A first look at band-differenced angular signatures for cloud detection from MISR

Larry Di Girolamo; Michael J. Wilson

doi:10.1109/TGRS.2003.815659

A first look at band-differenced angular signatures for cloud detection from MISR

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Abstract

We present the first observational study on the potential of band-differenced angular signatures for cloud detection. A band-differenced angular signature is the reflectance difference between the blue and near-infrared channels examined as a function of view angle, and it is observed in this study from the Multi-angle Imaging SpectroRadiometer (MISR). The observed band-differenced angular signatures over a variety of scene types qualitatively compare well with previously published theoretical predictions. Examples of cloud detection in polar and desert regions using band-differenced angular signatures from MISR are shown to highlight its contribution to cloud detection in areas where traditional spectral techniques tend to perform poorly.

Original language	English (US)
Pages (from-to)	1730-1734
Number of pages	5
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	41
Issue number	7 PART II
DOIs	https://doi.org/10.1109/TGRS.2003.815659
State	Published - Jul 2003

Keywords

Angular signature
Cloud detection
Multi-angle Imaging SpectroRadiometer (MISR)
Polar

ASJC Scopus subject areas

Electrical and Electronic Engineering
Earth and Planetary Sciences(all)

Online availability

10.1109/TGRS.2003.815659

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title = "A first look at band-differenced angular signatures for cloud detection from MISR",

abstract = "We present the first observational study on the potential of band-differenced angular signatures for cloud detection. A band-differenced angular signature is the reflectance difference between the blue and near-infrared channels examined as a function of view angle, and it is observed in this study from the Multi-angle Imaging SpectroRadiometer (MISR). The observed band-differenced angular signatures over a variety of scene types qualitatively compare well with previously published theoretical predictions. Examples of cloud detection in polar and desert regions using band-differenced angular signatures from MISR are shown to highlight its contribution to cloud detection in areas where traditional spectral techniques tend to perform poorly.",

keywords = "Angular signature, Cloud detection, Multi-angle Imaging SpectroRadiometer (MISR), Polar",

author = "{Di Girolamo}, Larry and Wilson, {Michael J.}",

note = "Funding Information: Manuscript received February 16, 2003; revised May 10, 2003. This work was supported in part by the Jet Propulsion Laboratory, California Institute of Technology under Contract 1221756 and by the National Aeronautics and Space Administration under Contract ESSF/02-0000-0212.",

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AU - Wilson, Michael J.

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N2 - We present the first observational study on the potential of band-differenced angular signatures for cloud detection. A band-differenced angular signature is the reflectance difference between the blue and near-infrared channels examined as a function of view angle, and it is observed in this study from the Multi-angle Imaging SpectroRadiometer (MISR). The observed band-differenced angular signatures over a variety of scene types qualitatively compare well with previously published theoretical predictions. Examples of cloud detection in polar and desert regions using band-differenced angular signatures from MISR are shown to highlight its contribution to cloud detection in areas where traditional spectral techniques tend to perform poorly.

AB - We present the first observational study on the potential of band-differenced angular signatures for cloud detection. A band-differenced angular signature is the reflectance difference between the blue and near-infrared channels examined as a function of view angle, and it is observed in this study from the Multi-angle Imaging SpectroRadiometer (MISR). The observed band-differenced angular signatures over a variety of scene types qualitatively compare well with previously published theoretical predictions. Examples of cloud detection in polar and desert regions using band-differenced angular signatures from MISR are shown to highlight its contribution to cloud detection in areas where traditional spectral techniques tend to perform poorly.

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A first look at band-differenced angular signatures for cloud detection from MISR

Abstract

Keywords

ASJC Scopus subject areas

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