Estimate of Precipitation from the Dual-Beam Airborne Radars in TOGA COARE. Part II: Precipitation Efficiency in the 9 February 1993 MCS

Oury, Stéphane; Dou, Xiankang; Testud, J.

doi:10.1175/1520-0450(2000)039<2371:eopftd>2.0.co;2

Cited by 7 publications

(2 citation statements)

References 17 publications

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“…As we known, the velocity of the rain is modulated by the wind speed. So the three domain wind vector can be retrieved using the rain echoes from at least two pitching angles [4]. At the same time, the wind vector of sea surface can be retrieved from the echoes of different azimuth angles.…”

Section: Main Principlesmentioning

confidence: 99%

Wind and precipitation joint observation using airborne scatterometer

Zhu

Dong

Lang

2012

2012 IEEE International Geoscience and Remote Sensing Symposium

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An airborne multi-pencil beam rotating scatterometer is introduced in this paper. Multi-pencil beam scatterometer can obtain echoes of sea surface and precipitation simultaneously. When the radar system parameters and retrieving arithmetic are carefully designed, sea surface wind vector, three Domain wind vector above the sea and the vertical structure of the precipitation can be refined from the multi-angle echoes. In this paper, the key technologies, such as precipitation and sea surface decoupling arithmetic and pulse compression with low side lobe arithmetic are applied to obtain the wind vector and precipitation structure.

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Section: Main Principlesmentioning

confidence: 99%

Wind and precipitation joint observation using airborne scatterometer

Zhu

Dong

Lang

2012

2012 IEEE International Geoscience and Remote Sensing Symposium

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“…While there have been some studies attempting to estimate precipitation efficiency at storm scales (e.g., Braham, ; Market et al, ; Newton, ), these are based on small numbers of events and are located outside of the tropics. Some studies have attempted to estimate precipitation efficiency using observations for single events in the tropics (e.g., Chong & Hauser, ; Oury et al, ), but such analyses cannot be used to infer relationships between precipitation efficiency and the large‐scale state of the atmosphere. Bailey et al () estimate precipitation efficiency for a location in the subtropics, although their results are obtained indirectly through the use of water vapor isotope measurements.…”

Section: Introductionmentioning

confidence: 99%

Convective Precipitation Efficiency Observed in the Tropics

Narsey

Jakob

Singh

et al. 2019

Geophysical Research Letters

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Precipitation efficiency refers to the fraction of condensate in the atmosphere that reaches the surface as precipitation. A high‐quality data set of radar‐estimated precipitation rates and convective scale vertical velocity near Darwin, Australia, is used to construct the first estimate of precipitation efficiency at convective scales for a long record of observations in the tropics. It is found that precipitation efficiency increases with precipitation rate and midtropospheric humidity and decreases with increasing convective available potential energy and surface temperature. Precipitation efficiency is largest under moist monsoonal conditions and smallest during monsoon break periods, which are characterized by a drier free troposphere. However, these differences in efficiency do not translate to differences in the instantaneous precipitation rate across the synoptic regimes because of a compensating change in the net condensation rate. This is driven by variations in cloud updraft velocity, which is larger in drier environments than in moist environments.

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Precipitation Measurements from Space

Testud¹

2004

Weather Radar

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Estimate of Precipitation from the Dual-Beam Airborne Radars in TOGA COARE. Part II: Precipitation Efficiency in the 9 February 1993 MCS

Cited by 7 publications

References 17 publications

Wind and precipitation joint observation using airborne scatterometer

Wind and precipitation joint observation using airborne scatterometer

Convective Precipitation Efficiency Observed in the Tropics

Precipitation Measurements from Space

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