Banca de QUALIFICAÇÃO: EWERTON BRUNO BRITO DE ARAUJO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : EWERTON BRUNO BRITO DE ARAUJO
DATA : 30/05/2018
HORA: 08:30
LOCAL: Sala 4 ECT
TÍTULO:

DESERTIFICATION PROCESS IN THE POTIGUAR BASIN: CLIMATE VARIABILITY AND SOIL USE CHANGES

PALAVRAS-CHAVES:

LULC. cluster. trends. SPI. remote sensing

PÁGINAS: 50
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Meteorologia
ESPECIALIDADE: Climatologia
RESUMO:

The population increase has been impacting the natural environment, and this is due to the changes in the coverage and use of the land and, consequently, the biophysical parameters of the surfaces that characterize the energy and thermal equilibrium of the soil. The Potiguar Basin, located in the Borborema Province in the states of Rio Grande do Norte and Ceará, is characterized by being the largest oil producer, on land, and third in the sea, in Brazil, as well as for having great saline and subsistence activities. Land use contributes to possible climate change, as human activities influence climate change by altering the distribution of ecosystems. In this way, the research aims to associate changes in land use and occupation with climatic variability and desertification in the Potiguar Basin. For this, the data of precipitation, maximum and minimum temperatures, relative humidity, solar radiation, wind speed and reference evapotranspiration, made available by Xavier et al. (2017), which is based on meteorological stations, with a total of 9,259 train stations and 735 meteorological stations. In addition, satellite imagery will be used for remote sensing treatment. In the first set of data will be applied the analysis of grouping, with the intention to subdivide the Potiguar Basin into homogeneous regions. Subsequently, a trend analysis will be performed on the meteorological variables, in each homogeneous region. Finally, it is intended to identify conditions associated with droughts and excess rainfall, through the Standardized Precipitation Index. Once the statistical methods are done, a selection will be made over the years that present significant changes in trend analysis. In these years, using remote sensing, it will be possible to evaluate the change in land cover and desertification in the Potiguar Basin from variables Normalized Difference Vegetation Index and albedo, based on the methodology applied by de Lamchin et al. (2016), who used the levels of desertification classification and the decision tree. As a result, it is expected that the Potiguar Basin will be subdivided into homogeneous regions from above-mentioned meteorological variables, with dry and rainy periods, space-time evolution of the level of desertification and analysis of land use and occupation.

MEMBROS DA BANCA:
Presidente - 1914304 - KELLEN CARLA LIMA
Interno - 792.031.834-34 - MARIA HELENA CONSTANTINO SPYRIDES - UFRN
Interno - 1164414 - WEBER ANDRADE GONCALVES
Externo ao Programa - 350698 - VENERANDO EUSTAQUIO AMARO