More than one-third of the earth is characterized by arid and semi-arid climate and desertification phenomenon in these areas has been intensified in recent decades. This study aims to investigate the trend of desertification using vegetation indices and Iranian Model of Desertification Potential Assessment (IMDPA) in Abarkooh Plain, Yazd province, Iran. The satellite images (Landsat images in ...

extended abstract introduction zanjan has recently enjoyed considerable population and physical growth. the rapid irregular growth in population number caused unfavorable formation of informal settlement areas in the city. islamabad is of the largest informal accommodation regions in zanjan which was built as a consequence of massive rural migration during 1970s. although the area, at present,...

There are two challenges in classifying lidar points into ground and non-ground points on Texas coastal areas, which usually has a low-lying landform consisting of morphological features including dunes, tidal and river channels with levees, barren flats, buildings, and trees with varying cover density. The first is to remove buildings and trees meanwhile keeping seawall, dunes, levees and chan...

Analyzing the effective content of the Lebesgue density theorem played a crucial role in some recent developments in algorithmic randomness, namely, the solutions of the ML-covering and ML-cupping problems. Two new classes of reals emerged from this inquiry: the positive density points with respect to effectively closed (or Π1) sets of reals, and a proper subclass, the density-one points. Bienv...

groundwater resource is a very important water resource that has stable temperature, clear, tidy and confident. in recent years, population growth, industrialize and need to food and water, have exposed the groundwater resource on the risk. reduction of water resources is a main problem in throughout the world. in this research groundwater potential mapping was obtained in norabad plain, lorest...

Recent economic analyses emphasize that designated open-space increases the rents on neighboring residential land, and likewise, the probability of undeveloped land converting to residential uses. This paper addresses a different question: What is the effect of local open space conservation on the rate of growth in the density of existing residential land? The analysis is relevant for exurban d...