of the terrain surface through digital elevation models (DEMs) strongly depends on data
collection methods and DEM data structures. For efficiency and availability reasons regular point …

Eastern Ethiopia is severely affected by soil erosion as it is revealed by the commonly occurring
deep and wide gullies. These gullies are dynamically expanding into agricultural lands …

Air-borne laser scanning is an applicable method to derive digital terrain models (DTMs) in
wooded terrain. A considerable amount of the laser points are reections on the tree tops (…

In three psychiatric hospitals in Baden‐Wuerttemberg, Germany, a physician–nurse shared
leadership model was implemented in 1997 by the hospital management. The whole hospital…

In this study, geographic information system (GIS)-based hydrologic and hydraulic modeling
was used to perform a flood risk assessment for Onaville, which is a fairly new, rapidly …

There is a general agreement on the impact of beaver dams regarding the increasing diversity
of habitats and the improvement of the water quality, whereas the retention effect during …

Airborne laser scanners have been increasingly used in recent years for the collection of
terrain elevation data especially in wooded areas. The technology demands new processing …

Precipitation is the most important input to hydrological models, and its spatial variability
can strongly influence modeled runoff. The highly dense station network WegenerNet (0.5 …

A GIS-based algorithm has been developed for the automated extraction of river paths and
catchment areas from a grid DEM, including automatic removal of spurious pits. It consists of …

Since the storage requirements of the BEM are proportional to N/sup 2/, only relative small
problems can be solved on a PC or a workstation. In this paper we present an adaptive …