Environmental applications of hyperspectral anomaly and target detection algorithms

Soydan, Hilal
The objective of this thesis study is to understand the capacity of hyperspectral anomaly detection and target detection algorithms for contamination mapping, with a focus on developing a new methodology for environmental problems related to coal mining operations. Considering the data availability, specific chemical structure and reflectance properties as well as being one of the common contaminants in mining operations, hydrocarbon induced problems are studied for water and soil medium separately. Having developed the algorithms and implemented new methodologies, the research is focused on understanding the potential of anomaly detection for identifying topographical changes in temporal manner and mapping secondary iron minerals related to acid mine drainage, which is a commonly encountered problem in coal mine sites. On the top of the developed expertise of the definitions and mathematical implications of anomaly and target detection algorithms, soils’ spectral features with regard to their chemical and physical relation is elaborated. The research contributes to literature by presenting the success of hyperspectral anomaly and target analysis algorithms to differentiate oil slicks in water medium. In addition to the capacity of anomaly and target analysis to determine hydrocarbon induced alterations, unmixing techniques are also proved to resolve the characteristic features in relation with surface manifestations of hydrocarbon seeps by means of multispectral data sets.This novel approach is adapted to determine the iron oxide mineral contents associated with acid mine drainage problems in mining areas with one of the latest imaging missions of European Space Agency (ESA), Sentinel-2. The theoretical background and experiments on synthetic data to map iron related features so far are combined to analyze the downloaded Sentinel-2 image with the help of the developed methodologies.


Monitoring and statistical modelling of dust concentration of some Turkish lignites under laboratory conditions
Karakaş, Ahmet; Güyagüler, Tevfik; Department of Mining Engineering (2010)
Although technological developments enable maximum safety, high dust formation is still a crucial problem in coal mining sector. This study is aimed to investigate the relationship between amount of coal dust produced during cutting operation and some important coal properties together with cutting parameters for different particle size ranges in laboratory conditions. For this purpose, six Turkish lignite samples were used in the experiments. Two experiment sets were designed to generate coal dust by using...
Thermal characterization and gasification kinetics of thrace-saray region coal
Yıldırım, Betül; Kök, Mustafa Verşan; Department of Petroleum and Natural Gas Engineering (2015)
In this thesis being up as-received and washed and dried, two different coal samples from Saray-Edirkoy field were experimented in order to determine effects of different variables as coal type, heating rate, gas flow rate, isothermal duration, gasifying medium, and final gasification temperature, on isothermal gasification profiles of the coal samples. In the scope of this study, heating rate was changed in the range of 20-50oC/min as 20, 30, 40 and 50oC/min whereas two different gas flow rate values as 60...
A preliminary study on the use of reservoir simulation and coal mine ventilation methane measurements in determining coal reservoir properties
Erdoğan, Sinem Setenay; Okandan, Ender; Kracan, Cevat Özgen; Department of Petroleum and Natural Gas Engineering (2011)
This thesis investigates methane emissions and methane production potentials from abandoned longwall panels produced or emitted due to mining activities either from coal seam or any underlying or overlying formations. These emissions can increase greenhouse gas concentrations and also pose a danger to the underground working environment and to miners. In addition to the safety issues, recovery and utilization of this gas is an additional source of energy. In this study, methane concentrations measured from ...
Optimum design and operation of 'a pump-piping-storage system'
Kaplan, H; Seireg, A; Dölen, Melik (Inderscience Publishers, 2001-01-01)
The study reported in this paper is undertaken to develop a computer simulation and an optimum design and operation strategy for a general storage system. The influence of various design parameters on the total operation cost of the system for a general delivery regime is also studied.
Numerical modeling of groundwater flow at a coal exploration site in Eskişehir – Turkey
Kılıç, Hatice; Yazıcıgil, Hasan; Department of Geological Engineering (2016)
Numerical groundwater models are useful tools for the evaluation of the complex groundwater systems in the pre-feasibility phase of the mining activities. They can be used to simulate three-dimensional groundwater system and its interaction with these activities. The purpose of this study is to develop conceptual and numerical models of the groundwater flow and evaluate the impact of preliminary dewatering of a coal exploration site in Eskişehir, Turkey. In this study, conceptual model including calculation...
Citation Formats
H. Soydan, “Environmental applications of hyperspectral anomaly and target detection algorithms,” Ph.D. - Doctoral Program, Middle East Technical University, 2017.