A5081313334- Climate variability and models
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Atmospheric aerosols and clouds
- Hydrology and Watershed Management Studies
- Geophysics and Gravity Measurements
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Water Quality and Pollution Assessment
- Solar Radiation and Photovoltaics
- Cryospheric studies and observations
- Climate Change Policy and Economics
- Thermal Analysis in Power Transmission
- Coffee research and impacts
- Cocoa and Sweet Potato Agronomy
- Geography and Environmental Studies
- Water resources management and optimization
- Flood Risk Assessment and Management
- Climate change impacts on agriculture
- Precipitation Measurement and Analysis
- Plant Water Relations and Carbon Dynamics
National Institute for Space Research
2011-2025
Four sets of downscaling simulations based on the Eta Regional Climate Model forced by two global climate models, HadGEM2-ES and MIROC5, RCP scenarios—8.5 4.5, have been carried out. The objective this work is to assess change over South America simulations. future changes are shown in timeslices 30 years: 2011-2040; 2041-2070 2071-2100. response nested larger than MIROC5. Major warming area located central part Brazil. In austral summer, reduction precipitation increase southeastern...
To provide long-term simulations of climate change at higher resolution, Regional Climate Models (RCMs) are nested in global models (GCMs). The objective this work is to evaluate the Eta RCM driven by three models, HadGEM2-ES, BESM, and MIROC5, for present period, 1961-1990. domain covers South America, Central Caribbean. These will be used assessment projections region. Maximum temperatures generally underestimated domain, particular MIROC5 simulations, summer winter seasons. Larger spread...
In this paper, we evaluate temperature and precipitation trends over South America (SA), simulated by the regional Eta model with 20-km horizontal resolution nested to three global models: The Canadian Earth System Model Second Generation (CanESM2-ES), Met Office Hadley Centre Global Environmental - (HadGEM2-ES) for Interdisciplinary Research on Climate version 5 (MIROC5). are compared observed (OBS) using six (four) extreme (precipitation) indices recommended Expert Team Change Detection...
Abstract This study aimed to evaluate the performance of Eta Regional Climate Model in reproducing seasonal climate over South America for rainy season from November until April, with emphasis on Madeira, São Francisco, and Paraná river basins. For this purpose, a 10-year set 6-month range hindcasts was produced using at 20-km horizontal resolution driven by CFSv2 forecasts. In addition dynamical downscaling, precipitation 2-meter temperature were statistically downscaled applying Quantile...
The Madeira River, a major tributary of the Amazon often undergoes severe flood and drought conditions. This study seeks to investigate climate processes associated with opposing extreme precipitation events in River basin relate them river discharge variability based on awareness dataset. Despite uncertainty observational datasets, annual cycle exhibits rainy season from November March. A significant result is high correlation between sea surface temperature (SST) anomalies tropical North...
This study aims to assess the changes in atmospheric conditions favorable storm surges over Santos Coast Southeast Brazil. Storm can favor high sea level rises and coastal erosion, affecting people strategic structures areas. The assessment of was based on downscaling climate simulations Brazilian Earth System Model by Eta regional model at higher spatial resolution. detection scheme used able reproduce three observed patterns found recent studies: Pattern 1 is characterized a cyclone...
Transmission line towers are highly exposed to weather hazards. In southern Brazil, several damages transmission lines have been reported due severe events. Climate change projections indicate that the frequency and magnitude of extreme events may increase, making planning adaptation system exposure even more critical. this work, we propose a index (SWI) as proxy for detecting storms can potentially result in The SWI combines thresholds instability indices based on observed around tower-line...
Accurate and detailed datasets are crucial for assessing climate change impacts. Regional models provide high-resolution simulations key tools but often exhibit systematic biases. Therefore, this paper presents a dataset derived from bias-corrected Eta regional model projections driven by four global CMIP5 models. The correction applied to daily precipitation, potential evapotranspiration, actual 2-m air temperature, was conducted on 0.2° x grid over South America. covers two periods:...
Abstract Sao Tome and Principe is a small insular country in the west coast of Central Africa. The dimensions islands limited natural resources put these under highly vulnerable to climate change. To assess possible future impacts risks on their agricultural activities, high-resolution 4-km downscaled change projections using Eta regional model are used. A crop risk index (CRI) proposed cocoa ( Theobroma cacao L.), pepper Piper nigrum L. guinesse taro Colocasia esculenta (L.) Schott), maize...