@article{fdi:010046257,
  title = {{E}valuating parameter effects in a {DEM} 'burning' process based on land cover data},
  author = {{G}etirana, {A}ugusto and {B}onnet, {M}arie-{P}aule and {M}artinez, {J}ean-{M}ichel},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ver the last years, various methods regarding the use of digital land cover data to change digital elevation models ({DEM}s) have been reported in the literature. {U}sually, these methods rely on digital river networks ({DRN}s) or digital river and lake networks ({DRLN}s) to force preferential flow directions of pixels composing a {DEM} to get more realistic hydrological information, and reduce the accumulated number of errors in the information acquisition process. {M}ore recently, a new method that takes advantage of spatial distribution of rivers and floodplains derived from classified radar images has been presented. {T}he method is based on a double 'burning' process. {T}he first process uses stream lines to reduce elevations in the {DEM} (traditional stream burning approach-{SB} approach) and the second uses the floodplains to create valleys forcing the drainage of these areas to the main river. {T}his approach, referred to as floodplain burning approach ({FB} approach), was applied to a basin in the {A}mazon basin. {I}t greatly improved the results compared to the {SB} approach. {H}owever, this method requires the calibration of various parameters to represent accurately land cover types. {T}his study proposes a comprehensive evaluation of the influence of these parameters on the {DEM}-based hydrological information acquisition and on the original {DEM}. {C}onsequently, a method of parameters set selection is provided. {T}he method was applied to a sub-basin of the {N}egro {R}iver basin in {A}mazonia. {S}everal parameter combinations were evaluated in the watershed delineation process. {P}articular attention was paid to whether those parameters with a greater impact on {DEM} yielded better results in the case study. {H}owever, these {DEM} changes can be reduced with the knowledge of vegetation's heights, the vegetation having a substantial effect on remote acquisition of {DEM}s in tropical forests.},
  keywords = {digital elevation model ; floodplain ; watershed delineation},
  booktitle = {},
  journal = {{H}ydrological {P}rocesses},
  volume = {23},
  numero = {16},
  pages = {2316--2325},
  ISSN = {0885-6087},
  year = {2009},
  DOI = {10.1002/hyp.7303},
  URL = {https://www.documentation.ird.fr/hor/fdi:010046257},
}