نتایج جستجو برای: amount of precipitation

تعداد نتایج: 21169577  

Drought is the main causes of significant water imbalance, increase of crop losses or limitation in water consumption, and finally large number of socioeconomic and environmental problems. Precipitation amount is the most important climatic variables that its spatiotemporal variability has a great influence on water resources availability along with the effects of climate change. The Angot inde...

Journal: :Hydrology 2021

Different methods are known for interpolating spatial data. Introduced a few years ago, the initial version of Most Probable Precipitation Method (MPPM) proved to be valuable competitor against Thiessen Polygons Method, Inverse Distance Weighting and kriging estimating regional trend precipitation series. Climate Analyzer, introduced here, is user-friendly toolkit written in Matlab, which imple...

A. Khormali A. R. Sharifov D. I. Torba

In this work, scaling tendency and amount of precipitation of barium sulfate (BaSO4) were determined; the process is depending on temperature, pressure and mixing ratio of injection and formation of waters. Results showed that BaSO4 precipitation is largely dependent on mixing ratio. Temperature and pressure had no influence on BaSO4 precipitation. Different sca...

Journal: :Science 2003
Dominik Fleitmann Stephen J Burns Manfred Mudelsee Ulrich Neff Jan Kramers Augusto Mangini Albert Matter

A high-resolution oxygen-isotope record from a thorium-uranium-dated stalagmite from southern Oman reflects variations in the amount of monsoon precipitation for the periods from 10.3 to 2.7 and 1.4 to 0.4 thousand years before the present (ky B.P.). Between 10.3 and 8 ky B.P., decadal to centennial variations in monsoon precipitation are in phase with temperature fluctuations recorded in Green...

2016
Bo Qu Aifeng Lv Shaofeng Jia Wenbin Zhu Roberto Ranzi

Based on a high-quality dataset of 713 daily precipitation series, changes in daily precipitation events during 1960–2013 were observed in China’s ten largest river basins. Specifically, the amount of precipitation in four categories defined by fixed thresholds and their proportion on total precipitation were analyzed on annual and seasonal time scales. Results showed annual precipitation incre...

ژورنال: سلامت و محیط زیست 2011
ذوقی, محمدجواد, قویدل, آریامن,

Background and Objectives:. Owing to the non-seperated municipal solid wastes the leachate form in land fills contain high amounts of heavy metalls and toxic substances Hence, leachate treatment is a serious problem. In order to design leachate treatment and collection systems, estimation of quality and quantity of leachate is of high necessity. Hydrologic Evaluation of Landfill Performance (HE...

1998
RICHARD W. KATZ MARC B. PARLANGE

Simple stochastic models fit to time series of daily precipitation amount have a marked tendency to underestimate the observed (or interannual) variance of monthly (or seasonal) total precipitation. By considering extensions of one particular class of stochastic model known as a chain-dependent process, the extent to which this ‘‘overdispersion’’ phenomenon is attributable to an inadequate mode...

Journal: :international journal of nanoscience and nanotechnology 2013
m. khorasani-motlagh m. noroozifar m. yousefi sh. jahani

a facile co-precipitation method for the synthesis of well-dispersed ndfeo3 nanocrystals is developed in the presence of octanoic acid as surfactant. co-precipitation can produce fine, high-purity, stoichiometric particles of single and multicomponent metal oxides. the product is characterized by fourier transform infrared spectroscopy (ft-ir), x-ray diffraction (xrd), scanning electron microsc...

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...

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