Show simple item record

contributor authorNaud, C. M.
contributor authorMuller, J-P.
contributor authorSlack, E. C.
contributor authorWrench, C. L.
contributor authorClothiaux, E. E.
date accessioned2017-06-09T16:47:32Z
date available2017-06-09T16:47:32Z
date copyright2005/06/01
date issued2005
identifier issn0894-8763
identifier otherams-74180.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4216376
description abstractThe Chilbolton 3-GHz Advanced Meteorological Radar (CAMRa), which is mounted on a fully steerable 25-m dish, can provide three-dimensional information on the presence of hydrometeors. The potential for this radar to make useful measurements of low-altitude liquid water cloud structure is investigated. To assess the cloud-height assignment capabilities of the 3-GHz radar, low-level cloud-top heights were retrieved from CAMRa measurements made between May and July 2003 and were compared with cloud-top heights retrieved from a vertically pointing 94-GHz radar that operates alongside CAMRa. The average difference between the 94- and 3-GHz radar-derived cloud-top heights is shown to be ?0.1 ± 0.4 km. To assess the capability of 3-GHz radar scans to be used for satellite-derived cloud-top-height validation, multiangle imaging spectroradiometer (MISR) cloud-top heights were compared with both 94- and 3-GHz radar retrievals. The average difference between 94-GHz radar and MISR cloud-top heights is shown to be 0.1 ± 0.3 km, while the 3-GHz radar and MISR average cloud-top-height difference is shown to be ?0.2 ± 0.6 km. In assessing the value of the CAMRa measurements, the problems associated with low-reflectivity values from stratiform liquid water clouds, ground clutter, and Bragg scattering resulting from turbulent mixing are all addressed. It is shown that, despite the difficulties, the potential exists for CAMRa measurements to contribute significantly to liquid water cloud-top-height retrievals, leading to the production of two-dimensional transects (i.e., maps) of cloud-top height.
publisherAmerican Meteorological Society
titleAssessment of the Performance of the Chilbolton 3-GHz Advanced Meteorological Radar for Cloud-Top-Height Retrieval
typeJournal Paper
journal volume44
journal issue6
journal titleJournal of Applied Meteorology
identifier doi10.1175/JAM2244.1
journal fristpage876
journal lastpage887
treeJournal of Applied Meteorology:;2005:;volume( 044 ):;issue: 006
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record