نتایج جستجو برای: lying coastal zone have been severely and increasingly impacted by rising sea

تعداد نتایج: 17887844  

2017
Dean B. Gesch

Coastal inundation has been identified as an important natural hazard that affects densely populated and built-up areas (Subcommittee on Disaster Reduction, 2008). Inundation, or coastal flooding, can result from various physical processes, including storm surges, tsunamis, intense precipitation events, and extreme high tides. Such events cause quickly rising water levels. When rapidly rising w...

2014
Larry Hildebrand

The risk of climate-change induced sea-level rise damage to human and economic development in coastal areas of The Gambia is mounting. The combined effect of sea-level rise and changes in upstream river discharge, erosion of coastal embankmentsand changes to natural sediment dynamics, pose a serious threat to the natural resources base and livelihood opportunities of coastal communities(UNDP, 2...

M. Heydari S. Allahyaribeik

The process of erosion and desertification affects social communities, agricultural lands and natural resources in coastal areas. The rapid coastline changes would cause social and economic issues in the coastal areas. In this study, Miankaleh coasts and the eastern coastlines of Amirabad port have been surveyed due to existing benchmarks since June 2013 until December 2015 in order to analyze ...

2017
Wietse I. Van De Lageweg Aimée B. A. Slangen

The world’s largest deltas are densely populated, of significant economic importance and among the most valuable coastal ecosystems. Projected twenty-first century sea-level rise (SLR) poses a threat to these low-lying coastal environments with inhabitants, resources and ecology becoming increasingly vulnerable to flooding. Large spatial differences exist in the parameters shaping the world’s d...

2011
Nicholas L. Balascio Zhaohui Zhang Raymond S. Bradley Bianca Perren Svein Olaf Dahl Jostein Bakke

a r t i c l e i n f o This study takes a comprehensive approach to characterizing the isolation sequence of Heimerdalsvatnet, a coastal lake in the Lofoten Islands, northern Norway. We use established methods and explore new techniques to assess changes in marine influence. Bathymetric and sub-bottom profiles were acquired to examine basin-wide sedimentation and a 5.8 m sediment core spanning t...

2001
Elisabetta Vignati Gerrit de Leeuw Ruwim Berkowicz

The Coastal Aerosol Transport (CAT) model was developed to study the evolution of aerosol particle size distributions and composition in the coastal environment. The model simulates such processes as particle production at the sea surface, mixing of particles through the boundary layer by turbulent diffusion, gravitational settling, and dry deposition. The model is initialized at the shoreline ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده زبانهای خارجی 1392

abstract since heubners (1985) pioneering study, there have been many studies on (mis) use/ non-use of articles by l2 learners from article-less and article languages. the present study investigated how persian l2 learners of english produce and interpret english definite descriptions and demonstrative descriptions. it was assumed that definite and demonstrative descriptions share the same cen...

Journal: :iranian journal of ichthyology 0
hossein mostafavi department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. rafaela schinegger department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. kurt pinter department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. helga kremser department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. majid bakhtiyari department of bio-diversity and ecosystem management, environmental sciences research institute, shahid beheshti university, tehran, iran. asghar abdoli department of biodiversity and ecosystem management, sciences research institute, shahid beheshti university. tehran, iran.

various human pressures are affecting the aquatic biocoenosis in running waters of iran - similar to many other areas of the world. overall 190 sites, 88 at salmonid (44 reference/impacted respectively) and 102 at cyprinid (50 reference/52 impacted) streams of the southern caspian sea basin were investigated in terms of human pressures present and the related impact on fish assemblages. in tota...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

2011
Ranjan Ramasamy Sinnathamby N Surendran

BACKGROUND Vector-borne infectious diseases are a significant cause of human and animal mortality and morbidity. Modeling studies predict that changes in climate that accompany global warming will alter the transmission risk of many vector-borne infectious diseases in different parts of the world. Global warming will also raise sea levels, which will lead to an increase in saline and brackish w...

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