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Article Dans Une Revue Ocean Science Année : 2018

Measuring currents, ice drift, and waves from space: the Sea surface KInematics Multiscale monitoring (SKIM) concept

Yevgueny Aksenov
  • Fonction : Auteur
Alvise Benetazzo
Laurent Bertino
Peter Brandt
Eric Caubet
  • Fonction : Auteur
Fabrice Collard
  • Fonction : Auteur
Frederic Dias
Lucile Gaultier
Johnny Johannessen
  • Fonction : Auteur
Anton Korosov
Georgy Manucharyan
  • Fonction : Auteur
Dimitris Menemenlis
Melisa Menendez
  • Fonction : Auteur
Goulven Monnier
  • Fonction : Auteur
George Nurser
  • Fonction : Auteur
Ad Reniers
  • Fonction : Auteur
Ernesto Rodriguez
Clément Ubelmann
  • Fonction : Auteur
Erik van Sebille
Jiping Xie

Résumé

We propose a satellite mission that uses a near-nadir Ka-band Doppler radar to measure surface currents, ice drift and ocean waves at spatial scales of 40 km and more, with snapshots at least every day for latitudes 75 to 82°, and every few days for other latitudes. The use of incidence angles of 6 and 12° allows for measurement of the directional wave spectrum, which yields accurate corrections of the wave-induced bias in the current measurements. The instrument's design, an algorithm for current vector retrieval and the expected mission performance are presented here. The instrument proposed can reveal features of tropical ocean and marginal ice zone (MIZ) dynamics that are inaccessible to other measurement systems, and providing global monitoring of the ocean mesoscale that surpasses the capability of today's nadir altimeters. Measuring ocean wave properties has many applications, including examining wave–current interactions, air–sea fluxes, the transport and convergence of marine plastic debris and assessment of marine and coastal hazards.

Domaines

Océanographie
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Dates et versions

hal-03405425 , version 1 (27-10-2021)

Identifiants

Citer

Fabrice Ardhuin, Yevgueny Aksenov, Alvise Benetazzo, Laurent Bertino, Peter Brandt, et al.. Measuring currents, ice drift, and waves from space: the Sea surface KInematics Multiscale monitoring (SKIM) concept. Ocean Science, 2018, 14 (3), pp.337 - 354. ⟨10.5194/os-14-337-2018⟩. ⟨hal-03405425⟩
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