LAST CHANGED : 2023/12/22 CRUISE NAME(S) : FKt230918 CRUISE DATES : 2023/09/18 to 2023/09/22 SHIP NAME : Falkor (too) PORTS : Puerto Ayora, Galapagos, Ecuador to Golfito, Costa Rica CHIEF SCIENTIST : Katleen Robert DATABASE NAME : a_ftoo DATA FILES : ftoo2023_260_07041.raw to ftoo2023_263_79200.raw STATUS : to do done ------ ----------- averaged [ X ] at sea loaded [ X ] at sea NOTE: heading correction instrument exists NOTE: time-dependent heading corrections applied IN the ensembles (see cal/rotate/ens_hcorr.ang) 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 2023/09/18 02:02:28 off 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 (see cal/rotate/ens_hcorr.ang) POSITIONS : gps positions from posmv_gps CALIBRATION : (check original processing parameters) (1) transducer alignment original transducer alignment: 0.21 additional rotation 0 final transducer angle is: 0.21 (2) scale factor original scale factor 1 additional scale factor (none) (3) ADCP (dx=starboard, dy=fwd) meters from GPS original: xducer_dx=0 xducer_dy=-10 correction 0 0 final offset 0 -10 COMMENTS : Data below the bottom was removed, as well as small bits of data at the the bottom of the sonars range was removed. For this cruise, there was no need to perform any additional calibrations. PROCESSOR : Jamie Ash --- final 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 FKt230918 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 2023 ================================================== POST PROCESSING STEPS: ================================================== ------------------------------------------------------------------------------ ### 1. Check visual oddities ------------------------------------------------------------------------------ # To generate the figures for figview.py I ran this. quick_adcp.py --steps2rerun navsteps:calib --auto # I ran this to look for gaps in the cruise track. plot_nav.py nav/a*.gps figview.py dataviewer.py catwt.py catxy.py **watertrack** ----------- Number of edited points: 16 out of 20 median mean std amplitude 1.0060 1.0033 0.0101 phase 0.0665 0.1317 0.3471 ----------- **transducer-gps offset** ----------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_ftoo.agt calculation done at 2023/12/06 23:18:01 xducer_dx = -1.499353 xducer_dy = 2.760798 signal = 754.114110 ----------- # Gaps in the heading correction exist and patch_hcorr.py was needed. # I ran this to interpolate for missing heading correction fixes: cd cal/rotate patch_hcorr.py cd ../.. ------------------------------------------------------------------------------ ### 2. ADCP calibration ------------------------------------------------------------------------------ # Not needed here. Calibrations from earlier cruises with better # statistics were entered into the UHDAS processing at sea. ------------------------------------------------------------------------------ ### 3. Editing points ------------------------------------------------------------------------------ # To go through the dataset and edit out bad values I ran dataviewer.py -e # To recompute the calibration residuals I ran quick_adcp.py --steps2rerun navsteps:calib --auto ------------------------------------------------------------------------------ ### 4. Check edited, calibrated dataset against original dataset ------------------------------------------------------------------------------ ### Run this: (Has this corrected the problems in the original?) dataviewer.py -c . ../os38nb ### Run this to compare this sonar with another sonar (after both are finished) dataviewer.py -c ../wh300.cal . ------------------------------------------------------------------------------ ### 5. Make plots and files ------------------------------------------------------------------------------ # I ran this to divvy up the cruise sections. cp ../wh300/webpy/sectinfo.txt ./webpy/ quick_web.py --redo # I ran this to extract matlab files. quick_adcp.py --steps2rerun matfiles --auto # I ran this to extract a netCDF file. adcp_nc.py adcpdb contour/os38nb FKt230918 os38nb --ship_name "Falkor (too)" # I ran this to look at the headers. ncdump -h contour/os38nb.nc | egrep '(cruise_id|sonar|yearbase)'