@article{fdi:010083126,
  title = {{S}oil moisture and vegetation optical depth retrievals over heterogeneous scenes using {LEWIS} {L}-band radiometer},
  author = {{B}arr{\'e}e, {M}. and {M}ialon, {A}. and {P}ellarin, {T}. and {P}arrens, {M}. and {B}iron, {R}omain and {L}emaitre, {F}. and {G}ascoin, {S}. and {K}err, {Y}. {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}oil {M}oisture and {O}cean {S}alinity ({SMOS}) satellite has been providing global data for more than 11 years. {T}he algorithm to retrieve surface soil moisture ({SM}) and vegetation optical depth ({VOD}) from {B}rightness {T}emperatures ({TB}) has constantly evolved as our understanding of the instrument and of the responses to various ecosystems increased. {T}he evolution of the radiative transfer modelling used in the inversion process is in part based upon ground measurements done on experimental sites. {W}e present the particular case of an {L}-band radiometer placed on top of a 800- meter-high cliff. {T}his design allows us to study large and various scenes when compared to classical experiments where a radiometer is placed 10-20 m above a surface. {W}ith our set up, the footprints cover areas larger than 300 m in diameter, covering thus several land use types and the footprint can be directed towards different dominant land classes (forest, crops, urban etc...). {T}his paper presents the whole set up consisting of in situ measurements (soil moisture and surface temperatures) and {L}-band radiometry acquired by the {LEWIS} instrument at high incidence angles. {W}e perform {SM}/{VOD} retrievals from brightness temperatures using various configurations which are compared to the in situ observations. {W}e test in particular a 2-{VOD} retrieval approach that consists in deriving one {SM} for the entire scene but two {VOD}, one for agricultural/low vegetation and a {VOD} for the forest parts, which improves the performance of the {SM}/{VOD} retrievals.},
  keywords = {{SMOS} ; {L}-band ; {R}adiometer ; {S}urface soil moisture ; {VOD} ; {C}al/{V}al ; {FRANCE} ; {ALPES}},
  booktitle = {},
  journal = {{I}nternational {J}ournal of {A}pplied {E}arth {O}bservation and {G}eoinformation},
  volume = {102},
  numero = {},
  pages = {102424 [9 p.]},
  ISSN = {1569-8432},
  year = {2021},
  DOI = {10.1016/j.jag.2021.102424},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083126},
}