Now showing items 11-16 of 16
A Dendrochronological Analysis of Vegetation Change and Climate History in Two Southern Appalachian Balds, Craggy Gardens and Big Bald, NC
(Virginia Tech, 2007-04-06)
In the southern Appalachians, unforested openings known as balds persist on or near mountain peaks. These high elevation openings support a variety of unusual biota and are considered globally rare as a result of their ...
Analysis of Sinkhole Susceptibility and Karst Distribution in the Northern Shenandoah Valley, Virginia: Implications for Low Impact Development (LID) Site Suitability Models
(Virginia Tech, 2005-05-13)
Increased stormwater runoff due to urban development in the northern Shenandoah Valley (NSV) region of Virginia has prompted local officials and representatives to consider Low Impact Development (LID) as a stormwater ...
Modeling Flash Floods in Small Ungaged Watersheds using Embedded GIS
(Virginia Tech, 2006-01-27)
Effective prediction of localized flash flood regions for an approaching rainfall event requires an in-depth knowledge of the land surface and stream characteristics of the forecast area. Flash Flood Guidance (FFG) is ...
GIS and Satellite Visibility: Viewsheds from Space
(Virginia Tech, 2005-04-28)
The Global Positioning System (GPS) has recently become the significant mapping tool for millions of customers worldwide, providing its users with accurate terrestrial positions almost instantaneously. The functionality ...
A GIS-Based Landscape Scale Model for Native Bee Habitat
(Virginia Tech, 2007-09-11)
Through pollination, bees are responsible for the persistence of many biological systems on our planet. Bees have also been used for thousands of years in agriculture to improve crop quality and yield. Recently, there ...
A GIS-Based Optical Viewshed Optimization Algorithm
(Virginia Tech, 2007-05-31)
Traditional viewshed analyses distinguish between those areas which can be seen from a given observation point and those which cannot be seen. Given a surface digital elevation model (DEM) and observer properties (location ...