Search Results - "Kumjian, Matthew R."

Confronting the Challenge of Modeling Cloud and Precipitation Microphysics by Morrison, Hugh, Lier‐Walqui, Marcus, Fridlind, Ann M., Grabowski, Wojciech W., Harrington, Jerry Y., Hoose, Corinna, Korolev, Alexei, Kumjian, Matthew R., Milbrandt, Jason A., Pawlowska, Hanna, Posselt, Derek J., Prat, Olivier P., Reimel, Karly J., Shima, Shin‐Ichiro, Diedenhoven, Bastiaan, Xue, Lulin

“…In the atmosphere, microphysics refers to the microscale processes that affect cloud and precipitation particles and is a key linkage among the various…”
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Bulk-Density Representations of Branched Planar Ice Crystals: Errors in the Polarimetric Radar Variables by Schrom, Robert S., Kumjian, Matthew R.

“…Recent interest in interpreting polarimetric radar observations of ice and evaluating microphysical model output with these observations has highlighted the…”
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Polarimetric Signatures in Supercell Thunderstorms by Kumjian, Matthew R., Ryzhkov, Alexander V.

“…Data from polarimetric radars offer remarkable insight into the microphysics of convective storms. Numerous tornadic and nontornadic supercell thunderstorms…”
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Polarimetric Radar Signatures of Dendritic Growth Zones within Colorado Winter Storms by Schrom, Robert S., Kumjian, Matthew R., Lu, Yinghui

“…X-band polarimetric radar observations of winter storms in northeastern Colorado on 20–21 February, 9 March, and 9 April 2013 are examined. These observations…”
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A Probabilistic Radar Forward Model for Branched Planar Ice Crystals by Schrom, Robert S., Kumjian, Matthew R.

“…Polarimetric radar measurements provide information about ice particle growth and offer the potential to evaluate and better constrain ice microphysical…”
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High-Resolution Polarimetric Radar Observations of Snow-Generating Cells by Kumjian, Matthew R., Rutledge, Steven A., Rasmussen, Roy M., Kennedy, Patrick C., Dixon, Mike

“…High-resolution X-band polarimetric radar data were collected in 19 snowstorms over northern Colorado in early 2013 as part of the Front Range Orographic…”
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Polarimetric Signatures above the Melting Layer in Winter Storms: An Observational and Modeling Study by Andrić, Jelena, Kumjian, Matthew R., Zrnić, Dušan S., Straka, Jerry M., Melnikov, Valery M.

“…Polarimetric radar observations above the melting layer in winter storms reveal enhanced differential reflectivityZ DRand specific differential phase shiftK…”
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Dual-Polarization Radar Fingerprints of Precipitation Physics: A Review by Kumjian, Matthew R, Reimel, Karly J, Lier-Walqui, Marcus van, Morrison, Hughbert C

“…This article reviews how precipitation microphysics processes are observed in dual-polarization radar observations. These so-called “fingerprints” of…”
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The Impact of Evaporation on Polarimetric Characteristics of Rain: Theoretical Model and Practical Implications by Kumjian, Matthew R., Ryzhkov, Alexander V.

“…Soon, the National Weather Service’s Weather Surveillance Radar-1988 Doppler (WSR-88D) network will be upgraded to allow dual-polarization capabilities…”
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A Dual-Polarization Radar Signature of Hydrometeor Refreezing in Winter Storms by Kumjian, Matthew R., Ryzhkov, Alexander V., Reeves, Heather D., Schuur, Terry J.

“…Polarimetric radar measurements in winter storms that produce ice pellets have revealed a unique signature that is indicative of ongoing hydrometeor…”
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Examining Storm Asymmetries in Hurricane Irma (2017) Using Polarimetric Radar Observations by Didlake, Anthony C., Kumjian, Matthew R.

“…Dual‐polarization radar observations of Hurricane Irma (2017) provide new insight into the microphysical structure of a mature tropical cyclone that can be…”
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Differentiating Between Tornadic and Nontornadic Supercells Using Polarimetric Radar Signatures of Hydrometeor Size Sorting by Loeffler, Scott D., Kumjian, Matthew R., Jurewicz, Michael, French, Michael M.

“…Supercell storms are the most prolific producers of violent tornadoes, though only a fraction of supercells produce tornadoes. Past research into the…”
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Microphysical Insights into Ice Pellet Formation Revealed by Fully Polarimetric Ka-Band Doppler Radar by Kumjian, Matthew R., Tobin, Dana M., Oue, Mariko, Kollias, Pavlos

“…Fully polarimetric scanning and vertically pointing Doppler spectral data from the state-of-the-art Stony Brook University Ka-band Scanning Polarimetric Radar…”
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Connecting Microphysical Processes in Colorado Winter Storms with Vertical Profiles of Radar Observations by Schrom, Robert S., Kumjian, Matthew R.

“…To better connect radar observations to microphysical processes, the authors analyze concurrent polarimetric radar observations at vertical incidence and…”
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Effects of precipitation type on crash relative risk estimates in Kansas by Tobin, Dana M., Kumjian, Matthew R., Black, Alan W.

“…•Crash relative risk is dependent on precipitation type.•Relative risk estimates during freezing rain are higher than during rain and snow.•Single-vehicle…”
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Polarimetric radar and aircraft observations of saggy bright bands during MC3E by Kumjian, Matthew R., Mishra, Subashree, Giangrande, Scott E., Toto, Tami, Ryzhkov, Alexander V., Bansemer, Aaron

“…Polarimetric radar observations increasingly are used to understand cloud microphysical processes, which is critical for improving their representation in…”
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Polarimetric Radar Characteristics of Melting Hail. Part I: Theoretical Simulations Using Spectral Microphysical Modeling by Ryzhkov, Alexander V., Kumjian, Matthew R., Ganson, Scott M., Khain, Alexander P.

“…Spectral (bin) microphysics models are used to simulate polarimetric radar variables in melting hail. Most computations are performed in a framework of a…”
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Insights into riming and aggregation processes as revealed by aircraft, radar, and disdrometer observations for a 27 April 2011 widespread precipitation event by Giangrande, Scott E., Toto, Tami, Bansemer, Aaron, Kumjian, Matthew R., Mishra, Subhashree, Ryzhkov, Alexander V.

“…This study presents aircraft spiral ascent and descent observations intercepting a transition to riming processes during widespread stratiform precipitation…”
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Polarimetric Radar Characteristics of Melting Hail. Part II: Practical Implications by Ryzhkov, Alexander V., Kumjian, Matthew R., Ganson, Scott M., Zhang, Pengfei

“…The results of theoretical modeling in Part I are utilized to develop practical recommendations for developing the algorithms for hail detection and…”
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Automating the analysis of hailstone layers by Soderholm, Joshua S, Kumjian, Matthew R

“…The layered structures inside hailstones provide a direct indication of their shape and properties at various stages during growth. Given the myriad of…”
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