IMPACTS OF PETROCHEMICAL COMPLEX OF RIO DE JANEIRO IN EASTERN METROPOLITAN REGION OF RIO DE JANEIRO USING REMOTE SENSING DATA
ISBN 978-85-88783-11-9
Authors
1Barros, L.; 2Peres, L.
1UNIVERSIDADE FEDERAL DO RIO DE JANEIRO-UFRJ Email: leandrorlbarros@gmail.com
2UNIVERSIDADE FEDERAL DO RIO DE JANEIRO-UFRJ Email: leonardo.peres@igeo.ufrj.br
Abstract
Rio de Janeiro Petrochemical Complex (COMPERJ) is scheduled to begin operation in 2014. The facility is located on a 45 square kilometers land in Itaboraí, Rio de Janeiro. It is expected that COMPERJ construction increase the pressure on local infrastructure conditions and the environmental system. Accordingly, this work aims to analyze the impact of COMPERJ on land-surface temperature (LST) and land use based on remotely sensed data from Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) sensors on board Landsat-5 and 7 satellites, respectively. The remote sensing data were used in the retrieval of LST, the normalized difference vegetation index (NDVI) and the based built-up index (IBI) for a period of 8 years allowing the temporal evolution observation of these parameters before and after COMPERJ construction. The temporal evolution of the TSC, NDVI and IBI was verified by the Students’s t statistical test conducted at the 5% level. Post-construction results show a ring of LST concentric values coming from the colder outer part toward the warmer core. From the outside to the core, the temperature gradient is close to 8.0 C with spatial characteristics similar to an urban heat island. LST presents a huge variability associated with weather and climate conditions and therefore it was not possible confirm based on the Student’s test that LST values were increased after COMPERJ construction. On the other hand obtained results confirm, within the significance level assumed, that NDVI (IBI) has decreased (increased) just inside the construction area of COMPERJ. Key words: COMPERJ; Landsat; Land-surface temperature; NDVI; IBI.
Keywords
COMPERJ; Land-surface temperature; IBI