Results 31 to 40 of about 1,287 (187)

SIRGAS 2017 reference frame realization SIR17P01

, 2020
The SIRGAS reference frame realization (SIR17P01) covers the period from April 17, 2011 (GPS week 1632) to January 28, 2017 (GPS week 1933). It includes only weekly solutions referring to the IGS08/IGb08 reference frame.
Drewes, Hermann, Sánchez, Laura
core   +1 more source

Implicações da adoção do referencial geodésico SIRGAS 2000 na cartografia em escala grande [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Desde 2005 o Brasil vem atravessando um momento singular na Cartografia.
Fernandes, Vivian de Oliveira
core  

Geodesia as a Support Tool for the Pantanal Neotectonics Understanding: the Corumbá Fluviometric Station Example, Mato Grosso do Sul, Brazil [PDF]

Anuário do Instituto de Geociências, 2018
Global Navigation Satellite Systems (GNSS) were initially designed to extend the coverage and accuracy of navigation systems, but given the possible applications, it is possible to analyze the different terrestrial phenomena from a specific methodology.
Antônio Conceição Paranhos Filho, Gustavo Marques e Amorim, Rômulo Machado, José Marcato Junior, Fabricio dos Santos Prol, Jose Renato Silva de Oliveira, Camila Leonardo Mioto   +6 more
doaj   +1 more source

EFEITOS NA CARTOGRAFIA DEVIDO A EVOLUÇÃO DO SISTEMA GEODÉSICO BRASILEIRO E ADOÇÃO DE UM REFERENCIAL GEOCÊNTRICO [PDF]

Revista Brasileira de Cartografia, 2002
The existent cartographic products in the country, including the systematic mapping - whose production is responsibility of IBGE (Fundação Instituto Brasileiro de Geografia e Estatística) and of DSG (Diretoria do Serviço Geográfico) - are based on ...
Regiane Dalazoana, Sílvio Rogério Correia de Freitas   +1 more
doaj  

Spatial Distribution and Bioprospecting of Phytopathogenic Fungi on Amaranthus for Biological Control in Brazil

Weed Research, Volume 66, Issue 5, September/October 2026.
ABSTRACT The genus Amaranthus comprises approximately 70 species with a global distribution, particularly in tropical and subtropical regions. In Brazil, Amaranthus hybridus is a highly harmful weed characterised by aggressive ecophysiology, producing more than 250 000 viable seeds per plant and forming extensive soil seed banks.
Werik P. Dias, Adryelle A. Sousa, Lucas H. V. V. Carvalho, Mike S. J. Ferreira, André L. Firmino, Bruno S. Vieira   +5 more
wiley   +1 more source

Desarrollo de un modelo de corrección de la influencia del vapor de agua troposférico en el procesamiento DInSAR con el aporte de GNSS y ERA5.

Revista Cartográfica
El presente trabajo analiza la influencia del vapor de agua troposférico en una de las más novedosas técnicas de monitoreo de deformaciones corticales: la Interferometría Diferencial de Imágenes de Radar de Apertura Sintética (DInSAR).
Patricia Alejandra Rosell, María Virginia Mackern Oberti, Pablo Andrés Euillades   +2 more
doaj   +1 more source

Estimativas do Nível do Mar na América do Sul a partir de Registros Maregráficos e Coordenadas SIRGAS-CON

Revista Brasileira de Cartografia, 2020
Neste estudo, avaliou-se a taxa relativa do nível do mar em 20 estações maregráficas, com dados mensais do Permanet Service for Mean Sea Level (PSMSL), na América do Sul.
Lucas Gonzales Lima Pereira Calado, Silvio Jacks dos Anjos Garnés, Karoline Paes Jamur   +2 more
doaj   +1 more source

A quantitative analysis to detect mass mortality events (wrecks) in Procellariiformes

Journal of Applied Ecology, Volume 63, Issue 7, July 2026.
Our study provides the first systematic assessment of seabird mass mortality events in the South Atlantic and introduces a transferable statistical framework for detecting MMEs in other taxa and regions lacking baseline mortality information. By identifying recurrent temporal anomalies, high‐risk areas and vulnerable species, we could establish ...
Laura Baes, Ana Carolina Ewbank, Henrique Chupil, Carolina Reigada   +3 more
wiley   +1 more source

Social roles and resource competition mediate intraspecific interactions of Chilean Flamingo (Phoenicopterus chilensis) in southern Brazil

Journal of Zoology, Volume 329, Issue 3, Page 257-270, July 2026.
In social birds such as flamingos, intraspecific interactions are frequent and play a key role in flock cohesion, communication, and the establishment of social networks. Understanding the patterns and drivers of these interactions can provide valuable ecological insights and inform management, husbandry, and conservation practices.
H. C. Delfino, P. Rose, C. J. Carlos
wiley   +1 more source

GNSS network integration: a methodological proposal of the densification of the SIRGAS network in South America [PDF]

, 2011
A característica continental do Brasil implica na necessidade de constantes desafios científicos em pesquisas espaciais e tecnológicas, que visam contribuir ao engajamento de centros de pesquisas, fornecendo instrumentos às atividades espaciais no país e
Chaves, João Carlos [UNESP], Chaves, João Carlos, Monico, João Francisco Galera [UNESP], Chuerubim, Maria Lígia, Maria Lígia Chuerubim, Chuerubim,Maria Lígia, Chuerubim, Maria Lígia [UNESP], João Carlos Chaves, Monico, João Francisco Galera, Chaves,João Carlos, João Francisco Galera Monico, Monico,João Francisco Galera   +11 more
core   +1 more source