*2026/01/16 09:57:50.75 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/22 18:27:13.000 END TIME : UTC 2024/05/22 18:27:21.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 42 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 12.56 2 Depth metres 0.15 12.55 3 Temperature 'deg C (ITS90)' 10.221 14.436 4 Conductivity S/m 2.63588 3.50757 5 Conductance:Specific S/m 3.34606 4.97848 6 Salinity PSS-78 20.72 31.73 7 Speed:Sound m/s 1486.83 1493.03 8 Density kg/m^3 1015.122 1024.416 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 127 LATITUDE : 48 58.97360 N ! (deg min) LONGITUDE : 124 55.84140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240522_182713 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 42 42 MERGEHDR 1.3 2026/01/16 09:53:53 42 42 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 42 42 CALIB 12.1 2026/01/16 09:56:50 42 42 CLEAN 5.3 2026/01/16 09:57:50 42 42 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:50 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 09:57:46 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 14.436 2.69026 3.41091 21.17 1488.75 1015.446 0.45 0.45 14.418 2.68470 3.40546 21.13 1488.65 1015.422 0.75 0.75 14.421 2.67957 3.39862 21.08 1488.62 1015.386 1.05 1.05 14.417 2.67179 3.38917 21.02 1488.53 1015.339 1.35 1.36 14.402 2.66676 3.38407 20.98 1488.44 1015.316 1.65 1.66 14.396 2.65526 3.36993 20.88 1488.32 1015.244 1.95 1.96 14.388 2.63588 3.34606 20.72 1488.11 1015.122 2.25 2.26 14.384 2.64824 3.36204 20.83 1488.23 1015.207 2.55 2.56 14.374 2.66240 3.38093 20.96 1488.34 1015.309 2.85 2.86 14.365 2.67193 3.39380 21.05 1488.42 1015.379 3.15 3.16 14.356 2.67763 3.40180 21.10 1488.46 1015.423 3.45 3.46 14.350 2.69286 3.42171 21.24 1488.60 1015.530 3.75 3.76 14.337 2.69474 3.42519 21.26 1488.59 1015.551 4.05 4.07 14.313 2.69539 3.42809 21.28 1488.54 1015.571 4.35 4.37 13.981 2.72246 3.49207 21.70 1487.91 1015.958 4.65 4.67 13.777 3.11931 4.02217 25.34 1491.49 1018.800 4.95 4.97 13.664 3.29212 4.25737 26.97 1493.03 1020.083 5.25 5.27 13.487 3.31321 4.30428 27.29 1492.81 1020.362 5.55 5.57 13.309 3.32145 4.33505 27.49 1492.46 1020.554 5.85 5.87 13.170 3.32557 4.35623 27.63 1492.15 1020.688 6.15 6.17 13.034 3.33638 4.38609 27.83 1491.93 1020.869 6.45 6.47 12.747 3.34702 4.43353 28.14 1491.32 1021.164 6.75 6.77 12.488 3.41623 4.55646 28.99 1491.44 1021.865 7.05 7.06 12.378 3.48207 4.65794 29.69 1491.91 1022.434 7.35 7.36 12.116 3.50265 4.71847 30.10 1491.49 1022.796 7.65 7.66 11.772 3.50534 4.76629 30.40 1490.67 1023.096 7.95 7.96 11.486 3.50509 4.80330 30.63 1489.95 1023.329 8.25 8.26 11.255 3.50454 4.83316 30.82 1489.37 1023.516 8.55 8.56 10.930 3.50757 4.88117 31.12 1488.59 1023.810 8.85 8.86 10.666 3.50489 4.91346 31.32 1487.90 1024.011 9.15 9.16 10.530 3.50430 4.93146 31.43 1487.55 1024.122 9.45 9.45 10.429 3.50514 4.94668 31.53 1487.31 1024.215 9.75 9.75 10.365 3.50489 4.95538 31.58 1487.15 1024.269 10.05 10.05 10.313 3.50514 4.96302 31.63 1487.02 1024.316 10.35 10.35 10.282 3.50533 4.96761 31.66 1486.95 1024.344 10.65 10.65 10.268 3.50550 4.96983 31.67 1486.92 1024.359 10.95 10.95 10.252 3.50461 4.97082 31.68 1486.88 1024.367 11.25 11.25 10.251 3.50536 4.97194 31.68 1486.89 1024.374 11.55 11.54 10.259 3.50522 4.97075 31.68 1486.91 1024.368 11.85 11.84 10.248 3.50461 4.97136 31.68 1486.88 1024.374 12.15 12.14 10.226 3.50742 4.97848 31.73 1486.86 1024.416 12.56 12.55 10.221 3.50511 4.97585 31.71 1486.83 1024.403