*2026/01/16 10:37:43.66 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 21:24:39.000 END TIME : UTC 2025/01/21 21:24:55.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 85 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.33 2 Depth metres 0.15 25.31 3 Temperature 'deg C (ITS90)' 8.509 9.329 4 Conductivity S/m 2.62036 2.91068 5 Conductance:Specific S/m 3.90997 4.25481 6 Salinity PSS-78 24.13 26.55 7 Speed:Sound m/s 1471.01 1477.03 8 Density kg/m^3 1018.685 1020.598 $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 : 8 LATITUDE : 49 13.97490 N ! (deg min) LONGITUDE : 125 46.49260 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_212439 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 85 85 MERGEHDR 1.3 2026/01/16 10:35:37 85 85 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 85 85 CALIB 12.1 2026/01/16 10:37:09 85 85 CLEAN 5.3 2026/01/16 10:37:43 85 85 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 8.509 2.62036 3.90997 24.13 1471.01 1018.685 0.45 0.45 8.531 2.62264 3.91080 24.13 1471.10 1018.690 0.75 0.75 8.567 2.63446 3.92417 24.23 1471.37 1018.760 1.05 1.05 8.585 2.65245 3.94886 24.40 1471.65 1018.892 1.35 1.35 8.607 2.65627 3.95197 24.42 1471.76 1018.909 1.65 1.65 8.625 2.66359 3.96073 24.48 1471.91 1018.956 1.95 1.95 8.645 2.67885 3.98106 24.62 1472.17 1019.064 2.25 2.25 8.650 2.69024 3.99738 24.73 1472.33 1019.152 2.55 2.55 8.688 2.69100 3.99399 24.72 1472.45 1019.133 2.85 2.85 8.736 2.69451 3.99350 24.72 1472.65 1019.129 3.15 3.15 8.762 2.70063 3.99957 24.76 1472.80 1019.162 3.45 3.45 8.778 2.70584 4.00536 24.80 1472.92 1019.193 3.75 3.75 8.787 2.70645 4.00512 24.80 1472.96 1019.193 4.05 4.05 8.802 2.71131 4.01060 24.84 1473.07 1019.222 4.35 4.35 8.842 2.72168 4.02113 24.92 1473.32 1019.278 4.65 4.65 8.907 2.73853 4.03828 25.04 1473.72 1019.367 4.95 4.95 8.948 2.75369 4.05580 25.16 1474.03 1019.459 5.25 5.25 8.971 2.75817 4.05964 25.19 1474.16 1019.480 5.55 5.55 9.003 2.76285 4.06269 25.22 1474.32 1019.496 5.85 5.85 9.047 2.76771 4.06456 25.24 1474.51 1019.505 6.15 6.15 9.070 2.77208 4.06824 25.26 1474.63 1019.524 6.45 6.45 9.092 2.77903 4.07581 25.32 1474.79 1019.565 6.75 6.75 9.124 2.78737 4.08413 25.38 1474.99 1019.609 7.05 7.05 9.161 2.79172 4.08613 25.39 1475.15 1019.619 7.35 7.35 9.189 2.79850 4.09273 25.44 1475.32 1019.654 7.65 7.65 9.212 2.80387 4.09778 25.48 1475.46 1019.680 7.95 7.95 9.227 2.81033 4.10541 25.53 1475.59 1019.722 8.25 8.25 9.249 2.81210 4.10536 25.54 1475.68 1019.721 8.55 8.55 9.268 2.81880 4.11290 25.59 1475.82 1019.762 8.85 8.85 9.276 2.82342 4.11860 25.63 1475.90 1019.793 9.15 9.15 9.285 2.82615 4.12162 25.65 1475.96 1019.810 9.45 9.45 9.292 2.83166 4.12869 25.70 1476.06 1019.849 9.75 9.75 9.301 2.84146 4.14196 25.79 1476.21 1019.921 10.05 10.05 9.312 2.84476 4.14540 25.82 1476.29 1019.940 10.35 10.35 9.318 2.84739 4.14855 25.84 1476.34 1019.957 10.65 10.65 9.320 2.85318 4.15668 25.89 1476.42 1020.002 10.95 10.95 9.323 2.85629 4.16086 25.92 1476.47 1020.026 11.25 11.25 9.326 2.85701 4.16161 25.93 1476.49 1020.031 11.55 11.55 9.328 2.85774 4.16241 25.93 1476.51 1020.036 11.85 11.85 9.329 2.85841 4.16329 25.94 1476.53 1020.042 12.15 12.15 9.328 2.85835 4.16333 25.94 1476.53 1020.044 12.45 12.45 9.328 2.85922 4.16457 25.95 1476.55 1020.052 12.75 12.75 9.328 2.86105 4.16719 25.97 1476.57 1020.067 13.05 13.05 9.326 2.86167 4.16840 25.97 1476.58 1020.075 13.35 13.35 9.322 2.86703 4.17666 26.03 1476.64 1020.121 13.65 13.65 9.318 2.87265 4.18535 26.09 1476.70 1020.169 13.95 13.95 9.313 2.87518 4.18967 26.12 1476.72 1020.193 14.25 14.25 9.309 2.87718 4.19308 26.14 1476.74 1020.213 14.55 14.55 9.305 2.87899 4.19619 26.16 1476.75 1020.231 14.85 14.85 9.300 2.88030 4.19872 26.18 1476.76 1020.247 15.15 15.15 9.291 2.88235 4.20274 26.21 1476.77 1020.270 15.45 15.45 9.278 2.88394 4.20671 26.23 1476.75 1020.293 15.75 15.75 9.267 2.88601 4.21103 26.26 1476.75 1020.318 16.05 16.05 9.264 2.88764 4.21387 26.28 1476.77 1020.335 16.35 16.35 9.258 2.88797 4.21497 26.29 1476.76 1020.342 16.65 16.65 9.253 2.88820 4.21595 26.29 1476.75 1020.349 16.95 16.94 9.249 2.88878 4.21738 26.30 1476.75 1020.359 17.25 17.24 9.244 2.88997 4.21966 26.32 1476.76 1020.372 17.55 17.54 9.237 2.89050 4.22135 26.33 1476.75 1020.383 17.85 17.84 9.224 2.89070 4.22317 26.34 1476.72 1020.395 18.15 18.14 9.221 2.89135 4.22450 26.35 1476.72 1020.404 18.45 18.44 9.219 2.89169 4.22529 26.35 1476.72 1020.409 18.75 18.74 9.215 2.89310 4.22783 26.37 1476.74 1020.424 19.05 19.04 9.206 2.89385 4.23007 26.38 1476.72 1020.438 19.35 19.34 9.199 2.89597 4.23398 26.41 1476.74 1020.461 19.65 19.64 9.196 2.89700 4.23584 26.42 1476.74 1020.472 19.95 19.94 9.193 2.89864 4.23868 26.44 1476.76 1020.489 20.25 20.24 9.193 2.89930 4.23959 26.45 1476.77 1020.495 20.55 20.54 9.193 2.89986 4.24038 26.45 1476.79 1020.501 20.85 20.84 9.194 2.90068 4.24152 26.46 1476.80 1020.508 21.15 21.14 9.194 2.90138 4.24249 26.47 1476.82 1020.514 21.45 21.44 9.194 2.90106 4.24202 26.46 1476.82 1020.513 21.75 21.74 9.195 2.90173 4.24285 26.47 1476.83 1020.519 22.05 22.04 9.197 2.90147 4.24235 26.46 1476.84 1020.517 22.35 22.34 9.198 2.90231 4.24339 26.47 1476.86 1020.524 22.65 22.64 9.199 2.90306 4.24431 26.48 1476.88 1020.530 22.95 22.94 9.200 2.90369 4.24510 26.48 1476.89 1020.536 23.25 23.24 9.200 2.90396 4.24559 26.49 1476.90 1020.540 23.55 23.54 9.202 2.90668 4.24934 26.51 1476.94 1020.561 23.85 23.84 9.204 2.90610 4.24815 26.50 1476.95 1020.556 24.15 24.14 9.205 2.90652 4.24873 26.51 1476.96 1020.560 24.45 24.44 9.206 2.90658 4.24866 26.51 1476.97 1020.561 24.75 24.74 9.206 2.90733 4.24978 26.52 1476.98 1020.568 25.05 25.04 9.205 2.90899 4.25226 26.53 1477.00 1020.583 25.33 25.31 9.205 2.91068 4.25481 26.55 1477.03 1020.598