نتایج جستجو برای: sand carrying winds standardized precipitation index zabol city
تعداد نتایج: 756762 فیلتر نتایج به سال:
The Standardized Precipitation Index (SPI) has become a popular measure of drought across the globe. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information system (GIS) software and Kriging method used for extracting dry areas. The zoning maps show most severe drought i...
The Standardized Precipitation Index (SPI) has become a popular measure of drought across the globe. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information system (GIS) software and Kriging method used for extracting dry areas. The zoning maps show most severe drought i...
The Madden–Julian oscillation (MJO) produced by a mesoscale model is investigated using standardized statistical diagnostics. Results show that upperand lowerlevel zonal winds display the correct MJO structure, phase speed (8 m s) and space–time power spectrum. However, the simulated free atmosphere moisture, outgoing longwave radiation and precipitation do not exhibit any clear MJO signal. Yet...
Aims & Backgrounds: Climate change, the quantitative and qualitative decline of water resources and the increasing trend of the world's population have made water management difficult. The purpose of this study was to assess the situation and management of meteorological and agricultural droughts from the point of view of experts and household supervisors in rural areas of Eslamabad Gharb. Meth...
abstract drought is one the most complicated and unknown natural disasters and rainfed agriculture is often the first sector to be affected by drought. in this research, we consider the drought monitoring from both meteorological and agricultural points of view. we have selected standardized precipitation index (spi) among the meteorological indices, with a one month time scale for the synoptic...
The backshore zone is transitional environment strongly affected by ocean, air and sand movements. On dissipative beaches, the formation of ephemeral dunes over the backshore zone plays significant contribution in the beach morphodynamics and sediment budget. The aim of this work is to describe a novel method to identify ephemeral dunes in the backshore region and to discuss their morphodynamic...
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
in desert areas high temperature and low precipitation limit growth and development of plants. under this circumstances wind becomes the most important erosion and transportation factor in these areas. there are four great sand masses in the central part of dasht-e-kavir namely rig-e-jen, rig-e-sargardan (shotori or halvan), rig-e-kharturan, and rig-e- chah-e-jam. these great sandy masses show ...
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