*2026/01/16 09:57:54.57 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 21:02:46.000 END TIME : UTC 2024/09/04 21:03:11.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 128 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.3 2 Depth metres 0.15 38.12 3 Temperature 'deg C (ITS90)' 10.013 17.765 4 Conductivity S/m 3.52732 3.90264 5 Conductance:Specific S/m 4.55712 5.03869 6 Salinity PSS-78 29.31 32.12 7 Speed:Sound m/s 1486.99 1508.71 8 Density kg/m^3 1021.024 1024.871 $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 : 242 LATITUDE : 48 56.27200 N ! (deg min) LONGITUDE : 125 5.58700 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_210246 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 128 128 MERGEHDR 1.3 2026/01/16 09:54:05 128 128 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 128 128 CALIB 12.1 2026/01/16 09:56:55 128 128 CLEAN 5.3 2026/01/16 09:57:54 128 128 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 17.765 3.90264 4.56292 29.37 1508.71 1021.024 0.45 0.45 17.356 3.86042 4.55712 29.31 1507.41 1021.075 0.75 0.75 16.821 3.87883 4.63738 29.86 1506.42 1021.618 1.05 1.05 16.684 3.86716 4.63867 29.86 1506.00 1021.652 1.35 1.35 16.531 3.85977 4.64684 29.91 1505.59 1021.727 1.65 1.65 16.411 3.85616 4.65598 29.97 1505.30 1021.800 1.95 1.95 16.038 3.84452 4.68409 30.15 1504.35 1022.022 2.25 2.25 15.697 3.83389 4.71033 30.32 1503.48 1022.227 2.55 2.54 15.121 3.80141 4.73743 30.47 1501.84 1022.472 2.85 2.84 14.416 3.75560 4.76399 30.61 1499.74 1022.729 3.15 3.14 13.772 3.70847 4.78241 30.70 1497.73 1022.925 3.45 3.44 13.136 3.69064 4.83872 31.05 1496.03 1023.321 3.75 3.74 12.784 3.68034 4.87029 31.24 1495.07 1023.540 4.05 4.04 12.562 3.67570 4.89280 31.38 1494.49 1023.691 4.35 4.34 12.353 3.67012 4.91277 31.50 1493.93 1023.827 4.65 4.64 12.220 3.65418 4.90886 31.46 1493.43 1023.821 4.95 4.93 12.124 3.64650 4.91120 31.47 1493.11 1023.846 5.25 5.23 12.003 3.63851 4.91648 31.49 1492.73 1023.889 5.55 5.53 11.863 3.63377 4.92874 31.56 1492.34 1023.973 5.85 5.83 11.763 3.63089 4.93828 31.62 1492.07 1024.037 6.15 6.13 11.704 3.62724 4.94118 31.64 1491.89 1024.060 6.45 6.43 11.638 3.62271 4.94397 31.65 1491.67 1024.083 6.75 6.73 11.585 3.62156 4.94953 31.68 1491.54 1024.120 7.05 7.03 11.554 3.62158 4.95378 31.71 1491.46 1024.148 7.35 7.32 11.531 3.62209 4.95759 31.73 1491.42 1024.173 7.65 7.62 11.510 3.62219 4.96053 31.75 1491.37 1024.192 7.95 7.92 11.484 3.62193 4.96370 31.77 1491.31 1024.213 8.25 8.22 11.472 3.61978 4.96244 31.76 1491.26 1024.209 8.55 8.52 11.460 3.61816 4.96178 31.76 1491.22 1024.208 8.85 8.82 11.436 3.61722 4.96377 31.77 1491.15 1024.222 9.15 9.12 11.415 3.61551 4.96429 31.77 1491.09 1024.228 9.45 9.41 11.401 3.61464 4.96500 31.77 1491.05 1024.235 9.75 9.71 11.387 3.61452 4.96674 31.78 1491.01 1024.247 10.05 10.01 11.372 3.61472 4.96913 31.80 1490.98 1024.263 10.35 10.31 11.362 3.61483 4.97066 31.81 1490.96 1024.273 10.65 10.61 11.351 3.61347 4.97032 31.80 1490.93 1024.274 10.95 10.91 11.340 3.61274 4.97071 31.80 1490.90 1024.278 11.25 11.21 11.331 3.61229 4.97142 31.81 1490.87 1024.284 11.55 11.50 11.290 3.61095 4.97514 31.83 1490.76 1024.310 11.85 11.80 11.249 3.60872 4.97774 31.84 1490.64 1024.329 12.15 12.10 11.229 3.60674 4.97771 31.84 1490.57 1024.332 12.45 12.40 11.213 3.60390 4.97599 31.83 1490.50 1024.325 12.75 12.70 11.200 3.60155 4.97456 31.82 1490.45 1024.320 13.05 13.00 11.171 3.60067 4.97733 31.83 1490.37 1024.339 13.35 13.30 11.141 3.60104 4.98197 31.86 1490.30 1024.368 13.65 13.59 11.133 3.60013 4.98170 31.86 1490.28 1024.369 13.95 13.89 11.127 3.59860 4.98053 31.85 1490.25 1024.364 14.25 14.19 11.126 3.59816 4.98007 31.85 1490.25 1024.363 14.55 14.49 11.112 3.59796 4.98166 31.86 1490.22 1024.374 14.85 14.79 11.107 3.59827 4.98275 31.86 1490.21 1024.382 15.15 15.09 11.097 3.59862 4.98460 31.87 1490.20 1024.394 15.45 15.39 11.083 3.59731 4.98482 31.87 1490.15 1024.398 15.75 15.68 11.074 3.59672 4.98518 31.88 1490.13 1024.402 16.05 15.98 11.059 3.59368 4.98299 31.86 1490.06 1024.392 16.35 16.28 11.040 3.59281 4.98442 31.87 1490.01 1024.403 16.65 16.58 11.022 3.59230 4.98625 31.88 1489.96 1024.416 16.95 16.88 11.014 3.59131 4.98605 31.87 1489.93 1024.417 17.25 17.18 11.014 3.59160 4.98641 31.88 1489.94 1024.420 17.55 17.47 11.004 3.59150 4.98765 31.88 1489.92 1024.429 17.85 17.77 10.991 3.59066 4.98826 31.89 1489.88 1024.435 18.15 18.07 10.956 3.58819 4.98975 31.89 1489.77 1024.447 18.45 18.37 10.941 3.58610 4.98884 31.88 1489.71 1024.445 18.75 18.67 10.890 3.58359 4.99247 31.90 1489.56 1024.470 19.05 18.97 10.929 3.58440 4.98823 31.88 1489.67 1024.445 19.35 19.27 10.842 3.57741 4.99050 31.88 1489.38 1024.466 19.65 19.56 10.803 3.57462 4.99209 31.89 1489.25 1024.479 19.95 19.86 10.754 3.57050 4.99311 31.89 1489.08 1024.490 20.25 20.16 10.736 3.57129 4.99681 31.92 1489.05 1024.513 20.55 20.46 10.707 3.56645 4.99411 31.89 1488.93 1024.502 20.85 20.76 10.662 3.56516 4.99854 31.92 1488.80 1024.531 21.15 21.06 10.631 3.56461 5.00212 31.94 1488.72 1024.555 21.45 21.36 10.615 3.56404 5.00351 31.95 1488.68 1024.565 21.75 21.65 10.606 3.56377 5.00450 31.95 1488.66 1024.572 22.05 21.95 10.584 3.56364 5.00738 31.97 1488.61 1024.591 22.35 22.25 10.546 3.56075 5.00867 31.98 1488.48 1024.602 22.65 22.55 10.518 3.55832 5.00913 31.98 1488.39 1024.608 22.95 22.85 10.490 3.55677 5.01095 31.99 1488.30 1024.622 23.25 23.15 10.466 3.55608 5.01343 32.00 1488.24 1024.638 23.55 23.44 10.471 3.55638 5.01310 32.00 1488.26 1024.637 23.85 23.74 10.451 3.55484 5.01376 32.00 1488.20 1024.644 24.15 24.04 10.446 3.55459 5.01411 32.00 1488.19 1024.647 24.45 24.34 10.437 3.55486 5.01573 32.01 1488.17 1024.658 24.75 24.64 10.449 3.55582 5.01547 32.01 1488.22 1024.657 25.05 24.94 10.454 3.55380 5.01181 31.99 1488.21 1024.638 25.35 25.24 10.433 3.55335 5.01414 32.00 1488.16 1024.653 25.65 25.53 10.415 3.55396 5.01755 32.02 1488.12 1024.675 25.95 25.83 10.411 3.55252 5.01611 32.01 1488.10 1024.668 26.25 26.13 10.407 3.55249 5.01672 32.01 1488.09 1024.673 26.55 26.43 10.411 3.55339 5.01734 32.02 1488.12 1024.678 26.85 26.73 10.411 3.55253 5.01610 32.01 1488.12 1024.672 27.15 27.03 10.406 3.55239 5.01670 32.01 1488.11 1024.677 27.45 27.32 10.402 3.55204 5.01676 32.01 1488.10 1024.679 27.75 27.62 10.383 3.55088 5.01776 32.02 1488.04 1024.687 28.05 27.92 10.381 3.55106 5.01831 32.02 1488.04 1024.692 28.35 28.22 10.369 3.55003 5.01862 32.02 1488.00 1024.695 28.65 28.52 10.355 3.54974 5.02009 32.03 1487.97 1024.706 28.95 28.82 10.351 3.54938 5.02026 32.03 1487.96 1024.708 29.25 29.12 10.343 3.54882 5.02052 32.03 1487.94 1024.712 29.55 29.41 10.329 3.54826 5.02179 32.04 1487.90 1024.721 29.85 29.71 10.316 3.54688 5.02167 32.04 1487.85 1024.722 30.15 30.01 10.287 3.54607 5.02455 32.05 1487.78 1024.742 30.45 30.31 10.267 3.54460 5.02533 32.06 1487.71 1024.749 30.75 30.61 10.255 3.54366 5.02580 32.06 1487.68 1024.753 31.05 30.91 10.235 3.54261 5.02712 32.06 1487.62 1024.763 31.35 31.20 10.232 3.54296 5.02802 32.07 1487.62 1024.770 31.65 31.50 10.227 3.54181 5.02710 32.06 1487.60 1024.766 31.95 31.80 10.224 3.54124 5.02678 32.06 1487.59 1024.766 32.25 32.10 10.213 3.54107 5.02807 32.07 1487.56 1024.775 32.55 32.40 10.206 3.54084 5.02870 32.07 1487.55 1024.780 32.85 32.70 10.196 3.53992 5.02886 32.07 1487.52 1024.783 33.15 33.00 10.175 3.53906 5.03059 32.08 1487.46 1024.795 33.45 33.29 10.141 3.53516 5.02992 32.07 1487.33 1024.795 33.75 33.59 10.125 3.53582 5.03324 32.09 1487.30 1024.816 34.05 33.89 10.116 3.53501 5.03338 32.09 1487.27 1024.818 34.35 34.19 10.115 3.53429 5.03243 32.09 1487.27 1024.814 34.65 34.49 10.113 3.53405 5.03245 32.09 1487.26 1024.816 34.95 34.79 10.112 3.53423 5.03273 32.09 1487.27 1024.819 35.25 35.08 10.109 3.53348 5.03217 32.08 1487.25 1024.817 35.55 35.38 10.095 3.53362 5.03433 32.10 1487.23 1024.831 35.85 35.68 10.091 3.53272 5.03367 32.09 1487.21 1024.829 36.15 35.98 10.086 3.53293 5.03460 32.10 1487.21 1024.836 36.45 36.28 10.086 3.53411 5.03639 32.11 1487.22 1024.847 36.75 36.58 10.090 3.53315 5.03447 32.10 1487.23 1024.838 37.05 36.87 10.082 3.53256 5.03478 32.10 1487.20 1024.841 37.35 37.17 10.078 3.53072 5.03262 32.08 1487.18 1024.831 37.65 37.47 10.057 3.52869 5.03278 32.08 1487.10 1024.834 37.95 37.77 10.013 3.52838 5.03869 32.12 1486.99 1024.871 38.30 38.12 10.015 3.52732 5.03681 32.10 1486.99 1024.862