Records |
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 |
$loc['typeJournal Article'] |
Year |
2017 |
Publication |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
Abbreviated Journal |
IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing |
Volume |
10 |
Issue |
5 |
Pages |
2205-2213 |
Keywords |
Consistency; intercalibration; scatterometer; vorticity |
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ISSN |
1939-1404 |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
21 |
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Author  |
Holbach, H.M.; Bourassa, M.A. |
Title |
The Effects of Gap-Wind-Induced Vorticity, the Monsoon Trough, and the ITCZ on East Pacific Tropical Cyclogenesis |
Type |
$loc['typeJournal Article'] |
Year |
2014 |
Publication |
Monthly Weather Review |
Abbreviated Journal |
Mon. Wea. Rev. |
Volume |
142 |
Issue |
3 |
Pages |
1312-1325 |
Keywords |
Central America; Remote sensing; Vorticity; Valley/mountain flows; Tropical cyclones; Cyclogenesis/cyclolysis |
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ISSN |
0027-0644 |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
130 |
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Author  |
Holbach, H.M.; Uhlhorn, E.W.; Bourassa, M.A. |
Title |
Off-Nadir SFMR Brightness Temperature Measurements in High-Wind Conditions |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Journal of Atmospheric and Oceanic Technology |
Abbreviated Journal |
J. Atmos. Oceanic Technol. |
Volume |
35 |
Issue |
9 |
Pages |
1865-1879 |
Keywords |
Tropical cyclones; Wind; Air-sea interaction; Microwave observations; Remote sensing; Surface observations |
Abstract |
Wind and wave-breaking directions are investigated as potential sources of an asymmetry identified in off-nadir remotely sensed measurements of ocean surface brightness temperatures obtained by the Stepped Frequency Microwave Radiometer (SFMR) in high-wind conditions, including in tropical cyclones. Surface wind speed, which dynamically couples the atmosphere and ocean, can be inferred from SFMR ocean surface brightness temperature measurements using a radiative transfer model and an inversion algorithm. The accuracy of the ocean surface brightness temperature to wind speed calibration relies on accurate knowledge of the surface variables that are influencing the ocean surface brightness temperature. Previous studies have identified wind direction signals in horizontally polarized radiometer measurements in low to moderate (0�20 m s−1) wind conditions over a wide range of incidence angles. This study finds that the azimuthal asymmetry in the off-nadir SFMR brightness temperature measurements is also likely a function of wind direction and extends the results of these previous studies to high-wind conditions. The off-nadir measurements from the SFMR provide critical data for improving the understanding of the relationships between brightness temperature, surface wave�breaking direction, and surface wind vectors at various incidence angles, which is extremely useful for the development of geophysical model functions for instruments like the Hurricane Imaging Radiometer (HIRAD). |
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0739-0572 |
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$loc['no'] |
Call Number |
COAPS @ rl18 @ |
Serial |
980 |
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