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contributor authorP. C.,, Shakti
contributor authorMaki, M.
contributor authorShimizu, S.
contributor authorMaesaka, T.
contributor authorKim, D.-S.
contributor authorLee, D.-I.
contributor authorIida, H.
date accessioned2017-06-09T17:15:15Z
date available2017-06-09T17:15:15Z
date copyright2013/06/01
date issued2013
identifier issn1525-755X
identifier otherams-81892.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4224945
description abstractwo approaches to correcting the partial beam blockage of radar reflectivity in mountainous areas were evaluated using X-band dual polarization radar data from the Hakone mountain region, Kanto, Japan. The comparatively simple digital elevation model (DEM) method calculates the power loss in the received signal based on the geometrical relationship between radar beams and a DEM. The second approach, the modified DEM method, attempts to account for unknown power losses related to ground clutter, hardware calibration errors, etc. Comparison between ground data and reflectivity data corrected by both methods suggests that the DEM method alone was insufficient to correct beam blockage problems but that the modified DEM data were in generally good agreement with the ground data. The authors also estimated 10-min rainfall amounts using reflectivity corrected by the modified DEM method and compared these with data from a network of rain gauges in the mountainous region. In general, the results show good agreement between radar estimates and rain gauge measurements. On the basis of their results, the authors conclude that the modified DEM method offers a suitable solution to the problem of beam blockage in mountainous regions, provided that the beam blockage rate is less than 80%.
publisherAmerican Meteorological Society
titleCorrection of Reflectivity in the Presence of Partial Beam Blockage over a Mountainous Region Using X-Band Dual Polarization Radar
typeJournal Paper
journal volume14
journal issue3
journal titleJournal of Hydrometeorology
identifier doi10.1175/JHM-D-12-077.1
journal fristpage744
journal lastpage764
treeJournal of Hydrometeorology:;2013:;Volume( 014 ):;issue: 003
contenttypeFulltext


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