Microwave Emission and Scattering from Ocean Surface Waves in the Southern Beaufort Sea
Joint Authors
Barber, David G.
Gupta, Mukesh
Scharien, Randall K.
Source
International Journal of Oceanography
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-10
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Earth Science , Water and Environment
History and Geography
Science
Abstract EN
Estimates of the relationships between geophysical variables and microwave backscatter/emission are important for the evaluation of atmosphere-ocean interaction, as well as energy, and mass transfer across this interface.
We evaluate ship-based passive microwave brightness temperatures Tb at 37 and 89 GHz and active polarimetric backscatter at 5.5 GHz (C-band), as these relate to buoy-derived ocean wave parameters for distinct wave regimes in the southern Beaufort Sea.
Microwave emission and backscatter are shown to be sensitive to the ocean surface physical roughness as defined by the significant wave height Hm0, compared to wind speed.
The Tb shows significant correlation with Hm0, with the strongest correlation for the H-polarization channel at 37 and 89 GHz.
Active co-γco and cross-γcross polarization ratios at 40° incidence angle are associated with Hm0, with the γco increase proportional to Hm0.
The polarimetric coherence parameter ρVVHH at 20° also shows an inverse relationship with Hm0 because of an expected decorrelation of complex returns with greater surface roughness.
American Psychological Association (APA)
Gupta, Mukesh& Scharien, Randall K.& Barber, David G.. 2014. Microwave Emission and Scattering from Ocean Surface Waves in the Southern Beaufort Sea. International Journal of Oceanography،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-505098
Modern Language Association (MLA)
Gupta, Mukesh…[et al.]. Microwave Emission and Scattering from Ocean Surface Waves in the Southern Beaufort Sea. International Journal of Oceanography No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-505098
American Medical Association (AMA)
Gupta, Mukesh& Scharien, Randall K.& Barber, David G.. Microwave Emission and Scattering from Ocean Surface Waves in the Southern Beaufort Sea. International Journal of Oceanography. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-505098
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-505098