A model for altimeter returns from penetrable geophysical media

Robert J. Adams; Gary S. Brown

doi:10.1109/36.718645

A model for altimeter returns from penetrable geophysical media

Robert J. Adams
, Gary S. Brown

Producción científica: Article › revisión exhaustiva

8 Citas (Scopus)

Resumen

The radar altimeter is a well-understood instrument for monitoring the world's oceans. There has been a recent effort to extend altimeter techniques to the study of the world's ice sheets. To this end, several authors have developed average altimeter waveform models that incorporate pulse-penetration effects to varying degrees. In this paper, we extend these models to more adequately account for the effects of surface roughness and subsurface inhomogeneities on the average scattered waveform. This leads to a waveform model that is useful in analyzing altimeter returns obtained over a wider range of geophysical media, such as snow, ice, and foliage, which are characterized by strong subsurface inhomogeneities. Representative results of applying this extended model to airborne altimeter measurements made over various regions of the Greenland ice sheet in September 1991 are provided.

Idioma original	English
Páginas (desde-hasta)	1784-1793
Número de páginas	10
Publicación	IEEE Transactions on Geoscience and Remote Sensing
Volumen	36
N.º	5 PART 2
DOI	https://doi.org/10.1109/36.718645
Estado	Published - 1998

Nota bibliográfica

Funding Information:
Manuscript received February 6, 1998; revised June 12, 1998. This work was supported by the Office of Naval Research’s Sea Ice Accelerated Research Initiative under Grant N00014-93-1-0123.

Financiación

Manuscript received February 6, 1998; revised June 12, 1998. This work was supported by the Office of Naval Research’s Sea Ice Accelerated Research Initiative under Grant N00014-93-1-0123.

Financiadores	Número del financiador
Office of Naval Research	N00014-93-1-0123

ASJC Scopus subject areas

Electrical and Electronic Engineering
General Earth and Planetary Sciences

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title = "A model for altimeter returns from penetrable geophysical media",

abstract = "The radar altimeter is a well-understood instrument for monitoring the world's oceans. There has been a recent effort to extend altimeter techniques to the study of the world's ice sheets. To this end, several authors have developed average altimeter waveform models that incorporate pulse-penetration effects to varying degrees. In this paper, we extend these models to more adequately account for the effects of surface roughness and subsurface inhomogeneities on the average scattered waveform. This leads to a waveform model that is useful in analyzing altimeter returns obtained over a wider range of geophysical media, such as snow, ice, and foliage, which are characterized by strong subsurface inhomogeneities. Representative results of applying this extended model to airborne altimeter measurements made over various regions of the Greenland ice sheet in September 1991 are provided.",

keywords = "Random volume scattering, Remote sensing of snow, Rough surface scattering, Subsurface scattering",

author = "Adams, \{Robert J.\} and Brown, \{Gary S.\}",

note = "Funding Information: Manuscript received February 6, 1998; revised June 12, 1998. This work was supported by the Office of Naval Research{\textquoteright}s Sea Ice Accelerated Research Initiative under Grant N00014-93-1-0123.",

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AU - Adams, Robert J.

AU - Brown, Gary S.

N1 - Funding Information: Manuscript received February 6, 1998; revised June 12, 1998. This work was supported by the Office of Naval Research’s Sea Ice Accelerated Research Initiative under Grant N00014-93-1-0123.

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Y1 - 1998

N2 - The radar altimeter is a well-understood instrument for monitoring the world's oceans. There has been a recent effort to extend altimeter techniques to the study of the world's ice sheets. To this end, several authors have developed average altimeter waveform models that incorporate pulse-penetration effects to varying degrees. In this paper, we extend these models to more adequately account for the effects of surface roughness and subsurface inhomogeneities on the average scattered waveform. This leads to a waveform model that is useful in analyzing altimeter returns obtained over a wider range of geophysical media, such as snow, ice, and foliage, which are characterized by strong subsurface inhomogeneities. Representative results of applying this extended model to airborne altimeter measurements made over various regions of the Greenland ice sheet in September 1991 are provided.

AB - The radar altimeter is a well-understood instrument for monitoring the world's oceans. There has been a recent effort to extend altimeter techniques to the study of the world's ice sheets. To this end, several authors have developed average altimeter waveform models that incorporate pulse-penetration effects to varying degrees. In this paper, we extend these models to more adequately account for the effects of surface roughness and subsurface inhomogeneities on the average scattered waveform. This leads to a waveform model that is useful in analyzing altimeter returns obtained over a wider range of geophysical media, such as snow, ice, and foliage, which are characterized by strong subsurface inhomogeneities. Representative results of applying this extended model to airborne altimeter measurements made over various regions of the Greenland ice sheet in September 1991 are provided.

KW - Random volume scattering

KW - Remote sensing of snow

KW - Rough surface scattering

KW - Subsurface scattering

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JO - IEEE Transactions on Geoscience and Remote Sensing

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IS - 5 PART 2

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A model for altimeter returns from penetrable geophysical media

Resumen

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ASJC Scopus subject areas

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