Regional Mapping of Land Surface Temperature (LST), Land Surface Emissivity (LSE) and Normalized Difference Vegetation Index (NDVI) of South-South Coastal Settlements of Rivers State in Nigeria
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This study is the regional mapping of Land Surface temperature (LST), Land Surface Emissivity (LSE) and Normalized Difference Vegetation Index (NDVI) of south-south coastal settlements of Rivers State in Nigeria. The Google Earth Engine (GEE) of satellite remote sensing origin was used in the study. It was observed that land surface area of the south-south coastal settlements of the region hosting a total population of 3,344,706 persons had undergone severe modification and alteration of vegetal cover by increased human activities especially in the central area. Emissivity in the region increased from the center to the rural settlements with values ranging 0.98 to 0.99 and difference of 0.01 indicating that there was increased modification of the regional land surface. Land surface temperature decreased from the regional center to the rural settlements ranging between 22.12 ºC to 35.99 ºC with a difference of 13.87 ºC. However, LST was scattered in different settlement spots especially in the northern region such as Aleto, Finema (south); Rumuolu, Odogwa, Abara, Umuechem, Rumuola, Ambroda (north) among others. The normalized vegetation index showed -0.54358 to 0.409327 having the difference of 0.952907 indicating greater variation in vegetal cover across the region. Thus, NDVI in the region increased from the regional center to the outskirts of the area. Urbanization in the south-south region of Rivers State had extended severely to the rural settlements. Therefore, it is recommended that policy makers and regional planners should protect the area from adverse vegetal lost and heat effects by implementing regional greening practices.
-  Nwaerema, P., Ologunorisa, T. E., Nwagbara, M. O. and Ojeh, V. N. (2019). Geo-Spatial Dynamics of Land Surface Temperature of Port Harcourt Metropolis and Environs from 1986 to 2018: Implication for Heat Disaster Management. Earth Sciences 8(3), 169-177.
-  Nwaerema, P. and Nwagbara, M. O. (2019). Assessment of Normalized Difference Vegetation Index (NDVI) of Port Harcourt Metropolis and Environs, from 1986 to 2018: Implication to Urban Greening and Management. Annals of Geographic Studies 2(2), 25-34.
-  Nwaerema, P., Ojeh, N. V., Amadou, C and Atuma, I. N. (2019). Spatial Assessment of Land Surface Temperature and Emissivity in the Tropical Littoral City of Port Harcourt, Nigeria. International Journal of Environment and Climate Change 9(2), 88-103.
-  Nwaerema, P. (2019). Land Surface Emissivity Mapping of Port Harcourt City and Environs, from 1986 to 2018: An Approach to Urban Heat and Environmental Management. Earth Science and Environment Research Journal, 1(1), 1-9.
-  Nwaerema, P. and Weli, V. E. (2018) Urban Warming in Port Harcourt Metropolis and Environs. Journal of Geography, Environment and Earth Sciences 14(4), 1-19.
-  Ologunorisa, E. T. (2009). Strategies for Mitigation of Flood Risk in the Niger Delta, Nigeria. Journal of Applied Science and Environmental Management 13(2) 17- 22.
-  Edokpa, D. O. and Nwagbara, M. O (2017). Atmospheric stability pattern over Port Harcourt, Nigeria. Journal of Atmospheric Pollution 5(1), 9-17.
-  Jasper, E. and Anil, G. (2014). Ecosystem Services of the Niger Delta Forests, Nigeria. Journal of Agriculture and Social Research 14(1), 37-56.
-  David, P., Zina, M., Nektrarios, C. and Michael, A. (2017). Online Global Land Surface Temperature Estimation from Landsat. Remote Sens 9(12), 1208.
-  Hulley, G.C. and Hook, S. J. (2011).Generating consistent land surface temperature and emissivity products between ASTER and MODIS data for Earth science research. Journal of Transactions on Geoscience and Remote Sensing 49, 1304-1315.
-  Li, Z.L., Tang, H., Wu, H., Ren, H., Yan, G.J., Wan, Z., Trigo, I.F., Sobrino, J. (2013). Satellite-derived land surface temperature: Current status and perspectives. Remote Sens. Environ 131, 14-37.
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