@article{fdi:010062512, title = {{HYMEX}-{SOPI} the field campaign dedicated to heavy precipitation and flash flooding in the {N}orthwestern {M}editerranean}, author = {{D}ucrocq, {V}. and {B}raud, {I}. and {D}avolio, {S}. and {F}erretti, {R}. and {F}lamant, {C}. and {J}ansa, {A}. and {K}althoff, {N}. and {R}ichard, {E}. and {T}aupier-{L}etage, {I}. and {A}yral, {P}. {A}. and {B}elamari, {S}. and {B}erne, {A}. and {B}orga, {M}. and {B}oudevillain, {B}. and {B}ock, {O}. and {B}oichard, {J}. {L}. and {B}ouin, {M}. {N}. and {B}ousquet, {O}. and {B}ouvier, {C}hristophe and {C}higgiato, {J}. and {C}imini, {D}. and {C}orsmeier, {U}. and {C}oppola, {L}. and {C}ocquerez, {P}. and {D}efer, {E}. and {D}elanoe, {J}. and {D}i {G}irolamo, {P}. and {D}oerenbecher, {A}. and {D}robinski, {P}. and {D}ufournet, {Y}. and {F}ourrie, {N}. and {G}ourley, {J}. {J}. and {L}abatut, {L}. and {L}ambert, {D}. and {L}e {C}oz, {J}. and {M}arzano, {F}. {S}. and {M}olinie, {G}. and {M}ontani, {A}. and {N}ord, {G}. and {N}uret, {M}. and {R}amage, {K}. and {R}ison, {W}. and {R}oussot, {O}. and {S}aid, {F}. and {S}chwarzenboeck, {A}. and {T}estor, {P}. and {V}an {B}aelen, {J}. and {V}incendon, {B}. and {A}ran, {M}. and {T}amayo, {J}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {M}editerranean region is frequently affected by heavy precipitation events associated with flash floods, landslides, and mudslides that cause hundreds of millions of euros in damages per year and, often, casualties. {A} major field campaign was devoted to heavy precipitation and flash floods from 5 {S}eptember to 6 {N}ovember 2012 within the framework of the 10-yr international {H}ydrological {C}ycle in the {M}editerranean {E}xperiment ({H}y{M}e{X}) dedicated to the hydrological cycle and related high-impact events. {T}he 2-month field campaign took place over the northwestern {M}editerranean {S}ea and its surrounding coastal regions in {F}rance, {I}taly, and {S}pain. {T}he observation strategy of the field experiment was devised to improve. knowledge of the following key components leading to heavy precipitation and flash flooding in the region: 1) the marine atmospheric flows that transport moist and conditionally unstable air toward the coasts, 2) the {M}editerranean {S}ea acting as a moisture and energy source, 3) the dynamics and microphysics of the convective systems producing heavy precipitation, and 4) the hydrological processes during flash floods. {T}his article provides the rationale for developing this first {H}y{M}e{X} field experiment and an overview of its design and execution. {H}ighlights of some intensive observation periods illustrate the potential of the unique datasets collected for process understanding, model improvement, and data assimilation.}, keywords = {{MEDITERRANEE}}, booktitle = {}, journal = {{B}ulletin of the {A}merican {M}eteorological {S}ociety}, volume = {95}, numero = {7}, pages = {1083--1100}, ISSN = {0003-0007}, year = {2014}, DOI = {10.1175/bams-d-12-00244.1}, URL = {https://www.documentation.ird.fr/hor/fdi:010062512}, }