|
1
|
|
|
#!/usr/bin/env python |
|
2
|
|
|
# -*- coding: utf-8 -*- |
|
3
|
|
|
|
|
4
|
|
|
# Copyright (c) 2013-2018 Adam.Dybbroe |
|
5
|
|
|
|
|
6
|
|
|
# Author(s): |
|
7
|
|
|
|
|
8
|
|
|
# Adam.Dybbroe <[email protected]> |
|
9
|
|
|
|
|
10
|
|
|
# This program is free software: you can redistribute it and/or modify |
|
11
|
|
|
# it under the terms of the GNU General Public License as published by |
|
12
|
|
|
# the Free Software Foundation, either version 3 of the License, or |
|
13
|
|
|
# (at your option) any later version. |
|
14
|
|
|
|
|
15
|
|
|
# This program is distributed in the hope that it will be useful, |
|
16
|
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
17
|
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
18
|
|
|
# GNU General Public License for more details. |
|
19
|
|
|
|
|
20
|
|
|
# You should have received a copy of the GNU General Public License |
|
21
|
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
22
|
|
|
|
|
23
|
|
|
"""Unit testing the 3.7 micron reflectance calculations""" |
|
24
|
|
|
|
|
25
|
|
|
from pyspectral.near_infrared_reflectance import Calculator |
|
26
|
|
|
from mock import patch |
|
27
|
|
|
|
|
28
|
|
|
import unittest |
|
29
|
|
|
import numpy as np |
|
30
|
|
|
|
|
31
|
|
|
TEST_RSR = {'20': {}} |
|
32
|
|
|
TEST_RSR['20']['det-1'] = {} |
|
33
|
|
|
TEST_RSR['20']['det-1']['central_wavelength'] = 3.780281935 |
|
34
|
|
|
TEST_RSR['20']['det-1']['wavelength'] = np.array([ |
|
35
|
|
|
3.6123999, 3.6163599, 3.6264927, 3.6363862, 3.646468, |
|
36
|
|
|
3.6564937, 3.6664478, 3.6765388, 3.6865413, 3.6964585, |
|
37
|
|
|
3.7065142, 3.716509, 3.7264658, 3.7364102, 3.7463682, |
|
38
|
|
|
3.7563652, 3.7664226, 3.7763396, 3.7863384, 3.7964207, |
|
39
|
|
|
3.8063589, 3.8163606, 3.8264089, 3.8364836, 3.8463381, |
|
40
|
|
|
3.8563975, 3.8664163, 3.8763755, 3.8864797, 3.8964978, |
|
41
|
|
|
3.9064275, 3.9164873, 3.9264729, 3.9364026, 3.9465107, |
|
42
|
|
|
3.9535347], dtype='double') |
|
43
|
|
|
|
|
44
|
|
|
TEST_RSR['20']['det-1']['response'] = np.array([ |
|
45
|
|
|
0.01, 0.0118, 0.01987, 0.03226, 0.05028, 0.0849, |
|
46
|
|
|
0.16645, 0.33792, 0.59106, 0.81815, 0.96077, 0.92855, |
|
47
|
|
|
0.86008, 0.8661, 0.87697, 0.85412, 0.88922, 0.9541, |
|
48
|
|
|
0.95687, 0.91037, 0.91058, 0.94256, 0.94719, 0.94808, |
|
49
|
|
|
1., 0.92676, 0.67429, 0.44715, 0.27762, 0.14852, |
|
50
|
|
|
0.07141, 0.04151, 0.02925, 0.02085, 0.01414, 0.01], dtype='double') |
|
51
|
|
|
|
|
52
|
|
|
TEST_RSR_WN = {'20': {}} |
|
53
|
|
|
TEST_RSR_WN['20']['det-1'] = {} |
|
54
|
|
|
WVN = np.array([2529.38208008, 2533.8840332, 2540.390625, 2546.81494141, |
|
55
|
|
|
2553.30883789, 2559.88354492, 2566.40722656, 2573.02270508, |
|
56
|
|
|
2579.72949219, 2586.37451172, 2593.09375, 2599.87548828, |
|
57
|
|
|
2606.55371094, 2613.41674805, 2620.29760742, 2627.18286133, |
|
58
|
|
|
2634.06005859, 2641.07421875, 2648.06713867, 2655.03930664, |
|
59
|
|
|
2662.14794922, 2669.25170898, 2676.36572266, 2683.50805664, |
|
60
|
|
|
2690.69702148, 2697.95288086, 2705.29199219, 2712.56982422, |
|
61
|
|
|
2719.94970703, 2727.43554688, 2734.8605957, 2742.38012695, |
|
62
|
|
|
2749.9831543, 2757.48510742, 2765.21142578, 2768.24291992], |
|
63
|
|
|
dtype='float32') |
|
64
|
|
|
RESP = np.array([0.01, 0.01414, 0.02085, 0.02925, 0.04151, |
|
65
|
|
|
0.07141, 0.14851999, 0.27761999, 0.44714999, 0.67429, |
|
66
|
|
|
0.92676002, 1., 0.94808, 0.94718999, 0.94256002, |
|
67
|
|
|
0.91057998, 0.91036999, 0.95687002, 0.95410001, 0.88922, |
|
68
|
|
|
0.85412002, 0.87696999, 0.86610001, 0.86008, 0.92855, |
|
69
|
|
|
0.96077001, 0.81814998, 0.59105998, 0.33792001, 0.16644999, |
|
70
|
|
|
0.0849, 0.05028, 0.03226, 0.01987, 0.0118, |
|
71
|
|
|
0.01], dtype='float32') |
|
72
|
|
|
|
|
73
|
|
|
TEST_RSR_WN['20']['det-1']['central_wavelength'] = 3.780281935 |
|
74
|
|
|
TEST_RSR_WN['20']['det-1']['wavenumber'] = WVN |
|
75
|
|
|
TEST_RSR_WN['20']['det-1']['response'] = RESP |
|
76
|
|
|
|
|
77
|
|
|
|
|
78
|
|
|
class TestReflectance(unittest.TestCase): |
|
79
|
|
|
|
|
80
|
|
|
"""Unit testing the reflectance calculations""" |
|
81
|
|
|
|
|
82
|
|
|
def setUp(self): |
|
83
|
|
|
"""Set up""" |
|
84
|
|
|
pass |
|
85
|
|
|
|
|
86
|
|
|
def test_rsr_integral(self): |
|
87
|
|
|
"""Test calculating the integral of the relative spectral response |
|
88
|
|
|
function. |
|
89
|
|
|
""" |
|
90
|
|
|
with patch('pyspectral.radiance_tb_conversion.RelativeSpectralResponse') as mymock: |
|
91
|
|
|
instance = mymock.return_value |
|
92
|
|
|
instance.rsr = TEST_RSR |
|
93
|
|
|
instance.unit = '1e-6 m' |
|
94
|
|
|
instance.si_scale = 1e-6 |
|
95
|
|
|
|
|
96
|
|
|
refl37 = Calculator('EOS-Aqua', 'modis', '20') |
|
97
|
|
|
|
|
98
|
|
|
expected = 1.8563451e-07 # unit = 'm' (meter) |
|
99
|
|
|
self.assertAlmostEqual(refl37.rsr_integral, expected) |
|
100
|
|
|
|
|
101
|
|
|
with patch('pyspectral.radiance_tb_conversion.RelativeSpectralResponse') as mymock: |
|
102
|
|
|
instance = mymock.return_value |
|
103
|
|
|
instance.rsr = TEST_RSR_WN |
|
104
|
|
|
instance.unit = 'cm-1' |
|
105
|
|
|
instance.si_scale = 100. |
|
106
|
|
|
|
|
107
|
|
|
refl37 = Calculator('EOS-Aqua', 'modis', '20', wavespace='wavenumber') |
|
108
|
|
|
|
|
109
|
|
|
expected = 13000.385 # SI units = 'm-1' (1/meter) |
|
110
|
|
|
res = refl37.rsr_integral |
|
111
|
|
|
self.assertAlmostEqual(res / expected, 1.0, 6) |
|
112
|
|
|
|
|
113
|
|
|
def test_reflectance(self): |
|
114
|
|
|
"""Test the derivation of the reflective part of a 3.7 micron band""" |
|
115
|
|
|
|
|
116
|
|
|
with patch('pyspectral.radiance_tb_conversion.RelativeSpectralResponse') as mymock: |
|
117
|
|
|
instance = mymock.return_value |
|
118
|
|
|
instance.rsr = TEST_RSR |
|
119
|
|
|
instance.unit = '1e-6 m' |
|
120
|
|
|
instance.si_scale = 1e-6 |
|
121
|
|
|
|
|
122
|
|
|
refl37 = Calculator('EOS-Aqua', 'modis', '20') |
|
123
|
|
|
|
|
124
|
|
|
sunz = 80. |
|
125
|
|
|
tb3 = 290. |
|
126
|
|
|
tb4 = 282. |
|
127
|
|
|
refl = refl37.reflectance_from_tbs(sunz, tb3, tb4) |
|
128
|
|
|
self.assertAlmostEqual(refl, 0.251245010648, 6) |
|
129
|
|
|
|
|
130
|
|
|
sunz = 80. |
|
131
|
|
|
tb3 = 295. |
|
132
|
|
|
tb4 = 282. |
|
133
|
|
|
refl = refl37.reflectance_from_tbs(sunz, tb3, tb4) |
|
134
|
|
|
self.assertAlmostEqual(refl, 0.452497961, 6) |
|
135
|
|
|
|
|
136
|
|
|
sunz = 50. |
|
137
|
|
|
tb3 = 300. |
|
138
|
|
|
tb4 = 285. |
|
139
|
|
|
refl = refl37.reflectance_from_tbs(sunz, tb3, tb4) |
|
140
|
|
|
self.assertAlmostEqual(refl, 0.1189217, 6) |
|
141
|
|
|
|
|
142
|
|
|
def tearDown(self): |
|
143
|
|
|
"""Clean up""" |
|
144
|
|
|
pass |
|
145
|
|
|
|
|
146
|
|
|
|
|
147
|
|
|
def suite(): |
|
148
|
|
|
"""The suite for test_reflectance.""" |
|
149
|
|
|
loader = unittest.TestLoader() |
|
150
|
|
|
mysuite = unittest.TestSuite() |
|
151
|
|
|
mysuite.addTest(loader.loadTestsFromTestCase(TestReflectance)) |
|
152
|
|
|
|
|
153
|
|
|
return mysuite |
|
154
|
|
|
|
pytroll /
pyspectral
