*2026/01/16 09:57:53.85 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 15:11:34.000 END TIME : UTC 2024/08/15 15:11:49.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 76 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.54 2 Depth metres 0.15 22.43 3 Temperature 'deg C (ITS90)' 10.193 15.744 4 Conductivity S/m 3.53397 3.95392 5 Conductance:Specific S/m 4.84325 5.02547 6 Salinity PSS-78 31.19 32.05 7 Speed:Sound m/s 1487.28 1504.78 8 Density kg/m^3 1022.99 1024.721 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 212 LATITUDE : 48 52.63880 N ! (deg min) LONGITUDE : 125 17.57350 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_151134 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 76 76 MERGEHDR 1.3 2026/01/16 09:54:01 76 76 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:20 76 76 CALIB 12.1 2026/01/16 09:56:54 76 76 CLEAN 5.3 2026/01/16 09:57:53 76 76 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 09:57:46 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 15.740 3.95337 4.85200 31.34 1504.76 1022.992 0.45 0.45 15.739 3.95288 4.85147 31.33 1504.75 1022.990 0.75 0.75 15.744 3.95347 4.85159 31.34 1504.78 1022.991 1.05 1.05 15.740 3.95333 4.85188 31.34 1504.77 1022.995 1.35 1.35 15.734 3.95392 4.85337 31.35 1504.77 1023.005 1.65 1.64 15.723 3.95377 4.85449 31.35 1504.75 1023.015 1.95 1.94 15.698 3.95220 4.85558 31.36 1504.68 1023.026 2.25 2.24 15.655 3.94951 4.85738 31.37 1504.56 1023.045 2.55 2.54 15.613 3.94324 4.85462 31.35 1504.41 1023.038 2.85 2.84 15.566 3.94153 4.85817 31.37 1504.29 1023.067 3.15 3.14 15.480 3.94073 4.86745 31.43 1504.10 1023.133 3.45 3.44 15.137 3.91400 4.87574 31.47 1503.06 1023.237 3.75 3.74 14.943 3.87109 4.84573 31.24 1502.18 1023.103 4.05 4.04 14.543 3.83031 4.84325 31.19 1500.84 1023.153 4.35 4.33 14.340 3.81197 4.84490 31.19 1500.18 1023.193 4.65 4.63 13.999 3.79429 4.86461 31.30 1499.21 1023.353 4.95 4.93 13.685 3.78658 4.89408 31.49 1498.40 1023.560 5.25 5.23 13.322 3.75574 4.90028 31.50 1497.21 1023.644 5.55 5.53 13.101 3.71613 4.87663 31.31 1496.26 1023.543 5.85 5.83 12.842 3.69987 4.88864 31.37 1495.46 1023.643 6.15 6.13 12.544 3.68762 4.91111 31.51 1494.61 1023.804 6.45 6.43 12.411 3.67483 4.91144 31.50 1494.15 1023.822 6.75 6.72 12.249 3.66593 4.92088 31.55 1493.67 1023.893 7.05 7.02 12.136 3.66128 4.92959 31.60 1493.34 1023.955 7.35 7.32 12.004 3.65000 4.93184 31.60 1492.90 1023.983 7.65 7.62 11.890 3.64546 4.94101 31.65 1492.57 1024.047 7.95 7.92 11.789 3.64295 4.95108 31.71 1492.30 1024.114 8.25 8.22 11.730 3.63822 4.95260 31.72 1492.11 1024.129 8.55 8.52 11.698 3.63518 4.95281 31.72 1492.00 1024.135 8.85 8.82 11.664 3.63154 4.95240 31.71 1491.88 1024.137 9.15 9.11 11.597 3.62687 4.95513 31.72 1491.67 1024.160 9.45 9.41 11.565 3.62321 4.95444 31.71 1491.55 1024.161 9.75 9.71 11.529 3.62104 4.95633 31.72 1491.44 1024.176 10.05 10.01 11.487 3.61742 4.95711 31.72 1491.30 1024.185 10.35 10.31 11.448 3.61549 4.95973 31.74 1491.19 1024.205 10.65 10.61 11.405 3.61500 4.96496 31.77 1491.08 1024.239 10.95 10.91 11.376 3.61236 4.96525 31.77 1490.98 1024.245 11.25 11.20 11.342 3.60971 4.96625 31.77 1490.87 1024.255 11.55 11.50 11.318 3.60837 4.96777 31.78 1490.80 1024.266 11.85 11.80 11.299 3.60789 4.96973 31.79 1490.75 1024.280 12.15 12.10 11.266 3.60586 4.97146 31.80 1490.65 1024.294 12.45 12.40 11.219 3.60190 4.97234 31.80 1490.49 1024.304 12.75 12.70 11.192 3.60058 4.97431 31.81 1490.42 1024.319 13.05 13.00 11.182 3.59986 4.97464 31.81 1490.39 1024.323 13.35 13.29 11.169 3.59890 4.97513 31.82 1490.35 1024.328 13.65 13.59 11.157 3.59866 4.97648 31.82 1490.32 1024.338 13.95 13.89 11.147 3.59751 4.97616 31.82 1490.29 1024.338 14.25 14.19 11.136 3.59711 4.97720 31.83 1490.26 1024.346 14.55 14.49 11.108 3.59545 4.97878 31.83 1490.18 1024.359 14.85 14.79 11.079 3.59268 4.97887 31.83 1490.08 1024.363 15.15 15.09 11.051 3.58855 4.97700 31.81 1489.96 1024.356 15.45 15.38 11.006 3.58386 4.97679 31.81 1489.80 1024.360 15.75 15.68 10.962 3.58217 4.98052 31.83 1489.67 1024.386 16.05 15.98 10.930 3.58160 4.98420 31.85 1489.59 1024.410 16.35 16.28 10.900 3.58000 4.98600 31.86 1489.51 1024.424 16.65 16.58 10.873 3.57839 4.98760 31.87 1489.42 1024.436 16.95 16.88 10.847 3.57587 4.98773 31.87 1489.33 1024.440 17.25 17.17 10.801 3.57388 4.99136 31.89 1489.20 1024.465 17.55 17.47 10.763 3.57202 4.99399 31.90 1489.09 1024.484 17.85 17.77 10.731 3.56848 4.99357 31.89 1488.97 1024.486 18.15 18.07 10.707 3.56622 4.99377 31.89 1488.88 1024.490 18.45 18.37 10.678 3.56527 4.99650 31.91 1488.81 1024.509 18.75 18.67 10.647 3.56401 4.99908 31.92 1488.72 1024.526 19.05 18.97 10.619 3.56258 5.00096 31.93 1488.64 1024.540 19.35 19.26 10.570 3.55905 5.00286 31.94 1488.48 1024.556 19.65 19.56 10.503 3.55265 5.00328 31.93 1488.23 1024.564 19.95 19.86 10.428 3.54332 5.00079 31.91 1487.94 1024.557 20.25 20.16 10.370 3.54006 5.00435 31.93 1487.76 1024.583 20.55 20.46 10.345 3.54033 5.00820 31.95 1487.70 1024.607 20.85 20.76 10.317 3.53993 5.01170 31.97 1487.63 1024.629 21.15 21.06 10.288 3.53865 5.01389 31.98 1487.55 1024.645 21.45 21.35 10.266 3.53692 5.01463 31.98 1487.47 1024.652 21.75 21.65 10.243 3.53561 5.01599 31.99 1487.41 1024.662 22.05 21.95 10.229 3.53482 5.01698 32.00 1487.36 1024.670 22.35 22.25 10.198 3.53397 5.02020 32.01 1487.28 1024.691 22.54 22.43 10.193 3.53719 5.02547 32.05 1487.31 1024.721