Vladimir J. Alarcon

Learn More
The development of web-based tools for visualization and processing of hyper-spectral images has been slow. Memory and processing capabilities of personal computers may have precluded the development of web-based tools. However, fast access to remote databases, increasing microprocessors' speed, and grid portals that provide interconnection between remote(More)
This paper investigates the effect of land use and digital elevation models spatial resolution and scale on the simulation of stream flow in two coastal watersheds located in the Mississippi Gulf Coast (USA). Four elevation datasets were used: USGS DEM, NED, NASA's SRTM and IFSAR (300, 30, 30, and 5 meter resolution, respectively). Three land use datasets(More)
Analytical shaded relief is commonly used for visualization of Digital Elevation Models (DEMs). Sometimes, the quality of unaltered analytical shaded relief can be lacking for identification of streams and water divides. Hydroshading [1] is a technique that provides enhanced capabilities of visualization of hydrologically-meaningful topographical features.(More)