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There are many types of natural gas fields including shale formations which are common especially in the St-Lawrence Valley (Canada). Since methane (CH4), the major component of shale gas, is odorless, colorless and highly flammable, in addition of being a greenhouse gas, methane emanations and/or leaks are important to consider for both safety and environmental reasons. On this regard, passive remote...
Characterization of ship plumes is very challenging due to the great variety of ships, fuel and the extent of a gas plume. In this work, imaging of ship plumes from an operating ferry boat was carried out using standoff midwave (3–5 μm) infrared hyperspectral imaging. Quantitative chemical imaging of combustion gases was achieved by fitting a radiative transfer model. Combustion efficiency maps were...
Airborne thermal infrared (TIR) imaging is often used to study the problematic of urban heat islands (UHI). However, surface temperature measurement using remote sensing techniques often fail to take into account the spectral emissivity of the investigated materials. This leads to mismatches between the true surface temperature and the measured brightness temperature obtained from conventional broadband...
Characterization of gas clouds are challenging situations to address due to the uneven distribution of these large entities as a function of time. Whether gas characterization is carried out for gas leaks surveys or environmental monitoring purposes, explosives and/or toxic chemicals are often involved. In such situations, airborne measurements present distinct advantages over ground based-technics...
Flares and smokestacks are hard-to-reach structures that might turn out being difficult to characterize once in operation, i.e. in industrial environments. Standoff thermal hyperspectral imaging represents a powerful approach for these challenging installations as it is a non-invasive technique providing valuable information about both the chemical composition and the spatial distribution in emission...
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