نتایج جستجو برای: basins among sub

تعداد نتایج: 1353044  

2006
Torbjörn Tännsjö

Different attempts have been made to answer Reich's question why the majority of those who are hungry don't steal and why the majority of those who are exploited don't strike. The two most influential approaches have been the ideological one and the gunman theory. The gunman theory seems to have the upper hand in that it not only explains many cases of successful oppression by a minority of a m...

Journal: :Journal of the American Mosquito Control Association 2014
Justin E Harbison Marlon Henry Christopher Xamplas Lara R Dugas

The North Shore Mosquito Abatement District applies extended release larvicides including methoprene-based Altosid® XR Extended Residual Briquets to approximately 40,000 catch basins in the southern half of the District's operational area at the beginning of each season. Treatments begin in May and typically again 9 to 10 wk later when larvicide efficacy appears to wane. In 2013 spinosad-based ...

Journal: :اکو هیدرولوژی 0
زهرا نعیمی کلورزی دانش آموختۀ کارشناسی ارشد مهندسی منابع آب، دانشگاه علوم کشاورزی و منابع طبیعی گرگان خلیل قربانی دانشیار گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی گرگان میثم سالاری جزی استادیار، گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی گرگان امیر احمد دهقانی دانشیار گروه مهندسی آب، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

physiographic characteristics and climatic conditions are factors which contributing to river flow regime and understanding of relations between these factors and river flow in a basin result in its application for the ungauged sub-basins river flow prediction. in this research the relation between physiographic and climatic parameters of golestan province and rivers flow were examined by appli...

2015
Xiaoying Yang Qun Liu Yi He Xingzhang Luo Xiaoxiang Zhang

Despite the significant role of precipitation in the hydrological cycle, few studies have been conducted to evaluate the impacts of the temporal resolution of rainfall inputs on the performance of SWAT (soil and water assessment tool) models in large-sized river basins. In this study, both daily and hourly rainfall observations at 28 rainfall stations were used as inputs to SWAT for daily strea...

2008
M. Zappa

The hydrological response of Swiss river basins to the 2003 European summer heatwave was evaluated by a combined analysis of historical discharge records and specific applications of distributed hydrological modeling. In the summer of 2003, the discharge from headwater streams of the Swiss Central Plateau was only 40%–60% of the longterm average. For alpine basins runoff was about 60%–80% of th...

Journal: :Ices Journal of Marine Science 2021

Abstract The lipid-rich calanoid copepod, Calanus finmarchicus, plays a critical role in the Gulf of Maine pelagic food web. Despite numerous studies over last several decades, clear picture variability patterns and links with key environmental drivers remains elusive. This study applies model-based scaling sensitivity analyses to regional plankton dataset collected four decades (1977–2017). fo...

2010
Vladimir J. Alarcon William H. McAnally Gary Ervin Christopher Brooks

This paper presents results on nutrient concentrations estimations in the Upper Tombigbee watershed (northern Mississippi-Alabama region, USA). It details the hydrological model development and its use for providing stream flow, runoff, and nutrient concentrations (total phosphorus, TP, and total nitrogen, TN) for subsequent biological studies. Geographical locations of data collection on fish ...

2017
Fernando Flecha de Alkmim

The landforms and landscapes discussed in this book developed in a variety of terrains, which together express the diversity of the geological background of the Brazilian territory. Located essentially in the old and relatively stable nucleus of the South American plate (known as the South American platform), Brazil comprises seven major categories of tectonic units, which are as follows: crato...

2012
V. F. Bense H. Kooi G. Ferguson

[1] Using numerical models, we evaluate hydrogeological regime changes in high-latitude river basins under conditions of ground surface warming. These models describe transient heatand fluid flow coupled to the hydrogeological impacts of phase-changes from ice to liquid water. We consider an idealized unconsolidated sedimentary aquifer system in which groundwater flow is driven by topography, r...

Aims & Backgrounds: Today, soil erosion and sediment production are considered a danger to humans and their lives, so in areas where soil erosion is not controlled, soils gradually erode and lose their fertility. The aim of this study is to model the relationship between the amount of suspended sediment load and the geomorphic features of the Nirchai River Basin. Methodology: In this study, GIS...

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