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Full-Text Articles in Physical Sciences and Mathematics
Application Of Remote Sensing In Aquatic Ecosystems, Foad Yousef
Application Of Remote Sensing In Aquatic Ecosystems, Foad Yousef
Dissertations, Master's Theses and Master's Reports - Open
I utilized state the art remote sensing and GIS (Geographical Information System) techniques to study large scale biological, physical and ecological processes of coastal, nearshore, and offshore waters of Lake Michigan and Lake Superior. These processes ranged from chlorophyll a and primary production time series analysies in Lake Michigan to coastal stamp sand threats on Buffalo Reef in Lake Superior. I used SeaWiFS (Sea-viewing Wide Field-of-view Sensor) satellite imagery to trace various biological, chemical and optical water properties of Lake Michigan during the past decade and to investigate the collapse of early spring primary production. Using spatial analysis techniques, I …
Terpene And Terpenoid Emissions And Secondary Organic Aerosol Production, Rosa M. Flores
Terpene And Terpenoid Emissions And Secondary Organic Aerosol Production, Rosa M. Flores
Dissertations, Master's Theses and Master's Reports - Open
Approximately 90% of fine aerosol in the Midwestern United States has a regional component with a sizable fraction attributed to secondary production of organic aerosol (SOA). The Ozark Forest is an important source of biogenic SOA precursors like isoprene (> 150 mg m-2 d-1), monoterpenes (10-40 mg m-2 d-1), and sesquiterpenes (10-40 mg m-2d-1). Anthropogenic sources include secondary sulfate and nitrate and biomass burning (51-60%), vehicle emissions (17-26%), and industrial emissions (16-18%). Vehicle emissions are an important source of volatile and vapor-phase, semivolatile aliphatic and aromatic hydrocarbons that are important …
Investigations Of Cloud Microphysical Response To Mixing Using Digital Holography, Matthew Jacob Beals
Investigations Of Cloud Microphysical Response To Mixing Using Digital Holography, Matthew Jacob Beals
Dissertations, Master's Theses and Master's Reports - Open
Cloud edge mixing plays an important role in the life cycle and development of clouds. Entrainment of subsaturated air affects the cloud at the microscale, altering the number density and size distribution of its droplets. The resulting effect is determined by two timescales: the time required for the mixing event to complete, and the time required for the droplets to adjust to their new environment. If mixing is rapid, evaporation of droplets is uniform and said to be homogeneous in nature. In contrast, slow mixing (compared to the adjustment timescale) results in the droplets adjusting to the transient state of …