*2026/01/16 09:57:46.96 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/11 20:19:56.000 END TIME : UTC 2024/01/11 20:20:06.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 52 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.43 2 Depth metres 0.15 15.39 3 Temperature 'deg C (ITS90)' 8.406 10.393 4 Conductivity S/m 2.80061 3.37999 5 Conductance:Specific S/m 4.17429 4.77567 6 Salinity PSS-78 25.93 30.31 7 Speed:Sound m/s 1473.27 1485.8 8 Density kg/m^3 1020.096 1023.303 $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 : 11 LATITUDE : 48 57.97600 N ! (deg min) LONGITUDE : 125 19.57680 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240111_201956 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 52 52 MERGEHDR 1.3 2026/01/16 09:53:43 52 52 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 52 52 CALIB 12.1 2026/01/16 09:56:45 52 52 CLEAN 5.3 2026/01/16 09:57:46 52 52 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 8.469 2.88355 4.30781 26.84 1474.18 1020.809 0.45 0.45 8.406 2.87158 4.29799 26.76 1473.85 1020.760 0.75 0.75 8.435 2.84439 4.25368 26.46 1473.60 1020.523 1.05 1.05 8.455 2.81294 4.20406 26.12 1473.27 1020.257 1.35 1.35 8.546 2.80061 4.17429 25.93 1473.38 1020.096 1.65 1.65 8.686 2.82604 4.19462 26.09 1474.11 1020.200 1.95 1.95 8.713 2.91215 4.31906 26.94 1475.27 1020.867 2.25 2.25 8.967 2.99527 4.40902 27.59 1477.03 1021.341 2.55 2.55 9.234 3.06092 4.47062 28.05 1478.60 1021.662 2.85 2.85 9.472 3.13358 4.54511 28.60 1480.15 1022.053 3.15 3.15 9.656 3.19011 4.60248 29.02 1481.35 1022.355 3.45 3.44 9.834 3.22882 4.63465 29.27 1482.31 1022.520 3.75 3.74 9.901 3.23397 4.63303 29.26 1482.56 1022.508 4.05 4.04 9.931 3.23493 4.63040 29.25 1482.65 1022.493 4.35 4.34 9.929 3.24148 4.64014 29.31 1482.73 1022.548 4.65 4.64 9.943 3.24401 4.64184 29.33 1482.81 1022.557 4.95 4.94 9.955 3.24518 4.64190 29.33 1482.86 1022.558 5.25 5.24 9.966 3.25129 4.64924 29.38 1482.96 1022.599 5.55 5.54 9.994 3.25757 4.65448 29.42 1483.12 1022.627 5.85 5.84 10.020 3.26367 4.65977 29.46 1483.27 1022.655 6.15 6.14 10.031 3.26695 4.66291 29.48 1483.34 1022.673 6.45 6.44 10.040 3.27027 4.66651 29.51 1483.41 1022.693 6.75 6.73 10.045 3.27707 4.67548 29.57 1483.51 1022.743 7.05 7.03 10.056 3.28055 4.67906 29.60 1483.59 1022.763 7.35 7.33 10.073 3.28211 4.67901 29.60 1483.65 1022.763 7.65 7.63 10.090 3.28381 4.67909 29.60 1483.73 1022.763 7.95 7.93 10.121 3.29405 4.68953 29.68 1483.94 1022.820 8.25 8.23 10.143 3.30083 4.69628 29.73 1484.08 1022.856 8.55 8.53 10.167 3.30586 4.70019 29.76 1484.21 1022.877 8.85 8.83 10.183 3.30937 4.70313 29.78 1484.30 1022.893 9.15 9.13 10.199 3.31335 4.70657 29.81 1484.39 1022.912 9.45 9.42 10.228 3.32189 4.71487 29.87 1484.58 1022.957 9.75 9.72 10.244 3.32568 4.71810 29.90 1484.67 1022.975 10.05 10.02 10.248 3.33099 4.72506 29.94 1484.75 1023.014 10.35 10.32 10.267 3.33486 4.72803 29.97 1484.85 1023.030 10.65 10.62 10.277 3.33793 4.73109 29.99 1484.92 1023.047 10.95 10.92 10.296 3.34264 4.73511 30.02 1485.03 1023.069 11.25 11.22 10.319 3.34860 4.74052 30.06 1485.17 1023.098 11.55 11.52 10.331 3.35374 4.74618 30.10 1485.27 1023.129 11.85 11.82 10.340 3.35617 4.74843 30.12 1485.32 1023.142 12.15 12.12 10.344 3.35687 4.74881 30.12 1485.35 1023.145 12.45 12.41 10.345 3.35705 4.74894 30.12 1485.36 1023.147 12.75 12.71 10.349 3.35865 4.75068 30.14 1485.39 1023.158 13.05 13.01 10.357 3.36016 4.75182 30.14 1485.43 1023.165 13.35 13.31 10.365 3.36253 4.75407 30.16 1485.49 1023.178 13.65 13.61 10.374 3.36622 4.75801 30.19 1485.56 1023.200 13.95 13.91 10.390 3.37169 4.76363 30.23 1485.67 1023.231 14.25 14.21 10.393 3.37501 4.76791 30.26 1485.73 1023.255 14.55 14.51 10.386 3.37842 4.77369 30.30 1485.75 1023.289 14.85 14.81 10.388 3.37999 4.77567 30.31 1485.78 1023.301 15.15 15.10 10.392 3.37989 4.77492 30.31 1485.80 1023.298 15.43 15.39 10.386 3.37983 4.77560 30.31 1485.79 1023.303