da Silva, Renato Oliveira

Mendes, Telmo José

Oliveira, Ana Karla da Silva

Oliveira, Kamilla Andrade

Silva, Carlos Augusto Cardoso

Sousa, Washington da Silva

English

Portal de Revistas do ICMBio (Instituto Chico Mendes de Conservação da Biodiversidade)

Detection and analysis of heat 
Biodiversidade Brasileira, 10(1): 68, 2020 Instituto Chico Mendes de Conservação da Biodiversidade 
 
 
68 
 
Detection and analysis of heat focus associated with soil use in the 
Munim River watershed 
 
 
Renato Oliveira da Silva1, Kamilla Andrade Oliveira1, Telmo José Mendes1,  
Carlos Augusto Cardoso Silva1, Ana Karla da Silva Oliveira1, Washington da Silva Sousa1 
 
 
1 Universidade Federal do Maranhão, Maranhão, Brasil 
*e-mail: oliveira.rennato@hotmail.com; kamilla.andrade@ufma.br; telmo.mendes@ufma.br; 
carlosaugusto8435@gmail.com; karlinha_oliveira95@hotmail.com; wssousa@gmail.com 
 
 
 
 
ABSTRACT – Forest fires are mostly caused by anthropogenic actions and have a 
devastating potential in the environment. The Munim River Watershed has experienced 
strong economic growth linked to the exploitation of natural resources. This research aimed 
to identify hot flashes in the Munim River Watershed and associate them with land use. 
For land use analysis, scenes 220/62 and 220/63 were used. Through the use of ArcMap 
10.5 software, different digital image processing practices were carried out, which can be 
described in three main steps: Preprocessing, Highlighting and classification, where the 
defined classes were: dense vegetation, thin vegetation, exposed soil, clouds, and, water 
bodies. The data obtained for the analysis of heat sources in the Munim River Watershed 
region were obtained on the electronic platform of the National Institute for Space Research 
(INPE) on the period from 2008 to 2018 based on data of satellites by NOAA, GOES, 
AQUA, NPP METOP, MSG, and TERRA series. Among the years analyzed, 2011 was the 
year with the lowest number of hot spots, a total of 2,114, whereas 2015 stood out with the 
highest number of hot spots, totaling 14,048. By combining the hot spots with land use in 
the year 2015, it was evidenced that most of them were identified in areas classified as thin 
vegetation with 41.95% and in areas of exposed soil with 39.76% and in smaller amounts 
in areas of dense vegetation with 16.99% of allocated points. The cities of Chapadinha, 
Afonso Cunha, Coelho Neto, Buriti, São Benedito do Rio Preto and Urbano Santos were 
the ones that indicated the largest number of hot spots, being classified as Very High, High 
and Medium intensity. In the years 2009 and 2011 the lowest focus intensities were 
identified in the Munim River Watershed, being quantified at 2,690 and 2,114, 
respectively. 
 
Keywords: use of the soil, natural resources, heat spots 
 


Detection and analysis of heat focus associated with soil use in the Munim River watershed

https://www.icmbio.gov.br/revistaeletronica/index.php/BioBR/article/download/1551/1066

Detection and analysis of heat focus associated with soil use in the Munim River watershed

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