@article{fdi:010086836, title = {{A} sensitivity analysis of a {FAO}-56 dual crop coefficient-based model under various field conditions}, author = {{L}aluet, {P}. and {O}livera-{G}uerra, {L}. and {R}ivalland, {V}. and {S}imonneaux, {V}incent and {I}nglada, {J}. and {B}ellvert, {J}. and {E}r-raki, {S}. and {M}erlin, {O}.}, editor = {}, language = {{ENG}}, abstract = {{FAO}-56 dual crop coefficient ({FAO}-2{K}c) based model are increasingly applied at large scale for agricultural water monitoring, requiring field-scale data over the spatial extent of interest. {G}iven the lack of in-situ measurements, satellite products can be used to estimate indirectly the parameters through calibration. {H}owever, a lack of knowledge about model sensitivity can lead to suboptimal use of satellite data. {T}his study aims to analyze the sensitivity of {SAMIR}, a {FAO}-2{K}c-based model using satellite data. {T}he {S}obol method was applied for evapo-transpiration ({ET}) and deep percolation ({DP}) simulations on 37 contrasted agricultural seasons. {R}esults indicate that {SAMIR}'s sensitivity mainly depends on the modeled water stress. {W}e proposed a proxy for the model sensitivity which can determine 84% (73%) of the {ET} ({DP}) among the agricultural seasons. {A}n interaction analysis allowed reducing the calibration problem to the adjustment of only two parameters (a_{K}cb and {Z}r_max), accounting for most of the sensitivity.}, keywords = {{FAO}-56 model ; {S}obol sensitivity analysis ; {E}vapotranspiration ; {D}eep percolation ; {R}emote sensing ; {C}alibration}, booktitle = {}, journal = {{E}nvironmental {M}odelling and {S}oftware}, volume = {160}, numero = {}, pages = {105608 [13 p.]}, ISSN = {1364-8152}, year = {2023}, DOI = {10.1016/j.envsoft.2022.105608}, URL = {https://www.documentation.ird.fr/hor/fdi:010086836}, }