*2026/01/16 09:47:02.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/07 22:19:25.000 END TIME : UTC 2023/11/07 22:19:32.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 40 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 11.7 2 Depth metres 0.15 11.68 3 Temperature 'deg C (ITS90)' 11.379 13.167 4 Conductivity S/m 0.47262 3.94687 5 Conductance:Specific S/m 0.64956 5.17701 6 Salinity PSS-78 3.5 33.47 7 Speed:Sound m/s 1456.96 1499.01 8 Density kg/m^3 1002.299 1025.233 $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 : 43 LATITUDE : 48 58.86120 N ! (deg min) LONGITUDE : 124 55.18220 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231107_221925 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:51 40 40 MERGEHDR 1.3 2026/01/15 13:41:47 40 40 HDREDIT2 3.2 2026/01/15 14:00:54 ? ? REMOVECH 8.2 2026/01/15 14:01:17 40 40 CALIB 12.1 2026/01/16 09:46:03 40 40 CLEAN 5.3 2026/01/16 09:47:02 40 40 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:54 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 14:01:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:03 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 11.379 0.47262 0.64956 3.50 1456.96 1002.299 0.45 0.46 11.673 0.60305 0.82219 4.51 1459.30 1003.047 0.75 0.76 11.754 1.58884 2.16148 12.78 1469.50 1009.433 1.05 1.06 11.828 1.77847 2.41456 14.42 1471.73 1010.689 1.35 1.37 11.876 1.97707 2.68067 16.16 1473.98 1012.028 1.65 1.67 11.985 2.28466 3.08861 18.87 1477.59 1014.106 1.95 1.97 12.144 2.47909 3.33712 20.55 1480.16 1015.378 2.25 2.27 12.292 2.60140 3.48790 21.58 1481.90 1016.151 2.55 2.57 12.432 2.86537 3.82742 23.91 1485.16 1017.928 2.85 2.87 12.539 3.21323 4.27987 27.05 1489.26 1020.341 3.15 3.17 12.650 3.41253 4.53196 28.83 1491.75 1021.697 3.45 3.47 12.738 3.47511 4.60428 29.35 1492.67 1022.083 3.75 3.77 12.784 3.48937 4.61748 29.44 1492.95 1022.151 4.05 4.07 12.816 3.49651 4.62309 29.49 1493.11 1022.179 4.35 4.37 12.858 3.52375 4.65392 29.71 1493.52 1022.344 4.65 4.67 12.899 3.62109 4.77729 30.59 1494.70 1023.017 4.95 4.97 12.942 3.68632 4.85780 31.16 1495.54 1023.457 5.25 5.26 12.984 3.70749 4.88030 31.33 1495.88 1023.577 5.55 5.56 13.012 3.74004 4.91952 31.61 1496.31 1023.791 5.85 5.86 13.036 3.76040 4.94319 31.78 1496.60 1023.921 6.15 6.16 13.052 3.77419 4.95921 31.90 1496.80 1024.009 6.45 6.46 13.070 3.78313 4.96865 31.97 1496.94 1024.060 6.75 6.76 13.081 3.78826 4.97398 32.01 1497.03 1024.089 7.05 7.06 13.089 3.79237 4.97829 32.04 1497.10 1024.113 7.35 7.36 13.096 3.80079 4.98837 32.11 1497.21 1024.170 7.65 7.65 13.109 3.81218 5.00164 32.21 1497.38 1024.243 7.95 7.95 13.116 3.82945 5.02344 32.36 1497.59 1024.364 8.25 8.25 13.126 3.85334 5.05343 32.58 1497.88 1024.531 8.55 8.55 13.144 3.86485 5.06618 32.67 1498.06 1024.601 8.85 8.85 13.150 3.87297 5.07600 32.74 1498.17 1024.656 9.15 9.15 13.156 3.87943 5.08364 32.80 1498.26 1024.699 9.45 9.44 13.158 3.88195 5.08669 32.82 1498.29 1024.717 9.75 9.74 13.154 3.88824 5.09551 32.88 1498.36 1024.767 10.05 10.04 13.151 3.89690 5.10724 32.97 1498.45 1024.834 10.35 10.34 13.156 3.91283 5.12738 33.11 1498.65 1024.947 10.65 10.64 13.166 3.93056 5.14929 33.27 1498.87 1025.069 10.95 10.94 13.167 3.94129 5.16317 33.37 1499.00 1025.148 11.25 11.24 13.152 3.94436 5.16928 33.41 1499.01 1025.185 11.55 11.53 13.119 3.94687 5.17701 33.47 1498.96 1025.233 11.70 11.68 13.109 3.94456 5.17530 33.45 1498.92 1025.226