Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7317
DC Field | Value | Language |
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dc.contributor.authorall | Marzano, F. S.; Sapienza University of Rome | en |
dc.contributor.authorall | Mori, S.; Sapienza University of Rome | en |
dc.contributor.authorall | Chini, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Pulvirenti, L.; Sapienza University of Rome | en |
dc.contributor.authorall | Pierdicca, N.; Sapienza University of Rome | en |
dc.contributor.authorall | Montopoli, M.; University of L’Aquila | en |
dc.contributor.authorall | Weinman, J. A.; University of Washington | en |
dc.date.accessioned | 2012-01-17T09:40:15Z | en |
dc.date.available | 2012-01-17T09:40:15Z | en |
dc.date.issued | 2011-03-11 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7317 | en |
dc.description.abstract | X-band Synthetic Aperture Radars (X-SARs), able to image the Earth’s surface at metric resolution, may provide a unique opportunity to measure rainfall over land with spatial resolution of about few hundred meters, due to the atmospheric moving-target degradation effects. This capability has become very appealing due to the recent launch of several X-SAR satellites, even though several remote sensing issues are still open. This work is devoted to: (i) explore the potential of X-band high-resolution detection and retrieval of rainfall fields from space using X-SAR signal backscattering amplitude and interferometric phase; (ii) evaluate the effects of spatial resolution degradation by precipitation and inhomogeneous beam filling when comparing to other satellite-based sensors. Our X-SAR analysis of precipitation effects has been carried out using both a TerraSAR-X (TSX) case study of Hurricane “Gustav” in 2008 over Mississippi (USA) and a COSMO-SkyMed (CSK) X-SAR case study of orographic rainfall over Central Italy in 2009. For the TSX case study the near-surface rain rate has been retrieved from the normalized radar cross section by means of a modified regression empirical algorithm (MREA). A relatively simple method to account for the geometric effect of X-SAR observation on estimated rainfall rate and firstorder volumetric effects has been developed and applied. The TSX-retrieved rain fields have been compared to those estimated from the Next Generation Weather Radar (NEXRAD) in Mobile (AL, USA). The rainfall detection capability of X-SAR has been tested on the CSK case study using the Correspondence to: F. S. Marzano (marzano@die.uniroma1.it) repeat-pass coherence response and qualitatively comparing its signature with ground-based Mt. Midia C-band radar in central Italy. A numerical simulator to represent the effect of the spatial resolution and the antenna pattern of TRMMsatellite Precipitation Radar (PR) and Microwave Imager (TMI), using high-resolution TSX-retrieved rain images, has been also set up in order to evaluate the rainfall beam filling phenomenon. As expected, the spatial average can modify the statistics of the high-resolution precipitation fields, strongly reducing its dynamics in a way non-linearly dependent on the rain rate local average value. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Hydrology and Earth System Science | en |
dc.relation.ispartofseries | /15 (2011) | en |
dc.subject | rain | en |
dc.subject | SAR | en |
dc.title | Potential of High-resolution Detection and Retrieval of Precipitation Fields from X-band Spaceborne Synthetic Aperture Radar over land | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 859-875 | en |
dc.identifier.URL | http://www.hydrol-earth-syst-sci.net/15/859/2011/ | en |
dc.subject.INGV | 05. General::05.08. Risk::05.08.02. Hydrogeological risk | en |
dc.identifier.doi | 10.5194/hess-15-859-2011 | en |
dc.description.obiettivoSpecifico | 1.10. TTC - Telerilevamento | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Marzano, F. S. | en |
dc.contributor.author | Mori, S. | en |
dc.contributor.author | Chini, M. | en |
dc.contributor.author | Pulvirenti, L. | en |
dc.contributor.author | Pierdicca, N. | en |
dc.contributor.author | Montopoli, M. | en |
dc.contributor.author | Weinman, J. A. | en |
dc.contributor.department | Sapienza University of Rome | en |
dc.contributor.department | Sapienza University of Rome | en |
dc.contributor.department | Sapienza University of Rome | en |
dc.contributor.department | Sapienza University of Rome | en |
dc.contributor.department | University of L’Aquila | en |
dc.contributor.department | University of Washington | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Luxembourg Institute of Science and Technology (LIST) | - |
crisitem.author.dept | Sapienza University of Rome | - |
crisitem.author.dept | Sapienza Università di Roma | - |
crisitem.author.dept | University of Washington | - |
crisitem.author.orcid | 0000-0002-5873-204X | - |
crisitem.author.orcid | 0000-0002-3392-8687 | - |
crisitem.author.orcid | 0000-0003-0099-0393 | - |
crisitem.classification.parent | 05. General | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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2011_HESS_Marzano_et_al.df.pdf | 3.92 MB | Adobe PDF | View/Open |
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