@article{PAR00004242, title = {{E}valuation of {AMSR}-{E} soil moisture product based on ground measurements over temperate and semi-arid regions}, author = {{G}ruhier, {C}. and {R}osnay de, {P}. and {K}err, {Y}ann and {M}ougin, {E}ric and {C}eschia, {E}. and {C}alvet, {J}. {C}. and {R}ichaume, {P}.}, editor = {}, language = {{ENG}}, abstract = {{S}oil moisture ({SM}) products provided by remote sensing approaches at continental scale are of great importance for land surface modeling and numerical weather prediction. {B}efore using remotely sensed {SM} products it is crucial to validate them. {T}his paper presents an evaluation of {AMSR}-{E} ({A}dvanced {M}icrowave {S}canning {R}adiometer-{E}arth {O}bserving {S}ystem) {SM} products over two sites. {T}hey are located in the south-west of {F}rance and in the {S}ahelian part of {M}ali in {W}est {A}frica, in the framework of the {SMOSREX} ({S}urface {M}onitoring {O}f {S}oil {R}eservoir {E}xperiment) and {AMMA} ({A}frican {M}onsoon {M}ultidisciplinary {A}nalysis) projects respectively. {T}he most representative station of the four stations of each site is used for the comparison of {AMSR}-{E} derived and in-situ {SM} measurements in absolute and normalized values. {R}esults suggest that, although {AMSR}-{E} {SM} product is not able to capture absolute {SM} values, it provides reliable information on surface {SM} temporal variability, at seasonal and rainy event scale. {I}t is shown, however, that the use of radiometric products, such as polarization ratio, provides better agreement with ground stations than the derived {SM} products.}, keywords = {}, booktitle = {}, journal = {{G}eophysical {R}esearch {L}etters}, volume = {35}, numero = {10}, pages = {{L}10405}, ISSN = {0094-8276}, year = {2008}, DOI = {10.1029/2008gl033330}, URL = {https://www.documentation.ird.fr/hor/{PAR}00004242}, }