The impact of the structure and composition of shrub-coppice dune landscapes on MASTER reflectance anisotropy

Mark Chopping, A. Schmugge, J. Ritchie, W. Kustas

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study assesses the effects of physical structure and composition of shrub-coppice dune landscapes on anisotropy in the NASA MODISASTER Airborne Simulator (MASTER) solar channels, and investigates the viability of simulating multi-angular data sets using off-nadir airborne imaging radiometry from a single overpass by means of data segmentation. Segmentation data are plant density and cover and spectral measures derived from high-resolution aerial photography and classified Landsat 7 Enhanced Thematic Mapper imagery. The directional signal contributes a variation of 5-10% in reflectance, necessitating angular corrections. For most areas the signal appears to differ only slightly with changes in landscape structure and composition because the view/illumination geometry is poor and reflectance is dominated by bright soils. Further work is required to determine whether simple models would be adequate for angular corrections.

Original languageEnglish
Pages (from-to)162-167
Number of pages6
JournalIAHS-AISH Publication
Issue number267
StatePublished - 1 Dec 2000

Fingerprint

coppice
segmentation
simulator
dune
reflectance
anisotropy
shrub
landscape structure
nadir
aerial photography
Landsat
viability
imagery
geometry
soil
effect

Keywords

  • Anisotropy
  • Dunes
  • Landscape
  • Mesquite
  • Multiple view angle
  • New Mexico
  • Structure

Cite this

@article{748b55c40ffd40b48b498d0ecf6337f8,
title = "The impact of the structure and composition of shrub-coppice dune landscapes on MASTER reflectance anisotropy",
abstract = "This study assesses the effects of physical structure and composition of shrub-coppice dune landscapes on anisotropy in the NASA MODISASTER Airborne Simulator (MASTER) solar channels, and investigates the viability of simulating multi-angular data sets using off-nadir airborne imaging radiometry from a single overpass by means of data segmentation. Segmentation data are plant density and cover and spectral measures derived from high-resolution aerial photography and classified Landsat 7 Enhanced Thematic Mapper imagery. The directional signal contributes a variation of 5-10{\%} in reflectance, necessitating angular corrections. For most areas the signal appears to differ only slightly with changes in landscape structure and composition because the view/illumination geometry is poor and reflectance is dominated by bright soils. Further work is required to determine whether simple models would be adequate for angular corrections.",
keywords = "Anisotropy, Dunes, Landscape, Mesquite, Multiple view angle, New Mexico, Structure",
author = "Mark Chopping and A. Schmugge and J. Ritchie and W. Kustas",
year = "2000",
month = "12",
day = "1",
language = "English",
pages = "162--167",
journal = "IAHS-AISH Publication",
issn = "0144-7815",
number = "267",

}

The impact of the structure and composition of shrub-coppice dune landscapes on MASTER reflectance anisotropy. / Chopping, Mark; Schmugge, A.; Ritchie, J.; Kustas, W.

In: IAHS-AISH Publication, No. 267, 01.12.2000, p. 162-167.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The impact of the structure and composition of shrub-coppice dune landscapes on MASTER reflectance anisotropy

AU - Chopping, Mark

AU - Schmugge, A.

AU - Ritchie, J.

AU - Kustas, W.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - This study assesses the effects of physical structure and composition of shrub-coppice dune landscapes on anisotropy in the NASA MODISASTER Airborne Simulator (MASTER) solar channels, and investigates the viability of simulating multi-angular data sets using off-nadir airborne imaging radiometry from a single overpass by means of data segmentation. Segmentation data are plant density and cover and spectral measures derived from high-resolution aerial photography and classified Landsat 7 Enhanced Thematic Mapper imagery. The directional signal contributes a variation of 5-10% in reflectance, necessitating angular corrections. For most areas the signal appears to differ only slightly with changes in landscape structure and composition because the view/illumination geometry is poor and reflectance is dominated by bright soils. Further work is required to determine whether simple models would be adequate for angular corrections.

AB - This study assesses the effects of physical structure and composition of shrub-coppice dune landscapes on anisotropy in the NASA MODISASTER Airborne Simulator (MASTER) solar channels, and investigates the viability of simulating multi-angular data sets using off-nadir airborne imaging radiometry from a single overpass by means of data segmentation. Segmentation data are plant density and cover and spectral measures derived from high-resolution aerial photography and classified Landsat 7 Enhanced Thematic Mapper imagery. The directional signal contributes a variation of 5-10% in reflectance, necessitating angular corrections. For most areas the signal appears to differ only slightly with changes in landscape structure and composition because the view/illumination geometry is poor and reflectance is dominated by bright soils. Further work is required to determine whether simple models would be adequate for angular corrections.

KW - Anisotropy

KW - Dunes

KW - Landscape

KW - Mesquite

KW - Multiple view angle

KW - New Mexico

KW - Structure

UR - http://www.scopus.com/inward/record.url?scp=0034426862&partnerID=8YFLogxK

M3 - Article

SP - 162

EP - 167

JO - IAHS-AISH Publication

JF - IAHS-AISH Publication

SN - 0144-7815

IS - 267

ER -