@article{fdi:010065279,
  title = {{R}etrieval of both soil moisture and texture using {T}erra{SAR}-{X} images},
  author = {{G}orrab, {A}. and {Z}ribi, {M}. and {B}aghdadi, {N}. and {M}ougenot, {B}ernard and {F}anise, {P}ascal and {C}habaane, {Z}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this paper is to propose a methodology combing multi-temporal {X}-band {SAR} images ({T}erra{SAR}-{X}) with continuous ground thetaprobe measurements, for the retrieval of surface soil moisture and texture at a high spatial resolution. {O}ur analysis is based on seven radar images acquired at a 36 degrees incidence angle in the {HH} polarization, over a semi-arid site in {T}unisia ({N}orth {A}frica). {T}he soil moisture estimations are based on an empirical change detection approach using {T}erra{SAR}-{X} data and ground auxiliary thetaprobe network measurements. {T}wo assumptions were tested: (1) roughness variations during the three-month radar acquisition campaigns were not accounted for; (2) a simple correction for temporal variations in roughness was included. {T}he results reveal a small improvement in the estimation of soil moisture when a correction for temporal variations in roughness is introduced. {B}y considering the estimated temporal dynamics of soil moisture, a methodology is proposed for the retrieval of clay and sand content (expressed as percentages) in soil. {T}wo empirical relationships were established between the mean moisture values retrieved from the seven acquired radar images and the two soil texture components over 36 test fields. {V}alidation of the proposed approach was carried out over a second set of 34 fields, showing that highly accurate clay estimations can be achieved. {M}aps of soil moisture, clay and sand percentages at the studied site are derived.},
  keywords = {{TUNISIE}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {7},
  numero = {8},
  pages = {10098--10116},
  ISSN = {2072-4292},
  year = {2015},
  DOI = {10.3390/rs70810098},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065279},
}