气候变化领域集成服务门户(CCPortal): Retrieval of snow precipitation rate from polarimetric X-band radar measurements in Southern Italy Apennine mountains

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DOI	10.1016/j.atmosres.2019.104796
	Retrieval of snow precipitation rate from polarimetric X-band radar measurements in Southern Italy Apennine mountains
	Capozzi V.; Montopoli M.; Bracci A.; Adirosi E.; Baldini L.; Vulpiani G.; Budillon G.
发表日期	2020
ISSN	0169-8095
卷号	236
英文摘要	Recently, the interest on snowfall remote sensing and quantitative precipitation estimation is becoming a popular topic by both the scientific and operational communities. As a matter of fact, snow plays a key role in the hydrological cycle and Earth energy budget and clearly represents a meteorological hazard that can seriously compromise human activities and properties. In this study, we used a dual-polarization X-band weather radar to quantify the near-surface liquid equivalent snowfall rate, proposing a new parameterization based on the use of radar reflectivity factor and specific differential phase shift. This effort adds to several recent works, mainly focused on S-band weather radar systems, demonstrating that the use of the radar specific differential phase shift (Kdp) is able to enhance the estimation precision with respect to the more customary approaches making use of radar reflectivity factor alone. To demonstrate this concept also at X-band, some case studies were collected from December 2018 to May 2019 in the Southern Apennine Mountains in the area of Naples (Italy). They were used to compare the proposed radar based liquid equivalent snowfall rate estimations, based on Z and Kdp, with reference laser-optical disdrometer time series collected in the close reference site of Montevergine observatory. Findings show that also at X band the use of Kdp produces a better score between the radar-derived liquid equivalent snowfall rate and the reference one from the disdrometer. © 2019 Elsevier B.V.
英文关键词	Disdrometer; Dual polarization; Snowfall; Weather radar; X-band
学科领域	Budget control; Liquids; Meteorological radar; Polarization; Reflection; Remote sensing; Snow; Disdrometers; Dual-polarizations; Estimation precision; Operational community; Quantitative precipitation estimation; Radar reflectivity factor; Specific differential phase; X bands; Radar measurement; energy budget; hydrological cycle; meteorological hazard; parameterization; precipitation assessment; quantitative analysis; radar; remote sensing; snow; weather; Apennines; Campania [Italy]; Italy; Naples; Napoli [Campania]
语种	英语
scopus关键词	Budget control; Liquids; Meteorological radar; Polarization; Reflection; Remote sensing; Snow; Disdrometers; Dual-polarizations; Estimation precision; Operational community; Quantitative precipitation estimation; Radar reflectivity factor; Specific differential phase; X bands; Radar measurement; energy budget; hydrological cycle; meteorological hazard; parameterization; precipitation assessment; quantitative analysis; radar; remote sensing; snow; weather; Apennines; Campania [Italy]; Italy; Naples; Napoli [Campania]
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120490
作者单位	Department of Science and Technology, University of Naples “Parthenope”, Centro Direzionale di Napoli80143, Italy; Institute of Atmospheric Sciences and Climate (ISAC), Area di ricerca "Tor Vergata” (ARTOV), Via Fosso del Cavaliere, 100, Rome, I-00133, Italy; Presidency of the Council of Ministers – Dept. of Civil Protection, Rome, Italy, Via Vitorchiano 4, Rome, 00189, Italy; Department of Physics and Astronomy, University of Bologna, Bologna, Italy; Centre of Excellence in Telesensing of Environment and Model Prediction of Severe events (CETEMPS), University of L'Aquila, via vetoio, L'Aquila, 67100, Italy
推荐引用方式 GB/T 7714	Capozzi V.,Montopoli M.,Bracci A.,et al. Retrieval of snow precipitation rate from polarimetric X-band radar measurements in Southern Italy Apennine mountains[J],2020,236.
APA	Capozzi V..,Montopoli M..,Bracci A..,Adirosi E..,Baldini L..,...&Budillon G..(2020).Retrieval of snow precipitation rate from polarimetric X-band radar measurements in Southern Italy Apennine mountains.Atmospheric Research,236.
MLA	Capozzi V.,et al."Retrieval of snow precipitation rate from polarimetric X-band radar measurements in Southern Italy Apennine mountains".Atmospheric Research 236(2020).