LAST CHANGED : 2023/12/22 CRUISE NAME(S) : FKt230802 CRUISE DATES : 2023/08/02 to 2023/08/07 SHIP NAME : Falkor (too) PORTS : Balboa, Panama to Balboa, Panama CHIEF SCIENTIST : Laura Simon Sanchez DATABASE NAME : a_ftoo DATA FILES : ftoo2023_213_58376.raw to ftoo2023_217_50400.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 2023/08/02 16:18:00 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: none 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=1 xducer_dy=-10 correction 0 0 final offset 1 -10 COMMENTS : For this cruise, there was no need to perform any calibrations for this cruise. Data below the bottom was removed, as well as small bits of data at the bottom of the sonars range was removed. The os38nb has an apparent tidal beam caught in action, coming back in to port. 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 FKt230802 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 ------------------------------------------------------------------------------ ### Run this: (to look for gaps in the cruise track) plot_nav.py nav/a*.gps figview.py dataviewer.py # Everything looks good. No gaps in the heading correction exist, so # patch_hcorr.py is not needed. Some data below the bottom and at the bottom # of the sonar's range will need to be removed manually. ------------------------------------------------------------------------------ ### 2. ADCP calibration ------------------------------------------------------------------------------ # For this cruise, no calibration is necessary. ------------------------------------------------------------------------------ ### 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 . # The differences in water velocity I attribute to the difference in the sonar # resolution. That is, the wh300 has much higher resolution than the os38nb. # The os38bb was not run this cruise, so I am unable to compare the narrow band # to the broad band. ------------------------------------------------------------------------------ ### 5. Make plots and files ------------------------------------------------------------------------------ # I ran this to divvy up the cruise sections. quick_web.py --interactive # 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 FKt230802 os38nb --ship_name "Falkor (too)" # I ran this to check the headers. ncdump -h contour/os38nb.nc | egrep '(cruise_id|sonar|yearbase)'