نتایج جستجو برای: pervasive precipitation

تعداد نتایج: 83660  

Journal: :iranian journal of environmental sciences 0
mahmoud molanejad scientific faculty member of iranian research organization for science and technology (irost), tehran, iran mojtaba mahdian mahforouzi phd student of climatology, university of tehran, tehran, iran mohammad amin heidari phd student of climatology, university of tehran, tehran, iran

precipitation patterns are influenced by many factors, such as global atmospheric circulations to name but one. precipitation patterns in iran have always had great fluctuations even in a smaller scale like the alburz mountain range. the present research has tried to find the relationship between global atmospheric patterns and the pervasive precipitation ones in alburz. for doing so, 17 climat...

Journal: Pollution 2017

Precipitation patterns are influenced by many factors, such as global atmospheric circulations to name but one. Precipitation patterns in Iran have always had great fluctuations even in a smaller scale like the Alburz Mountain Range. The present research has tried to find the relationship between global atmospheric patterns and the pervasive precipitation ones in Alburz. For doing so, 17 climat...

Precipitation patterns are influenced by many factors, such as global atmospheric circulations to name but one. Precipitation patterns in Iran have always had great fluctuations even in a smaller scale like the Alburz Mountain Range. The present research has tried to find the relationship between global atmospheric patterns and the pervasive precipitation ones in Alburz. For doing so, 17 climat...

Journal: :تحقیقات جغرافیایی 0
امیر حسین حلبیان گروه جغرافیا، دانشگاه پیام نور فرشته حسینعلی پور جزی مدرس مدعو دانشگاه پیام نور باغبهادران

in this research, the frequency of the jet streams associated with extreme and pervasive precipitation has been analyzed using environmental to circulation approach. based on the 99th percentile index, 109 days of the extreme and pervasive precipitation was selected from the irimo data base ( including 33 synoptic, climatic and rain gage stations during 15992 days from farvardin, 1st, 1340 to d...

Introduction According to geographical location of Iran and relatively high elevation of most of its areas above sea-level, occurrence of frosts has many negative effects on different sections, such as agricultural, transportation and energy. Frosts are generally related to displacement and movement of cold anticyclones from northern latitudes to Iran. Wide range of synoptic characteristics is...

Journal: :Communications earth & environment 2021

Abstract Most of Earth’s rain falls in the tropics, often highly seasonal monsoon rains, which are thought to be coupled inter-hemispheric migrations Inter-Tropical Convergence Zone response cycle insolation. Yet characterization tropical rainfall behaviour geologic past is poor. Here we combine new and existing hydroclimate records from six large-scale regions with fully independent model-base...

2016
JUAN SULCA MATHIAS VUILLE YAMINA SILVA KEN TAKAHASHI

Extreme precipitation events in the Peruvian Andes have significant socioeconomic impacts, yet their atmospheric dynamics are poorly understood. Here austral summer (December–March) wet and dry spells and their continentaland large-scale teleconnections are analyzed using reanalysis, gridded, and in situ precipitation data. Dry and wet spells in the Peruvian Andes show a pervasive dipole patter...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

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...

رجب زاده, محمدعلی, سینا , سینا ,

The Qatruyeh iron occurrences are located in the eastern edge of the Sanandaj-Sirjan metamorphic zone, southwestern Iran (at 50 Km northeastern of Neyriz), and are hosted by a Late Proterozoic to Early Paleozoic sequence which is dominated by metamorphosed carbonate rocks. The Iron ores occur as layered, massive and disseminated magnetite and in lesser amount as hematite-bearing veins and veinl...

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