@article{fdi:010053355,
  title = {{A}n independent component analysis filtering approach for estimating continental hydrology in the {GRACE} gravity data},
  author = {{F}rappart, {F}. and {R}amillien, {G}. and {L}eblanc, {M}. and {T}weed, {S}.{O}. and {B}onnet, {M}arie-{P}aule and {M}aisongrande, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}n approach based on {I}ndependent {C}omponent {A}nalysis ({ICA}) has been applied on a combination of monthly {GRACE} satellite solutions computed from official providers ({CSR}, {JPL} and {GFZ}), to separate useful geophysical signals from important striping undulations. {W}e pre-filtered the raw {GRACE} {L}evel-2 solutions using {G}aussian filters of 300, 400, 500-km of radius to verify the non-{G}aussianity condition which is necessary to apply the {ICA}. {T}his linear inverse approach ensures to separate components of the observed gravity field which are statistically independent. {T}he most energetic component found by {ICA} corresponds mainly to the contribution of continental water mass change. {S}eries of {ICA}-estimated global maps of continental water storage have been produced over 08/2002-07/2009. {O}ur {ICA} estimates were compared with the solutions obtained using other post-processing of {GRACE} {L}evel-2 data, such as destriping and {G}aussian filtering, at global and basin scales. {B}esides, they have been validated with in situ measurements in the {M}urray-{D}arling {B}asin. {O}ur computed {ICA} grids are consistent with the different approaches. {M}oreover, the {ICA}-derived time series of water masses showed less north-south spurious gravity signals and improved filtering of unrealistic hydrological features at the basin-scale compared with solutions obtained using other filtering methods.},
  keywords = {{F}iltering technique ; {G}ravimetry from space ; {H}ydrology ; {I}ndependent ; component analysis},
  booktitle = {},
  journal = {{R}emote {S}ensing of {E}nvironment},
  volume = {115},
  numero = {1},
  pages = {187--204},
  ISSN = {0034-4257},
  year = {2011},
  DOI = {10.1016/j.rse.2010.08.017},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053355},
}