*2026/01/16 10:37:46.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/24 01:07:55.000 END TIME : UTC 2025/01/24 01:08:20.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 129 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.56 2 Depth metres 0.15 38.39 3 Temperature 'deg C (ITS90)' 9.231 10.334 4 Conductivity S/m 3.25394 3.4994 5 Conductance:Specific S/m 4.72691 4.96328 6 Salinity PSS-78 29.86 31.61 7 Speed:Sound m/s 1481.12 1487.27 8 Density kg/m^3 1023.034 1024.44 $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 : 38 LATITUDE : 48 53.02290 N ! (deg min) LONGITUDE : 125 4.78020 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250124_010755 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 129 129 MERGEHDR 1.3 2026/01/16 10:35:38 129 129 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 129 129 CALIB 12.1 2026/01/16 10:37:10 129 129 CLEAN 5.3 2026/01/16 10:37:46 129 129 $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 10:37:10 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 9.419 3.25394 4.72691 29.86 1481.45 1023.034 0.45 0.45 9.275 3.25796 4.75265 30.02 1481.12 1023.184 0.75 0.75 9.231 3.28330 4.79582 30.32 1481.33 1023.423 1.05 1.05 9.395 3.29855 4.79512 30.33 1481.96 1023.412 1.35 1.34 9.584 3.34118 4.83051 30.61 1482.99 1023.597 1.65 1.64 9.612 3.36137 4.85579 30.79 1483.32 1023.735 1.95 1.94 9.568 3.37427 4.88062 30.96 1483.37 1023.875 2.25 2.24 9.576 3.38311 4.89231 31.04 1483.50 1023.940 2.55 2.54 9.611 3.38157 4.88511 30.99 1483.58 1023.900 2.85 2.84 9.643 3.38329 4.88301 30.98 1483.69 1023.888 3.15 3.14 9.655 3.38292 4.88092 30.97 1483.72 1023.877 3.45 3.44 9.654 3.38208 4.87985 30.96 1483.71 1023.873 3.75 3.73 9.646 3.38199 4.88072 30.97 1483.70 1023.879 4.05 4.03 9.635 3.38051 4.88013 30.96 1483.66 1023.878 4.35 4.33 9.629 3.37915 4.87912 30.95 1483.63 1023.874 4.65 4.63 9.627 3.37769 4.87725 30.94 1483.61 1023.865 4.95 4.93 9.632 3.37817 4.87725 30.94 1483.63 1023.866 5.25 5.23 9.647 3.38082 4.87893 30.95 1483.71 1023.876 5.55 5.53 9.667 3.38427 4.88104 30.97 1483.81 1023.887 5.85 5.83 9.692 3.38636 4.88067 30.97 1483.90 1023.885 6.15 6.12 9.718 3.39302 4.88648 31.02 1484.06 1023.917 6.45 6.42 9.738 3.39384 4.88484 31.01 1484.13 1023.908 6.75 6.72 9.766 3.39581 4.88381 31.00 1484.23 1023.902 7.05 7.02 9.786 3.39799 4.88411 31.01 1484.31 1023.903 7.35 7.32 9.805 3.40086 4.88555 31.02 1484.40 1023.911 7.65 7.62 9.826 3.40154 4.88360 31.01 1484.47 1023.901 7.95 7.92 9.848 3.40298 4.88253 31.00 1484.55 1023.895 8.25 8.21 9.870 3.40623 4.88413 31.02 1484.65 1023.903 8.55 8.51 9.877 3.40634 4.88334 31.01 1484.68 1023.900 8.85 8.81 9.887 3.40610 4.88168 31.00 1484.70 1023.891 9.15 9.11 9.903 3.40787 4.88189 31.01 1484.77 1023.893 9.45 9.41 9.930 3.41154 4.88334 31.02 1484.89 1023.900 9.75 9.71 9.967 3.41612 4.88471 31.03 1485.05 1023.907 10.05 10.01 9.996 3.41979 4.88594 31.05 1485.17 1023.913 10.35 10.31 10.023 3.42443 4.88877 31.07 1485.30 1023.928 10.65 10.60 10.047 3.43259 4.89710 31.13 1485.47 1023.973 10.95 10.90 10.070 3.43423 4.89624 31.13 1485.55 1023.968 11.25 11.20 10.100 3.43599 4.89463 31.12 1485.66 1023.959 11.55 11.50 10.121 3.43666 4.89259 31.11 1485.73 1023.947 11.85 11.80 10.148 3.43714 4.88956 31.09 1485.80 1023.930 12.15 12.10 10.187 3.44124 4.88992 31.10 1485.96 1023.931 12.45 12.40 10.216 3.44736 4.89460 31.13 1486.11 1023.956 12.75 12.69 10.232 3.45629 4.90500 31.21 1486.27 1024.013 13.05 12.99 10.263 3.46375 4.91125 31.26 1486.44 1024.047 13.35 13.29 10.297 3.47088 4.91669 31.30 1486.62 1024.075 13.65 13.59 10.314 3.47247 4.91652 31.30 1486.69 1024.075 13.95 13.89 10.328 3.47270 4.91488 31.29 1486.73 1024.066 14.25 14.19 10.334 3.47312 4.91476 31.29 1486.76 1024.066 14.55 14.49 10.332 3.47363 4.91572 31.30 1486.76 1024.073 14.85 14.79 10.328 3.47290 4.91529 31.29 1486.75 1024.072 15.15 15.08 10.321 3.47238 4.91546 31.29 1486.73 1024.074 15.45 15.38 10.317 3.47394 4.91826 31.31 1486.74 1024.092 15.75 15.68 10.314 3.47538 4.92068 31.33 1486.76 1024.106 16.05 15.98 10.312 3.47634 4.92227 31.34 1486.77 1024.116 16.35 16.28 10.312 3.47680 4.92294 31.34 1486.78 1024.121 16.65 16.58 10.312 3.47722 4.92362 31.35 1486.79 1024.126 16.95 16.88 10.311 3.47757 4.92419 31.35 1486.80 1024.131 17.25 17.17 10.310 3.47760 4.92434 31.35 1486.80 1024.133 17.55 17.47 10.310 3.47960 4.92719 31.37 1486.83 1024.150 17.85 17.77 10.309 3.47989 4.92770 31.38 1486.83 1024.154 18.15 18.07 10.308 3.48058 4.92886 31.38 1486.84 1024.162 18.45 18.37 10.309 3.48104 4.92942 31.39 1486.86 1024.166 18.75 18.67 10.307 3.48150 4.93031 31.39 1486.86 1024.172 19.05 18.97 10.307 3.48162 4.93042 31.39 1486.87 1024.174 19.35 19.26 10.307 3.48198 4.93095 31.40 1486.88 1024.178 19.65 19.56 10.307 3.48162 4.93048 31.39 1486.88 1024.177 19.95 19.86 10.306 3.48203 4.93124 31.40 1486.88 1024.183 20.25 20.16 10.305 3.48247 4.93204 31.41 1486.89 1024.188 20.55 20.46 10.303 3.48228 4.93197 31.40 1486.89 1024.189 20.85 20.76 10.294 3.48179 4.93249 31.41 1486.87 1024.194 21.15 21.06 10.290 3.48223 4.93377 31.42 1486.86 1024.203 21.45 21.35 10.295 3.48225 4.93312 31.41 1486.88 1024.200 21.75 21.65 10.289 3.48341 4.93556 31.43 1486.89 1024.215 22.05 21.95 10.290 3.48400 4.93618 31.43 1486.90 1024.220 22.35 22.25 10.292 3.48492 4.93730 31.44 1486.92 1024.227 22.65 22.55 10.290 3.48558 4.93852 31.45 1486.93 1024.235 22.95 22.85 10.284 3.48590 4.93978 31.46 1486.92 1024.244 23.25 23.15 10.289 3.48607 4.93931 31.45 1486.94 1024.242 23.55 23.44 10.294 3.48654 4.93932 31.45 1486.97 1024.243 23.85 23.74 10.295 3.48620 4.93864 31.45 1486.97 1024.241 24.15 24.04 10.293 3.48682 4.93981 31.46 1486.98 1024.249 24.45 24.34 10.290 3.48662 4.93989 31.46 1486.97 1024.250 24.75 24.64 10.287 3.48728 4.94136 31.47 1486.98 1024.260 25.05 24.94 10.287 3.48786 4.94214 31.47 1486.99 1024.266 25.35 25.24 10.286 3.48780 4.94213 31.47 1486.99 1024.267 25.65 25.53 10.286 3.48898 4.94381 31.48 1487.01 1024.277 25.95 25.83 10.287 3.48903 4.94378 31.48 1487.02 1024.278 26.25 26.13 10.285 3.48939 4.94460 31.49 1487.02 1024.284 26.55 26.43 10.284 3.48940 4.94479 31.49 1487.02 1024.287 26.85 26.73 10.283 3.49038 4.94633 31.50 1487.04 1024.297 27.15 27.03 10.282 3.48973 4.94548 31.49 1487.03 1024.293 27.45 27.33 10.278 3.49004 4.94644 31.50 1487.03 1024.300 27.75 27.62 10.273 3.49071 4.94818 31.51 1487.03 1024.311 28.05 27.92 10.272 3.49173 4.94973 31.52 1487.04 1024.321 28.35 28.22 10.273 3.49220 4.95031 31.53 1487.06 1024.326 28.65 28.52 10.271 3.49362 4.95248 31.54 1487.08 1024.339 28.95 28.82 10.268 3.49369 4.95303 31.55 1487.07 1024.343 29.25 29.12 10.261 3.49345 4.95364 31.55 1487.06 1024.349 29.55 29.42 10.266 3.49463 4.95471 31.56 1487.09 1024.355 29.85 29.71 10.269 3.49435 4.95382 31.55 1487.10 1024.351 30.15 30.01 10.268 3.49491 4.95481 31.56 1487.11 1024.358 30.45 30.31 10.266 3.49491 4.95506 31.56 1487.11 1024.361 30.75 30.61 10.264 3.49492 4.95531 31.56 1487.11 1024.364 31.05 30.91 10.264 3.49535 4.95593 31.56 1487.12 1024.368 31.35 31.21 10.263 3.49490 4.95543 31.56 1487.11 1024.367 31.65 31.51 10.264 3.49554 4.95625 31.57 1487.13 1024.373 31.95 31.80 10.262 3.49596 4.95713 31.57 1487.13 1024.379 32.25 32.10 10.260 3.49605 4.95747 31.57 1487.14 1024.382 32.55 32.40 10.260 3.49587 4.95734 31.57 1487.14 1024.383 32.85 32.70 10.260 3.49593 4.95737 31.57 1487.14 1024.384 33.15 33.00 10.260 3.49632 4.95791 31.58 1487.15 1024.389 33.45 33.30 10.261 3.49601 4.95737 31.57 1487.15 1024.387 33.75 33.60 10.260 3.49609 4.95764 31.57 1487.16 1024.390 34.05 33.89 10.258 3.49624 4.95811 31.58 1487.16 1024.394 34.35 34.19 10.258 3.49664 4.95862 31.58 1487.17 1024.398 34.65 34.49 10.259 3.49640 4.95816 31.58 1487.17 1024.396 34.95 34.79 10.259 3.49652 4.95829 31.58 1487.18 1024.398 35.25 35.09 10.257 3.49745 4.95989 31.59 1487.19 1024.408 35.55 35.39 10.258 3.49729 4.95959 31.59 1487.20 1024.408 35.85 35.69 10.255 3.49683 4.95934 31.59 1487.19 1024.408 36.15 35.98 10.251 3.49720 4.96048 31.59 1487.19 1024.416 36.45 36.28 10.253 3.49779 4.96093 31.60 1487.21 1024.419 36.75 36.58 10.259 3.49805 4.96048 31.59 1487.23 1024.418 37.05 36.88 10.260 3.49826 4.96070 31.60 1487.24 1024.420 37.35 37.18 10.259 3.49829 4.96087 31.60 1487.24 1024.422 37.65 37.48 10.259 3.49862 4.96131 31.60 1487.25 1024.426 37.95 37.78 10.259 3.49817 4.96068 31.59 1487.25 1024.424 38.25 38.07 10.251 3.49924 4.96328 31.61 1487.25 1024.440 38.56 38.39 10.256 3.49940 4.96284 31.61 1487.27 1024.439