LAST CHANGED : 2024/09/07 03:41:58 CRUISE NAME(S) : FKt240708 CRUISE DATES : 2024/07/14 09:37:27 to 2024/08/08 02:38:19 SHIP NAME : Falkor (too) PORTS : Callao, Peru to Valparaiso, Chile CHIEF SCIENTIST : Tomer Ketter DATABASE NAME : aship DATA FILES : ftoo2024_195_34526.raw to ftoo2024_220_07200.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 : 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 2024/07/14 09:37:27 off 120 70 2 7 2 -1.33 0.00 0001 2024/07/14 19:37:26 off 120 70 2 7 2 -1.33 0.00 0001 2024/07/18 10:58:30 off 120 70 2 7 2 -1.33 0.00 0001 2024/07/22 23:00:22 off 120 70 2 7 2 -1.33 0.00 0001 2024/07/23 09:00:22 off 120 70 2 7 2 -1.33 0.00 0001 2024/07/30 08:49:02 off 120 70 2 7 2 -1.33 0.00 0001 2024/07/30 18:49:03 off 120 70 2 7 2 -1.33 0.00 0001 2024/08/01 22:18:28 off 120 70 2 7 2 -1.33 0.00 0001 2024/08/02 08:18:28 off 120 70 2 7 2 -1.33 0.00 0001 2024/08/07 13:58:20 off 120 70 2 7 2 -1.33 0.00 0001 HEADING : PRIMARY : heading from gyro1 CORRECTION : heading correction from seapath 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 1.008 (3) ADCP (dx=starboard, dy=fwd) meters from GPS xducer_dx xducer_dy original: 1 -14 correction 0 0 final offset 1 -14 COMMENTS : Two gaps in heading correction, patched with patch_hcorr.py wh300 surface data was edited due to interference. Horizontal scarring at 400 meters in os38nb data resulted in removal of data from 0-400 meters. Uvship was used to alleviate vertical scarring during ship speed transitions. PROCESSOR : Vincent Johnson --- 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 badbeam None beam_order None beamangle 20 configtype python cruisename FKt240708 datatype uhdas dbname aship ens_len 120 fixfile aship.gps hcorr_inst seapath pgmin 50 pingpref None proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source uvship sonar wh300 txy_file aship.agt xducer_dx 1 xducer_dy -14 yearbase 2024 ================================================== POST PROCESSING STEPS: ================================================== ## 0. This dataset was collected in 2 parts; reprocessing involved ### - merging the parts back together ### - use a ping_editparams.txt file to address "bad correlation near the surface" #name, value pairs #-------------------- ampfilt 40 bigtarget_ampthresh 55 bigtarget_lgb_margin 0.5 bigtarget_mab_window 11 cor_cutoff 70 ecutoff 0.5 estd_cutoff 0 max_search_depth 500 refavg_valcutoff 1 rl_endbin 20 rl_startbin 2 slc_bincutoff 15 <==== slc_deficit 15 <==== weakprof_percent 50 -------------------------- ### 1. Check visual oddities -------------------------- # Check for gaps in the heading corrections and view other cruise plots: figview.py ---------------------------------------- **watertrack** ---------------------------------------- median mean std amplitude 1.0105 1.0106 0.0158 phase 0.0015 0.0191 0.5459 ---------------------------------------- # Gaps were present in heading correction. patch_hcorr.py applied to interpolate for missing heading correction fixes: cd cal/rotate patch_hcorr.py # Checked calibration coeffieicent. catwt.py # Original Calibration: # New watertrack calibration: ---------------------------------------- **watertrack** ---------------------------------------- median mean std amplitude 1.0100 1.0102 0.0150 phase 0.0100 0.0238 0.5566 ---------------------------------------- ---------------------------------------- ### 2. ADCP calibration ---------------------------------------- # No calibration adjustment yet ---------------------------------------- ### 3. Editing points ---------------------------------------- # Apply uvship to wh300 quick_adcp.py --steps2rerun navsteps:calib --refuv_source uvship --auto # Edit out bad values: dataviewer.py -e # Apply editing: quick_adcp.py --steps2rerun navsteps:calib --auto # Check calibration after editing and applying uvship: catwt.py ---------------------------------------- **watertrack** ---------------------------------------- Number of edited points: 45 out of 50 median mean std amplitude 1.0100 1.0089 0.0132 phase 0.0120 0.0793 0.4656 ---------------------------------------- catxy.py ---------------------------------------- **transducer-gps offset** ---------------------------------------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from aship.agt calculation done at 2024/12/21 01:40:33 xducer_dx = -0.754059 xducer_dy = -0.083055 signal = 806.184746 ---------------------------------------- #Final ADCP calibration applied: quick_adcp.py --steps2rerun rotate:navsteps:calib --rotate_amplitude 1.008 --auto **watertrack** ------------ Number of edited points: 45 out of 51 amp = 1.0009 + -0.0005 (t - 205.0) phase = 0.08 + 0.0019 (t - 205.0) median mean std amplitude 1.0020 1.0009 0.0131 phase 0.0150 0.0785 0.4654 ---------------------------------------- ### 4. Re-check heading correction and other figures ---------------------------------------- # Recheck figures: figview.py ---------------------------------------- ### 5. Check edited, calibrated dataset against original dataset ---------------------------------------- # Compare edited with uvship dataset to original: dataviewer.py -c . ../wh300.orig # Compare wh300 with os38nb: dataviewer.py -c ../os38nb . # There is a resolution difference between the os38nb and wh300, which is expected between sonars due to range differences. Uvship helped smooth underway biases, notably during sudden ship velocity changes. ---------------------------------------- ### 6. Make plots and files ---------------------------------------- mkdir webpy cp ../wh300.uvship/webpy/sectinfo.txt webpy quick_web.py --redo # Extract matlab files quick_adcp.py --steps2rerun matfiles --auto # Extract a netCDF file: adcp_nc.py adcpdb contour/wh300 FKt240708 wh300 --ship_name 'Falkor (too)' # Look at the headers: ncdump contour/wh300.nc -h