def determine_average_emissivity(
outname,
emissivity_output,
landcover_map,
avg_lse_expression,
quiet=True,
):
"""
Produce an average emissivity map based on FROM-GLC map covering the region
of interest.
"""
msg = (
'\n|i Determining average land surface emissivity based on a look-up table '
)
if not quiet:
msg += ('| Expression:\n\n {exp}')
msg = msg.format(exp=avg_lse_expression)
g.message(msg)
avg_lse_expression = replace_dummies(
avg_lse_expression,
instring=DUMMY_MAPCALC_STRING_FROM_GLC,
outstring=landcover_map,
)
avg_lse_equation = EQUATION.format(
result=outname,
expression=avg_lse_expression,
)
grass.mapcalc(avg_lse_equation, overwrite=True)
if not quiet:
run('r.info', map=outname, flags='r')
# save land surface emissivity map?
if emissivity_output:
run('g.rename', raster=(outname, emissivity_output))
def determine_delta_emissivity(
outname,
delta_emissivity_output,
landcover_map,
delta_lse_expression,
quiet=True,
):
"""
Produce a delta emissivity map based on the FROM-GLC map covering the
region of interest.
"""
msg = "\n|i Determining delta land surface emissivity based on a " "look-up table "
if not quiet:
msg += "| Expression:\n\n {exp}"
msg = msg.format(exp=delta_lse_expression)
g.message(msg)
delta_lse_expression = replace_dummies(
delta_lse_expression,
instring=DUMMY_MAPCALC_STRING_FROM_GLC,
outstring=landcover_map,
)
delta_lse_equation = EQUATION.format(result=outname,
expression=delta_lse_expression)
grass.mapcalc(delta_lse_equation, overwrite=True)
if not quiet:
run("r.info", map=outname, flags="r")
# save delta land surface emissivity map?
if delta_emissivity_output:
run("g.rename", raster=(outname, delta_emissivity_output))
def digital_numbers_to_radiance(
outname,
band,
radiance_expression,
null=False,
quiet=False,
):
"""
Convert Digital Number values to TOA Radiance. For details, see in Landsat8
class. Zero (0) DNs set to NULL here (not via the class' function).
"""
if null:
msg = "\n|i Setting zero (0) Digital Numbers in {band} to NULL"
msg = msg.format(band=band)
g.message(msg)
run('r.null', map=band, setnull=0)
msg = "\n|i Rescaling {band} digital numbers to spectral radiance "
msg = msg.format(band=band)
if not quiet:
msg += '| Expression: '
msg += radiance_expression
g.message(msg)
radiance_expression = replace_dummies(radiance_expression,
instring=DUMMY_MAPCALC_STRING_DN,
outstring=band)
radiance_equation = EQUATION.format(result=outname,
expression=radiance_expression)
grass.mapcalc(radiance_equation, overwrite=True)
if not quiet:
run('r.info', map=outname, flags='r')
def radiance_to_brightness_temperature(
outname,
radiance,
temperature_expression,
quiet=False,
):
"""
Convert Spectral Radiance to At-Satellite Brightness Temperature. For
details see Landsat8 class.
"""
temperature_expression = replace_dummies(
temperature_expression,
instring=DUMMY_MAPCALC_STRING_RADIANCE,
outstring=radiance)
msg = "\n|i Converting spectral radiance to at-Satellite Temperature "
if not quiet:
msg += "| Expression: " + str(temperature_expression)
g.message(msg)
temperature_equation = EQUATION.format(result=outname,
expression=temperature_expression)
grass.mapcalc(temperature_equation, overwrite=True)
if not quiet:
run('r.info', map=outname, flags='r')
def determine_delta_emissivity(
outname,
delta_emissivity_output,
landcover_map,
delta_lse_expression,
info=False,
):
"""
Produce a delta emissivity map based on the FROM-GLC map covering the
region of interest.
"""
msg = ('\n|i Determining delta land surface emissivity based on a '
'look-up table ')
if info:
msg += (f'\n Expression:\n\n {delta_lse_expression}')
g.message(msg)
delta_lse_expression = replace_dummies(
delta_lse_expression,
instring=DUMMY_MAPCALC_STRING_FROM_GLC,
outstring=landcover_map,
)
delta_lse_equation = EQUATION.format(
result=outname,
expression=delta_lse_expression,
)
grass.mapcalc(delta_lse_equation, overwrite=True)
if info:
run('r.info', map=outname, flags='r')
# save delta land surface emissivity map?
if delta_emissivity_output:
run('g.rename', raster=(outname, delta_emissivity_output))
def estimate_cwv_big_expression(
outname,
cwv_output,
t10,
t11,
cwv_expression,
quiet=True,
):
"""
Derive a column water vapor map using a single mapcalc expression based on
eval.
*** To Do: evaluate -- does it work correctly? *** !
"""
msg = "\n|i Estimating atmospheric column water vapor "
if quiet:
msg += "| Expression:\n"
g.message(msg)
if quiet:
msg = replace_dummies(cwv_expression,
in_ti=t10,
out_ti="T10",
in_tj=t11,
out_tj="T11")
msg += "\n"
g.message(msg)
cwv_equation = EQUATION.format(result=outname, expression=cwv_expression)
grass.mapcalc(cwv_equation, overwrite=True)
if quiet:
run("r.info", map=outname, flags="r")
# save Column Water Vapor map?
if cwv_output:
# strings for metadata
history_cwv = "FixMe -- Column Water Vapor model: "
history_cwv += "FixMe -- Add equation?"
title_cwv = "Column Water Vapor"
description_cwv = "Column Water Vapor"
units_cwv = "g/cm^2"
source1_cwv = "FixMe"
source2_cwv = "FixMe"
# history entry
run(
"r.support",
map=outname,
title=title_cwv,
units=units_cwv,
description=description_cwv,
source1=source1_cwv,
source2=source2_cwv,
history=history_cwv,
)
run("g.rename", raster=(outname, cwv_output))
def estimate_lst(
outname,
t10,
t11,
landcover_map,
landcover_class,
avg_lse_map,
delta_lse_map,
cwv_map,
lst_expression,
rounding,
celsius,
quiet=True,
):
"""
Produce a Land Surface Temperature map based on a mapcalc expression
returned from a SplitWindowLST object.
Parameters
----------
outname
t10
t11
landcover_map
landcover_class
avg_lse_map
delta_lse_map
cwv_map
lst_expression
rounding
celsius
quiet
Inputs are:
- brightness temperature maps t10, t11
- column water vapor map
- a temporary filename
- a valid mapcalc expression
"""
msg = "\n|i Estimating land surface temperature "
g.message(msg)
if not quiet:
msg += "| Expression:\n"
msg = lst_expression
msg += "\n"
g.message(msg)
if landcover_map:
split_window_expression = replace_dummies(
lst_expression,
in_avg_lse=DUMMY_MAPCALC_STRING_AVG_LSE,
out_avg_lse=avg_lse_map,
in_delta_lse=DUMMY_MAPCALC_STRING_DELTA_LSE,
out_delta_lse=delta_lse_map,
in_cwv=DUMMY_MAPCALC_STRING_CWV,
out_cwv=cwv_map,
in_ti=DUMMY_MAPCALC_STRING_T10,
out_ti=t10,
in_tj=DUMMY_MAPCALC_STRING_T11,
out_tj=t11,
)
elif landcover_class:
split_window_expression = replace_dummies(
lst_expression,
in_cwv=DUMMY_MAPCALC_STRING_CWV,
out_cwv=cwv_map,
in_ti=DUMMY_MAPCALC_STRING_T10,
out_ti=t10,
in_tj=DUMMY_MAPCALC_STRING_T11,
out_tj=t11,
)
if rounding:
split_window_expression = "(round({swe}, 2, 0.5))".format(
swe=split_window_expression)
if celsius:
split_window_expression = "({swe}) - 273.15".format(
swe=split_window_expression)
split_window_equation = EQUATION.format(
result=outname,
expression=split_window_expression,
)
grass.mapcalc(
split_window_equation,
overwrite=True,
)
if not quiet:
run("r.info", map=outname, flags="r")
def estimate_lst(
outname,
t10,
t11,
landcover_map,
landcover_class,
avg_lse_map,
delta_lse_map,
cwv_map,
lst_expression,
rounding,
celsius,
info=False,
):
"""
Produce a Land Surface Temperature map based on a mapcalc expression
returned from a SplitWindowLST object.
Parameters
----------
outname
t10
t11
landcover_map
landcover_class
avg_lse_map
delta_lse_map
cwv_map
lst_expression
rounding
celsius
info
Inputs are:
- brightness temperature maps t10, t11
- column water vapor map
- a temporary filename
- a valid mapcalc expression
"""
msg = '\n|i Estimating land surface temperature '
if info:
msg += f'\n Expression:\n {lst_expression}'
g.message(msg)
if landcover_map:
split_window_expression = replace_dummies(
lst_expression,
in_avg_lse=DUMMY_MAPCALC_STRING_AVG_LSE,
out_avg_lse=avg_lse_map,
in_delta_lse=DUMMY_MAPCALC_STRING_DELTA_LSE,
out_delta_lse=delta_lse_map,
in_cwv=DUMMY_MAPCALC_STRING_CWV,
out_cwv=cwv_map,
in_ti=DUMMY_MAPCALC_STRING_T10,
out_ti=t10,
in_tj=DUMMY_MAPCALC_STRING_T11,
out_tj=t11)
elif landcover_class:
split_window_expression = replace_dummies(
lst_expression,
in_cwv=DUMMY_MAPCALC_STRING_CWV,
out_cwv=cwv_map,
in_ti=DUMMY_MAPCALC_STRING_T10,
out_ti=t10,
in_tj=DUMMY_MAPCALC_STRING_T11,
out_tj=t11)
if rounding:
split_window_expression = f'(round({split_window_expression}, 2, 0.5))'
msg = '\n|i Rounding temperature figures to 2 decimals'
g.message(msg)
if celsius:
split_window_expression = f'({split_window_expression}) - 273.15'
msg = '\n|i Converting temperature figures to Celsius degrees'
g.message(msg)
split_window_equation = EQUATION.format(
result=outname,
expression=split_window_expression,
)
grass.mapcalc(
split_window_equation,
overwrite=True,
)
if info:
run('r.info', map=outname, flags='r')
def estimate_cwv(
temporary_map,
cwv_map,
t10,
t11,
window_size,
median=False,
info=False,
):
"""
Derive a column water vapor map using a single mapcalc expression based on
eval.
*** To Do: evaluate -- does it work correctly? *** !
"""
msg = "\n|i Estimating atmospheric column water vapor"
cwv = Column_Water_Vapor(window_size, t10, t11)
if median:
msg += f'\n|! Computing median value in a {window_size}^2 pixel neighborhood'
cwv_expression = cwv._cwv_expression_median()
else:
cwv_expression = cwv._cwv_expression_mean()
# if accuracy:
# if median:
# accuracy_expression = cwv._accuracy_expression_median()
# else:
# accuracy_expression = cwv._accuracy_expression_mean()
# else:
# accuracy_expression = str()
if info:
msg += '\n Expression:\n'
msg = replace_dummies(
cwv_expression,
in_ti=t10, out_ti='T10',
in_tj=t11, out_tj='T11',
)
g.message(msg)
cwv_equation = EQUATION.format(
result=temporary_map,
expression=cwv_expression,
)
grass.mapcalc(cwv_equation, overwrite=True)
# accuracy_equation = EQUATION.format(result=outname, expression=accuracy_expression)
# grass.mapcalc(accuracy_equation, overwrite=True)
if info:
run('r.info', map=temporary_map, flags='r')
if cwv_map:
history_cwv = f'\nColumn Water Vapor = {cwv._equation}'
history_cwv += f'\nSpatial window size: {cwv.window_size}^2'
title_cwv = 'Column Water Vapor'
description_cwv = 'Column Water Vapor based on MSWVCM'
units_cwv = 'g/cm^2'
source1_cwv = cwv.citation
source2_cwv = 'FixMe'
run("r.support",
map=temporary_map,
title=title_cwv,
units=units_cwv,
description=description_cwv,
source1=source1_cwv,
source2=source2_cwv,
history=history_cwv,
)
run('g.rename', raster=(temporary_map, cwv_map))