GEOGRAPHY AND ENVIRONMENTAL HAZARDS
Year:2016 | Volume:5 | Issue:17|Papers Count:8

1. Introduction: Floods are among Earth's most common and most destructive natural hazards. Floods create geomorphic hazards via changes in sediment transport and channel configuration (e.g. channel width, lateral migration, planform changes, etc). In this context, floodplain zoning and its application in spatial planning is important in non- structural measures in order to reducing flood damages. …

1. Introduction: Nowadays, population increase, progress in science and technology and development of industrial installations with the shortage of places in metropolitan areas have made considerable changes in the morphology of watersheds. Violation to territory of rivers, channels, and streams causes alterations in natural drainage pattern and overflowing due to the lower capacity of the changed channels and streams. …

1. Introduction: If environmental hazards, including those with atmospheric origin and terrestrial origin cause economic and human life losses for human societies, they would be considered as disasters. Terrestrial hazards, which mostly occur as catastrophic, may have economic and human life damages when they occur in a small scale but with high intensity. …

1. Introduction Mountain regions are increasingly endangered by a variety of disaster, including avalanche, debris flows, and rock slide. Some characteristics such as elevation, angle of slope, vegetation and climatic elements could affect the avalanche event. Indeed, avalanche is the second factor in soil erosion that causes demolition; therefore, it threatens the food safety. …

1. Introduction: Glaciers and snow covers in the mountains play an important role in the water budget of many areas of the world (Ramage and Isacks, 2003). In high altitudes and mountainous regions, snowmelt is a great contributor to the yearly runoff. The snow melt supplies 1.6 of people's needed water but due to global warming these glaciers may be at risk (Barnett, et al.2005). …

1. Introduction: Preserving the environment is one of the basic requirements of sustainable development, especially in rural areas. An issue which is a threat to the environment of rural areas is the lack of attention to collecting and burying wastes in the environment.In order to ensure that environmental regulations and the aims of sustainable development are observed and to prevent environmental pollution, the zoning of lands for hygienic burying of wastes and reaching the goals of sustainable development seemto be necessary. The current study aims to investigate the lands of Gonabad city for the burial of rural wastes. …

1. Introduction: Dust storm is an important atmospheric phenomenon. It has important environment, health, economic and social activities due to penetration of suspended particles of dust to the atmosphere. Measurements resulting from earth and satellite stations show the fact that particles of dust in storms, remain in the nature for a long time. …

1. Introduction: The effect of climate of the Earth's surface is the result of interaction of different levels of atmosphere and lithosphere. One of the factors which influences that interaction is the way the system pressure transcends it. In this way, the system pressure changes and can be changed and eventually may become an environmental hazard and geomorphodynamic phenomenon. Hazards are an integral part of human societies. …