@article{fdi:010076485,
  title = {{W}avelet-based river segmentation using hydraulic control-preserving water surface elevation profile properties},
  author = {{M}ontazem, {A}. {S}. and {G}arambois, {P}. {A}. and {C}almant, {S}t{\'e}phane and {F}inaud-{G}uyot, {P}. and {M}onnier, {J}. and {M}oreira, {D}. {M}. and {M}inear, {J}. {T}. and {B}iancamaria, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}iver flow models that consider satellite observations of the water surface elevation ({WSE}) require meaningful segmentation into reaches. {S}egmentation methods involve a trade-off between the spatial sampling and error characteristics of satellite observations, both of which impact the flow model realism/accuracy. {T}his paper investigates the spatial properties of {WSE} profiles (slope and concavity) and their link with hydraulic controls ({HC}s) and leverages this knowledge to advance river segmentation. {F}ine-scale synthetic cases were analyzed to characterize {HC} effects on the remotely observable {WSE} properties. {F}ollowing this, a wavelet-based segmentation method was developed and subsequently tested on real rivers, including test cases with measurements characteristic of the {S}urface {W}ater and {O}cean {T}opography satellite mission. {T}he results show that the local extrema of water surface ({WS}) concavity are good candidates for defining reach bounds while consistently preserving the {HC} signatures and local flow nonuniformities (deviations from equilibrium) from fine to large spatial scales.},
  keywords = {},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {46},
  numero = {12},
  pages = {6534--6543},
  ISSN = {0094-8276},
  year = {2019},
  DOI = {10.1029/2019gl082986},
  URL = {https://www.documentation.ird.fr/hor/fdi:010076485},
}