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Contrasting dissolved organic carbon concentrations in the Bransfield Strait, Northern Antarctic Peninsula: insights into ENSO and SAM effects.

The marine reservoir of dissolved organic carbon (DOC) is equivalent to the atmospheric carbon reservoir and represents the largest reduced carbon stock in the ocean. However, the role of DOC in the global carbon cycle is not fully understood. In this study, we analyzed the distribution of DOC in th...
  • por Portal Padrão
  • publicado
  • 27/12/2020
  • 3:32 PM

Energy and CO2 fluxes over native fields of Southern Brazil through multi-objective calibration of inland model.

Land surface/ecosystem models (LSEMs) play a key role in understanding the Earths climate. They represent ecosystem dynamics by simulating fluxes occurring between the biosphere and atmosphere. However, for a correct flux simulation, it is critical to calibrate the model using robust and state-of-th...
  • por Portal Padrão
  • publicado
  • 25/12/2020
  • 8:39 AM

Lightning during the COVID-19 pandemic in Brazil.

This study is concerned with the effects of a decrease in the air pollution concentration on the lightning characteristics of two large Brazilian cities. The decrease in air pollution happened from March 20, till April 02, 2020, and it was caused by the social distancing effort to contain the COVID-...
  • por Portal Padrão
  • publicado
  • 06/12/2020
  • 7:18 PM

Coagulation and precipitation of cyanobacterial blooms

Eutrophication is the prime water quality issue in inland waters. Eutrophication and its key symptom, harmful cyanobacterial blooms, is expected to further increase in the future, which highlights the importance of managing the issue. The reduction of external nutrient load is crucial but might not ...
  • por Portal Padrão
  • publicado
  • 06/12/2020
  • 5:45 PM

AN EXPLICITLY SPATIAL APPROACH TO IDENTIFYING HEAT VULNERABLE URBAN AREAS AND LANDSCAPE PATTERNS.

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  • por Portal Padrão
  • publicado
  • 03/12/2020
  • 11:35 AM

Hierarchical color similarity metrics for step-wise application on sky monitoring surface cameras.

Digital cameras deployed on the surface are frequently used for monitoring atmospheric conditions. Several methods were developed to use the images for synoptic observations, cloud assessments, validation of satellite models, short term forecasting and so on. However, there are some restrictions not...
  • por Portal Padrão
  • publicado
  • 01/12/2020
  • 10:33 AM

Fatores associados a distribuição da temperatura das superfícies em área urbana: zonas climáticas locais e suas características espectrais

Global warming makes urban fabric benchmarking necessary for the development of policies that promote urban heat resilience. This research is aimed at identifying urban fabric patterns, which can promote the negative feedback of the urban climate system naturally. The method includes the use of Land...
  • por Portal Padrão
  • publicado
  • 01/12/2020
  • 10:29 AM

Spectral impact on PV in low-latitude sites: The case of southeastern Brazil.

The spectral impact on various PV materials eamorphous silicon (a-Si), CdTe, CIGS, single crystalline silicon (sc-Si) and multi crystalline (mc-Si)e in two nearby cities of Southeastern Brazil is presented. For every PV technology studied, the values of the spectral mismatch factor on instantaneous,...
  • por Portal Padrão
  • publicado
  • 01/12/2020
  • 10:26 AM

Co-designing global target-seeking scenarios: a cross-scale participatory process for capturing multiple perspectives on pathways to sustainability.

The United Nations 2030 Agenda catalysed the development of global target-seeking sustainability-oriented scenarios representing alternative pathways to reach the Sustainable Development Goals (SDGs). Implementing the SDGs requires connected actions across local, national, regional, and global level...
  • por Portal Padrão
  • publicado
  • 27/11/2020
  • 3:31 PM

Corrigendum to “Analysis of areas undergoing desertification, using EVI2 multi-temporal data based on MODIS imagery as indicator” [Ecological Indicators (2020)

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  • por Portal Padrão
  • publicado
  • 18/11/2020
  • 9:46 AM

Lightning changes in response to global warming in Rio de Janeiro, Brazil.

Physical concepts based on the Clausius-Clapeyron relation and on the thermodynamics and aerosol characteristics associated with updrafts, global climate models assuming different parametrizations and lightning-related output variables, and lightning-related data (thunderstorm days) are being used t...
  • por Portal Padrão
  • publicado
  • 06/11/2020
  • 7:18 PM

Looking to future perceptions about climate change in Brazil: what children’s teachers think, learn and teach about?

The social and human sciences have had a minor role in the studies of climate change. There remains a signifcant gap in our knowledge and understanding of the many facets of this theme. The educational sector has been neglected in the climate change scientifc debate, although it is acknowledged as a...
  • por Portal Padrão
  • publicado
  • 06/11/2020
  • 5:49 PM