*2026/01/16 10:37:57.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 19:31:32.000 END TIME : UTC 2025/06/26 19:31:41.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 50 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 14.9 2 Depth metres 0.15 14.84 3 Temperature 'deg C (ITS90)' 10.245 14.909 4 Conductivity S/m 3.46716 3.73082 5 Conductance:Specific S/m 4.64945 4.92041 6 Salinity PSS-78 29.81 31.32 7 Speed:Sound m/s 1486.47 1500.58 8 Density kg/m^3 1022.067 1024.106 $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 : 207 LATITUDE : 48 56.46840 N ! (deg min) LONGITUDE : 125 15.91570 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_193132 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 50 50 MERGEHDR 1.3 2026/01/16 10:35:47 50 50 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 50 50 CALIB 12.1 2026/01/16 10:37:21 50 50 CLEAN 5.3 2026/01/16 10:37:57 50 50 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:21 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 14.909 3.73082 4.67417 30.01 1500.58 1022.148 0.45 0.45 14.822 3.72528 4.67746 30.03 1500.32 1022.182 0.75 0.75 14.734 3.71958 4.68060 30.04 1500.06 1022.214 1.05 1.05 14.665 3.71951 4.68867 30.10 1499.91 1022.270 1.35 1.35 14.581 3.70579 4.68123 30.04 1499.57 1022.243 1.65 1.65 14.572 3.69087 4.66353 29.91 1499.40 1022.149 1.95 1.94 14.611 3.68335 4.64945 29.81 1499.42 1022.067 2.25 2.24 14.620 3.68432 4.64955 29.81 1499.45 1022.067 2.55 2.54 14.599 3.68721 4.65573 29.86 1499.44 1022.106 2.85 2.84 14.533 3.70044 4.68024 30.03 1499.43 1022.251 3.15 3.14 14.455 3.69967 4.68848 30.08 1499.24 1022.310 3.45 3.44 14.408 3.69632 4.68979 30.08 1499.10 1022.325 3.75 3.74 14.355 3.69452 4.69383 30.11 1498.96 1022.356 4.05 4.04 14.310 3.69473 4.69952 30.15 1498.86 1022.396 4.35 4.34 14.280 3.69452 4.70277 30.17 1498.80 1022.419 4.65 4.64 14.259 3.69215 4.70223 30.16 1498.73 1022.421 4.95 4.94 14.231 3.69373 4.70770 30.20 1498.68 1022.456 5.25 5.24 14.196 3.69178 4.70936 30.21 1498.58 1022.471 5.55 5.53 14.163 3.69112 4.71247 30.23 1498.50 1022.495 5.85 5.83 14.096 3.68735 4.71574 30.25 1498.31 1022.524 6.15 6.13 13.983 3.68525 4.72671 30.32 1498.02 1022.601 6.45 6.43 13.856 3.68224 4.73830 30.39 1497.70 1022.684 6.75 6.73 13.516 3.67740 4.77380 30.61 1496.84 1022.927 7.05 7.03 13.003 3.66118 4.81693 30.88 1495.44 1023.233 7.35 7.33 12.673 3.61400 4.79655 30.70 1494.12 1023.162 7.65 7.63 12.469 3.57397 4.76927 30.49 1493.18 1023.037 7.95 7.93 11.956 3.53033 4.77638 30.49 1491.42 1023.134 8.25 8.23 11.443 3.50529 4.80928 30.67 1489.85 1023.367 8.55 8.52 11.298 3.50311 4.82546 30.77 1489.47 1023.471 8.85 8.82 11.160 3.50066 4.84047 30.86 1489.10 1023.568 9.15 9.12 10.983 3.49830 4.86106 30.99 1488.63 1023.698 9.45 9.42 10.865 3.49766 4.87618 31.08 1488.33 1023.792 9.75 9.72 10.787 3.49434 4.88214 31.11 1488.09 1023.833 10.05 10.02 10.737 3.49256 4.88649 31.14 1487.95 1023.862 10.35 10.32 10.696 3.49136 4.89035 31.16 1487.84 1023.888 10.65 10.61 10.663 3.49012 4.89313 31.18 1487.74 1023.907 10.95 10.91 10.633 3.48954 4.89657 31.20 1487.66 1023.929 11.25 11.21 10.603 3.48950 4.90063 31.22 1487.59 1023.955 11.55 11.51 10.571 3.48879 4.90399 31.24 1487.51 1023.978 11.85 11.81 10.530 3.48772 4.90820 31.27 1487.39 1024.005 12.15 12.11 10.482 3.48682 4.91352 31.30 1487.27 1024.039 12.45 12.41 10.445 3.47824 4.90659 31.25 1487.07 1024.005 12.75 12.71 10.416 3.47406 4.90468 31.23 1486.95 1023.998 13.05 13.00 10.370 3.47151 4.90745 31.24 1486.81 1024.018 13.35 13.30 10.339 3.46909 4.90829 31.24 1486.71 1024.026 13.65 13.60 10.317 3.46843 4.91037 31.26 1486.65 1024.040 13.95 13.90 10.296 3.46849 4.91337 31.27 1486.60 1024.060 14.25 14.20 10.277 3.46760 4.91484 31.28 1486.54 1024.070 14.55 14.50 10.248 3.46716 4.91816 31.30 1486.47 1024.092 14.90 14.84 10.245 3.46839 4.92041 31.32 1486.48 1024.106