
Ênio Giuliano Girão, Eunice Maia de Andrade, Morsyleide de Freitas Rosa, Lúcia de Fátima Araújo, Ana Célia Maia Meireles,
Multivariate statistical techniques, Factor Analysis/Principal Component Analysis - FA/PCA, was applied to the data set on water quality of the Jaibaras River, Ceara, Brazil to identify the most significant pollution sources/factors. The data set was generated during three years (Apr/2002 to Jun/2005) monitoring at two sites (P1 - Ayres de Souza water gate and P2 - the outlet of the Jaibaras River). It was analyzed the following variables: pH, EC, Na + , Ca +2 , Mg +2 , K + , Cl - , HCO 3 - , PO 4 -2 , NH + 4 , NO 3 - , SO 4 -2 and Sodium ...
Tópico(s): Groundwater and Isotope Geochemistry
2007 - UNIVERSIDADE FEDERAL DO CEARÁ | Ciência Agronômica/Revista ciência agronômica

Daniel Dantas Moreira Gomes, Lúcia Maria Silveira Mendes, Cleyber Nascimento de Medeiros, César Ulisses Vieira Veríssimo,
This study aimed to analyze a series of multitemporal LANDSAT 5, where they have gone through techniques of digital image processing, allowing to generate NDVI index (normalized difference vegetation), so it was possible to identify and quantify the levels of degradation of vegetation in the area of River Basin Jaiba / EC within 24 years, and specifically, the research conducted in the years 1985, 1992, 1996, 2007 and 2009. Through the use of classification techniques of digital image processing and ...
Tópico(s): Environmental and biological studies
2011 - UNIVERSIDADE FEDERAL DE SANTA MARIA | Geografia Ensino & Pesquisa

Daniel Dantas Moreira Gomes, Cleyber Nascimento de Medeiros, Emanuel Lindemberg Silva Albuquerque, Cynthia Romariz Duarte, César Ulisses Vieira Veríssimo,
A bacia hidrográfica do rio Jaibaras, no Estado do Ceará / Brasil, apresenta uma diversidade paisagística expressiva, tendo em vista que se localiza em uma região de ...
Tópico(s): Geography and Environmental Studies
2013 - UNIVERSIDADE FEDERAL DE UBERLÂNDIA | Revista Brasileira de Cartografia

Ana Cristina Azevedo Lima, Isorlanda Caracristi,
... e médio curso da sub-bacia hidrográfica do Rio Jaibaras, que se localiza na região Noroeste cearense, próximo ...
Tópico(s): Geography and Environmental Studies
2019 - | REVISTA EQUADOR
Ana Jéssica de Sousa dos Santos, Francisco Bruno Monte Gomes, Davis Pereira de Paula, Simone Ferreira Diniz,
... atingidas pela seca. Na sub-bacia hidrográfica do rio Jaibaras foram construídos dois açudes para manutenção da segurança ...
Tópico(s): Geography and Environmental Studies
2019 - | Revista da Casa da Geografia de Sobral (RCGS)

Rodrigo Irineu Cerri, Lucas V. Warren, Filipe Giovanini Varejão, Alex J. Choupina A. Silva, Cristiano Lana, Mário Luís Assine,
... the post-rift thermal subsidence phase. The Ediacaran Jaibaras Rift Basin is one of the best-exposed ... zircon U–Pb ages of rocks from the Jaibaras (Aprazível Formation) and Parnaíba (Ipu Formation) basins, in ... Cambrian age for the upper part of the Jaibaras Basin. The bulk U–Pb data indicate that ... Orogeny to the south and SE (e.g. Rio Preto and Riacho do Pontal metamorphic belts). Finally, ...
Tópico(s): Geochemistry and Geologic Mapping
2021 - Cambridge University Press | Geological Magazine