@article{PAR00012927,
  title = {{C}omparison of {D}obson and {M}ironov dielectric models in the {SMOS} soil moisture retrieval algorithm},
  author = {{M}ialon, {A}. and {R}ichaume, {P}. and {L}eroux, {D}. and {B}ircher, {S}. and {A}l {B}itar, {A}. and {P}ellarin, {T}. and {W}igneron, {J}. {P}. and {K}err, {Y}ann},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}oil {M}oisture and {O}cean {S}alinity ({SMOS}) mission provides global surface soil moisture over the continental land surfaces. {T}he retrieval algorithm is based on the comparison between the observations of the {L}-band (1.4 {GH}z) brightness temperatures ({TB}) and the simulated {TB} data using the {L}-band {M}icrowave {E}mission of the {B}iosphere ({L}-{MEB}) model. {T}he {L}-{MEB} model includes a dielectric model for the computation of the soil dielectric constant. {S}ince the beginning of the mission, the {D}obson model has been used in the operational {SMOS} algorithm. {R}ecently, a new model of the soil dielectric constant has been developed by {M}ironov et al. and is now considered. {T}his paper is the first evaluation of these two models based on the actual {SMOS} observations. {F}irst, both {D}obson and {M}ironov models were modified to ensure that the {SMOS} retrieval algorithm converges to realistic soil moisture retrievals (symmetrization for negative soil moisture values was applied). {S}econd, soil moisture was retrieved over several sites using both {D}obson and {M}ironov models to compute the soil dielectric constant and were compared with in situ measurements. {A}t a global scale, the use of the {M}ironov model leads to higher retrieved soil moisture than when using the {D}obson model (0.033 m(3)/m(3) on average). {H}owever, the comparisons of the two model output with in situ measurements over various test sites do not demonstrate a superior performance of one model over the other.},
  keywords = {{D}ielectric constant ; {L}-band ; {L}-band {M}icrowave {E}mission of the {B}iosphere ; ({L}-{MEB}) model ; passive microwave ; {S}oil {M}oisture and {O}cean {S}alinity ; ({SMOS})},
  booktitle = {},
  journal = {{I}eee {T}ransactions on {G}eoscience and {R}emote {S}ensing},
  volume = {53},
  numero = {6},
  pages = {3084--3094},
  ISSN = {0196-2892},
  year = {2015},
  DOI = {10.1109/tgrs.2014.2368585},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00012927},
}