@article{fdi:010087705,
  title = {{T}he surface-boundary layer connection across spatial scales of irrigation-driven thermal heterogeneity : an integrated data and modeling study of the {LIAISE} field campaign},
  author = {{M}angan, {M}. {R}. and {H}artogensis, {O}. and {B}oone, {A}. and {B}ranch, {O}. and {C}anut, {G}. and {C}uxart, {J}. and de {B}oer, {H}. {J}. and {L}e {P}age, {M}ichel and {M}artinez-{V}illagrasa, {D}. and {M}iro, {J}. {R}. and {P}rice, {J}. and de {A}rellano, {J}. {V}. {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}rrigation in semi-arid regions induces thermal heterogeneity across a range of spatial scales that impacts the partitioning of energy at the surface, the development of the atmospheric boundary layer, and the bidirectional interactions between the atmosphere and the surface. {I}n this analysis, we use data from the {L}and {S}urface {I}nteractions with the {A}tmosphere in the {I}berian {S}emi-{A}rid {E}nvironment ({LIAISE}) experiment combined with a coupled land-atmosphere model to understand the role of the scales of irrigation-induced, thermal heterogeneity on the surface fluxes and consequently, the development of the diurnal convective boundary layer. {T}he surface heterogeneity is characterized by {B}owen ratios that range from -0.01 in the irrigated areas to -30 in the non-irrigated areas; however, the observed boundary-layers dynamics in both locations are similar. {I}n this analysis, we address the questions of how the surface fluxes impact the development of the boundary-layer dynamics and how the boundary layer influences the diurnal cycle of surface fluxes. {T}o interpret the observations, we introduce a heterogeneity scaling scheme where length scales range from local scale (-100 m) to regional scale (-10 km) to investigate the role of scale on surface representation in numerical models and to address the discrepancy between surface observations and their representation in weather and climate models.{W}e find that at the surface, both the available energy and its partitioning depend on spatial scale. {T}he observed boundary-layer properties can be explained through the composite of surface fluxes at the regional scale. {S}urface fluxes at the local scales are unable to replicate the observed boundary layer - even when including large-scale contributions. {W}e find that non-local boundary layer processes like advection are important for partitioning energy at the local scale. {W}e explore the connection between surface fluxes and the development of the boundary layer and the potential non-local effects on boundary-layer development.},
  keywords = {{S}urface heterogeneity ; {S}caling surface fluxes ; {B}oundary-layer dynamics ; {H}eat & moisture advection ; {ESPAGNE} ; {ZONE} {SEMIARIDE}},
  booktitle = {},
  journal = {{A}gricultural and {F}orest {M}eteorology},
  volume = {335},
  numero = {},
  pages = {109452 [15 p.]},
  ISSN = {0168-1923},
  year = {2023},
  DOI = {10.1016/j.agrformet.2023.109452},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087705},
}