@article{fdi:010063891,
  title = {{P}otential of {X}-band {T}erra{SAR}-{X} and {COSMO}-{S}ky{M}ed {SAR} data for the assessment of physical soil parameters},
  author = {{G}orrab, {A}. and {Z}ribi, {M}. and {B}aghdadi, {N}. and {M}ougenot, {B}ernard and {C}habaane, {Z}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this paper is to analyze the potential of {X}-band {SAR} measurements ({COSMO}-{S}ky{M}ed and {T}erra{SAR}-{X}) made over bare soils for the estimation of soil moisture and surface geometry parameters at a semi-arid site in {T}unisia ({N}orth {A}frica). {R}adar signals acquired with different configurations ({HH} and {VV} polarizations, incidence angles of 26 degrees and 36 degrees) are statistically compared with ground measurements (soil moisture and roughness parameters). {T}he radar measurements are found to be highly sensitive to the various soil parameters of interest. {A} linear relationship is determined for the radar signals as a function of volumetric soil moisture, and a logarithmic correlation is observed between the radar signals and three surface roughness parameters: the root mean square height ({H}rms), the parameter {Z}s = {H}rms(2)/l (where l is the correlation length) and the parameter {Z}g = {H}rms x ({H}rms/l)(alpha) (where a is the power of the surface height correlation function). {T}he highest dynamic sensitivity is observed for {Z}g at high incidence angles. {F}inally, the performance of different physical and semi-empirical backscattering models ({IEM}, {B}aghdadi-calibrated {IEM} and {D}ubois models) is compared with {SAR} measurements. {T}he results provide an indication of the limits of validity of the {IEM} and {D}ubois models, for various radar configurations and roughness conditions. {C}onsiderable improvements in the {IEM} model performance are observed using the {B}aghdadi-calibrated version of this model.},
  keywords = {soil moisture ; soil roughness ; {T}erra{SAR}-{X} ; {COSMO}-{S}ky{M}ed ; {SAR} ; {IEM} ; {B}aghdadi-calibrated {IEM} model ; {D}ubois model ; {TUNISIE}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {7},
  numero = {1},
  pages = {747--766},
  ISSN = {2072-4292},
  year = {2015},
  DOI = {10.3390/rs70100747},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063891},
}