@article{fdi:010087391,
  title = {{A} satellite image-based method for estimating rates of mud bank migration, {F}rench {G}uiana, {S}outh {A}merica},
  author = {{G}ardel, {A}ntoine and {G}ratiot, {N}icolas},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he muddy {G}uyanas coastline in {S}outh {A}merica experiences significant short-term change involving alternations of accretion and erosion as a result of the influence of mud from the {A}mazon {R}iver. {I}n {F}rench {G}uiana, the dynamic changes due to mud banks permanently migrating alongshore have a considerable impact on both coastal ecology and economic activities. {A}s a result, monitoring of these mud banks constitutes an important coastal management issue. {I}n this article, focus is placed on the development of a method for the monitoring mud bank migration rates since 1986 between the coastal cities of {C}ayenne and {K}ourou, spaced 60 km apart and using for the first time high temporal resolution satellite images rather than aerial photographs. {T}o achieve this, 16 satellite pour l'observation de la terre ({SPOT}) images and one {L}andsat image covering the period 1986-2002 were acquired and integrated in a geographical information system ({GIS}). {B}ecause of tidal range variation on this mesotidal coast, mud bank characteristics cannot be objectively quantified using classical methods. {M}athematical processing of the satellite imagery data, including correction for tides, was performed to obtain a set of coherent data for analysis of parts of the mud bank associated with intertidal mudflat development, from which quantification rates of mud bank migration becomes feasible. {R}ates of long shore migration of the mud bank recorded up to 2002 are highly variable. {T}he intertidal part of the bank has slowed down in the past years, resulting in a cross-shore extension of the bank. {T}his slowdown occurred following a rate of migration much higher than those reported in the literature. {S}easonal events are also recorded between 2001 and 2002. {T}he variability in rates of migration deduced from the method reported in this study corroborates a pattern reported from earlier studies in {G}uyana, {S}urinam, and {F}rench {G}uiana based on more traditional methods' notably aerial photographs. {T}his variability is tentatively attributed to changes in wind intensity and to local environmental parameters, such as coastline orientation, and the occurrence river estuary outflow and bedrock headlands.},
  keywords = {satellite images ; mud bank migration ; {A}mazon ; {F}rench {G}uiana ; {GUYANE} {FRANCAISE}},
  booktitle = {},
  journal = {{J}ournal of {C}oastal {R}esearch},
  volume = {21},
  numero = {4},
  pages = {720--728},
  ISSN = {0749-0208},
  year = {2005},
  DOI = {10.2112/03-0100.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087391},
}