*2026/01/16 10:37:59.59 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/23 19:04:04.000 END TIME : UTC 2025/07/23 19:04:32.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 143 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.76 2 Depth metres 0.15 42.55 3 Temperature 'deg C (ITS90)' 8.844 19.44 4 Conductivity S/m 3.46954 3.94441 5 Conductance:Specific S/m 4.30798 5.12572 6 Salinity PSS-78 27.61 32.56 7 Speed:Sound m/s 1483.33 1511.77 8 Density kg/m^3 1019.317 1025.431 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 242 LATITUDE : 49 43.79080 N ! (deg min) LONGITUDE : 126 27.27030 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250723_190404 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 143 143 MERGEHDR 1.3 2026/01/16 10:35:49 143 143 HDREDIT2 3.2 2026/01/16 10:36:20 ? ? REMOVECH 8.2 2026/01/16 10:36:52 143 143 CALIB 12.1 2026/01/16 10:37:23 143 143 CLEAN 5.3 2026/01/16 10:37:59 143 143 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:20 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 10:36:52 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:23 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 10:37:42 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 19.440 3.84346 4.32432 27.73 1511.77 1019.368 0.45 0.45 19.277 3.81492 4.30798 27.61 1511.17 1019.317 0.75 0.75 19.136 3.81476 4.32163 27.70 1510.87 1019.424 1.05 1.05 19.016 3.85021 4.37365 28.07 1510.94 1019.733 1.35 1.35 19.037 3.85275 4.37445 28.07 1511.01 1019.734 1.65 1.65 19.030 3.84582 4.36723 28.02 1510.94 1019.698 1.95 1.95 19.001 3.84061 4.36426 28.00 1510.83 1019.689 2.25 2.25 18.966 3.88878 4.42250 28.41 1511.20 1020.015 2.55 2.55 18.871 3.90100 4.44597 28.58 1511.11 1020.164 2.85 2.85 18.704 3.93187 4.49833 28.95 1511.04 1020.487 3.15 3.15 18.376 3.94441 4.54679 29.28 1510.47 1020.823 3.45 3.45 17.825 3.94093 4.60119 29.65 1509.25 1021.235 3.75 3.75 17.242 3.90620 4.62361 29.78 1507.66 1021.475 4.05 4.05 16.817 3.88501 4.64529 29.91 1506.52 1021.676 4.35 4.35 16.536 3.87818 4.66850 30.07 1505.84 1021.857 4.65 4.65 16.118 3.86745 4.70282 30.29 1504.80 1022.122 4.95 4.94 15.485 3.83932 4.74165 30.53 1503.10 1022.446 5.25 5.24 14.637 3.77665 4.76407 30.63 1500.51 1022.707 5.55 5.54 14.175 3.74198 4.77601 30.68 1499.07 1022.843 5.85 5.84 13.762 3.72257 4.80186 30.83 1497.90 1023.045 6.15 6.14 13.329 3.70243 4.82975 31.00 1496.66 1023.258 6.45 6.44 12.885 3.68200 4.85938 31.17 1495.38 1023.479 6.75 6.74 12.576 3.67564 4.89097 31.37 1494.57 1023.691 7.05 7.04 12.354 3.67430 4.91824 31.54 1494.02 1023.868 7.35 7.34 12.206 3.67077 4.93307 31.63 1493.63 1023.968 7.65 7.63 12.086 3.66675 4.94361 31.69 1493.30 1024.040 7.95 7.93 11.965 3.66079 4.95174 31.74 1492.94 1024.099 8.25 8.23 11.858 3.65598 4.95958 31.78 1492.63 1024.155 8.55 8.53 11.778 3.65359 4.96712 31.83 1492.41 1024.206 8.85 8.83 11.718 3.65110 4.97181 31.85 1492.24 1024.239 9.15 9.13 11.676 3.64911 4.97478 31.87 1492.12 1024.261 9.45 9.43 11.616 3.64835 4.98189 31.91 1491.97 1024.307 9.75 9.72 11.553 3.64391 4.98441 31.93 1491.77 1024.329 10.05 10.02 11.505 3.64140 4.98747 31.94 1491.62 1024.351 10.35 10.32 11.461 3.63782 4.98864 31.95 1491.48 1024.363 10.65 10.62 11.417 3.63525 4.99108 31.96 1491.35 1024.382 10.95 10.92 11.384 3.63059 4.98920 31.94 1491.22 1024.376 11.25 11.22 11.339 3.62788 4.99172 31.95 1491.08 1024.396 11.55 11.51 11.299 3.62601 4.99470 31.97 1490.96 1024.417 11.85 11.81 11.265 3.62258 4.99457 31.97 1490.84 1024.421 12.15 12.11 11.211 3.62063 4.99941 31.99 1490.69 1024.453 12.45 12.41 11.140 3.61878 5.00663 32.04 1490.50 1024.501 12.75 12.71 11.089 3.61621 5.01011 32.06 1490.35 1024.526 13.05 13.01 11.064 3.61515 5.01217 32.07 1490.28 1024.541 13.35 13.31 11.052 3.61499 5.01360 32.08 1490.25 1024.551 13.65 13.60 11.040 3.61508 5.01531 32.09 1490.23 1024.563 13.95 13.90 11.034 3.61548 5.01677 32.10 1490.22 1024.573 14.25 14.20 11.037 3.61598 5.01707 32.10 1490.24 1024.575 14.55 14.50 11.052 3.61734 5.01689 32.10 1490.30 1024.574 14.85 14.80 11.069 3.62689 5.02767 32.18 1490.46 1024.634 15.15 15.10 11.088 3.62931 5.02848 32.18 1490.54 1024.638 15.45 15.40 11.086 3.63035 5.03010 32.20 1490.55 1024.648 15.75 15.69 11.082 3.62903 5.02890 32.19 1490.53 1024.643 16.05 15.99 11.054 3.62699 5.03001 32.19 1490.44 1024.653 16.35 16.29 11.040 3.62741 5.03253 32.21 1490.41 1024.669 16.65 16.59 11.034 3.62384 5.02837 32.18 1490.36 1024.648 16.95 16.89 11.014 3.62121 5.02754 32.17 1490.29 1024.646 17.25 17.19 10.984 3.61790 5.02713 32.16 1490.18 1024.648 17.55 17.48 10.945 3.61526 5.02888 32.17 1490.06 1024.662 17.85 17.78 10.923 3.61512 5.03170 32.19 1490.00 1024.681 18.15 18.08 10.909 3.61391 5.03208 32.19 1489.96 1024.685 18.45 18.38 10.884 3.61142 5.03214 32.19 1489.87 1024.689 18.75 18.68 10.858 3.60859 5.03176 32.18 1489.78 1024.690 19.05 18.98 10.843 3.60644 5.03082 32.17 1489.72 1024.688 19.35 19.27 10.824 3.60533 5.03207 32.18 1489.66 1024.697 19.65 19.57 10.806 3.60420 5.03290 32.18 1489.61 1024.704 19.95 19.87 10.792 3.60319 5.03350 32.18 1489.57 1024.710 20.25 20.17 10.776 3.60256 5.03493 32.19 1489.53 1024.721 20.55 20.47 10.760 3.60114 5.03517 32.19 1489.47 1024.725 20.85 20.77 10.741 3.59771 5.03304 32.17 1489.39 1024.716 21.15 21.07 10.716 3.59520 5.03306 32.17 1489.30 1024.719 21.45 21.36 10.691 3.59368 5.03441 32.18 1489.23 1024.730 21.75 21.66 10.677 3.59242 5.03465 32.18 1489.18 1024.733 22.05 21.96 10.661 3.58980 5.03329 32.17 1489.11 1024.728 22.35 22.26 10.641 3.58962 5.03581 32.18 1489.07 1024.745 22.65 22.56 10.615 3.58777 5.03683 32.18 1488.99 1024.754 22.95 22.86 10.582 3.58562 5.03852 32.19 1488.88 1024.767 23.25 23.15 10.568 3.58302 5.03687 32.18 1488.82 1024.760 23.55 23.45 10.535 3.58063 5.03816 32.18 1488.71 1024.771 23.85 23.75 10.498 3.57674 5.03790 32.18 1488.58 1024.774 24.15 24.05 10.465 3.57326 5.03776 32.17 1488.46 1024.777 24.45 24.35 10.435 3.57093 5.03873 32.18 1488.36 1024.785 24.75 24.65 10.399 3.56946 5.04172 32.19 1488.26 1024.806 25.05 24.94 10.369 3.56786 5.04382 32.20 1488.17 1024.821 25.35 25.24 10.340 3.56622 5.04553 32.21 1488.08 1024.834 25.65 25.54 10.282 3.56341 5.04985 32.23 1487.91 1024.863 25.95 25.84 10.196 3.55328 5.04783 32.21 1487.57 1024.859 26.25 26.14 10.144 3.54390 5.04202 32.16 1487.33 1024.832 26.55 26.44 10.095 3.53937 5.04249 32.16 1487.15 1024.839 26.85 26.73 10.037 3.53718 5.04774 32.19 1486.98 1024.873 27.15 27.03 9.976 3.53533 5.05395 32.22 1486.81 1024.912 27.45 27.33 9.941 3.53309 5.05582 32.23 1486.70 1024.926 27.75 27.63 9.925 3.53263 5.05739 32.24 1486.66 1024.937 28.05 27.93 9.907 3.53200 5.05911 32.25 1486.61 1024.949 28.35 28.23 9.888 3.52877 5.05730 32.23 1486.53 1024.941 28.65 28.53 9.865 3.52765 5.05904 32.24 1486.46 1024.953 28.95 28.82 9.841 3.52633 5.06060 32.25 1486.39 1024.965 29.25 29.12 9.812 3.52232 5.05913 32.24 1486.27 1024.960 29.55 29.42 9.771 3.51870 5.05980 32.24 1486.12 1024.967 29.85 29.72 9.742 3.51777 5.06277 32.25 1486.04 1024.986 30.15 30.02 9.720 3.51740 5.06536 32.27 1485.99 1025.003 30.45 30.32 9.709 3.51685 5.06616 32.27 1485.96 1025.009 30.75 30.61 9.698 3.51642 5.06717 32.28 1485.93 1025.017 31.05 30.91 9.691 3.51665 5.06854 32.29 1485.92 1025.026 31.35 31.21 9.687 3.51566 5.06767 32.28 1485.90 1025.023 31.65 31.51 9.674 3.51565 5.06958 32.29 1485.87 1025.035 31.95 31.81 9.654 3.51463 5.07100 32.30 1485.81 1025.046 32.25 32.11 9.635 3.51243 5.07069 32.29 1485.74 1025.046 32.55 32.40 9.621 3.51071 5.07018 32.29 1485.69 1025.045 32.85 32.70 9.595 3.50935 5.07203 32.30 1485.61 1025.058 33.15 33.00 9.567 3.50804 5.07433 32.31 1485.53 1025.074 33.45 33.30 9.535 3.50676 5.07704 32.32 1485.44 1025.092 33.75 33.60 9.491 3.50321 5.07841 32.33 1485.28 1025.103 34.05 33.90 9.440 3.49856 5.07914 32.33 1485.10 1025.111 34.35 34.19 9.392 3.49746 5.08475 32.36 1484.96 1025.145 34.65 34.49 9.353 3.49405 5.08547 32.36 1484.83 1025.153 34.95 34.79 9.316 3.49256 5.08886 32.38 1484.72 1025.174 35.25 35.09 9.287 3.49144 5.09146 32.39 1484.63 1025.191 35.55 35.39 9.270 3.49194 5.09468 32.41 1484.60 1025.211 35.85 35.68 9.258 3.49090 5.09504 32.41 1484.56 1025.215 36.15 35.98 9.251 3.49033 5.09521 32.41 1484.54 1025.218 36.45 36.28 9.244 3.48983 5.09561 32.41 1484.52 1025.221 36.75 36.58 9.231 3.48870 5.09586 32.41 1484.48 1025.225 37.05 36.88 9.213 3.48767 5.09692 32.42 1484.43 1025.232 37.35 37.18 9.205 3.48734 5.09769 32.42 1484.40 1025.238 37.65 37.47 9.197 3.48751 5.09920 32.43 1484.39 1025.248 37.95 37.77 9.194 3.48696 5.09885 32.43 1484.38 1025.248 38.25 38.07 9.187 3.48792 5.10123 32.44 1484.38 1025.262 38.55 38.37 9.189 3.48724 5.09997 32.44 1484.38 1025.257 38.85 38.67 9.189 3.48664 5.09903 32.43 1484.38 1025.253 39.15 38.97 9.181 3.48467 5.09736 32.42 1484.34 1025.245 39.45 39.26 9.142 3.48085 5.09754 32.41 1484.19 1025.249 39.75 39.56 9.086 3.47955 5.10413 32.45 1484.04 1025.289 40.05 39.86 9.050 3.47836 5.10780 32.47 1483.93 1025.312 40.35 40.16 9.022 3.47680 5.10958 32.48 1483.85 1025.325 40.65 40.46 8.992 3.47610 5.11315 32.50 1483.76 1025.347 40.95 40.76 8.970 3.47533 5.11531 32.51 1483.70 1025.361 41.25 41.05 8.953 3.47392 5.11584 32.51 1483.64 1025.366 41.55 41.35 8.931 3.47251 5.11697 32.52 1483.58 1025.374 41.85 41.65 8.904 3.47069 5.11840 32.52 1483.49 1025.384 42.15 41.95 8.874 3.47079 5.12301 32.55 1483.42 1025.412 42.45 42.25 8.856 3.46999 5.12466 32.56 1483.36 1025.423 42.76 42.55 8.844 3.46954 5.12572 32.56 1483.33 1025.431