*2026/01/16 10:37:51.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 21:54:29.000 END TIME : UTC 2025/04/09 21:54:52.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 120 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.84 2 Depth metres 0.15 35.76 3 Temperature 'deg C (ITS90)' 8.581 10.433 4 Conductivity S/m 0.77188 3.30532 5 Conductance:Specific S/m 1.09427 4.80715 6 Salinity PSS-78 6.1 30.4 7 Speed:Sound m/s 1455.86 1482.6 8 Density kg/m^3 1004.442 1023.628 $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 : 103 LATITUDE : 49 43.90900 N ! (deg min) LONGITUDE : 126 27.38370 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_215429 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 120 120 MERGEHDR 1.3 2026/01/16 10:35:41 120 120 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 120 120 CALIB 12.1 2026/01/16 10:37:15 120 120 CLEAN 5.3 2026/01/16 10:37:51 120 120 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:12 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:15 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 10.269 0.77188 1.09427 6.10 1455.86 1004.442 0.45 0.46 10.433 1.06392 1.50130 8.58 1459.50 1006.351 0.75 0.76 10.399 1.12412 1.58779 9.11 1460.02 1006.771 1.05 1.06 10.431 1.23781 1.74681 10.10 1461.34 1007.537 1.35 1.37 10.334 1.66190 2.35171 13.94 1465.61 1010.529 1.65 1.67 10.211 2.18998 3.10976 18.90 1471.14 1014.393 1.95 1.97 10.132 2.54657 3.62427 22.34 1475.00 1017.082 2.25 2.27 9.972 2.68573 3.83982 23.79 1476.17 1018.234 2.55 2.57 9.835 2.73619 3.92736 24.38 1476.37 1018.710 2.85 2.87 9.709 2.80159 4.03579 25.11 1476.79 1019.297 3.15 3.17 9.561 2.86106 4.13918 25.80 1477.09 1019.861 3.45 3.47 9.437 2.91549 4.23311 26.43 1477.40 1020.374 3.75 3.77 9.366 2.94429 4.28377 26.78 1477.55 1020.651 4.05 4.07 9.297 2.96718 4.32566 27.06 1477.64 1020.882 4.35 4.37 9.169 2.99216 4.37853 27.41 1477.59 1021.175 4.65 4.67 9.042 3.00473 4.41332 27.63 1477.40 1021.371 4.95 4.97 8.944 3.02504 4.45596 27.91 1477.38 1021.607 5.25 5.27 8.903 3.03873 4.48150 28.09 1477.44 1021.749 5.55 5.57 8.872 3.04674 4.49740 28.19 1477.46 1021.837 5.85 5.87 8.813 3.05097 4.51149 28.28 1477.35 1021.917 6.15 6.17 8.768 3.05253 4.51986 28.33 1477.25 1021.966 6.45 6.46 8.733 3.05280 4.52493 28.36 1477.16 1021.996 6.75 6.76 8.715 3.05324 4.52803 28.38 1477.12 1022.015 7.05 7.06 8.700 3.05380 4.53082 28.40 1477.09 1022.032 7.35 7.36 8.692 3.05486 4.53345 28.42 1477.09 1022.048 7.65 7.66 8.692 3.05595 4.53510 28.43 1477.11 1022.058 7.95 7.96 8.695 3.05773 4.53739 28.45 1477.14 1022.072 8.25 8.26 8.697 3.06066 4.54145 28.47 1477.19 1022.095 8.55 8.56 8.692 3.06067 4.54213 28.48 1477.18 1022.100 8.85 8.86 8.692 3.06015 4.54134 28.47 1477.18 1022.097 9.15 9.16 8.696 3.06231 4.54409 28.49 1477.22 1022.113 9.45 9.46 8.702 3.06365 4.54527 28.50 1477.26 1022.121 9.75 9.76 8.708 3.06405 4.54503 28.50 1477.29 1022.120 10.05 10.05 8.713 3.06392 4.54414 28.49 1477.30 1022.117 10.35 10.35 8.712 3.06446 4.54508 28.50 1477.31 1022.123 10.65 10.65 8.706 3.06605 4.54817 28.52 1477.32 1022.141 10.95 10.95 8.699 3.06699 4.55059 28.54 1477.32 1022.156 11.25 11.25 8.698 3.06707 4.55076 28.54 1477.32 1022.158 11.55 11.55 8.703 3.06724 4.55044 28.54 1477.34 1022.158 11.85 11.85 8.696 3.06717 4.55118 28.54 1477.33 1022.163 12.15 12.15 8.688 3.06729 4.55249 28.55 1477.31 1022.172 12.45 12.45 8.682 3.06822 4.55474 28.56 1477.31 1022.186 12.75 12.75 8.677 3.06908 4.55659 28.57 1477.31 1022.197 13.05 13.05 8.677 3.07007 4.55809 28.58 1477.33 1022.206 13.35 13.35 8.676 3.06991 4.55795 28.58 1477.33 1022.207 13.65 13.64 8.676 3.07036 4.55872 28.59 1477.34 1022.213 13.95 13.94 8.671 3.07034 4.55930 28.59 1477.33 1022.217 14.25 14.24 8.669 3.07149 4.56136 28.61 1477.34 1022.230 14.55 14.54 8.668 3.07128 4.56117 28.60 1477.34 1022.230 14.85 14.84 8.666 3.07171 4.56207 28.61 1477.35 1022.236 15.15 15.14 8.662 3.07365 4.56549 28.63 1477.36 1022.256 15.45 15.44 8.656 3.07401 4.56676 28.64 1477.36 1022.265 15.75 15.74 8.650 3.07396 4.56755 28.65 1477.35 1022.270 16.05 16.04 8.647 3.07384 4.56781 28.65 1477.34 1022.273 16.35 16.34 8.641 3.07457 4.56966 28.66 1477.34 1022.285 16.65 16.64 8.634 3.07494 4.57114 28.67 1477.33 1022.294 16.95 16.94 8.627 3.07501 4.57218 28.67 1477.31 1022.301 17.25 17.23 8.623 3.07577 4.57386 28.69 1477.32 1022.312 17.55 17.53 8.620 3.07611 4.57486 28.69 1477.32 1022.319 17.85 17.83 8.616 3.07731 4.57718 28.71 1477.33 1022.333 18.15 18.13 8.612 3.07787 4.57851 28.72 1477.33 1022.341 18.45 18.43 8.615 3.07844 4.57893 28.72 1477.35 1022.345 18.75 18.73 8.608 3.07923 4.58111 28.73 1477.34 1022.358 19.05 19.03 8.603 3.07935 4.58202 28.74 1477.33 1022.365 19.35 19.33 8.601 3.07922 4.58208 28.74 1477.33 1022.366 19.65 19.63 8.596 3.08007 4.58402 28.75 1477.33 1022.378 19.95 19.93 8.591 3.08005 4.58466 28.75 1477.32 1022.383 20.25 20.23 8.587 3.08211 4.58825 28.78 1477.34 1022.404 20.55 20.52 8.584 3.08223 4.58877 28.78 1477.34 1022.409 20.85 20.82 8.583 3.08458 4.59250 28.81 1477.37 1022.430 21.15 21.12 8.582 3.08804 4.59778 28.84 1477.42 1022.460 21.45 21.42 8.581 3.08924 4.59971 28.86 1477.44 1022.472 21.75 21.72 8.581 3.09077 4.60202 28.87 1477.46 1022.486 22.05 22.02 8.581 3.09327 4.60570 28.90 1477.50 1022.507 22.35 22.32 8.583 3.09695 4.61082 28.93 1477.56 1022.536 22.65 22.62 8.587 3.10173 4.61743 28.98 1477.63 1022.573 22.95 22.92 8.590 3.10329 4.61936 28.99 1477.66 1022.584 23.25 23.22 8.597 3.10613 4.62268 29.02 1477.72 1022.604 23.55 23.52 8.608 3.10973 4.62650 29.05 1477.80 1022.625 23.85 23.81 8.617 3.11355 4.63095 29.08 1477.88 1022.650 24.15 24.11 8.627 3.11856 4.63697 29.12 1477.98 1022.684 24.45 24.41 8.635 3.12109 4.63971 29.14 1478.04 1022.700 24.75 24.71 8.640 3.12443 4.64389 29.17 1478.10 1022.723 25.05 25.01 8.652 3.12574 4.64428 29.17 1478.15 1022.726 25.35 25.31 8.659 3.12826 4.64703 29.19 1478.21 1022.742 25.65 25.61 8.665 3.12943 4.64793 29.20 1478.25 1022.748 25.95 25.91 8.671 3.12937 4.64692 29.19 1478.27 1022.744 26.25 26.21 8.679 3.13067 4.64774 29.20 1478.31 1022.749 26.55 26.51 8.690 3.13382 4.65102 29.23 1478.38 1022.768 26.85 26.80 8.700 3.13862 4.65670 29.27 1478.48 1022.800 27.15 27.10 8.710 3.14152 4.65969 29.29 1478.55 1022.817 27.45 27.40 8.719 3.14373 4.66164 29.30 1478.61 1022.828 27.75 27.70 8.732 3.14763 4.66567 29.33 1478.69 1022.851 28.05 28.00 8.741 3.15031 4.66831 29.35 1478.76 1022.866 28.35 28.30 8.753 3.15419 4.67247 29.38 1478.84 1022.890 28.65 28.60 8.768 3.15792 4.67584 29.41 1478.94 1022.909 28.95 28.90 8.788 3.16181 4.67891 29.43 1479.05 1022.926 29.25 29.20 8.815 3.16622 4.68167 29.45 1479.18 1022.941 29.55 29.49 8.849 3.17974 4.69701 29.57 1479.45 1023.024 29.85 29.79 8.869 3.18490 4.70175 29.60 1479.58 1023.050 30.15 30.09 8.902 3.18961 4.70422 29.62 1479.73 1023.064 30.45 30.39 8.949 3.19985 4.71275 29.69 1479.99 1023.109 30.75 30.69 8.995 3.21806 4.73310 29.84 1480.35 1023.219 31.05 30.99 9.032 3.23291 4.74987 29.96 1480.64 1023.311 31.35 31.29 9.060 3.23922 4.75516 30.00 1480.80 1023.339 31.65 31.59 9.086 3.24454 4.75935 30.03 1480.94 1023.362 31.95 31.89 9.119 3.24717 4.75857 30.03 1481.07 1023.358 32.25 32.18 9.131 3.24746 4.75728 30.02 1481.11 1023.351 32.55 32.48 9.131 3.24975 4.76074 30.05 1481.14 1023.372 32.85 32.78 9.136 3.25122 4.76214 30.06 1481.18 1023.380 33.15 33.08 9.145 3.25368 4.76452 30.07 1481.24 1023.394 33.45 33.38 9.157 3.25622 4.76650 30.09 1481.31 1023.406 33.75 33.68 9.167 3.26004 4.77070 30.12 1481.39 1023.429 34.05 33.98 9.183 3.26540 4.77633 30.16 1481.50 1023.460 34.35 34.28 9.206 3.26876 4.77809 30.18 1481.61 1023.470 34.65 34.58 9.226 3.27398 4.78295 30.21 1481.73 1023.497 34.95 34.87 9.249 3.28440 4.79487 30.30 1481.93 1023.562 35.25 35.17 9.288 3.29478 4.80453 30.37 1482.17 1023.614 35.55 35.47 9.337 3.30124 4.80715 30.40 1482.38 1023.628 35.84 35.76 9.396 3.30532 4.80482 30.39 1482.60 1023.613