Search Results - "El‐Nimri, Salem"

Total Electron Content Retrieved From L‐Band Radiometers and Potential Improvements to the IGS Model by Soldo, Yan, Hong, Liang, El‐Nimri, Salem, Le Vine, David M.

“…In recent years, several L‐band microwave instruments have been launched into Earth's orbit to measure soil moisture and ocean salinity (e.g., Soil Moisture…”
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Hurricane Wind Speed Measurements in Rainy Conditions Using the Airborne Hurricane Imaging Radiometer (HIRAD) by Amarin, R. A., Jones, W. L., El-Nimri, S. F., Johnson, J. W., Ruf, C. S., Miller, T. L., Uhlhorn, E.

“…This paper describes a realistic computer simulation of airborne hurricane surveillance using the recently developed microwave remote sensor, the hurricane…”
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NASA's high-rate Ka-band downlink system for the NISAR mission by Kobayashi, M. Michael, Stocklin, Frank, Pugh, Michael, Kuperman, Igor, Bell, David, El-Nimri, Salem, Johnson, Brad, Huynh, Nancy, Kelly, Shane, Nessel, James, Svitak, Andy, Williams, Tim, Linton, Nancy, Arciaga, Meghan, Dissanayake, Asoka

“…This paper provides a description and analyses of NASA's (National Aeronautics and Space Administration) high-rate Ka-band downlink system for the upcoming…”
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A Roughness Correction for Aquarius Sea Surface Salinity Using the CONAE MicroWave Radiometer by Hejazin, Yazan, Jones, W. Linwood, Santos-Garcia, Andrea, Jacob, Maria Marta, El-Nimri, Salem Fawwaz

“…Aquarius (AQ)/SAC-D is a joint National Aeronautics and Space Administration (NASA)/Comisión Nacional de Actividades Espaciales (CONAE; Argentine Space…”
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An Improved C-Band Ocean Surface Emissivity Model at Hurricane-Force Wind Speeds Over a Wide Range of Earth Incidence Angles by El-Nimri, Salem Fawwaz, Jones, W Linwood, Uhlhorn, Eric, Ruf, Christopher, Johnson, James, Black, Peter

“…An improved microwave radiometric ocean surface emissivity model has been developed to support forward radiative transfer modeling of brightness temperature…”
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An ocean roughness correction algorithm for retrieving salinity on Aquarius by Hejazin, Y., Jones, W. L., El-Nimri, S.

“…Aquarius/SAC-D is a joint NASA/CONAE (Argentine Space Agency) Earth Sciences satellite mission to measure the global sea surface salinity (SSS) using an L-band…”
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Development of an improved microwave ocean surface emissivity radiative transfer model by El-Nimri, Salem Fawwaz

“…An electromagnetic model is developed for predicting the microwave blackbody emission from the ocean surface over a wide range of frequencies, incidence…”
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Simulated OVW retrievals in tropical cyclones for the next generation Dual Frequency Scatterometer by Alsweiss, Suleiman, Laupattarakasem, Peth, El-Nimri, Salem, Jones, W. Linwood, Veleva, Svetla, Stiles, Bryan W., Rodriguez, Ernesto, Gaston, Robert W.

“…The purpose of this study is to investigate the potential of the next generation Dual Frequency Scatterometer (DFS) proposed to fly onboard the Japanese…”
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Development of an improved microwave ocean surface emissivity radiative transfer model by El-Nimri, Salem Fawwaz

“…An electromagnetic model is developed for predicting the microwave blackbody emission from the ocean surface over a wide range of frequencies, incidence…”
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A roughness correction algorithm for aquarius using MWR by Hejazin, Yazan, Jones, W. Linwood, El-Nimri, Salem

“…Aquarius/SAC-D is a collaborative earth science satellite mission, between NASA and the Argentine Space Agency, CONAE. The two microwave radiometers on the…”
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Aquarius faraday rotation observations by Liang Hong, El-Nimri, Salem, Jinzheng Peng

“…Aquarius is a space-borne 3-beam L-band microwave instrument with its radiometer measuring sea surface salinity and its scatterometer providing ocean roughness…”
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Sea surface salinity roughness correction at L-band for Aquarius instrument by Jones, W. Linwood, Hejazin, Yazan, El-Nimri, Salem

“…Aquarius/SAC-D is a joint NASA/CONAE (Argentine Space Agency) Earth Science satellite mission to measure the global sea surface salinity (SSS). The prime…”
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Signal Analysis of Microwave Radiometric Emissions in Hurricanes: Part 1 - Ocean Wind Speed Dependence by El-Nimri, S.F., Johnson, J.W., Jones, W.L.

“…Electrical engineering communications technologies contribute significantly to environmental remote sensing. In fact, microwave remote sensing is a primary…”
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Improved hurricane active/passive simulated wind vector retrievals by Alsweiss, Suleiman, Laupattarakasem, Peth, El-Nimri, Salem, Jones, W Linwood, Hristova-Veleva, Svetla

“…Microwave scatterometers are the standard for satellite ocean vector winds (OVW) measurements, and they provide the major source of global ocean surface winds…”
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An improved wide band ocean emissivity radiative transfer model by El-Nimri, S, Jones, W L, Crofton, S, Biswass, S

“…A new microwave radiative transfer ocean surface emissivity model for horizontal and vertical polarizations has been developed. Ocean radiative transfer models…”
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Hurricane Imaging Radiometer wind speed and rain rate retrieval: [Part-1] development of an improved ocean emissivity model by El-Nimri, S, Jones, L, Uhlhorn, E, Ruf, C, Black, P

“…A new microwave radiometric ocean surface emissivity model has been developed to support the analysis and design of the new airborne Hurricane Imaging…”
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Restrictions on the field of view for an undersampled 1-D synthetic thinned aperture radiometry by Lim, Boon H., Amarin, Ruba, El-Nimri, Salem, Johnson, James, Jones, Linwood, Ruf, Christopher S

“…Traditional radio astronomy formulation of the field of view (FOV) applied to a non-Nyquist spatially sampled synthetic thinned aperture radiometers appear to…”
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Instrument design simulations for synthetic aperture microwave radiometric imaging of wind speed and rain rate in hurricanes by Amarin, Ruba A., El-Nimri, Salem F., Johnson, James W., Jones, W. Linwood, Lim, Boon H., Ruf, Christopher S.

“…The measurement of peak winds in hurricanes is critical to forecasting intensity and direction prior to landfall. To date, the NOAA stepped frequency microwave…”
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Improved high wind speed retrievals using AMSR and the next generation NASA Dual Frequency Scatterometer by Laupattarakasem, Peth, Alsweiss, Suleiman, El-Nimri, Salem, Jones, W Linwood, Veleva, Svetla, Stiles, Bryan W, Rodriguez, Ernesto, Gaston, Robert W

“…Microwave scatterometer measurements are the standard for satellite ocean vector winds (OVW) measurements. Unfortunately, in extreme weather events, where high…”
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Hurricane Imaging Radiometer Wide Swath Simulation for Wind Speed and Rain Rate by El-Nimri, S.F., Alsweiss, S., Jones, W.L., Uhlhorn, E., Johnson, J.

“…There is a strong national interest in the observation of ocean surface winds with high spatial and temporal resolution for understanding tropical cyclones and…”
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