نتایج جستجو برای: amount of rainfall

تعداد نتایج: 21168063  

2005
T. Morimoto Y. Ouchi M. S. Baloch K. Hatou

To improve the quality of Satsuma mandarin during the developing and maturing stages, an optimal watering operation was investigated through identification and optimization using intelligent control techniques. Dynamic changes in the sugar content and the citric acid of Satsuma mandarin, as affected by rainfall and sunshine duration, was first identified using neural networks, and then an optim...

2012
K. Meusburger

Rainfall erosivity, considering rainfall amount and intensity, is an important parameter for soil erosion risk assessment under future land use and climate change. Despite its importance, rainfall erosivity is usually implemented in models with a low spatial and temporal resolution. The purpose of this study is to assess the temporaland spatial distribution of rainfall erosivity in form of the ...

2005
D. Tetzlaff

The importance of considering the spatial distribution of rainfall for process-oriented hydrological modelling is well-known. However, the application of rainfall radar data to provide such detailed spatial resolution is still under debate. In this study the process-oriented TAC (Tracer Aided Catchment model, Distributed) model had been used to investigate the effects of different spatially dis...

Journal: :Journal of Climate 2022

Abstract Despite the development of sophisticated statistical and dynamical climate models, a relative long-term reliable prediction Indian summer monsoon rainfall (ISMR) has remained challenging problem. Toward achieving this goal, here we construct series physical networks based on global near-surface air temperature field. We show that some characteristics directed weighted can serve as effi...

Journal: :پژوهش های جغرافیای طبیعی 0
مهدی عرفانیان استادیار گروه مرتع و آبخیزداری، دانشکدة منابع طبیعی، دانشگاه ارومیه سیما کاظم پور دانش آموختة کارشناسی ارشد آبخیزداری، دانشکدة منابع طبیعی، دانشگاه ارومیه حسن حیدری استادیار گروه جغرافیا، دانشکدة ادبیات و علوم انسانی، دانشگاه ارومیه

extended abstract introduction rainfall prediction at regional and global scales is mostly as principle component of hydro-meteorological studies in un-gauged regions. ground-based measurements of precipitation are available with high accuracy in synoptic stations. spatial distribution of operational stations is now as one of the biggest problems in the developing countries such as iran, which ...

2000
D. L. Liu B. J. Scott

This study evaluated the accuracy of several models for estimating daily solar radiation (Q) across Australia. Data from 39 sites were taken from MetAccess. The sites were grouped into four climatic zones. Coefficients of nine models, including two newly developed formulae, were fitted for the 39 sites. Correlation coefficients (R2) between estimated Q and measured Q and root mean squared error...

Journal: :international journal of advanced biological and biomedical research 0
tigist german wolde wondo genet agricultural research center, p. o. box 198 shashemane, ethiopia dejene taddesse banjaw wondo genet agricultural research center, p. o. box 198 shashemane, ethiopia

performance of chamomile (matricaria chamomilla l.) was evaluated on twelve transplanting dates that were arranged at 30 days interval; during 2013-2014 on experimental field of wondo genet agricultural research center; using rcbd design with three replications. transplanting time exerted a very highly significant (p<0.0001) influence on plant height, flower yield and essential oil yield; essen...

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If other factors are held constant erosion, soil loss rate is directly proportional to the amount of rain erosion. Various measures have been proposed so far in the world, depending on geographic location, scale, local conditions and the type of measurement are different. A review of studies conducted worldwide and the limited rain gauge equipped, modified Fournier index is calculated based on ...

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