Zobrazeno 1 - 10
of 148
pro vyhledávání: '"D. Vidal-Madjar"'
Autor:
Valérie Ciarletti, Mehrez Zribi, O. Taconet, M. R. Boussema, D. Vidal-Madjar, S. Le Hégarat-Mascle
Publikováno v:
International Journal of Remote Sensing
International Journal of Remote Sensing, Taylor & Francis, 2003, 24 (6), pp.1335-1352. ⟨10.1080/01431160210146668⟩
International Journal of Remote Sensing, Taylor & Francis, 2003, 24 (6), pp.1335-1352. ⟨10.1080/01431160210146668⟩
In this paper, a simple model is proposed for measuring the vegetation cover over soil surfaces from radar signals acquired in semi-arid regions. In such regions, vegetation is characterized by the presence of clumps which partially cover the soil su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d0f4ab558e7135baa6e06333d4293aa
https://doi.org/10.1080/01431160210146668
https://doi.org/10.1080/01431160210146668
Publikováno v:
International Journal of Remote Sensing. 23:5211-5224
The purpose of this paper is to study the effect of row structures on backscattering by soil surface. A new modelling of periodic row structures is proposed. The Moment method is used to evaluate the effect of rows on backscattering. To check theoret
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0f340433a5c0d93fc27bdbb430a3318
https://doi.org/10.1080/01431160110115762
https://doi.org/10.1080/01431160110115762
Autor:
Etienne Leblois, Catherine Golaz, J. Noilhan, Florence Habets, Emmanuel Ledoux, Eric Martin, Catherine Ottlé, P. Lacarrère, J.-P. Goutorbe, D. Vidal-Madjar
Publikováno v:
Journal of Hydrology. 217:97-118
A macroscale hydrological model including an improved representation of the surface processes is validated at a regional scale using the data set collected during the Hapex-Mobilhy experiment (1986). Using observed atmospheric forcing with a resoluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2db256a34b9927a4704e9a17fbd3e777
https://doi.org/10.1016/s0022-1694(99)00020-7
https://doi.org/10.1016/s0022-1694(99)00020-7
Publikováno v:
Journal of Electromagnetic Waves and Applications. 10:187-209
Agricultural surfaces are complex non-isotropic surfaces presenting a main direction due to the rows in combination with various smaller spatial scales (the clods). The applicability of two recent electromagnetic models, able to take account of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd964ebf46f70be85c852bbd02c52ab3
https://doi.org/10.1163/156939396x00964
https://doi.org/10.1163/156939396x00964
Publikováno v:
Remote Sensing of Environment
Remote Sensing of Environment, Elsevier, 1995, 53, pp.61-68
Remote Sensing of Environment, Elsevier, 1995, 53, pp.61-68
International audience; In this article, the possible use of synthetic-aperture radar (SAR), for measuring the moisture content and surface roughness is analyzed. Data have been acquired on the Melarchez subwatershed during the Orgeval'89 campaign fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af18e7eeeb0e293113b1ece93eaa4c60
https://doi.org/10.1016/0034-4257(94)00113-2
https://doi.org/10.1016/0034-4257(94)00113-2
Autor:
D. Vidal-Madjar, Philippe Olivier, Anne-Laure Cognard, M. Normand, A. Vidal, Sami Louahala, Catherine Ottlé, C. Loumagne
Publikováno v:
Water Resources Research. 31:975-982
One of the possible applications of satellite radar remote sensing is to estimate surface soil moisture. To evaluate the capacity of ERS 1/synthetic aperture radar (SAR), a European Space Agency (ESA) pilot project has been set up. The test site is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8432ddc9bd999302b65cdf1bf2426d9
https://doi.org/10.1029/94wr03390
https://doi.org/10.1029/94wr03390
Publikováno v:
International Journal of Remote Sensing. 16:217-226
The French frequency modulated continuous waves (FMCW) scatterometer ERASME mounted on small helicopter or aircraft has been designed as dualfrequency (C and X bands) and dualpolarization (HH, VV) to investigate simultaneously the vegetation and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::417aa6291936059fa2b6275a10b8cdb9
https://doi.org/10.1080/01431169508954391
https://doi.org/10.1080/01431169508954391
Autor:
D. Vidal-Madjar, Philippe Olivier
Publikováno v:
International Journal of Remote Sensing. 15:1109-1114
This letter describes a technique to evaluate the radiometric quality of distributed target responses extracted from Synthetic Aperture Radar (SAR) data. The approach is original in that it aims to estimate the Equivalent Number of Looks of clustered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e152a901915e64dee7df8e51319014f
https://doi.org/10.1080/01431169408954144
https://doi.org/10.1080/01431169408954144
Publikováno v:
Agricultural and Forest Meteorology. 58:257-283
Surface energy fluxes can be evaluated from remotely sensed data using models describing the transfers between soil, vegetation and atmosphere. To be applied over bare soils and over partial canopies for which the soil evaporation is comparable to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13f9797996742b87d7ea51573fac4200
https://doi.org/10.1016/0168-1923(92)90065-c
https://doi.org/10.1016/0168-1923(92)90065-c
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 30:981-995
The RESSAC radar system, used from aircraft platforms for measuring directional spectra of ocean waves in the gravity domain (wavelengths from 30 to 400 m), is presented. The instrument consists of a C-band (5.35-GHz) FM/CW radar system. The transmit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6198e0a712b9532e52ce21fc0f76ca4b
https://doi.org/10.1109/36.175333
https://doi.org/10.1109/36.175333