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1、质量控制：小于0的辐亮度值设置为很小的正值；

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2、3fld和sfld：限制找OA位置的窗口到759-761nm；
3、3fld和sfld：限制找OA位置的数据的时间 → 早上10点到下午3点；
This commit is contained in:
tangchao0503
2023-12-20 14:03:23 +08:00
parent 0d689e745b
commit d0d897674b
2 changed files with 27 additions and 7 deletions
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23
sif_methods.py
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@ -6,11 +6,16 @@ def cal_inside_bands_ave(data):
'''
根据多个光谱找出窗口内数据最低点对应波长
'''
sky_spec = data.sky
veg_spec = data.veg
wvl_inside_band_l = np.mean(veg_spec.idxmin(dim='Wavelength')).values
wvl_inside_band_e = np.mean(sky_spec.idxmin(dim='Wavelength')).values
return[wvl_inside_band_l,wvl_inside_band_e]
sky_spec = data.sky.to_pandas().between_time('10:00:00', '15:00:00')
veg_spec = data.veg.to_pandas().between_time('10:00:00', '15:00:00')
sky_idxmin = sky_spec.idxmin(axis=1)
veg_idxmin = veg_spec.idxmin(axis=1)
wvl_inside_band_l = veg_idxmin.mean()
wvl_inside_band_e = sky_idxmin.mean()
return[wvl_inside_band_l, wvl_inside_band_e]
def cal_outside_values_mean(data,outer):
'''
@ -38,7 +43,9 @@ def sfld(data,wl_range,outer):
nmeas_ = data.Measures.size
data = data.where((data.Wavelength>wl_range[0])&(data.Wavelength<wl_range[1]),drop=True)
[wvl_inside_band_l,wvl_inside_band_e]=cal_inside_bands_ave(data)
data2 = data.where((data.Wavelength > outer[1]) & (data.Wavelength < outer[1] + 3), drop=True)
[wvl_inside_band_l,wvl_inside_band_e]=cal_inside_bands_ave(data2)
for i in range(0,nmeas_):
_data = data.isel(Measures=i)
veg_out,sky_out,_ = cal_outside_values_mean(_data,outer)
@ -67,7 +74,9 @@ def fld3(data,wl_range,outer_left,outer_right):
nmeas_ = data.Measures.size
data = data.where((data.Wavelength>wl_range[0])&(data.Wavelength<wl_range[1]),drop=True)
[wvl_inside_band_l,wvl_inside_band_e]=cal_inside_bands_ave(data)
data2 = data.where((data.Wavelength > outer_left[1]) & (data.Wavelength < outer_right[0]), drop=True)
[wvl_inside_band_l,wvl_inside_band_e]=cal_inside_bands_ave(data2) # 应该局限到759-761
for i in range(0,nmeas_):
_data = data.isel(Measures=i)
veg_out_left,sky_out_left,wvl_outer_left = cal_outside_values_mean(_data,outer_left)

11
sif_retrieval.py
View File

@ -168,11 +168,21 @@ def processing(standard_sif, folder, out_file, pars, data, header, sky_p='P1', m
# _ = _.where((_.Wavelength>731.3)&(_.Wavelength<782),drop=True)
sky = _.sel(point=sky_p, drop=True).rename('sky')
# 质量控制
tmp = sky.values
tmp[tmp < 0] = 0.0000000000000001
sky.values = tmp
for p in _.point:
if p == sky_p:
continue
else:
veg = _.sel(point=p, drop=True).rename('veg')
# 质量控制
tmp = veg.values
tmp[tmp < 0] = 0.0000000000000001
veg.values = tmp
input_each = xr.merge([sky, veg])
_hf = intep(standard_sif, input_each.Wavelength.values) # 将标准sif插值匹配到数据的波长
input_each['hf'] = (['Wavelength'], _hf)
@ -289,4 +299,5 @@ def main():
if __name__ == '__main__':
print('Version: 2.3.6')
main()