LAST CHANGED : 2024/09/19 20:36:07 CRUISE NAME(S) : FKt240902 CRUISE DATES : 2024/09/02 16:53:25 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 2024/09/02 16:53:25 off 300 75 24 7 16 0.21 0.00 0001 2024/09/16 14:35:18 on 300 75 24 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 = nb 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 nb proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source nav sonar os38nb 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 figview.py catxy.py catwt.py **watertrack** ----------- Number of edited points: 35 out of 60 median mean std amplitude 1.0040 1.0045 0.0163 phase 0.4800 0.6111 0.8850 ----------- **transducer-gps offset** ----------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_ftoo.agt calculation done at 2024/09/19 20:36:07 xducer_dx = 1.617985 xducer_dy = 3.290842 signal = 2798.306885 ----------- # No gaps in the heading correction. ------------------------------------------------------------------------------ ### 2. ADCP calibration ------------------------------------------------------------------------------ Do not apply yet ------------------------------------------------------------------------------ ### 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 the uvship algorith. 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: 44 out of 64 amp = 0.9997 + 0.0006 (t - 251.9) phase = -0.19 + 0.0035 (t - 251.9) median mean std amplitude 0.9990 0.9997 0.0171 phase -0.0880 -0.1866 0.9763 ------------ ------------------------------------------------------------------------------ ### 5. Check edited, calibrated dataset against original dataset ------------------------------------------------------------------------------ ### Run this to compare this sonar with another sonar (after both are finished) dataviewer.py -c ../wh300 . # The comparison is okay. There are differnces due to the resolution of the # os38nb and the wh300 which is to be expected. ------------------------------------------------------------------------------ ### 6. Make plots and files ------------------------------------------------------------------------------ ### To section off the data and re-make the figures. 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/os38nb FKt240902 os38nb --ship_name "Falkor (too)" ### Run this to look at the headers ncdump contour/os38nb.nc -h ------------------------------------------------------------------------------ ### 6. Make plots and files ------------------------------------------------------------------------------ ## (determined from "sonar"): model = os ## (determined from "sonar"): frequency = 38 ## (determined from "sonar"): instname = os38 ## (determined from "sonar"): pingtype = nb 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 nb proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source uvship sonar os38nb txy_file a_ftoo.agt xducer_dx 1 xducer_dy -10 yearbase 2024