*2026/01/16 10:37:58.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 22:43:53.000 END TIME : UTC 2025/07/22 22:44:23.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 151 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 45.05 2 Depth metres 0.15 44.82 3 Temperature 'deg C (ITS90)' 9.234 14.5 4 Conductivity S/m 3.4711 3.80332 5 Conductance:Specific S/m 4.77485 5.07178 6 Salinity PSS-78 30.6 32.24 7 Speed:Sound m/s 1484.24 1500.39 8 Density kg/m^3 1022.887 1025.12 $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 : 232 LATITUDE : 49 51.76740 N ! (deg min) LONGITUDE : 126 42.51770 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_224353 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 151 151 MERGEHDR 1.3 2026/01/16 10:35:48 151 151 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:52 151 151 CALIB 12.1 2026/01/16 10:37:22 151 151 CLEAN 5.3 2026/01/16 10:37:58 151 151 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 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 10:37:22 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 14.500 3.80332 4.81427 30.98 1500.39 1022.983 0.45 0.45 14.220 3.75661 4.78915 30.78 1499.25 1022.887 0.75 0.75 13.964 3.74674 4.80790 30.90 1498.55 1023.028 1.05 1.05 13.788 3.70808 4.77990 30.68 1497.73 1022.900 1.35 1.35 13.616 3.69733 4.78730 30.72 1497.21 1022.966 1.65 1.64 13.254 3.65311 4.77485 30.60 1495.86 1022.946 1.95 1.94 12.810 3.64507 4.82023 30.88 1494.71 1023.253 2.25 2.24 12.516 3.65276 4.86828 31.20 1494.09 1023.554 2.55 2.54 12.439 3.64869 4.87284 31.22 1493.86 1023.589 2.85 2.84 12.360 3.64473 4.87786 31.25 1493.63 1023.627 3.15 3.14 12.255 3.63847 4.88326 31.28 1493.31 1023.670 3.45 3.44 12.144 3.63202 4.88917 31.31 1492.97 1023.716 3.75 3.74 12.022 3.62471 4.89537 31.34 1492.60 1023.764 4.05 4.03 11.892 3.61296 4.89670 31.34 1492.15 1023.787 4.35 4.33 11.748 3.60582 4.90616 31.39 1491.72 1023.855 4.65 4.63 11.588 3.59835 4.91744 31.46 1491.24 1023.934 4.95 4.93 11.414 3.59248 4.93288 31.55 1490.74 1024.037 5.25 5.23 11.267 3.58356 4.94053 31.58 1490.28 1024.094 5.55 5.53 11.183 3.58273 4.95078 31.65 1490.07 1024.160 5.85 5.83 11.108 3.58141 4.95936 31.70 1489.87 1024.215 6.15 6.12 11.049 3.57997 4.96536 31.74 1489.71 1024.254 6.45 6.42 11.024 3.57426 4.96101 31.70 1489.59 1024.234 6.75 6.72 11.006 3.56827 4.95506 31.66 1489.48 1024.204 7.05 7.02 10.998 3.56656 4.95389 31.65 1489.44 1024.199 7.35 7.32 10.997 3.57018 4.95900 31.68 1489.49 1024.229 7.65 7.62 10.997 3.56911 4.95748 31.67 1489.48 1024.222 7.95 7.92 10.985 3.57167 4.96270 31.71 1489.48 1024.253 8.25 8.21 10.965 3.57187 4.96577 31.73 1489.44 1024.273 8.55 8.51 10.946 3.57005 4.96581 31.73 1489.38 1024.276 8.85 8.81 10.937 3.57228 4.97017 31.76 1489.39 1024.302 9.15 9.11 10.956 3.57350 4.96928 31.75 1489.45 1024.297 9.45 9.41 10.977 3.57685 4.97100 31.77 1489.55 1024.305 9.75 9.71 10.993 3.57693 4.96898 31.75 1489.59 1024.294 10.05 10.01 11.012 3.57660 4.96586 31.73 1489.64 1024.277 10.35 10.30 11.031 3.57865 4.96611 31.74 1489.72 1024.278 10.65 10.60 11.054 3.57804 4.96209 31.71 1489.77 1024.255 10.95 10.90 11.077 3.57588 4.95586 31.67 1489.81 1024.220 11.25 11.20 11.079 3.57932 4.96042 31.70 1489.86 1024.246 11.55 11.50 11.071 3.57962 4.96188 31.71 1489.85 1024.256 11.85 11.80 11.041 3.57652 4.96177 31.71 1489.74 1024.259 12.15 12.10 11.006 3.57190 4.96012 31.69 1489.61 1024.254 12.45 12.39 10.970 3.56698 4.95820 31.67 1489.46 1024.248 12.75 12.69 10.926 3.56784 4.96549 31.72 1489.37 1024.293 13.05 12.99 10.892 3.56653 4.96838 31.74 1489.27 1024.313 13.35 13.29 10.870 3.56501 4.96940 31.74 1489.20 1024.322 13.65 13.59 10.837 3.56509 4.97409 31.77 1489.12 1024.352 13.95 13.89 10.828 3.56214 4.97123 31.75 1489.07 1024.338 14.25 14.19 10.803 3.56081 4.97283 31.76 1489.00 1024.350 14.55 14.48 10.768 3.55557 4.97028 31.73 1488.85 1024.340 14.85 14.78 10.716 3.55398 4.97537 31.76 1488.71 1024.374 15.15 15.08 10.634 3.55424 4.98713 31.84 1488.51 1024.446 15.45 15.38 10.618 3.55406 4.98915 31.85 1488.47 1024.460 15.75 15.68 10.577 3.54935 4.98824 31.84 1488.32 1024.459 16.05 15.98 10.522 3.54854 4.99479 31.88 1488.18 1024.501 16.35 16.27 10.466 3.54588 4.99904 31.90 1488.01 1024.530 16.65 16.57 10.423 3.54224 4.99993 31.90 1487.86 1024.539 16.95 16.87 10.391 3.53850 4.99911 31.89 1487.74 1024.538 17.25 17.17 10.324 3.53516 5.00391 31.92 1487.53 1024.571 17.55 17.47 10.228 3.53128 5.01202 31.96 1487.25 1024.624 17.85 17.77 10.179 3.52481 5.00978 31.94 1487.05 1024.616 18.15 18.07 10.172 3.52529 5.01145 31.95 1487.04 1024.627 18.45 18.36 10.161 3.52391 5.01114 31.95 1487.00 1024.627 18.75 18.66 10.144 3.52229 5.01126 31.95 1486.94 1024.630 19.05 18.96 10.113 3.52019 5.01262 31.95 1486.84 1024.641 19.35 19.26 10.085 3.51868 5.01453 31.96 1486.76 1024.655 19.65 19.56 10.066 3.51977 5.01871 31.99 1486.73 1024.680 19.95 19.86 10.055 3.51957 5.02000 32.00 1486.70 1024.689 20.25 20.15 10.044 3.51953 5.02152 32.01 1486.68 1024.700 20.55 20.45 10.030 3.51800 5.02137 32.00 1486.63 1024.701 20.85 20.75 10.002 3.51627 5.02293 32.01 1486.54 1024.713 21.15 21.05 9.975 3.51489 5.02484 32.02 1486.46 1024.726 21.45 21.35 9.956 3.51319 5.02520 32.02 1486.40 1024.731 21.75 21.65 9.927 3.51091 5.02604 32.02 1486.30 1024.738 22.05 21.95 9.897 3.50756 5.02558 32.01 1486.19 1024.739 22.35 22.24 9.862 3.50663 5.02934 32.04 1486.09 1024.763 22.65 22.54 9.838 3.50577 5.03157 32.05 1486.02 1024.778 22.95 22.84 9.816 3.50462 5.03306 32.06 1485.96 1024.789 23.25 23.14 9.796 3.50308 5.03375 32.06 1485.89 1024.795 23.55 23.44 9.783 3.50180 5.03374 32.06 1485.85 1024.797 23.85 23.74 9.760 3.50054 5.03526 32.06 1485.78 1024.808 24.15 24.03 9.739 3.50041 5.03818 32.08 1485.73 1024.827 24.45 24.33 9.725 3.49955 5.03889 32.08 1485.69 1024.833 24.75 24.63 9.714 3.49869 5.03928 32.09 1485.65 1024.837 25.05 24.93 9.706 3.49774 5.03902 32.08 1485.63 1024.837 25.35 25.23 9.686 3.49629 5.03990 32.09 1485.56 1024.844 25.65 25.53 9.657 3.49543 5.04295 32.10 1485.48 1024.864 25.95 25.82 9.621 3.49390 5.04590 32.12 1485.37 1024.884 26.25 26.12 9.586 3.49113 5.04705 32.12 1485.25 1024.893 26.55 26.42 9.565 3.49084 5.04972 32.14 1485.20 1024.910 26.85 26.72 9.517 3.48884 5.05377 32.16 1485.06 1024.936 27.15 27.02 9.452 3.48339 5.05540 32.16 1484.83 1024.950 27.45 27.32 9.435 3.48185 5.05568 32.16 1484.77 1024.954 27.75 27.61 9.428 3.48199 5.05686 32.17 1484.76 1024.962 28.05 27.91 9.413 3.48033 5.05668 32.17 1484.70 1024.963 28.35 28.21 9.394 3.48009 5.05917 32.18 1484.66 1024.979 28.65 28.51 9.389 3.47998 5.05979 32.18 1484.65 1024.984 28.95 28.81 9.383 3.47968 5.06016 32.19 1484.63 1024.987 29.25 29.11 9.372 3.47916 5.06107 32.19 1484.60 1024.994 29.55 29.40 9.364 3.47658 5.05852 32.17 1484.55 1024.982 29.85 29.70 9.337 3.47471 5.05976 32.18 1484.47 1024.991 30.15 30.00 9.308 3.47484 5.06417 32.20 1484.40 1025.018 30.45 30.30 9.292 3.47409 5.06550 32.21 1484.35 1025.028 30.75 30.60 9.284 3.47331 5.06555 32.21 1484.33 1025.030 31.05 30.90 9.278 3.47399 5.06738 32.22 1484.32 1025.041 31.35 31.19 9.274 3.47342 5.06719 32.22 1484.31 1025.042 31.65 31.49 9.268 3.47372 5.06841 32.23 1484.31 1025.050 31.95 31.79 9.256 3.47302 5.06920 32.23 1484.27 1025.056 32.25 32.09 9.251 3.47301 5.06998 32.24 1484.26 1025.062 32.55 32.39 9.251 3.47274 5.06952 32.23 1484.26 1025.061 32.85 32.69 9.250 3.47294 5.06994 32.23 1484.27 1025.064 33.15 32.98 9.249 3.47321 5.07048 32.24 1484.27 1025.068 33.45 33.28 9.246 3.47238 5.06974 32.23 1484.26 1025.066 33.75 33.58 9.244 3.47232 5.07001 32.23 1484.26 1025.069 34.05 33.88 9.241 3.47250 5.07074 32.24 1484.26 1025.074 34.35 34.18 9.240 3.47110 5.06876 32.22 1484.24 1025.064 34.65 34.48 9.242 3.47154 5.06907 32.23 1484.26 1025.067 34.95 34.77 9.235 3.47154 5.07011 32.23 1484.24 1025.075 35.25 35.07 9.237 3.47245 5.07117 32.24 1484.27 1025.082 35.55 35.37 9.243 3.47227 5.07001 32.23 1484.28 1025.076 35.85 35.67 9.245 3.47271 5.07032 32.24 1484.30 1025.079 36.15 35.97 9.246 3.47338 5.07117 32.24 1484.32 1025.085 36.45 36.27 9.244 3.47295 5.07087 32.24 1484.31 1025.085 36.75 36.56 9.246 3.47270 5.07028 32.23 1484.31 1025.083 37.05 36.86 9.242 3.47258 5.07062 32.24 1484.31 1025.086 37.35 37.16 9.242 3.47264 5.07070 32.24 1484.31 1025.088 37.65 37.46 9.240 3.47244 5.07078 32.24 1484.31 1025.089 37.95 37.76 9.244 3.47283 5.07071 32.24 1484.33 1025.090 38.25 38.06 9.244 3.47312 5.07120 32.24 1484.34 1025.094 38.55 38.35 9.242 3.47255 5.07063 32.24 1484.33 1025.092 38.85 38.65 9.242 3.47242 5.07048 32.23 1484.33 1025.093 39.15 38.95 9.237 3.47270 5.07154 32.24 1484.33 1025.100 39.45 39.25 9.236 3.47236 5.07128 32.24 1484.33 1025.100 39.75 39.55 9.239 3.47269 5.07130 32.24 1484.34 1025.101 40.05 39.85 9.237 3.47254 5.07136 32.24 1484.34 1025.103 40.35 40.14 9.238 3.47223 5.07072 32.23 1484.35 1025.101 40.65 40.44 9.240 3.47192 5.07004 32.23 1484.35 1025.098 40.95 40.74 9.239 3.47260 5.07117 32.24 1484.36 1025.106 41.25 41.04 9.238 3.47294 5.07178 32.24 1484.37 1025.110 41.55 41.34 9.239 3.47224 5.07062 32.23 1484.37 1025.105 41.85 41.64 9.240 3.47195 5.07003 32.23 1484.37 1025.103 42.15 41.93 9.240 3.47287 5.07136 32.24 1484.39 1025.112 42.45 42.23 9.241 3.47219 5.07022 32.23 1484.39 1025.107 42.75 42.53 9.247 3.47297 5.07048 32.23 1484.42 1025.109 43.05 42.83 9.251 3.47248 5.06924 32.23 1484.42 1025.103 43.35 43.13 9.244 3.47231 5.07000 32.23 1484.41 1025.109 43.65 43.43 9.239 3.47166 5.06972 32.23 1484.39 1025.109 43.95 43.72 9.237 3.47208 5.07065 32.23 1484.40 1025.115 44.25 44.02 9.235 3.47191 5.07075 32.23 1484.40 1025.117 44.55 44.32 9.234 3.47202 5.07100 32.23 1484.40 1025.120 44.85 44.62 9.234 3.47188 5.07073 32.23 1484.40 1025.120 45.05 44.82 9.240 3.47227 5.07046 32.23 1484.43 1025.119