Stoffelen
Ad
Stoffelen
Ad
No Thumbnail Available
Search Results
Now showing
1 - 2 of 2
-
ArticleSEASTAR: A mission to study ocean submesoscale dynamics and small-scale atmosphere-ocean processes in coastal, shelf and polar seas(Frontiers Media, 2019-08-13) Gommenginger, Christine ; Chapron, Bertrand ; Hogg, Andy ; Buckingham, Christian ; Fox-Kemper, Baylor ; Eriksson, Leif ; Soulat, Francois ; Ubelmann, Clement ; Ocampo-Torres, Francisco ; Nardelli, Bruno Buongiorno ; Griffin, David ; Lopez-Dekker, Paco ; Knudsen, Per ; Andersen, Ole ; Stenseng, Lars ; Stapleton, Neil ; Perrie, Will ; Violante-Carvalho, Nelson ; Schulz-Stellenfleth, Johannes ; Woolf, David K. ; Isern-Fontanet, Jordi ; Ardhuin, Fabrice ; Klein, Patrice ; Mouche, Alexis ; Pascual, Ananda ; Capet, Xavier ; Hauser, Daniele ; Stoffelen, Ad ; Morrow, Rosemary ; Aouf, Lotfi ; Breivik, Øyvind ; Fu, Lee-Lueng ; Johannessen, Johnny A. ; Aksenov, Yevgeny ; Bricheno, Lucy ; Hirschi, Joel ; Martin, Adrien C. H. ; Martin, Adrian P. ; Nurser, A. J. George ; Polton, Jeff ; Wolf, Judith ; Johnsen, Harald ; Soloviev, Alexander ; Jacobs, Gregg A. ; Collard, Fabrice ; Groom, Steve ; Kudryavtsev, Vladimir ; Wilkin, John L. ; Navarro, Victor ; Babanin, Alexander ; Martin, Matthew ; Siddorn, John ; Saulter, Andrew ; Rippeth, Tom P. ; Emery, Bill ; Maximenko, Nikolai ; Romeiser, Roland ; Graber, Hans C. ; Alvera Azcarate, Aida ; Hughes, Chris W. ; Vandemark, Douglas ; da Silva, Jose ; Van Leeuwen, Peter Jan ; Naveira Garabato, Alberto C. ; Gemmrich, Johannes ; Mahadevan, Amala ; Marquez, Jose ; Munro, Yvonne ; Doody, Sam ; Burbidge, GeoffHigh-resolution satellite images of ocean color and sea surface temperature reveal an abundance of ocean fronts, vortices and filaments at scales below 10 km but measurements of ocean surface dynamics at these scales are rare. There is increasing recognition of the role played by small scale ocean processes in ocean-atmosphere coupling, upper-ocean mixing and ocean vertical transports, with advanced numerical models and in situ observations highlighting fundamental changes in dynamics when scales reach 1 km. Numerous scientific publications highlight the global impact of small oceanic scales on marine ecosystems, operational forecasts and long-term climate projections through strong ageostrophic circulations, large vertical ocean velocities and mixed layer re-stratification. Small-scale processes particularly dominate in coastal, shelf and polar seas where they mediate important exchanges between land, ocean, atmosphere and the cryosphere, e.g., freshwater, pollutants. As numerical models continue to evolve toward finer spatial resolution and increasingly complex coupled atmosphere-wave-ice-ocean systems, modern observing capability lags behind, unable to deliver the high-resolution synoptic measurements of total currents, wind vectors and waves needed to advance understanding, develop better parameterizations and improve model validations, forecasts and projections. SEASTAR is a satellite mission concept that proposes to directly address this critical observational gap with synoptic two-dimensional imaging of total ocean surface current vectors and wind vectors at 1 km resolution and coincident directional wave spectra. Based on major recent advances in squinted along-track Synthetic Aperture Radar interferometry, SEASTAR is an innovative, mature concept with unique demonstrated capabilities, seeking to proceed toward spaceborne implementation within Europe and beyond.
-
ArticleOcean mesoscale and frontal-scale ocean–atmosphere interactions and influence on large-scale climate: a review(American Meteorological Society, 2023-03-01) Seo, Hyodae ; O’Neill, Larry W. ; Bourassa, Mark A. ; Czaja, Arnaud ; Drushka, Kyla ; Edson, James B. ; Fox-Kemper, Baylor ; Frenger, Ivy ; Gille, Sarah T. ; Kirtman, Benjamin P. ; Minobe, Shoshiro ; Pendergrass, Angeline G. ; Renault, Lionel ; Roberts, Malcolm J. ; Schneider, Niklas ; Small, R. Justin ; Stoffelen, Ad ; Wang, QingAbstract Two decades of high-resolution satellite observations and climate modeling studies have indicated strong ocean–atmosphere coupled feedback mediated by ocean mesoscale processes, including semipermanent and meandrous SST fronts, mesoscale eddies, and filaments. The air–sea exchanges in latent heat, sensible heat, momentum, and carbon dioxide associated with this so-called mesoscale air–sea interaction are robust near the major western boundary currents, Southern Ocean fronts, and equatorial and coastal upwelling zones, but they are also ubiquitous over the global oceans wherever ocean mesoscale processes are active. Current theories, informed by rapidly advancing observational and modeling capabilities, have established the importance of mesoscale and frontal-scale air–sea interaction processes for understanding large-scale ocean circulation, biogeochemistry, and weather and climate variability. However, numerous challenges remain to accurately diagnose, observe, and simulate mesoscale air–sea interaction to quantify its impacts on large-scale processes. This article provides a comprehensive review of key aspects pertinent to mesoscale air–sea interaction, synthesizes current understanding with remaining gaps and uncertainties, and provides recommendations on theoretical, observational, and modeling strategies for future air–sea interaction research. Significance Statement Recent high-resolution satellite observations and climate models have shown a significant impact of coupled ocean–atmosphere interactions mediated by small-scale (mesoscale) ocean processes, including ocean eddies and fronts, on Earth’s climate. Ocean mesoscale-induced spatial temperature and current variability modulate the air–sea exchanges in heat, momentum, and mass (e.g., gases such as water vapor and carbon dioxide), altering coupled boundary layer processes. Studies suggest that skillful simulations and predictions of ocean circulation, biogeochemistry, and weather events and climate variability depend on accurate representation of the eddy-mediated air–sea interaction. However, numerous challenges remain in accurately diagnosing, observing, and simulating mesoscale air–sea interaction to quantify its large-scale impacts. This article synthesizes the latest understanding of mesoscale air–sea interaction, identifies remaining gaps and uncertainties, and provides recommendations on strategies for future ocean–weather–climate research.