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Fix sunz normalization for viirs_compact #108

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merged 3 commits into from
Jan 30, 2025
Merged

Fix sunz normalization for viirs_compact #108

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3f5108d
Fix sunz normalization for viirs_compact
ninahakansson Jan 24, 2025
f73ef35
Fix test
ninahakansson Jan 30, 2025
e6abfad
Fix syntax
ninahakansson Jan 30, 2025
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2 changes: 2 additions & 0 deletions level1c4pps/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -437,6 +437,8 @@ def set_header_and_band_attrs_defaults(scene, BANDNAMES, PPS_TAGNAMES, REFL_BAND
fix_sun_earth_distance_correction_factor(scene, band, irch.attrs['start_time'])
scene[band].attrs['wavelength'] = scene[band].attrs['wavelength'][0:3]
scene[band].attrs['sun_zenith_angle_correction_applied'] = 'False'
if "sunz_corrected" in scene[band].attrs.get('modifiers', []):
scene[band].attrs['sun_zenith_angle_correction_applied'] = 'True'
if idtag in PPS_TAGNAMES_TO_IMAGE_NR:
scene[band].attrs['name'] = PPS_TAGNAMES_TO_IMAGE_NR[idtag]
else:
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1 change: 1 addition & 0 deletions level1c4pps/tests/test_viirs2pps.py
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Expand Up @@ -37,6 +37,7 @@ def setUp(self):
"""Create a test scene."""
viirs2pps.BANDNAMES = ['M05', 'M15']
vis006 = mock.MagicMock(attrs={'name': 'image0',
'modifiers': ("sunz_correction", ),
'wavelength': [1, 2, 3, 'um'],
'id_tag': 'ch_r06'})
ir_108 = mock.MagicMock(attrs={
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9 changes: 7 additions & 2 deletions level1c4pps/viirs2pps_lib.py
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Expand Up @@ -114,7 +114,7 @@ def set_header_and_band_attrs(scene, orbit_n=0):
for band in REFL_BANDS:
if band not in scene:
continue
# For VIIRS data sun_zenith_angle_correction_applied is applied always!
# VIIRS data read with sunz_corrected modifier
scene[band].attrs['sun_zenith_angle_correction_applied'] = 'True'
return nimg

Expand All @@ -140,12 +140,17 @@ def process_one_scene(scene_files, out_path, use_iband_res=False, reader='viirs_
MY_IBAND_I = IBAND_PPS_I
MY_IBAND_M = IBAND_PPS_M

MY_MBAND_REFL = [band for band in MY_MBAND if band in REFL_BANDS]
MY_MBAND_TB = [band for band in MY_MBAND if band not in REFL_BANDS]

if use_iband_res:
scn_.load(MY_IBAND_I + ANGLE_NAMES + ['i_latitude', 'i_longitude'], resolution=371)
scn_.load(MY_IBAND_M, resolution=742)
scn_ = scn_.resample(resampler='native')
elif reader == "viirs_compact":
scn_.load(MY_MBAND + ANGLE_NAMES + ['latitude_m', 'longitude_m'], resolution=742)
scn_.load(MY_MBAND_TB + ANGLE_NAMES + ['latitude_m', 'longitude_m'], resolution=742)
# Load reflective bands with sunz-correction (not the default for VIIRS compact).
scn_.load(MY_MBAND_REFL, modifiers=("sunz_corrected", ))
else:
scn_.load(MY_MBAND + ANGLE_NAMES + ['m_latitude', 'm_longitude'], resolution=742)

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