*2026/01/16 09:57:51.48 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 19:21:19.000 END TIME : UTC 2024/06/11 19:21:33.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 71 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.24 2 Depth metres 0.15 21.17 3 Temperature 'deg C (ITS90)' 9.695 15.112 4 Conductivity S/m 2.77485 3.52504 5 Conductance:Specific S/m 3.45891 5.01032 6 Salinity PSS-78 21.52 31.88 7 Speed:Sound m/s 1485.28 1493.37 8 Density kg/m^3 1015.593 1024.663 $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 : 144 LATITUDE : 48 57.70470 N ! (deg min) LONGITUDE : 125 3.92820 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_192119 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 71 71 MERGEHDR 1.3 2026/01/16 09:53:54 71 71 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 71 71 CALIB 12.1 2026/01/16 09:56:51 71 71 CLEAN 5.3 2026/01/16 09:57:51 71 71 $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 09:56:18 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 14.830 2.78565 3.49696 21.77 1490.77 1015.836 0.45 0.45 15.008 2.77507 3.46813 21.58 1491.14 1015.657 0.75 0.75 15.112 2.77485 3.45891 21.52 1491.42 1015.593 1.05 1.05 15.087 2.78990 3.47983 21.67 1491.50 1015.708 1.35 1.35 15.082 2.81894 3.51642 21.92 1491.78 1015.903 1.65 1.66 15.041 2.84354 3.55077 22.15 1491.92 1016.091 1.95 1.96 14.882 2.89653 3.63139 22.70 1492.04 1016.543 2.25 2.26 14.697 2.95840 3.72625 23.34 1492.18 1017.076 2.55 2.56 14.562 3.01060 3.80493 23.88 1492.36 1017.516 2.85 2.86 14.431 3.08372 3.91031 24.60 1492.78 1018.099 3.15 3.16 14.282 3.12819 3.98168 25.09 1492.86 1018.504 3.45 3.46 13.918 3.18692 4.09440 25.85 1492.54 1019.163 3.75 3.76 13.609 3.26868 4.23303 26.80 1492.62 1019.954 4.05 4.06 13.541 3.31369 4.29890 27.26 1492.93 1020.321 4.35 4.36 13.491 3.35445 4.35744 27.67 1493.25 1020.646 4.65 4.66 13.161 3.44107 4.50857 28.70 1493.37 1021.512 4.95 4.96 12.676 3.47754 4.61501 29.42 1492.57 1022.155 5.25 5.26 12.500 3.48774 4.65034 29.65 1492.25 1022.371 5.55 5.56 12.209 3.50100 4.70454 30.01 1491.68 1022.702 5.85 5.85 11.713 3.51596 4.78839 30.55 1490.62 1023.216 6.15 6.15 11.577 3.52266 4.81539 30.73 1490.36 1023.379 6.45 6.45 11.410 3.52504 4.84081 30.89 1489.97 1023.536 6.75 6.75 11.239 3.52484 4.86328 31.03 1489.55 1023.677 7.05 7.05 11.087 3.52329 4.88163 31.15 1489.15 1023.793 7.35 7.35 11.018 3.52191 4.88903 31.19 1488.97 1023.841 7.65 7.65 10.941 3.51779 4.89380 31.22 1488.73 1023.875 7.95 7.95 10.845 3.51597 4.90436 31.28 1488.47 1023.943 8.25 8.24 10.735 3.50894 4.90961 31.30 1488.11 1023.982 8.55 8.54 10.642 3.50710 4.91995 31.37 1487.86 1024.047 8.85 8.84 10.561 3.50606 4.92962 31.42 1487.65 1024.108 9.15 9.14 10.527 3.50555 4.93369 31.45 1487.56 1024.134 9.45 9.44 10.506 3.50498 4.93583 31.46 1487.50 1024.149 9.75 9.74 10.491 3.50442 4.93700 31.47 1487.46 1024.158 10.05 10.04 10.476 3.50423 4.93894 31.48 1487.43 1024.171 10.35 10.33 10.464 3.50433 4.94073 31.49 1487.40 1024.183 10.65 10.63 10.450 3.50326 4.94109 31.49 1487.36 1024.187 10.95 10.93 10.435 3.50291 4.94275 31.50 1487.32 1024.199 11.25 11.23 10.425 3.50334 4.94467 31.51 1487.31 1024.211 11.55 11.53 10.415 3.50251 4.94494 31.51 1487.28 1024.215 11.85 11.83 10.412 3.50164 4.94418 31.51 1487.26 1024.212 12.15 12.13 10.400 3.50167 4.94591 31.52 1487.24 1024.224 12.45 12.42 10.381 3.50028 4.94657 31.52 1487.18 1024.230 12.75 12.72 10.308 3.49917 4.95517 31.57 1486.98 1024.284 13.05 13.02 10.286 3.49807 4.95673 31.58 1486.92 1024.296 13.35 13.32 10.276 3.49615 4.95549 31.57 1486.87 1024.291 13.65 13.62 10.158 3.49400 4.96896 31.65 1486.55 1024.374 13.95 13.92 10.076 3.49238 4.97833 31.71 1486.33 1024.433 14.25 14.22 10.061 3.49045 4.97764 31.70 1486.27 1024.431 14.55 14.51 10.045 3.48986 4.97908 31.71 1486.23 1024.441 14.85 14.81 10.026 3.48922 4.98090 31.72 1486.18 1024.454 15.15 15.11 10.011 3.48890 4.98261 31.73 1486.14 1024.466 15.45 15.41 10.005 3.48873 4.98313 31.73 1486.13 1024.470 15.75 15.71 9.996 3.48801 4.98341 31.73 1486.10 1024.473 16.05 16.01 9.989 3.48807 4.98446 31.74 1486.09 1024.481 16.35 16.31 9.979 3.48766 4.98534 31.74 1486.06 1024.488 16.65 16.60 9.953 3.48670 4.98766 31.76 1485.99 1024.503 16.95 16.90 9.947 3.48625 4.98796 31.76 1485.97 1024.507 17.25 17.20 9.938 3.48594 4.98876 31.76 1485.95 1024.513 17.55 17.50 9.933 3.48562 4.98895 31.76 1485.94 1024.516 17.85 17.80 9.926 3.48481 4.98880 31.76 1485.92 1024.516 18.15 18.10 9.895 3.48380 4.99178 31.78 1485.83 1024.536 18.45 18.40 9.866 3.48181 4.99316 31.78 1485.73 1024.547 18.75 18.69 9.813 3.48141 5.00019 31.82 1485.60 1024.590 19.05 18.99 9.815 3.48111 4.99946 31.82 1485.60 1024.587 19.35 19.29 9.815 3.48126 4.99965 31.82 1485.61 1024.589 19.65 19.59 9.798 3.48023 5.00064 31.83 1485.56 1024.597 19.95 19.89 9.786 3.47987 5.00179 31.83 1485.53 1024.605 20.25 20.19 9.781 3.47955 5.00210 31.83 1485.52 1024.609 20.55 20.48 9.749 3.47890 5.00581 31.86 1485.43 1024.632 20.85 20.78 9.706 3.47681 5.00891 31.87 1485.30 1024.653 21.24 21.17 9.695 3.47669 5.01032 31.88 1485.28 1024.663