@InProceedings{TarasovaFiguPisn:2007:PeNeRa,
author = "Tarasova, Tatiana A. and Figueroa, Silvio Nilo and Pisnichenko,
Igor A.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)} and
{Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)} and
{Instituto Nacional de Pesquisas Espaciais (INPE/CPTEC)}",
title = "Performance of new radiation parameterization schemes in the
CPTEC-COLA global model forsummer months with anomaly
precipitation over central and southeastern Brazil",
booktitle = "Abstracts...",
year = "2007",
organization = "3rd WGNE Workshop on Systematic Errors in Climate and NWP Models,
San Francisco, Feb.12-16, 2007.",
address = "San Francisco",
note = "{PCMDI(Program for Climate Model Diagnosis and Intercomparison
)}",
keywords = "schemes, meteorology, central, preciptation, southeastern,
Brazil.",
abstract = "The CPTEC-COLA GCM with different solar and thermal radiation
schemes is used for a set of ensemble forecasts for normal and
anomalously wet and dry summer months from 1997 to 2006 over
central and southeastern Brazil. This region is characterized by
enhanced convective cloudiness and rainfall in summer related to
the South Atlantic convergence zone formation. An offline
comparison of the original and two modern solar radiation schemes
shows that the modern schemes calculate major atmospheric
absorption and hence smaller solar radiative fluxes incident at
the surface. The smaller solar radiation incident on the ground
causes a decrease in evaporation and hence in convective
precipitation rate in the model. The difference between the
surface or top-of-the atmosphere thermal radiative fluxes
calculated by original and modern thermal radiation schemes is
quite smaller. Nevertheless,the change of the thermal radiation
schemes in the model also affects the model results. The surface
and top-of-the-atmosphere radiative fluxes simulated by the model
with different solar and thermal radiation schemes are compared
with the satellite-derived fluxes. The precipitation rates on the
ground are compared with Global Precipitation Climatology Project
data. In order to quantify the skill of ensemble forecasts various
skill scores are calculated for above mentioned region.",
conference-location = "San Francisco",
conference-year = "12-16",
language = "en",
organisation = "PCMDI",
targetfile = "POSTER-WGNE3.pdf",
urlaccessdate = "19 abr. 2024"
}