*2026/01/16 10:37:46.22 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 21:19:28.000 END TIME : UTC 2025/01/23 21:19:46.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 92 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.36 2 Depth metres 0.15 27.25 3 Temperature 'deg C (ITS90)' 7.174 10.3 4 Conductivity S/m 2.83329 3.47423 5 Conductance:Specific S/m 4.36284 4.92169 6 Salinity PSS-78 27.1 31.33 7 Speed:Sound m/s 1469.75 1486.87 8 Density kg/m^3 1021.131 1024.16 $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 : 32 LATITUDE : 48 59.55390 N ! (deg min) LONGITUDE : 125 20.45440 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_211928 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 92 92 MERGEHDR 1.3 2026/01/16 10:35:38 92 92 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 92 92 CALIB 12.1 2026/01/16 10:37:10 92 92 CLEAN 5.3 2026/01/16 10:37:46 92 92 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 7.174 2.83329 4.40301 27.32 1469.75 1021.352 0.45 0.45 7.604 2.84495 4.36284 27.10 1471.17 1021.131 0.75 0.75 7.953 2.93501 4.45333 27.77 1473.36 1021.612 1.05 1.05 8.007 2.97083 4.50033 28.10 1473.98 1021.865 1.35 1.35 8.169 2.98958 4.50657 28.17 1474.69 1021.896 1.65 1.65 8.387 3.03089 4.53899 28.42 1475.84 1022.065 1.95 1.95 8.653 3.08172 4.57871 28.73 1477.23 1022.272 2.25 2.24 8.918 3.11972 4.59889 28.90 1478.45 1022.371 2.55 2.54 9.178 3.15921 4.62168 29.09 1479.66 1022.484 2.85 2.84 9.341 3.18655 4.63957 29.24 1480.45 1022.574 3.15 3.14 9.475 3.21301 4.65991 29.40 1481.15 1022.679 3.45 3.44 9.645 3.23747 4.67231 29.51 1481.91 1022.737 3.75 3.74 9.836 3.27273 4.69740 29.70 1482.85 1022.864 4.05 4.04 9.949 3.28711 4.70275 29.76 1483.33 1022.887 4.35 4.34 9.985 3.29439 4.70824 29.80 1483.52 1022.916 4.65 4.64 10.027 3.30492 4.71767 29.87 1483.77 1022.966 4.95 4.94 10.075 3.31741 4.72904 29.95 1484.05 1023.026 5.25 5.23 10.106 3.32541 4.73620 30.01 1484.23 1023.064 5.55 5.53 10.135 3.32939 4.73799 30.02 1484.36 1023.073 5.85 5.83 10.175 3.33621 4.74230 30.06 1484.56 1023.095 6.15 6.13 10.194 3.34048 4.74582 30.09 1484.66 1023.115 6.45 6.43 10.201 3.34415 4.75006 30.12 1484.73 1023.138 6.75 6.73 10.210 3.34930 4.75620 30.16 1484.82 1023.173 7.05 7.03 10.225 3.35233 4.75850 30.18 1484.90 1023.186 7.35 7.33 10.230 3.35315 4.75896 30.18 1484.93 1023.189 7.65 7.63 10.231 3.35682 4.76405 30.22 1484.98 1023.218 7.95 7.92 10.228 3.36065 4.76990 30.26 1485.02 1023.252 8.25 8.22 10.224 3.36314 4.77400 30.29 1485.05 1023.276 8.55 8.52 10.230 3.36766 4.77956 30.33 1485.12 1023.307 8.85 8.82 10.234 3.37397 4.78799 30.39 1485.21 1023.354 9.15 9.12 10.235 3.37806 4.79363 30.43 1485.27 1023.386 9.45 9.42 10.237 3.38141 4.79814 30.46 1485.32 1023.412 9.75 9.72 10.242 3.38480 4.80227 30.49 1485.38 1023.436 10.05 10.02 10.245 3.38847 4.80700 30.52 1485.44 1023.463 10.35 10.32 10.251 3.39039 4.80898 30.53 1485.48 1023.474 10.65 10.61 10.255 3.39370 4.81309 30.56 1485.54 1023.498 10.95 10.91 10.258 3.39596 4.81583 30.58 1485.58 1023.514 11.25 11.21 10.262 3.39826 4.81854 30.60 1485.62 1023.530 11.55 11.51 10.264 3.40010 4.82086 30.62 1485.65 1023.544 11.85 11.81 10.266 3.40379 4.82582 30.65 1485.71 1023.572 12.15 12.11 10.270 3.40871 4.83225 30.70 1485.78 1023.608 12.45 12.41 10.272 3.41158 4.83617 30.73 1485.82 1023.631 12.75 12.71 10.272 3.41495 4.84093 30.76 1485.87 1023.658 13.05 13.00 10.274 3.41625 4.84245 30.77 1485.90 1023.668 13.35 13.30 10.275 3.41762 4.84432 30.79 1485.92 1023.679 13.65 13.60 10.275 3.42011 4.84774 30.81 1485.96 1023.699 13.95 13.90 10.277 3.42191 4.85003 30.83 1485.99 1023.713 14.25 14.20 10.278 3.42404 4.85301 30.85 1486.02 1023.730 14.55 14.50 10.279 3.42480 4.85381 30.85 1486.04 1023.736 14.85 14.80 10.281 3.42585 4.85512 30.86 1486.06 1023.744 15.15 15.10 10.281 3.42749 4.85737 30.88 1486.08 1023.758 15.45 15.39 10.282 3.42914 4.85959 30.89 1486.11 1023.771 15.75 15.69 10.284 3.43264 4.86435 30.93 1486.16 1023.799 16.05 15.99 10.286 3.43425 4.86627 30.94 1486.19 1023.810 16.35 16.29 10.287 3.43552 4.86800 30.95 1486.21 1023.821 16.65 16.59 10.288 3.43795 4.87125 30.98 1486.25 1023.840 16.95 16.89 10.288 3.43850 4.87205 30.98 1486.26 1023.846 17.25 17.19 10.287 3.44136 4.87628 31.01 1486.30 1023.870 17.55 17.49 10.288 3.44248 4.87770 31.02 1486.32 1023.879 17.85 17.78 10.291 3.44408 4.87959 31.03 1486.35 1023.891 18.15 18.08 10.294 3.44582 4.88163 31.05 1486.39 1023.903 18.45 18.38 10.294 3.44654 4.88263 31.06 1486.40 1023.910 18.75 18.68 10.293 3.44759 4.88430 31.07 1486.41 1023.920 19.05 18.98 10.293 3.44853 4.88551 31.08 1486.43 1023.928 19.35 19.28 10.295 3.44956 4.88679 31.08 1486.45 1023.936 19.65 19.58 10.294 3.45085 4.88870 31.10 1486.47 1023.948 19.95 19.87 10.293 3.45167 4.88997 31.11 1486.48 1023.957 20.25 20.17 10.293 3.45341 4.89242 31.12 1486.51 1023.971 20.55 20.47 10.292 3.45359 4.89287 31.13 1486.51 1023.975 20.85 20.77 10.294 3.45413 4.89342 31.13 1486.53 1023.979 21.15 21.07 10.294 3.45557 4.89540 31.14 1486.55 1023.991 21.45 21.37 10.295 3.45690 4.89720 31.16 1486.58 1024.002 21.75 21.67 10.294 3.45965 4.90122 31.19 1486.61 1024.026 22.05 21.97 10.296 3.46157 4.90357 31.20 1486.65 1024.040 22.35 22.26 10.299 3.46286 4.90503 31.21 1486.67 1024.049 22.65 22.56 10.300 3.46395 4.90642 31.22 1486.69 1024.058 22.95 22.86 10.300 3.46398 4.90650 31.22 1486.70 1024.060 23.25 23.16 10.299 3.46499 4.90808 31.23 1486.71 1024.070 23.55 23.46 10.296 3.46564 4.90937 31.24 1486.72 1024.078 23.85 23.76 10.296 3.46618 4.91016 31.25 1486.73 1024.084 24.15 24.06 10.296 3.46677 4.91101 31.25 1486.74 1024.090 24.45 24.35 10.290 3.46700 4.91220 31.26 1486.73 1024.098 24.75 24.65 10.285 3.46706 4.91295 31.27 1486.73 1024.104 25.05 24.95 10.282 3.46770 4.91431 31.28 1486.73 1024.113 25.35 25.25 10.280 3.46787 4.91473 31.28 1486.73 1024.116 25.65 25.55 10.279 3.46900 4.91652 31.29 1486.75 1024.128 25.95 25.85 10.285 3.46949 4.91632 31.29 1486.78 1024.127 26.25 26.15 10.293 3.47037 4.91655 31.29 1486.81 1024.129 26.55 26.44 10.295 3.47320 4.92029 31.32 1486.85 1024.151 26.85 26.74 10.295 3.47423 4.92169 31.33 1486.87 1024.160 27.15 27.04 10.274 3.46964 4.91810 31.30 1486.77 1024.143 27.36 27.25 10.293 3.45410 4.89342 31.13 1486.63 1024.007