Search Results - "Collard, Fabrice"

Journal Article

Observation of swell dissipation across oceans
Ardhuin, F., B. Chapron, and F. Collard (2009), Observation of swell dissipation across oceans, Geophys. Res. Lett., 36, L06607, doi:10.1029/2008GL037030.

by Ardhuin, Fabrice Chapron, Bertrand Collard, Fabrice Published in Geophysical research letters (27.03.2009)

“...Global observations of ocean swell, from satellite Synthetic Aperture Radar data, are used to estimate the dissipation of swell energy for a number of storms...”

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Journal Article

Booms and Banking Crises

by Boissay, Frédéric Collard, Fabrice Smets, Frank Published in The Journal of political economy (01.04.2016)

“...Banking crises are rare events that break out in the midst of credit-intensive booms and bring about deep and long-lasting recessions. This paper presents a...”

Journal Article

Fiscal Multipliers in Recessions

by Canzoneri, Matthew Collard, Fabrice Dellas, Harris Diba, Behzad Published in The Economic journal (London) (01.02.2016)

“...Standard business cycle models have difficulties generating large, state‐dependent fiscal multipliers. Employing a model of costly financial intermediation...”

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Journal Article

Monitoring and analysis of ocean swell fields from space: New methods for routine observations
Collard, F., F. Ardhuin, and B. Chapron (2009), Monitoring and analysis of ocean swell fields from space: New methods for routine observations, J. Geophys. Res., 114, C07023, doi:10.1029/2008JC005215.

by Collard, Fabrice Ardhuin, Fabrice Chapron, Bertrand Published in Journal of Geophysical Research: Oceans (22.07.2009)

“...Satellite synthetic aperture radar (SAR) observations can provide a global view of ocean swell fields when using a specific “wave mode” sampling. A methodology...”

Journal Article

Ocean surface current retrieval from space: The Sentinel-2 multispectral capabilities

by Yurovskaya, Maria Kudryavtsev, Vladimir Chapron, Bertrand Collard, Fabrice Published in Remote sensing of environment (01.12.2019)

“...The Sentinel-2 MultiSpectral Instrument (MSI) collects multiple spectral band images, corresponding to specific sensing wavelengths and spatial resolutions,...”

Journal Article

Semiempirical Dissipation Source Functions for Ocean Waves. Part I: Definition, Calibration, and Validation

by ARDHUIN, Fabrice ROGERS, Erick COLLARD, Fabrice BABANIN, Alexander V FILIPOT, Jean-François MAGNE, Rudy ROLAND, Aaron VAN DER WESTHUYSEN, Andre QUEFFEULOU, Pierre LEFEVRE, Jean-Michel AOUF, Lotfi Published in Journal of physical oceanography (2010)

“...Abstract New parameterizations for the spectral dissipation of wind-generated waves are proposed. The rates of dissipation have no predetermined spectral...”

Journal Article

QUANTIFYING CONFIDENCE

by Angeletos, George‐Marios Collard, Fabrice Dellas, Harris Published in Econometrica (01.09.2018)

“...We develop a tractable method for augmenting macroeconomic models with autonomous variation in higher-order beliefs. We use this to accommodate a certain type...”

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Journal Article

Direct measurements of ocean surface velocity from space: Interpretation and validation
Chapron, B., F. Collard, and F. Ardhuin (2005), Direct measurements of ocean surface velocity from space: Interpretation and validation, J. Geophys. Res., 110, C07008, doi:10.1029/2004JC002809.

by Chapron, Bertrand Collard, Fabrice Ardhuin, Fabrice Published in Journal of Geophysical Research: Oceans (16.07.2005)

“...The median Doppler shift of radar echoes is analyzed in measurements by ENVISAT's Advanced Synthetic Aperture Radar (ASAR) over the ocean. This Doppler...”

Journal Article

Optimal Monetary and Prudential Policies

by Collard, Fabrice Dellas, Harris Diba, Behzad Loisel, Olivier Published in American economic journal. Macroeconomics (01.01.2017)

“...The recent financial crisis has highlighted the interconnectedness between macroeconomic and financial stability, raising questions about how to combine...”

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Journal Article

Sea Surface Kinematics From Near-Nadir Radar Measurements

by Nouguier, Frederic Chapron, Bertrand Collard, Fabrice Mouche, Alexis A Rascle, Nicolas Ardhuin, Fabrice Wu, Xiaoqing Published in IEEE transactions on geoscience and remote sensing (01.10.2018)

“...Doppler radars at all incidence angles measure mean velocities and spreads that have complex relations to oceanic motions, with opportunities to measure winds,...”

Journal Article

Exploitation of error correlation in a large analysis validation: GlobCurrent case study

by Danielson, Richard E Johannessen, Johnny A Quartly, Graham D Rio, Marie-Hélène Chapron, Bertrand Collard, Fabrice Donlon, Craig Published in Remote sensing of environment (01.11.2018)

“...An assessment of variance in ocean current signal and noise shared by in situ observations (drifters) and a large gridded analysis (GlobCurrent) is sought as a...”

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Journal Article

Estimates of ocean wave heights and attenuation in sea ice using the SAR wave mode on Sentinel-1A
Ardhuin, F., F. Collard, B. Chapron, F. Girard-Ardhuin, G. Guitton, A. Mouche, and J. E. Stopa (2015), Estimates of ocean wave heights and attenuation in sea ice using the SAR wave mode on Sentinel-1A. Geophys. Res. Lett., 42, 2317-2325. doi: 10.1002/2014GL062940.

by Ardhuin, Fabrice Collard, Fabrice Chapron, Bertrand Girard-Ardhuin, Fanny Guitton, Gilles Mouche, Alexis Stopa, Justin E Published in Geophysical research letters (16.04.2015)

“...Swell evolution from the open ocean into sea ice is poorly understood, in particular the amplitude attenuation expected from scattering and dissipation. New...”

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Journal Article

On Dual Co-Polarized SAR Measurements of the Ocean Surface

by Kudryavtsev, V. N Chapron, B Myasoedov, A. G Collard, F Johannessen, J. A Published in IEEE geoscience and remote sensing letters (01.07.2013)

“...An effective methodology using satellite high-resolution polarized information to interpret and quantitatively assess various surface ocean phenomena is...”

Journal Article

Imaging mesoscale upper ocean dynamics using synthetic aperture radar and optical data
Kudryavtsev, V., A. Myasoedov, B. Chapron, J. A. Johannessen, and F. Collard (2012), Imaging mesoscale upper ocean dynamics using synthetic aperture radar and optical data, J. Geophys. Res., 117, C04029, doi:10.1029/2011JC007492.

by Kudryavtsev, Vladimir Myasoedov, Alexander Chapron, Bertrand Johannessen, Johnny A Collard, Fabrice Published in Journal of Geophysical Research: Oceans (01.04.2012)

“...A synergetic approach for quantitative analysis of high‐resolution ocean synthetic aperture radar (SAR) and imaging spectrometer data, including the infrared...”

Journal Article

Government Size and Macroeconomic Volatility

by Collard, Fabrice Dellas, Harris Tavlas, George Published in Economica (London) (01.10.2017)

“...We examine the implications of government size for macroeconomic volatility in a standard New‐Keynesian model with multiple shocks. Larger government size...”

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Journal Article

Estimating wave orbital velocity through the azimuth cutoff from space-borne satellites
Stopa, J. E., F. Ardhuin, B. Chapron, and F. Collard (2015), Estimating wave orbital velocity through the azimuth cutoff from space-borne satellites, J. Geophys. Res. Oceans, 120, 7616-7634, doi:10.1002/2015JC011275.

by Stopa, Justin E Ardhuin, Fabrice Chapron, Bertrand Collard, Fabrice Published in Journal of geophysical research. Oceans (01.11.2015)

“...It has been long accepted that ocean wave conditions recorded from synthetic aperture radar (SAR) aboard satellites resolve large scale swells. SARs make use...”

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Journal Article

Sun glitter imagery of surface waves. Part 2: Waves transformation on ocean currents

by Kudryavtsev, Vladimir Yurovskaya, Maria Chapron, Bertrand Collard, Fabrice Donlon, Craig Published in Journal of geophysical research. Oceans (01.02.2017)

“...Under favorable imaging conditions, the Sentinel‐2 Multi‐Spectral Instrument (MSI) can provide spectacular and novel quantitative ocean surface wave...”

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Journal Article

Sea State Impacts on Wind Speed Retrievals From C-Band Radars

by Stopa, Justin Edward Mouche, Alexis Aurelien Chapron, Bertrand Collard, Fabrice Published in IEEE journal of selected topics in applied earth observations and remote sensing (01.05.2017)

“...Scatterometers, a proven technology, provide ocean wind speeds and directions that are essential in operational forecasts, monitoring of the climate, and...”

Journal Article

Sun glitter imagery of ocean surface waves. Part 1: Directional spectrum retrieval and validation

by Kudryavtsev, Vladimir Yurovskaya, Maria Chapron, Bertrand Collard, Fabrice Donlon, Craig Published in Journal of geophysical research. Oceans (01.02.2017)

“...A practical method is suggested to quantitatively retrieve directional spectra of ocean surface waves from high‐resolution satellite sun glitter imagery...”

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Journal Article

Neural Network Based Kalman Filters for the Spatio-Temporal Interpolation of Satellite-Derived Sea Surface Temperature

by Ouala, Said Fablet, Ronan Herzet, Cédric Chapron, Bertrand Pascual, Ananda Collard, Fabrice Gaultier, Lucile Published in Remote sensing (Basel, Switzerland) (22.11.2018)

“...The forecasting and reconstruction of oceanic dynamics is a crucial challenge. While model driven strategies are still the state-of-the-art approaches in the...”

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