A dual-frequency rain profiling method without the use of a surface reference technique

Mardiana, Redy; Iguchi, Toshio; Takahashi, Nobuhiro

doi:10.1109/tgrs.2004.834647

Cited by 62 publications

(53 citation statements)

References 15 publications

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“…For a reasonable range of assumed gamma distribution shape parameters or snow mass densities, the overlapping Ku-and Ka-band measurements can be used to determine two parameters of the PSD (e.g., the median mass diameter and characteristic number concentration) at each range bin in the vertically sampled profile (Liao et al 2005). In addition, attenuation correction, which is key to the success of any radar algorithm at these frequencies, can be accomplished either through the use of the surface as reference target or by an iteration where the PSD itself is used in a stepwise correction procedure (e.g., Meneghini et al 1997;Mardiana et al 2004;Rose and Chandrasekar 2006). The DPR algorithms being developed provide instantaneous surface rainfall and vertical hydrometeor profiles at the pixel (~5 km horizontal, 125 m vertical) level as well as gridded space-time accumulations (GPM ATBD 2013; also see Table 5).…”

Section: Dpr Retrievalsmentioning

confidence: 99%

The Global Precipitation Measurement Mission

Hou¹,

Kakar²,

Neeck³

et al. 2014

Bull. Amer. Meteor. Soc.

2,247

1,394

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Section: Dpr Retrievalsmentioning

confidence: 99%

The Global Precipitation Measurement Mission

Hou¹,

Kakar²,

Neeck³

et al. 2014

Bull. Amer. Meteor. Soc.

2,247

1,394

View full text Add to dashboard Cite

“…These have been estimated from the samples using kernel density estimation [for an overview, see, e.g., Silverman (1986)]. The variables were chosen for further inspection on the basis of general importance in rainfall and radar studies (such as R, D 0 , and Z h ) or of specific interest expressed in recent studies-for example, the dual-frequency retrieval algorithms for the next-generation spaceborne radars use W, A h , and d R (Mardiana et al 2004;Kuo et al 2004).…”

Section: B Distributions Of Parametersmentioning

confidence: 99%

A Climatology of Disdrometer Measurements of Rainfall in Finland over Five Years with Implications for Global Radar Observations

Leinonen

Moisseev

Leskinen

et al. 2012

Journal of Applied Meteorology and Climatology

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To improve the understanding of high-latitude rain microphysics and its implications for the remote sensing of rainfall by ground-based and spaceborne radars, raindrop size measurements have been analyzed that were collected over five years with a Joss-Waldvogel disdrometer located in Jä rvenpä ä , Finland. The analysis shows that the regional climate is characterized by light rain and small drop size with narrow size distributions and that the mutual relations of drop size distribution parameters differ from those reported at lower latitudes. Radar parameters computed from the distributions demonstrate that the high latitudes are a challenging target for weather radar observations, particularly those employing polarimetric and dual-frequency techniques. Nevertheless, the findings imply that polarimetric ground radars can produce reliable ''ground truth'' estimates for space observations and identify dual-frequency radars utilizing a W-band channel as promising tools for observing rainfall in the high-latitude climate.

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“…The single-frequency iteration method is basically a modification from the dual-frequency iteration method that has been proposed in the literature (4) . The objective of the iteration method is to find the proper estimates of A(r k ) with the constraint that these estimates should reproduce the original measured Z m (r).…”

Section: Single-frequency Iteration Methodsmentioning

confidence: 99%

A Novel Single-Frequency Algorithm for TRMM Precipitation Radar

et al. 2007

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MemberThis paper describes a novel single-frequency algorithm to estimate the vertical profiles of drop size distribution (DSD) of rainfall. The algorithm, which does not rely on the surface echoes, is proposed to be adopted in the TRMM precipitation radar (PR). The basic principle is to seek the DSD that can not only reproduce the radar reflectivity profiles at a given wavelength but also the path attenuation that is used for the constraints prior to deriving the DSD profile. The algorithm adjusts the estimate of attenuation factor at the surface iteratively until this estimate retrieves the reflectivity factor that is equal to the original measured reflectivity factor. The algorithm is applied to the spaceborne TRMM/PR radar data. The comparison between the results derived from the Hitschfeld-Bordan (HB) method, Surface Reference Technique (SRT), current TRMM method, and the proposed method is presented and discussed.

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A dual-frequency rain profiling method without the use of a surface reference technique

Cited by 62 publications

References 15 publications

The Global Precipitation Measurement Mission

The Global Precipitation Measurement Mission

A Climatology of Disdrometer Measurements of Rainfall in Finland over Five Years with Implications for Global Radar Observations

A Novel Single-Frequency Algorithm for TRMM Precipitation Radar

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