1,160 Hits in 6.3 sec

Katabatic wind propagation over the western Ross Sea observed using ERS-1 scatterometer data

Gareth J. Marshall, John Turner
1997 Antarctic Science  
Wind fields derived from ERS-1 scatterometer data, acquired over the open water present in the western Ross Sea during the summer season, are used to study the patterns of mesoscale atmospheric flow connected  ...  Comparison of multitemporal ERS-1 scatterometer wind fields with AWS wind measurements demonstrate that the satellite data are: (i) able to correctly portray changes in mesoscale circulation patterns,  ...  Acknowledgements We acknowledge the help of the French ERS PAF staff involved with disseminating the IFREMER off-line scatterometer products on CD-ROM.  ... 
doi:10.1017/s0954102097000278 fatcat:qrfmtp3vhjdjfkswxovvptl2n4

Global ice and land climate studies using scatterometer image data

D. G. Long, M. R. Drinkwater, B. Holt, S. Saatchi, C. Bertoia
2001 EOS  
Though these scatterometers were originally designed to measure oceanic surface winds, their data are also extremely useful in a broad range of ice and land applications, including the use of extensive  ...  Polar Ice Scatterometer polar imaging applications were first proposed using Seasat SASS followed by ERS wind scatterometer data and have been more recently summarized in the context of NSCAT [Long and  ... 
doi:10.1029/01eo00303 fatcat:wmga3feynzf3nhdabjngyhsh5y

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 first operational GMF used for ERS-1 scatterometer data by ESA was a prelaunch transfer function denoted CMOD2, derived from aircraft-mounted instrument data (Long, 1985) .  ... 
doi:10.5772/9102 fatcat:mivqvqlgbjbinl6lu655k4esvu

Assimilation of reprocessed ERS scatterometer data into ECMWF weather analysis on the Mediterranean Sea

R. Crapolicchio, P. Lecomte, H. Hersbach
2005 Advances in Geosciences  
Since the launch of ERS-1 in 1991 and ERS-2 in 1995, carrying a C-band Scatterometer, a data set of more than thirteen years of backscattered signal from the Earth surface is available for exploitation  ...  Main scope of the project is to provide with state-of-the-art algorithm, high quality and homogenous Scatterometer measurements (sigma nought) of the Earth surface and high quality wind field over the  ...  Beyond the original mission of the ERS Scatterometer, intended to provide measurements of the wind vector over the Originally developed to measure winds over the ocean from space, Scatterometer data has  ... 
doi:10.5194/adgeo-2-327-2005 fatcat:dc5j3jzy4rdvplkfl6dydm2at4

Status of the SeaWinds scatterometer on QuikScat

David G. Long, William L. Barnes
1999 Earth Observing Systems IV  
Thii paper provides a brief overview of the SeaWinds instrument and discusses new applications of scatterometer data for the study of land and ice.  ...  SeaWinds can measure vector (speed and direction) winds over 95% of the Earth's icefree oceans wery day, a significant improvement over previous scatterometers.  ...  While originally designed for wind observation, NSCAT data has been successfully being used in a variety of studies over land and ice.I3 In particular, NSCAT has proven to be very useful in polar ice Scatterometer  ... 
doi:10.1117/12.363509 fatcat:adsuoj5lmnhjhidpv4wr5wzepy


Kunio Kutsuwada, Minoru Kasahara, Kunihiro Aoki
2004 Gayana  
Products of gridded surface wind and wind-stress vectors over the world ocean are constructed by satellite scatterometer (ERS-1/2 and Qscat/SeaWinds) data with highly temporal and spatial resolutions.  ...  Data of the ERS-1/2 and the Qscat/SeaWinds cover periods of 1992-2000 and since August 1999, respectively, and permit us to establish a long-term time series.  ...  Acknowledgements This study was carried out, in part, under the Category 7 MEXT RR2002 Project for Sustainable Coexistence of Human, Nature and the Earth. Also  ... 
doi:10.4067/s0717-65382004000300006 fatcat:bjmycfx2mfhohfpn4cmoobbaca

Azimuthal modulation of C-band scatterometer σ/sup 0/ over Southern Ocean sea ice

D.S. Early, D.G. Long
1997 IEEE Transactions on Geoscience and Remote Sensing  
Our results show that over the ice pack, azimuthal modulation is less than 1 dB at the scale of observation of the ERS-1 C-band scatterometer.  ...  ERS-1 AMI scatterometer mode data sets from several study regions dispersed in the Antarctic seasonal sea ice pack are evaluated for azimuthal modulation.  ...  Assrar at NASA for their support of this research, ESA for the use and availability of the ERS-1 scatterometer data, and Dr. M.  ... 
doi:10.1109/36.628787 fatcat:nbmmiotaxbe2xjif5645a2azaq

A time series based method for estimating relative soil moisture with ERS wind scatterometer data

Jun Wen, Zhongbo Su
2003 Geophysical Research Letters  
The radar backscattering coefficient is mainly determined by surface soil moisture, vegetation and land surface roughness under a given configuration of the satellite sensor.  ...  Based on this hypothesis, a robust method for the determination of relative soil moisture is proposed for application to the ERS Wind Scatterometer database and the Pathfinder AVHRR dataset.  ...  Data used by the authors in this study include data produced through funding from the Earth Observing System Pathfinder Program of NASA's Mission to Planet Earth in cooperation with National Oceanic and  ... 
doi:10.1029/2002gl016557 fatcat:gblj34xawrflrgzhvf6hdago64

Twenty-Seven Years of Scatterometer Surface Wind Analysis over Eastern Boundary Upwelling Systems

Abderrahim Bentamy, Semyon A. Grodsky, Gildas Cambon, Pierre Tandeo, Xavier Capet, Claude Roy, Steven Herbette, Antoine Grouazel
2021 Remote Sensing  
The analysis accuracy is lower for 1992–1999 when satellite winds were mostly retrieved from ERS-1 and/or ERS-2 scatterometers.  ...  More than twelve satellite scatterometers have operated since 1992 through the present, providing the main source of surface wind vector observations over global oceans.  ...  Acknowledgments: The authors are grateful to IFREMER, ESA, EUMETSAT, CERSAT, JPL, ECMWF, NASA; NDBC, Copernicus/CMEMS for providing resources, numerical, satellite, and in-situ data used in this study.  ... 
doi:10.3390/rs13050940 doaj:448db349782749f79820fabd005bcc92 fatcat:flu766wvtrfwzadc2f5wpbcvfe


R Crapolicchio, P Lecomte
2004 Gayana  
Since the launch of ERS-1 in 1991 and ERS-2 in 1995, carrying a C-band Scatterometer, a data set of more than thirteen years of backscattered signal from the Earth surface is available for exploitation  ...  Main scope of the project is to provide with state of the art algorithm, high quality and homogenous Scatterometer measurements (sigma nought) of the Earth surface and high quality wind field over the  ...  Originally developed to measure winds over the ocean from space, Scatterometer data has proved to be very useful in a variety of studies.  ... 
doi:10.4067/s0717-65382004000200024 fatcat:oyvb5iu2j5a7foagxk5g2keobq

Scientific Developments and the EPS-SG Scatterometer

Ad Stoffelen, Signe Aaboe, Jean-Christophe Calvet, James Cotton, Giovanna De Chiara, Julia Figa Saldana, Alexis Aurelien Mouche, Marcos Portabella, Klaus Scipal, Wolfgang Wagner
2017 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
In conclusion, the SCA instrument innovations are well set to provide timely benefits in all the main application areas of the scatterometer (winds, soil moisture, sea ice) and can be expected to contribute  ...  In addition, SCA will represent three major innovations with respect to ASCAT, namely: 1) Cross polarization and horizontal copolarization; 2) a nominal spatial resolution of 25 km; and 3) 20% greater  ...  formed by the advanced scatterometer (ASCAT) data collected on the Metop-A platform [23] and the active microwave instrument (AMI) data collected on the European Remote Sensing ERS-1 and ERS-2 platforms  ... 
doi:10.1109/jstars.2017.2696424 fatcat:agdiglg6wndj3om4chwkeufita

Homogenization of scatterometer wind retrievals

Abderrahim Bentamy, Semyon A. Grodsky, Anis Elyouncha, Bertrand Chapron, Fabien Desbiolles
2016 International Journal of Climatology  
Finally, ERS-1 and ERS-2 wind retrievals are reprocessed using the corrected NRCS and Cmod5.n.  ...  The scatterometer data homogeneity is also investigated at global scales based on the use of collocated scatterometer retrievals and atmospheric re-analyses winds derived from ERA Interim and CFSR models  ...  wind speeds are assumed time consistent. 29 To reduce the impact of difference in spatial resolutions for NWP and scatterometer 30 winds, both are averaged over 1°×1° grid cells over scatterometer swaths  ... 
doi:10.1002/joc.4746 fatcat:kwtl6tcfhbctvb3rulhnrd3hcy

Impact of ERS scatterometer winds in ECMWF's assimilation system

Lars Isaksen, Peter A.E.M. Janssen
2004 Quarterly Journal of the Royal Meteorological Society  
ERS scatterometer winds are found to be of consistent high quality in comparison to other surface wind observations.  ...  Four case studies that highlight important aspects of ERS scatterometer wind assimilation are presented.  ...  We thank Hans Hersbach (ECMWF) for the data used in Fig. 2.  ... 
doi:10.1256/qj.03.110 fatcat:ynm5dqchwrakrbpduuizejjbju

The ERS Scatterometer Wind Measurement Accuracy: Evidence of Seasonal and Regional Biases

Y. Quilfen, B. Chapron, D. Vandemark
2001 Journal of Atmospheric and Oceanic Technology  
A validation of European Space Agency (ESA) remote sensing satellite (ERS) scatterometer ocean wind measurements is performed using a formalism recently proposed for and applied to NASA scatterometer (  ...  It is concluded that there cannot be one set of values for ERS scatterometer wind validation parameters.  ...  That is, ECMWF model analysis includes assimilation of NDBC data over the analyzed time period and ERS-2 scatterometer data since March 1996.  ... 
doi:10.1175/1520-0426(2001)018<1684:teswma>;2 fatcat:x74fcv7qqzb7bi4r6mabfjzwxe

The Effects of Marine Winds from Scatterometer Data on Weather Analysis and Forecasting

R. Atlas, R. N. Hoffman, S. M. Leidner, J. Sienkiewicz, T-W. Yu, S. C. Bloom, E. Brin, J. Ardizzone, J. Terry, D. Bungato, J. C. Jusem
2001 Bulletin of The American Meteorological Society - (BAMS)  
Over the ocean, scatterometer surface winds are deduced from multiple measurements of reflected radar power made from several directions.  ...  Satellite scatterometer observations of the ocean surface wind speed and direction improve the depiction of storms at sea.  ...  The authors thank our many colleagues at GSFC; NCEP; JPL; Atmospheric and Environmental Research, Inc; ECMWF; and KNMI who have contributed to research on the use of scatterometer data for NWP.  ... 
doi:10.1175/1520-0477(2001)082<1965:teomwf>;2 fatcat:cvcakgtgzfhwlgm4rj43uprbnm
« Previous Showing results 1 — 15 out of 1,160 results