LAST CHANGED : 2024/04/02 11:43:07 CRUISE NAME(S) : FKt240224 CRUISE DATES : 2024/02/25 19:58:50 to 2024/04/02 11:42:44 SHIP NAME : Falkor (too) PORTS : Valparaiso, Chile to Antofagasta, Chile CHIEF SCIENTIST : Erin Easton DATABASE NAME : a_ftoo DATA FILES : ftoo2024_055_71627.raw to ftoo2024_092_36000.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 2024/02/25 19:58:50 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) x (1) transducer alignment x original transducer alignment: 0.21 x additional rotation = 0.2 x final transducer angle is: original - (correction) = 0.21 - (0.2) = 0.01 (2) scale factor original scale factor 1 additional scale factor (none) (3) ADCP (dx=starboard, dy=fwd) meters from GPS xducer_dx xducer_dy original: 1 -10 correction 0 0 final offset 1 -10 COMMENTS : No calibration was needed for this cruise. Overall fairly clean data set. PROCESSOR : James Ash -------------------------------------------- ### original 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 FKt240224 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 2024 ================================================== POST PROCESSING STEPS: ================================================== -------------------------------------------- ### 1. Check visual oddities -------------------------------------------- ### Run this: (to look for gaps in the cruise track) plot_nav.py nav/a*.gps ### To look for gaps in the heading correction. figview.py # At dday 76.8 there is a gap in the heading corrections. ### Run this: (looking for missing heading correction values or missing positions) dataviewer.py ### Run this: (to interpolate for missing heading correction fixes) cd cal/rotate patch_hcorr.py cd ../.. ### Run this: (to check watertrack calibration after patching hcorr) catwt.py catxy.py **transducer-gps offset** ----------- guessing ADCP (dx=starboard, dy=fwd) meters from GPS positions from a_ftoo.agt calculation done at 2024/04/02 11:43:06 xducer_dx = -3.916216 xducer_dy = -2.934150 signal = 2296.320563 ----------- **watertrack** ----------- Number of edited points: 46 out of 54 median mean std amplitude 1.0035 1.0025 0.0081 phase 0.1490 0.1922 0.5028 ----------- -------------------------------------------- ### 2. ADCP calibration -------------------------------------------- ### There is no need for a calibration. -------------------------------------------- ### 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 -------------------------------------------- ### 4. Check edited, calibrated dataset against original dataset -------------------------------------------- Final calibration for consistency with neighboring cruises: pushd FKt240224/os38nb AMP=1.005 ANG=0.0 quick_adcp.py --steps2rerun rotate:navsteps:calib --rotate_angle $ANG --rotate_amplitude $AMP --auto catwt **watertrack** ------------ Number of edited points: 43 out of 51 amp = 0.9981 + 0.0000 (t - 68.4) phase = 0.08 + -0.0035 (t - 68.4) median mean std amplitude 0.9990 0.9981 0.0077 phase -0.0110 0.0789 0.5337 ------------ ### Run this to compare this sonar with another sonar (after both are finished) dataviewer.py -c ../wh300_patch . # At 62.7 there's a strong current, possibly a surface eddy that appears in both the # os38 (only slightly). -------------------------------------------- ### 5. Make plots and files -------------------------------------------- ### To section off the cruise. quick_web.py --interactive ### Exctract the matlab files. quick_adcp.py --steps2rerun matfiles --auto ### Exctract netcdf data. adcp_nc.py adcpdb contour/os38nb FKt240224 os38nb --ship_name "Falkor too" ### Run this to look at the headers ncdump -h contour/os38nb.nc -------------------------------------------- ### 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 FKt240224 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 2024