*2026/01/16 09:57:47.21 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/30 20:45:21.000 END TIME : UTC 2024/01/30 20:45:46.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 130 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.75 2 Depth metres 0.15 38.65 3 Temperature 'deg C (ITS90)' 8.123 9.958 4 Conductivity S/m 1.27815 3.48309 5 Conductance:Specific S/m 1.92588 4.99143 6 Salinity PSS-78 11.14 31.76 7 Speed:Sound m/s 1453.75 1486.14 8 Density kg/m^3 1008.577 1024.621 $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 : 20 LATITUDE : 49 40.14780 N ! (deg min) LONGITUDE : 126 29.08830 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240130_204521 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 130 130 MERGEHDR 1.3 2026/01/16 09:53:44 130 130 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 130 130 CALIB 12.1 2026/01/16 09:56:45 130 130 CLEAN 5.3 2026/01/16 09:57:47 130 130 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 8.184 1.27815 1.92588 11.14 1453.78 1008.577 0.45 0.45 8.165 1.28064 1.93070 11.17 1453.75 1008.603 0.75 0.76 8.133 1.29274 1.95086 11.29 1453.77 1008.705 1.05 1.06 8.125 1.29973 1.96188 11.36 1453.83 1008.761 1.35 1.36 8.123 1.30865 1.97546 11.45 1453.93 1008.829 1.65 1.67 8.127 1.32518 2.00013 11.60 1454.15 1008.951 1.95 1.97 8.144 1.35900 2.05017 11.92 1454.60 1009.198 2.25 2.27 8.218 1.41758 2.13376 12.45 1455.56 1009.607 2.55 2.58 8.327 1.53371 2.30099 13.52 1457.32 1010.431 2.85 2.88 8.419 1.58445 2.37061 13.96 1458.24 1010.774 3.15 3.18 8.461 1.63204 2.43869 14.40 1458.95 1011.114 3.45 3.48 8.555 1.73084 2.57907 15.31 1460.44 1011.815 3.75 3.79 8.686 1.92952 2.86396 17.17 1463.24 1013.252 4.05 4.09 8.908 2.30520 3.39916 20.73 1468.45 1015.998 4.35 4.39 9.032 2.42564 3.56380 21.84 1470.28 1016.852 4.65 4.69 9.115 2.49121 3.65121 22.44 1471.33 1017.307 4.95 4.99 9.169 2.57736 3.77144 23.25 1472.54 1017.938 5.25 5.29 9.171 2.68506 3.92891 24.32 1473.85 1018.773 5.55 5.59 9.194 2.74242 4.01013 24.88 1474.62 1019.205 5.85 5.89 9.271 2.84716 4.15395 25.87 1476.13 1019.970 6.15 6.19 9.316 2.89346 4.21591 26.30 1476.83 1020.300 6.45 6.49 9.326 2.95124 4.29879 26.87 1477.57 1020.746 6.75 6.79 9.327 2.97511 4.33349 27.11 1477.87 1020.934 7.05 7.09 9.351 3.00009 4.36687 27.35 1478.25 1021.114 7.35 7.39 9.382 3.10298 4.51252 28.36 1479.60 1021.901 7.65 7.69 9.404 3.17647 4.61646 29.08 1480.57 1022.465 7.95 7.99 9.417 3.23405 4.69827 29.66 1481.33 1022.911 8.25 8.28 9.434 3.24655 4.71420 29.77 1481.53 1022.999 8.55 8.58 9.439 3.25077 4.71965 29.81 1481.60 1023.029 8.85 8.88 9.442 3.25320 4.72278 29.83 1481.64 1023.047 9.15 9.18 9.442 3.25534 4.72579 29.85 1481.68 1023.065 9.45 9.48 9.443 3.25926 4.73145 29.89 1481.73 1023.097 9.75 9.78 9.442 3.26171 4.73504 29.92 1481.76 1023.118 10.05 10.08 9.443 3.26253 4.73616 29.92 1481.78 1023.126 10.35 10.38 9.444 3.26513 4.73972 29.95 1481.82 1023.146 10.65 10.68 9.450 3.26702 4.74161 29.96 1481.87 1023.157 10.95 10.97 9.459 3.26829 4.74229 29.97 1481.91 1023.162 11.25 11.27 9.467 3.27505 4.75096 30.03 1482.02 1023.210 11.55 11.57 9.474 3.27936 4.75635 30.07 1482.10 1023.241 11.85 11.87 9.479 3.28218 4.75969 30.09 1482.15 1023.260 12.15 12.17 9.486 3.28435 4.76190 30.11 1482.20 1023.273 12.45 12.47 9.495 3.29076 4.76988 30.17 1482.31 1023.317 12.75 12.77 9.502 3.29603 4.77660 30.21 1482.40 1023.355 13.05 13.07 9.504 3.30151 4.78421 30.27 1482.48 1023.398 13.35 13.36 9.499 3.30490 4.78987 30.31 1482.51 1023.430 13.65 13.66 9.487 3.30485 4.79141 30.32 1482.48 1023.440 13.95 13.96 9.473 3.30436 4.79267 30.32 1482.44 1023.449 14.25 14.26 9.460 3.30573 4.79644 30.35 1482.43 1023.472 14.55 14.56 9.443 3.30694 4.80059 30.37 1482.40 1023.497 14.85 14.86 9.425 3.30886 4.80586 30.41 1482.39 1023.528 15.15 15.16 9.417 3.31166 4.81101 30.44 1482.40 1023.558 15.45 15.46 9.419 3.31207 4.81143 30.45 1482.42 1023.561 15.75 15.76 9.399 3.31431 4.81749 30.49 1482.40 1023.597 16.05 16.05 9.384 3.31591 4.82193 30.51 1482.38 1023.623 16.35 16.35 9.377 3.31728 4.82481 30.53 1482.39 1023.641 16.65 16.65 9.382 3.32000 4.82811 30.56 1482.44 1023.660 16.95 16.95 9.378 3.32386 4.83427 30.60 1482.48 1023.695 17.25 17.25 9.374 3.32529 4.83690 30.62 1482.49 1023.711 17.55 17.55 9.373 3.32498 4.83658 30.62 1482.49 1023.710 17.85 17.85 9.375 3.32701 4.83926 30.63 1482.53 1023.726 18.15 18.15 9.375 3.32707 4.83935 30.64 1482.53 1023.728 18.45 18.44 9.376 3.32793 4.84050 30.64 1482.55 1023.736 18.75 18.74 9.380 3.32979 4.84267 30.66 1482.59 1023.749 19.05 19.04 9.382 3.33233 4.84610 30.68 1482.63 1023.768 19.35 19.34 9.386 3.33579 4.85049 30.71 1482.69 1023.794 19.65 19.64 9.391 3.33856 4.85377 30.74 1482.74 1023.813 19.95 19.94 9.396 3.34060 4.85605 30.75 1482.78 1023.826 20.25 20.24 9.400 3.34124 4.85640 30.76 1482.81 1023.829 20.55 20.53 9.422 3.34621 4.86063 30.79 1482.93 1023.852 20.85 20.83 9.458 3.34998 4.86092 30.80 1483.08 1023.853 21.15 21.13 9.478 3.35225 4.86138 30.80 1483.17 1023.856 21.45 21.43 9.515 3.35744 4.86381 30.82 1483.33 1023.869 21.75 21.73 9.573 3.36705 4.86955 30.87 1483.61 1023.898 22.05 22.03 9.608 3.36840 4.86651 30.85 1483.72 1023.881 22.35 22.33 9.616 3.37465 4.87444 30.91 1483.82 1023.925 22.65 22.63 9.617 3.38325 4.88674 31.00 1483.94 1023.994 22.95 22.92 9.649 3.38599 4.88607 31.00 1484.06 1023.989 23.25 23.22 9.678 3.38664 4.88303 30.98 1484.15 1023.972 23.55 23.52 9.686 3.38642 4.88152 30.97 1484.17 1023.965 23.85 23.82 9.675 3.38568 4.88201 30.97 1484.14 1023.969 24.15 24.12 9.658 3.38444 4.88260 30.97 1484.08 1023.975 24.45 24.42 9.640 3.38256 4.88238 30.97 1484.02 1023.976 24.75 24.72 9.629 3.38055 4.88114 30.96 1483.97 1023.971 25.05 25.01 9.613 3.38234 4.88599 30.99 1483.95 1024.000 25.35 25.31 9.619 3.38518 4.88924 31.01 1484.01 1024.019 25.65 25.61 9.629 3.38773 4.89149 31.03 1484.07 1024.032 25.95 25.91 9.637 3.38963 4.89314 31.04 1484.12 1024.042 26.25 26.21 9.668 3.39630 4.89838 31.08 1484.29 1024.070 26.55 26.51 9.683 3.40002 4.90158 31.11 1484.38 1024.088 26.85 26.81 9.691 3.40059 4.90123 31.11 1484.41 1024.087 27.15 27.10 9.706 3.40492 4.90533 31.14 1484.51 1024.110 27.45 27.40 9.719 3.40738 4.90705 31.15 1484.58 1024.120 27.75 27.70 9.738 3.40976 4.90781 31.16 1484.66 1024.124 28.05 28.00 9.744 3.41060 4.90818 31.16 1484.69 1024.127 28.35 28.30 9.756 3.41403 4.91148 31.19 1484.77 1024.146 28.65 28.60 9.765 3.41551 4.91229 31.19 1484.82 1024.151 28.95 28.90 9.771 3.41600 4.91210 31.19 1484.84 1024.151 29.25 29.19 9.774 3.41663 4.91265 31.20 1484.86 1024.155 29.55 29.49 9.780 3.41828 4.91410 31.21 1484.91 1024.164 29.85 29.79 9.789 3.42163 4.91768 31.23 1484.97 1024.184 30.15 30.09 9.798 3.42511 4.92140 31.26 1485.05 1024.205 30.45 30.39 9.810 3.43160 4.92906 31.32 1485.16 1024.248 30.75 30.69 9.822 3.43438 4.93133 31.33 1485.23 1024.261 31.05 30.99 9.839 3.43741 4.93322 31.35 1485.32 1024.271 31.35 31.28 9.851 3.43950 4.93464 31.36 1485.38 1024.280 31.65 31.58 9.860 3.44331 4.93881 31.39 1485.45 1024.303 31.95 31.88 9.875 3.45055 4.94699 31.45 1485.59 1024.349 32.25 32.18 9.892 3.45524 4.95140 31.48 1485.69 1024.373 32.55 32.48 9.904 3.45737 4.95274 31.50 1485.75 1024.381 32.85 32.78 9.917 3.45990 4.95443 31.51 1485.82 1024.391 33.15 33.08 9.934 3.46494 4.95920 31.55 1485.93 1024.417 33.45 33.37 9.951 3.47110 4.96560 31.59 1486.06 1024.453 33.75 33.67 9.958 3.47489 4.97006 31.62 1486.13 1024.478 34.05 33.97 9.933 3.47442 4.97293 31.64 1486.06 1024.497 34.35 34.27 9.894 3.46626 4.96681 31.59 1485.87 1024.467 34.65 34.57 9.857 3.46627 4.97210 31.63 1485.78 1024.500 34.95 34.87 9.847 3.46509 4.97191 31.62 1485.74 1024.500 35.25 35.17 9.839 3.46283 4.96981 31.61 1485.70 1024.491 35.55 35.46 9.820 3.46145 4.97043 31.61 1485.64 1024.496 35.85 35.76 9.807 3.46174 4.97276 31.62 1485.61 1024.511 36.15 36.06 9.799 3.46482 4.97831 31.66 1485.63 1024.544 36.45 36.36 9.804 3.46694 4.98066 31.68 1485.68 1024.557 36.75 36.66 9.811 3.46700 4.97980 31.67 1485.70 1024.554 37.05 36.96 9.814 3.46843 4.98132 31.68 1485.73 1024.563 37.35 37.25 9.820 3.47058 4.98355 31.70 1485.78 1024.576 37.65 37.55 9.840 3.47315 4.98438 31.71 1485.87 1024.581 37.95 37.85 9.848 3.47543 4.98660 31.73 1485.92 1024.594 38.25 38.15 9.860 3.47736 4.98761 31.73 1485.98 1024.600 38.55 38.45 9.875 3.47938 4.98831 31.74 1486.05 1024.604 38.75 38.65 9.891 3.48309 4.99143 31.76 1486.14 1024.621