@article{fdi:010088056, title = {{E}nvironmental control of wind response to sea surface temperature patterns in reanalysis dataset}, author = {{D}esbiolles, {F}. and {M}eroni, {A}. {N}. and {R}enault, {L}ionel and {P}asquero, {L}.}, editor = {}, language = {{ENG}}, abstract = {{S}ea surface temperature ({SST}) is characterized by abundant warm and cold structures that influence the overlying atmospheric boundary layer dynamics through two different mechanisms. {F}irst, turbulence and large eddies in the lower troposphere are affected by atmospheric stability, which can be modified by local {SST}, resulting in enhanced ver-tical mixing and larger surface winds over warmer waters. {S}econd, the thermodynamic adjustment of air density to the un-derlying {SST} structures and the subsequent changes in atmospheric pressure drive secondary circulations. {T}his paper aims to disentangle the effects of these processes and explore the environmental conditions that favor them. {T}wo main environ-mental variables are considered: the large-scale air-sea temperature difference (proxy for stability) and wind speed. {U}sing 5 years of daily reanalyses data, we investigate the 10-m wind response to {SST} structures. {B}ased on linear regression be-tween wind divergence and {SST} derivatives, we show that both mechanisms operate over a large spectrum of conditions. {T}en-meter wind divergence is strongly impacted by the local {SST} via its effect on vertical mixing for midwind regimes in slightly unstable to near-neutral conditions, whereas the secondary circulation is important in two distinct regimes: low wind speed with a slightly unstable air column and high background wind speed with a very unstable air column. {T}he first regime is explained by the prolonged {L}agrangian time that the air parcel stays over an {SST} structure while the second one is related to strong heat fluxes at the air-sea interface, which greatly modify the marine atmospheric boundary layer prop-erties. {L}ocation and frequency of the environmentally favorable conditions are discussed, as well as the response in low -cloud cover and rainfall.}, keywords = {}, booktitle = {}, journal = {{J}ournal of {C}limate}, volume = {36}, numero = {12}, pages = {203731 [13 p.]}, ISSN = {0894-8755}, year = {2023}, DOI = {10.1175/jcli-d-22-0373.1}, URL = {https://www.documentation.ird.fr/hor/fdi:010088056}, }