LAST CHANGED    : 2021/12/08 00:28:22
CRUISE NAME(S)  : km2118, hot334
CRUISE DATES    : 2021/12/02 to 2021/12/07
SHIP NAME       : Kilo Moana
PORTS           : Honolulu, HI to Honolulu, HI
CHIEF SCIENTIST : Karin Björkman
DATABASE NAME   : a_km
DATA FILES      : km2021_335_68882.raw to km2021_341_00000.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      : 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
                  2021/12/02 19:38:14  off  300 115  12   7 16  44.55   0.00 0001
                  2021/12/03 20:38:09  off  300 115  12   7 16  44.55   0.00 0001
                  2021/12/04 21:38:10  off  300 115  12   7 16  44.55   0.00 0001
                  2021/12/05 22:38:11  off  300 115  12   7 16  44.55   0.00 0001

HEADING         : 
     PRIMARY    : heading from gyro
     CORRECTION : heading correction from posmv
                        NOTE: time-dependent heading corrections
                        applied IN the ensembles
                        (see   cal/rotate/ens_hcorr.ang)

POSITIONS       : gps positions from posmv

CALIBRATION     : (check original processing parameters)
                  additional rotation -0.05
                  final transducer angle is:
                       (original transducer angle) - (rotate_angle)  44.55 - (-0.05) = 44.60
                  applied scale factor 1.0051
                  additional scale factor (none)

COMMENTS        : gaps in heading correction? 1 at beginning, ignoring it.
                  scattering layers? Not bad
                  bubbles? Lots, rough weather.
                  underway bias? Minimal
                  
PROCESSOR       : T. Rohrer


--- processing parameters ----------


## (determined from "sonar"): model = os
## (determined from "sonar"): frequency = 38
## (determined from "sonar"): instname = os38
## (determined from "sonar"): pingtype = bb
           beamangle   30
          cruisename   km2118
            datatype   uhdas
             ens_len   300
             fixfile   a_km.gps
           frequency   38
          hcorr_inst   posmv
            instname   os38
               model   os
            pingtype   bb
         proc_engine   python
          ref_method   refsm
     refuv_smoothwin   3
        refuv_source   nav
               sonar   os38bb
            txy_file   a_km.agt
           xducer_dx   16
           xducer_dy   6
            yearbase   2021


(unless otherwise stated, comments are relative
to root processing directory)

codaspy:(os38bb)$ 

===================================


(0) remake all the plots

quick_mplplots.py --plots2run all --yearbase 2021

(1) look at heading correction: are there gaps?

    figview.py cal/rotate/*png

[] There were no gaps!
[X] There WERE some gaps!

Did not run patch_hcorr.py

(2) see what calibration looks like:

                amp  in [0.995, 1.005] : good enough to proceed 
                                         to the next step.  tweak later
                phase in (-.5, .5) : good enough to proceed 
                                         to the next step.  tweak later

    rule of thumb: errors when underway:

         scale factor of 1.02 (i.e. 2%) gives 10cm/s alongtrack error
         phase error of 1deg gives 10cm crosstrack error 

         (goal is 1cm/s)

tail -20 cal/watertrk/adcpcal.out

Number of edited points:  16 out of  16
   amp   = 1.0051  + 0.0005 (t - 338.1)
   phase =  -0.05  + 0.1406 (t - 338.1)
            median     mean      std
amplitude   1.0070   1.0051   0.0086
phase      -0.0970  -0.0479   0.6261
nav - pc   -2.5000  -2.0000   2.9439
var         0.0010   0.0014   0.0013
min var     0.0010   0.0013   0.0012
delta-u    -1.6200  -1.1587   3.7599
delta-v    -0.6550  -1.2394   3.6050

quick_adcp.py --steps2rerun rotate:apply_edit:navsteps:calib --rotate_amplitude 1.0051 --rotate_angle -0.05 --auto

Number of edited points:  16 out of  16
   amp   = 1.0000  + 0.0005 (t - 338.1)
   phase =   0.00  + 0.1399 (t - 338.1)
            median     mean      std
amplitude   1.0015   1.0000   0.0085
phase      -0.0475   0.0040   0.6243
nav - pc   -1.5000  -1.7500   1.9494
var         0.0010   0.0014   0.0014
min var     0.0010   0.0013   0.0014
delta-u    -1.6200  -1.1587   3.7599
delta-v    -0.6550  -1.2394   3.6050


Continuing with editing, despite median/mean differences.


(3) gautoedit.py

Really good auto-editing.  Removed just a few below seafloor points. 


(4) apply editing

    quick_adcp.py --steps2rerun apply_edit:navsteps:calib --proc_engine python --datatype uhdas --auto

(5) rechecking calibration

tail -20 cal/watertrk/adcpcal.out

Number of edited points:  16 out of  16
   amp   = 1.0000  + 0.0005 (t - 338.1)
   phase =   0.00  + 0.1399 (t - 338.1)
            median     mean      std
amplitude   1.0015   1.0000   0.0085
phase      -0.0475   0.0040   0.6243
nav - pc   -1.5000  -1.7500   1.9494
var         0.0010   0.0014   0.0014
min var     0.0010   0.0013   0.0014
delta-u    -1.6200  -1.1587   3.7599
delta-v    -0.6550  -1.2394   3.6050

Takin' it. Mean looks perfect.


(6) web plots (make sure to save this file now):

Making web plots.


mkdir webpy
cp ../wh300/webpy/sectinfo.txt webpy/
quick_web.py --redo
cd ../
cat os38bb/cruise_info.txt dm_notes_os38bb.txt > os38bb.txt

ALL done