نتایج جستجو برای: land surface hydrological model

تعداد نتایج: 2723466  

2018
Roy A Sanderson James A Maas Alasdair P Blain Russell Gorton Jessica Ward Sarah J O’Brien Paul R Hunter Stephen P Rushton

Background Campylobacteriosis is a major cause of gastroenteritis in the UK, and although 70% of cases are associated with food sources, the remainder are probably associated with wider environmental exposure. Methods In order to investigate wider environmental transmission, we conducted a spatio-temporal analysis of the association of human cases of Campylobacter in the Tyne catchment with w...

2009
Brian S. Helms Jon E. Schoonover Jack W. Feminella

We examined the influence of land use/land cover (LULC) on macroinvertebrate assemblages and environmental conditions in streams draining 18 small watersheds in the Southern Outer Piedmont ecoregion in Georgia, USA, over a 24-mo period of record. Specifically, we analyzed relationships among LULC categories (i.e., % impervious surface [IS], pasture, silviculture, and deciduous/evergreen forest)...

2007
Menglin Jin Christa Peters-Lidard

Urban surface temperature is hazardously higher than surrounding regions (so-called urban heat island effect UHI). Accurately simulating urbanization-induced temperature hazard is critical for realistically representing urban regions in the land surface-atmosphere climate system. However, inclusion of urban landscapes in regional or global climate models has been overlooked due to the coarse sp...

2016
Y. Goldsmith A. Ayalon

a r t i c l e i n f o a b s t r a c t The isotopic composition of precipitation (δ P) is one of the most widely used and informative terrestrial paleoclimate proxies. δ P integrates a series of hydrological processes; therefore, any interpretation of paleohydrology using δ P requires a thorough understanding and quantification of the full hydrological cycle. In this paper, we use modern data to...

Journal: :اکو هیدرولوژی 0
سهیلا آقابیگی امین استادیار گروه منابع طبیعی، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی علیرضا ایلدرومی دانشیار گروه مرتع و آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه ملایر حمیدرضا نوری استادیار گروه مرتع و آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه ملایر افسانه حقیقی کرمانشاهی دانش آموختۀ رشتۀ آبخیزداری، گروه مرتع و آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه ملایر

the devastating impact of land use change in the watershed is increasing the generation rate of sediment and entrance to rivers and sedimentation in reservoirs. according to this, studying on impact of land use change on hydrological process is necessary. aim of this study was investigating the impact of land use change on suspended sediment during 1994 to 2010 by swat model in dinevar watershe...

2007
Assefa M. Melesse Qihao Weng Prasad S.Thenkabail Gabriel B. Senay

The history of remote sensing and development of different sensors for environmental and natural resources mapping and data acquisition is reviewed and reported. Application examples in urban studies, hydrological modeling such as land-cover and floodplain mapping, fractional vegetation cover and impervious surface area mapping, surface energy flux and micro-topography correlation studies is di...

2012
Ellen Wohl Ana Barros Nathaniel Brunsell Nick A. Chappell Michael Coe Thomas Giambelluca Steven Goldsmith

655 Fresh water is under pressure in the humid tropics from population growth, land use and climate change, all of which are influenced by humans. These pressures are likely to have profound consequences. Here we present a research vision for the humid tropics as an outcome of a community workshop held in Hawaii in March 2011. This report includes various perspectives from the international sci...

Journal: :Journal of environmental quality 2014
Sabine Peukert Bruce A Griffith Phillip J Murray Christopher J A Macleod Richard E Brazier

Arable land use is generally assumed to be the largest contributor to agricultural diffuse pollution. This study adds to the growing evidence that conventional temperate intensively managed lowland grasslands contribute significantly to soil erosion and diffuse pollution rates. This is the first grassland study to monitor hydrological characteristics and multiple pollutant fluxes (suspended sed...

Extended abstract 1- Introduction      Land use includes all types of land uses to meet different human needs. In other words, land use refers to the type of human use of land, and this type of use is related to the value of the land and (its) natural characteristics. To understand and identify, land use changes using satellite data to provide a broad and integrated view of an area, reproduci...

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