LAST CHANGED : 2024/07/26 20:50:02 CRUISE NAME(S) : I08S (tn430) CRUISE DATES : 2024/02/21 to 2024/04/01 SHIP NAME : Thomas Thompson PORTS : Fremantle, Australia to Port Elizabeth, South Africa CHIEF SCIENTIST : Bigorre, Sebastien DATABASE NAME : aship DATA FILES : tt2024_051_25596.raw to tt2024_091_14400.raw STATUS : to do done ------ ----------- averaged [ X ] loaded [ X ] 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 : os75 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 2024/02/21 07:11:37 off 300 60 16 5 8 59.90 0.00 0001 HEADING : PRIMARY : heading from gyro1 CORRECTION : heading correction from posmv5 NOTE: time-dependent heading corrections applied IN the ensembles (see cal/rotate/ens_hcorr.ang) POSITIONS : gps positions from seapath CALIBRATION : (check original processing parameters) (1) transducer alignment original transducer alignment: additional rotation 0.1 final transducer angle is: 59.8 (2) scale factor original scale factor 1 additional scale factor: 1.007 (3) ADCP (dx=starboard, dy=fwd) meters from GPS xducer_dx xducer_dy original: 1 -8 correction 0 0 final offset 1 -8 COMMENTS : The dataset was reprocessed using the seapath as the position instrument, the gyro as the reliable heading instrument, and the posmv as the accurate heading instrument. Bad data points were removed, then the uvship algorithm was applied. PROCESSOR : James Ash --- original processing parameters from dbinfo.txt ---------- ## (determined from "sonar"): model = os ## (determined from "sonar"): frequency = 75 ## (determined from "sonar"): instname = os75 ## (determined from "sonar"): pingtype = nb badbeam None beam_order None beamangle 30 configtype python cruisename TN430 datatype uhdas dbname aship ens_len 300 fixfile aship.gps hcorr_inst posmv5 pgmin 50 pingpref None proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source nav sonar os75nb txy_file aship.agt xducer_dx 1 xducer_dy -8 yearbase 2024 ================================================== 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 ### Run this: (to check watertrack calibration after patching hcorr) catwt.py catxy.py Number of edited points: 147 out of 149 amp = 1.0065 + -0.0002 (t - 75.5) phase = 0.05 + 0.0004 (t - 75.5) median mean std amplitude 1.0070 1.0065 0.0089 phase 0.0120 0.0540 0.3984 ---------------------------------------------------------------------- ### 2. ADCP calibration ---------------------------------------------------------------------- quick_adcp.py --steps2rerun rotate:navsteps:calib --rotate_amplitude 1.0065 --auto **watertrack** ------------ Number of edited points: 147 out of 149 amp = 1.0001 + -0.0002 (t - 75.5) phase = 0.05 + 0.0000 (t - 75.5) median mean std amplitude 1.0010 1.0001 0.0087 phase 0.0030 0.0517 0.3985 ------------ ---------------------------------------------------------------------- ### 3. Editing points ---------------------------------------------------------------------- ### Run this: (to go through the dataset and edit out bad values) dataviewer.py -e ### Run this: (to recompute the calibration residuals) quick_adcp.py --steps2rerun navsteps:calib --auto # I ran the uvship algorithm and recalculated the calibration coeficients. quick_adcp.py --steps2rerun navsteps:calib --refuv_source uvship --auto ---------------------------------------------------------------------- ### 5. Check edited, calibrated dataset against original dataset ---------------------------------------------------------------------- ### Run this: (Has this corrected the problems in the original?) dataviewer.py -c . ../os75nb.orig ### Run this to compare this sonar with another sonar (after both are finished) dataviewer.py -c ../os75nb.uvship . # Unfortunatly there is a slight difference between the os75 and wh300. # This may be related to the suggested dy calibration for the os75nb. ---------------------------------------------------------------------- ### 6. Make plots and files ---------------------------------------------------------------------- # Section off the datasets. quick_web.py --interactive ### Run this to extract matlab files quick_adcp.py --steps2rerun matfiles --auto ### Run this to extract a netCDF file adcp_nc.py adcpdb contour/os75nb TN430 os75nb --ship_name "Thomas Thompson" ### Run this to look at the headers ncdump -h contour/os75nb.nc #---------------------------------------------------------------------- ## (determined from "sonar"): model = os ## (determined from "sonar"): frequency = 75 ## (determined from "sonar"): instname = os75 ## (determined from "sonar"): pingtype = nb badbeam None beam_order None beamangle 30 configtype python cruisename TN430 datatype uhdas dbname aship ens_len 300 fixfile aship.gps hcorr_inst posmv5 pgmin 50 pingpref None proc_engine python ref_method refsm refuv_smoothwin 3 refuv_source uvship sonar os75nb txy_file aship.agt xducer_dx 1 xducer_dy -8 yearbase 2024