def test_codar_radial_to_gridded_netcdf():
radial_file = data_path / "radials" / "ruv" / "SEAB" / "RDLi_SEAB_2019_01_01_0000.ruv"
nc_file = output_path / "radials" / "nc" / "gridded" / "SEAB" / "RDLi_SEAB_2019_01_01_0000.nc"
# Converts the underlying .data (natively a pandas DataFrame)
# to an xarray object when `create_netcdf` is called.
# This automatically 'enhances' the netCDF file
# with better variable names and attributes.
rad1 = Radial(radial_file)
rad1.to_netcdf(str(nc_file), model="gridded")
# Convert it to an xarray Dataset with no variable
# or attribte enhancements
xds2 = rad1.to_xarray("gridded", enhance=False)
# Convert it to xarray Dataset with increased usability
# by changing variables names, adding attributes,
# and decoding the CF standards like scale_factor
xds3 = rad1.to_xarray("gridded", enhance=True)
with xr.open_dataset(nc_file) as xds1:
# The two enhanced files should be identical
assert xds1.identical(xds3)
# Enhanced and non-enhanced files should not
# be equal
assert not xds1.identical(xds2)
def test_miami_radial_tabular_nc():
radial_file = data_path / "radials" / "ruv" / "WERA" / "RDL_UMiami_STF_2019_06_01_0000.hfrweralluv1.0"
nc_file = output_path / "radials" / "nc" / "tabular" / "WERA" / "RDL_UMiami_STF_2019_06_01_0000.nc"
# Converts the underlying .data (natively a pandas DataFrame)
# to an xarray object when `create_netcdf` is called.
# This automatically 'enhances' the netCDF file
# with better variable names and attributes.
rad1 = Radial(radial_file)
rad1.to_netcdf(str(nc_file), model="tabular")
# rad1.export(str(nc_file), file_type='netcdf', model='tabular')
# Convert it to an xarray Dataset with no variable
# or attribte enhancements
xds2 = rad1.to_xarray("tabular", enhance=False)
# xds2 = rad1.to_xarray_tabular(enhance=False)
# Convert it to xarray Dataset with increased usability
# by changing variables names, adding attributes,
# and decoding the CF standards like scale_factor
xds3 = rad1.to_xarray("tabular", enhance=True)
# xds3 = rad1.to_xarray_tabular(enhance=True)
with xr.open_dataset(nc_file) as xds1:
# The two enhanced files should be identical
assert xds1.identical(xds3)
# Enhanced and non-enhanced files should not
# be equal
assert not xds1.identical(xds2)
def test_codar_mask():
radial_file = data_path / "radials" / "ruv" / "SEAB" / "RDLi_SEAB_2019_01_01_0000.ruv"
rad1 = Radial(radial_file, replace_invalid=False)
# Total points before masking
assert len(rad1.data) == 745
rad1.mask_over_land(subset=True)
# Make sure we subset the land points
assert len(rad1.data) == 592
def test_wera_mask():
radial_file = data_path / "radials" / "ruv" / "WERA" / "RDL_csw_2019_10_24_162300.ruv"
rad1 = Radial(radial_file, mask_over_land=False, replace_invalid=False)
# Total points before masking
assert len(rad1.data) == 6327
rad1.mask_over_land(subset=True)
# Make sure we subset the land points
assert len(rad1.data) == 5745
def read_lluv_file(ifn):
"""Reads LLUV file using HFRadarPy toolbox"""
if os.path.exists(ifn):
r = Radial(ifn)
else:
print('File does not exist: ' + ifn)
raise IOError('Error opening %s' % ifn)
return r
def fix_empty_radial(r, table_type='LLUV RDL9'):
"""Fixes an empty radial (r) Radial object that be can be written out using
r.to_ruv() to avoid an error when there is missing table information.
return r (Radial object) for writing out empty LLUV files.
Parameters
----------
r : Radial object read from LLUVMerger empty radial file
table_type = 'LLUV RDL9' ensures correct file format used as template
Returns
-------
r: Radial object, fixed by using re._tables[1]
"""
if table_type == 'LLUV RDL9':
formatfile = Path(__file__).parent.resolve(
) / 'file_formats' / 'radial_LLUV_RDL9.ruv'
# formatfile = './test_empty_Radials_qcd/RDLi_HATY_2020_10_08_2000.ruv'
re = Radial(formatfile, empty_radial=True)
else:
print('fix_empty_radial() : Unrecognized table_type "%s"' %
(table_type, ))
return r
## it would be easy if we knew for sure they would always be key==1 for both
## r._tables[1] = re._tables[1]
## r.data = re._tables[1]['data']
# all this to make sure index to r._tables and re._tables are getting 'LLUV' tables from both,
# in case they are different keys
# get all the table types
r_tts = [
r._tables[key]['TableType'].split(' ')[0] for key in r._tables.keys()
]
re_tts = [
re._tables[key]['TableType'].split(' ')[0]
for key in re._tables.keys()
]
# get list of keys -- r._tables is OrderedDict() and odict_keys are not subscriptable
# so generate a list of keys
r_keys = [key for key in r._tables.keys()]
re_keys = [key for key in re._tables.keys()]
idx = r_tts.index('LLUV')
r_key = r_keys[idx]
idx = re_tts.index('LLUV')
re_key = re_keys[idx]
# copy correctly formatted empty data table from re (Radial object) to r (Radial object)
r._tables[r_key] = re._tables[re_key]
r.data = re._tables[re_key]['data']
return r
def setUp(self):
self.file_paths = list(
(data_path / "radials" / "ruv" / "SEAB").glob("*.ruv"))
self.radial_files = [str(r) for r in self.file_paths]
self.radial_objects = [Radial(str(r)) for r in self.radial_files]
# Select even indexed file_paths and odd indexed radial objects
# into one array of mixed content types for concating
self.radial_mixed = self.radial_files[::2] + self.radial_objects[
1:][::2]
def test_wera_raw_to_quality_tabular_nc():
radial_file = data_path / "radials" / "ruv" / "WERA" / "RDL_csw_2019_10_24_162300.ruv"
nc_file = output_path / "radials" / "qc" / "nc" / "tabular" / "WERA" / "RDL_csw_2019_10_24_162300.nc"
rad1 = Radial(radial_file, replace_invalid=False)
rad1.initialize_qc()
# rad1.mask_over_land()
rad1.qc_qartod_radial_count()
rad1.qc_qartod_valid_location()
rad1.qc_qartod_maximum_velocity()
rad1.qc_qartod_spatial_median()
rad1.to_netcdf(str(nc_file), model="tabular")
xds2 = rad1.to_xarray("tabular", enhance=True)
with xr.open_dataset(nc_file) as xds1:
assert len(xds1.QCTest) == 3 # no VFLG column so one test not run
# The two enhanced files should be identical
assert xds1.identical(xds2)
def main(radial_file, save_dir, types=['tabular']):
"""
Main function to parse and qc radial files
:param radial_file: Path to radial file
:param save_path: Path to save quality controlled radial file
"""
save_dir = Path(save_dir)
try:
r = Radial(radial_file)
except Exception:
return
if r.is_valid():
sname = save_dir / r.file_name
try:
for t in types:
r.export(sname, 'netcdf-{}'.format(t), prepend_ext=True)
except ValueError:
pass
def test_wera_qc():
radial_file = data_path / "radials" / "ruv" / "WERA" / "RDL_csw_2019_10_24_162300.ruv"
rad1 = Radial(radial_file, replace_invalid=False)
rad1.initialize_qc()
# assert len(rad1.data) == 6327
# rad1.mask_over_land(subset=True)
rad1.qc_qartod_radial_count()
rad1.qc_qartod_valid_location()
rad1.qc_qartod_maximum_velocity()
rad1.qc_qartod_spatial_median()
rad1.qc_qartod_avg_radial_bearing(reference_bearing=180)
rad1.qc_qartod_primary_flag()
# assert len(rad1.data) == 5745
assert "QC07" in rad1.data
assert "QC08" not in rad1.data # no VFLG column so we can't run it
assert "QC09" in rad1.data
assert "QC10" in rad1.data
# assert 'QC11' in rad1.data # temporal gradient test
assert "QC12" in rad1.data
assert "PRIM" in rad1.data
def test_codar_qc():
radial_file = data_path / "radials" / "ruv" / "SEAB" / "RDLi_SEAB_2019_01_01_0100.ruv"
radial_file_previous = data_path / "radials" / "ruv" / "SEAB" / "RDLi_SEAB_2019_01_01_0000.ruv"
rad1 = Radial(radial_file, replace_invalid=False)
rad1.initialize_qc()
# assert len(rad1.data) == 733
# rad1.mask_over_land(subset=True)
rad1.qc_qartod_radial_count()
rad1.qc_qartod_valid_location()
rad1.qc_qartod_maximum_velocity()
rad1.qc_qartod_spatial_median()
rad1.qc_qartod_temporal_gradient(radial_file_previous)
rad1.qc_qartod_avg_radial_bearing(reference_bearing=180)
rad1.qc_qartod_primary_flag()
# assert len(rad1.data) == 587
assert "QC07" in rad1.data
assert "QC08" in rad1.data
assert "QC09" in rad1.data
assert "QC10" in rad1.data
assert "QC11" in rad1.data # temporal gradient test
assert "QC12" in rad1.data
assert "PRIM" in rad1.data
def generate_radialshort(r,
table_type='LLUV RDL7',
numdegrees=3,
weight_parameter='MP'):
"""Generates radialshort (rsd) data array.
This function generates radialshort data (rsd) array based on data
from weighted average data (xd). It is the output CSV data table
(middle) of CODAR LLUV format with header, middle, and footer.
If xd is empty, return empty rsd for writing out empty LLUV files.
Each LATD, LOND is computed using Vincenty's algorithm for
destination along a BEAR (NCW) and a distance of RNGE (km) from
point of origin (lat1,lon1). Vincenty's GC is great circle
distance on an WGS-84 ellipsoid model between two points. This
requires having the CODAR Site location, and range resolution from
the header data or config data.
Parameters
----------
xd : ndarray
QC'd and weighted average radials for each range, bearing where data were found
table_type : string
Returns
-------
rs: Radial object
"""
from qccodar.qcutils import weighted_velocities
if table_type == 'LLUV RDL7':
formatfile = Path(__file__).parent.resolve(
) / 'file_formats' / 'radialshort_LLUV_RDL7.ruv'
rs = Radial(formatfile, empty_radial=True)
else:
print('generate_radialshort() : Unrecognized table_type "%s"' %
(table_type, ))
return numpy.array([]), ''
# copy over the file information, header, name, tables
rs.metadata = r.metadata
# '% PatternMethod: 1 PatternVectors' should be added but I'm not sure how to
# insert at a specific position in Ordered dictionary
if hasattr(r, 'diagnostics_radial'):
rs.diagnostics_radial = r.diagnostics_radial
if hasattr(r, 'diagnostics_hardware'):
rs.diagnostics_hardware = r.diagnostics_hardware
# the range information table changes in the processing from radial metric to radial short
# but I have simply copied over the metric version for now
if hasattr(r, 'range_information'):
rs.range_information = r.range_information
# remove table in rs that is not in r
r_tts = [
r._tables[key]['TableType'].split(' ')[0] for key in r._tables.keys()
]
rs_tts = [
rs._tables[key]['TableType'].split(' ')[0]
for key in rs._tables.keys()
]
rs_keys = [key for key in rs._tables.keys()]
to_be_removed = [tt for tt in rs_tts if tt not in r_tts]
for tt in to_be_removed:
idx = rs_tts.index(tt)
rs._tables.pop(rs_keys[idx])
for key in rs._tables.keys():
table = rs._tables[key]
if 'LLUV' in table['TableType']:
rs._tables[key]['data'] = rs.data
rs._tables[key]['TableRows'] = str(rs.data.shape[0])
elif 'rads' in table['TableType']:
rs._tables[key]['data'] = rs.diagnostics_radial
rs._tables[key]['TableRows'] = str(rs.diagnostics_radial.shape[0])
elif 'rcvr' in table['TableType']:
rs._tables[key]['data'] = rs.diagnostics_hardware
rs._tables[key]['TableRows'] = str(
rs.diagnostics_hardware.shape[0])
elif 'RINF' in table['TableType']:
rs._tables[key]['data'] = rs.range_information
rs._tables[key]['TableRows'] = str(rs.range_information.shape[0])
#rs.file_path = r.file_path
fn = r.file_name.replace('RDLv', 'RDLx')
fn = fn.replace('RDLw', 'RDLy')
rs.file_name = fn
#rs.full_file = r.full_file
rs.is_wera = False
rs._iscorrupt = False
rs.time = datetime.datetime(
*[int(s) for s in r.metadata['TimeStamp'].split()])
origin = r.metadata['Origin']
lat1, lon1 = [float(x) for x in origin.split()]
range_resolution = float(r.metadata['RangeResolutionKMeters'])
if r.data.size == 0:
return rs
xd = weighted_velocities(r, numdegrees, weight_parameter)
if xd.size == 0:
return rs
for key in rs._tables.keys():
table = rs._tables[key]
if 'LLUV' in table['TableType']:
rs._tables[key]['TableRows'] = str(xd.shape[0])
rs.data['VFLG'] = xd['VFLG']
rs.data['SPRC'] = xd['SPRC']
rs.data['BEAR'] = xd['BEAR']
rs.data['VELO'] = xd['VELO']
rs.data['ESPC'] = xd['ESPC']
rs.data['MAXV'] = xd['MAXV']
rs.data['MINV'] = xd['MINV']
rs.data['EDVC'] = xd['EDVC']
rs.data['ERSC'] = xd['ERSC']
############################
# computations for filling in other columns of radialshort data
############################
# create HEAD column based on BEAR+180
rs.data['HEAD'] = numpy.mod(rs.data['BEAR'] + 180., 360.)
# compute velocity components
(rs.data['VELU'], rs.data['VELV']) = compass2uv(rs.data['VELO'],
rs.data['HEAD'])
rs.data['RNGE'] = range_resolution * rs.data['SPRC']
#
# Vincenty Great Circle destination point (LATD, LOND) based on rnge, bear from site origin
origin = geopy.Point(lat1, lon1)
pts = numpy.array([
geopy.distance.geodesic(kilometers=r).destination(origin, b)[0:2]
for (r, b) in zip(rs.data['RNGE'], rs.data['BEAR'])
])
rs.data['LATD'], rs.data['LOND'] = pts[:, 0], pts[:, 1]
(rs.data['XDST'], rs.data['YDST']) = compass2uv(rs.data['RNGE'],
rs.data['BEAR'])
return rs
def plot_ruv(radial_file,
save_path=None,
fname=None,
speed_display='color',
redblue=True,
plotflag=None,
scale=50,
vlims=(-100, 100)):
"""
Main function to plot radial files.
Args:
radial_file (str or Path): Path to radial file or a Radial object
save_path (str or Path): Path to save figures
fname (str): Output file name. If not specified, the radial object filename is used, Defaults to None
speed_display (str, optional): 'color' or 'arrowlength' to specify whether current speed is depicted by color or arrow length, Defaults to color
redblue (bool, optional): If True, colorbar scheme is redblue, Defaults to True
plotflag (str, optional): QARTOD QC test code, fail and suspect flags for that test will be highlighted, Defaults to None
scale (int, optional): Scaling factor for drawing the vectors, Default = 50
vlims (tuple, optional): Velocity limits for the colorbar, Default = (-100,100)
"""
if not isinstance(radial_file, Radial):
r = Radial(radial_file)
else:
r = radial_file
if not r.is_valid():
return
if r._iscorrupt:
return
if fname == None:
fname = r.file_name[0:-4]
# Adjust some standard plotting settings to make them the size of a sheet of paper
fig_size = plt.rcParams["figure.figsize"]
fig_size[0] = 12
fig_size[1] = 8
plt.rcParams["figure.figsize"] = fig_size
# Set colors of the land.
edgecolor = 'black'
landcolor = 'tan'
LAND = cfeature.NaturalEarthFeature('physical',
'land',
'10m',
edgecolor='face',
facecolor='tan')
state_lines = cfeature.NaturalEarthFeature(
category='cultural',
name='admin_1_states_provinces_lines',
scale='50m',
facecolor='none')
bf = 0.3 #degrees
extent = [
r.data.LOND.min() - bf,
r.data.LOND.max() + bf,
r.data.LATD.min() - bf,
r.data.LATD.max() + bf
]
# Split out everything into seperate variables in order to pass them easier to the plotting functions
time = r.time
lon = r.data.LOND.to_numpy()
lat = r.data.LATD.to_numpy()
u = r.data.VELU.to_numpy()
v = r.data.VELV.to_numpy()
velocity = r.data.VELO.to_numpy()
sitename = r.metadata['Site'][0:4]
ptype = r.metadata['PatternType']
# Mask nans just in case there are any
u = ma.masked_invalid(u)
v = ma.masked_invalid(v)
# convert U and V component velocities to angle and speed
angle, speed = uv2spdir(u, v)
# convert angle and speed right back back to U and V component velocities,
# Passing speed as an array of 1's allows for the normalizing of the arrow sizes
# if we pass the correct
u, v = spdir2uv(np.ones_like(speed), angle, deg=True)
# Get the receiver location
receiver_location = [float(x) for x in r.metadata['Origin'].split(' ')]
receiver_location.reverse()
# Intialize an empty subplot using cartopy
fig, ax = plt.subplots(figsize=(11, 8),
subplot_kw=dict(projection=ccrs.Mercator()))
#plt.quiver(lon, lat, u, v, transform=ccrs.PlateCarree())
plt.plot(receiver_location[0],
receiver_location[1],
'o',
markersize=10,
markeredgecolor='black',
color='red',
transform=ccrs.PlateCarree())
map_features(ax, extent, LAND, edgecolor, landcolor, state_lines)
# The next lines specify the arrow shapes. You can customize this to your preference, usually by trial and error.
# scale = 50
headwidth = 2.5
headlength = 4
headaxislength = 4
sub = 1
# if user requested speed displayed as arrow length
if speed_display == 'arrowlength':
scale_units = 'width'
width = 0.005
if not plotflag == None:
fail = r.data[plotflag] == 4
suspect = r.data[plotflag] == 3
noteval = r.data[plotflag] == 2
away = r.data.VELO > 0
plt.quiver(lon,
lat,
u,
v,
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='lightpink')
plt.quiver(lon[away],
lat[away],
u[away],
v[away],
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='lightblue')
#plt.quiver(lon, lat, u, v, transform=ccrs.PlateCarree(), scale=scale, color='white')
plt.quiver(lon[fail],
lat[fail],
u[fail],
v[fail],
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='red')
plt.quiver(lon[suspect],
lat[suspect],
u[suspect],
v[suspect],
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='gold')
plt.quiver(lon[noteval],
lat[noteval],
u[noteval],
v[noteval],
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='gray')
plt.title(
f'{sitename} {ptype} {plotflag}\nFail(red) Suspect(yellow) Not Evaluated(grey)\n{time}'
)
plt.savefig(save_path + '/' + fname + '_' + plotflag)
plt.close('all')
elif redblue:
away = r.data.VELO > 0
plt.quiver(lon,
lat,
u,
v,
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='red')
plt.quiver(lon[away],
lat[away],
u[away],
v[away],
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='blue')
plt.title(f'{sitename} {ptype}\n{time}')
plt.savefig(save_path + '/' + fname + '_rb')
plt.close('all')
else:
plt.quiver(lon,
lat,
u,
v,
transform=ccrs.PlateCarree(),
scale=scale,
scale_units=scale_units,
width=width,
color='wheat')
plt.title(f'{sitename} {ptype}\n{time}')
plt.savefig(save_path + '/' + fname)
plt.close('all')
# if user requested speed displayed as color
else:
if not plotflag == None:
test = r.data[plotflag]
velocity[np.where(test >= 0)] = 1
velocity[np.where(test == 4)] = -1
color_clipped = np.clip(r.data.VELO[::sub], -1, 1).squeeze()
offset = TwoSlopeNorm(vmin=-1, vcenter=0, vmax=1)
cmap = colors.ListedColormap(['red', 'wheat'])
plt.title(f'{sitename} {ptype} {plotflag} Fail\n{time}')
qargs = dict(cmap=cmap,
scale=scale,
headwidth=headwidth,
headlength=headlength,
headaxislength=headaxislength)
qargs['transform'] = ccrs.PlateCarree()
qargs['norm'] = offset
# plot arrows over pcolor
h = ax.quiver(lon[::sub], lat[::sub], u[::sub], v[::sub],
color_clipped, **qargs)
plt.savefig(save_path + '/' + fname + '_' + plotflag + '_fail')
plt.close('all')
elif redblue:
cmap = 'bwr'
# velocity_temp = velocity.where(velocity > 0, other=-1) # Going away from radar
velocity[np.where(velocity < 0)] = -1
velocity[np.where(velocity >= 0)] = 1
# We will create temporary variable of velocities that sets any velocity less than 0 to 1
# color_clipped = velocity_temp.where(velocity < 0, other=1) # Going towards radar
# Define arrow colors. Limited by velocity_min and velocity_max
color_clipped = np.clip(r.data.VELO[::sub], -1, 1).squeeze()
offset = TwoSlopeNorm(vmin=-1, vcenter=0, vmax=1)
plt.title(f'{sitename} {ptype}\n{time}')
qargs = dict(cmap=cmap,
scale=scale,
headwidth=headwidth,
headlength=headlength,
headaxislength=headaxislength)
qargs['transform'] = ccrs.PlateCarree()
qargs['norm'] = offset
# plot arrows over pcolor
h = ax.quiver(lon[::sub], lat[::sub], u[::sub], v[::sub],
color_clipped, **qargs)
# map_features(ax, extent, LAND, edgecolor, landcolor, state_lines)
plt.savefig(save_path + '/' + fname + '_rb')
plt.close('all')
else:
plt.title(f'{sitename} {ptype}\n{time}')
cmap = cmocean.cm.balance
# Colorbar options
velocity_min = vlims[
0] # The minimum speed that should be displayed on the colorbar
velocity_max = vlims[
1] # The maximum speed that should be displayed on the colorbar
cbar_step = 10 # The step between each colorbar tick
offset = Normalize(vmin=velocity_min, vmax=velocity_max, clip=True)
# Define arrow colors. Limited by velocity_min and velocity_max
color_clipped = np.clip(r.data.VELO[::sub], velocity_min,
velocity_max).squeeze()
ticks = np.append(np.arange(velocity_min, velocity_max, cbar_step),
velocity_max)
qargs = dict(cmap=cmap,
scale=scale,
headwidth=headwidth,
headlength=headlength,
headaxislength=headaxislength)
qargs['transform'] = ccrs.PlateCarree()
qargs['norm'] = offset
# plot arrows over pcolor
h = ax.quiver(lon[::sub], lat[::sub], u[::sub], v[::sub],
color_clipped, **qargs)
# map_features(ax, extent, LAND, edgecolor, landcolor, state_lines)
# generate colorbar
divider = make_axes_locatable(ax)
cax = divider.new_horizontal(size='5%',
pad=0.05,
axes_class=plt.Axes)
fig.add_axes(cax)
cb = plt.colorbar(h, cax=cax, ticks=ticks)
cb.ax.set_yticklabels([f'{s:d}' for s in ticks])
cb.set_label('cm/s')
plt.savefig(save_path + '/' + fname)
plt.close('all')