@article{fdi:010072092,
  title = {{R}emote sensing of drylands : when soils come into the picture},
  author = {{E}scadafal, {R}ichard},
  editor = {},
  language = {{ENG}},
  abstract = {{A}mong the striking features specific to drylands is the discontinuous vegetation cover, discontinuous in space (e.g. steppes) and/or in time (e.g. dry savannas). {S}oils are more exposed than in any other environment, as a result they are prone to erosion, particularly by wind. {A} second consequence is soils are an important component of the land surface viewed by satellite sensors, more and more dominant the dryer the climate. {W}hereas optical properties of vegetation are well studied and widely used in satellite monitoring of the biosphere (i.e. vegetation indices), soil surface features are less known and rarely monitored. {I}n an attempt to fill this gap, this short review allows to distinguish biological and mineralogical characteristics. {S}oil color appears to be a major parameter of the drylands soils optical properties, as illustrated by examples in the {S}ahara. {P}reviously explored causes of "soil noise" in vegetation indices are confirmed as well as the way to correct it. {S}trategies for optimal use of optical remote sensing of drylands taking into account the soil surface are discussed in conclusion.},
  keywords = {{TELEDETECTION} {SPATIALE} ; {IMAGE} {SATELLITE} ; {SURFACE} {DU} {SOL} ; {INDICE} {DE} {VEGETATION} ; {DESERTIFICATION} ; {GESTION} {DE} {L}'{ENVIRONNEMENT} ; {SAHARA}},
  booktitle = {},
  journal = {{C}i{\^e}ncia e {T}rópico},
  volume = {41},
  numero = {2},
  pages = {33--50},
  ISSN = {0304-2685},
  year = {2017},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072092},
}