نتایج جستجو برای: river discharge

تعداد نتایج: 180125  

Journal: :مدیریت آب و آبیاری 0
مرتضی نبی زاده دانش آموخته کارشناسی ارشد مهندسی منابع آب، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان - ایران ابوالفضل مساعدی دانشیار دانشکده منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد، مشهد – ایران امیر احمد دهقانی استادیار گروه مهندسی آب، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان - ایران

in recent years, use of fuzzy collection theories for modeling of hydrological phenomenon's that is including complexity and uncertainly is considered scholars. so in this research, adaptive neuro-fuzzy inference system (anfis) is used for performance of river flow forecasting process. in this research, three parameters such as raining, temperature and daily discharge of lighvanchai basin ...

2010
Deidre Willies

As part of an ongoing study, the water quality of the Susquehanna River between Otsego Lake and its junction with Oaks Creek was monitored during the summer of 1997. This monitoring program is designed to determine the assimilative capacity of the Susquehanna River below the point of discharge of the Village Sewage Treatment Plant. The study helps to detect point sources of pollution. The water...

Journal: :مرتع و آبخیزداری 0
مجتبی نساجی زواره استادیار موسسه آموزش عالی علمی کاربردی جهاد کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران باقر قرمز چشمه استادیار موسسه آموزش عالی علمی کاربردی جهاد کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران فاطمه رحیم زاده عضو هیئت علمی پژوهشکده هواشناسی، تهران

daily constant discharges are needed estimating daily discharge in the hydrological model. the different number of statistical years, statistical deficiencies, and measurement error leads to the formation of time series with an uncommon time base. hence the reconstruction of daily discharge data is of paramount importance. in this research, daily discharge was reconstructed in two stages in one...

2002

By international convention, the official geographic survey agency of the country in which a river source is located makes the final determination of the source. Also by international convention, the true source is thespring or glacial discharge which is furthest from the mouth of the river. From regional maps, the Zaqu is by far the longest major tributary of the Mekong, joining the Ngomqu nea...

Journal: :international journal of advanced biological and biomedical research 2014
mohammad bagherian marzouni ali mohammad akhoundalib hadi moazed nematollah jaafarzadeh javad ahadian

karun river is the largest and most watery river in iran. this river is the longest river which located just inside iran and ahvaz metropolis drinking water supplied from karun river as well (fa.alalam.ir). karun river as the main source of water treatment plants in ahvaz, like most surface waters affected by various contaminants which caused changes in water quality of the river (www.aww.co.ir...

Journal: :Global change biology 2015
Bryan A Black Jason B Dunham Brett W Blundon Jayne Brim-Box Alan J Tepley

Analyses of how organisms are likely to respond to a changing climate have focused largely on the direct effects of warming temperatures, though changes in other variables may also be important, particularly the amount and timing of precipitation. Here, we develop a network of eight growth-increment width chronologies for freshwater mussel species in the Pacific Northwest, United States and int...

2016
Zhaojun Song Jianping Li Zhenkui Gu Wenjia Tang Jifeng Yu Luo Gao

Original scientific paper Studies on the evolution of paleo-channels in coastal areas are important for submarine engineering construction and to reveal changes in the global paleoenvironment. Thus, to explore the characteristics of paleo-channels during the late Last Glaciation in the western South Yellow Sea, digital terrain analysis method and ArcGis river extraction function were employed, ...

Extended abstract 1- Introduction Rivers are one of the dynamic landforms of natural landscapes that are subject to changes due to environmental variables and human interactions during different times and locations. Changes in the river, erosion of the bed and river bank are natural processes of alluvial rivers that destroy the surrounding agricultural land and damage human installations arou...

2004
Matthew J. Evans Louis A. Derry Christian France-Lanord

[1] Numerous hot springs flow within the steeply incised gorges of the central Nepal Himalayan front. The spring fluids have total dissolved solids (TDS) up to 7000 mg/L and Na, and K typically comprise >50% of the cationic charge, indicating that high-temperature silicate alteration is the dominant source of hot spring alkalinity. HCO3 is normally the dominant anion. Sr isotope ratios from the...

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