*2026/01/16 09:57:53.57 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/13 20:18:40.000 END TIME : UTC 2024/08/13 20:18:49.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 47 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 13.95 2 Depth metres 0.15 13.91 3 Temperature 'deg C (ITS90)' 14.702 16.424 4 Conductivity S/m 3.72604 3.82479 5 Conductance:Specific S/m 4.61665 4.69384 6 Salinity PSS-78 29.69 30.13 7 Speed:Sound m/s 1500.27 1504.99 8 Density kg/m^3 1021.575 1022.346 $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 : 199 LATITUDE : 49 16.70120 N ! (deg min) LONGITUDE : 125 52.75550 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240813_201840 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 47 47 MERGEHDR 1.3 2026/01/16 09:53:59 47 47 HDREDIT2 3.2 2026/01/16 09:55:09 ? ? REMOVECH 8.2 2026/01/16 09:56:20 47 47 CALIB 12.1 2026/01/16 09:56:53 47 47 CLEAN 5.3 2026/01/16 09:57:53 47 47 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:09 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:53 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 16.424 3.82479 4.61665 29.69 1504.99 1021.575 0.45 0.45 16.122 3.80648 4.62826 29.76 1504.13 1021.694 0.75 0.75 16.103 3.80634 4.63022 29.77 1504.09 1021.710 1.05 1.05 16.087 3.80717 4.63306 29.79 1504.07 1021.730 1.35 1.35 16.083 3.80728 4.63361 29.79 1504.07 1021.734 1.65 1.65 16.078 3.80888 4.63619 29.81 1504.08 1021.751 1.95 1.95 16.043 3.80841 4.63954 29.83 1504.00 1021.777 2.25 2.24 16.015 3.80720 4.64127 29.84 1503.93 1021.792 2.55 2.54 15.977 3.80363 4.64115 29.84 1503.81 1021.799 2.85 2.84 15.919 3.79942 4.64256 29.85 1503.64 1021.819 3.15 3.14 15.866 3.79476 4.64289 29.85 1503.48 1021.831 3.45 3.44 15.803 3.78742 4.64116 29.83 1503.27 1021.834 3.75 3.74 15.716 3.78262 4.64509 29.85 1503.03 1021.871 4.05 4.04 15.607 3.77353 4.64644 29.85 1502.69 1021.899 4.35 4.34 15.429 3.75694 4.64633 29.84 1502.12 1021.929 4.65 4.64 15.338 3.75239 4.65116 29.87 1501.87 1021.972 4.95 4.94 15.217 3.74401 4.65475 29.89 1501.51 1022.013 5.25 5.24 15.147 3.74205 4.66040 29.92 1501.33 1022.056 5.55 5.54 15.095 3.74169 4.66608 29.96 1501.21 1022.097 5.85 5.84 15.031 3.73608 4.66644 29.96 1501.01 1022.111 6.15 6.14 14.999 3.73323 4.66664 29.96 1500.91 1022.118 6.45 6.43 14.981 3.73321 4.66879 29.97 1500.87 1022.134 6.75 6.73 14.959 3.73130 4.66893 29.97 1500.81 1022.139 7.05 7.03 14.944 3.73246 4.67210 29.99 1500.79 1022.160 7.35 7.33 14.932 3.73235 4.67337 30.00 1500.76 1022.171 7.65 7.63 14.918 3.73138 4.67382 30.00 1500.73 1022.177 7.95 7.93 14.908 3.73080 4.67423 30.01 1500.70 1022.182 8.25 8.23 14.898 3.73024 4.67468 30.01 1500.68 1022.187 8.55 8.53 14.893 3.73024 4.67526 30.01 1500.67 1022.192 8.85 8.83 14.882 3.72947 4.67559 30.01 1500.64 1022.197 9.15 9.13 14.877 3.72919 4.67588 30.02 1500.63 1022.201 9.45 9.43 14.867 3.72796 4.67545 30.01 1500.60 1022.201 9.75 9.73 14.857 3.72753 4.67610 30.02 1500.58 1022.207 10.05 10.02 14.850 3.72646 4.67558 30.01 1500.56 1022.207 10.35 10.32 14.847 3.72604 4.67540 30.01 1500.55 1022.208 10.65 10.62 14.850 3.72841 4.67806 30.03 1500.59 1022.223 10.95 10.92 14.851 3.73114 4.68134 30.05 1500.62 1022.242 11.25 11.22 14.855 3.73153 4.68140 30.05 1500.64 1022.243 11.55 11.52 14.866 3.73289 4.68183 30.06 1500.68 1022.245 11.85 11.82 14.852 3.73404 4.68484 30.08 1500.67 1022.265 12.15 12.12 14.820 3.73333 4.68772 30.10 1500.59 1022.287 12.45 12.42 14.813 3.73088 4.68554 30.08 1500.55 1022.278 12.75 12.72 14.819 3.73122 4.68524 30.08 1500.58 1022.276 13.05 13.02 14.798 3.72994 4.68605 30.08 1500.52 1022.285 13.35 13.32 14.762 3.72851 4.68850 30.10 1500.43 1022.305 13.65 13.61 14.702 3.72707 4.69384 30.13 1500.28 1022.346 13.95 13.91 14.702 3.72620 4.69266 30.12 1500.27 1022.340