class TestSolarflux(unittest.TestCase):
"""Unit testing the solar flux calculations."""
def setUp(self):
"""Set up."""
self.solar_irr = SolarIrradianceSpectrum(
TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=0.005)
self.rsr = TEST_RSR
def test_read(self):
"""Test that solar irradiance spctrum."""
self.assertTrue(os.path.exists(self.solar_irr.filename))
self.assertEqual(self.solar_irr.wavelength.shape[0], 1697)
self.assertEqual(self.solar_irr.irradiance.shape[0], 1697)
def test_solar_flux(self):
"""Calculate the solar-flux."""
# rsr function (se above) is given in micronsm therefore the scale
# factor is 1.0 and not 1e+6 (default)!
sflux = self.solar_irr.inband_solarflux(self.rsr, scale=1.0)
self.assertAlmostEqual(sflux, 2.002927627)
# self.assertAlmostEqual(sflux, 2.5)
def test_interpolate(self):
"""Test the interpolate method."""
self.solar_irr.interpolate(dlambda=0.001,
ival_wavelength=(0.200, 0.240))
self.assertTrue(
np.allclose(RESULT_IPOL_WVLS, self.solar_irr.ipol_wavelength))
def _get_solarflux(self):
"""Derive the in-band solar flux from rsr over the Near IR band (3.7 or 3.9 microns)."""
solar_spectrum = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.0005,
wavespace=self.wavespace)
self.solar_flux = solar_spectrum.inband_solarflux(self.rsr[self.bandname])
def main():
"""Main"""
handler = logging.StreamHandler(sys.stderr)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter(fmt=_DEFAULT_LOG_FORMAT,
datefmt=_DEFAULT_TIME_FORMAT)
handler.setFormatter(formatter)
logging.getLogger('').addHandler(handler)
logging.getLogger('').setLevel(logging.DEBUG)
modis = RelativeSpectralResponse('EOS-Aqua', 'modis')
modis.read(channel='20', scale=0.001)
solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
solar_irr.read()
# Calculate the solar-flux:
sflux = solar_irr.solar_flux_over_band(modis.rsr)
print("Solar flux over Band: ", sflux)
from pyspectral.nir_reflectance import Calculator
#refl37 = Calculator(modis.rsr, solar_flux=sflux)
refl37 = Calculator(modis.rsr)
sunz = 80.
tb3 = 290
tb4 = 282
refl = refl37.reflectance_from_tbs(sunz, tb3, tb4)
print refl
refl37.make_tb2rad_lut('./modis_EOS-Aqua_band20_tb2rad_lut.npz')
def main():
"""Main"""
handler = logging.StreamHandler(sys.stderr)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter(fmt=_DEFAULT_LOG_FORMAT, datefmt=_DEFAULT_TIME_FORMAT)
handler.setFormatter(formatter)
logging.getLogger("").addHandler(handler)
logging.getLogger("").setLevel(logging.DEBUG)
modis = RelativeSpectralResponse("EOS-Aqua", "modis")
modis.read(channel="20", scale=0.001)
solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=0.005)
solar_irr.read()
# Calculate the solar-flux:
sflux = solar_irr.solar_flux_over_band(modis.rsr)
print ("Solar flux over Band: ", sflux)
from pyspectral.nir_reflectance import Calculator
# refl37 = Calculator(modis.rsr, solar_flux=sflux)
refl37 = Calculator(modis.rsr)
sunz = 80.0
tb3 = 290
tb4 = 282
refl = refl37.reflectance_from_tbs(sunz, tb3, tb4)
print refl
refl37.make_tb2rad_lut("./modis_EOS-Aqua_band20_tb2rad_lut.npz")
def test_solar_flux(self):
"""Calculate the solar-flux"""
self.solar_irr = SolarIrradianceSpectrum(
TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=0.005)
# rsr function (se above) is given in micronsm therefore the scale
# factor is 1.0 and not 1e+6 (default)!
sflux = self.solar_irr.inband_solarflux(self.rsr, scale=1.0)
self.assertAlmostEqual(sflux, 2.0029277645144234)
def _get_solarflux(self):
"""Derive the in-band solar flux from rsr over the Near IR band (3.7 or
3.9 microns)"""
solar_spectrum = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.0005,
wavespace=self.wavespace)
self.solar_flux = solar_spectrum.inband_solarflux(
self.rsr[self.bandname])
def test_read(self):
"""Test that solar irradiance spctrum"""
self.solar_irr = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
self.assertTrue(os.path.exists(self.solar_irr.filename))
self.assertEqual(self.solar_irr.wavelength.shape[0], 1697)
self.assertEqual(self.solar_irr.irradiance.shape[0], 1697)
def srf_exatmospheric_irradiance(srf, dlambda_nm=0.5, start_nm=200.0, end_nm=2000.0):
"""
Compute the exatmospheric solar irradiance of some sensor (band) at 1a.u.
:param srf: SRF
`dlambda_nm`, `start_nm`, `end_nm`: interpolation parameters for the solar spectrum
:return: band irradiance at 1au, in [W/(m^2 nm)]
"""
srr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=dlambda_nm/1000)
srr.interpolate(ival_wavelength=(start_nm/1000, end_nm/1000))
lambdas = srr.ipol_wavelength * 1000
values = srr.ipol_irradiance / 1000.0
response = srf(lambdas)
avg = np.dot(response, values) / np.sum(response)
return avg
def exatmospheric_irradiance(srf, dlambda_nm=0.5, start_nm=200.0, end_nm=2000.0):
"""
Compute the exatmospheric solar irradiance of some sensor (band) at 1a.u.
:param srf: SRF
`dlambda_nm`, `start_nm`, `end_nm`: interpolation parameters for the solar spectrum
:return: band irradiance at 1au, in [W/(m^2 um)]
"""
warnings.warn(DeprecationWarning(
'`exatmospheric_irradiance` is scheduled to be removed, '
'use `srf_exatmospheric_irradiance` (nm based units) instead.'))
srr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=dlambda_nm/1000)
srr.interpolate(ival_wavelength=(start_nm/1000, end_nm/1000))
lambdas = srr.ipol_wavelength * 1000
response = srf(lambdas)
avg = np.dot(response, srr.ipol_irradiance) / np.sum(response)
return avg
class TestSolarflux(unittest.TestCase):
"""Unit testing the solar flux calculations"""
def setUp(self):
"""Set up"""
self.solar_irr = None
self.rsr = TEST_RSR
return
def test_read(self):
"""Test that solar irradiance spctrum"""
self.solar_irr = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
self.assertTrue(os.path.exists(self.solar_irr.filename))
self.assertEqual(self.solar_irr.wavelength.shape[0], 1697)
self.assertEqual(self.solar_irr.irradiance.shape[0], 1697)
def test_solar_flux(self):
"""Calculate the solar-flux"""
self.solar_irr = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
# rsr function (se above) is given in micronsm therefore the scale
# factor is 1.0 and not 1e+6 (default)!
sflux = self.solar_irr.inband_solarflux(self.rsr, scale=1.0)
self.assertAlmostEqual(sflux, 2.0029277645144234)
#self.assertAlmostEqual(sflux, 2.5)
def tearDown(self):
"""Clean up"""
return
class TestSolarflux(unittest.TestCase):
"""Unit testing the solar flux calculations"""
def setUp(self):
"""Set up"""
self.solar_irr = None
self.rsr = TEST_RSR
return
def test_read(self):
"""Test that solar irradiance spctrum"""
self.solar_irr = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
self.assertTrue(os.path.exists(self.solar_irr.filename))
self.assertEqual(self.solar_irr.wavelength.shape[0], 1697)
self.assertEqual(self.solar_irr.irradiance.shape[0], 1697)
def test_solar_flux(self):
"""Calculate the solar-flux"""
self.solar_irr = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
# rsr function (se above) is given in micronsm therefore the scale
# factor is 1.0 and not 1e+6 (default)!
sflux = self.solar_irr.inband_solarflux(self.rsr, scale=1.0)
self.assertAlmostEqual(sflux, 2.0029277645144234)
#self.assertAlmostEqual(sflux, 2.5)
def tearDown(self):
"""Clean up"""
return
def test_solar_flux(self):
"""Calculate the solar-flux"""
self.solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
# rsr function (se above) is given in micronsm therefore the scale
# factor is 1.0 and not 1e+6 (default)!
sflux = self.solar_irr.inband_solarflux(self.rsr, scale=1.0)
self.assertAlmostEqual(sflux, 2.0029277645144234)
def test_read(self):
"""Test that solar irradiance spctrum"""
self.solar_irr = \
SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
self.assertTrue(os.path.exists(self.solar_irr.filename))
self.assertEqual(self.solar_irr.wavelength.shape[0], 1697)
self.assertEqual(self.solar_irr.irradiance.shape[0], 1697)
def __init__(self, wave1=200*u.nm, wave2=1200*u.nm, dlambda=1*u.nm,
i=75*u.deg, d=1.5):
self.wave1 = wave1
self.wave2 = wave2
self.dlambda = dlambda
self.i = i # incidence angle
self.d = d # Mars distance in AU (scaling the solar flux)
sol = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM)
sol.interpolate(dlambda=dlambda.to(u.micron).value,
ival_wavelength=(wave1.to(u.micron).value,
wave2.to(u.micron).value))
self.waves = (sol.ipol_wavelength*u.micron).to(u.nm)
self.E_w = (sol.ipol_irradiance*self.E_w_unit_in).to(self.E_w_unit_out)
self.read_reflectance()
self.read_QE()
for k, v in dic.items():
setattr(self, k, v)
def setUp(self):
"""Set up."""
self.solar_irr = SolarIrradianceSpectrum(
TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=0.005)
self.rsr = TEST_RSR
import sys
handler = logging.StreamHandler(sys.stderr)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter(fmt=_DEFAULT_LOG_FORMAT,
datefmt=_DEFAULT_TIME_FORMAT)
handler.setFormatter(formatter)
logging.getLogger('').addHandler(handler)
logging.getLogger('').setLevel(logging.DEBUG)
LOG = logging.getLogger('example')
modis = RelativeSpectralResponse('eos', 2, 'modis')
modis.read(channel='20', scale=0.001)
solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
solar_irr.read()
# Calculate the solar-flux:
sflux = solar_irr.solar_flux_over_band(modis.rsr)
print("Solar flux over Band: ", sflux)
from pyspectral.nir_reflectance import Calculator
#refl37 = Calculator(modis.rsr, solar_flux=sflux)
refl37 = Calculator(modis.rsr)
SUNZ = 80.
TB3 = 290
TB4 = 282
REFL = refl37.reflectance_from_tbs(SUNZ, TB3, TB4)
print REFL
print("*** plot day microphysics RGB for ", str(tslot))
#glbd = GeostationaryFactory.create_scene("meteosat", "09", "seviri", tslot)
glbd = GeostationaryFactory.create_scene("Meteosat-9", "", "seviri", tslot)
print("... load sat data")
glbd.load(['VIS006','VIS008','IR_016','IR_039','IR_108','IR_134'], area_extent=europe.area_extent)
#area="EuropeCanaryS95"
area="EuroMercator" # blitzortung projection
local_data = glbd.project(area, precompute=True)
print("... read responce functions")
from pyspectral.near_infrared_reflectance import Calculator
from pyspectral.solar import (SolarIrradianceSpectrum, TOTAL_IRRADIANCE_SPECTRUM_2000ASTM)
solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=0.0005)
#from pyspectral.seviri_rsr import load
#seviri = load()
#rsr = {'wavelength': seviri['IR3.9']['wavelength'],
# 'response': seviri['IR3.9']['met10']['95']}
#sflux = solar_irr.solar_flux_over_band(rsr)
solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM, dlambda=0.0005)
from pyspectral.rsr_reader import RelativeSpectralResponse
seviri = RelativeSpectralResponse('Meteosat-10', 'seviri')
sflux = solar_irr.inband_solarflux(seviri.rsr['IR3.9'])
ch39 = local_data['IR_039']
ch11 = local_data['IR_108']
ch13 = local_data['IR_134']
x, y = [np.ma.ravel(x.image) / 65536.0 for x in [l8_tile, s2_tile]]
plt.figure()
plt.plot(x, y, ',')
plt.plot([0.15, 0.35], [0.15, 0.35], 'k-')
plt.xlabel('l8')
plt.ylabel('s2')
plt.grid(True)
# some spectral plots
if (0):
import numpy as np
import matplotlib.pyplot as plt
from calval.satellites.srf import Sentinel2Green, Sentinel2Red, Landsat8Blue, NewsatBlue, NewsatRed
from pyspectral.solar import (SolarIrradianceSpectrum,
TOTAL_IRRADIANCE_SPECTRUM_2000ASTM)
srr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.0005)
srr.interpolate(ival_wavelength=(0.200, 2.000))
print(srr.units)
print(srr.ipol_wavelength, srr.ipol_irradiance)
plt.figure()
plt.plot(srr.ipol_wavelength, srr.ipol_irradiance, 'k-.')
srf = Sentinel2Green()
x = srr.ipol_wavelength * 1000
vals = srf(x) * srr.ipol_irradiance
avg = np.dot(srf(x), srr.ipol_irradiance) / np.sum(srf(x))
plt.plot(srr.ipol_wavelength, vals, 'g-')
plt.plot([srf.start / 1000, srf.end / 1000], [avg, avg], 'g--')
srf = Sentinel2Red()
x = srr.ipol_wavelength * 1000
handler = logging.StreamHandler(sys.stderr)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter(fmt=_DEFAULT_LOG_FORMAT,
datefmt=_DEFAULT_TIME_FORMAT)
handler.setFormatter(formatter)
logging.getLogger('').addHandler(handler)
logging.getLogger('').setLevel(logging.DEBUG)
LOG = logging.getLogger('example')
modis = RelativeSpectralResponse('eos', 2, 'modis')
modis.read(channel='20', scale=0.001)
solar_irr = SolarIrradianceSpectrum(TOTAL_IRRADIANCE_SPECTRUM_2000ASTM,
dlambda=0.005)
solar_irr.read()
# Calculate the solar-flux:
sflux = solar_irr.solar_flux_over_band(modis.rsr)
print("Solar flux over Band: ", sflux)
from pyspectral.nir_reflectance import Calculator
#refl37 = Calculator(modis.rsr, solar_flux=sflux)
refl37 = Calculator(modis.rsr)
SUNZ = 80.
TB3 = 290
TB4 = 282
REFL = refl37.reflectance_from_tbs(SUNZ, TB3, TB4)
print REFL