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Full-Text Articles in Physical Sciences and Mathematics
Predicting The Water Quality Of Shallow Arctic Ponds Using Remote Sensing, Gabriela Tarin
Predicting The Water Quality Of Shallow Arctic Ponds Using Remote Sensing, Gabriela Tarin
Open Access Theses & Dissertations
Barrow, Alaska is in a region dominated by Arctic tundra of which a substantial part is covered by lakes and ponds. Despite their dominance in the landscape, freshwater ecosystems in the Arctic have been insufficiently studied. It is clear that furthering understanding of how Arctic water bodies are responding to warming will depend on the analysis of changes in the concentration of organic and inorganic constituents in the water; however, scientists are faced with the task of sampling many remote sites in a relatively hostile environment. Thus, the exploration and incorporation of remote methods for monitoring changes in water quality. …
Study Of No2 Photolysis Rate Coefficients For The Paso Del Norte Region, Pema Wangchuk
Study Of No2 Photolysis Rate Coefficients For The Paso Del Norte Region, Pema Wangchuk
Open Access Theses & Dissertations
The photolysis of nitrogen dioxide is one of the most influential chemical processes in the formation of photochemical air pollution. In this study, we compared simulated and measured nitrogen dioxide photolysis rate coefficients (J_(NO_2 )) for the Paso Del Norte (PdN) region. The Tropospheric Ultraviolet-Visible (TUV) radiation transfer model was used to calculate J_(NO_2 ) values. The measurements of hemi-spherically integrated, spectrally resolved solar photon flux between the wavelengths 400 and 700 nm were used to obtain the photolysis rate coefficients for ã??NOã??_2. Results are presented for a selected episode on July, 2015. The work investigated the use of measured …
The Use Of Remote Sensing Technologies And Models To Study Pollutants In Pdn Region, Suhail Mahmud
The Use Of Remote Sensing Technologies And Models To Study Pollutants In Pdn Region, Suhail Mahmud
Open Access Theses & Dissertations
Using a suite of modeling techniques and instrumentation we study the atmospheric pollutants in the PdN Region. The first objective of this work was to measure hemi-spherically integrated, spectrally resolved solar photon flux (actinic flux) between the wavelengths 300 and 700 nm, and use the measured actinic flux to improve air quality simulations. Actinic flux was measured in the PdN region in order to calculate photolysis rate coefficients for different pollutants. The improved photolysis rate coefficients were then integrated into a photochemical air quality model (CAMx) in order to improve air quality forecasting. We present the simulations performed for a …