Study of melting layer features related to atmospheric parameters over a tropical location

Saha, Pallabi; Rakshit, Gargi; Maitra, Animesh

doi:10.1016/j.asr.2023.03.013

Cited by 1 publication

(1 citation statement)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This agrees with the proposed hypothesis where free tropospheric turbulence above the ABL, impacts the rain DSD leading to the enhanced breakup of larger raindrops. On the other hand, during stratiform rain, the drop densities are consistently weaker than the convective case and they show identical distributions up to 4 km followed by an expected increment corresponding to bright band occurrence around 4.5 km (Figure 5c) (Saha et al, 2023). Further, no abrupt decline in densities of larger drops above boundary layer height is visible during the stratiform rain event, thereby supporting the absence of any instabilities unlike the convective case leading to no prominent breakup of larger drops in this case.…”

Section: Radar and Radiometric Measurements For Different Case Studie...mentioning

confidence: 91%

Micro Rain Radar and Radiometric Measurements to Unravel Contrasting Features of Rain Microstructure Below and Above the Boundary Layer

Rakshit,

Chakraborty,

Maitra

2024

Radio Science

Self Cite

View full text Add to dashboard Cite

Ka‐band Micro rain Doppler radar is an effective tool to investigate the profiles of precipitation microstructure in terms of the raindrop size distribution (DSD). The DSD parameters that vary appreciably with height are indicative of the associated atmospheric phenomena. Hence the present investigation endeavors to put light on the underlying physical processes responsible for the evolution of varied rain microstructure profiles using micro rain radar (MRR), and radiometric measurements complemented with re‐analysis outputs over an urban tropical location, Kolkata (22.57°N, 88.37°E), India. MRR unravels the prevalence of significant biases in the typical power law relationship (Dm = aRb) between rain rate (R) and mass‐weighted mean drop diameter (Dm) along the rain height, especially during intense convective rain events, above the atmospheric boundary layer (ABL). Consequently, an alternative empirical relation appropriate to account for the R‐Dm variability above the ABL is proposed. Further, radiometric measurements and re‐analysis outputs reveal that the presence of atmospheric instabilities coupled with wind shear impacts above the ABL contributes to the enhanced breakup of raindrops and the deviations in the usual R‐Dm relationship. Thus, the present study intends to highlight the applicability of ground‐based radar measurements over the tropics to devise quantitative precipitation algorithms for reliable rain estimates.

show abstract

Section: Radar and Radiometric Measurements For Different Case Studie...mentioning

confidence: 91%

Micro Rain Radar and Radiometric Measurements to Unravel Contrasting Features of Rain Microstructure Below and Above the Boundary Layer

Rakshit,

Chakraborty,

Maitra

2024

Radio Science

Self Cite

View full text Add to dashboard Cite

show abstract

Study of melting layer features related to atmospheric parameters over a tropical location

Cited by 1 publication

References 49 publications

Micro Rain Radar and Radiometric Measurements to Unravel Contrasting Features of Rain Microstructure Below and Above the Boundary Layer

Micro Rain Radar and Radiometric Measurements to Unravel Contrasting Features of Rain Microstructure Below and Above the Boundary Layer

Contact Info

Product

Resources

About