The winds of change.
نویسنده
چکیده
منابع مشابه
The Role of Wind Direction and Unidirectional Index in the Time Development and Determining the Sand Dunes Morphology (Case Study: Sadegh Abad Erg-Bafq)
Introduction: At present, about 36% of the land surface is covered by arid and semi-arid areas, with 19% of these levels completely dry and no plant life. In Iran, between one third and one-fourth of Iran's dry surfaces are covered with Sand and Sand Dunes. The arid and semi-arid conditions of Iran have caused about 80 million hectares of Iran to be covered by desert areas, sand dunes and insi...
متن کاملStatistical and synoptic analysis of erosive wind in North-West of Iran
The occurrence of erosive winds in the North West of Iran always causes damage to urban facilities and agricultural fields. By identifying behavior and synoptic patterns of Strong winds, necessary strategies can be chosen to deal with this destructive phenomenon. In this study, the fastest erosive winds and its steadiness coefficient were analyzed in selected stations of North West of Iran. Sui...
متن کاملThe sand dunes migration patterns in Mesr Erg region using satellite imagery analysis and wind data
Understanding the situation, behavior and the nature of sand dunes and also their location, transport and deposition are very important. On the other hand, the importance of sand dunes is due to the impacts that they have on water and soil resources, flora and fauna and human infrastructure. This study, looks at the development patterns of sand dunes in Mesr erg region. In the first part, data ...
متن کاملAnalysis of wind erosion and transport potential of quick sands located in the territory of Lut desert
Extended abstract 1- Introduction Arid and semi-arid regions of the world cover more than 30% of the earthchr('39')s surface. Wind, as one of the erosive agents of the earthchr('39')s surface, causes the transport of sand and deformation in arid areas. Wind erosion is directly related to wind speed. The higher the wind speed is above the threshold value, the more increase in wind speed. This ...
متن کاملتأثیر نوسانات آب‌‌وهوایی بر رخداد پدیدۀ گرد و غبار (مطالعۀ موردی گرد و غبارهای غرب و جنوب غرب ایران)
Abstract Climate change has become a widespread and relatively dominant phenomenon at present. It has affected many atmospheric processes such as rainfall, dust storms, temperature increasing and so for. These changes are very important for the living environment and thus needed to study and understand. Therefore the main objective of this study is to investigate the temporal and spatial variat...
متن کاملInvestigation of the Role of Different Land Uses in a Sand Storm by using Wind Rose and Storm Rose (Case Study: Kashan)
The purpose of this research is to analyze anemometer data to study the wind regime in Kashan and to investigate the role of different land uses in sand storms. Therefore, anemometer data obtained from synoptic station of Kashan were analyzed during a 40-year period (1966-2005) using different methods. Seasonal and annual wind roses and storm roses for different lands were created using WRPlot ...
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ورودعنوان ژورنال:
- AJNR. American journal of neuroradiology
دوره 36 2 شماره
صفحات -
تاریخ انتشار 2015