#!/usr/bin/perl
#======================================================================
# L I S T B T
# doc: Sat Jan 18 18:41:49 2003
# dlm: Sun May 23 16:33:33 2010
# (c) 2003 A.M. Thurnherr
# uE-Info: 527 42 NIL 0 0 72 11 2 4 NIL ofnI
#======================================================================
# Extract Bottom-Track Data
# NOTE: NO SOUND-SPEED CORRECTION APPLIED YET!!!
# HISTORY:
# Jan 18, 2003: - created
# Jan 23, 2003: - added magnetic declination
# Jan 25, 2003: - continued construction
# Feb 11, 2003: - finally made it work
# Feb 12, 2003: - added default profile output
# Feb 13, 2003: - corrected raw output
# Feb 14, 2003: - added errors if instrument-BT filters are more strict
# than command-line values
# Feb 18, 2003: - removed -d dependency on -W
# Mar 3, 2003: - added -C)ompass correction
# Mar 10, 2003: - added -f)orce to allow visbeck-style post processing
# Mar 16, 2003: - added range comment
# Feb 26, 2004: - added Earth-coordinate support
# Feb 27, 2004: - made water-track calculation conditional (-E || -B)
# Mar 9, 2004: - added magnetic_declination to %PARAMs
# Apr 1, 2004: - added CTD u/v stats to %PARAMs
# Apr 2, 2004: - added CTD_msf (mean square fluctuation) stat
# Apr 3, 2004: - BUG: CTD vels were repeated for stats
# - removed non-ANTS option
# Nov 8, 2005: - UNIXTIME => UNIX_TIME
# - adapted to new binary read library
# - output editing statistics
# Aug 15, 2006: - added -b
# Aug 25, 2006: - fiddled
# Sep 19, 2007: - adapted to new [RDI_BB_Read.pl] (not tested)
# Nov 1, 2008: - BUG: sig(u) was reported instead of sig(v)
# Jul 30, 2009: - NaN => nan
# NOTES:
# - the RDI BT data contains ranges that are greater than the
# WT ping ranges. I don't know if those data are valid!
# - there is a fair bit of heuristic used, especially in the
# reference-layer calculation
# - depth-correction (-m) is highly recommended because it allows
# much better bad-BT detection and it is required for a valid
# comparison with LADCP profiles
# - the criterion for bottom-interference of the water-track data
# is derived from Firing's [merge.c] (adding 1.5 bin lengths to
# the calculated range), modified by taking the real beam angle
# into account.
# - from the RDI manuals it is not entirely clear whether the BT range
# is given in vertical or in along-beam meters; comparison with the
# WT range (calculated from the bin with the maximum echo amplitude)
# shows that vertical meters are used
# NOTES on quality checks:
# -a minimum BT amplitude; setting this to 50 (RDI default is 30)
# reduces the vertical range over which the bottom is detected but
# not the quality of the bottom track data; therefore, this should
# probably not be used.
# -c minimum BT correlation; the RDI default for this parameter is 220,
# which seems to work fine.
# -e max error velocity (BT & WT); this is primarily used for detecting
# good BT data, i.e. it should be set to a small value (Firing uses
# 0.1m/s in merge); if too small a value is chosen too many good
# data are discarded; note that the same error-velocity criterion
# is used to separate good from bad data when mean profiles are
# constructed.
# -w max difference between reference-layer w and BT w; this is a
# powerful criterion for determining good BT data; I like a value of
# 0.03 m/s.
# -d when the depth is corrected (-m) the...
$0 =~ m{(.*)/[^/]+};
require "$1/RDI_BB_Read.pl";
require "$1/RDI_Coords.pl";
require "$1/RDI_Utils.pl";
use Getopt::Std;
$USAGE = "$0 @ARGV";
die("Usage: $0 " .
"[use -b)ins <1st,last>] " .
"[write -R)aw data] [write -B)T data] " .
"[write -E)nsembles <pref>] [-F)ilter ensembles <script>] " .
"[-C)ompass correction <amp/phase/bias>] " .
"[-w) <max-diff|0.03>] [-a)mp <min|30>] [-e)rr-vel <max|0.05>] " .
"[-c)orrelation <min|220>] " .
"[-W)ater <depth> [allowed -d)epth-diff <maxdiff|20>]] " .
"[-f)orce (no setup tests)] " .
"[-M)agnetic <declination>] " .
"<RDI file>\n")
unless (&getopts("BC:E:F:M:RW:a:b:c:d:e:fw:") && @ARGV == 1);
print(STDERR "WARNING: magnetic declination not set!\n")
unless defined($opt_M);
$opt_c = 220 unless defined($opt_c); # defaults
$opt_a = 30 unless defined($opt_a);
$opt_e = 0.05 unless defined($opt_e);
$opt_w = 0.03 unless defined($opt_w);
$opt_d = 20 unless defined($opt_d);
if (defined($opt_C)) { # compass correction
($CC_amp,$CC_phase,$CC_bias) = split('/',$opt_C);
die("$0: can't decode -C$opt_C\n")
unless defined($CC_bias);
}
unless ($opt_f) { # check BT setup
readHeader($ARGV[0],\%dta);
die("$0: minimum instrument BT correlation ($dta{BT_MIN_CORRELATION}) " .
"too large for selected criterion (-c $opt_c) --- use -f to override\n")
if ($dta{BT_MIN_CORRELATION} > $opt_c);
die("$0: minimum instrument BT amplitude ($dta{BT_MIN_EVAL_AMPLITUDE}) " .
"too large for selected criterion (-a $opt_a) --- use -f to override\n")
if ($dta{BT_MIN_EVAL_AMPLITUDE} > $opt_a);
die("$0: maximum instrument BT error velocity ($dta{BT_MAX_ERROR_VELOCITY}) " .
"too small for selected criterion (-e $opt_e) --- use -f to override\n")
if ($dta{BT_MAX_ERROR_VELOCITY} < $opt_e);
}
require $opt_F if defined($opt_F); # load filter
print(STDERR "reading $ARGV[0]...");
readData($ARGV[0],\%dta); # read data
print(STDERR "done\n");
$dta{HEADING_BIAS} = -$opt_M; # magnetic declination
ensure_BT_RANGE(\%dta); # make sure they're there
$firstBin = $lastBin = '*'; # bins to use
($firstBin,$lastBin) = split(',',$opt_b)
if defined($opt_b);
$firstBin = 1 if ($firstBin eq '*');
$lastBin = $dta{N_BINS} if ($lastBin eq '*');
$firstBin--; $lastBin--;
die("$ARGV[0]: not enough bins for ref layer\n")
unless ($lastBin-$firstBin >= 6);
if ($dta{BEAM_COORDINATES}) { # coords used
$beamCoords = 1;
} elsif (!$dta{EARTH_COORDINATES}) {
die("$ARGV[0]: only beam and earth coordinates implemented so far\n");
}
#======================================================================
# Calculate reference-layer w
#======================================================================
sub w($)
{
my($ens) = @_;
my($i,$n,@v,$w);
for (my($b)=$firstBin; $b<=$lastBin; $b++) {
if ($beamCoords) {
next if ($dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][0] < 100 ||
$dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][1] < 100 ||
$dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][2] < 100 ||
$dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][3] < 100);
@v = velInstrumentToEarth(\%dta,$ens,
velBeamToInstrument(\%dta,
@{$dta{ENSEMBLE}[$ens]->{VELOCITY}[$b]}));
} else {
next if ($dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][0] > 0 ||
$dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][1] > 0 ||
$dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][2] > 0 ||
$dta{ENSEMBLE}[$ens]->{PERCENT_GOOD}[$b][3] < 100);
@v = velApplyHdgBias(\%dta,$ens,
@{$dta{ENSEMBLE}[$ens]->{VELOCITY}[$b]});
}
next unless (defined($v[3]) && abs($v[3]) <= $opt_e);
$w += $v[2]; $n++;
}
# printf(STDERR "$ens $n %.3f\n",$n>=1?$w/$n:-999);
return $n>=2 ? $w/$n : undef;
}
#======================================================================
# Dump raw BT data from one ensemble
#======================================================================
sub dumpRaw($)
{
my($e) = @_;
unless ($headerDone) {
print("#ANTS# [] $USAGE\n");
print("#ANTS#PARAMS# RDI_file{$ARGV[0]}\n");
print("#ANTS#FIELDS# {ens} {range1} {range2} {range3} {range4} " .
"{beamvel1} {beamvel2} {beamvel3} {beamvel4} {cor1} " .
"{cor2} {cor3} {cor4} {amp1} {amp2} {amp3} {amp4}\n");
$headerDone = 1;
}
printf("%d %f %f %f %f %f %f %f %f %d %d %d %d %d %d %d %d\n",
$dta{ENSEMBLE}[$e]->{NUMBER},
$dta{ENSEMBLE}[$e]->{BT_RANGE}[0],
$dta{ENSEMBLE}[$e]->{BT_RANGE}[1],
$dta{ENSEMBLE}[$e]->{BT_RANGE}[2],
$dta{ENSEMBLE}[$e]->{BT_RANGE}[3],
$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[0],
$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[1],
$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[2],
$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[3],
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[0],
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[1],
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[2],
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[3],
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[0],
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[1],
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[2],
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[3]
);
}
#======================================================================
# Dump processed BT data from one ensemble
#======================================================================
sub dumpBT($)
{
my($e) = @_;
unless ($headerDone) {
print("#ANTS# [] $USAGE\n");
printf("#ANTS#PARAMS# RDI_file{$ARGV[0]} bottom_time{%.1f}\n",
$dta{ENSEMBLE}[$maxz_e]->{ELAPSED});
print("#ANTS#FIELDS# {ens} {unix_time} {time} {depth} {BT_range} " .
"{WT_range} {u} {v} {w} {e} {w_ref} {corr} {amp}\n");
$headerDone = 1;
}
printf("%d %.2f %.2f %.1f %.1f %.1f %.4f %.4f %.4f %.4f %.4f %.1f %.1f\n",
$dta{ENSEMBLE}[$e]->{NUMBER},
$dta{ENSEMBLE}[$e]->{UNIX_TIME},
$dta{ENSEMBLE}[$e]->{ELAPSED},
$dta{ENSEMBLE}[$e]->{DEPTH},
$dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE},
$dta{ENSEMBLE}[$e]->{WT_MEAN_RANGE},
@{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}},
$dta{ENSEMBLE}[$e]->{W_REF},
$dta{ENSEMBLE}[$e]->{BT_MEAN_CORRELATION},
$dta{ENSEMBLE}[$e]->{BT_MEAN_EVAL_AMPLITUDE}
);
}
#======================================================================
# Dump a single ensemble with valid BT data to separate file
#======================================================================
sub dumpEns(@) # write profile
{
my($e) = @_;
my($b,$i);
open(P,">$opt_E.$e") || die("$opt_E.$e: $!\n");
print(P "#ANTS#PARAMS# " .
"depth{$dta{ENSEMBLE}[$e]->{DEPTH}} " .
"range{$dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE}} " .
"wt_range{$dta{ENSEMBLE}[$e]->{WT_MEAN_RANGE}} " .
"w_ref{$dta{ENSEMBLE}[$e]->{W_REF}} " .
"BT_u{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[0]} " .
"BT_v{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[1]} " .
"BT_w{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[2]} " .
"BT_e{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[3]} " .
"BT_cor1{$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[0]} " .
"BT_cor2{$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[1]} " .
"BT_cor3{$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[2]} " .
"BT_cor4{$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[3]} " .
"BT_amp1{$dta{ENSEMBLE}[$e]->{BT_AMPLITUDE}[0]} " .
"BT_amp2{$dta{ENSEMBLE}[$e]->{BT_AMPLITUDE}[1]} " .
"BT_amp3{$dta{ENSEMBLE}[$e]->{BT_AMPLITUDE}[2]} " .
"BT_amp4{$dta{ENSEMBLE}[$e]->{BT_AMPLITUDE}[3]} " .
"BTFWT_u{$dta{ENSEMBLE}[$e]->{BTFWT_VELOCITY}[0]} " .
"BTFWT_v{$dta{ENSEMBLE}[$e]->{BTFWT_VELOCITY}[1]} " .
"BTFWT_w{$dta{ENSEMBLE}[$e]->{BTFWT_VELOCITY}[2]} " .
"\n"
);
print(P "#ANTS#FIELDS# " .
"{depth} {hab} {u} {v} {w} {e} {cor1} {cor2} {cor3} {cor4} " .
"{amp1} {amp2} {amp3} {amp4} {pcg1} {pcg2} {pcg3} {pcg4}\n"
);
my($slc) = (1-cos(rad($dta{BEAM_ANGLE})))*$dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE}
+ 1.5*$dta{BIN_LENGTH}; # side-lobe contamination
for ($b=$firstBin; $b<=$lastBin; $b++) {
next unless (defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][0]) &&
defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][1]) &&
defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][2]) &&
defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][3]));
my($dz) = $dta{DISTANCE_TO_BIN1_CENTER} + $b*$dta{BIN_LENGTH};
last if ($dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE}-$dz <= $slc);
my(@v) = $beamCoords
? velInstrumentToEarth(\%dta,$e,
velBeamToInstrument(\%dta,
@{$dta{ENSEMBLE}[$e]->{VELOCITY}[$b]}))
: velApplyHdgBias(\%dta,$e,@{$dta{ENSEMBLE}[$e]->{VELOCITY}[$b]});
next unless defined($v[0]);
next if (abs($v[3]) > $opt_e ||
abs($v[2]-$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[2]) > 0.1);
$v[0] -= $dta{ENSEMBLE}[$e]->{BT_VELOCITY}[0];
$v[1] -= $dta{ENSEMBLE}[$e]->{BT_VELOCITY}[1];
my(@out) = (
$dta{ENSEMBLE}[$e]->{DEPTH}+$dz,
$dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE}-$dz,
$v[0],$v[1],$v[2],$v[3],
@{$dta{ENSEMBLE}[$e]->{CORRELATION}[$b]},
@{$dta{ENSEMBLE}[$e]->{ECHO_AMPLITUDE}[$b]},
@{$dta{ENSEMBLE}[$e]->{PERCENT_GOOD}[$b]}
);
for ($i=0; $i<17; $i++) { $out[$i] = nan unless defined($out[$i]); }
print(P "@out\n");
}
close(P);
}
#======================================================================
# Add Ensemble With Valid BT Data to Profile
#======================================================================
sub binEns($)
{
my($e) = @_;
my($slc) = (1-cos(rad($dta{BEAM_ANGLE})))*$dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE}
+ 1.5*$dta{BIN_LENGTH}; # side-lobe contamination
for (my($b)=$firstBin; $b<=$lastBin; $b++) {
next unless (defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][0]) &&
defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][1]) &&
defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][2]) &&
defined($dta{ENSEMBLE}[$e]->{VELOCITY}[$b][3]));
my($dz) = $dta{DISTANCE_TO_BIN1_CENTER} + $b*$dta{BIN_LENGTH};
last if ($dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE}-$dz <= $slc);
my(@v) = $beamCoords
? velInstrumentToEarth(\%dta,$e,
velBeamToInstrument(\%dta,
@{$dta{ENSEMBLE}[$e]->{VELOCITY}[$b]}))
: velApplyHdgBias(\%dta,$e,@{$dta{ENSEMBLE}[$e]->{VELOCITY}[$b]});
next unless defined($v[0]);
next if (abs($v[3]) > $opt_e ||
abs($v[2]-$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[2]) > 0.1);
$v[0] -= $dta{ENSEMBLE}[$e]->{BT_VELOCITY}[0];
$v[1] -= $dta{ENSEMBLE}[$e]->{BT_VELOCITY}[1];
my($bin) = int(($dta{ENSEMBLE}[$e]->{DEPTH}+$dz) / $dta{BIN_LENGTH});
$minBin = $bin unless ($bin >= $minBin);
$maxBin = $bin unless ($bin <= $maxBin);
if (defined($BTn[$bin])) {
my($f1) = $BTn[$bin] / ($BTn[$bin]+1);
my($f2) = ($BTn[$bin]-1) / $BTn[$bin];
$BTsigu[$bin] =
$f2*$BTsigu[$bin] + $f1*($v[0]-$BTu[$bin])**2/$BTn[$bin];
$BTsigv[$bin] =
$f2*$BTsigv[$bin] + $f1*($v[1]-$BTv[$bin])**2/$BTn[$bin];
$BTn[$bin]++;
$BTu[$bin] = $f1*$BTu[$bin] + $v[0]/$BTn[$bin];
$BTv[$bin] = $f1*$BTv[$bin] + $v[1]/$BTn[$bin];
} else {
$BTu[$bin] = $v[0];
$BTv[$bin] = $v[1];
$BTn[$bin] = 1;
}
}
}
#======================================================================
# Output Bottom-Referenced Profile
#======================================================================
sub dumpProf($$$)
{
my($db,$wd,$md) = @_;
my(@sum,@mean);
for (my($i)=0; $i<=$#listCTDu; $i++) { # CTD vel mean
$sum[0] += $listCTDu[$i];
$sum[1] += $listCTDv[$i];
}
@mean = ($sum[0]/@listCTDu,$sum[1]/@listCTDv);
@sum = (0,0); # stddev
for (my($i)=0; $i<=$#listCTDu; $i++) {
$sum[0] += ($listCTDu[$i]-$mean[0])**2;
$sum[1] += ($listCTDv[$i]-$mean[1])**2;
}
@sigma = ($sum[0]/sqrt($#listCTDu),$sum[1]/sqrt($#listCTDv));
@sum = (0,0); # mean speed fluct
for (my($i)=1; $i<=$#listCTDu; $i++) { # also: list for median
push(@cfluc,sqrt(($listCTDu[$i]-$listCTDu[$i-1])**2 +
($listCTDv[$i]-$listCTDv[$i-1])**2));
$sum[0] += $cfluc[$#cfluc];
}
printf("#ANTS#PARAMS# LADCP_depth_bias{%.1f} water_depth{%.1f} magnetic_declination{%.1f}\n",
$db,$wd,$md);
printf("#ANTS#PARAMS# CTD_u{%.3f} CTD_v{%.3f} CTD_sig_u{%.3f} CTD_sig_v{%.3f} CTD_mean_cfluc{%.4f} CTD_median_cfluc{%.4f}\n",
@mean,@sigma,$sum[0]/$#listCTDu,(sort{$a<=>$b}@cfluc)[@cfluc/2]);
printf("#ANTS#PARAMS# good_ens{$good}\n");
print("#ANTS#FIELDS# {depth} {u} {v} {sig_u} {sig_v} {n_data}\n");
for (my($bin)=$minBin; $bin<=$maxBin; $bin++) {
next unless defined($BTu[$bin]);
printf("%d %.3f %.3f %.3f %.3f %d\n",
($bin+0.5)*$dta{BIN_LENGTH},
$BTu[$bin],$BTv[$bin],
sqrt($BTsigu[$bin]),sqrt($BTsigv[$bin]),
$BTn[$bin]);
}
}
#======================================================================
# STEP 1: Calculate Depth (integrate w)
#======================================================================
for ($e=0; $e<=$#{$dta{ENSEMBLE}}; $e++) {
checkEnsemble(\%dta,$e);
$dta{ENSEMBLE}[$e]->{W_REF} = w($e);
next unless (defined($start_e) ||
defined($dta{ENSEMBLE}[$e]->{W_REF}));
$start_e = $e unless defined($start_e);
$end_e = $e if defined($dta{ENSEMBLE}[$e]->{W_REF});
$lasttime = $curtime;
$curtime = $dta{ENSEMBLE}[$e]->{UNIX_TIME};
$dta{ENSEMBLE}[$e]->{ELAPSED} =
$curtime - $dta{ENSEMBLE}[$start_e]->{UNIX_TIME};
filterEnsemble(\%dta,$e)
if (defined($opt_F) &&
$dta{ENSEMBLE}[$e]->{PERCENT_GOOD}[0][3] > 0);
$z += $dta{ENSEMBLE}[$e]->{W_REF} *
(defined($lasttime) ? ($curtime - $lasttime) : 0);
$maxz_e=$e,$maxz = $z unless ($z < $maxz);
$dta{ENSEMBLE}[$e]->{DEPTH} = $z;
}
unless ($opt_R) {
($w_depth,$swd) = find_seabed(\%dta,$maxz_e,$beamCoords);
die("$0: can't determine water depth (sigma = $swd)\n")
unless (defined($w_depth) && $swd < 10);
if (defined($opt_W)) { # adjust depth
$zbias = $w_depth - $opt_W; $w_depth = $opt_W;
for ($e=$start_e; $e<=$end_e; $e++) {
$dta{ENSEMBLE}[$e]->{DEPTH} -= $zbias;
}
}
}
# print(STDERR "maxz = $maxz, w_depth = $w_depth\n");
#======================================================================
# STEP 2: Process BT Data
#======================================================================
for ($e=$start_e; $e<=$end_e; $e++) {
next unless ($dta{ENSEMBLE}[$e]->{BT_RANGE}[0] && # BT data available
$dta{ENSEMBLE}[$e]->{BT_RANGE}[1] &&
$dta{ENSEMBLE}[$e]->{BT_RANGE}[2] &&
$dta{ENSEMBLE}[$e]->{BT_RANGE}[3]);
# die("$0: don't know what to do with non-zero %-good and " .
# "signal-strength values at ensemble " .
# "#$dta{ENSEMBLE}[$e]->{NUMBER}\n")
# if ($dta{ENSEMBLE}[$e]->{BT_PERCENT_GOOD}[0] ||
# $dta{ENSEMBLE}[$e]->{BT_PERCENT_GOOD}[1] ||
# $dta{ENSEMBLE}[$e]->{BT_PERCENT_GOOD}[2] ||
# $dta{ENSEMBLE}[$e]->{BT_PERCENT_GOOD}[3] ||
# $dta{ENSEMBLE}[$e]->{BT_SIGNAL_STRENGHT}[0] ||
# $dta{ENSEMBLE}[$e]->{BT_SIGNAL_STRENGHT}[1] ||
# $dta{ENSEMBLE}[$e]->{BT_SIGNAL_STRENGHT}[2] ||
# $dta{ENSEMBLE}[$e]->{BT_SIGNAL_STRENGHT}[3]);
if ($opt_R) { # dump raw data
dumpRaw($e);
next;
}
$dta{ENSEMBLE}[$e]->{HEADING} -= # compass correction
$CC_amp * sin(rad($dta{ENSEMBLE}[$e]->{HEADING} - $CC_phase))
+ $CC_bias
if defined($opt_C);
@{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}} = $beamCoords # xform BT vel
? velInstrumentToEarth(\%dta,$e,
velBeamToInstrument(\%dta,@{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}}))
: velApplyHdgBias(\%dta,$e,@{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}});
$dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE} = # mean vals
$dta{ENSEMBLE}[$e]->{BT_RANGE}[0]/4 +
$dta{ENSEMBLE}[$e]->{BT_RANGE}[1]/4 +
$dta{ENSEMBLE}[$e]->{BT_RANGE}[2]/4 +
$dta{ENSEMBLE}[$e]->{BT_RANGE}[3]/4;
$dta{ENSEMBLE}[$e]->{BT_MEAN_CORRELATION} =
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[0]/4 +
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[1]/4 +
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[2]/4 +
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[3]/4;
$dta{ENSEMBLE}[$e]->{BT_MEAN_EVAL_AMPLITUDE} =
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[0]/4 +
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[1]/4 +
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[2]/4 +
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[3]/4;
# next # could add this
# if ($dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE} < 50);
$bad_amp++,next
if ($dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[0] < $opt_a ||
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[1] < $opt_a ||
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[2] < $opt_a ||
$dta{ENSEMBLE}[$e]->{BT_EVAL_AMPLITUDE}[3] < $opt_a);
$bad_corr++,next
if ($dta{ENSEMBLE}[$e]->{BT_CORRELATION}[0] < $opt_c ||
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[1] < $opt_c ||
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[2] < $opt_c ||
$dta{ENSEMBLE}[$e]->{BT_CORRELATION}[3] < $opt_c);
$bad_w_ref++,next # quality checks
if (abs($dta{ENSEMBLE}[$e]->{BT_VELOCITY}[2] -
$dta{ENSEMBLE}[$e]->{W_REF}) > $opt_w);
$bad_e_vel++,next
if (abs($dta{ENSEMBLE}[$e]->{BT_VELOCITY}[3]) > $opt_e);
$bad_depth++,next
if (abs($dta{ENSEMBLE}[$e]->{BT_MEAN_RANGE} +
$dta{ENSEMBLE}[$e]->{DEPTH} - $w_depth) > $opt_d);
$good++;
push(@listCTDu,-$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[0]);
push(@listCTDv,-$dta{ENSEMBLE}[$e]->{BT_VELOCITY}[1]);
if ($opt_E || $opt_B) {
my(@maxamp) = (0,0,0,0); # water-track range
my(@btm_e) = (0,0,0,0);
for ($b=$firstBin; $b<=$lastBin; $b++) {
for ($i=0; $i<4; $i++) {
if ($dta{ENSEMBLE}[$e]->{ECHO_AMPLITUDE}[$b][$i] > $maxamp[$i]) {
$dta{ENSEMBLE}[$e]->{WT_RANGE}[$i] = $b;
$maxamp[$i] = $dta{ENSEMBLE}[$e]->{ECHO_AMPLITUDE}[$b][$i];
$btm_e[$i] = $e;
}
}
}
for ($i=0; $i<4; $i++) {
$dta{ENSEMBLE}[$e]->{WT_RANGE}[$i] *= $dta{BIN_LENGTH};
$dta{ENSEMBLE}[$e]->{WT_RANGE}[$i] += $dta{DISTANCE_TO_BIN1_CENTER};
}
$dta{ENSEMBLE}[$e]->{WT_MEAN_RANGE} =
$dta{ENSEMBLE}[$e]->{WT_RANGE}[0]/4 +
$dta{ENSEMBLE}[$e]->{WT_RANGE}[1]/4 +
$dta{ENSEMBLE}[$e]->{WT_RANGE}[2]/4 +
$dta{ENSEMBLE}[$e]->{WT_RANGE}[3]/4;
my($btm_e) = int($btm_e[0]/4+$btm_e[1]/4+$btm_e[2]/4+$btm_e[3]/4+0.5);
@{$dta{ENSEMBLE}[$btm_e]->{BTFWT_VELOCITY}} = $beamCoords # BT from WT
? velInstrumentToEarth(\%dta,$e,
velBeamToInstrument(\%dta,@{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}}))
: velApplyHdgBias(\%dta,$e,@{$dta{ENSEMBLE}[$e]->{BT_VELOCITY}});
}
dumpEns($e) if defined($opt_E); # output BT profiles
if ($opt_B) { dumpBT($e); }
else { binEns($e); }
}
filterEnsembleStats() if defined($opt_F);
exit(0) if ($opt_R);
printf(STDERR "%5d BT records removed due to bad w\n",$bad_w_ref)
if defined($bad_w_ref);
printf(STDERR "%5d BT records removed due to bad err vel\n",$bad_e_vel)
if defined($bad_e_vel);
printf(STDERR "%5d BT records removed due to bad echo amplitude\n",$bad_amp)
if defined($bad_amp);
printf(STDERR "%5d BT records removed due to bad correlation\n",$bad_corr)
if defined($bad_corr);
printf(STDERR "%5d BT records removed due to bad depth\n",$bad_depth)
if defined($bad_depth);
die("$0: no good BT data\n") unless ($good);
printf(STDERR "\n%5d BT records remaining\n",$good);
dumpProf($zbias,$w_depth,-$dta{HEADING_BIAS})
unless ($opt_B);
exit(0);