Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1109/TGRS.2019.2908170 |
Observed Relationship Between BRF Spectral-Continuum Variance and Macroscopic Roughness of Clay Sediments | |
Badura, Gregory1,2; Bachmann, Charles M.1; Harms, Justin1,3; Abelev, Andrei4 | |
通讯作者 | Badura, Gregory |
来源期刊 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
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ISSN | 0196-2892 |
EISSN | 1558-0644 |
出版年 | 2019 |
卷号 | 57期号:9页码:6726-6740 |
英文摘要 | Spectral data offer a means of estimating the critical parameters of sediments, including sediment composition, moisture content, surface roughness, density, and grain-size distribution. Macroscopic surface roughness in particular has a substantial impact on the structure of the bidirectional reflectance factor (BRF) and the angular distribution of scattered light. In developing the models to invert the properties of the surface beyond just surface composition, roughness must also be accounted for in order to achieve reliable and repeatable results. This paper outlines laboratory studies in which the BRF and surface digital elevation measurements were performed on dry clay sediments. The results were used to explore the suitability of various roughness metrics to account for the radiometric effect of surface roughness. The metrics that are specifically addressed in this paper include random roughness and sill variance. Relative accuracy and tradeoffs between these metrics are described. We find that spectral variability, especially near spectral absorption features, correlates strongly with the quantified measures of surface roughness. We also find that spectral variability is sensitive to the sensor fore-optic size. The results suggest that roughness parameters might be directly determined from the spectrum itself. The relationship between spectral variability and macroscopic surface roughness was particularly strong in some broad spectral ranges of the visible, near infrared, and shortwave infrared, including the near-infrared region between 600 and 850 nm. |
英文关键词 | Bidirectional reflectance factor (BRF) digital elevation model (DEM) goniometer of the Rochester Institute of Technology-two (GRIT-T) roughness sediment |
类型 | Article |
语种 | 英语 |
国家 | USA |
开放获取类型 | Bronze |
收录类别 | SCI-E |
WOS记录号 | WOS:000484209000034 |
WOS关键词 | BIDIRECTIONAL REFLECTANCE ; SURFACE-ROUGHNESS ; PARTICLE-SIZE ; SOIL ; SPECTROSCOPY ; ILLUMINATION ; DESERT ; DEPTH ; SCALE |
WOS类目 | Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology |
WOS研究方向 | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/216255 |
作者单位 | 1.Rochester Inst Technol, Chester F Carlson Ctr Imaging Sci, Rochester, NY 14623 USA; 2.GTRI, Atlanta, GA 30318 USA; 3.US Air Force, Washington, DC USA; 4.US Naval Res Lab, Marine Geosci Div, Washington, DC 20375 USA |
推荐引用方式 GB/T 7714 | Badura, Gregory,Bachmann, Charles M.,Harms, Justin,et al. Observed Relationship Between BRF Spectral-Continuum Variance and Macroscopic Roughness of Clay Sediments[J],2019,57(9):6726-6740. |
APA | Badura, Gregory,Bachmann, Charles M.,Harms, Justin,&Abelev, Andrei.(2019).Observed Relationship Between BRF Spectral-Continuum Variance and Macroscopic Roughness of Clay Sediments.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,57(9),6726-6740. |
MLA | Badura, Gregory,et al."Observed Relationship Between BRF Spectral-Continuum Variance and Macroscopic Roughness of Clay Sediments".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 57.9(2019):6726-6740. |
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