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Backscattering enhancement for Marshall-Palmer distributed rains for a W-band nadir-pointing radar with a finite beam width

S. Kobayashi, S. Tanelli, E. Im, T. Oguchi
Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05.  
Results will be used to discuss the multiple scattering effects on the backscatter measurements acquired by a W-band (95-GHz) nadir-pointing radar.  ...  A finite beam theory of the multiple scattering associated with backscattering enhancement was derived in a previous study by the authors for a layer of spherical raindrops.  ...  ACKNOWLEDGMENT The research described in this paper was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration  ... 
doi:10.1109/igarss.2005.1526412 dblp:conf/igarss/KobayashiTIO05 fatcat:wztjtvgg3ndh5flw7qv42ygy7m

Multiple-scattering in radar systems: A review

Alessandro Battaglia, Simone Tanelli, Satoru Kobayashi, Dusan Zrnic, Robin J. Hogan, Clemens Simmer
2010 Journal of Quantitative Spectroscopy and Radiative Transfer  
This is the case if the transport mean-free-path becomes comparable with the instrument footprint (determined by the antenna beam-width and the platform altitude).  ...  Examples of simulated radar backscattering profiles are provided with particular emphasis given to situations in which the multiple scattering contributions become comparable or overwhelm the single scattering  ...  Valery Melnikov maintained calibration of the NOAA/NSSL polarimetric radar and collected data, whereas Jelena Andric produced Figures 8-10 .  ... 
doi:10.1016/j.jqsrt.2009.11.024 fatcat:ywtip2dgabaivcwvz5twsxql5a

Electromagnetic wave propagation in rain and polarization effects

Sogo OKAMURA, Tomohiro OGUCHI
2010 Proceedings of the Japan Academy. Series B, Physical and biological sciences  
Starting from a recount of our past findings, we will discuss developments with these and how they are connected with subsequent research.  ...  This paper summarizes our study on microwave and millimeter-wave propagation in rain with special emphasis on the effects of polarization.  ...  Without their dedication, it would have been impossible for the rain-attenuation measurements to have been made. The authors would also like to thank Dr. K. Ono (KDDI Corporation) and Prof. T.  ... 
doi:10.2183/pjab.86.539 pmid:20551593 pmcid:PMC3081171 fatcat:zixrtvgfsjhgfdc3r7kxxzzt5i

Evidence of Rainfall Signatures on X-Band Synthetic Aperture Radar Imagery Over Land

F.S. Marzano, S. Mori, J.A. Weinman
2010 IEEE Transactions on Geoscience and Remote Sensing  
A detailed data analysis for the case study of Hurricane "Gustav" on September 2, 2008, is carried out to assess a quantitative correlation among X-SAR response and near-surface precipitation rain rate  ...  The TSX-retrieved rain fields are compared to those estimated from the Next Generation Weather Radar (NEXRAD) in Mobile (Alabama, U.S.), showing a root-mean-square error less than 15 mm/h and a correlation  ...  :8080), A.  ... 
doi:10.1109/tgrs.2009.2034843 fatcat:3mbenliwhfglfjxgdmwaw2dane

Remote Sensing of Precipitation from Airborne and Spaceborne Radar [chapter]

Stephen J. Munchak
2018 Remote Sensing of Aerosols, Clouds, and Precipitation  
This chapter describes some fundamental properties of radar measurements and their dependence on the particle size distribution (PSD) and radar frequency.  ...  The inverse problem of solving for the vertical profile of PSD from a profile of measured reflectivity is stated as an optimal estimation problem for single-and multi-frequency measurements.  ...  Robert Meneghini (NASA GSFC) and an anonymous reviewer for providing comments that improved the clarity and accuracy of this chapter.  ... 
doi:10.1016/b978-0-12-810437-8.00013-x fatcat:xkegqsysnbgt7eghu7ytu3w5pu

Performance assessment of a triple-frequency spaceborne cloud–precipitation radar concept using a global cloud-resolving model

J. Leinonen, M. D. Lebsock, S. Tanelli, K. Suzuki, H. Yashiro, Y. Miyamoto
2015 Atmospheric Measurement Techniques Discussions  
An evaluation of a spaceborne three-frequency Ku/Ka/W-band radar system is presented in this study, based on modeling radar reflectivities from the results of a global cloud-resolving model with a 875  ...  The effects of attenuation and multiple scattering on the radar signal are modeled using a radiative transfer model, while nonuniform beam filling is reproduced with spatial averaging.  ...  We would like to thank three anonymous reviewers for their helpful and constructive comments.  ... 
doi:10.5194/amtd-8-4137-2015 fatcat:a2e7raizbzdunl36v2bwkh6tpu

Performance assessment of a triple-frequency spaceborne cloud–precipitation radar concept using a global cloud-resolving model

J. Leinonen, M. D. Lebsock, S. Tanelli, K. Suzuki, H. Yashiro, Y. Miyamoto
2015 Atmospheric Measurement Techniques  
An evaluation of a spaceborne three-frequency Ku-/Ka-/W-band radar system is presented in this study, based on modeling radar reflectivities from the results of a global cloud-resolving model with a 875  ...  The effects of attenuation and multiple scattering on the radar signal are modeled using a radiative transfer model, while nonuniform beam filling is reproduced with spatial averaging.  ...  We would like to thank three anonymous reviewers for their helpful and constructive comments.  ... 
doi:10.5194/amt-8-3493-2015 fatcat:hvkgb56vtffmjf373zveknvobm

National Center for Atmospheric Research

1999 Disaster Prevention and Management  
The radar operates at 13.8 GHz (~2 cm wavelength) and has a gate spacing of 0.25 km. The beam width is 0.71 giving a foot print of 4.3 km at nadir.] Lakshmanan, V., and A.  ...  Network-derived Z-S relationships for two storms had a much smaller exponent for Z H than the Marshall-Palmer relationship and had smaller bias errors.  ...  For rain this consistency can be used to calibrate the reflectivity (Z) of the radar to within 0.5 dB, providing the correct rain drop shape model is used.  ... 
doi:10.1108/dpm.1999.07308aag.036 fatcat:3ah6tzr4k5gilhcbhqlfzkzcfa

The National Center for Atmospheric Research

1999 Disaster Prevention and Management  
The radar operates at 13.8 GHz (~2 cm wavelength) and has a gate spacing of 0.25 km. The beam width is 0.71 giving a foot print of 4.3 km at nadir.] Lakshmanan, V., and A.  ...  Network-derived Z-S relationships for two storms had a much smaller exponent for Z H than the Marshall-Palmer relationship and had smaller bias errors.  ...  For rain this consistency can be used to calibrate the reflectivity (Z) of the radar to within 0.5 dB, providing the correct rain drop shape model is used.  ... 
doi:10.1108/dpm.1999.07308aag.035 fatcat:lys575gn4vcfhghzsruwmnjqy4

Scattering of Ice Particles at Microwave Frequencies: A Physically Based Parameterization

Min-Jeong Kim, Mark S. Kulie, Chris O'Dell, Ralf Bennartz
2007 Journal of Applied Meteorology and Climatology  
This paper presents a new, purely physical approach to simulate ice-particle scattering at microwave frequencies.  ...  level through derived radar reflectivity-snow water content (Z-M ) relationships.  ...  Michelson at the Swedish Meteorological and Hydrological Institute for providing the BALTRAD radar data and to Grant W. Petty for many useful discussions.  ... 
doi:10.1175/jam2483.1 fatcat:jnpqq6jbhjcmvk4wzriziulmhm

programs

1978 Bulletin of The American Meteorological Society - (BAMS)  
Effects of particulate complex refractive index and particle-size distribution variations on atmospheric extinction and absorption for visible through middle IR wavelengths.  ...  The observations reveal large drop spectra emanating from cloud base with low concentrations of small drops compared to Marshall and Palmer distributions.  ...  These measurements, which were obtained as part of the CYCLES Project, show that particles ^>1 mm in dimension closely follow a Marshall-Palmer exponential size distribution.  ... 
doi:10.1175/1520-0477-59.4.461 fatcat:jvk27wtrefel7hiajjfr5g2wvi

Meteorology and Oceanography

1952 Physics today  
Hell, A. Noel and J.  ...  Acknowledgements: We thank the staff at EUMETSAT for help with the Meteosat data and the BADC for providing the ECMWF analyses. ACKNOWLEDGMENTS The authors are grateful to Prof.  ...  This kind of horizontal rain field distribution is close to those observed with shipborne radars in the AIP-3 during TOGA-COARE (Ebert 1996) cases.  ... 
doi:10.1063/1.3067492 fatcat:gpzkh2et5ndj5lcss2jsmgxbiy

Investigating the Sensitivity of Spaceborne GNSS-R Measurements to Ocean Surface Winds and Rain [article]

Rajeswari Balasubramaniam, University, My
2021
Next, we study the impact of rain on CYGNSS measurements. At L-band rain has a negligible impact on the transmitted signal in terms of path attenuation. However, there are [...]  ...  However, the sea age and fetch length conditions inside a hurricane are in general not consistent with a fully developed sea state.  ...  Rain induced local winds We first derive the drop size distribution of the raindrops using the widely used Marshall-Palmer exponential rain drop distribution (Marshall and Mc. K. Palmer , 1948) .  ... 
doi:10.7302/63 fatcat:bimpw23o5bgpzazjr5zmnpzewu

Antarctic climate change and the environment

P. Convey, R. Bindschadler, G. di Prisco, E. Fahrbach, J. Gutt, D.A. Hodgson, P.A. Mayewski, C.P. Summerhayes, J. Turner
2009 Antarctic Science  
The Antarctic is a highly coupled system with non-linear interactions between the atmosphere, ocean, ice and biota, along with complex links to the rest of the Earth system.  ...  We hope that it will be of value to all scientists with an interest in the Antarctic continent and the Southern Ocean, policy makers and those concerned with the deployment of observing systems and the  ...  Mass balance of the Lambert Glacier-Amery Ice shelf system, East Antarctica: a comparison of computed balance fluxes and measured fluxes, J. Glaciol  ... 
doi:10.1017/s0954102009990642 fatcat:zaj57sp4wzechlgadi7rlq5sni

A survey of selected aviation weather products

Thomas W. Schlatter
2012
In Fig. 5 .3, ∆x refers to the grid-point spacing, approximately 12 km for the NAM NMM-B. Acknowledgments I especially thank John C.  ...  Chris Velden gave a status report on feature tracking by satellite for the inference of atmospheric winds.  ...  , which is defined by a Marshall-Palmer drop-size distribution and a fall velocity.  ... 
doi:10.7289/v5/tm-oar-gsd-55 fatcat:2p6pxz37nzfvtifgggfidyy7xa