Narrow search
Showing 1 - 10 of 3,151
Cover Image
Optimal Water Quality Management Considering Spatial and Temporal Variations in a Tidal River
Qin, Huapeng; Jiang, Jingjing; Fu, Guangtao; Zheng, Ying - In: Water Resources Management 27 (2013) 3, pp. 843-858
There is an increasing need to establish wastewater treatment facilities for improving water quality of heavily polluted rivers in rapidly urbanizing areas. Optimization models are widely used to determine the pollutant removal levels at different pollution sources, with the aim of minimizing...
Persistent link: https://www.econbiz.de/10010794239
Cover Image
r.massmov: an open-source landslide model for dynamic early warning systems
Molinari, Monia; Cannata, Massimiliano; Meisina, Claudia - In: Natural Hazards 70 (2014) 2, pp. 1153-1179
result of the reimplementation of the MassMov2D into the free and open-source GRASS GIS with a series of enhancements aiming … with not optimized dataset resolution. Aside, the results of the research are a series of new GRASS GIS modules for …
Persistent link: https://www.econbiz.de/10010996860
Cover Image
Preliminary flood risk assessment: the case of Athens
Kandilioti, Georgia; Makropoulos, Christos - In: Natural Hazards 61 (2012) 2, pp. 441-468
interactions. A GIS-based multicriteria flood risk assessment methodology was therefore developed and applied for the mapping of … is applied to the Greater Athens area and validated for its central and most urban part. A GIS database of economic … flood risk map of the area. To implement this methodology, the IDRISI Andes GIS software was customized and used. It is …
Persistent link: https://www.econbiz.de/10010997033
Cover Image
Intrinsic Vulnerability Assessment for the Alluvial Aquifer in the Northern Part of Jordan Valley
Al-Amoush, Hani; Hammouri, Nezar; Zunic, Franz; … - In: Water Resources Management 24 (2010) 13, pp. 3461-3485
with the aid of geographic information system (GIS) techniques. The final results show that about 40% of the investigated …
Persistent link: https://www.econbiz.de/10010997923
Cover Image
Impact of proximity-adjusted preferences on rank-order stability in geographical multicriteria decision analysis
Ligmann-Zielinska, Arika; Jankowski, Piotr - In: Journal of Geographical Systems 14 (2012) 2, pp. 167-187
Persistent link: https://www.econbiz.de/10010867917
Cover Image
Market impacts of a multiyear mechanical fuel treatment program in the U.S.
Prestemon, Jeffrey P.; Abt, Karen L.; Huggett, Robert J. - 2008
We describe a two-stage model of global log and chip markets that evaluates the spatial and temporal economic effects of government-subsidized fire-related mechanical fuel treatment programs in the U.S. West and South. The first stage is a goal program that allocates subsidies according to fire...
Persistent link: https://www.econbiz.de/10009429453
Cover Image
Time to burn: Modeling wildland arson as an autoregressive crime function.
Prestemon, J.P.; Butry, D.T. - 2005
Six Poisson autoregressive models of order p [PAR(p)] of daily wildland arson ignition counts are estimated for five locations in Florida (1994-2001). In addition, a fixed effects time-series Poisson model of annual arson counts is estimated for all Florida counties (1995-2001). PAR(p) model...
Persistent link: https://www.econbiz.de/10009429523
Cover Image
Temporal changes in Angus bull attribute valuations in the Midwest
Tang, Minfeng; Thompson, Nathanael M.; Boyer, Christopher N. - In: Journal of agricultural and resource economics : JARE ; … 45 (2020) 3, pp. 518-532
Persistent link: https://www.econbiz.de/10012506856
Cover Image
Evaluation of rainfall erosivity and its temporal variation in the Yanhe River catchment of the Chinese Loess Plateau
Yue, B.; Shi, Z.; Fang, N. - In: Natural Hazards 74 (2014) 2, pp. 585-602
The potential of rain to generate soil erosion is known as the rainfall erosivity (R), and its estimation is fundamental for a better understanding of the erosive ability of certain rainfall events. In this paper, we investigated the temporal variations of rainfall erosivity using common daily...
Persistent link: https://www.econbiz.de/10010996032
Cover Image
Critical Environmental Flows to Support Integrated Ecological Objectives for the Yellow River Estuary, China
Sun, T.; Yang, Z.; Cui, B. - In: Water Resources Management 22 (2008) 8, pp. 973-989
The volume of inflowing water needed to meet multiple demands in the Yellow River Estuary of China was examined and quantified. Pressure on available environmental flows comes from varied ecological objectives, including maintenance of freshwater habitat for hundreds of plant and animal species,...
Persistent link: https://www.econbiz.de/10010997335