@article{fdi:010083891,
  title = {{F}irst evidence of correlation between evapotranspiration and gravity at a daily time scale from two vertically spaced superconducting gravimeters},
  author = {{C}arriere, {S}. {D}. and {L}oiseau, {B}. and {C}hampollion, {C}. and {O}llivier, {C}hlo{\'e} and {M}artin-{S}t{P}aul, {N}. {K}. and {L}esparre, {N}. and {O}lioso, {A}. and {H}inderer, {J}. and {J}ougnot, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}stimating evapotranspiration ({ET}) is a primary challenge in modern hydrology. {H}ydrogravimetry is an integrative approach providing highly precise continuous measurement of gravity acceleration. {H}owever, large-scale effects (e.g., tides, polar motion, atmospheric loading) limit the fine time-scale interpretation of the gravity data and processing leads to residual signal noise. {T}o circumvent this limitation, we exploited the difference between two superconducting gravimeters ({SG}s) vertically spaced by 512 m. {T}he gravity difference allows to remove common large-scale effects. {D}aily variation of the gravity difference is significantly correlated with daily evapotranspiration as estimated using the water balance model {S}imp{K}c{ET} (p-value = 4.10(-10)). {H}owever, this approach is effective only during rain-free periods. {I}n the future, comparison with direct {ET} measurements (e.g., eddy-covariance, scintillometer) may confirm and strengthen our interpretation. {I}mproved hydrogravimetric data processing could extend the proposed approach to other experimental sites equipped with a single {SG}.},
  keywords = {evapotranspiration ; hydrogravimetry ; karst ; mediterranean ecosystem ; ecohydrology ; {FRANCE} ; {ZONE} {MEDITERRANEENNE} ; {FONTAINE} {DE} {VAUCLUSE}},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {48},
  numero = {24},
  pages = {e2021{GL}096579 [8 p.]},
  ISSN = {0094-8276},
  year = {2021},
  DOI = {10.1029/2021gl096579},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083891},
}