LAST CHANGED : 2020/08/29 13:02:38 CRUISE NAME(S) : FK200802 CRUISE DATES : 2020/07/31 23:18:41 to 2020/08/29 13:02:24 SHIP NAME : Falkor PORTS : Cairns, AUS to Cairns, AUS CHIEF SCIENTIST : Brendan Brooke DATABASE NAME : a_fk DATA FILES : fk2020_212_83890.raw to fk2020_241_43200.raw STATUS : to do done ------ ----------- averaged [ X ] loaded [ X ] # loaded 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 2020/07/31 23:18:41 off 120 70 2 7 2 44.63 0.00 0001 2020/08/02 04:56:17 off 120 70 2 7 2 44.63 0.00 0001 2020/08/29 11:28:22 on 120 70 2 7 2 44.63 0.00 0001 HEADING : PRIMARY : heading from gyro CORRECTION : heading correction from seapath NOTE: time-dependent heading corrections applied IN the ensembles (see cal/rotate/ens_hcorr.ang) POSITIONS : gps positions from cnav CALIBRATION : wh300 original alignment: 44.63 additional rotation: none final transducer angle is: 44.75 (44.63) - (-0.12) original scalefactor: 1.0 additional scale factor (none) final scale factor: 1.0 COMMENTS : Falkor ROV cruise off of Australia - lots of small groups of ADCP data. Falkor cruises have a small number of edited watertrack points due to procedures. In this case we use a nearby cruise with sufficient points as a measure of whether the calibration is good or not. In this case FK200308 is used, with the statistics: **watertrack** ------------ Number of edited points: 22 out of 37 amp = 0.9998 + -0.0000 (t - 83.0) phase = -0.11 + 0.0098 (t - 83.0) median mean std amplitude 1.0020 0.9998 0.0087 phase -0.0960 -0.1090 0.2784 ------------ On top of this we apply a phase adjustment based on bottom track data. PROCESSOR : Joseph Gum --- processing parameters ---------- ## (determined from "sonar"): model = wh ## (determined from "sonar"): frequency = 300 ## (determined from "sonar"): instname = wh300 ## (determined from "sonar"): pingtype = bb beamangle 20 cruisename FK200802 datatype uhdas ens_len 120 fixfile a_fk.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_fk.agt xducer_dx 2 xducer_dy 18 yearbase 2020 ========================================= PROCESSING STEPS: ========================================= # Processing commands start in the wh300 directory. # 1. Check heading correction $ plot_nav.py nav/a_fk.gps $ figview.py No missing heading fixes. # 2. ADCP calibration $ catwt **watertrack** ------------ Number of edited points: 11 out of 15 amp = 1.0073 + -0.0007 (t - 222.1) phase = 0.15 + -0.0225 (t - 222.1) median mean std amplitude 1.0070 1.0073 0.0158 phase -0.0330 0.1525 1.0679 ------------ $ catbt **bottomtrack** ------------ unedited: 39 points edited: 38 points, 2.0 min speed, 2.5 max dev median mean std amplitude 1.0000 0.9998 0.0017 phase -0.1461 -0.1081 0.1717 ------------ The bottom track phase data does not agree with the flanking cruise data and so we will apply a correction to the cruise based on the bottom track phase. This will be done after editing. $ catxy **transducer-gps offset** ------------ guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_fk.agt calculation done at 2020/08/29 13:02:37 xducer_dx = -8.528092 xducer_dy = 9.276960 signal = 534.236733 ------------ Signal is under 1000, most likely no adjustment needed. Heading straight to editing points. # 3. Editing points $ dataviewer.py -e Applied neighbor algorithm requiring at least *1* full neighbor to count. $ quick_adcp.py --steps2rerun navsteps:calib --auto $ catwt **watertrack** ------------ Number of edited points: 11 out of 15 amp = 1.0073 + -0.0007 (t - 222.1) phase = 0.13 + -0.0225 (t - 222.1) median mean std amplitude 1.0070 1.0073 0.0160 phase -0.0700 0.1318 1.0380 ------------ $ catbt **bottomtrack** ------------ unedited: 39 points edited: 37 points, 2.0 min speed, 2.5 max dev median mean std amplitude 1.0000 1.0000 0.0017 phase -0.1473 -0.1201 0.1756 ------------ # 4. Now apply the remaining phase calibration. $ quick_adcp.py --steps2rerun rotate:apply_edit:navsteps:calib --rotate_angle -0.13 --auto $ catbt **bottomtrack** ------------ unedited: 39 points edited: 37 points, 2.0 min speed, 2.5 max dev median mean std amplitude 1.0000 1.0000 0.0016 phase 0.0000 0.0180 0.1824 ------------ # 5. Re-check heading correction $ figview.py Seems fine. # 6. Make plots and files $ quick_web.py --interactive $ figview.py webpy $ quick_adcp.py --steps2rerun matfiles --auto $ adcp_nc.py adcpdb contour/wh300 FK200802 wh300 --ship_name Falkor $ ncdump -h contour/wh300.nc