*2026/01/16 09:57:50.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 21:25:05.000 END TIME : UTC 2024/05/21 21:25:24.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.06 2 Depth metres 0.15 28.92 3 Temperature 'deg C (ITS90)' 9.022 13.308 4 Conductivity S/m 3.45461 3.59307 5 Conductance:Specific S/m 4.68718 5.07815 6 Salinity PSS-78 29.98 32.26 7 Speed:Sound m/s 1483.4 1495.31 8 Density kg/m^3 1022.452 1025.104 $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 : 120 LATITUDE : 48 56.69600 N ! (deg min) LONGITUDE : 125 19.08620 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_212505 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 97 97 MERGEHDR 1.3 2026/01/16 09:53:52 97 97 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 97 97 CALIB 12.1 2026/01/16 09:56:50 97 97 CLEAN 5.3 2026/01/16 09:57:50 97 97 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:50 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 13.307 3.59286 4.68961 30.00 1495.31 1022.465 0.45 0.45 13.308 3.59117 4.68718 29.98 1495.30 1022.452 0.75 0.75 13.304 3.59129 4.68793 29.99 1495.29 1022.458 1.05 1.05 13.287 3.59076 4.68925 30.00 1495.25 1022.469 1.35 1.35 13.272 3.59064 4.69090 30.01 1495.22 1022.481 1.65 1.65 13.262 3.59053 4.69198 30.01 1495.20 1022.490 1.95 1.94 13.247 3.59121 4.69479 30.03 1495.17 1022.508 2.25 2.24 13.234 3.59167 4.69701 30.05 1495.15 1022.524 2.55 2.54 13.181 3.59233 4.70438 30.09 1495.04 1022.572 2.85 2.84 13.095 3.59307 4.71592 30.17 1494.84 1022.648 3.15 3.14 13.032 3.59222 4.72268 30.21 1494.68 1022.694 3.45 3.44 12.870 3.59083 4.74103 30.33 1494.28 1022.816 3.75 3.74 12.594 3.58689 4.77061 30.51 1493.57 1023.013 4.05 4.04 12.364 3.58426 4.79639 30.67 1492.98 1023.183 4.35 4.34 12.186 3.58136 4.81543 30.79 1492.51 1023.309 4.65 4.64 12.090 3.57745 4.82268 30.83 1492.24 1023.360 4.95 4.93 11.959 3.57399 4.83510 30.91 1491.88 1023.444 5.25 5.23 11.789 3.57092 4.85328 31.02 1491.43 1023.563 5.55 5.53 11.545 3.56546 4.87814 31.17 1490.77 1023.725 5.85 5.83 11.382 3.55583 4.88675 31.21 1490.25 1023.789 6.15 6.13 11.180 3.54319 4.89656 31.26 1489.61 1023.863 6.45 6.43 11.023 3.53939 4.91269 31.36 1489.17 1023.967 6.75 6.73 10.911 3.53710 4.92477 31.43 1488.87 1024.045 7.05 7.02 10.813 3.53500 4.93538 31.50 1488.60 1024.112 7.35 7.32 10.738 3.53417 4.94453 31.55 1488.41 1024.170 7.65 7.62 10.692 3.53356 4.95001 31.58 1488.29 1024.205 7.95 7.92 10.636 3.53068 4.95386 31.60 1488.12 1024.232 8.25 8.22 10.571 3.52518 4.95510 31.61 1487.89 1024.245 8.55 8.52 10.471 3.51944 4.96095 31.64 1487.58 1024.286 8.85 8.82 10.399 3.51812 4.96924 31.68 1487.38 1024.339 9.15 9.11 10.344 3.51693 4.97524 31.72 1487.23 1024.377 9.45 9.41 10.295 3.51475 4.97907 31.74 1487.09 1024.403 9.75 9.71 10.269 3.51328 4.98069 31.75 1487.01 1024.415 10.05 10.01 10.245 3.51175 4.98196 31.76 1486.93 1024.425 10.35 10.31 10.219 3.51034 4.98363 31.76 1486.85 1024.437 10.65 10.61 10.182 3.50932 4.98744 31.79 1486.75 1024.462 10.95 10.91 10.156 3.50776 4.98887 31.79 1486.67 1024.473 11.25 11.20 10.127 3.50647 4.99118 31.81 1486.59 1024.489 11.55 11.50 10.106 3.50502 4.99209 31.81 1486.52 1024.496 11.85 11.80 10.087 3.50501 4.99480 31.83 1486.48 1024.514 12.15 12.10 10.063 3.50299 4.99534 31.83 1486.40 1024.520 12.45 12.40 10.033 3.50172 4.99776 31.84 1486.31 1024.536 12.75 12.70 10.002 3.50080 5.00087 31.86 1486.22 1024.557 13.05 13.00 9.977 3.49970 5.00281 31.87 1486.15 1024.570 13.35 13.29 9.965 3.49875 5.00315 31.87 1486.12 1024.574 13.65 13.59 9.958 3.49808 5.00325 31.87 1486.09 1024.576 13.95 13.89 9.939 3.49788 5.00574 31.88 1486.05 1024.593 14.25 14.19 9.927 3.49659 5.00564 31.88 1486.00 1024.594 14.55 14.49 9.907 3.49609 5.00780 31.89 1485.95 1024.609 14.85 14.79 9.868 3.49399 5.01035 31.91 1485.83 1024.626 15.15 15.08 9.841 3.49285 5.01255 31.92 1485.75 1024.641 15.45 15.38 9.813 3.49205 5.01541 31.93 1485.68 1024.660 15.75 15.68 9.775 3.48937 5.01701 31.94 1485.55 1024.672 16.05 15.98 9.762 3.48779 5.01665 31.94 1485.50 1024.672 16.35 16.28 9.747 3.48602 5.01625 31.93 1485.45 1024.672 16.65 16.58 9.719 3.48635 5.02077 31.96 1485.38 1024.700 16.95 16.88 9.672 3.48388 5.02401 31.98 1485.24 1024.722 17.25 17.17 9.639 3.48086 5.02454 31.97 1485.12 1024.728 17.55 17.47 9.602 3.47908 5.02728 31.99 1485.01 1024.746 17.85 17.77 9.558 3.47744 5.03129 32.01 1484.88 1024.772 18.15 18.07 9.533 3.47630 5.03325 32.02 1484.81 1024.786 18.45 18.37 9.520 3.47526 5.03367 32.02 1484.76 1024.790 18.75 18.67 9.488 3.47393 5.03637 32.04 1484.67 1024.808 19.05 18.96 9.467 3.47166 5.03624 32.03 1484.59 1024.809 19.35 19.26 9.455 3.47033 5.03599 32.03 1484.55 1024.810 19.65 19.56 9.438 3.46799 5.03512 32.02 1484.48 1024.807 19.95 19.86 9.402 3.46759 5.03979 32.05 1484.39 1024.836 20.25 20.16 9.386 3.46712 5.04149 32.06 1484.34 1024.848 20.55 20.46 9.378 3.46758 5.04338 32.07 1484.33 1024.860 20.85 20.76 9.353 3.46604 5.04469 32.08 1484.26 1024.869 21.15 21.05 9.320 3.46384 5.04644 32.08 1484.15 1024.882 21.45 21.35 9.304 3.46258 5.04685 32.08 1484.10 1024.886 21.75 21.65 9.291 3.46202 5.04802 32.09 1484.06 1024.895 22.05 21.95 9.278 3.46207 5.05001 32.10 1484.03 1024.907 22.35 22.25 9.262 3.46045 5.05003 32.10 1483.97 1024.910 22.65 22.55 9.260 3.46095 5.05097 32.11 1483.98 1024.916 22.95 22.84 9.255 3.46043 5.05099 32.11 1483.97 1024.918 23.25 23.14 9.243 3.45993 5.05195 32.11 1483.93 1024.925 23.55 23.44 9.227 3.46023 5.05484 32.13 1483.90 1024.943 23.85 23.74 9.214 3.45994 5.05626 32.14 1483.87 1024.952 24.15 24.04 9.206 3.45849 5.05533 32.13 1483.83 1024.949 24.45 24.34 9.199 3.45864 5.05664 32.14 1483.82 1024.958 24.75 24.63 9.189 3.45786 5.05694 32.14 1483.79 1024.961 25.05 24.93 9.185 3.45739 5.05695 32.14 1483.78 1024.963 25.35 25.23 9.169 3.45790 5.06004 32.16 1483.75 1024.982 25.65 25.53 9.151 3.45790 5.06262 32.17 1483.71 1024.998 25.95 25.83 9.147 3.45779 5.06305 32.17 1483.70 1025.002 26.25 26.13 9.135 3.45795 5.06515 32.19 1483.67 1025.015 26.55 26.42 9.129 3.45752 5.06534 32.19 1483.66 1025.018 26.85 26.72 9.125 3.45735 5.06569 32.19 1483.65 1025.021 27.15 27.02 9.116 3.45770 5.06759 32.20 1483.64 1025.033 27.45 27.32 9.112 3.45777 5.06827 32.21 1483.63 1025.038 27.75 27.62 9.114 3.45794 5.06816 32.20 1483.65 1025.039 28.05 27.92 9.104 3.45736 5.06892 32.21 1483.61 1025.045 28.35 28.21 9.063 3.45623 5.07332 32.23 1483.50 1025.072 28.65 28.51 9.030 3.45461 5.07590 32.25 1483.40 1025.089 29.06 28.92 9.022 3.45542 5.07815 32.26 1483.40 1025.104