LAST CHANGED : 2024/09/19 20:36:01 CRUISE NAME(S) : FKt240902 CRUISE DATES : 2024/09/09 15:39:39 to 2024/09/19 20:35:41 SHIP NAME : Falkor too PORTS : Puerto Montt, Chile to Talcahuano, Chile CHIEF SCIENTIST : Sebastian Watt DATABASE NAME : a_ftoo DATA FILES : ftoo2024_245_60501.raw to ftoo2024_262_72000.raw STATUS : to do done ------ ----------- averaged [ X ] loaded [ X ] check heading correction [ X ] calibration [ X ] edited [ X ] re-check heading correction [ X ] check editing [ X ] figures [ X ] INSTRUMENT : os38 ACQUISITION : PROGRAM : uhdas PROCESSING : python LOGGING : PARAMETERS : BT : bottom track mode (on or off) SI : sampling interval or averaging period for ensemble (sec) NB : number of bins BL : bin length (m) TD : transducer depth (m) BK : blanking length (m) HO : heading offset applied by DAS (deg) HB : heading bias (deg) CRPH : compensation for roll-pitch-heading, 1:on, 0:off) yy/mm/dd hh:mm:ss BT SI NB BL TD BK HO HB CRPH 2024/09/09 15:39:39 on 300 100 12 7 16 0.21 0.00 0001 2024/09/16 14:35:18 on 300 100 12 7 16 0.21 0.00 0001 2024/09/17 21:50:47 on 300 100 12 7 16 0.21 0.00 0001 2024/09/18 22:50:45 on 300 100 12 7 16 0.21 0.00 0001 HEADING : PRIMARY : heading from gyro1 CORRECTION : heading correction from seapath NOTE: time-dependent heading corrections applied IN the ensembles POSITIONS : gps positions from posmv_gps CALIBRATION : (check original processing parameters) (1) transducer alignment original transducer alignment: 0.21 additional rotation 0.5 final transducer angle is: 0.21 - (0.5) = -0.29 (2) scale factor original scale factor 1 additional scale factor 1.005 (3) ADCP (dx=starboard, dy=fwd) meters from GPS xducer_dx xducer_dy original: 1 -10 correction: 0 0 final offset: 1 -10 COMMENTS : This cruise is over shallow water, through narrow passageways. Because of this strong currents are present. Bad data was manually removed, and the uvship algorithm was applied to the os38nb and os38bb. PROCESSOR : Jamie --- original processing parameters from dbinfo.txt ---------- ## (determined from "sonar"): model = os ## (determined from "sonar"): frequency = 38 ## (determined from "sonar"): instname = os38 ## (determined from "sonar"): pingtype = bb beamangle 30 cruisename FKt240902 datatype uhdas dbname a_ftoo ens_len 300 fixfile a_ftoo.gps frequency 38 hcorr_inst seapath instname os38 model os pingtype bb proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source nav sonar os38bb txy_file a_ftoo.agt xducer_dx 1 xducer_dy -10 yearbase 2024 ================================================== POST PROCESSING STEPS: ================================================== ------------------------------------------------------------------------------- ### 1. Check visual oddities ------------------------------------------------------------------------------- ### Run this: (to look for gaps in the cruise track) plot_nav.py nav/a*.gps ### Run this: to look for gaps in the heading correction. figview.py ### Run this: (looking for missing heading correction values or missing positions) dataviewer.py ### Run this: catwt.py catbt.py catxy.py **watertrack** ----------- Number of edited points: 12 out of 16 median mean std amplitude 1.0075 1.0119 0.0119 phase 0.4755 0.9764 1.2431 ----------- **transducer-gps offset** ----------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_ftoo.agt calculation done at 2024/09/19 20:36:01 xducer_dx = 4.062655 xducer_dy = 13.302892 signal = 407.519313 ----------- **bottomtrack** ----------- unedited: 622 points edited: 261 points, 2.0 min speed, 2.5 max dev median mean std amplitude 1.0002 1.0003 0.0074 phase 0.3435 0.3016 0.3684 ----------- # No gaps in the heading correction. ------------------------------------------------------------------------------- ### 2. ADCP calibration ------------------------------------------------------------------------------- Don't do this now ------------------------------------------------------------------------------- ### 3. Editing points ------------------------------------------------------------------------------- ### Run this: (to go through the dataset and edit out bad values) dataviewer.py -e ### Run this: (to recompute the calibration residuals) quick_adcp.py --steps2rerun navsteps:calib --auto ### Apply uvship. quick_adcp.py --steps2rerun navsteps:calib --refuv_source uvship --auto #Apply final calibration quick_adcp.py --steps2rerun rotate:navsteps:calib --rotate_amplitude 1.005 --rotate_angle 0.5 --auto **watertrack** ------------ Number of edited points: 8 out of 9 amp = 1.0056 + -0.0014 (t - 262.2) phase = 0.14 + 0.6887 (t - 262.2) median mean std amplitude 1.0025 1.0056 0.0074 phase -0.1860 0.1439 0.9350 ------------ ------------------------------------------------------------------------------- ### 5. Check edited, calibrated dataset against original dataset ------------------------------------------------------------------------------- ### Run this to compare this sonar with another sonar (after both are finished) dataviewer.py -c ../os38nb . ------------------------------------------------------------------------------- ### 6. Make plots and files ------------------------------------------------------------------------------- mkdir webpy cp ../wh300/webpy/sectinfo.txt webpy quick_web.py --redo ### Run this to extract matlab files quick_adcp.py --steps2rerun matfiles --auto ### Run this to extract a netCDF file adcp_nc.py adcpdb contour/os38bb FKt240902 os38bb --ship_name "Falkor (too)" ### Run this to look at the headers ncdump contour/os38bb.nc -h ------------------------------------------------------------------------------- ### 7. Final dbinfo. ------------------------------------------------------------------------------- ## (determined from "sonar"): model = os ## (determined from "sonar"): frequency = 38 ## (determined from "sonar"): instname = os38 ## (determined from "sonar"): pingtype = bb beamangle 30 cruisename FKt240902 datatype uhdas dbname a_ftoo ens_len 300 fixfile a_ftoo.gps frequency 38 hcorr_inst seapath instname os38 model os pingtype bb proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source uvship sonar os38bb txy_file a_ftoo.agt xducer_dx 1 xducer_dy -10 yearbase 2024