94810 4.41171 27.54 1475.10 1021.444 17.55 17.52 8.412 2.94893 4.41293 27.55 1475.12 1021.452 17.85 17.82 8.412 2.94873 4.41265 27.54 1475.12 1021.452 18.15 18.12 8.412 2.94914 4.41327 27.55 1475.13 1021.456 18.45 18.42 8.412 2.94932 4.41355 27.55 1475.14 1021.459 18.75 18.72 8.413 2.94971 4.41408 27.55 1475.15 1021.463 19.05 19.01 8.413 2.95061 4.41542 27.56 1475.17 1021.472 19.35 19.31 8.412 2.95071 4.41567 27.56 1475.17 1021.474 19.65 19.61 8.413 2.95054 4.41522 27.56 1475.18 1021.473 19.95 19.91 8.414 2.95055 4.41519 27.56 1475.18 1021.474 20.25 20.21 8.413 2.95099 4.41597 27.57 1475.19 1021.480 20.52 20.49 8.413 2.95061 4.41534 27.56 1475.19 1021.478