Contribution of coherent structures to the buoyancy heat flux under different conditions of stationarity over Amazonian forest sites

Autor(es)

Zeri, Marcelo ^[1] ; Sa, Leonardo Deane A. ^[2] ; Nobre, Carlos A. ^[3]

Afiliação do(s) autor(es)

^[1] Brazilian Ctr Monitoring & Early Warnings Nat Dis, BR-12247016 Sao Jose Dos Campos, SP - Brazil

^[2] Inst Nacl Pesquisas Espaciais, Ctr Reg Amazonia, Belem, Para - Brazil

^[3] Minist Ciencia Tecnol & Inovacao, Secretaria Polit & Programas Pesquisa & Desenvolv, Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Atmospheric Science Letters; v. 16, n. 3, p. 228-233, JUL-SEP 2015.
• Citações Web of Science: 1

Resumo

The contribution of coherent structures (CSs) to daytime buoyancy heat flux was calculated for three forest sites in the Amazon region and a wetland site. Ejections and sweeps had similar contributions to fluxes at all sites, and when decomposing this contribution in scales, the resulting spectra were narrower for the forests. When accounting for times scales from 10 to 200s, CSs contributed to approximately 80% of fluxes for CaxiuanA forest site, with lower values for other locations. Among the forest, the contribution for the Jaru site was the lowest (approximate to 66%) due to peak of contribution being close to 200s. (AU)

• Processo FAPESP: 11/04101-0 - Fluxos verticais de energia, escalares e momentum sobre superfícies vegetadas calculados pela técnica surface renewal
• Beneficiário: Luis Marcelo de Mattos Zeri
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado