GISHydro2000 is a geographic information system (GIS)-based program that automates the analysis of any stream within or draining into the State of Maryland. This document describes the activities conducted over a roughly 2-year period from Spring 2002 to Spring 2004 in the continued development and maintenance of this program. In particular this document gives an overview of six specific tasks outlined for completion during this project and describes the use of three dialog boxes/tools developed during this project. These dialog boxes/tools perform the following: 1) allows the engineer to update any arbitrary region to a new land use definition; 2) allows the engineer to develop explicit pixel-by-pixel reporting on the time of concentration calculation for the velocity method; and 3) allows the engineer to define hydrologic condition on a land use category-by-category basis. Other tasks completed during this project period include converting the entire spatial database to the Maryland Stateplane coordinate system in horizontal units of meters (was previously feet), adding a new, year 2000, land use dataset, and refreshing the ultimate zoning dataset to be consistent with this year 2000 land use.
Introduction. This hydrologic study is based on Potter's hypothesis that a stream writes its own life history in the shape of its channel and adjacent...
Transportation system customers need consistency in their daily travel times to enable them to plan their dailyactivities, whether that is a commuter ...
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