@incollection{fdi:010054778,
  title = {{T}he use of hyperspectral imagery for digital soil mapping in {M}editerranean areas},
  author = {{L}agacherie, {P}. and {G}omez, {C}{\'e}cile and {B}ailly, {J}.{S}. and {B}aret, {F}. and {C}oulouma, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}yperspectral imagery is considered as a promising source of data to overcome the lack of soil information that often hamper digital soil mapping. {W}e have tested it in the vineyard plain of {L}anguedoc (southern {F}rance) using an 5×5 m resolution {HYMAP} image and 52 calibration-validation points. {S}atisfactory predictions of clay content and calcium carbonate ({C}a{CO}3) content were first obtained from {HYMAP} spectra over bare soils, partial least-squares regression performing better than continuum removal technique. {T}hese predictions were however less precise than using laboratory spectra. {A}n examination of the possible factors that could explain this decrease showed that calibration uncertainties of the {HYMAP} sensor and of atmospheric effects were largely predominant. {S}econdly, since the {HYMAP} image was largely covered by vegetation with few pure bare soil pixels, an interpolation-aggregation procedure was proposed to obtain a 100×100 m digital soil map of the whole study area from a set of scattered bare soil fields with hyperspectral soil characterization. {I}nterpolation was performed by a conditional simulation algorithm to estimate the within pixel soil pattern parameters. {V}alidation results showed that satisfactory estimates of local means can be obtained whereas the variations of local variances were only partly represented.},
  keywords = {{SOL} ; {CARTOGRAPHIE} ; {CARTE} {PEDOLOGIQUE} ; {TELEDETECTION} ; {IMAGE} {SATELLITE} ; {SPECTROSCOPIE} ; {SPECTROMETRIE} {INFRAROUGE} ; {ANALYSE} {SPECTRALE} ; {REFLECTANCE} ; {ARGILE} ; {CARBONATE} ; {CALCIUM} ; {FRANCE} ; {LANGUEDOC} {ROUSSILLON} ; {ZONE} {MEDITERRANEENNE}},
  booktitle = {{D}igital soil mapping : bridging research, environmental application and operation},
  numero = {2},
  pages = {93--102},
  address = {{D}ordrecht},
  publisher = {{S}pringer},
  series = {{P}rogress in {S}oil {S}cience},
  year = {2010},
  DOI = {10.1007/978-90-481-8863-5_8},
  ISBN = {978-90-481-8862-8},
  URL = {https://www.documentation.ird.fr/hor/fdi:010054778},
}