*2026/01/16 10:37:49.98 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 22:42:14.000 END TIME : UTC 2025/03/11 22:42:30.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.98 2 Depth metres 0.15 24.93 3 Temperature 'deg C (ITS90)' 8.351 8.413 4 Conductivity S/m 2.73466 3.00003 5 Conductance:Specific S/m 4.09984 4.4908 6 Salinity PSS-78 25.4 28.08 7 Speed:Sound m/s 1471.96 1475.86 8 Density kg/m^3 1019.701 1021.904 $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 : 83 LATITUDE : 49 12.66440 N ! (deg min) LONGITUDE : 125 56.06980 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_224214 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 84 84 MERGEHDR 1.3 2026/01/16 10:35:41 84 84 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 84 84 CALIB 12.1 2026/01/16 10:37:13 84 84 CLEAN 5.3 2026/01/16 10:37:49 84 84 $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 8.351 2.73466 4.09984 25.40 1471.96 1019.701 0.45 0.45 8.361 2.78394 4.17247 25.90 1472.62 1020.090 0.75 0.75 8.365 2.82127 4.22785 26.28 1473.10 1020.387 1.05 1.05 8.366 2.82801 4.23789 26.34 1473.19 1020.442 1.35 1.35 8.366 2.83405 4.24695 26.41 1473.28 1020.492 1.65 1.65 8.365 2.84036 4.25656 26.47 1473.36 1020.545 1.95 1.95 8.362 2.84218 4.25961 26.49 1473.38 1020.562 2.25 2.25 8.364 2.84894 4.26947 26.56 1473.47 1020.617 2.55 2.55 8.369 2.85535 4.27850 26.62 1473.57 1020.666 2.85 2.85 8.373 2.86385 4.29069 26.71 1473.70 1020.733 3.15 3.15 8.374 2.87151 4.30196 26.78 1473.80 1020.794 3.45 3.45 8.378 2.87758 4.31063 26.84 1473.89 1020.842 3.75 3.75 8.383 2.88758 4.32489 26.94 1474.04 1020.920 4.05 4.05 8.388 2.89971 4.34241 27.06 1474.21 1021.015 4.35 4.34 8.394 2.90332 4.34712 27.10 1474.28 1021.041 4.65 4.64 8.399 2.91084 4.35770 27.17 1474.39 1021.099 4.95 4.94 8.402 2.91579 4.36465 27.22 1474.47 1021.138 5.25 5.24 8.405 2.91788 4.36749 27.24 1474.51 1021.154 5.55 5.54 8.405 2.91963 4.36999 27.25 1474.54 1021.169 5.85 5.84 8.406 2.92009 4.37061 27.26 1474.55 1021.174 6.15 6.14 8.407 2.92052 4.37116 27.26 1474.56 1021.178 6.45 6.44 8.409 2.92647 4.37970 27.32 1474.65 1021.225 6.75 6.74 8.410 2.93670 4.39491 27.43 1474.79 1021.308 7.05 7.04 8.410 2.93847 4.39761 27.44 1474.81 1021.324 7.35 7.34 8.410 2.93984 4.39962 27.46 1474.84 1021.336 7.65 7.64 8.410 2.94190 4.40271 27.48 1474.87 1021.354 7.95 7.94 8.410 2.94302 4.40442 27.49 1474.89 1021.365 8.25 8.24 8.411 2.94300 4.40428 27.49 1474.89 1021.365 8.55 8.54 8.410 2.94280 4.40408 27.49 1474.89 1021.365 8.85 8.84 8.412 2.93998 4.39960 27.46 1474.87 1021.343 9.15 9.14 8.412 2.94179 4.40225 27.48 1474.90 1021.358 9.45 9.44 8.412 2.94151 4.40191 27.47 1474.90 1021.358 9.75 9.73 8.412 2.94590 4.40848 27.52 1474.96 1021.394 10.05 10.03 8.412 2.94575 4.40825 27.52 1474.96 1021.394 10.35 10.33 8.412 2.94552 4.40781 27.51 1474.96 1021.393 10.65 10.63 8.413 2.94574 4.40812 27.52 1474.97 1021.396 10.95 10.93 8.412 2.94278 4.40375 27.49 1474.94 1021.374 11.25 11.23 8.412 2.94542 4.40771 27.51 1474.97 1021.397 11.55 11.53 8.412 2.94597 4.40856 27.52 1474.99 1021.402 11.85 11.83 8.412 2.94663 4.40952 27.52 1475.00 1021.409 12.15 12.13 8.412 2.94680 4.40973 27.53 1475.01 1021.411 12.45 12.43 8.411 2.94777 4.41136 27.54 1475.02 1021.421 12.75 12.73 8.411 2.94791 4.41160 27.54 1475.03 1021.424 13.05 13.03 8.412 2.94831 4.41204 27.54 1475.04 1021.428 13.35 13.33 8.411 2.94903 4.41324 27.55 1475.05 1021.435 13.65 13.63 8.411 2.94938 4.41372 27.55 1475.06 1021.439 13.95 13.93 8.411 2.94900 4.41316 27.55 1475.06 1021.438 14.25 14.23 8.411 2.94778 4.41137 27.54 1475.05 1021.429 14.55 14.53 8.411 2.94826 4.41205 27.54 1475.06 1021.434 14.85 14.82 8.411 2.94971 4.41426 27.56 1475.08 1021.447 15.15 15.12 8.411 2.94941 4.41387 27.55 1475.08 1021.447 15.45 15.42 8.412 2.94933 4.41360 27.55 1475.09 1021.446 15.75 15.72 8.412 2.94931 4.41356 27.55 1475.10 1021.447 16.05 16.02 8.411 2.94997 4.41463 27.56 1475.11 1021.455 16.35 16.32 8.412 2.94988 4.41440 27.56 1475.11 1021.455 16.65 16.62 8.412 2.94992 4.41449 27.56 1475.12 1021.456 16.95 16.92 8.411 2.94933 4.41368 27.55 1475.11 1021.453 17.25 17.22 8.412 2.94998 4.41462 27.56 1475.13 1021.460 17.55 17.52 8.411 2.95162 4.41712 27.57 1475.15 1021.474 17.85 17.82 8.411 2.95166 4.41722 27.57 1475.16 1021.476 18.15 18.12 8.411 2.95197 4.41770 27.58 1475.16 1021.480 18.45 18.42 8.410 2.95213 4.41798 27.58 1475.17 1021.483 18.75 18.72 8.410 2.95426 4.42121 27.60 1475.20 1021.502 19.05 19.02 8.410 2.95434 4.42137 27.60 1475.21 1021.504 19.35 19.32 8.410 2.95668 4.42486 27.63 1475.24 1021.524 19.65 19.61 8.410 2.95603 4.42392 27.62 1475.24 1021.520 19.95 19.91 8.409 2.95523 4.42279 27.61 1475.23 1021.515 20.25 20.21 8.410 2.95628 4.42424 27.62 1475.25 1021.524 20.55 20.51 8.410 2.95840 4.42746 27.64 1475.28 1021.543 20.85 20.81 8.410 2.95953 4.42913 27.66 1475.30 1021.553 21.15 21.11 8.409 2.96093 4.43139 27.67 1475.32 1021.567 21.45 21.41 8.408 2.96307 4.43461 27.69 1475.35 1021.586 21.75 21.71 8.408 2.96626 4.43945 27.73 1475.39 1021.613 22.05 22.01 8.407 2.97457 4.45203 27.81 1475.50 1021.682 22.35 22.31 8.406 2.97833 4.45774 27.85 1475.55 1021.714 22.65 22.61 8.406 2.98367 4.46574 27.91 1475.62 1021.759 22.95 22.91 8.406 2.98535 4.46834 27.92 1475.65 1021.774 23.25 23.21 8.404 2.98775 4.47210 27.95 1475.68 1021.796 23.55 23.51 8.403 2.98947 4.47481 27.97 1475.70 1021.812 23.85 23.81 8.403 2.99314 4.48040 28.01 1475.75 1021.843 24.15 24.10 8.403 2.99278 4.47984 28.00 1475.75 1021.841 24.45 24.40 8.403 2.99661 4.48554 28.04 1475.81 1021.873 24.75 24.70 8.402 2.99951 4.48997 28.07 1475.85 1021.899 24.98 24.93 8.402 3.00003 4.49080 28.08 1475.86 1021.904