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handle NaN for ancillary wind #70

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merged 3 commits into from
Jun 24, 2024
Merged

handle NaN for ancillary wind #70

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ab2d00d
handle NaN in ancillary
vincelhx Jun 15, 2024
d1717a9
Merge branch 'umr-lops:master' into master
vincelhx Jun 15, 2024
a74c886
change HR steps for wind inversion
vincelhx Jun 21, 2024
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3 changes: 0 additions & 3 deletions src/xsarsea/windspeed/cmod7.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,9 +56,6 @@ def _raw_lut(self, **kwargs):
final_dims = ['incidence', 'wspd', 'phi']
coords = {'incidence': inc, 'phi': phi, 'wspd': wspd}

self.wspd_step = 0.2
self.inc_step = 0.2
self.phi_step = 1
self.wspd_range = self.wspd_range_lr
self.inc_range = self.inc_range_lr
self.phi_range = self.phi_range_lr
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9 changes: 9 additions & 0 deletions src/xsarsea/windspeed/windspeed.py
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Expand Up @@ -182,13 +182,22 @@ def __invert_from_model_1d(inc_1d, sigma0_co_db_1d, sigma0_cr_db_1d, dsig_cr_1d,
one_sigma0_cr_db = sigma0_cr_db_1d[i]
one_dsig_cr = dsig_cr_1d[i]
one_ancillary_wind = ancillary_wind_1d[i]

#  if incidence is NaN ; all output is NaN
if np.isnan(one_inc):
out_co[i] = np.nan
out_cr[i] = np.nan
continue

#  if ancillary is NaN, copol & dualpol are NaN
if (not np.isnan(np.abs(one_sigma0_co_db)) and np.isnan(np.abs(one_ancillary_wind))):
out_co[i] = np.nan
out_cr[i] = np.nan
continue

if not np.isnan(one_sigma0_co_db):
# copol inversion available

i_inc = np.argmin(np.abs(np_inc_dim-one_inc))
np_sigma0_co_lut_db_inc = np_sigma0_co_lut_db[:, :, i_inc]

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