*2026/01/16 09:57:56.77 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 21:40:57.000 END TIME : UTC 2024/10/17 21:41:12.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 76 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.75 2 Depth metres 0.15 22.65 3 Temperature 'deg C (ITS90)' 10.733 12.541 4 Conductivity S/m 3.1746 3.60311 5 Conductance:Specific S/m 4.26361 4.97592 6 Salinity PSS-78 26.91 31.77 7 Speed:Sound m/s 1487.93 1493.13 8 Density kg/m^3 1020.278 1024.407 $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 : 291 LATITUDE : 48 56.46940 N ! (deg min) LONGITUDE : 125 15.83860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_214057 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 76 76 MERGEHDR 1.3 2026/01/16 09:54:10 76 76 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 76 76 CALIB 12.1 2026/01/16 09:56:58 76 76 CLEAN 5.3 2026/01/16 09:57:56 76 76 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 12.229 3.17460 4.26361 26.91 1487.98 1020.278 0.45 0.45 12.165 3.18478 4.28464 27.05 1487.93 1020.400 0.75 0.75 12.194 3.24343 4.36015 27.58 1488.67 1020.807 1.05 1.05 12.283 3.25224 4.36154 27.60 1489.00 1020.805 1.35 1.35 12.408 3.44906 4.61000 29.36 1491.52 1022.144 1.65 1.65 12.481 3.54324 4.72667 30.19 1492.77 1022.776 1.95 1.95 12.511 3.55697 4.74119 30.30 1493.00 1022.854 2.25 2.25 12.535 3.55822 4.73988 30.29 1493.08 1022.845 2.55 2.54 12.541 3.55908 4.74023 30.29 1493.11 1022.847 2.85 2.84 12.534 3.56225 4.74537 30.33 1493.13 1022.878 3.15 3.14 12.514 3.56351 4.74953 30.36 1493.10 1022.904 3.45 3.44 12.493 3.56620 4.75585 30.40 1493.08 1022.943 3.75 3.74 12.464 3.56980 4.76429 30.45 1493.06 1022.994 4.05 4.04 12.434 3.57458 4.77447 30.52 1493.04 1023.054 4.35 4.34 12.415 3.57881 4.78265 30.58 1493.05 1023.103 4.65 4.64 12.387 3.57848 4.78574 30.60 1492.98 1023.124 4.95 4.94 12.366 3.58184 4.79294 30.65 1492.97 1023.167 5.25 5.23 12.344 3.58218 4.79621 30.67 1492.92 1023.189 5.55 5.53 12.290 3.58509 4.80704 30.74 1492.83 1023.256 5.85 5.83 12.197 3.58574 4.81994 30.82 1492.61 1023.339 6.15 6.13 12.108 3.59003 4.83725 30.94 1492.45 1023.445 6.45 6.43 12.038 3.59342 4.85099 31.03 1492.32 1023.529 6.75 6.73 11.959 3.59508 4.86364 31.11 1492.15 1023.609 7.05 7.03 11.923 3.59801 4.87232 31.17 1492.10 1023.661 7.35 7.33 11.900 3.60053 4.87871 31.21 1492.08 1023.700 7.65 7.63 11.878 3.60147 4.88295 31.24 1492.04 1023.727 7.95 7.92 11.855 3.60218 4.88693 31.27 1491.99 1023.753 8.25 8.22 11.832 3.60285 4.89090 31.29 1491.95 1023.778 8.55 8.52 11.790 3.60311 4.89684 31.33 1491.86 1023.817 8.85 8.82 11.737 3.59913 4.89853 31.33 1491.68 1023.833 9.15 9.12 11.671 3.59648 4.90375 31.36 1491.49 1023.869 9.45 9.42 11.619 3.59469 4.90818 31.39 1491.35 1023.900 9.75 9.72 11.560 3.59453 4.91598 31.44 1491.21 1023.950 10.05 10.01 11.526 3.59473 4.92080 31.47 1491.13 1023.981 10.35 10.31 11.492 3.59433 4.92482 31.50 1491.05 1024.008 10.65 10.61 11.457 3.59453 4.92988 31.53 1490.97 1024.040 10.95 10.91 11.419 3.59256 4.93226 31.54 1490.86 1024.058 11.25 11.21 11.376 3.59066 4.93546 31.56 1490.73 1024.081 11.55 11.51 11.341 3.58794 4.93645 31.56 1490.62 1024.091 11.85 11.81 11.294 3.58639 4.94070 31.59 1490.49 1024.120 12.15 12.11 11.253 3.58436 4.94350 31.60 1490.37 1024.141 12.45 12.40 11.224 3.58190 4.94404 31.60 1490.27 1024.148 12.75 12.70 11.187 3.58065 4.94745 31.62 1490.17 1024.171 13.05 13.00 11.136 3.57789 4.95062 31.64 1490.01 1024.194 13.35 13.30 11.089 3.57336 4.95081 31.63 1489.85 1024.201 13.65 13.60 11.061 3.57255 4.95353 31.65 1489.77 1024.219 13.95 13.90 11.033 3.56817 4.95130 31.63 1489.66 1024.211 14.25 14.20 11.006 3.56758 4.95409 31.65 1489.59 1024.230 14.55 14.49 10.989 3.56813 4.95722 31.67 1489.56 1024.250 14.85 14.79 10.974 3.56762 4.95860 31.68 1489.52 1024.260 15.15 15.09 10.955 3.56668 4.95991 31.68 1489.46 1024.270 15.45 15.39 10.945 3.56606 4.96038 31.68 1489.44 1024.275 15.75 15.69 10.938 3.56557 4.96071 31.69 1489.42 1024.278 16.05 15.99 10.929 3.56396 4.95966 31.68 1489.38 1024.275 16.35 16.29 10.923 3.56279 4.95889 31.67 1489.36 1024.272 16.65 16.58 10.899 3.56162 4.96068 31.68 1489.29 1024.285 16.95 16.88 10.875 3.56090 4.96287 31.69 1489.22 1024.301 17.25 17.18 10.866 3.55997 4.96287 31.69 1489.19 1024.303 17.55 17.48 10.855 3.55949 4.96370 31.70 1489.17 1024.309 17.85 17.78 10.846 3.55953 4.96505 31.70 1489.15 1024.319 18.15 18.08 10.843 3.55895 4.96461 31.70 1489.14 1024.318 18.45 18.38 10.837 3.55861 4.96496 31.70 1489.13 1024.322 18.75 18.67 10.825 3.55831 4.96623 31.71 1489.10 1024.331 19.05 18.97 10.819 3.55787 4.96647 31.71 1489.08 1024.334 19.35 19.27 10.816 3.55818 4.96729 31.72 1489.08 1024.340 19.65 19.57 10.814 3.55822 4.96759 31.72 1489.08 1024.343 19.95 19.87 10.808 3.55825 4.96845 31.72 1489.07 1024.349 20.25 20.17 10.806 3.55810 4.96856 31.72 1489.07 1024.352 20.55 20.47 10.806 3.55895 4.96979 31.73 1489.08 1024.360 20.85 20.76 10.805 3.55902 4.96996 31.73 1489.09 1024.362 21.15 21.06 10.796 3.55764 4.96932 31.73 1489.05 1024.360 21.45 21.36 10.785 3.55782 4.97112 31.74 1489.03 1024.372 21.75 21.66 10.774 3.55645 4.97079 31.74 1488.99 1024.373 22.05 21.96 10.760 3.55625 4.97239 31.75 1488.96 1024.384 22.35 22.26 10.733 3.55610 4.97592 31.77 1488.90 1024.407 22.75 22.65 10.733 3.55532 4.97480 31.76 1488.89 1024.402