*2026/01/16 09:47:04.78 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 17:57:39.000 END TIME : UTC 2023/12/01 17:57:52.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 67 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.89 2 Depth metres 0.15 19.85 3 Temperature 'deg C (ITS90)' 11.37 11.427 4 Conductivity S/m 3.1535 3.22014 5 Conductance:Specific S/m 4.33268 4.42667 6 Salinity PSS-78 27.32 27.97 7 Speed:Sound m/s 1485.53 1486.56 8 Density kg/m^3 1020.74 1021.334 $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 : 92 LATITUDE : 49 13.92500 N ! (deg min) LONGITUDE : 125 54.68170 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_175739 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 67 67 MERGEHDR 1.3 2026/01/15 13:41:48 67 67 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 67 67 CALIB 12.1 2026/01/16 09:46:09 67 67 CLEAN 5.3 2026/01/16 09:47:04 67 67 $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 11.392 3.15350 4.33268 27.32 1485.53 1020.740 0.45 0.45 11.386 3.15486 4.33532 27.34 1485.53 1020.756 0.75 0.75 11.410 3.15668 4.33491 27.34 1485.62 1020.753 1.05 1.05 11.421 3.16546 4.34571 27.41 1485.76 1020.811 1.35 1.35 11.425 3.17374 4.35656 27.49 1485.87 1020.871 1.65 1.65 11.427 3.17798 4.36210 27.53 1485.93 1020.902 1.95 1.95 11.424 3.17975 4.36490 27.55 1485.94 1020.919 2.25 2.25 11.421 3.17949 4.36490 27.55 1485.94 1020.920 2.55 2.55 11.417 3.18129 4.36790 27.57 1485.95 1020.938 2.85 2.85 11.421 3.18341 4.37033 27.59 1485.99 1020.952 3.15 3.15 11.418 3.18330 4.37046 27.59 1485.99 1020.955 3.45 3.44 11.411 3.18396 4.37227 27.60 1485.98 1020.966 3.75 3.74 11.404 3.18317 4.37197 27.60 1485.96 1020.967 4.05 4.04 11.397 3.18304 4.37272 27.60 1485.94 1020.973 4.35 4.34 11.380 3.18212 4.37341 27.60 1485.89 1020.979 4.65 4.64 11.387 3.18370 4.37481 27.61 1485.93 1020.988 4.95 4.94 11.378 3.18555 4.37838 27.64 1485.94 1021.009 5.25 5.24 11.382 3.18857 4.38205 27.66 1485.99 1021.030 5.55 5.54 11.387 3.19031 4.38384 27.68 1486.02 1021.040 5.85 5.84 11.389 3.19283 4.38710 27.70 1486.06 1021.059 6.15 6.14 11.389 3.19515 4.39032 27.72 1486.09 1021.078 6.45 6.44 11.394 3.19670 4.39177 27.73 1486.13 1021.086 6.75 6.74 11.403 3.19970 4.39488 27.75 1486.19 1021.104 7.05 7.04 11.406 3.20078 4.39597 27.76 1486.22 1021.111 7.35 7.34 11.409 3.20228 4.39764 27.77 1486.25 1021.121 7.65 7.64 11.407 3.20471 4.40124 27.80 1486.28 1021.142 7.95 7.94 11.408 3.20734 4.40474 27.82 1486.31 1021.162 8.25 8.24 11.404 3.20929 4.40786 27.84 1486.33 1021.180 8.55 8.54 11.395 3.21115 4.41155 27.87 1486.33 1021.202 8.85 8.84 11.396 3.21296 4.41389 27.89 1486.36 1021.216 9.15 9.14 11.397 3.21322 4.41418 27.89 1486.37 1021.219 9.45 9.43 11.395 3.21325 4.41440 27.89 1486.37 1021.222 9.75 9.73 11.389 3.21263 4.41427 27.89 1486.35 1021.223 10.05 10.03 11.394 3.21345 4.41484 27.89 1486.38 1021.227 10.35 10.33 11.386 3.21288 4.41501 27.89 1486.36 1021.230 10.65 10.63 11.382 3.21373 4.41664 27.90 1486.36 1021.240 10.95 10.93 11.378 3.21333 4.41665 27.90 1486.35 1021.242 11.25 11.23 11.375 3.21435 4.41835 27.91 1486.36 1021.253 11.55 11.53 11.381 3.21461 4.41796 27.91 1486.38 1021.251 11.85 11.83 11.380 3.21460 4.41808 27.91 1486.39 1021.253 12.15 12.13 11.383 3.21533 4.41870 27.92 1486.41 1021.258 12.45 12.43 11.377 3.21504 4.41904 27.92 1486.39 1021.261 12.75 12.73 11.379 3.21578 4.41979 27.92 1486.41 1021.266 13.05 13.03 11.381 3.21590 4.41972 27.92 1486.42 1021.267 13.35 13.33 11.385 3.21640 4.41995 27.93 1486.44 1021.269 13.65 13.63 11.383 3.21651 4.42031 27.93 1486.44 1021.273 13.95 13.93 11.381 3.21676 4.42097 27.93 1486.45 1021.278 14.25 14.23 11.381 3.21676 4.42089 27.93 1486.45 1021.279 14.55 14.53 11.382 3.21671 4.42071 27.93 1486.46 1021.279 14.85 14.82 11.384 3.21722 4.42124 27.93 1486.47 1021.283 15.15 15.12 11.377 3.21678 4.42150 27.93 1486.45 1021.286 15.45 15.42 11.378 3.21673 4.42126 27.93 1486.46 1021.286 15.75 15.72 11.379 3.21761 4.42229 27.94 1486.48 1021.293 16.05 16.02 11.380 3.21790 4.42258 27.94 1486.49 1021.296 16.35 16.32 11.378 3.21740 4.42223 27.94 1486.48 1021.295 16.65 16.62 11.376 3.21861 4.42407 27.95 1486.50 1021.307 16.95 16.92 11.377 3.21862 4.42403 27.95 1486.50 1021.308 17.25 17.22 11.375 3.21843 4.42393 27.95 1486.50 1021.309 17.55 17.52 11.374 3.21879 4.42459 27.96 1486.51 1021.314 17.85 17.82 11.377 3.21920 4.42482 27.96 1486.53 1021.316 18.15 18.12 11.377 3.21905 4.42461 27.96 1486.53 1021.316 18.45 18.42 11.379 3.21952 4.42499 27.96 1486.54 1021.319 18.75 18.72 11.377 3.21900 4.42454 27.95 1486.54 1021.318 19.05 19.02 11.370 3.21980 4.42647 27.97 1486.53 1021.331 19.35 19.32 11.372 3.21964 4.42601 27.96 1486.54 1021.329 19.65 19.62 11.370 3.21999 4.42667 27.97 1486.55 1021.334 19.89 19.85 11.374 3.22014 4.42645 27.97 1486.56 1021.334