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A New Algorithm for Temperature and Spectral Emissivity Retrieval over Active Fires in the TIR Spectral Range (Articolo in rivista)
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- Label
- A New Algorithm for Temperature and Spectral Emissivity Retrieval over Active Fires in the TIR Spectral Range (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Alternative label
A.Barducci, D.Guzzi, P.Marcoionni, I.Pippi (2004)
A New Algorithm for Temperature and Spectral Emissivity Retrieval over Active Fires in the TIR Spectral Range
in IEEE transactions on geoscience and remote sensing
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- A.Barducci, D.Guzzi, P.Marcoionni, I.Pippi (literal)
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- ISI Web of Science (WOS) (literal)
- Titolo
- A New Algorithm for Temperature and Spectral Emissivity Retrieval over Active Fires in the TIR Spectral Range (literal)
- Abstract
- AbstractThe problem of temperature and spectral emissivity
assessment from hyperspectral remotely sensed data is discussed
with reference to monitoring of active fires and hot targets. A new
algorithm, called similar pixel addition, was developed, which allows
us to retrieve the temperature of burning areas by employing
spectral data collected at thermal infrared (TIR) wavelengths. The
new algorithm resolves the uncertainty connected with temperature-
emissivity separation assuming a slow spatial variation of
emissivity, hence reducing the number of unknowns involved in the
inversion of a couple of similar pixels at once. Performance of this
procedure is thoroughly discussed and compared with results from
two other algorithms operating in the TIR and shortwave infrared
spectral ranges. This paper shows results obtained applying the
new algorithm to hyperspectral images gathered by the Multispectral
Infrared and Visible Imaging Spectrometer in Northern Italy
(Alps) over a natural fire that broke out in July 1999. This paper
is completed with a theoretical discussion of the involved topics. (literal)
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