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Record W3035880473 · doi:10.5327/z2176-947820200624

ANÁLISE DE PROJEÇÕES DAS MUDANÇAS CLIMÁTICAS SOBRE PRECIPITAÇÃO E TEMPERATURA NAS REGIÕES HIDROGRÁFICAS BRASILEIRAS PARA O SÉCULO XXI

2020· article· pt· W3035880473 on OpenAlexaboutno aff
Greicy Kelly da Silva, Cleiton Da Silva Silveira, Marx Vinícius Maciel da Silva, Antônio Duarte Marcos, Francisco de Assis de Souza, Sullyandro Oliveira Guimarães

Bibliographic record

VenueRevista Brasileira de Ciências Ambientais · 2020
Typearticle
Languagept
FieldEnvironmental Science
TopicAtmospheric and Environmental Gas Dynamics
Canadian institutionsnot available
FundersCenter of Mathematical Sciences and Applications, Harvard UniversityIrish Centre for High-End ComputingNational Oceanic and Atmospheric AdministrationCommonwealth Scientific and Industrial Research Organisation
KeywordsEnvironmental scienceDownscalingClimatologyClimate modelGeographyClimate changeAtmospheric sciencesPhysicsMeteorologyGeologyPrecipitation

Abstract

fetched live from OpenAlex

A fim de obter informações acerca dos possíveis impactos no regime dos campos de precipitação e no regime de temperatura nas regiões hidrográficas brasileiras em decorrência do aumento das emissões de gases de efeito estufa, este trabalho teve como objetivo analisar as projeções resultantes de nove modelos participantes do Coordinated Regional Climate Downscaling Experiment (CORDEX), considerando os cenários representative concentration pathways (RCP) 4.5 e RCP8.5 para o século XXI. Os modelos utilizados foram: Canadian Centre for Climate Modelling and Analysis – Canadian Earth System Model (The second generation) (CCCma-CanESM2), Commonwealth Scientific and Industrial Research Organization (version Mk3-6-0) (CSIRO-Mk3-6-0), Irish Centre for High End Computing – European Community – EARTH (ICHEC-EC-EARTH), Institut Pierre Simon Laplace – 5 Component Models version A – Medium Resolution (IPSL-CMSA-MR), Model for Interdisciplinary Research on Climate version 5 (MIROC5), Hadley Center Global Environment Model version 2 – Earth System (HadGEM2-ES), Max Planck Institute – Meteorology – Earth System Model (MPIM-ESM), Norwegian Climate Centre – Norwegian Earth System Model version 1 – Medium resolution (NCC-NorESM1-M) e National Oceanic and AtmosphericAdministration – Geophysical Fluid Dynamics Laboratory – Earth System Model version 2M (NOAA-GFDL-ESM2M). Foram analisadas as anomalias e a tendência dos campos de precipitação e temperatura médias anuais no período de 2006 a 2095. Todos os modelos projetaram aumento da temperatura em todas asregiões. Para o cenário RCP8.5, a anomalia da temperatura indicou aumento de até 1,58ºC na região hidrográfica amazônica. A precipitação também pode aumentar em algumas regiões hidrográficas. A mediana das anomalias sugeriu aumentos entre 10 e 30% no Atlântico Leste, Atlântico Nordeste Ocidental,Atlântico Nordeste Oriental, Paraguai, Parnaíba, Tocantins-Araguaia e São Francisco. Anomalias negativas foram identificadas no sudeste e principalmente no sul do Brasil, indicando reduções na precipitação. O teste de Mann-Kendall-Sen sugeriu uma possível intensificação no regime de precipitações anuais em grande parte das regiões hidrográficas, exceto as do Atlântico Sul, Paraná e Uruguai. Em ambos os cenários, o teste apontou ausência de tendência na região do Atlântico Sul pela maioria dos modelos. Todos os modelos apresentaramtendência positiva significativa para a temperatura nos dois cenários e em todas as regiões. A maior e a menor tendência de aquecimento foram observadas no norte e no sul do país, respectivamente.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.057
Threshold uncertainty score0.113

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.028
GPT teacher head0.278
Teacher spread0.250 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations7
Published2020
Admission routes1
Has abstractyes

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Same venueRevista Brasileira de Ciências AmbientaisSame topicAtmospheric and Environmental Gas DynamicsFrench-language works237,207