*2026/01/16 10:37:47.47 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/18 23:43:38.000 END TIME : UTC 2025/02/18 23:44:05.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 137 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.98 2 Depth metres 0.15 40.79 3 Temperature 'deg C (ITS90)' 8.171 9.387 4 Conductivity S/m 3.17391 3.34823 5 Conductance:Specific S/m 4.65241 4.90871 6 Salinity PSS-78 29.3 30.95 7 Speed:Sound m/s 1478.57 1482.58 8 Density kg/m^3 1022.644 1024.246 $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 : 47 LATITUDE : 49 53.29630 N ! (deg min) LONGITUDE : 126 47.83000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250218_234338 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 137 137 MERGEHDR 1.3 2026/01/16 10:35:39 137 137 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 137 137 CALIB 12.1 2026/01/16 10:37:11 137 137 CLEAN 5.3 2026/01/16 10:37:47 137 137 $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 9.110 3.17391 4.65241 29.30 1479.62 1022.644 0.45 0.45 9.148 3.19154 4.67307 29.45 1479.95 1022.756 0.75 0.75 9.158 3.20595 4.69277 29.59 1480.16 1022.864 1.05 1.05 9.185 3.22593 4.71831 29.77 1480.49 1023.003 1.35 1.35 9.229 3.25536 4.75530 30.03 1480.98 1023.204 1.65 1.64 9.267 3.29268 4.80443 30.38 1481.55 1023.472 1.95 1.94 9.288 3.32674 4.85118 30.71 1482.04 1023.729 2.25 2.24 9.289 3.33614 4.86481 30.81 1482.16 1023.805 2.55 2.54 9.347 3.34392 4.86783 30.84 1482.42 1023.820 2.85 2.84 9.387 3.34823 4.86839 30.85 1482.58 1023.822 3.15 3.14 9.337 3.34078 4.86475 30.81 1482.36 1023.806 3.45 3.44 9.178 3.32298 4.86126 30.77 1481.72 1023.796 3.75 3.73 9.026 3.31232 4.86728 30.79 1481.19 1023.837 4.05 4.03 8.927 3.30646 4.87296 30.82 1480.86 1023.874 4.35 4.33 8.867 3.30421 4.87828 30.84 1480.67 1023.906 4.65 4.63 8.812 3.30277 4.88397 30.88 1480.51 1023.941 4.95 4.93 8.772 3.30183 4.88842 30.90 1480.40 1023.968 5.25 5.23 8.759 3.30153 4.88989 30.91 1480.36 1023.978 5.55 5.53 8.757 3.30105 4.88942 30.91 1480.36 1023.977 5.85 5.83 8.756 3.30155 4.89032 30.91 1480.37 1023.983 6.15 6.12 8.756 3.30181 4.89076 30.92 1480.37 1023.987 6.45 6.42 8.753 3.30160 4.89076 30.92 1480.37 1023.988 6.75 6.72 8.749 3.30159 4.89145 30.92 1480.36 1023.993 7.05 7.02 8.748 3.30175 4.89181 30.92 1480.37 1023.997 7.35 7.32 8.747 3.30068 4.89031 30.91 1480.36 1023.990 7.65 7.62 8.746 3.30088 4.89075 30.91 1480.36 1023.994 7.95 7.92 8.745 3.30090 4.89101 30.92 1480.36 1023.996 8.25 8.21 8.742 3.30054 4.89090 30.91 1480.35 1023.997 8.55 8.51 8.737 3.30065 4.89176 30.92 1480.35 1024.003 8.85 8.81 8.731 3.30005 4.89167 30.92 1480.33 1024.004 9.15 9.11 8.717 3.29873 4.89181 30.92 1480.28 1024.007 9.45 9.41 8.712 3.29802 4.89143 30.91 1480.26 1024.006 9.75 9.71 8.707 3.29849 4.89295 30.92 1480.26 1024.016 10.05 10.01 8.696 3.29604 4.89085 30.91 1480.20 1024.006 10.35 10.30 8.682 3.29529 4.89177 30.91 1480.16 1024.013 10.65 10.60 8.665 3.29393 4.89222 30.91 1480.10 1024.017 10.95 10.90 8.646 3.29217 4.89240 30.91 1480.03 1024.020 11.25 11.20 8.629 3.29205 4.89468 30.92 1479.99 1024.035 11.55 11.50 8.618 3.29077 4.89433 30.92 1479.95 1024.034 11.85 11.80 8.600 3.28758 4.89226 30.90 1479.87 1024.025 12.15 12.10 8.558 3.28354 4.89230 30.90 1479.71 1024.028 12.45 12.40 8.529 3.28217 4.89454 30.91 1479.61 1024.042 12.75 12.69 8.534 3.28337 4.89555 30.91 1479.65 1024.049 13.05 12.99 8.537 3.27922 4.88895 30.87 1479.61 1024.014 13.35 13.29 8.508 3.27780 4.89112 30.88 1479.52 1024.028 13.65 13.59 8.484 3.27569 4.89136 30.88 1479.43 1024.031 13.95 13.89 8.470 3.27567 4.89340 30.89 1479.40 1024.044 14.25 14.19 8.462 3.27520 4.89385 30.89 1479.37 1024.048 14.55 14.49 8.460 3.27453 4.89318 30.89 1479.36 1024.046 14.85 14.78 8.459 3.27457 4.89342 30.89 1479.37 1024.049 15.15 15.08 8.456 3.27408 4.89315 30.89 1479.36 1024.048 15.45 15.38 8.453 3.27485 4.89467 30.90 1479.36 1024.058 15.75 15.68 8.451 3.27506 4.89529 30.90 1479.37 1024.063 16.05 15.98 8.450 3.27243 4.89148 30.87 1479.33 1024.043 16.35 16.28 8.431 3.27055 4.89145 30.87 1479.26 1024.045 16.65 16.58 8.415 3.27002 4.89304 30.88 1479.22 1024.055 16.95 16.87 8.401 3.26994 4.89496 30.89 1479.18 1024.068 17.25 17.17 8.392 3.26826 4.89381 30.88 1479.14 1024.063 17.55 17.47 8.380 3.26780 4.89488 30.88 1479.11 1024.070 17.85 17.77 8.371 3.26754 4.89571 30.89 1479.09 1024.076 18.15 18.07 8.367 3.26675 4.89519 30.88 1479.07 1024.075 18.45 18.37 8.386 3.26716 4.89303 30.87 1479.13 1024.064 18.75 18.67 8.396 3.26979 4.89551 30.89 1479.20 1024.078 19.05 18.96 8.398 3.27026 4.89587 30.89 1479.21 1024.082 19.35 19.26 8.400 3.27046 4.89582 30.89 1479.23 1024.083 19.65 19.56 8.398 3.27023 4.89582 30.89 1479.22 1024.084 19.95 19.86 8.393 3.27061 4.89713 30.90 1479.22 1024.093 20.25 20.16 8.386 3.27050 4.89807 30.91 1479.20 1024.099 20.55 20.46 8.385 3.26859 4.89534 30.89 1479.18 1024.085 20.85 20.76 8.382 3.26910 4.89647 30.90 1479.18 1024.093 21.15 21.05 8.381 3.26863 4.89596 30.89 1479.18 1024.092 21.45 21.35 8.379 3.26866 4.89625 30.89 1479.18 1024.094 21.75 21.65 8.375 3.26787 4.89565 30.89 1479.16 1024.093 22.05 21.95 8.372 3.26775 4.89591 30.89 1479.16 1024.095 22.35 22.25 8.368 3.26765 4.89636 30.89 1479.15 1024.099 22.65 22.55 8.366 3.26720 4.89604 30.89 1479.14 1024.099 22.95 22.85 8.360 3.26768 4.89760 30.90 1479.14 1024.109 23.25 23.15 8.347 3.26729 4.89885 30.91 1479.11 1024.117 23.55 23.44 8.329 3.26538 4.89878 30.90 1479.03 1024.119 23.85 23.74 8.317 3.26337 4.89748 30.89 1478.98 1024.113 24.15 24.04 8.311 3.26268 4.89725 30.89 1478.96 1024.113 24.45 24.34 8.305 3.25995 4.89404 30.87 1478.92 1024.097 24.75 24.64 8.292 3.25907 4.89474 30.87 1478.87 1024.103 25.05 24.94 8.271 3.25933 4.89811 30.89 1478.82 1024.123 25.35 25.24 8.260 3.25802 4.89786 30.88 1478.78 1024.123 25.65 25.53 8.254 3.25773 4.89821 30.89 1478.77 1024.126 25.95 25.83 8.251 3.25775 4.89875 30.89 1478.76 1024.131 26.25 26.13 8.250 3.25801 4.89928 30.89 1478.77 1024.135 26.55 26.43 8.252 3.25874 4.90002 30.90 1478.79 1024.140 26.85 26.73 8.255 3.25930 4.90053 30.90 1478.81 1024.144 27.15 27.03 8.257 3.25920 4.90005 30.90 1478.82 1024.143 27.45 27.33 8.258 3.25961 4.90047 30.90 1478.83 1024.146 27.75 27.62 8.260 3.25947 4.90004 30.90 1478.84 1024.145 28.05 27.92 8.257 3.25921 4.90007 30.90 1478.83 1024.147 28.35 28.22 8.254 3.25956 4.90099 30.90 1478.83 1024.153 28.65 28.52 8.249 3.25887 4.90072 30.90 1478.81 1024.153 28.95 28.82 8.245 3.25815 4.90026 30.90 1478.80 1024.152 29.25 29.12 8.247 3.25812 4.89987 30.89 1478.81 1024.151 29.55 29.42 8.241 3.25772 4.90016 30.90 1478.79 1024.154 29.85 29.71 8.235 3.25773 4.90108 30.90 1478.78 1024.161 30.15 30.01 8.230 3.25752 4.90141 30.90 1478.77 1024.164 30.45 30.31 8.229 3.25685 4.90068 30.90 1478.76 1024.161 30.75 30.61 8.224 3.25719 4.90193 30.91 1478.76 1024.169 31.05 30.91 8.219 3.25676 4.90202 30.90 1478.74 1024.171 31.35 31.21 8.213 3.25588 4.90150 30.90 1478.72 1024.170 31.65 31.51 8.208 3.25439 4.90004 30.89 1478.69 1024.163 31.95 31.80 8.203 3.25343 4.89923 30.88 1478.67 1024.160 32.25 32.10 8.188 3.25268 4.90035 30.89 1478.63 1024.168 32.55 32.40 8.183 3.25213 4.90033 30.89 1478.61 1024.169 32.85 32.70 8.174 3.25156 4.90077 30.89 1478.58 1024.173 33.15 33.00 8.171 3.25082 4.90006 30.88 1478.57 1024.171 33.45 33.30 8.171 3.25180 4.90151 30.89 1478.59 1024.180 33.75 33.60 8.172 3.25189 4.90153 30.89 1478.60 1024.181 34.05 33.89 8.173 3.25183 4.90129 30.89 1478.60 1024.181 34.35 34.19 8.175 3.25302 4.90287 30.90 1478.63 1024.191 34.65 34.49 8.175 3.25264 4.90231 30.90 1478.63 1024.189 34.95 34.79 8.175 3.25323 4.90309 30.90 1478.64 1024.195 35.25 35.09 8.177 3.25361 4.90335 30.91 1478.66 1024.197 35.55 35.39 8.180 3.25383 4.90324 30.91 1478.67 1024.198 35.85 35.69 8.180 3.25422 4.90382 30.91 1478.68 1024.202 36.15 35.98 8.181 3.25491 4.90473 30.92 1478.70 1024.209 36.45 36.28 8.183 3.25502 4.90462 30.92 1478.71 1024.209 36.75 36.58 8.186 3.25512 4.90434 30.91 1478.72 1024.209 37.05 36.88 8.185 3.25477 4.90398 30.91 1478.72 1024.208 37.35 37.18 8.185 3.25574 4.90549 30.92 1478.74 1024.218 37.65 37.48 8.188 3.25506 4.90393 30.91 1478.74 1024.210 37.95 37.78 8.189 3.25561 4.90460 30.92 1478.76 1024.215 38.25 38.07 8.191 3.25568 4.90444 30.91 1478.77 1024.216 38.55 38.37 8.192 3.25619 4.90502 30.92 1478.78 1024.220 38.85 38.67 8.196 3.25669 4.90528 30.92 1478.80 1024.223 39.15 38.97 8.202 3.25700 4.90490 30.92 1478.83 1024.222 39.45 39.27 8.205 3.25735 4.90494 30.92 1478.85 1024.223 39.75 39.57 8.210 3.26036 4.90871 30.95 1478.90 1024.245 40.05 39.87 8.223 3.26102 4.90781 30.94 1478.95 1024.241 40.35 40.16 8.231 3.26142 4.90722 30.94 1478.98 1024.239 40.65 40.46 8.232 3.26188 4.90782 30.94 1479.00 1024.243 40.98 40.79 8.233 3.26217 4.90809 30.95 1479.01 1024.246