Records |
Author |
Holbach, H.M.; Uhlhorn, E.W.; Bourassa, M.A. |
Title |
Off-Nadir SFMR Brightness Temperature Measurements in High-Wind Conditions |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Journal of Atmospheric and Oceanic Technology |
Abbreviated Journal |
J. Atmos. Oceanic Technol. |
Volume |
35 |
Issue |
9 |
Pages |
1865-1879 |
Keywords |
Tropical cyclones; Wind; Air-sea interaction; Microwave observations; Remote sensing; Surface observations |
Abstract |
Wind and wave-breaking directions are investigated as potential sources of an asymmetry identified in off-nadir remotely sensed measurements of ocean surface brightness temperatures obtained by the Stepped Frequency Microwave Radiometer (SFMR) in high-wind conditions, including in tropical cyclones. Surface wind speed, which dynamically couples the atmosphere and ocean, can be inferred from SFMR ocean surface brightness temperature measurements using a radiative transfer model and an inversion algorithm. The accuracy of the ocean surface brightness temperature to wind speed calibration relies on accurate knowledge of the surface variables that are influencing the ocean surface brightness temperature. Previous studies have identified wind direction signals in horizontally polarized radiometer measurements in low to moderate (0�20 m s−1) wind conditions over a wide range of incidence angles. This study finds that the azimuthal asymmetry in the off-nadir SFMR brightness temperature measurements is also likely a function of wind direction and extends the results of these previous studies to high-wind conditions. The off-nadir measurements from the SFMR provide critical data for improving the understanding of the relationships between brightness temperature, surface wave�breaking direction, and surface wind vectors at various incidence angles, which is extremely useful for the development of geophysical model functions for instruments like the Hurricane Imaging Radiometer (HIRAD). |
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0739-0572 |
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COAPS @ rl18 @ |
Serial |
980 |
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Author |
Holbach, H.M.; Bourassa, M.A. |
Title |
Platform and Across-Swath Comparison of Vorticity Spectra From QuikSCAT, ASCAT-A, OSCAT, and ASCAT-B Scatterometers |
Type |
$loc['typeJournal Article'] |
Year |
2017 |
Publication |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
Abbreviated Journal |
IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing |
Volume |
10 |
Issue |
5 |
Pages |
2205-2213 |
Keywords |
Consistency; intercalibration; scatterometer; vorticity |
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1939-1404 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
21 |
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Author |
Ali, M.M.; Bourassa, M.A.; Bhowmick, S.A.; Sharma, R.; Niharika, K. |
Title |
Retrieval of Wind Stress at the Ocean Surface From AltiKa Measurements |
Type |
$loc['typeJournal Article'] |
Year |
2016 |
Publication |
IEEE Geoscience and Remote Sensing Letters |
Abbreviated Journal |
IEEE Geosci. Remote Sensing Lett. |
Volume |
13 |
Issue |
6 |
Pages |
821-825 |
Keywords |
AltiKa; artificial neural networks (ANNs); wind stress |
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1545-598X |
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$loc['no'] |
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COAPS @ mfield @ |
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29 |
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Ali, M.M.; Bhowmick, S.A.; Sharma, R.; Chaudhury, A.; Pezzullo, J.C.; Bourassa, M.A.; Ramana, I.V.; Niharika, K. |
Title |
An Artificial Neural Network Model Function (AMF) for SARAL-Altika Winds |
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$loc['typeJournal Article'] |
Year |
2015 |
Publication |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
Abbreviated Journal |
IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing |
Volume |
8 |
Issue |
11 |
Pages |
5317-5323 |
Keywords |
AltiKa; artificial neural network (ANN); geophysical data records; wind speed |
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1939-1404 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
118 |
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Author |
Ali, M.M.; Bhat, G.S.; Long, D.G.; Bharadwaj, S.; Bourassa, M.A. |
Title |
Estimating Wind Stress at the Ocean Surface From Scatterometer Observations |
Type |
$loc['typeJournal Article'] |
Year |
2013 |
Publication |
IEEE Geoscience and Remote Sensing Letters |
Abbreviated Journal |
IEEE Geosci. Remote Sensing Lett. |
Volume |
10 |
Issue |
5 |
Pages |
1129-1132 |
Keywords |
Atmospheric stability; neutral stability; scatterometer; wind stress |
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1545-598X |
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NASA, OVWST |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
184 |
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Author |
Weissman, D.E.; Bourassa, M.A. |
Title |
The Influence of Rainfall on Scatterometer Backscatter Within Tropical Cyclone Environments-Implications on Parameterization of Sea-Surface Stress |
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$loc['typeConference Article'] |
Year |
2011 |
Publication |
IEEE Transactions on Geoscience and Remote Sensing |
Abbreviated Journal |
IEEE Trans. Geosci. Remote Sensing |
Volume |
49 |
Issue |
12 |
Pages |
4805-4814 |
Keywords |
Meteorological radar; radar cross section; radar remote sensing; scatterometry |
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0196-2892 |
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NASA, OVWST |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
284 |
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Author |
Weissman, D.E.; Bourassa, M.A. |
Title |
Measurements of the Effect of Rain-Induced Sea Surface Roughness on the QuikSCAT Scatterometer Radar Cross Section |
Type |
$loc['typeJournal Article'] |
Year |
2008 |
Publication |
IEEE Transactions on Geoscience and Remote Sensing |
Abbreviated Journal |
IEEE Trans. Geosci. Remote Sensing |
Volume |
46 |
Issue |
10 |
Pages |
2882-2894 |
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0196-2892 |
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NASA, OVWST, NASA HQ |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
681 |
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Author |
Weissman, D.E.; Bourassa, M.A.; O'Brien, J.J.; Tongue, J.S. |
Title |
Calibrating the quikscat/seawinds radar for measuring rainrate over the oceans |
Type |
$loc['typeJournal Article'] |
Year |
2003 |
Publication |
IEEE Transactions on Geoscience and Remote Sensing |
Abbreviated Journal |
IEEE Trans. Geosci. Remote Sensing |
Volume |
41 |
Issue |
12 |
Pages |
2814-2820 |
Keywords |
Next Generation Weather Radar (NEXRAD); precipitation; radar reflectivity; scatterometer normalized radar cross section (NRCS); space-based radar; Tropical Rain Measuring Mission (TRMM) |
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0196-2892 |
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NASA |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
468 |
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Author |
Bourassa, M.A.; Freilich, M.H.; Legler, D.M.; Liu, W.T.; O'Brien, J.J. |
Title |
Wind observations from new satellite and research vessels agree |
Type |
$loc['typeJournal'] |
Year |
1997 |
Publication |
Eos, Transactions American Geophysical Union |
Abbreviated Journal |
Eos Trans. AGU |
Volume |
78 |
Issue |
51 |
Pages |
597 |
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0096-3941 |
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$loc['no'] |
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COAPS @ mfield @ |
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726 |
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Author |
Smith, S.R.; Bourassa, M.A.; Long, M. |
Title |
Pirate attacks affect Indian Ocean climate research |
Type |
$loc['typeMagazine Article'] |
Year |
2011 |
Publication |
Eos, Transactions American Geophysical Union |
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Eos Trans. AGU |
Volume |
92 |
Issue |
27 |
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225 |
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0096-3941 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
325 |
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