Macrophysical and Microphysical Characteristics of Convective Rain Cells Observed During SOS-CHUVA

Autor(es)

Cecchini, Micael Amore ^[1] ; Silva Dias, Maria A. F. ^[1] ; Machado, Luiz A. T. ^{[2, 3]} ; Morales Rodriguez, Carlos A. ^[1] ; Biscaro, Thiago ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer IAG, Sao Paulo - Brazil

^[2] Max Planck Inst Chem, Multiphase Chem Dept, Mainz - Germany

^[3] Inst Nacl Pesquisas Espaciais INPE, Ctr Previsao Tempo & Estudos Climat CPTEC, Cachoeira Paulista - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES; v. 125, n. 13 JUL 16 2020.
• Citações Web of Science: 0

Resumo

In this study, we present a methodology to study the properties of convective precipitation in a holistic way. We apply a tracking algorithm to X-band radar retrievals to store Lagrangian properties of convective rain cells. The height of maximum reflectivity (H-Zmax) is combined with the vertically integrated water (VIW) to provide a useful parameter space to constrain the microphysical study of the cells. This parameter determines most of the shape of the vertical structure of rain cells, where VIW acts as a modulating factor. Decreases inH(Zmax)are likely associated to enhanced collection processes, which favor growth of reflectivity (Z), differential reflectivity (Z(dr)), differential attenuation (K-dp), and droplet mean volume diameter (D-0). This growth is further favored under higher VIW conditions. By discriminating the microphysical analysis byH(Zmax)and VIW, droplet growth can be analyzed in different types of rain cells and stages of life cycle. Overall, the results presented here can help understand the constraints of the vertical structure of rain cells and microphysical properties from the combination ofH(Zmax)and VIW. Contrary to the microphysical retrievals themselves, computations ofH(Zmax)and VIW do not depend on dual polarization. (AU)

• Processo FAPESP: 17/04654-6 - Estudo dos espaços de fase macro e microfísicos em tempestades: perspectivas para o nowcasting
• Beneficiário: Micael Amore Cecchini
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/17047-0 - O ciclo de vida de aerossóis e nuvens na Amazônia: emissões biogênicas, emissões de queimadas e impactos no ecossistema
• Beneficiário: Paulo Eduardo Artaxo Netto
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Processo FAPESP: 15/14497-0 - Previsão imediata de tempestades intensas e entendimento dos processos físicos no interior das nuvens: o SOS-CHUVA (Sistema de Observação e Previsão de Tempo Severo)
• Beneficiário: Luiz Augusto Toledo Machado
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático