نتایج جستجو برای: 2000 for aidoghmoush basin using mann

تعداد نتایج: 11453022  

Journal: :فیزیک زمین و فضا 0
اصغر کوهپیما کارشناس ارشد آبخیزداری، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران سادات فیض نیا استاد، گروه گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران حسن احمدی استاد، گروه گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران محمد معظمی دانشجوی دکتری آبخیزداری، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران

designing effective strategies for sediment management and control is closely related to identification of sediment sources in a drainage basin. one of the methods for investigating sediment sources is using magnetic tracers for erosion and sediment yield studies. sediment source identification using magnetic characteristics is a simple, inexpensive, quick and non-destructive method having appl...

Journal: :Remote Sensing 2022

Characterizing spatiotemporal patterns of snowfall is essential for understanding cryosphere responses to warming climate stress. The changes in and topographic controls mountain regions still need be clarified. This study proposes a general parsimonious methodology obtain the frequency mountainous areas. employed easily transferable any other region. Utilizing daily MODIS observations from Jun...

2015
Dingzhi Peng Jing Fang

This paper develops a new routing algorithm for improving simulation capacity of physically-based hydrological models applied to sparsely-gauged river basins. The study area is the Lhasa River basin, a large plateau basin with an area of 26,225 km2 in southwest China. In the basin, observations from three hydrological stations are available, and the observed hourly rainfall and summer stream fl...

2007
Warren Workman David J. Birnie

The Guyana-Suriname Basin is a halfgraben Atlantic-margin basin on the northeast coast of South America (Figure 1). It was rated as the second most prospective unexplored basin in the world according to the USGS in its World Petroleum Assessment 2000. World class Canje source beds are in a mature position (Figure 2). The main reservoir targets are Upper Cretaceous and Lower Tertiary basin floor...

Journal: :int. journal of mining & geo-engineering 2014
amir negahdari mansour ziaii javad ghiasi-freez

understanding the performance and role of each formation in a petroleum play is crucial for the efficient and precise exploration and exploitation of trapped hydrocarbons in a sedimentary basin. the lorestan basin is one of the most important hydrocarbon basins of iran, and it includes various oil-prone potential source rocks and reservoir rocks. previous geochemical studies of the basin were n...

Journal: :Remote Sensing 2021

The damming of rivers has altered their hydrological regimes. current study evaluated the impacts major interventions Zhikong and Pangduo hydropower dams on Lhasa River, which was exposed in form break change points during double-mass curve analysis. coefficient variability (CV) for hydro-meteorological variables revealed an enhanced climate phenomena River Basin (LRB), where (LR) discharge var...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم اجتماعی و اقتصادی 1389

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

Journal: :آب و خاک 0
مهدی اکبری زهرا سیف حمید زارع ابیانه

abstract evapotranspiration (et) is one of the most important components of the water balance, it is also one of the most difficult to measure. despite the importance of et, methods to obtain values of et are still limited. conventional methods are very local, ranging from point to field scale. estimates of the et over the entire area, especially for irrigated areas, are essential, as these can...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1390

we commence by using from a new norm on l1(g) the -algebra of all integrable functions on locally compact group g, to make the c-algebra c(g). consequently, we find its dual b(g), which is a banach algebra so-called fourier-stieltjes algebra, in the set of all continuous functions on g. we consider most of important basic theorems about this algebra. this consideration leads to a rather com...

2009
Robert R. Gillies Shih-Yu Wang

The lake elevation of the Great Salt Lake (GSL), a large closed basin in the arid western United States, is characterized by a pronounced quasi-decadal oscillation (QDO) (Lall and Mann 1995). Wang et al. (2009a) found that the variation of the GSL elevation is very coherent with the QDO of sea surface temperature anomalies in the tropical central Pacific, known as the Pacific QDO (White and Liu...

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