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Diurnal Cycle of Convection over Amazon: Modulation by land-surface heterogeneity and cold pools

 
Poster PDF

Authors

Jennifer M. Comstock — Pacific Northwest National Laboratory
David T. Troyan — Brookhaven National Laboratory
Larry Berg — Pacific Northwest National Laboratory
Courtney Schumacher — Texas A&M University
Scott Giangrande — Brookhaven National Laboratory
Samson M Hagos — Pacific Northwest National Laboratory
Zhe Feng — Pacific Northwest National Laboratory
Tami Fairless — Pacific Northwest National Laboratory
Casey Dale Burleyson — Pacific Northwest National Laboratory

Category

Mesoscale Convective Organization and Cold Pools

Description

Composite diurnal cycle of convective cloud frequencies and surface precipitation observed by WACR at the AMF site in Manacapuru, Brazil for (a) wet season, (b) dry season.
Understanding and representation of diurnal cycle in climate models remains to be one of the most significant challenges in climate science. In this study, we examine the comparative roles of land-surface heterogeneity and cold pool dynamics in the diurnal cycle of convection over Amazon using data collected during the recent GoAmazon field campaign and high-resolution regional model simulations. Results from analysis of observed and modeled diurnal cycle of wet and dry season convection will be presented.