Biophysical parameters from remote sensing in semiarid region of Rio Grande do Norte state, Brazil/ Parametros biofisicos obtidos por sensoriamento remoto em regiao semiarida do estado do Rio Grande do Norte, Brasil

Despite being the single Brazilian biome whose limits are restricted to the national territory, little attention has been given to the conservation of the diverse landscape of 'Caatinga'. Given the scarcity of field data to monitor the biophysical parameters of vegetation of 'Caatinga...

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Bibliographic Details
Published in:Revista brasileira de engenharia agrícola e ambiental 2014-01, Vol.18 (1), p.73
Main Authors: Bezerra, Joel M, Moura, Geber B. de A, da Silva, Bernardo B, Lopes, Pabricio M.O, Silva, Enio F. de F
Format: Article
Language:Spanish
Subjects:
Algorithms
Digital mapping
Earth resources technology satellites
Protection and preservation
Remote sensing
Online Access:Get full text
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Summary:Despite being the single Brazilian biome whose limits are restricted to the national territory, little attention has been given to the conservation of the diverse landscape of 'Caatinga'. Given the scarcity of field data to monitor the biophysical parameters of vegetation of 'Caatinga' in semiarid regions of northeastern Brazil, this study aimed to evaluate the seasonality of spatial dynamics, by means of techniques and products of Remote Sensing. The study area included the conservation unit of the National Park of the Furna Feia and its adjacencies, being situated in the municipalities of Mossoro and Barauna (RN, Brazil). Six orbital images of TM LANDSAT 5, orbit 216 and paragraph 63 taken during the period 2007 to 2010 were used. With the aid of the tool Geographic Information System algorithms were implemented with the generation of thematic maps expressing the variability of the parameters of surface albedo, Normalized Difference Vegetation Index (NDVI) and surface temperature. The results were consistent with literature data for different soil uses and climatic variations. These results demonstrate the potential of the geotechnologies for understanding the dynamics of the spatial and temporal patterns of biophysical processes of interaction soil-plant-atmosphere of the semi-arid 'Caatinga'.
ISSN:1415-4366