*2026/01/16 10:37:49.13 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 23:21:37.000 END TIME : UTC 2025/02/20 23:22:00.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 117 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.04 2 Depth metres 0.15 34.9 3 Temperature 'deg C (ITS90)' 6.091 11.351 4 Conductivity S/m 0.45494 3.61325 5 Conductance:Specific S/m 0.73164 4.99377 6 Salinity PSS-78 3.9 31.92 7 Speed:Sound m/s 1436 1491.07 8 Density kg/m^3 1003.04 1024.536 $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 : 66 LATITUDE : 50 8.36360 N ! (deg min) LONGITUDE : 127 6.02240 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_232137 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 117 117 MERGEHDR 1.3 2026/01/16 10:35:40 117 117 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 117 117 CALIB 12.1 2026/01/16 10:37:12 117 117 CLEAN 5.3 2026/01/16 10:37:49 117 117 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 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 6.091 0.45494 0.73164 3.90 1436.00 1003.040 0.45 0.46 6.862 0.50978 0.79998 4.31 1439.82 1003.322 0.75 0.76 7.893 0.82210 1.24965 6.98 1447.46 1005.351 1.05 1.06 8.439 2.20406 3.29565 20.00 1465.69 1015.473 1.35 1.37 8.479 2.61624 3.90727 24.10 1470.88 1018.677 1.65 1.66 8.480 2.97248 4.43924 27.74 1475.36 1021.523 1.95 1.96 8.647 3.14803 4.67796 29.42 1478.06 1022.811 2.25 2.26 8.854 3.18118 4.69841 29.59 1479.05 1022.915 2.55 2.56 9.112 3.20444 4.69698 29.61 1480.05 1022.897 2.85 2.86 9.302 3.26935 4.76553 30.11 1481.37 1023.263 3.15 3.16 9.366 3.29182 4.78934 30.29 1481.83 1023.391 3.45 3.46 9.431 3.30630 4.80131 30.38 1482.19 1023.454 3.75 3.76 9.532 3.31900 4.80563 30.43 1482.62 1023.474 4.05 4.06 9.603 3.32735 4.80787 30.45 1482.91 1023.483 4.35 4.35 9.651 3.33874 4.81772 30.52 1483.18 1023.536 4.65 4.65 9.681 3.34715 4.82561 30.58 1483.37 1023.578 4.95 4.95 9.707 3.35291 4.83030 30.62 1483.52 1023.604 5.25 5.25 9.738 3.36136 4.83815 30.68 1483.71 1023.646 5.55 5.55 9.778 3.36860 4.84295 30.72 1483.91 1023.672 5.85 5.85 9.820 3.37527 4.84672 30.75 1484.10 1023.691 6.15 6.15 9.890 3.38739 4.85444 30.81 1484.44 1023.730 6.45 6.45 9.940 3.40455 4.87193 30.94 1484.78 1023.824 6.75 6.74 9.976 3.41514 4.88214 31.02 1485.01 1023.879 7.05 7.04 10.035 3.42082 4.88205 31.02 1485.24 1023.876 7.35 7.34 10.086 3.42657 4.88307 31.04 1485.45 1023.880 7.65 7.64 10.123 3.43357 4.88798 31.08 1485.63 1023.906 7.95 7.94 10.154 3.43832 4.89030 31.10 1485.77 1023.917 8.25 8.24 10.188 3.44635 4.89703 31.15 1485.96 1023.953 8.55 8.54 10.215 3.45215 4.90156 31.18 1486.11 1023.978 8.85 8.83 10.243 3.45565 4.90260 31.19 1486.23 1023.983 9.15 9.13 10.266 3.45831 4.90324 31.20 1486.32 1023.986 9.45 9.43 10.284 3.45965 4.90253 31.20 1486.39 1023.982 9.75 9.73 10.301 3.46040 4.90125 31.19 1486.45 1023.975 10.05 10.03 10.314 3.46252 4.90244 31.20 1486.51 1023.982 10.35 10.33 10.323 3.46383 4.90307 31.21 1486.55 1023.986 10.65 10.63 10.334 3.46555 4.90393 31.21 1486.61 1023.991 10.95 10.93 10.345 3.46515 4.90194 31.20 1486.64 1023.981 11.25 11.22 10.354 3.46666 4.90280 31.21 1486.68 1023.986 11.55 11.52 10.363 3.46696 4.90197 31.20 1486.71 1023.982 11.85 11.82 10.375 3.46788 4.90163 31.20 1486.76 1023.981 12.15 12.12 10.382 3.46905 4.90227 31.21 1486.80 1023.985 12.45 12.42 10.394 3.47130 4.90376 31.22 1486.86 1023.993 12.75 12.72 10.423 3.47231 4.90126 31.21 1486.95 1023.979 13.05 13.02 10.463 3.47612 4.90108 31.21 1487.10 1023.976 13.35 13.31 10.509 3.48156 4.90233 31.22 1487.29 1023.981 13.65 13.61 10.549 3.49133 4.91056 31.29 1487.52 1024.024 13.95 13.91 10.595 3.50010 4.91660 31.33 1487.74 1024.055 14.25 14.21 10.644 3.51049 4.92441 31.39 1488.00 1024.096 14.55 14.51 10.698 3.51857 4.92822 31.43 1488.23 1024.114 14.85 14.81 10.753 3.52300 4.92684 31.42 1488.43 1024.103 15.15 15.11 10.794 3.52583 4.92513 31.42 1488.57 1024.092 15.45 15.40 10.830 3.52998 4.92599 31.43 1488.72 1024.095 15.75 15.70 10.854 3.53543 4.93032 31.46 1488.85 1024.118 16.05 16.00 10.873 3.53802 4.93135 31.47 1488.93 1024.123 16.35 16.30 10.890 3.54002 4.93180 31.47 1489.00 1024.125 16.65 16.60 10.902 3.53966 4.92961 31.46 1489.03 1024.114 16.95 16.90 10.913 3.53829 4.92621 31.44 1489.05 1024.095 17.25 17.20 10.927 3.53828 4.92431 31.43 1489.09 1024.085 17.55 17.49 10.938 3.53877 4.92338 31.42 1489.13 1024.080 17.85 17.79 10.957 3.54134 4.92438 31.43 1489.21 1024.085 18.15 18.09 10.991 3.54563 4.92578 31.44 1489.35 1024.091 18.45 18.39 11.044 3.55267 4.92830 31.47 1489.57 1024.102 18.75 18.69 11.092 3.56703 4.94153 31.57 1489.87 1024.172 19.05 18.99 11.135 3.58166 4.95590 31.67 1490.15 1024.249 19.35 19.29 11.192 3.58163 4.94813 31.62 1490.30 1024.202 19.65 19.58 11.237 3.57830 4.93731 31.55 1490.38 1024.140 19.95 19.88 11.270 3.57955 4.93457 31.54 1490.48 1024.123 20.25 20.18 11.279 3.59092 4.94900 31.64 1490.64 1024.203 20.55 20.48 11.299 3.59565 4.95286 31.67 1490.75 1024.224 20.85 20.78 11.315 3.59857 4.95472 31.68 1490.83 1024.234 21.15 21.08 11.338 3.60052 4.95418 31.68 1490.91 1024.230 21.45 21.38 11.351 3.59972 4.95127 31.66 1490.94 1024.214 21.75 21.67 11.341 3.60058 4.95395 31.68 1490.93 1024.231 22.05 21.97 11.319 3.59826 4.95370 31.68 1490.85 1024.233 22.35 22.27 11.302 3.59739 4.95486 31.68 1490.80 1024.242 22.65 22.57 11.299 3.59756 4.95548 31.69 1490.80 1024.247 22.95 22.87 11.297 3.59225 4.94840 31.64 1490.74 1024.209 23.25 23.17 11.280 3.58877 4.94600 31.62 1490.66 1024.199 23.55 23.47 11.261 3.58875 4.94855 31.63 1490.62 1024.216 23.85 23.76 11.256 3.59017 4.95116 31.65 1490.63 1024.232 24.15 24.06 11.253 3.59116 4.95291 31.66 1490.64 1024.243 24.45 24.36 11.256 3.59445 4.95700 31.69 1490.69 1024.267 24.75 24.66 11.259 3.59527 4.95782 31.70 1490.71 1024.272 25.05 24.96 11.269 3.59547 4.95671 31.69 1490.74 1024.266 25.35 25.26 11.273 3.59506 4.95562 31.68 1490.75 1024.261 25.65 25.56 11.262 3.59748 4.96041 31.72 1490.76 1024.290 25.95 25.85 11.273 3.60139 4.96430 31.75 1490.84 1024.312 26.25 26.15 11.282 3.60407 4.96671 31.76 1490.90 1024.326 26.55 26.45 11.294 3.60647 4.96846 31.78 1490.96 1024.335 26.85 26.75 11.302 3.60721 4.96838 31.78 1490.99 1024.335 27.15 27.05 11.296 3.60746 4.96945 31.78 1490.99 1024.343 27.45 27.35 11.290 3.60667 4.96921 31.78 1490.97 1024.344 27.75 27.65 11.289 3.60582 4.96821 31.77 1490.96 1024.339 28.05 27.94 11.291 3.60571 4.96777 31.77 1490.97 1024.338 28.35 28.24 11.283 3.60788 4.97179 31.80 1490.98 1024.362 28.65 28.54 11.283 3.60990 4.97465 31.82 1491.00 1024.379 28.95 28.84 11.279 3.61137 4.97722 31.84 1491.02 1024.395 29.25 29.14 11.281 3.61298 4.97912 31.85 1491.05 1024.407 29.55 29.44 11.287 3.61325 4.97877 31.85 1491.07 1024.406 29.85 29.74 11.288 3.61284 4.97805 31.84 1491.07 1024.403 30.15 30.03 11.281 3.61275 4.97883 31.85 1491.06 1024.409 30.45 30.33 11.269 3.61202 4.97951 31.85 1491.02 1024.415 30.75 30.63 11.258 3.61210 4.98116 31.86 1491.00 1024.427 31.05 30.93 11.246 3.61273 4.98363 31.88 1490.99 1024.442 31.35 31.23 11.234 3.61181 4.98403 31.88 1490.95 1024.447 31.65 31.53 11.232 3.61166 4.98404 31.88 1490.95 1024.448 31.95 31.82 11.228 3.61088 4.98359 31.87 1490.93 1024.448 32.25 32.12 11.223 3.60613 4.97763 31.83 1490.87 1024.416 32.55 32.42 11.180 3.60242 4.97846 31.83 1490.72 1024.426 32.85 32.72 11.127 3.60133 4.98422 31.87 1490.59 1024.464 33.15 33.02 11.096 3.59990 4.98656 31.88 1490.50 1024.481 33.45 33.32 11.071 3.59957 4.98953 31.90 1490.44 1024.501 33.75 33.62 11.057 3.59936 4.99120 31.91 1490.40 1024.512 34.05 33.91 11.042 3.59733 4.99051 31.90 1490.34 1024.511 34.35 34.21 11.026 3.59724 4.99250 31.91 1490.31 1024.525 34.65 34.51 10.994 3.59490 4.99377 31.92 1490.21 1024.536 35.04 34.90 10.989 3.59394 4.99307 31.91 1490.19 1024.534