*2026/01/16 09:47:05.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 21:16:57.000 END TIME : UTC 2023/12/01 21:17:09.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 65 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.39 2 Depth metres 0.15 19.38 3 Temperature 'deg C (ITS90)' 11.099 11.795 4 Conductivity S/m 2.83396 3.1638 5 Conductance:Specific S/m 3.92529 4.30856 6 Salinity PSS-78 24.48 27.18 7 Speed:Sound m/s 1481.08 1486.83 8 Density kg/m^3 1018.584 1020.659 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 97 LATITUDE : 49 10.91150 N ! (deg min) LONGITUDE : 125 46.50050 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_211657 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 65 65 MERGEHDR 1.3 2026/01/15 13:41:48 65 65 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 65 65 CALIB 12.1 2026/01/16 09:46:09 65 65 CLEAN 5.3 2026/01/16 09:47:05 65 65 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:09 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 09:47:01 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 11.113 2.84771 3.94275 24.60 1481.27 1018.674 0.45 0.45 11.099 2.83396 3.92529 24.48 1481.08 1018.584 0.75 0.75 11.192 2.86057 3.95189 24.67 1481.65 1018.718 1.05 1.05 11.262 2.88299 3.97525 24.83 1482.10 1018.837 1.35 1.35 11.286 2.89533 3.98965 24.94 1482.31 1018.913 1.65 1.65 11.290 2.89993 3.99554 24.98 1482.38 1018.945 1.95 1.95 11.309 2.93499 4.04168 25.30 1482.84 1019.191 2.25 2.25 11.364 2.96927 4.08265 25.58 1483.39 1019.406 2.55 2.55 11.411 2.97614 4.08692 25.62 1483.60 1019.426 2.85 2.85 11.440 2.99051 4.10337 25.73 1483.84 1019.512 3.15 3.15 11.447 2.99141 4.10374 25.74 1483.88 1019.515 3.45 3.45 11.459 2.99480 4.10705 25.76 1483.95 1019.533 3.75 3.75 11.517 3.00925 4.12030 25.86 1484.28 1019.599 4.05 4.05 11.554 3.02164 4.13309 25.95 1484.53 1019.665 4.35 4.35 11.572 3.02515 4.13590 25.97 1484.62 1019.680 4.65 4.65 11.589 3.03367 4.14556 26.04 1484.77 1019.731 4.95 4.95 11.616 3.04552 4.15871 26.13 1484.98 1019.800 5.25 5.25 11.639 3.05450 4.16838 26.20 1485.15 1019.851 5.55 5.55 11.649 3.05791 4.17189 26.22 1485.22 1019.870 5.85 5.85 11.654 3.06707 4.18384 26.31 1485.34 1019.935 6.15 6.15 11.692 3.08005 4.19721 26.40 1485.59 1020.005 6.45 6.45 11.728 3.10284 4.22409 26.59 1485.95 1020.147 6.75 6.75 11.744 3.11006 4.23202 26.65 1486.08 1020.189 7.05 7.05 11.744 3.11291 4.23590 26.68 1486.12 1020.211 7.35 7.35 11.744 3.11397 4.23735 26.69 1486.13 1020.220 7.65 7.65 11.748 3.11497 4.23832 26.69 1486.16 1020.226 7.95 7.95 11.751 3.11581 4.23913 26.70 1486.18 1020.232 8.25 8.25 11.744 3.11717 4.24173 26.72 1486.18 1020.248 8.55 8.55 11.749 3.11909 4.24378 26.73 1486.22 1020.260 8.85 8.85 11.753 3.12069 4.24554 26.74 1486.26 1020.270 9.15 9.15 11.754 3.12022 4.24473 26.74 1486.26 1020.267 9.45 9.45 11.761 3.12178 4.24600 26.75 1486.30 1020.274 9.75 9.75 11.772 3.12362 4.24724 26.76 1486.36 1020.281 10.05 10.05 11.784 3.12654 4.24989 26.78 1486.42 1020.295 10.35 10.35 11.790 3.12660 4.24930 26.77 1486.44 1020.293 10.65 10.65 11.790 3.12709 4.24988 26.78 1486.46 1020.297 10.95 10.95 11.793 3.12849 4.25148 26.79 1486.48 1020.307 11.25 11.25 11.793 3.13055 4.25424 26.81 1486.51 1020.323 11.55 11.55 11.792 3.13228 4.25678 26.82 1486.53 1020.338 11.85 11.85 11.791 3.13244 4.25704 26.83 1486.54 1020.341 12.15 12.14 11.795 3.13282 4.25708 26.83 1486.56 1020.342 12.45 12.44 11.795 3.13341 4.25796 26.83 1486.57 1020.348 12.75 12.74 11.795 3.13349 4.25807 26.83 1486.57 1020.350 13.05 13.04 11.791 3.13390 4.25905 26.84 1486.57 1020.357 13.35 13.34 11.792 3.13367 4.25863 26.84 1486.58 1020.356 13.65 13.64 11.792 3.13405 4.25914 26.84 1486.59 1020.360 13.95 13.94 11.794 3.13487 4.25997 26.85 1486.61 1020.365 14.25 14.24 11.792 3.13546 4.26102 26.85 1486.61 1020.372 14.55 14.54 11.793 3.13549 4.26101 26.85 1486.62 1020.373 14.85 14.84 11.794 3.13619 4.26184 26.86 1486.64 1020.379 15.15 15.14 11.790 3.13644 4.26261 26.86 1486.63 1020.385 15.45 15.44 11.784 3.13662 4.26353 26.87 1486.62 1020.392 15.75 15.74 11.787 3.13819 4.26530 26.88 1486.66 1020.402 16.05 16.04 11.785 3.13839 4.26586 26.89 1486.66 1020.407 16.35 16.34 11.785 3.13879 4.26640 26.89 1486.67 1020.411 16.65 16.64 11.789 3.13938 4.26672 26.89 1486.69 1020.414 16.95 16.94 11.782 3.13987 4.26824 26.90 1486.68 1020.424 17.25 17.24 11.783 3.14197 4.27092 26.92 1486.71 1020.440 17.55 17.54 11.780 3.14353 4.27343 26.94 1486.73 1020.455 17.85 17.84 11.779 3.14443 4.27481 26.95 1486.74 1020.464 18.15 18.14 11.778 3.14864 4.28063 26.99 1486.79 1020.496 18.45 18.44 11.765 3.15511 4.29086 27.06 1486.83 1020.554 18.75 18.74 11.739 3.15918 4.29949 27.11 1486.81 1020.605 19.05 19.04 11.714 3.16356 4.30843 27.17 1486.80 1020.657 19.39 19.38 11.715 3.16380 4.30856 27.18 1486.81 1020.659