*2026/01/16 10:37:49.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 20:56:36.000 END TIME : UTC 2025/03/11 20:56:52.800 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 25.46 2 Depth metres 0.15 25.43 3 Temperature 'deg C (ITS90)' 8.218 8.44 4 Conductivity S/m 2.63448 2.92835 5 Conductance:Specific S/m 3.96358 4.37961 6 Salinity PSS-78 24.46 27.32 7 Speed:Sound m/s 1470.31 1475.04 8 Density kg/m^3 1018.981 1021.306 $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 : 80 LATITUDE : 49 15.90550 N ! (deg min) LONGITUDE : 125 51.86560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_205636 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 85 85 MERGEHDR 1.3 2026/01/16 10:35:41 85 85 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 85 85 CALIB 12.1 2026/01/16 10:37:13 85 85 CLEAN 5.3 2026/01/16 10:37:49 85 85 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 8.218 2.63448 3.96543 24.47 1470.31 1018.991 0.45 0.45 8.274 2.63766 3.96358 24.46 1470.52 1018.981 0.75 0.75 8.323 2.68626 4.03068 24.93 1471.28 1019.336 1.05 1.05 8.362 2.69905 4.04513 25.03 1471.56 1019.413 1.35 1.35 8.411 2.71610 4.06468 25.17 1471.93 1019.516 1.65 1.65 8.436 2.74946 4.11150 25.49 1472.42 1019.766 1.95 1.95 8.439 2.76038 4.12746 25.60 1472.57 1019.853 2.25 2.25 8.417 2.76358 4.13495 25.65 1472.55 1019.895 2.55 2.55 8.393 2.76448 4.13931 25.67 1472.50 1019.920 2.85 2.85 8.378 2.76525 4.14233 25.69 1472.47 1019.938 3.15 3.15 8.367 2.76543 4.14390 25.70 1472.44 1019.948 3.45 3.45 8.361 2.76659 4.14642 25.72 1472.45 1019.963 3.75 3.75 8.357 2.76858 4.14993 25.74 1472.46 1019.984 4.05 4.05 8.354 2.77531 4.16034 25.81 1472.54 1020.041 4.35 4.35 8.353 2.77599 4.16147 25.82 1472.56 1020.048 4.65 4.65 8.355 2.78112 4.16897 25.87 1472.63 1020.089 4.95 4.95 8.356 2.78387 4.17291 25.90 1472.67 1020.112 5.25 5.25 8.357 2.78798 4.17902 25.94 1472.73 1020.146 5.55 5.55 8.360 2.79435 4.18816 26.00 1472.83 1020.196 5.85 5.85 8.367 2.80388 4.20162 26.09 1472.97 1020.269 6.15 6.15 8.376 2.82261 4.22849 26.28 1473.24 1020.413 6.45 6.45 8.382 2.82967 4.23832 26.35 1473.35 1020.467 6.75 6.75 8.390 2.84492 4.26014 26.50 1473.57 1020.585 7.05 7.05 8.392 2.86262 4.28642 26.68 1473.80 1020.727 7.35 7.35 8.398 2.87700 4.30719 26.82 1474.01 1020.840 7.65 7.65 8.403 2.87863 4.30898 26.83 1474.05 1020.850 7.95 7.94 8.407 2.88244 4.31413 26.87 1474.11 1020.879 8.25 8.24 8.413 2.88397 4.31561 26.88 1474.15 1020.888 8.55 8.54 8.417 2.88522 4.31703 26.89 1474.18 1020.897 8.85 8.84 8.420 2.88712 4.31945 26.91 1474.22 1020.911 9.15 9.14 8.420 2.88987 4.32351 26.93 1474.26 1020.934 9.45 9.44 8.419 2.89179 4.32660 26.96 1474.29 1020.952 9.75 9.74 8.416 2.89413 4.33044 26.98 1474.31 1020.974 10.05 10.04 8.415 2.89481 4.33165 26.99 1474.32 1020.982 10.35 10.34 8.413 2.89533 4.33259 27.00 1474.33 1020.988 10.65 10.64 8.414 2.89597 4.33347 27.00 1474.35 1020.994 10.95 10.94 8.410 2.89689 4.33538 27.01 1474.35 1021.006 11.25 11.24 8.413 2.89714 4.33537 27.01 1474.37 1021.007 11.55 11.54 8.415 2.89756 4.33573 27.02 1474.38 1021.010 11.85 11.84 8.413 2.89830 4.33704 27.03 1474.39 1021.019 12.15 12.14 8.414 2.89862 4.33738 27.03 1474.40 1021.022 12.45 12.44 8.413 2.89937 4.33863 27.04 1474.42 1021.030 12.75 12.74 8.413 2.90148 4.34182 27.06 1474.45 1021.048 13.05 13.04 8.416 2.90093 4.34070 27.05 1474.45 1021.044 13.35 13.34 8.412 2.90146 4.34188 27.06 1474.45 1021.051 13.65 13.64 8.412 2.90159 4.34211 27.06 1474.46 1021.054 13.95 13.94 8.411 2.90200 4.34289 27.07 1474.46 1021.059 14.25 14.23 8.411 2.90247 4.34359 27.07 1474.48 1021.064 14.55 14.53 8.415 2.90443 4.34597 27.09 1474.52 1021.078 14.85 14.83 8.416 2.90739 4.35030 27.12 1474.56 1021.103 15.15 15.13 8.416 2.90954 4.35347 27.14 1474.59 1021.121 15.45 15.43 8.417 2.91141 4.35625 27.16 1474.62 1021.138 15.75 15.73 8.418 2.91434 4.36038 27.19 1474.67 1021.161 16.05 16.03 8.421 2.91506 4.36114 27.19 1474.69 1021.166 16.35 16.33 8.422 2.91676 4.36352 27.21 1474.72 1021.180 16.65 16.63 8.426 2.91755 4.36421 27.21 1474.75 1021.185 16.95 16.93 8.427 2.91938 4.36678 27.23 1474.78 1021.200 17.25 17.23 8.427 2.92066 4.36872 27.24 1474.80 1021.212 17.55 17.53 8.427 2.92266 4.37170 27.26 1474.83 1021.229 17.85 17.83 8.428 2.92370 4.37315 27.27 1474.85 1021.238 18.15 18.13 8.425 2.92439 4.37451 27.28 1474.86 1021.247 18.45 18.43 8.427 2.92486 4.37501 27.29 1474.87 1021.251 18.75 18.73 8.429 2.92498 4.37495 27.29 1474.88 1021.252 19.05 19.03 8.428 2.92559 4.37593 27.29 1474.89 1021.258 19.35 19.33 8.430 2.92593 4.37618 27.29 1474.91 1021.261 19.65 19.63 8.429 2.92609 4.37660 27.30 1474.91 1021.265 19.95 19.92 8.429 2.92672 4.37748 27.30 1474.93 1021.271 20.25 20.22 8.432 2.92677 4.37726 27.30 1474.94 1021.271 20.55 20.52 8.428 2.92641 4.37720 27.30 1474.93 1021.272 20.85 20.82 8.428 2.92651 4.37733 27.30 1474.93 1021.274 21.15 21.12 8.428 2.92656 4.37745 27.30 1474.94 1021.276 21.45 21.42 8.428 2.92696 4.37804 27.31 1474.95 1021.280 21.75 21.72 8.427 2.92659 4.37760 27.30 1474.95 1021.279 22.05 22.02 8.429 2.92650 4.37718 27.30 1474.96 1021.278 22.35 22.32 8.433 2.92716 4.37771 27.30 1474.98 1021.282 22.65 22.62 8.435 2.92664 4.37658 27.30 1474.98 1021.277 22.95 22.92 8.435 2.92729 4.37764 27.30 1475.00 1021.284 23.25 23.22 8.430 2.92723 4.37813 27.31 1474.99 1021.288 23.55 23.52 8.429 2.92748 4.37871 27.31 1474.99 1021.293 23.85 23.82 8.438 2.92820 4.37862 27.31 1475.03 1021.293 24.15 24.12 8.440 2.92822 4.37834 27.31 1475.04 1021.293 24.45 24.42 8.438 2.92752 4.37754 27.30 1475.03 1021.290 24.75 24.72 8.435 2.92743 4.37783 27.30 1475.03 1021.293 25.05 25.02 8.431 2.92828 4.37958 27.32 1475.03 1021.304 25.46 25.43 8.432 2.92835 4.37961 27.32 1475.04 1021.306