*2026/01/16 10:37:43.40 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 18:37:37.000 END TIME : UTC 2025/01/21 18:38:02.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 130 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.96 2 Depth metres 0.15 38.93 3 Temperature 'deg C (ITS90)' 7.83 9.353 4 Conductivity S/m 2.5342 2.91442 5 Conductance:Specific S/m 3.85286 4.25495 6 Salinity PSS-78 23.67 26.55 7 Speed:Sound m/s 1468.04 1477.44 8 Density kg/m^3 1018.409 1020.655 $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 : 6 LATITUDE : 49 11.22230 N ! (deg min) LONGITUDE : 125 46.38880 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_183737 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 130 130 MERGEHDR 1.3 2026/01/16 10:35:37 130 130 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 130 130 CALIB 12.1 2026/01/16 10:37:09 130 130 CLEAN 5.3 2026/01/16 10:37:43 130 130 $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 7.830 2.54943 3.88274 23.87 1468.05 1018.567 0.45 0.45 7.887 2.53420 3.85286 23.67 1468.04 1018.409 0.75 0.75 7.906 2.56953 3.90438 24.02 1468.55 1018.682 1.05 1.05 8.043 2.59563 3.92761 24.19 1469.30 1018.801 1.35 1.35 8.183 2.61542 3.94095 24.30 1469.98 1018.868 1.65 1.65 8.343 2.63494 3.95129 24.39 1470.71 1018.918 1.95 1.95 8.415 2.64645 3.95999 24.45 1471.08 1018.962 2.25 2.25 8.498 2.65077 3.95660 24.44 1471.38 1018.942 2.55 2.55 8.571 2.66664 3.97167 24.55 1471.80 1019.020 2.85 2.85 8.685 2.67729 3.97398 24.58 1472.28 1019.028 3.15 3.15 8.765 2.69421 3.98971 24.69 1472.73 1019.109 3.45 3.45 8.823 2.70473 3.99831 24.76 1473.04 1019.153 3.75 3.75 8.892 2.71793 4.00964 24.84 1473.41 1019.211 4.05 4.05 8.996 2.73472 4.02215 24.94 1473.93 1019.274 4.35 4.35 9.104 2.76282 4.05056 25.15 1474.59 1019.420 4.65 4.65 9.150 2.78219 4.07352 25.31 1474.97 1019.542 4.95 4.95 9.176 2.78488 4.07429 25.32 1475.08 1019.546 5.25 5.25 9.194 2.78691 4.07514 25.32 1475.16 1019.550 5.55 5.55 9.209 2.78810 4.07509 25.32 1475.23 1019.550 5.85 5.85 9.225 2.79196 4.07881 25.35 1475.32 1019.571 6.15 6.15 9.236 2.79720 4.08517 25.40 1475.42 1019.605 6.45 6.45 9.243 2.80671 4.09829 25.49 1475.56 1019.676 6.75 6.75 9.250 2.81246 4.10583 25.54 1475.66 1019.717 7.05 7.05 9.257 2.81594 4.10999 25.57 1475.73 1019.741 7.35 7.35 9.266 2.81773 4.11161 25.58 1475.78 1019.750 7.65 7.65 9.272 2.81931 4.11319 25.59 1475.82 1019.759 7.95 7.95 9.278 2.82089 4.11471 25.60 1475.86 1019.768 8.25 8.25 9.283 2.82338 4.11777 25.62 1475.91 1019.786 8.55 8.55 9.294 2.83364 4.13145 25.72 1476.07 1019.860 8.85 8.85 9.301 2.84460 4.14652 25.82 1476.23 1019.941 9.15 9.15 9.308 2.85254 4.15726 25.90 1476.35 1019.999 9.45 9.45 9.317 2.86120 4.16878 25.98 1476.49 1020.062 9.75 9.75 9.324 2.86544 4.17410 26.01 1476.57 1020.091 10.05 10.05 9.329 2.86757 4.17662 26.03 1476.61 1020.106 10.35 10.35 9.334 2.86911 4.17821 26.04 1476.65 1020.115 10.65 10.65 9.337 2.86990 4.17903 26.05 1476.67 1020.121 10.95 10.95 9.339 2.87135 4.18087 26.06 1476.70 1020.132 11.25 11.25 9.342 2.87157 4.18085 26.06 1476.72 1020.133 11.55 11.55 9.343 2.87256 4.18212 26.07 1476.74 1020.141 11.85 11.85 9.346 2.87363 4.18331 26.08 1476.76 1020.148 12.15 12.15 9.346 2.87568 4.18630 26.10 1476.79 1020.166 12.45 12.45 9.349 2.87713 4.18810 26.11 1476.82 1020.176 12.75 12.75 9.350 2.87845 4.18990 26.12 1476.85 1020.187 13.05 13.05 9.350 2.87996 4.19211 26.14 1476.87 1020.200 13.35 13.35 9.350 2.88058 4.19292 26.15 1476.88 1020.206 13.65 13.65 9.351 2.88217 4.19520 26.16 1476.91 1020.219 13.95 13.95 9.350 2.88233 4.19552 26.16 1476.91 1020.222 14.25 14.25 9.352 2.88278 4.19594 26.17 1476.93 1020.226 14.55 14.55 9.353 2.88321 4.19644 26.17 1476.94 1020.230 14.85 14.85 9.352 2.88343 4.19693 26.17 1476.95 1020.234 15.15 15.15 9.352 2.88342 4.19684 26.17 1476.95 1020.235 15.45 15.45 9.352 2.88387 4.19754 26.18 1476.96 1020.240 15.75 15.75 9.350 2.88421 4.19827 26.18 1476.97 1020.245 16.05 16.05 9.351 2.88438 4.19843 26.18 1476.97 1020.247 16.35 16.34 9.350 2.88470 4.19899 26.19 1476.98 1020.251 16.65 16.64 9.349 2.88643 4.20161 26.20 1477.00 1020.267 16.95 16.94 9.349 2.88924 4.20566 26.23 1477.04 1020.290 17.25 17.24 9.349 2.88877 4.20507 26.23 1477.04 1020.288 17.55 17.54 9.347 2.89061 4.20799 26.25 1477.06 1020.305 17.85 17.84 9.345 2.89018 4.20754 26.24 1477.06 1020.304 18.15 18.14 9.344 2.89168 4.20988 26.26 1477.08 1020.318 18.45 18.44 9.343 2.89402 4.21343 26.28 1477.11 1020.338 18.75 18.74 9.345 2.89523 4.21488 26.29 1477.13 1020.347 19.05 19.04 9.348 2.89524 4.21452 26.29 1477.15 1020.346 19.35 19.34 9.350 2.89591 4.21524 26.30 1477.17 1020.352 19.65 19.64 9.351 2.89675 4.21642 26.30 1477.18 1020.359 19.95 19.94 9.351 2.89735 4.21722 26.31 1477.20 1020.365 20.25 20.24 9.351 2.89767 4.21777 26.31 1477.20 1020.369 20.55 20.54 9.350 2.89830 4.21878 26.32 1477.21 1020.376 20.85 20.84 9.350 2.89906 4.21986 26.33 1477.23 1020.383 21.15 21.14 9.348 2.89868 4.21953 26.32 1477.22 1020.382 21.45 21.44 9.346 2.89916 4.22053 26.33 1477.23 1020.389 21.75 21.74 9.341 2.89844 4.22004 26.33 1477.21 1020.388 22.05 22.04 9.339 2.90044 4.22326 26.35 1477.23 1020.407 22.35 22.34 9.343 2.90129 4.22401 26.35 1477.26 1020.412 22.65 22.64 9.339 2.90138 4.22459 26.36 1477.25 1020.417 22.95 22.94 9.336 2.90227 4.22630 26.37 1477.26 1020.427 23.25 23.24 9.333 2.90241 4.22685 26.37 1477.26 1020.432 23.55 23.54 9.329 2.90296 4.22812 26.38 1477.26 1020.440 23.85 23.84 9.326 2.90280 4.22824 26.38 1477.25 1020.442 24.15 24.14 9.323 2.90322 4.22923 26.39 1477.25 1020.449 24.45 24.44 9.320 2.90272 4.22888 26.38 1477.24 1020.448 24.75 24.74 9.316 2.90309 4.22995 26.39 1477.24 1020.456 25.05 25.04 9.312 2.90304 4.23038 26.39 1477.23 1020.460 25.35 25.34 9.308 2.90284 4.23058 26.39 1477.22 1020.462 25.65 25.64 9.303 2.90292 4.23131 26.40 1477.22 1020.468 25.95 25.94 9.300 2.90267 4.23133 26.40 1477.21 1020.469 26.25 26.24 9.297 2.90228 4.23110 26.40 1477.20 1020.469 26.55 26.53 9.293 2.90239 4.23175 26.40 1477.20 1020.474 26.85 26.83 9.290 2.90184 4.23128 26.40 1477.19 1020.473 27.15 27.13 9.287 2.90209 4.23200 26.40 1477.19 1020.479 27.45 27.43 9.281 2.90260 4.23358 26.41 1477.18 1020.489 27.75 27.73 9.275 2.90286 4.23467 26.42 1477.17 1020.496 28.05 28.03 9.272 2.90305 4.23528 26.42 1477.17 1020.501 28.35 28.33 9.269 2.90305 4.23566 26.42 1477.17 1020.505 28.65 28.63 9.269 2.90316 4.23583 26.43 1477.17 1020.507 28.95 28.93 9.268 2.90379 4.23688 26.43 1477.18 1020.514 29.25 29.23 9.266 2.90392 4.23736 26.44 1477.18 1020.518 29.55 29.53 9.264 2.90441 4.23829 26.44 1477.19 1020.524 29.85 29.83 9.264 2.90495 4.23904 26.45 1477.20 1020.529 30.15 30.13 9.262 2.90449 4.23860 26.44 1477.19 1020.528 30.45 30.43 9.259 2.90544 4.24044 26.46 1477.20 1020.540 30.75 30.73 9.265 2.90522 4.23939 26.45 1477.22 1020.535 31.05 31.03 9.264 2.90545 4.23985 26.45 1477.22 1020.539 31.35 31.33 9.264 2.90709 4.24225 26.47 1477.25 1020.553 31.65 31.63 9.268 2.90756 4.24234 26.47 1477.27 1020.555 31.95 31.93 9.271 2.90814 4.24282 26.47 1477.29 1020.558 32.25 32.23 9.273 2.90859 4.24330 26.48 1477.30 1020.562 32.55 32.53 9.274 2.90899 4.24373 26.48 1477.32 1020.566 32.85 32.83 9.274 2.90961 4.24467 26.49 1477.33 1020.572 33.15 33.13 9.273 2.91029 4.24577 26.49 1477.34 1020.579 33.45 33.43 9.272 2.91028 4.24587 26.49 1477.34 1020.581 33.75 33.73 9.272 2.91025 4.24576 26.49 1477.35 1020.582 34.05 34.03 9.272 2.91037 4.24601 26.49 1477.35 1020.584 34.35 34.33 9.273 2.91018 4.24560 26.49 1477.36 1020.584 34.65 34.63 9.272 2.91003 4.24549 26.49 1477.36 1020.584 34.95 34.93 9.271 2.91050 4.24636 26.50 1477.37 1020.590 35.25 35.22 9.269 2.91044 4.24645 26.50 1477.36 1020.592 35.55 35.52 9.271 2.91074 4.24661 26.50 1477.38 1020.594 35.85 35.82 9.266 2.91049 4.24685 26.50 1477.37 1020.597 36.15 36.12 9.260 2.91049 4.24759 26.50 1477.36 1020.603 36.45 36.42 9.262 2.91147 4.24878 26.51 1477.38 1020.610 36.75 36.72 9.260 2.91201 4.24984 26.52 1477.38 1020.617 37.05 37.02 9.262 2.91225 4.25001 26.52 1477.39 1020.619 37.35 37.32 9.265 2.91365 4.25169 26.53 1477.42 1020.630 37.65 37.62 9.263 2.91434 4.25291 26.54 1477.43 1020.638 37.95 37.92 9.262 2.91435 4.25303 26.54 1477.44 1020.639 38.25 38.22 9.260 2.91442 4.25343 26.54 1477.43 1020.643 38.55 38.52 9.259 2.91427 4.25328 26.54 1477.44 1020.644 38.96 38.93 9.245 2.91419 4.25495 26.55 1477.40 1020.655