@article{fdi:010062656,
  title = {{M}ultiangle backscattering observations of continental surfaces in {K}u-band (13 {GH}z) {F}rom satellites : understanding the signals, particularly in arid regions},
  author = {{P}rigent, {C}. and {A}ires, {F}. and {J}imenez, {C}. and {P}apa, {F}abrice and {R}oger, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackscattering in {K}u-band (13 {GH}z) over continental surfaces is analyzed, with the {T}ropical {R}ainfall {M}easurement {M}ission/{P}recipitation {R}adar instruments (incidence angles from 0 degrees to 18 degrees), along with observations from the {T}opex-{P}oseidon nadir-looking altimeter and the {Q}uik{SCAT} scatterometer (incidence angles around 50 degrees). {T}he signals from the three instruments are very consistent. {T}he backscattering tends to decrease with increasing vegetation density, as expected, making it possible to classify vegetation density with active microwaves. {O}ver the northern {A}frican desert, a very large spatial variability of the backscattering is observed, with both surface and volume scatterings contributing to the signals. {T}he use of multiangle observations does help characterizing the desert types, but in some areas, the ambiguity of the signals is still unexplained. {T}he {F}rench-{C}hinese joint mission "{C}hinese-{F}rench {O}ceanic {SAT}ellite" will carry two active microwave instruments with a large range of incidence angles, from 0 degrees to 50 degrees. {W}e show that the combined use of observations at low and high incidence angles adds information, particularly over desert surfaces.},
  keywords = {{A}ltimetry ; radar remote sensing ; surface roughness ; {ZONE} {ARIDE}},
  booktitle = {},
  journal = {{IEEE} {T}ransactions on {G}eoscience and {R}emote {S}ensing},
  volume = {53},
  numero = {3},
  pages = {1364--1373},
  ISSN = {0196-2892},
  year = {2015},
  DOI = {10.1109/tgrs.2014.2338913},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062656},
}