نتایج جستجو برای: s catchment

تعداد نتایج: 722698  

2011
Dr John Williams

There are a wide range of catchment management models in Australia, that vary according to the resources and historical framework of the particular catchment and jurisdiction. The Natural Resources Commission (NRC) has reviewed the progress of catchment management in New South Wales over the past six years and has observed the development of significant co-operative relationships, particularly ...

2010
NARAYANA SWAMY PIETRO ALESSANDRO BRIVIO

The integration of visible and infrared satellite remote sensing information is made with ground meteorological and hydrological data to study the application of a semi-distributed temperature index model over a small high mountainous catchment in the Italian Alps. Nine sets of digital Landsat MSS and TM images covering a hydrological year were processed. Digital elevation model, slope, aspect ...

Journal: :تحقیقات جغرافیایی 0
مجید زاهدی مریم بیاتی خطیبی داود مختاری فریبا کرمی مریم بیاتی خطیبی داود مختاری

because of the presence of special properties in semi arid catchment, these areas are suitable for drought events. the responses of these areas to drought events are in the form of the disappearance of plant cover on surfaces slopes, intensive erosion or landslide occurrence on side of rivers’ course. azarshahr catchment (situated in 37ëš 36′ to 37ëš 49′ n and 44ëš 20′ to 45ëš 49′ e) ...

2013
Hocine Hénine

S WETPOL 2013 October 13-17, 2013 Nantes FRANCE 211 Wetland's role in pollutant management at the catchment scale

ژورنال: علوم آب و خاک 2018
مظلوم علی آبادی, یونس, واعظی, علی رضا,

Water loss and nutrients loss are one of the important signs of natural resource degradation in the catchments. The amount of loss of these resources is affected by several factors including the characteristics of rainfall. In this study, the data of stream discharge (Q), total dissolve solids (TDS), and total nutrient loss ratio (NR) along with rainfall characteristics were analyzed for the ev...

Journal: :Journal of environmental quality 2009
Jean-Baptiste Charlier Philippe Cattan Marc Voltz Roger Moussa

The aim of this article is to determine how the nematicide cadusafos [S,S-di-sec-butyl O-ethyl phosphorodithioate] contaminates water and soils at two scales, subcatchment and catchment. The study site was a small banana (Musa spp.)-growing catchment on the tropical volcanic island of Guadeloupe in the Caribbean. Two application campaigns were conducted, one in 2003 on 40% of the catchment and ...

Journal: :The Science of the total environment 2008
Heather V Goss Stephen A Norton

We experimentally acidified three low alkalinity first-order streams in forested catchments in Maine, USA. We evaluated water samples from a reference site above the point of hydrochloric acid addition and from two or three sites located 16 to 94 m downstream. Neutralization included protonation of weak acids, adsorption of sulfate, and ion exchange of base cations and aluminum (Al) for protons...

2007
Lawrence V. Stanislawski Michael P. Finn Mark Barnes E. Lynn Usery

The catchment, or catchment area, is the area associated with a segment of a drainage network. Surface runoff in a catchment flows into the associated network segment. Catchment area is commonly used for estimating watershed parameters, such as upstream drainage area, flood frequency, or surface-water flow. Hydrologic analyses require relatively accurate catchment area estimates to furnish subs...

Journal: Geopersia 2018

The karstic Rijab Spring with an average discharge of 3290 l/s is located in the Alvand River basin in the northwest of the Zagros, Iran, which drains Asmari formation. To investigate groundwater flow in the catchment area of the Spring, the physicochemical parameters include major cations and anions, discharge, EC, pH, and temperature were studied from September 2000-2002. The results indicate...

2008
Shaakeel Hasan Peter A. Troch Patrick W. Bogaart Corinna Kroner

[1] In a previous study (Hasan et al., 2006) we applied time series analysis and distributed hydrological modeling techniques to investigate the effect of hydrological processes on observed terrestrial gravity residuals. In this study we apply terrestrial gravity observations (measured in one location) to constrain simple hydrological models in a catchment around the gravimeter. A superconducti...

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