*2026/01/16 09:57:51.03 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/10 21:18:40.000 END TIME : UTC 2024/06/10 21:18:58.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 91 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.2 2 Depth metres 0.15 27.09 3 Temperature 'deg C (ITS90)' 9.53 16.466 4 Conductivity S/m 3.45566 3.55888 5 Conductance:Specific S/m 4.23522 5.00391 6 Salinity PSS-78 26.98 31.81 7 Speed:Sound m/s 1484.68 1502.03 8 Density kg/m^3 1019.499 1024.662 $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 : 134 LATITUDE : 48 58.06640 N ! (deg min) LONGITUDE : 125 19.60590 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240610_211840 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 91 91 MERGEHDR 1.3 2026/01/16 09:53:53 91 91 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 91 91 CALIB 12.1 2026/01/16 09:56:51 91 91 CLEAN 5.3 2026/01/16 09:57:51 91 91 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 16.466 3.51357 4.23672 26.99 1502.03 1019.499 0.45 0.45 16.426 3.50896 4.23522 26.98 1501.90 1019.500 0.75 0.75 16.419 3.51108 4.23844 27.00 1501.91 1019.520 1.05 1.05 16.395 3.50905 4.23846 27.00 1501.83 1019.525 1.35 1.35 16.329 3.50586 4.24144 27.02 1501.65 1019.555 1.65 1.65 16.198 3.49998 4.24774 27.06 1501.29 1019.614 1.95 1.95 15.941 3.49356 4.26655 27.18 1500.62 1019.762 2.25 2.25 15.359 3.52082 4.36185 27.82 1499.52 1020.379 2.55 2.55 14.933 3.54670 4.44077 28.35 1498.77 1020.879 2.85 2.85 14.423 3.55888 4.51370 28.83 1497.68 1021.356 3.15 3.15 13.705 3.55650 4.59433 29.35 1495.93 1021.902 3.45 3.45 13.199 3.55308 4.65077 29.71 1494.66 1022.280 3.75 3.75 12.657 3.54844 4.71147 30.10 1493.29 1022.681 4.05 4.05 12.107 3.53918 4.76886 30.45 1491.83 1023.060 4.35 4.34 11.970 3.53559 4.78169 30.53 1491.46 1023.146 4.65 4.64 11.849 3.53428 4.79562 30.62 1491.15 1023.237 4.95 4.94 11.741 3.53490 4.81057 30.71 1490.89 1023.331 5.25 5.24 11.640 3.53201 4.81989 30.77 1490.61 1023.394 5.55 5.54 11.606 3.53340 4.82620 30.81 1490.55 1023.433 5.85 5.84 11.563 3.53888 4.83949 30.90 1490.50 1023.512 6.15 6.14 11.445 3.53902 4.85530 31.00 1490.22 1023.612 6.45 6.44 11.256 3.52426 4.86027 31.01 1489.58 1023.658 6.75 6.73 11.145 3.51468 4.86197 31.01 1489.19 1023.678 7.05 7.03 10.981 3.50662 4.87282 31.07 1488.69 1023.754 7.35 7.33 10.870 3.49980 4.87849 31.10 1488.33 1023.796 7.65 7.63 10.792 3.49486 4.88211 31.12 1488.08 1023.823 7.95 7.93 10.711 3.49094 4.88776 31.15 1487.83 1023.862 8.25 8.23 10.599 3.48972 4.90148 31.23 1487.54 1023.948 8.55 8.53 10.596 3.49081 4.90331 31.24 1487.55 1023.959 8.85 8.83 10.591 3.49369 4.90805 31.27 1487.58 1023.987 9.15 9.12 10.567 3.49121 4.90787 31.27 1487.49 1023.989 9.45 9.42 10.513 3.48754 4.91022 31.28 1487.31 1024.007 9.75 9.72 10.482 3.48501 4.91090 31.28 1487.21 1024.015 10.05 10.02 10.458 3.48450 4.91352 31.30 1487.15 1024.032 10.35 10.32 10.451 3.48422 4.91417 31.30 1487.13 1024.038 10.65 10.62 10.401 3.48198 4.91793 31.32 1486.98 1024.063 10.95 10.92 10.350 3.47898 4.92082 31.34 1486.82 1024.084 11.25 11.21 10.325 3.47763 4.92238 31.34 1486.74 1024.096 11.55 11.51 10.315 3.47786 4.92401 31.35 1486.72 1024.107 11.85 11.81 10.304 3.47769 4.92538 31.36 1486.70 1024.116 12.15 12.11 10.293 3.47659 4.92533 31.36 1486.66 1024.118 12.45 12.41 10.272 3.47668 4.92844 31.38 1486.61 1024.138 12.75 12.71 10.247 3.47358 4.92752 31.37 1486.52 1024.136 13.05 13.01 10.199 3.47078 4.93027 31.38 1486.36 1024.156 13.35 13.31 10.153 3.46933 4.93459 31.41 1486.23 1024.184 13.65 13.60 10.125 3.46803 4.93674 31.42 1486.15 1024.199 13.95 13.90 10.098 3.46756 4.93987 31.44 1486.08 1024.219 14.25 14.20 10.061 3.46764 4.94518 31.47 1485.99 1024.252 14.55 14.50 10.043 3.46783 4.94801 31.49 1485.95 1024.270 14.85 14.80 10.026 3.46655 4.94847 31.49 1485.90 1024.275 15.15 15.10 10.020 3.46577 4.94833 31.49 1485.88 1024.276 15.45 15.40 10.020 3.46633 4.94907 31.49 1485.89 1024.281 15.75 15.69 10.009 3.46626 4.95052 31.50 1485.87 1024.291 16.05 15.99 10.005 3.46542 4.94989 31.50 1485.85 1024.289 16.35 16.29 10.003 3.46628 4.95133 31.51 1485.86 1024.299 16.65 16.59 9.999 3.46622 4.95183 31.51 1485.85 1024.303 16.95 16.89 9.995 3.46642 4.95271 31.51 1485.85 1024.309 17.25 17.19 9.988 3.46589 4.95295 31.51 1485.83 1024.312 17.55 17.49 9.976 3.46557 4.95426 31.52 1485.80 1024.322 17.85 17.78 9.962 3.46433 4.95449 31.52 1485.75 1024.325 18.15 18.08 9.944 3.46413 4.95664 31.53 1485.71 1024.339 18.45 18.38 9.928 3.46299 4.95733 31.54 1485.66 1024.345 18.75 18.68 9.918 3.46265 4.95826 31.54 1485.64 1024.353 19.05 18.98 9.910 3.46343 4.96051 31.56 1485.63 1024.367 19.35 19.28 9.886 3.46239 4.96244 31.57 1485.56 1024.380 19.65 19.57 9.871 3.46208 4.96412 31.58 1485.52 1024.391 19.95 19.87 9.863 3.46416 4.96826 31.61 1485.53 1024.416 20.25 20.17 9.849 3.46981 4.97829 31.67 1485.57 1024.473 20.55 20.47 9.823 3.47065 4.98331 31.71 1485.52 1024.504 20.85 20.77 9.804 3.47129 4.98691 31.73 1485.48 1024.526 21.15 21.07 9.795 3.46821 4.98381 31.71 1485.43 1024.511 21.45 21.37 9.756 3.46563 4.98565 31.71 1485.30 1024.525 21.75 21.66 9.711 3.46244 4.98751 31.72 1485.15 1024.539 22.05 21.96 9.685 3.45952 4.98703 31.71 1485.05 1024.539 22.35 22.26 9.662 3.46044 4.99164 31.74 1485.01 1024.567 22.65 22.56 9.633 3.45994 4.99522 31.76 1484.93 1024.589 22.95 22.86 9.618 3.45854 4.99529 31.76 1484.88 1024.592 23.25 23.16 9.610 3.45883 4.99682 31.77 1484.87 1024.602 23.55 23.46 9.606 3.45928 4.99804 31.78 1484.87 1024.610 23.85 23.75 9.597 3.45916 4.99918 31.79 1484.85 1024.618 24.15 24.05 9.598 3.45922 4.99920 31.79 1484.85 1024.620 24.45 24.35 9.587 3.45928 5.00088 31.80 1484.83 1024.631 24.75 24.65 9.585 3.45818 4.99950 31.79 1484.82 1024.625 25.05 24.95 9.580 3.45838 5.00049 31.79 1484.81 1024.631 25.35 25.25 9.578 3.45779 5.00005 31.79 1484.80 1024.630 25.65 25.54 9.574 3.45787 5.00067 31.79 1484.80 1024.635 25.95 25.84 9.573 3.45696 4.99945 31.78 1484.79 1024.630 26.25 26.14 9.566 3.45726 5.00089 31.79 1484.78 1024.640 26.55 26.44 9.560 3.45852 5.00368 31.81 1484.79 1024.657 26.85 26.74 9.535 3.45592 5.00352 31.81 1484.69 1024.658 27.20 27.09 9.530 3.45566 5.00391 31.81 1484.68 1024.662