Detection of Impacts of Gas Flaring in the Environment: Application of Landsat Earth Observation Data.

Authors

  • BARNABAS MORAKINYO BAZE UNIVERSITY ABUJA,

Keywords:

Detection, Impacts, Earth Observation (EO) data, Landsat 5, Landsat 7, Normalized Differential Vegetation Index (NDVI)

Abstract

The study focuses on detection of the impacts of gas flaring at 5 gas flaring sites in the Niger Delta using satellites data. 6 Landsat 5 Thematic Mapper (TM) data, and 13 Landsat 7 Enhanced Thematic Mapper Plus (ETM ) data spanned from 17/01/1986 to 08/03/2013 with  5  cloud contamination were used. The atmospherically corrected reflectance was used for the calculation of Normalized Differential Vegetation Index (NDVI) and classification of land cover (LC) types. The Planck equation was inverted using thermal band calibration constants to derive Land Surface Temperature (LST). The transect plot of the reflectance bands (1-4) and NDVI, and 4 cardinal plot analyses for NDVI and LST were adopted to explore the results. Mean and standard deviation of NDVI obtained for the 5 sites are as follows:  Eleme I (1.917  10-5, 2.069  10-4), Eleme II (1.501  10-5, 1.340  10-4), Bonny LNG (2.129  10-5, 8.290  10-5), Umurolu (5.806  10-5, 7.499  10-5) and Onne (2.285  10⁻6, 7.952  10-5). The results show that LSTs and NDVIs exhibited opposite spatial distribution patterns at the 5 flaring sites investigated. This suggests that vegetation cover, health, growth, etc., within the area has been negatively affected. Regarding these results, we draw a conclusion that Landsat 5 TM and Landsat 7 ETM  have the capacity for detection of the impacts of gas flaring in the Niger Delta.

Published

2023-06-30

How to Cite

MORAKINYO, B. (2023). Detection of Impacts of Gas Flaring in the Environment: Application of Landsat Earth Observation Data. Baze University Journal of Entrepreneurship and Interdisciplinary Studies, 2(1). Retrieved from http://koha.bazeuniversity.edu.ng/index.php/bujeis/article/view/61