LAST CHANGED : 2023/12/22 CRUISE NAME(S) : FKt230602 CRUISE DATES : 2023/06/02 to 2023/06/21 SHIP NAME : Falkor (too) PORTS : Puntarenas, Costa Rica to Puntarenas, Costa Rica CHIEF SCIENTIST : Beth Orcutt DATABASE NAME : a_ftoo DATA FILES : ftoo2023_152_09270.raw to ftoo2023_171_43200.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 : wh300 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 2023/06/02 02:36:31 off 120 70 2 7 2 -1.33 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: -1.33 additional rotation 0 final transducer angle is: -1.33 (2) scale factor original scale factor 1 additional scale factor (none) (3) ADCP (dx=starboard, dy=fwd) meters from GPS original: 0 0 correction 0 -14 final offset 0 -14 COMMENTS : I performed a dxdy calibration. A good estimate of heading correction and transducer offset is available from adjacent cruises. Data below the bottom was removed, as well as small bits of data at the the bottom of the sonars range. Editing and updating the dxdy correction improved the data during heading changes. PROCESSOR : Jamie Ash --- final processing parameters from dbinfo.txt ---------- #-------------------- ## (determined from "sonar"): model = wh ## (determined from "sonar"): frequency = 300 ## (determined from "sonar"): instname = wh300 ## (determined from "sonar"): pingtype = bb beamangle 20 cruisename FKt230602 datatype uhdas dbname a_ftoo ens_len 120 fixfile a_ftoo.gps frequency 300 hcorr_inst seapath instname wh300 model wh pingtype bb proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source nav sonar wh300 txy_file a_ftoo.agt xducer_dx 0 xducer_dy -14 yearbase 2023 ================================================== POST PROCESSING STEPS: ================================================== ------------------------------------------------------------------------------ ### 1. Check visual oddities ------------------------------------------------------------------------------ # I ran this to look for gaps in the cruise track. plot_nav.py nav/a*.gps # I ran this to look for gaps in the heading correction. figview.py # I ran this to look for missing heading correction values or missing positions. dataviewer.py # I ran this. catwt.py catxy.py **watertrack** ----------- Number of edited points: 43 out of 46 median mean std amplitude 1.0020 1.0002 0.0115 phase -0.0350 0.0231 0.6781 ----------- **transducer-gps offset** ----------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_ftoo.gps calculation done at 2023/06/21 12:07:30 xducer_dx = 0.614672 xducer_dy = -13.928428 signal = 768.719050 ----------- ------------------------------------------------------------------------------ ### 2. ADCP calibration ------------------------------------------------------------------------------ # I ran this to adjust the calibrations. quick_adcp.py --steps2rerun rotate:apply_edit:navsteps:calib --xducer_dy -14 --auto ### Run this: (look at the watertrack calibration again) catwt.py catxy.py ------------------------------------------------------------------------------ ### 3. Editing points ------------------------------------------------------------------------------ # To go through the dataset and edit out bad values. dataviewer.py -e # To recompute the calibration residuals. quick_adcp.py --steps2rerun navsteps:calib --auto # recheck the calibration coefficients. catwt.py catxy.py **transducer-gps offset** ----------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_ftoo.agt calculation done at 2023/11/04 01:47:41 xducer_dx = 0.227353 xducer_dy = 0.022215 signal = 768.719066 ----------- **watertrack** ----------- Number of edited points: 44 out of 46 median mean std amplitude 1.0055 1.0055 0.0076 phase -0.1190 -0.1120 0.4701 ----------- ------------------------------------------------------------------------------ ### 4. Check edited, calibrated dataset against original dataset ------------------------------------------------------------------------------ # Has this corrected the problems in the original? dataviewer.py -c . ../wh300 # To compare this sonar with another sonar. dataviewer.py -c ../os38nb . ------------------------------------------------------------------------------ ### 5. Make plots and files ------------------------------------------------------------------------------ # To divvy up the cruise into sections I ran this. mkdir webpy cp ../os38bb/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/wh300 FKt230602 wh300 --ship_name "Falkor too" ### Run this to look at the headers ncdump -h contour/wh300.nc | egrep '(cruise_id|sonar|yearbase)'