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Insights on the OAFlux ocean surface vector wind analysis merged from scatterometers and passive microwave radiometers (1987 onward)

Lisan Yu, Xiangze Jin
2014 Journal of Geophysical Research - Oceans  
The synthesis was established on the bases that the low and moderate winds (<15 m s 21 ) constitute 98% of global daily wind fields, and they are the range of winds that are retrieved with best quality  ...  A high-resolution global daily analysis of ocean surface vector winds (1987 onward) was developed by the Objectively Analyzed air-sea Fluxes (OAFlux) project.  ...  The methodology of the OAFlux objective synthesis is based on the theory of the least-variance linear statistical estimation, which leads to the formulation of a least squares estimator (the so-called  ... 
doi:10.1002/2013jc009648 fatcat:2tkwjofstjd6va2kwttjckjzky

Work done by atmospheric winds on mesoscale ocean eddies

Chi Xu, Xiaoming Zhai, Xiao-Dong Shang
2016 Geophysical Research Letters  
Mesoscale ocean eddy-wind interaction potentially provides an energy flux into or out of the eddy field, but its effect on ocean eddies has not yet been determined.  ...  Furthermore, the large-scale wind stress curl is found to on average systematically inject kinetic energy into anticyclonic (cyclonic) eddies in the subtropical (subpolar) gyres while mechanically damps  ...  Given that the global eddy energy is estimated to be in the range of 1.40-3.25 EJ (1 EJ = 10 18 J) [Xu et al., 2014] , damping by the relative wind stress gives an average eddy energy spin-down time of  ... 
doi:10.1002/2016gl071275 fatcat:gqe7mfnxczhaln37eqjgbg6364

Does direct impact of SST on short wind waves matter for scatterometry?

Semyon A. Grodsky, Vladimir N. Kudryavtsev, Abderrahim Bentamy, James A. Carton, Bertrand Chapron
2012 Geophysical Research Letters  
1] Scatterometer radar backscatter depends on the relationship linking surface stress and surface roughness.  ...  Chapron (2012), Does direct impact of SST on short wind waves matter for scatterometry?, Geophys. Res.  ...  AB acknowledges support provided by the CNES (TOSCA project). [23] The Editor thanks an anonymous reviewer for assisting in the evaluation of this paper.  ... 
doi:10.1029/2012gl052091 fatcat:czjtyw2kpfbe5jawyaslqmvapi

A New Method for Estimating Off-Shore Wind Potentials

Bent Sørensen
2008 International Journal of Green Energy  
During the last decade, microwave scatterometer measurements of the effects of wind stresses on ocean surfaces have  ...  A new method for off-shore wind power prediction is presented here, based on sweeping microwave radar ("scatterometer") measurements by satellite, that provide radar wind data from reflections by the sea  ...  Conventionally, the reflections from the ocean surfaces are considered to arise from wind-generated capillary ripples on top of wave patterns, as well as from the wave and generally ocean surfaces.  ... 
doi:10.1080/15435070802106894 fatcat:ksuwd5q42ndjrkj5dqvx3kdiqy

Free Open Source Software: FOSS Based GIS for Spatial Retrievals of Appropriate Locations for Ocean Energy Utilizing Electric Power Generation Plants

Kohei Arai
2012 International Journal of Advanced Computer Science and Applications  
Using scatterometer onboard earth observation satellites, strong wind coastal areas are retrieved with FOSS/GIS of PostgreSQL/GIS.  ...  Free Open Source Software: FOSS based Geographic Information System: GIS for spatial retrievals of appropriate locations for ocean wind and tidal motion utilizing electric power generation plants is proposed  ...  ACKNOWLEDGMENT The author would like to thank to Mr. Shuichi Uchiyama for his effort to the experiments.  ... 
doi:10.14569/ijacsa.2012.030914 fatcat:lyryim7qmnaitmdhfkatm7th2a

CFOSAT: a new Chinese-French satellite for joint observations of ocean wind vector and directional spectra of ocean waves

D. Hauser, C. Tison, T. Amiot, L. Delaye, A. Mouche, G. Guitton, L. Aouf, P. Castillan, Robert J. Frouin, Satheesh C. Shenoi, K. H. Rao
2016 Remote Sensing of the Oceans and Inland Waters: Techniques, Applications, and Challenges  
Both instruments are based on new concepts with respect to existing satellite-borne wind and wave sensors.  ...  CFOSAT (the China France Oceanography Satellite) is a joint mission from the Chinese and French Space Agencies, devoted to the observation ocean surface wind and waves so as to improve wind and wave forecast  ...  CFOSAT will contribute to the global wind field observations in complement to existing scatterometer missions (e.g.  ... 
doi:10.1117/12.2225619 fatcat:p3camibravdthffglu46nayrg4

C-band Scatterometers and Their Applications [chapter]

Vahid Naeimi, Wolfgang Wagner
2010 Geoscience and Remote Sensing New Achievements  
Acknowledgements This work was supported by the geoland-II project in frame of the Global Monitoring for the Environment and Security (GMES), a joint initiative of European Commission (EC) and European  ...  Space Agency (ESA), and the Austrian Research Promotion Agency (FFG) through the Global Monitoring of Soil Moisture (GMSM) project.  ...  The clutters were the backscatter of the radar pulses from the small waves on the sea surface.  ... 
doi:10.5772/9102 fatcat:mivqvqlgbjbinl6lu655k4esvu

Subtleties in forcing eddy resolving ocean models with satellite wind data

Yongsheng Xu, Robert B. Scott
2008 Ocean Modelling  
The difference between the real and modeled surface eddy fields can reduce the damping associated with the ocean current dependence in wind stress, leading to a positive bias in global wind power input  ...  Most of this spurious energy flux goes directly to the fluctuation eddy field and is several times larger than the energy flux to real ocean eddies.  ...  This work is supported by NSF grants OCE-0327520, OCE-0326515, OCE-0526412, and the Jackson School of Geosciences.  ... 
doi:10.1016/j.ocemod.2007.09.003 fatcat:nouycrttjnfrxhh5cbztu4hhba


J. A. Curry, A. Bentamy, M. A. Bourassa, D. Bourras, E. F. Bradley, M. Brunke, S. Castro, S. H. Chou, C. A. Clayson, W. J. Emery, L. Eymard, C. W. Fairall (+11 others)
2004 Bulletin of The American Meteorological Society - (BAMS)  
Coordination of the SEAFLUX project has been funded by a grant from NASA EOS IDS (PI: P. Webster).  ...  inherent in any global dataset based on ship and buoy observations, and the reliance on the same bulk mod-els to calculate the fluxes.  ...  At low wind speeds, inertial dissipation estimates have about one-third of the sampling uncertainty of covariance estimates.  ... 
doi:10.1175/bams-85-3-409 fatcat:vgc5sdpqp5g6df4v7d7tgfs6um

DopSCAT: A mission concept for simultaneous measurements of marine winds and surface currents

Franco Fois, Peter Hoogeboom, François Le Chevalier, Ad Stoffelen, Alexis Mouche
2015 Journal of Geophysical Research - Oceans  
A radar scatterometer operates by transmitting a pulse of microwave energy toward the ocean's surface and measuring the normalized (per-unit-surface) radar backscatter coefficient (r8).  ...  The primary application of scatterometry is the measurement of near-surface ocean winds.  ...  Acknowledgments The present work was funded by RHEA System S. A. and  ... 
doi:10.1002/2015jc011011 fatcat:4jo23wtzjfe7fawqkz22cbnr7m

Wind-wave relationship model and analysis of typhoon wave fields in the South China Sea from HY-2A satellite observations

Zengzhou Hao, Qianguang Tu, Siqi Zhang, Jianyu Chen, Delu Pan
2020 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
According to the proposed model, significant wave height from the HY-2A microwave scatterometer-retrieved wind speed and ocean wind wave analysis during the "1329" Typhoon Krosa were successfully obtained  ...  However, its measurement only covers the satellite track on the ground and cannot be applied to large regions or areas.  ...  ACKNOWLEDGMENTS The authors would like to thank the Chinese National Satellite Ocean Application Service for providing the HY-2A satellite observations and retrievals.  ... 
doi:10.1109/jstars.2020.3007495 fatcat:lbexaiucrbbkxfxqx2jjzcinka

Offshore winds mapped from satellite remote sensing

Charlotte Bay Hasager
2014 Wiley Interdisciplinary Reviews: Energy and Environment  
The data are particularly useful for investigation of long-term wind conditions. Scatterometer ocean surface wind vectors provide a continuous series since 1999 with twice-daily near-global coverage.  ...  However, to reduce the uncertainty on the model results on the offshore wind resource, it is necessary to compare model results with observations.  ...  The instantaneous surface ocean wind at 10 m above sea level is in near-equilibrium with the small ocean surface waves that may ride on much longer waves.  ... 
doi:10.1002/wene.123 fatcat:xkglxwwpsfa4xctlz62zuvu2jy

Satellite Air – Sea Fluxes [chapter]

Abderrahim Bentamy, Kristina B. Katsaros, Pierre Queffeulou
2011 Remote Sensing of the Changing Oceans  
The characteristics of the former are investigated at global and regional scales. 12 Since our estimates of the surface fluxes are based on the bulk approach, their quality would 13 be related to the accuracy  ...  This chapter addresses the estimation of global surface winds, surface wind stress, latent heat flux, and sensible heat flux over the oceans with high spatial and temporal resolution using satellite radar  ...  It is common to use parameterization methods to estimate surface fluxes based on the knowledge of some basic variables such as surface wind, sea surface temperature, air temperature, and surface and air  ... 
doi:10.1007/978-3-642-16541-2_8 fatcat:bpo64z2ribd65c2to6cmy5ny5e

Processing of the CFOSAT-SWIM data: Algorithm prototyping and simulations

C. Tison, D. Hauser, L. Delaye, T. Koleck, N. Lamquin, M. Planells, F. Gouillon, P. Castillan
2015 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)  
SWIM is a wave scatterometer which will be embarked on the Chinese French oceanography mission, CFOSAT. SWIM aims at measuring the 2D oceanic wave spectra; it is a Ku band real aperture radar.  ...  Simulations are performed to get data along the satellite track: radar signals are obtained simulated interaction with a realistic sea surface and taking into account the radar geometry.  ...  The primary objective of CFOSAT is to monitor, at the global scale, ocean surface winds and waves.  ... 
doi:10.1109/igarss.2015.7327038 dblp:conf/igarss/TisonHDKLPGC15 fatcat:b2p6ssovnvb6fknhul2yvrwz44

The Winds and Currents Mission Concept

Ernesto Rodríguez, Mark Bourassa, Dudley Chelton, J. Thomas Farrar, David Long, Dragana Perkovic-Martin, Roger Samelson
2019 Frontiers in Marine Science  
WaCM features a Ka-band pencil-beam Doppler scatterometer able to map ocean winds and currents globally. We review the principles behind the WaCM measurement and the requirements driving the mission.  ...  The Winds and Currents Mission (WaCM) is a proposed approach to meet the need identified by the NRC Decadal Survey for the simultaneous measurements of ocean vector winds and currents.  ...  ACKNOWLEDGMENTS The research was partially carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004  ... 
doi:10.3389/fmars.2019.00438 fatcat:z4bvmu7csrfu7ouzd5uyaup6mi
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