Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1109/TGRS.2003.813275 |
Subsurface imaging in south-central Egypt using low-frequency radar: Bir Safsaf revisited | |
Paillou, P; Grandjean, G; Baghdadi, N; Heggy, E; August-Bernex, T; Achache, J | |
通讯作者 | Paillou, P |
会议名称 | 3rd International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data for Land Applications |
会议日期 | SEP 11-14, 2001 |
会议地点 | SHEFFIELD, ENGLAND |
英文摘要 | We present the capabilities of low-frequency radar systems to sound the subsurface for a site located in south-central Egypt, the Bir Safsaf region. This site was already intensively studied since the SIR-A and SIR-B orbital radars revealed buried paleodrainage channels. Our approach is based on the coupling between two complementary radar techniques: the orbital synthetic aperture radar (SAR) in C and L bands (5.3 and 1.25 GHz) for imaging large-scale subsurface structures, and the ground-penetrating radar (GPR) at 500 and 900 MHz for sounding the soil at a local scale. We show that the total backscattered power computed from L-band SAR and 900-MHz GPR profiles can be correlated, and we combined both data to derive the geological structure of the subsurface. GPR data provide information on the geometry of the buried scatterers and layers, while the analysis of polarimetric SAR data provides information on the distribution of rocks in the sedimentary layers and at the interface between these layers. The analysis of 500-MHz GPR data revealed some deeper structures that should be detected by lower frequency SARs, such as a P-band system. |
英文关键词 | Egyptian desert ground-penetrating radar imaging radar paleohydrology subsurface |
来源出版物 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING |
ISSN | 0196-2892 |
EISSN | 1558-0644 |
出版年 | 2003 |
卷号 | 41 |
期号 | 7 |
页码 | 1672-1684 |
出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | France;Egypt |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000184819900016 |
WOS关键词 | EASTERN SAHARA ; SAND ; SAR ; ATTENUATION ; PENETRATION ; REGIONS ; DESERT |
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 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/294339 |
作者单位 | (1)Observ Bordeaux, F-33270 Floirac, France;(2)Bur Rech Geol & Minieres, F-45060 Orleans, France;(3)Cairo Univ, Giza, Egypt;(4)European Space Agcy, F-75739 Paris 15, France |
推荐引用方式 GB/T 7714 | Paillou, P,Grandjean, G,Baghdadi, N,et al. Subsurface imaging in south-central Egypt using low-frequency radar: Bir Safsaf revisited[C]:IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC,2003:1672-1684. |
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