Sedimentary evidence of hurricane strikes in western Long Island, New York

Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry Geophysics Geosystems 8 (2007): Q06011, doi:10.1029/2006GC001463.Evidence of historical landfalling hurricanes and prehistoric storms has been recovered from backbarrier environments in the New York City area. Overwash deposits correlate with landfalls of the most intense documented hurricanes in the area, including the hurricanes of 1893, 1821, 1788, and 1693 A.D. There is little evidence of intense hurricane landfalls in the region for several hundred years prior to the late 17th century A.D. The apparent increase in intense hurricane landfalls around 300 years ago occurs during the latter half of the Little Ice Age, a time of lower tropical sea surface temperatures. Multiple washovers laid down between ~2200 and 900 cal yr B.P. suggest an interval of frequent intense hurricane landfalls in the region. Our results provide preliminary evidence that fluctuations in intense hurricane landfall in the northeastern United States were roughly synchronous with hurricane landfall fluctuations observed for the Caribbean and Gulf Coast, suggesting North Atlantic–wide changes in hurricane activity.Grants from the National Science Foundation (EAR 0519118), Risk Prediction Initiative at the Bermuda Biological Station for Research, and the Coastal Ocean Institute of Woods Hole Oceanographic Institution supported this research

The Prime Number Theorem

This paper explores the distribution of primes through the study of arithmetical functions defined by Chebyshev. The relation between the number of primes less than or equal to x is related to a summation,\ud and a proof of Chebyshev's theorem is provided. This culminates in statement of the Prime Number Theorem and a brief discussion on\ud impact the Prime Number Theorem has had

What Lies Beneath? Revealing Coastal Processes Through Mapping

Coastal areas are changing as a result of natural and human activities, and these dynamics create risks for citizens and communities. Science is needed to map and measure coasts and oceans, and many new tools exist to enhance our knowledge. In this chapter, some of the methods being employed around the world are discussed including GIS, multibeam sonar and aerial imaging. Stories from past and recent research are used to explain the approaches as well as their scientific and societal value. Weaving together experiences from ancient worlds, on distant shores and with crocodiles, I explain how and why we learn about what lies beneath the waves and along our shores

Mangrove forests in a peri-urban setting: The case of Mombasa (Kenya)

SCOPUS: ar.jinfo:eu-repo/semantics/publishe