نتایج جستجو برای: coastal environment
تعداد نتایج: 567515 فیلتر نتایج به سال:
Remote sensors are widely used in coastal morphodynamic research and the users are often confronted with abundant data that sensors generate. These data, if properly explored, can be used to study and manage many coastal features and processes that are not well understood. As an example, we present the exploration of rip currents. Coastal datasets are presently examined using animated image seq...
Communities along the USA coast are highly vulnerable to coastal storms. Trends in population growth, climatic events and land use are likely to exacerbate future damages. Coastal management entities are faced with decisions about how to manage resources in a manner that improves environmental quality and provides the maximum benefit for coastal populations. This is particularly true along the ...
At the international level, there is an increasing awareness that many of the environmental problems that our civilisation has brought upon itself are either focused on the shorelines or most obvious in their vicinity. Fertiliser run-off from agricultural lands produces eutrophication of coastal waters, marine litter washes up on Norway’s otherwise flawless beaches, and disoriented whales as we...
Acid sulfate soils in Western Australia commonly occur in coastal regions. One of the greatest threats to coastal environment is the disturbance of acid sulfate soils due to urban development which can lead to widespread acidification of lands and streams and subsequent economic losses onsite or in adjacent areas. Surface sampling from different landforms of the study area and analytical result...
Habitat quality indicators for the marine coastal environment are in great demand following recent developments in the Water Framework Directive (WFD) which establishes that the ecological status of the water has to be determined by the condition of the biological elements including macrobenthos. Each member State should identify useful monitoring procedures for its water bodies and take into a...
Distribution and behavior of many trace elements in the aquatic environment has been well characterized, but little is known about silver (Ag) concentrations in coastal waters, even though this element ranks among the most toxic to marine invertebrates (Calabrese et al., 1977 ; Fisher and Hook, 1997 ; Webb and Wood, 1998). Studies conducted by Flegal et al. (1995), River-Duarte et al. (1999), a...
Oceanography is the investigation of features found in coastal water. It extends from shallow estuaries to deep oceans, everywhere sea water can be found. This involves a broad scope of issues, beginning with the physical aspects of coastal dynamics and coastal sedimentation to the seafloor’s geology and ecosystems comprised by marine life. Consequently, the study of the ocean is always a chall...
This paper presents the results of an investigation into the use of a waveform lidar system from a ground based vehicle. Data was collected using a Riegl LMS Q560 laser scanner mounted on the roof of a Landrover driven along a 7 km stretch of coastline at Filey Bay, North Yorkshire, UK. An IMU and differential GPS unit, part of IGI’s AeroControl system, were used to provide measurement of senso...
During the breeding season seabirds are constrained to coastal areas and are restricted in their movements, spending much of their time in near-shore waters either loafing or foraging. However, in using these areas they may be threatened by anthropogenic activities such as fishing, watersports and coastal developments including marine renewable energy installations. Although many studies descri...
Marine fisheries and the ecosystems that sustain them are increasingly beset by environmental deterioration, and the problem is particularly acute in coastal zones where human populations are increasing. In the best of circumstances, fishery managers are faced with the multiple, often conflicting, demands of resource users, politicians, and scientists when considering strategies for resource ma...
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