*2026/01/16 10:37:47.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/18 22:56:42.000 END TIME : UTC 2025/02/18 22:57:03.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 108 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.38 2 Depth metres 0.15 32.23 3 Temperature 'deg C (ITS90)' 8.15 8.826 4 Conductivity S/m 3.23404 3.2778 5 Conductance:Specific S/m 4.78037 4.90255 6 Salinity PSS-78 30.16 30.9 7 Speed:Sound m/s 1478.4 1479.76 8 Density kg/m^3 1023.355 1024.18 $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 : 46 LATITUDE : 49 52.05040 N ! (deg min) LONGITUDE : 126 49.50180 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250218_225642 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 108 108 MERGEHDR 1.3 2026/01/16 10:35:39 108 108 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 108 108 CALIB 12.1 2026/01/16 10:37:11 108 108 CLEAN 5.3 2026/01/16 10:37:47 108 108 $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 10:37:11 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 8.826 3.23404 4.78037 30.16 1479.61 1023.355 0.45 0.45 8.785 3.23843 4.79276 30.24 1479.56 1023.425 0.75 0.75 8.693 3.25994 4.83778 30.54 1479.59 1023.676 1.05 1.05 8.663 3.26616 4.85131 30.63 1479.59 1023.753 1.35 1.34 8.643 3.27355 4.86513 30.72 1479.64 1023.830 1.65 1.64 8.658 3.27508 4.86517 30.72 1479.70 1023.831 1.95 1.94 8.665 3.27780 4.86823 30.75 1479.76 1023.849 2.25 2.24 8.642 3.27671 4.86997 30.76 1479.69 1023.861 2.55 2.54 8.621 3.27631 4.87236 30.77 1479.63 1023.876 2.85 2.84 8.607 3.27684 4.87518 30.79 1479.61 1023.893 3.15 3.14 8.595 3.27694 4.87707 30.80 1479.58 1023.905 3.45 3.43 8.584 3.27685 4.87856 30.81 1479.55 1023.915 3.75 3.73 8.578 3.27706 4.87977 30.81 1479.54 1023.923 4.05 4.03 8.573 3.27716 4.88058 30.82 1479.54 1023.929 4.35 4.33 8.567 3.27700 4.88121 30.82 1479.52 1023.934 4.65 4.63 8.558 3.27619 4.88139 30.82 1479.49 1023.936 4.95 4.93 8.549 3.27582 4.88207 30.83 1479.47 1023.942 5.25 5.23 8.543 3.27541 4.88246 30.83 1479.45 1023.945 5.55 5.53 8.536 3.27577 4.88393 30.84 1479.44 1023.955 5.85 5.82 8.524 3.27411 4.88325 30.83 1479.39 1023.953 6.15 6.12 8.507 3.27227 4.88301 30.83 1479.33 1023.953 6.45 6.42 8.481 3.27134 4.88536 30.84 1479.25 1023.968 6.75 6.72 8.449 3.27000 4.88800 30.85 1479.15 1023.985 7.05 7.02 8.435 3.26703 4.88562 30.83 1479.08 1023.973 7.35 7.32 8.436 3.26643 4.88463 30.83 1479.08 1023.969 7.65 7.62 8.420 3.26590 4.88619 30.83 1479.04 1023.980 7.95 7.91 8.409 3.26530 4.88681 30.84 1479.00 1023.985 8.25 8.21 8.401 3.26507 4.88771 30.84 1478.98 1023.991 8.55 8.51 8.388 3.26491 4.88934 30.85 1478.95 1024.002 8.85 8.81 8.373 3.26395 4.89004 30.85 1478.90 1024.007 9.15 9.11 8.366 3.26184 4.88794 30.84 1478.86 1023.997 9.45 9.41 8.361 3.26184 4.88865 30.84 1478.85 1024.002 9.75 9.71 8.354 3.26187 4.88976 30.85 1478.84 1024.010 10.05 10.00 8.347 3.26115 4.88967 30.85 1478.82 1024.011 10.35 10.30 8.341 3.26041 4.88953 30.84 1478.79 1024.012 10.65 10.60 8.327 3.25934 4.88997 30.85 1478.75 1024.016 10.95 10.90 8.316 3.25785 4.88938 30.84 1478.70 1024.014 11.25 11.20 8.310 3.25825 4.89080 30.85 1478.70 1024.023 11.55 11.50 8.308 3.25835 4.89127 30.85 1478.70 1024.027 11.85 11.80 8.306 3.25709 4.88964 30.84 1478.68 1024.020 12.15 12.10 8.305 3.25738 4.89019 30.84 1478.69 1024.024 12.45 12.39 8.304 3.25772 4.89092 30.85 1478.69 1024.029 12.75 12.69 8.303 3.25763 4.89089 30.85 1478.69 1024.030 13.05 12.99 8.303 3.25781 4.89115 30.85 1478.70 1024.033 13.35 13.29 8.300 3.25716 4.89056 30.84 1478.69 1024.031 13.65 13.59 8.295 3.25717 4.89134 30.85 1478.68 1024.037 13.95 13.89 8.288 3.25675 4.89183 30.85 1478.66 1024.041 14.25 14.19 8.280 3.25601 4.89178 30.85 1478.64 1024.042 14.55 14.48 8.275 3.25505 4.89110 30.84 1478.61 1024.040 14.85 14.78 8.271 3.25409 4.89023 30.84 1478.59 1024.036 15.15 15.08 8.262 3.25332 4.89043 30.84 1478.56 1024.039 15.45 15.38 8.256 3.25363 4.89174 30.85 1478.56 1024.048 15.75 15.68 8.251 3.25362 4.89246 30.85 1478.55 1024.053 16.05 15.98 8.247 3.25349 4.89295 30.85 1478.54 1024.057 16.35 16.28 8.246 3.25323 4.89269 30.85 1478.54 1024.057 16.65 16.57 8.245 3.25334 4.89301 30.85 1478.54 1024.060 16.95 16.87 8.243 3.25399 4.89425 30.86 1478.55 1024.068 17.25 17.17 8.240 3.25416 4.89495 30.86 1478.55 1024.073 17.55 17.47 8.238 3.25383 4.89469 30.86 1478.55 1024.073 17.85 17.77 8.237 3.25353 4.89444 30.86 1478.54 1024.073 18.15 18.07 8.235 3.25367 4.89501 30.86 1478.54 1024.078 18.45 18.37 8.230 3.25322 4.89495 30.86 1478.53 1024.079 18.75 18.66 8.226 3.25367 4.89621 30.87 1478.53 1024.087 19.05 18.96 8.222 3.25251 4.89512 30.86 1478.51 1024.082 19.35 19.26 8.218 3.25253 4.89578 30.87 1478.50 1024.087 19.65 19.56 8.214 3.25233 4.89598 30.87 1478.49 1024.090 19.95 19.86 8.211 3.25134 4.89502 30.86 1478.48 1024.086 20.25 20.16 8.205 3.25166 4.89627 30.87 1478.47 1024.094 20.55 20.46 8.201 3.25118 4.89625 30.87 1478.46 1024.095 20.85 20.75 8.194 3.25029 4.89585 30.86 1478.43 1024.095 21.15 21.05 8.193 3.25053 4.89647 30.87 1478.44 1024.099 21.45 21.35 8.192 3.24997 4.89569 30.86 1478.43 1024.096 21.75 21.65 8.188 3.24974 4.89594 30.86 1478.42 1024.099 22.05 21.95 8.183 3.24963 4.89649 30.86 1478.41 1024.104 22.35 22.25 8.179 3.24914 4.89633 30.86 1478.40 1024.104 22.65 22.55 8.175 3.24952 4.89748 30.87 1478.40 1024.112 22.95 22.85 8.175 3.24953 4.89757 30.87 1478.40 1024.114 23.25 23.14 8.174 3.24942 4.89761 30.87 1478.40 1024.115 23.55 23.44 8.171 3.24937 4.89785 30.87 1478.40 1024.118 23.85 23.74 8.171 3.24916 4.89765 30.87 1478.40 1024.118 24.15 24.04 8.170 3.24908 4.89760 30.87 1478.40 1024.119 24.45 24.34 8.170 3.24938 4.89803 30.87 1478.41 1024.123 24.75 24.64 8.171 3.24982 4.89858 30.88 1478.42 1024.127 25.05 24.94 8.170 3.24969 4.89847 30.88 1478.43 1024.127 25.35 25.23 8.171 3.24984 4.89861 30.88 1478.43 1024.130 25.65 25.53 8.171 3.24979 4.89860 30.88 1478.44 1024.131 25.95 25.83 8.169 3.24998 4.89910 30.88 1478.44 1024.135 26.25 26.13 8.165 3.25014 4.89989 30.88 1478.44 1024.141 26.55 26.43 8.164 3.24979 4.89963 30.88 1478.43 1024.140 26.85 26.73 8.162 3.24960 4.89951 30.88 1478.43 1024.141 27.15 27.03 8.160 3.24957 4.89978 30.88 1478.43 1024.144 27.45 27.32 8.159 3.24964 4.90015 30.88 1478.43 1024.147 27.75 27.62 8.158 3.25012 4.90097 30.89 1478.44 1024.153 28.05 27.92 8.158 3.24952 4.90012 30.88 1478.44 1024.150 28.35 28.22 8.155 3.24907 4.89979 30.88 1478.43 1024.149 28.65 28.52 8.153 3.24914 4.90023 30.88 1478.43 1024.153 28.95 28.82 8.152 3.24907 4.90021 30.88 1478.43 1024.154 29.25 29.12 8.152 3.24866 4.89969 30.88 1478.43 1024.152 29.55 29.41 8.151 3.24922 4.90065 30.89 1478.44 1024.159 29.85 29.71 8.150 3.24981 4.90170 30.89 1478.45 1024.166 30.15 30.01 8.151 3.25018 4.90215 30.90 1478.46 1024.170 30.45 30.31 8.151 3.24937 4.90088 30.89 1478.45 1024.164 30.75 30.61 8.153 3.24968 4.90098 30.89 1478.47 1024.166 31.05 30.91 8.157 3.25024 4.90124 30.89 1478.49 1024.168 31.35 31.21 8.157 3.25056 4.90180 30.89 1478.50 1024.173 31.65 31.50 8.157 3.25110 4.90255 30.90 1478.51 1024.178 31.95 31.80 8.158 3.25092 4.90218 30.90 1478.52 1024.177 32.38 32.23 8.160 3.25121 4.90231 30.90 1478.53 1024.180