background: the phenomenon of dust is a serious environmental problem in dry and semi dry regions. it has a destructive effect for the residents of such regions. over two-thirds of iran is in areas of dry and semi-dry climate conditions. methods: in this research, dust fall measurements were taken in 41 stations across yazd city using a marble dust collector (mdco) located in different parts of...

in this research standardized precipitation index (spi) in a period of 22 years(1990 to 2011) was used for zoning of climatic and agricultural drought in south khorasanprovince, iran. rainfall data of six synoptic stations were collected and used for evaluationof meteorological drought. also, reports of some local offices such as natural resources,agriculture, regional water and environment dep...

Regional spatial functional zoning in China is a large-scale strategic planning and requires very advanced planning decision support technology. With respect to spatial functional zoning, the planning support system (PSS) is introduced as one of the most popular computer aided planning systems at the present time in this paper, and is further explained with the example of the latest regional ma...

Inclusionary zoning (IZ) is an affordable housing tool that links the production of affordable housing to the production of market-rate housing. IZ policies either require or encourage new residential developments to make a certain percentage of the housing units affordable to lowor moderateincome residents. In exchange, many IZ programs provide cost offsets to developers, such as density bonus...

This article presents the conceptual design of a collaborative web-based Geographic Information System (GIS) for land use planning in which all parties including land use planners, applicants/developers, and community stakeholders can participate. The approach employs three-tier architecture built in a Java client-server environment, and consists of the ESRI ArcGIS 9.2® Server Advanced Edition ...

In recent years, the DIDSON (Dual-frequency IDentification SONar),which can provide almost-video-quality images to identify objects even in turbid water has been used in enumerating fish populations, underwater structures inspection, oil/gas leakage detection and identification, underwater security, evidence searching, ship’s hulls and ports safety inspection, and underwater navigation and so o...

zonings of seismicity of fars province in iran and comparison its’ finding to other researches results is aim of this paper. we used statistical method for analyzing recorded earthquakes in study area during 110 years (1900 – 2010), using gis methods for this zoning. by using usgs seismic data of the region and fault maps, excel software and arcgis, we prepare a seismic risk map of study ar...

This research presents the geotechnical zoning map of district 1 in Shiraz municipality with focus on municipal deep excavation hazard assessment on data from 160 boreholes. For this purpose, the mechanical properties are determined according to the results of direct shear, uniaxial, and SPT tests and then excavation hazard assessment with depths of 3, 6 and 9 m, in situations where the excavat...