*2026/01/16 10:37:49.83 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 19:55:43.000 END TIME : UTC 2025/03/11 19:56:09.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.29 2 Depth metres 0.15 40.23 3 Temperature 'deg C (ITS90)' 7.922 8.505 4 Conductivity S/m 2.53003 2.99031 5 Conductance:Specific S/m 3.8425 4.46251 6 Salinity PSS-78 23.6 27.89 7 Speed:Sound m/s 1468.1 1476.27 8 Density kg/m^3 1018.354 1021.813 $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 : 79 LATITUDE : 49 15.17050 N ! (deg min) LONGITUDE : 125 51.52670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_195543 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 135 135 MERGEHDR 1.3 2026/01/16 10:35:41 135 135 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 135 135 CALIB 12.1 2026/01/16 10:37:13 135 135 CLEAN 5.3 2026/01/16 10:37:49 135 135 $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 7.941 2.53726 3.85117 23.67 1468.24 1018.397 0.45 0.45 7.941 2.53191 3.84308 23.61 1468.18 1018.355 0.75 0.75 7.922 2.53003 3.84250 23.60 1468.10 1018.354 1.05 1.05 7.922 2.53588 3.85134 23.66 1468.18 1018.402 1.35 1.35 7.931 2.55243 3.87543 23.83 1468.42 1018.530 1.65 1.65 7.944 2.57437 3.90720 24.04 1468.74 1018.699 1.95 1.95 7.953 2.58886 3.92807 24.19 1468.96 1018.811 2.25 2.25 7.955 2.59943 3.94394 24.29 1469.10 1018.896 2.55 2.55 7.958 2.60862 3.95745 24.39 1469.23 1018.969 2.85 2.85 7.970 2.62054 3.97417 24.50 1469.42 1019.058 3.15 3.15 7.994 2.63733 3.99664 24.65 1469.71 1019.178 3.45 3.45 8.028 2.65474 4.01892 24.81 1470.04 1019.297 3.75 3.75 8.072 2.67846 4.04945 25.02 1470.48 1019.459 4.05 4.05 8.152 2.71682 4.09757 25.36 1471.21 1019.713 4.35 4.35 8.202 2.76029 4.15676 25.77 1471.91 1020.029 4.65 4.65 8.241 2.77149 4.16881 25.86 1472.17 1020.093 4.95 4.95 8.281 2.78146 4.17868 25.93 1472.42 1020.145 5.25 5.25 8.323 2.79032 4.18681 25.99 1472.66 1020.189 5.55 5.55 8.348 2.81168 4.21566 26.19 1473.01 1020.343 5.85 5.85 8.365 2.83986 4.25580 26.46 1473.42 1020.559 6.15 6.15 8.384 2.86103 4.28510 26.67 1473.74 1020.716 6.45 6.45 8.401 2.86585 4.29012 26.70 1473.86 1020.744 6.75 6.75 8.413 2.86872 4.29285 26.72 1473.94 1020.760 7.05 7.05 8.421 2.87006 4.29385 26.73 1473.98 1020.766 7.35 7.35 8.426 2.87085 4.29436 26.74 1474.01 1020.770 7.65 7.65 8.430 2.87188 4.29541 26.74 1474.04 1020.776 7.95 7.95 8.433 2.87311 4.29688 26.75 1474.07 1020.786 8.25 8.25 8.436 2.87438 4.29836 26.76 1474.10 1020.795 8.55 8.55 8.438 2.87615 4.30073 26.78 1474.13 1020.809 8.85 8.85 8.442 2.87698 4.30144 26.79 1474.16 1020.814 9.15 9.15 8.446 2.88045 4.30612 26.82 1474.22 1020.840 9.45 9.45 8.448 2.88172 4.30770 26.83 1474.25 1020.850 9.75 9.75 8.452 2.88196 4.30765 26.83 1474.26 1020.850 10.05 10.04 8.455 2.88544 4.31237 26.86 1474.32 1020.877 10.35 10.34 8.458 2.88778 4.31548 26.88 1474.36 1020.895 10.65 10.64 8.460 2.88909 4.31717 26.90 1474.39 1020.905 10.95 10.94 8.464 2.89122 4.31991 26.91 1474.43 1020.921 11.25 11.24 8.465 2.89207 4.32104 26.92 1474.45 1020.928 11.55 11.54 8.465 2.89246 4.32161 26.93 1474.46 1020.933 11.85 11.84 8.463 2.89256 4.32201 26.93 1474.46 1020.936 12.15 12.14 8.463 2.89216 4.32146 26.93 1474.46 1020.935 12.45 12.44 8.463 2.89184 4.32100 26.92 1474.46 1020.933 12.75 12.74 8.463 2.89262 4.32205 26.93 1474.48 1020.940 13.05 13.04 8.463 2.89227 4.32158 26.93 1474.48 1020.939 13.35 13.34 8.464 2.89245 4.32177 26.93 1474.49 1020.941 13.65 13.64 8.464 2.89247 4.32173 26.93 1474.49 1020.942 13.95 13.94 8.465 2.89291 4.32234 26.93 1474.50 1020.947 14.25 14.24 8.465 2.89287 4.32229 26.93 1474.51 1020.948 14.55 14.54 8.465 2.89317 4.32273 26.93 1474.52 1020.952 14.85 14.84 8.464 2.89416 4.32426 26.94 1474.53 1020.961 15.15 15.14 8.464 2.89474 4.32516 26.95 1474.54 1020.967 15.45 15.44 8.464 2.89468 4.32510 26.95 1474.55 1020.968 15.75 15.74 8.462 2.89452 4.32502 26.95 1474.55 1020.969 16.05 16.04 8.462 2.89526 4.32622 26.96 1474.56 1020.977 16.35 16.34 8.462 2.89607 4.32737 26.96 1474.58 1020.984 16.65 16.63 8.463 2.89673 4.32824 26.97 1474.59 1020.990 16.95 16.93 8.463 2.89892 4.33149 26.99 1474.62 1021.009 17.25 17.23 8.462 2.90251 4.33704 27.03 1474.67 1021.040 17.55 17.53 8.459 2.90829 4.34605 27.09 1474.74 1021.090 17.85 17.83 8.457 2.91244 4.35245 27.14 1474.79 1021.126 18.15 18.13 8.459 2.91305 4.35310 27.14 1474.81 1021.131 18.45 18.43 8.461 2.91279 4.35247 27.14 1474.82 1021.128 18.75 18.73 8.462 2.91356 4.35350 27.14 1474.83 1021.135 19.05 19.03 8.461 2.91526 4.35625 27.16 1474.86 1021.151 19.35 19.33 8.458 2.91588 4.35756 27.17 1474.86 1021.160 19.65 19.63 8.456 2.91640 4.35856 27.18 1474.87 1021.167 19.95 19.93 8.454 2.91636 4.35875 27.18 1474.87 1021.169 20.25 20.23 8.453 2.91652 4.35913 27.18 1474.87 1021.172 20.55 20.53 8.453 2.91676 4.35945 27.18 1474.88 1021.175 20.85 20.83 8.454 2.91737 4.36024 27.19 1474.89 1021.181 21.15 21.13 8.455 2.91798 4.36104 27.19 1474.91 1021.186 21.45 21.43 8.455 2.91802 4.36107 27.19 1474.91 1021.188 21.75 21.73 8.455 2.91814 4.36129 27.19 1474.92 1021.190 22.05 22.03 8.455 2.91822 4.36142 27.19 1474.92 1021.192 22.35 22.33 8.456 2.91869 4.36205 27.20 1474.94 1021.197 22.65 22.62 8.456 2.91909 4.36251 27.20 1474.95 1021.201 22.95 22.92 8.457 2.92013 4.36407 27.21 1474.97 1021.210 23.25 23.22 8.456 2.92107 4.36550 27.22 1474.98 1021.219 23.55 23.52 8.458 2.92256 4.36751 27.24 1475.01 1021.231 23.85 23.82 8.456 2.92453 4.37076 27.26 1475.03 1021.250 24.15 24.12 8.455 2.92520 4.37191 27.27 1475.05 1021.258 24.45 24.42 8.452 2.92527 4.37228 27.27 1475.04 1021.261 24.75 24.72 8.451 2.92547 4.37274 27.27 1475.05 1021.265 25.05 25.02 8.449 2.92579 4.37347 27.28 1475.05 1021.270 25.35 25.32 8.447 2.92668 4.37508 27.29 1475.06 1021.280 25.65 25.62 8.445 2.92720 4.37618 27.29 1475.07 1021.288 25.95 25.92 8.444 2.92872 4.37850 27.31 1475.09 1021.301 26.25 26.22 8.446 2.93058 4.38111 27.33 1475.12 1021.317 26.55 26.52 8.446 2.93258 4.38400 27.35 1475.15 1021.333 26.85 26.82 8.447 2.93272 4.38416 27.35 1475.16 1021.336 27.15 27.12 8.447 2.93275 4.38412 27.35 1475.17 1021.337 27.45 27.42 8.447 2.93294 4.38447 27.35 1475.17 1021.340 27.75 27.72 8.447 2.93349 4.38525 27.36 1475.19 1021.345 28.05 28.01 8.448 2.93328 4.38484 27.35 1475.19 1021.344 28.35 28.31 8.450 2.93369 4.38521 27.36 1475.21 1021.348 28.65 28.61 8.450 2.93437 4.38619 27.36 1475.22 1021.354 28.95 28.91 8.450 2.93468 4.38666 27.37 1475.23 1021.358 29.25 29.21 8.452 2.93586 4.38823 27.38 1475.25 1021.368 29.55 29.51 8.455 2.93675 4.38912 27.38 1475.28 1021.374 29.85 29.81 8.458 2.93711 4.38931 27.38 1475.29 1021.376 30.15 30.11 8.458 2.93683 4.38887 27.38 1475.30 1021.375 30.45 30.41 8.460 2.93758 4.38970 27.39 1475.32 1021.380 30.75 30.71 8.461 2.93793 4.39006 27.39 1475.33 1021.384 31.05 31.01 8.461 2.93974 4.39273 27.41 1475.36 1021.399 31.35 31.31 8.463 2.93977 4.39263 27.41 1475.37 1021.400 31.65 31.61 8.464 2.93985 4.39259 27.41 1475.38 1021.401 31.95 31.91 8.465 2.94032 4.39316 27.41 1475.39 1021.405 32.25 32.21 8.466 2.94062 4.39350 27.41 1475.40 1021.408 32.55 32.51 8.467 2.94058 4.39331 27.41 1475.41 1021.409 32.85 32.81 8.466 2.94074 4.39357 27.41 1475.41 1021.411 33.15 33.10 8.467 2.94072 4.39347 27.41 1475.42 1021.412 33.45 33.40 8.468 2.94116 4.39404 27.42 1475.43 1021.416 33.75 33.70 8.469 2.94190 4.39498 27.42 1475.45 1021.423 34.05 34.00 8.470 2.94224 4.39529 27.43 1475.46 1021.426 34.35 34.30 8.473 2.94344 4.39677 27.44 1475.49 1021.435 34.65 34.60 8.473 2.94451 4.39831 27.45 1475.51 1021.444 34.95 34.90 8.474 2.94758 4.40277 27.48 1475.56 1021.469 35.25 35.20 8.476 2.95014 4.40632 27.50 1475.60 1021.490 35.55 35.50 8.478 2.95224 4.40923 27.52 1475.64 1021.507 35.85 35.80 8.478 2.95550 4.41403 27.55 1475.68 1021.534 36.15 36.10 8.479 2.95648 4.41544 27.56 1475.70 1021.543 36.45 36.40 8.479 2.95874 4.41884 27.59 1475.73 1021.562 36.75 36.70 8.480 2.96151 4.42287 27.62 1475.78 1021.585 37.05 37.00 8.480 2.96791 4.43243 27.68 1475.86 1021.638 37.35 37.30 8.481 2.97203 4.43841 27.72 1475.92 1021.672 37.65 37.60 8.482 2.97469 4.44223 27.75 1475.96 1021.693 37.95 37.89 8.486 2.97652 4.44448 27.76 1476.00 1021.707 38.25 38.19 8.488 2.97881 4.44756 27.79 1476.04 1021.724 38.55 38.49 8.489 2.97904 4.44778 27.79 1476.05 1021.727 38.85 38.79 8.491 2.97927 4.44790 27.79 1476.07 1021.729 39.15 39.09 8.492 2.98043 4.44946 27.80 1476.09 1021.738 39.45 39.39 8.494 2.98119 4.45039 27.81 1476.11 1021.745 39.75 39.69 8.496 2.98345 4.45345 27.83 1476.15 1021.762 40.05 39.99 8.499 2.98953 4.46207 27.89 1476.24 1021.810 40.29 40.23 8.505 2.99031 4.46251 27.89 1476.27 1021.813