*2026/01/16 10:37:45.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 01:14:00.000 END TIME : UTC 2025/01/23 01:14:28.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 141 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.23 2 Depth metres 0.15 42.04 3 Temperature 'deg C (ITS90)' 9.178 10.29 4 Conductivity S/m 3.31763 3.50575 5 Conductance:Specific S/m 4.84476 4.97858 6 Salinity PSS-78 30.66 31.71 7 Speed:Sound m/s 1481.72 1487.28 8 Density kg/m^3 1023.691 1024.545 $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 : 25 LATITUDE : 48 51.22100 N ! (deg min) LONGITUDE : 125 7.55980 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_011400 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 141 141 MERGEHDR 1.3 2026/01/16 10:35:38 141 141 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 141 141 CALIB 12.1 2026/01/16 10:37:10 141 141 CLEAN 5.3 2026/01/16 10:37:45 141 141 $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 10:36:37 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 9.293 3.32433 4.84702 30.69 1481.99 1023.698 0.45 0.45 9.254 3.32195 4.84902 30.69 1481.87 1023.712 0.75 0.75 9.239 3.31763 4.84476 30.66 1481.78 1023.691 1.05 1.05 9.235 3.32482 4.85593 30.74 1481.86 1023.754 1.35 1.34 9.205 3.32422 4.85930 30.76 1481.78 1023.775 1.65 1.64 9.178 3.32495 4.86419 30.79 1481.72 1023.804 1.95 1.94 9.215 3.32486 4.85872 30.76 1481.82 1023.774 2.25 2.24 9.285 3.32697 4.85190 30.72 1482.04 1023.734 2.55 2.54 9.308 3.33096 4.85450 30.74 1482.15 1023.748 2.85 2.84 9.343 3.33402 4.85394 30.74 1482.29 1023.745 3.15 3.14 9.396 3.34141 4.85733 30.77 1482.53 1023.762 3.45 3.44 9.436 3.35432 4.87038 30.87 1482.80 1023.833 3.75 3.73 9.483 3.36555 4.88007 30.94 1483.07 1023.885 4.05 4.03 9.524 3.36700 4.87637 30.92 1483.20 1023.863 4.35 4.33 9.557 3.36755 4.87249 30.90 1483.29 1023.842 4.65 4.63 9.569 3.36850 4.87218 30.90 1483.34 1023.840 4.95 4.93 9.579 3.36840 4.87060 30.89 1483.37 1023.832 5.25 5.23 9.586 3.36963 4.87144 30.89 1483.41 1023.838 5.55 5.53 9.587 3.36955 4.87116 30.89 1483.42 1023.838 5.85 5.82 9.588 3.36974 4.87120 30.89 1483.43 1023.839 6.15 6.12 9.591 3.37065 4.87211 30.90 1483.45 1023.845 6.45 6.42 9.594 3.36992 4.87066 30.89 1483.45 1023.838 6.75 6.72 9.595 3.37001 4.87067 30.89 1483.46 1023.840 7.05 7.02 9.594 3.37009 4.87091 30.89 1483.47 1023.842 7.35 7.32 9.594 3.37035 4.87134 30.89 1483.47 1023.846 7.65 7.62 9.593 3.36947 4.87015 30.88 1483.47 1023.841 7.95 7.92 9.595 3.36973 4.87030 30.89 1483.48 1023.843 8.25 8.21 9.595 3.37048 4.87139 30.89 1483.49 1023.850 8.55 8.51 9.597 3.37076 4.87151 30.89 1483.51 1023.852 8.85 8.81 9.597 3.37119 4.87202 30.90 1483.52 1023.856 9.15 9.11 9.597 3.37130 4.87221 30.90 1483.52 1023.858 9.45 9.41 9.597 3.37136 4.87238 30.90 1483.53 1023.860 9.75 9.71 9.595 3.37071 4.87166 30.89 1483.52 1023.858 10.05 10.01 9.589 3.36984 4.87121 30.89 1483.50 1023.857 10.35 10.31 9.588 3.37020 4.87190 30.89 1483.50 1023.862 10.65 10.60 9.591 3.36949 4.87042 30.88 1483.51 1023.855 10.95 10.90 9.601 3.37005 4.86993 30.88 1483.55 1023.853 11.25 11.20 9.616 3.37227 4.87092 30.89 1483.62 1023.859 11.55 11.50 9.633 3.37420 4.87130 30.90 1483.69 1023.861 11.85 11.80 9.654 3.37785 4.87363 30.91 1483.80 1023.874 12.15 12.10 9.666 3.38377 4.88047 30.96 1483.91 1023.912 12.45 12.40 9.672 3.38806 4.88584 31.00 1483.98 1023.943 12.75 12.69 9.701 3.38710 4.88043 30.97 1484.05 1023.912 13.05 12.99 9.717 3.38701 4.87808 30.95 1484.09 1023.900 13.35 13.29 9.729 3.38864 4.87873 30.96 1484.15 1023.904 13.65 13.59 9.748 3.39103 4.87951 30.97 1484.23 1023.908 13.95 13.89 9.768 3.39584 4.88359 31.00 1484.35 1023.931 14.25 14.19 9.781 3.39759 4.88420 31.00 1484.41 1023.935 14.55 14.49 9.813 3.40258 4.88687 31.03 1484.56 1023.949 14.85 14.79 9.862 3.40873 4.88894 31.05 1484.77 1023.958 15.15 15.08 9.905 3.41324 4.88928 31.06 1484.94 1023.959 15.45 15.38 9.943 3.42092 4.89495 31.10 1485.14 1023.989 15.75 15.68 9.977 3.42979 4.90296 31.16 1485.34 1024.032 16.05 15.98 10.018 3.44014 4.91191 31.23 1485.57 1024.079 16.35 16.28 10.063 3.44673 4.91502 31.26 1485.78 1024.095 16.65 16.58 10.098 3.45086 4.91601 31.27 1485.92 1024.099 16.95 16.88 10.130 3.45293 4.91458 31.26 1486.03 1024.091 17.25 17.17 10.150 3.45599 4.91602 31.27 1486.13 1024.098 17.55 17.47 10.164 3.45935 4.91884 31.30 1486.21 1024.114 17.85 17.77 10.175 3.46119 4.91999 31.31 1486.26 1024.121 18.15 18.07 10.185 3.46276 4.92077 31.31 1486.31 1024.126 18.45 18.37 10.196 3.46412 4.92124 31.32 1486.36 1024.129 18.75 18.67 10.200 3.46466 4.92134 31.32 1486.39 1024.130 19.05 18.97 10.203 3.46491 4.92129 31.32 1486.40 1024.131 19.35 19.27 10.207 3.46538 4.92148 31.32 1486.42 1024.133 19.65 19.56 10.211 3.46612 4.92191 31.32 1486.44 1024.137 19.95 19.86 10.222 3.46792 4.92298 31.33 1486.50 1024.143 20.25 20.16 10.236 3.46971 4.92357 31.34 1486.56 1024.147 20.55 20.46 10.247 3.47883 4.93493 31.42 1486.71 1024.210 20.85 20.76 10.258 3.48150 4.93723 31.44 1486.77 1024.223 21.15 21.06 10.273 3.48421 4.93888 31.45 1486.85 1024.232 21.45 21.36 10.284 3.48527 4.93882 31.45 1486.89 1024.232 21.75 21.65 10.288 3.48607 4.93940 31.45 1486.92 1024.236 22.05 21.95 10.290 3.48700 4.94046 31.46 1486.94 1024.243 22.35 22.25 10.290 3.48832 4.94240 31.48 1486.96 1024.255 22.65 22.55 10.290 3.48973 4.94442 31.49 1486.98 1024.268 22.95 22.85 10.286 3.48987 4.94506 31.49 1486.98 1024.273 23.25 23.15 10.284 3.49054 4.94637 31.50 1486.98 1024.281 23.55 23.45 10.282 3.49117 4.94751 31.51 1486.99 1024.289 23.85 23.74 10.281 3.49065 4.94693 31.51 1486.99 1024.287 24.15 24.04 10.282 3.49091 4.94720 31.51 1487.00 1024.290 24.45 24.34 10.280 3.49133 4.94807 31.51 1487.00 1024.296 24.75 24.64 10.280 3.49124 4.94797 31.51 1487.01 1024.297 25.05 24.94 10.277 3.49215 4.94957 31.52 1487.02 1024.307 25.35 25.24 10.277 3.49298 4.95073 31.53 1487.03 1024.315 25.65 25.54 10.276 3.49306 4.95101 31.53 1487.03 1024.318 25.95 25.83 10.276 3.49413 4.95251 31.54 1487.05 1024.327 26.25 26.13 10.275 3.49497 4.95390 31.55 1487.06 1024.336 26.55 26.43 10.274 3.49617 4.95574 31.57 1487.08 1024.348 26.85 26.73 10.273 3.49653 4.95639 31.57 1487.09 1024.353 27.15 27.03 10.272 3.49710 4.95737 31.58 1487.10 1024.359 27.45 27.33 10.270 3.49756 4.95831 31.58 1487.10 1024.366 27.75 27.63 10.268 3.49789 4.95902 31.59 1487.10 1024.371 28.05 27.92 10.266 3.49763 4.95890 31.59 1487.10 1024.372 28.35 28.22 10.264 3.49752 4.95903 31.59 1487.10 1024.374 28.65 28.52 10.262 3.49806 4.96008 31.59 1487.11 1024.381 28.95 28.82 10.260 3.49789 4.96010 31.59 1487.10 1024.383 29.25 29.12 10.258 3.49775 4.96016 31.59 1487.10 1024.385 29.55 29.42 10.258 3.49794 4.96055 31.60 1487.11 1024.388 29.85 29.72 10.256 3.49851 4.96152 31.60 1487.12 1024.395 30.15 30.01 10.253 3.49918 4.96292 31.61 1487.12 1024.404 30.45 30.31 10.249 3.49978 4.96430 31.62 1487.12 1024.413 30.75 30.61 10.250 3.50065 4.96547 31.63 1487.14 1024.421 31.05 30.91 10.250 3.50117 4.96624 31.64 1487.15 1024.426 31.35 31.21 10.248 3.50064 4.96573 31.63 1487.14 1024.425 31.65 31.51 10.248 3.50125 4.96660 31.64 1487.16 1024.431 31.95 31.80 10.249 3.50107 4.96625 31.64 1487.16 1024.430 32.25 32.10 10.248 3.50144 4.96685 31.64 1487.17 1024.435 32.55 32.40 10.247 3.50105 4.96650 31.64 1487.17 1024.434 32.85 32.70 10.246 3.50171 4.96749 31.64 1487.18 1024.441 33.15 33.00 10.244 3.50160 4.96769 31.64 1487.17 1024.443 33.45 33.30 10.240 3.50243 4.96940 31.66 1487.18 1024.454 33.75 33.60 10.241 3.50290 4.96989 31.66 1487.19 1024.458 34.05 33.89 10.242 3.50255 4.96927 31.65 1487.20 1024.456 34.35 34.19 10.242 3.50314 4.97016 31.66 1487.21 1024.462 34.65 34.49 10.240 3.50300 4.97017 31.66 1487.21 1024.464 34.95 34.79 10.238 3.50269 4.97000 31.66 1487.20 1024.464 35.25 35.09 10.236 3.50261 4.97027 31.66 1487.20 1024.467 35.55 35.39 10.235 3.50379 4.97209 31.67 1487.22 1024.479 35.85 35.69 10.234 3.50363 4.97199 31.67 1487.22 1024.479 36.15 35.98 10.233 3.50423 4.97299 31.68 1487.23 1024.486 36.45 36.28 10.231 3.50410 4.97309 31.68 1487.22 1024.488 36.75 36.58 10.231 3.50432 4.97331 31.68 1487.23 1024.490 37.05 36.88 10.230 3.50372 4.97267 31.68 1487.23 1024.488 37.35 37.18 10.230 3.50425 4.97338 31.68 1487.24 1024.494 37.65 37.48 10.228 3.50482 4.97454 31.69 1487.24 1024.501 37.95 37.78 10.227 3.50457 4.97433 31.69 1487.24 1024.501 38.25 38.07 10.221 3.50423 4.97462 31.69 1487.23 1024.505 38.55 38.37 10.218 3.50447 4.97539 31.69 1487.23 1024.510 38.85 38.67 10.218 3.50470 4.97566 31.70 1487.24 1024.513 39.15 38.97 10.219 3.50511 4.97617 31.70 1487.25 1024.517 39.45 39.27 10.220 3.50575 4.97697 31.70 1487.26 1024.523 39.75 39.57 10.219 3.50536 4.97648 31.70 1487.26 1024.521 40.05 39.87 10.218 3.50527 4.97660 31.70 1487.26 1024.523 40.35 40.16 10.216 3.50475 4.97602 31.70 1487.26 1024.522 40.65 40.46 10.216 3.50574 4.97745 31.71 1487.27 1024.531 40.95 40.76 10.214 3.50562 4.97753 31.71 1487.27 1024.533 41.25 41.06 10.216 3.50571 4.97748 31.71 1487.28 1024.534 41.55 41.36 10.211 3.50560 4.97805 31.71 1487.27 1024.538 41.85 41.66 10.207 3.50531 4.97817 31.71 1487.26 1024.540 42.23 42.04 10.200 3.50490 4.97858 31.71 1487.25 1024.545