نتایج جستجو برای: precipitation intensity

تعداد نتایج: 237579  

Journal: :مرتع و آبخیزداری 0
امین صالح پورجم دانشجوی دکتری آبخیزداری، دانشکدة منابع طبیعی، دانشگاه تهران محسن محسنی ساروی *؛ استاد دانشکدة منابع طبیعی، دانشگاه تهران جواد بذرافشان ا؛ استادیار دانشکدة کشاورزی، دانشگاه تهران شهرام خلیقی سیگارودی استادیار دانشکدة منابع طبیعی، دانشگاه تهران

investigation of drought event has a great importance in the natural resources management and planning water resources management. in this research, the effect of the climate change on drought characteristics in northwest of iran was investigated using the hadcm3 model under a2 scenario. the statistical downscaling was executed using sdsm 4.2.9 and observed daily precipitation, observed predict...

2015
A. Casanueva S. Kotlarski

Daily precipitation statistics as simulated by the ERA-Interimdriven EURO-CORDEX regional climate model (RCM) ensemble are evaluated over two distinct regions of the European continent, namely the European Alps and Spain. The potential added value of the high-resolution 12 km experiments with respect to their 50 km resolution counterparts is investigated. The statistics considered consist of we...

2007
Liangcheng Tan Yanjun Cai Liang Yi Zhisheng An Li Ai

The precipitation variations of Longxi area, northeast margin of the Tibetan Plateau since AD 960 are reconstructed from Chinese historical documentary records. These records show that since AD 960, the precipitation of Longxi decreased and reached the lowest level at the end of the 17th and the 18th centuries. After this period, the precipitation gradually increased. The three short wet period...

2012
Jung Il Seo Futoshi Nakamura Takumi Akasaka Hidetaka Ichiyanagi Kun Woo Chun

[1] We examined the relationships between large wood (LW) export and precipitation patterns and intensity by analyzing the data on the annual volume of LW removed from 42 reservoirs and the daily precipitation at or near the reservoir sites. We also calculated the effective precipitation by considering the antecedent precipitation. Both daily and effective precipitation data were used as explan...

2017
Laura B Martínez-García Gerlinde B De Deyn Francisco I Pugnaire David Kothamasi Marcel G A van der Heijden

Substantial amounts of nutrients are lost from soils through leaching. These losses can be environmentally damaging, causing groundwater eutrophication and also comprise an economic burden in terms of lost agricultural production. More intense precipitation events caused by climate change will likely aggravate this problem. So far it is unresolved to which extent soil biota can make ecosystems ...

ژورنال: علوم آب و خاک 2010
آشفته, پریسا سادات , مساح بوانی, علیرضا ,

Climate change has different impacts on extreme events such as flood and drought. However, in Iran there are few researches about the impacts. This research was aimed to investigate maximum annual discharge (magnitude and frequency) that may occur due to climate change in Aidoghmoush Basin during 2040-2069 (2050s). At first, monthly temperature and precipitation data of HadCM3 model under the S...

2008
TIANJUN ZHOU RUCONG YU HAOMING CHEN AIGUO DAI YANG PAN

Hourly or 3-hourly precipitation data from Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks (PERSIANN) and Tropical Rainfall Measuring Mission (TRMM) 3B42 satellite products and rain gauge records are used to characterize East Asian summer monsoon rainfall, including spatial patterns in June–August (JJA) mean precipitation amount, frequency, and intensi...

2014
XIAOMING SHI DALE R. DURRAN

The sensitivity of stratiform midlatitude orographic precipitation to global mean temperature is investigated through numerical simulations. As a step toward understanding the relative influence of thermodynamic and dynamical processes on orographic precipitation, simple idealizations of Earth’s major north–south mountain chains are considered. The individual terrain elements occupy four island...

ژورنال: فیزیک زمین و فضا 2012
آذر زرّین عباس مفیدی غلامرضا جانباز قبادی

The causes of wintertime precipitation decrease in the Southern Coast of Caspian Sea (SCCS) compared to its counterpart in autumn, is investigated with the use of synoptic stations daily dataset of SCCS and gridded NCEP/NCAR and NOAA dataset. The structure of atmospheric circulation and synoptic and physical conditions over the Caspian Sea region which are dominate in the winter and autumn prec...

2012
C. R. Terai R. Wood D. C. Leon

The relationship between precipitation rate and accumulation mode aerosol concentration in marine stratocumulus-topped boundary layers is investigated by applying the precipitation susceptibility metric to aircraft data obtained during the VOCALS Regional Experiment. A new method to calculate the precipitation susceptibility that incorporates non-precipitating clouds is introduced. The mean pre...

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