@article{fdi:010079035,
  title = {{M}apping rainstorm erosion associated with an individual storm from {I}n{SAR} coherence loss validated by field evidence for the {A}tacama {D}esert},
  author = {{C}abre, {A}. and {R}{\'e}my, {D}ominique and {A}guilar, {G}. and {C}arretier, {S}{\'e}bastien and {R}iquelme, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}xtreme high-magnitude and low-frequency storm events in arid zones provide the necessary runoff to entrain sediments from source areas and therefore dictate the linkages between hillslopes and channels. {N}evertheless, the erosive impact of large storms remains difficult to predict. {M}ost of the uncertainty lies in the lack of topographic change maps associated with single hydro-meteorological events. {C}onsequently, event-based erosion models are poorly constrained and their extrapolation over long time periods remains uncertain. {I}n this study, a 15-month {S}entinel-1{A} coherence time series, optical and field data are used to map the spatial patterns of erosion after the 5-day storm occurred on {M}arch 2015, in the {A}tacama {D}esert. {T}he coherence change detection ({CCD}) analysis suggests that temporal loss of coherence is related to variations in soil moisture, while permanent loss of coherence is related to modification of soil texture by erosion and sedimentation. {I}mportantly, permanent loss of coherence is more apparent on gentle rather than steeper slopes, likely reflecting differences in regolith cover and thickness. {T}hese findings can contradict the landscape models predicting higher erosion on steeper hillslopes. {T}he {CCD} technique represents a promising tool for analysing and modelling sediment connectivity in arid areas, giving a clear picture of the relation between sediment sources and sink pathways.},
  keywords = {erosion ; coherence loss ; flash floods ; sediment connectivity ; {I}n{SAR} ; {CHILI} ; {ATACAMA} ; {ATACAMA} {DESERT}},
  booktitle = {},
  journal = {{E}arth {S}urface {P}rocesses and {L}andforms},
  volume = {45},
  numero = {9},
  pages = {2091--2106},
  ISSN = {0197-9337},
  year = {2020},
  DOI = {10.1002/esp.4868},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079035},
}