Sharp frontal currents in the Gulf of Mexico observed by sea surface roughness and surface drifters

Nicolas Rascle, Center for Scientific Research and Higher Education at Ensenada, Ensenada, Mexico, Bertrand Chapron, IFREMER, Laboratoire d'Oceanographie Physique et Spatiale (LOPS), UMR6523 CNRS/IFREMER/IRD/UBO, Brest, France, Frederic Nouguier, Universite de de Toulon, CNRS/INSU, IRD, Mediterranean Institute of Oceanography (MIO), Toulon, France, Alexis Mouche, IFREMER, Univ. Brest, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale, Plouzané, France, Louis Marie, IFREMER, Univ. Brest, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale UMR 6523, Brest, France, Maarten J Molemaker, Department of Atmospheric and Oceanic Sciences, University of California Los Angeles, Los Angeles, CA, United States and Francisco J Ocampo-Torres, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Ensenada, BJ, Mexico