نتایج جستجو برای: shoreline changes
تعداد نتایج: 874088 فیلتر نتایج به سال:
Acknowledgments T he Nearshore Science Team (NST) of the Puget Sound Nearshore Project recognized in early discussions the need for a geomorphic framework to guide shoreline restoration planning. These individuals clarified the rationale and the purpose for this document and provided valuable comments on early drafts of the report. This project also benefitted greatly from the input of Washingt...
The British Petroleum Deepwater Horizon Oil Spill in the Gulf of Mexico was the biggest oil spill in US history. To assess the impact of the oil spill on the saltmarsh plant community, we examined Advanced Visible Infrared Imaging Spectrometer (AVIRIS) data flown over Barataria Bay, Louisiana in September 2010 and August 2011. Oil contamination was mapped using oil absorption features in pixel ...
This paper evaluates the accuracy of shoreline positions obtained from the infrared (IR) bands of Landsat 7, Landsat 8, and Sentinel-2 imagery on natural beaches. A workflow for sub-pixel shoreline extraction, already tested on seawalls, is used. The present work analyzes the behavior of that workflow and resultant shorelines on a micro-tidal (<20 cm) sandy beach and makes a comparison with oth...
ROONEY, J.J.B., and FLETCHER, C.H. III, 2004. Shoreline change and Pacific climatic oscillations in Kihei, Maui, Hawaii. Journal of Coastal Research, 21(0), 000–000. West Palm Beach (Florida), ISSN 0749-0208. Increasing demands on coastal areas require enhanced understanding of coastal erosion hazards. Here we analyze a 5-km segment of the Kihei coastline (Maui, Hawaii) centered on an area of c...
1-Introduction The location of shorelines and the state of their changes in the past, present and over time are important for scientists, engineers and managers. For example, analyzing shoreline information for coastal protection design, policy development, updating and reviewing numerical models, assessing sea level rise, developing risk areas for coastal development, achieving the definition...
Synthetic Aperture Radar (SAR) images are being used more extensively than ever before for geoscience applications in the moist tropics. In this investigation, a RADARSAT1-1 C-HH SAR image acquired in 1998 was used for coastal mapping and land-cover assessment in the Bragança area, in the northern Brazil. The airborne GEMS 1000 X-HH radar image acquired in 1972 during the RADAM Project was also...
Background Burnett County, located in northwest Wisconsin within a few hours of the Twin-Cities metropolitan region, is home to over 500 lakes (see Figure 1). Heavy development pressures and a strong local identity with the lakes have fueled interest in protecting their health and aesthetic appeal. The county enjoys a long history of partnerships for lake management that includes county agencie...
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