Thunderstorm forecast to support power electric operation management.
Thunderstorms cause a significant number of faults in energy distribution systems. The possibility to forecast the thunderstorm frequency in the summer period with a reasonable anticipation (a few months) would be of great importance to support preventive actions for protection and recomposition of ...
por Portal Padrão
publicado
23/08/2011
2:52 PM
The new brazilian lightning detection network: first results.
A new lightning detection network using WeatherBug Total Lightning Sensors (WTLS) is being deployed in Brazil. The network can acquire detailed signals emitted from both IC and CG flashes and continuously sends information to a central server. A WTLS is composed of an antenna, a global positioning s...
por Portal Padrão
publicado
23/08/2011
2:51 PM
Lightning incidence in the southeast Brazil: comparison of thunderstorm days from different data bases.
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por Portal Padrão
publicado
23/08/2011
2:49 PM
Lightning monitoring technologies for power applications.
Lightning monitoring technologies to support electric power applications have been developed and used for at least 30 years in many countries. The main technology available consists of Lightning Location Systems (LLS). They have been used in conjunction with specific computational tools by power uti...
por Portal Padrão
publicado
23/08/2011
2:48 PM
Influência de queimadas na redução da incidência de radiação solar observadas pelo sistema AERONET e LBA no território brasileiro.
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por Portal Padrão
publicado
23/08/2011
2:47 PM
Estimação do fluxo do gás carbônico entre o solo e a atmosfera.
Recentemente, há um aumento de CO2 na atmosfera, decorrente do uso de combustíveis fósseis (carvão, petróleo, gás natural) em termelétricas, indústrias, automóveis e também da devastação e queima de florestas contribuindo para o aquecimento global. O objetivo do presente trabalho é esti...
por Portal Padrão
publicado
23/08/2011
2:45 PM
Análise da suscetibilidade a erosão da zona de amortecimento de áreas naturais legalmente protegidas.
The analysis of development activities in the surrounding protected natural areas contributes to identify the elements that question the functionality, the contradictions and the limits of sustainable development of these areas. In this context, this study examines the susceptibility to environmenta...
por Portal Padrão
publicado
23/08/2011
2:43 PM
Lightning density maps obtained by keraunic levels, lightning detection network data and satellite observations.
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por Portal Padrão
publicado
23/08/2011
2:42 PM
Cloud-to-ground lightning characteristics in southern and southeastern Brazil: spatial analysis.
After the integration of three regional lightning detection networks (SIDDEM and RINDAT) in June 2005, the Brazilian lightning detection network (BrasilDAT) covered almost 50% of Brazil except to the Amazon basin and the Northeastern Brazil. For the last 6 years (2005-2010), the BrasilDAT network ha...
por Portal Padrão
publicado
23/08/2011
2:41 PM
A trial Brazilian Total Lightning Network (BTLN) in southeastern Brazil: first results.
A 12 sensors trial network, called Brazilian Total Lightning Detection Network (BTLN), combining advanced lightning detection technologies with modern electronics was installed in the Southeastern Brazil in 2010/2011. The network is composed of 12 WeatherBug Lightning Sensor (WLS), each of them with...
por Portal Padrão
publicado
23/08/2011
2:39 PM
The fourth generation of the Brazilian detection efficiency model for BrasilDAT network (RDEM4).
Variations of the network performance indicate the limitations of the lightning data provided by lightning location networks. One of the most important is the detection efficiency (DE), given as the ratio of the number of detected events by the events that actually occur. And of course variations of...
por Portal Padrão
publicado
23/08/2011
2:38 PM
Aprimoramento de algoritmos para a determinação de cobertura efetiva de nuvens a partir de imagens de satélite geoestacionário.
Este trabalho tem como objetivo o aperfeiçoamento dos algoritmos para a determinação da cobertura efetiva de nuvens em imagens do satélite geoestacionário GOES. A cobertura efetiva de nuvens é utilizada para alimentar o modelo de transferência radiativa BRASIL-SR utilizado para o mapeamento d...
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