*2026/01/16 10:37:43.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 20:43:51.000 END TIME : UTC 2025/01/21 20:44:17.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 132 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.52 2 Depth metres 0.15 39.49 3 Temperature 'deg C (ITS90)' 8.32 9.315 4 Conductivity S/m 2.55346 2.91682 5 Conductance:Specific S/m 3.83171 4.25871 6 Salinity PSS-78 23.58 26.58 7 Speed:Sound m/s 1469.6 1477.44 8 Density kg/m^3 1018.279 1020.678 $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 : 7 LATITUDE : 49 11.91990 N ! (deg min) LONGITUDE : 125 45.84210 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_204351 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 132 132 MERGEHDR 1.3 2026/01/16 10:35:37 132 132 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 132 132 CALIB 12.1 2026/01/16 10:37:09 132 132 CLEAN 5.3 2026/01/16 10:37:43 132 132 $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 8.320 2.55346 3.83171 23.58 1469.60 1018.279 0.45 0.45 8.530 2.62458 3.91376 24.15 1471.13 1018.706 0.75 0.75 8.574 2.64171 3.93411 24.30 1471.48 1018.813 1.05 1.05 8.615 2.65726 3.95249 24.43 1471.80 1018.910 1.35 1.35 8.681 2.67877 3.97671 24.60 1472.26 1019.036 1.65 1.65 8.783 2.69915 3.99481 24.73 1472.82 1019.129 1.95 1.95 8.808 2.71753 4.01908 24.90 1473.13 1019.258 2.25 2.25 8.851 2.72318 4.02226 24.93 1473.33 1019.274 2.55 2.55 8.944 2.73254 4.02508 24.96 1473.72 1019.286 2.85 2.85 8.966 2.73605 4.02762 24.98 1473.84 1019.299 3.15 3.15 8.979 2.73999 4.03188 25.01 1473.93 1019.323 3.45 3.45 8.993 2.74230 4.03363 25.02 1474.00 1019.332 3.75 3.75 9.014 2.74713 4.03820 25.05 1474.13 1019.357 4.05 4.05 9.032 2.74902 4.03889 25.06 1474.21 1019.361 4.35 4.35 9.041 2.75195 4.04212 25.08 1474.27 1019.379 4.65 4.65 9.051 2.75392 4.04385 25.09 1474.33 1019.389 4.95 4.95 9.060 2.75700 4.04725 25.12 1474.40 1019.408 5.25 5.25 9.068 2.75881 4.04897 25.13 1474.45 1019.418 5.55 5.55 9.076 2.76051 4.05054 25.14 1474.50 1019.427 5.85 5.85 9.085 2.76319 4.05337 25.16 1474.56 1019.443 6.15 6.15 9.097 2.76505 4.05465 25.17 1474.63 1019.450 6.45 6.45 9.112 2.76973 4.05977 25.21 1474.73 1019.478 6.75 6.75 9.124 2.77340 4.06377 25.24 1474.82 1019.500 7.05 7.05 9.137 2.78083 4.07305 25.30 1474.95 1019.550 7.35 7.35 9.150 2.78452 4.07688 25.33 1475.04 1019.571 7.65 7.65 9.165 2.78598 4.07721 25.33 1475.11 1019.573 7.95 7.95 9.185 2.79351 4.08587 25.39 1475.26 1019.620 8.25 8.25 9.197 2.79814 4.09121 25.43 1475.36 1019.649 8.55 8.55 9.206 2.80662 4.10252 25.51 1475.49 1019.710 8.85 8.85 9.240 2.81102 4.10491 25.53 1475.65 1019.722 9.15 9.15 9.256 2.81481 4.10844 25.56 1475.75 1019.741 9.45 9.45 9.258 2.81713 4.11158 25.58 1475.78 1019.759 9.75 9.75 9.262 2.82361 4.12061 25.64 1475.88 1019.809 10.05 10.05 9.269 2.82720 4.12499 25.67 1475.95 1019.833 10.35 10.35 9.274 2.82804 4.12565 25.68 1475.98 1019.837 10.65 10.65 9.277 2.82994 4.12805 25.69 1476.01 1019.851 10.95 10.95 9.278 2.83101 4.12949 25.70 1476.03 1019.860 11.25 11.25 9.279 2.83246 4.13148 25.72 1476.06 1019.872 11.55 11.55 9.279 2.83270 4.13180 25.72 1476.07 1019.875 11.85 11.85 9.280 2.83340 4.13275 25.72 1476.08 1019.882 12.15 12.15 9.281 2.83539 4.13552 25.74 1476.11 1019.898 12.45 12.45 9.280 2.83631 4.13693 25.75 1476.13 1019.907 12.75 12.75 9.280 2.83716 4.13817 25.76 1476.14 1019.914 13.05 13.05 9.281 2.83791 4.13914 25.77 1476.16 1019.921 13.35 13.35 9.283 2.83925 4.14093 25.78 1476.19 1019.932 13.65 13.65 9.285 2.84259 4.14547 25.81 1476.24 1019.957 13.95 13.95 9.290 2.84851 4.15358 25.87 1476.33 1020.002 14.25 14.25 9.294 2.85521 4.16289 25.93 1476.43 1020.052 14.55 14.55 9.298 2.85773 4.16598 25.95 1476.48 1020.070 14.85 14.85 9.302 2.86031 4.16930 25.98 1476.52 1020.089 15.15 15.15 9.307 2.86448 4.17479 26.02 1476.59 1020.119 15.45 15.45 9.311 2.86786 4.17926 26.05 1476.65 1020.144 15.75 15.75 9.313 2.86812 4.17940 26.05 1476.66 1020.146 16.05 16.05 9.312 2.86872 4.18033 26.05 1476.67 1020.152 16.35 16.35 9.314 2.86866 4.18006 26.05 1476.68 1020.152 16.65 16.65 9.314 2.87126 4.18383 26.08 1476.72 1020.174 16.95 16.95 9.315 2.87428 4.18814 26.11 1476.76 1020.198 17.25 17.25 9.314 2.87441 4.18836 26.11 1476.77 1020.201 17.55 17.55 9.312 2.87494 4.18942 26.12 1476.77 1020.208 17.85 17.85 9.313 2.88022 4.19703 26.17 1476.84 1020.250 18.15 18.14 9.312 2.88261 4.20065 26.19 1476.87 1020.270 18.45 18.44 9.310 2.88448 4.20357 26.21 1476.90 1020.287 18.75 18.74 9.308 2.88617 4.20623 26.23 1476.92 1020.303 19.05 19.04 9.307 2.88796 4.20895 26.25 1476.94 1020.319 19.35 19.34 9.307 2.88857 4.20984 26.25 1476.95 1020.325 19.65 19.64 9.307 2.88905 4.21064 26.26 1476.96 1020.331 19.95 19.94 9.305 2.89025 4.21262 26.27 1476.98 1020.343 20.25 20.24 9.304 2.89099 4.21375 26.28 1476.99 1020.350 20.55 20.54 9.304 2.89093 4.21367 26.28 1476.99 1020.351 20.85 20.84 9.304 2.89154 4.21462 26.29 1477.00 1020.357 21.15 21.14 9.303 2.89099 4.21385 26.28 1477.00 1020.355 21.45 21.44 9.304 2.89182 4.21500 26.29 1477.02 1020.362 21.75 21.74 9.304 2.89239 4.21588 26.29 1477.03 1020.368 22.05 22.04 9.303 2.89310 4.21700 26.30 1477.04 1020.375 22.35 22.34 9.301 2.89335 4.21754 26.31 1477.04 1020.380 22.65 22.64 9.300 2.89358 4.21804 26.31 1477.05 1020.384 22.95 22.94 9.300 2.89406 4.21871 26.31 1477.06 1020.389 23.25 23.24 9.302 2.89396 4.21838 26.31 1477.07 1020.388 23.55 23.54 9.299 2.89466 4.21976 26.32 1477.07 1020.397 23.85 23.84 9.296 2.89555 4.22143 26.33 1477.08 1020.407 24.15 24.14 9.293 2.89588 4.22222 26.34 1477.08 1020.413 24.45 24.44 9.290 2.89657 4.22362 26.35 1477.08 1020.422 24.75 24.74 9.289 2.89786 4.22570 26.36 1477.10 1020.435 25.05 25.04 9.287 2.89909 4.22763 26.37 1477.12 1020.446 25.35 25.34 9.288 2.89891 4.22724 26.37 1477.12 1020.445 25.65 25.64 9.286 2.90009 4.22924 26.38 1477.13 1020.457 25.95 25.94 9.283 2.90253 4.23321 26.41 1477.16 1020.480 26.25 26.24 9.279 2.90369 4.23532 26.42 1477.17 1020.493 26.55 26.54 9.276 2.90379 4.23584 26.43 1477.17 1020.497 26.85 26.84 9.276 2.90402 4.23623 26.43 1477.17 1020.501 27.15 27.14 9.275 2.90420 4.23667 26.43 1477.18 1020.505 27.45 27.44 9.274 2.90424 4.23677 26.43 1477.18 1020.506 27.75 27.74 9.277 2.90427 4.23653 26.43 1477.19 1020.506 28.05 28.03 9.281 2.90396 4.23554 26.42 1477.20 1020.502 28.35 28.33 9.276 2.90407 4.23627 26.43 1477.20 1020.507 28.65 28.63 9.274 2.90509 4.23804 26.44 1477.21 1020.518 28.95 28.93 9.269 2.90520 4.23880 26.45 1477.20 1020.524 29.25 29.23 9.265 2.90617 4.24071 26.46 1477.21 1020.536 29.55 29.53 9.263 2.90621 4.24098 26.46 1477.21 1020.539 29.85 29.83 9.264 2.90639 4.24121 26.46 1477.21 1020.541 30.15 30.13 9.262 2.90637 4.24133 26.46 1477.22 1020.543 30.45 30.43 9.262 2.90718 4.24258 26.47 1477.23 1020.551 30.75 30.73 9.261 2.90709 4.24255 26.47 1477.23 1020.552 31.05 31.03 9.262 2.90819 4.24409 26.48 1477.25 1020.562 31.35 31.33 9.260 2.90890 4.24535 26.49 1477.26 1020.570 31.65 31.63 9.257 2.90981 4.24699 26.50 1477.27 1020.580 31.95 31.93 9.256 2.91043 4.24811 26.51 1477.27 1020.588 32.25 32.23 9.255 2.91114 4.24927 26.51 1477.28 1020.595 32.55 32.53 9.255 2.91119 4.24935 26.52 1477.29 1020.597 32.85 32.83 9.254 2.91130 4.24955 26.52 1477.30 1020.599 33.15 33.13 9.254 2.91178 4.25031 26.52 1477.30 1020.605 33.45 33.43 9.252 2.91218 4.25111 26.53 1477.31 1020.610 33.75 33.73 9.253 2.91256 4.25156 26.53 1477.32 1020.614 34.05 34.03 9.255 2.91294 4.25188 26.53 1477.34 1020.617 34.35 34.33 9.258 2.91356 4.25236 26.54 1477.36 1020.621 34.65 34.63 9.259 2.91465 4.25387 26.55 1477.38 1020.630 34.95 34.93 9.256 2.91492 4.25456 26.55 1477.38 1020.635 35.25 35.23 9.255 2.91528 4.25531 26.56 1477.38 1020.641 35.55 35.53 9.254 2.91557 4.25583 26.56 1477.39 1020.645 35.85 35.83 9.253 2.91582 4.25624 26.56 1477.40 1020.648 36.15 36.13 9.251 2.91624 4.25715 26.57 1477.40 1020.654 36.45 36.43 9.251 2.91647 4.25751 26.57 1477.41 1020.658 36.75 36.72 9.251 2.91647 4.25750 26.57 1477.41 1020.659 37.05 37.02 9.250 2.91682 4.25817 26.57 1477.42 1020.664 37.35 37.32 9.250 2.91672 4.25803 26.57 1477.42 1020.664 37.65 37.62 9.249 2.91633 4.25760 26.57 1477.42 1020.663 37.95 37.92 9.249 2.91658 4.25793 26.57 1477.43 1020.667 38.25 38.22 9.249 2.91645 4.25767 26.57 1477.43 1020.666 38.55 38.52 9.248 2.91620 4.25750 26.57 1477.43 1020.667 38.85 38.82 9.247 2.91674 4.25842 26.57 1477.44 1020.673 39.15 39.12 9.245 2.91666 4.25850 26.57 1477.44 1020.675 39.52 39.49 9.244 2.91669 4.25871 26.58 1477.44 1020.678