Remote sensing of land surface temperature
description
Transcript of Remote sensing of land surface temperature
![Page 1: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/1.jpg)
Remote sensing of land surface temperature
Lecture 8
![Page 2: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/2.jpg)
Thermal infrared of EM spectrum
0.7 m
3.0 m
100 m
All objects have a temperature above absolute zero (0 K) emit EM energy (in 3.0-100 µm). Human being has normal
98.6 ºF (37 ºC) Our eyes are only sensitive to
visible energy (0.4-0.7 µm). Human sense thermal energy through touch. while detectors (sensors) are sensitive to all EM spectrum.
All objects (vegetation, soil, rock, water, concrete, etc) selectively absorb solar short-wavelength energy and radiate thermal infrared energy.
Details about thermal remote sensing refers to another lectureFor this lecture and lab, we focus on MODIS LST processing and application
![Page 3: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/3.jpg)
Brightness temperature, and physical (surface) temperature
Through radiance recorded by a remote sensor, if we use the Planck equation, we can get a temperature, which we call brightness temperature Tb, which is less than the real physical (or surface) temperature T.
)1(2),(
)1(2),( )/5
2
)/5
2
kThckThcb e
hcTBe
hcTLb
)1ln( / bTkhcekhcT
h, Planck’s constant =6.626 x 10-34 Ws2
T, Kelvin (K)c, 3 x 108 m/sk, Boltzmann’s constant=1.38 x 10-23 Ws/K
L or B, radiance (Wm-2μm-1)c1=2πhc2=3.74 x 10-16 Wm2
c2=ch/k=0.0144 mK
![Page 4: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/4.jpg)
MODIS land surface temperature and emissivity product led by Dr. Wan
http://www.icess.ucsb.edu/modis/modis-lst.html
Wan et al. 2002
![Page 5: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/5.jpg)
The accuracy of temperature is better than 1 K, Wan (2008)
![Page 6: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/6.jpg)
![Page 7: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/7.jpg)
![Page 8: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/8.jpg)
![Page 9: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/9.jpg)
288289290291292293294295296297
0 20 40 60 80 100 120 140
Distance (pixel)
T (K
)
X Profile Y Profile NW-SE NE-SW
Xie and Ytuarte, 2005
Urban Heat Island of San Antonio downtown area detected by MODIS temperature product1:30 am, July 15, 2004
![Page 10: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/10.jpg)
Dallas-Fort Worth Houston
El Paso/Juarez San Antonio
![Page 11: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/11.jpg)
San Antonio Terra Day
285
290
295
300
305
310
315
320
B
and 1
B
and 8
Ban
d 17
Ban
d 23
Ban
d 29
Ban
d 43
Ban
d 49
Ban
d 56
Ban
d 64
Ban
d 74
Ban
d 80
Ban
d 86
Ban
d 93
Ban
d 102
Ban
d 108
Ban
d 114
Ban
d 121
Ban
d 129
Ban
d 135
Ban
d 141
Ban
d 150
Ban
d 158
Ban
d 166
Ban
d 182
Ban
d 188
Ban
d 194
Ban
d 201
Ban
d 210
Ban
d 216
Ban
d 222
Ban
d 228
Ban
d 234
Ban
d 242
Ban
d 249
Tem
pera
ture
DowntownInside 410Inside 1604Outside 1604
San Antonio Aqua Day
289
294
299
304
309
314
319
B
and 1
B
and 6
Ban
d 11
Ban
d 16
Ban
d 21
Ban
d 26
Ban
d 31
Ban
d 36
Ban
d 41
Ban
d 46
Ban
d 51
Ban
d 56
Ban
d 61
Ban
d 66
Ban
d 71
Ban
d 76
Ban
d 81
Ban
d 86
Ban
d 91
Ban
d 96
Ban
d 101
Ban
d 106
Ban
d 111
Ban
d 116
Ban
d 121
Ban
d 126
Ban
d 131
Ban
d 136
Ban
d 141
Ban
d 146
Ban
d 151
Ban
d 156
Ban
d 161
Ban
d 166
Tem
pera
ture
DowntownInside 410Inside 1604Oustide 1604
10:30 am
1:30 pm
San Antonio
2000-2008
2002-2008
![Page 12: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/12.jpg)
San Antonio Terra Night
270
275
280
285
290
295
300
305
B
and 2
Ban
d 11
Ban
d 20
Ban
d 29
Ban
d 38
Ban
d 47
Ban
d 56
Ban
d 65
Ban
d 74
Ban
d 83
Ban
d 92
Ban
d 101
Ban
d 110
Ban
d 119
Ban
d 128
Ban
d 137
Ban
d 146
Ban
d 155
Ban
d 164
Ban
d 174
Ban
d 183
Ban
d 192
Ban
d 201
Ban
d 211
Ban
d 220
Ban
d 229
Ban
d 238
Ban
d 247
Ban
d 256
Ban
d 265
Ban
d 274
Ban
d 284
Ban
d 293
Ban
d 302
Ban
d 311
Ban
d 320
Tem
pera
ture
DowntownInside 410Inside 1604Outside 160410:30 pm
1:30 amSan Antonio Aqua Night
270
275
280
285
290
295
300
B
and 1
B
and 6
Ban
d 11
Ban
d 16
Ban
d 21
Ban
d 26
Ban
d 31
Ban
d 38
Ban
d 43
Ban
d 48
Ban
d 53
Ban
d 59
Ban
d 65
Ban
d 70
Ban
d 75
Ban
d 80
Ban
d 86
Ban
d 91
Ban
d 96
Ban
d 101
Ban
d 106
Ban
d 111
Ban
d 116
Ban
d 121
Ban
d 126
Ban
d 131
Ban
d 136
Ban
d 142
Ban
d 147
Ban
d 152
Ban
d 160
Ban
d 165
Ban
d 170
Ban
d 175
Ban
d 180
Ban
d 186
Ban
d 192
Tem
pera
ture
DowntownInside 410Inside 1604Outside 1604
San Antonio
2000-2008
2002-2008
![Page 13: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/13.jpg)
Black areas are no date, due to cloud cover. So this image should not use
![Page 14: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/14.jpg)
The Delaunay triangulation method is available under ENVI, at Topographic/Replace Bad Values
![Page 15: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/15.jpg)
David Prado thesis, 2010
![Page 16: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/16.jpg)
![Page 17: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/17.jpg)
![Page 18: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/18.jpg)
![Page 19: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/19.jpg)
![Page 20: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/20.jpg)
![Page 21: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/21.jpg)
![Page 22: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/22.jpg)
![Page 23: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/23.jpg)
Source: Jeff Dozier
![Page 24: Remote sensing of land surface temperature](https://reader036.fdocuments.net/reader036/viewer/2022062501/56816835550346895dddea9f/html5/thumbnails/24.jpg)
Active fire detection:MODIS fire and thermal anomalies products
Image caption: Fires in the Bahamas, Florida and Cuba (03 April 2004, 18:30 UTC) identified using MODIS Aqua and outlined in red on the MODIS 1km corrected reflectance product
http://modis-fire.gsfc.nasa.gov/index.asp