Aeolian dust is rarely considered an important source for nutrients in large peatlands, which generally develop in moist regions far from the major centers of dust production. As a result, past studies assumed that the Everglades provides a classic example of an originally oligotrophic, P-limited wetland that was subsequently degraded by anthropogenic activities. However, a multiproxy sedimenta...

Lake-effect snowstorms in northern Utah and western New York with and without lightning/thunder are examined. Lake-effect snowstorms with lightning have significantly higher temperatures and dewpoints in the lower troposphere and significantly lower lifted indices than lake-effect snowstorms without lightning. In contrast, there is little difference in dewpoint depressions between events with a...

This paper is part of my doctoral dissertation, “Analysis and Modeling Techniques for Geo-Spatial Datasets,” which focuses on how to summarize, model, and format spatiotemporal data for analysis and mining. The dissertation consists of four main components: (1) spatio-temporal knowledge representation, (2) identifying meaningful concepts from raw data, (3) converting raw data to conceptual data...

Flood hedging reservoir operation is when a pre-storm release creates a small flood downstream to reduce the likelihood of a more damaging but uncertain larger flood in the future. Such pre-storm releases before a flood can increase reservoir storage capacity available to capture more severe flood flows, but also can immediately increase downstream flood damage and reduce stored water supply. T...

A radar data processing system gathers meteorological volumetric radar data by conducting a volume scan. Meteorologists use these radar data to detect thunderstorms. Radar subsystem exists to allow operational meteorologists to focus their attention on the regions of interest within the volumetric radar scan known as storm cells. When a storm is found, a number of parameters are computed. There...

The U.S. National Hurricane Center (NHC) issues advisories every six hours during the life of a hurricane. These advisories describe the current state of the storm, and its predicted path, size, and wind speed over the next five days. However, from these data alone, the question “What is the likelihood that the storm will hit Houston with hurricane strength winds between 12:00 and 14:00 on Satu...

The intent of this report is to provide the reader with infor­ mation useful for establishing a sewer system inventory and record system in his or her city. The major topic of this report is the collection of data relevant to storm sewers. However, because of the natural progression of Muncie’s inventory, emphasis will be given to the collection of data for sanitary and combination sewers. The ...

titlan in the Valley of Mexico, that Aztec city was the capital of a far-flung tributary empire. The emperor Motecuhzoma sat atop a complex social and political hierarchy, and the Aztec populace owed allegiance and tribute to nobles at several levels. Below the emperor were the kings of subject city-states. The Aztec dominion employed a policy of indirect rule, and imperial authorities supporte...

A team of students from City College of New York and the Bronx Community College, as well, traveled to the Yampa River Valley in the northwest of the Colorado State to conduct experiments related to the contamination of the air in January 2005. The objective of this report is to investigate if pollution from the valley reached Storm Peak Laboratory (SPL). According to the studies made on the tw...