Peter S Rosen

• PhD Marine Science William and Mary
• Northeastern University

Human modifications in response to erosion have altered the natural transport of sediment to and across the coastal zone, thereby potentially exacerbating the impacts of future erosive events. Using a combination of historical shoreline-change mapping, sediment sampling, three-dimensional beach surveys, and hydrodynamic modeling of nearshore and in...

Beaches and inlets throughout the U.S. have been stabilized for purposes of navigation, erosion mitigation, and economic resilience, commonly leading to changes in shoreline dynamics and downdrift erosion/accretion patterns. The developed beach of Plum Island, Massachusetts is highly dynamic, experiencing regular complex erosion / accretion pattern...

The short-term rate of coastal erosion and recession has been observed at island shoreline bluffs near waterways among Boston Harbor, Massachusetts, USA. This erosion has been hypothesized partially related to waves from high-speed wakes. Recording the physical erosion events during extreme high waves is significant to evaluate the dynamics of bluf...

Duxbury Beach is located ~50 km south of Boston Har-bor along the South Shore of Massachusetts Bay. The Duxbury barrier is part of a barrier spit system that fronts the Plymouth reentrant consisting of interconnected Duxbury, Kingston, and Plymouth Bays (Fig. 1). Most of the Duxbury Beach (7.5 of 10 km) is privately owned by the Duxbury Beach Reser...

HUGHES, Z.J., FITZGERALD, D.M. HOWES, N.C. and ROSEN, P.S., 2007. The impact of natural waves and ferry wakes on bluff erosion and beach morphology, Boston Harbor, USA. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 497 - 501. Gold Coast, Australia, ISSN 0749.0208 The Boston Harbor Island National Recre...

A series of partially drowned drumlins forms the backbone of the inner islands within Boston Harbor. The shoreline of these rounded glacial deposits is composed of actively retreating bluffs formed by continual wave attack. Compar-isons of bluffs reveal variability in their height and lateral extent, as well as in the dominant mechanism causing the...

The Boston Harbor Island National Recreation Area is an exceptional natural resource. The islands are recognized as being a unique system (in the U.S.) resulting from the gradual inundation of glacially formed drumlins. The islands are diminishing in size due to rising sea level and coastal erosion. A dramatic example of this land loss is Sheep Isl...

Boulder barricades are the result of grounding of boulder-laden ice rafts in the nearshore zone during spring ice breakup. Wind and tides are the major transport mechanisms. The requisite conditions for the formation of boulder barricades are: a rocky coastal setting, sufficient winter ice, and water-level fluctuations to entrain boulders in ice ra...

Boston Harbor Island shorelines have formed from the submergence and erosion of drumlins,which provided sediment to form connected spits, or tom bolos. The spit alignments are controlled by pre-existing glacial topography in lower energy settings and by dominant wave approach in higher energy settings. When the eroding drumlins are the primary sedi...

The coast of New England is vastly different from the barrier island-coastal plain setting of the Eastern Seaboard south of Long Island, and from the Gulf of Mexico shoreline. Several episodes of glaciation have left New England with a rocky, irregular shoreline that reflects the bedrock fabric of the region and the results of differential weatheri...

Duxbury Beach is a retrograding barrier system located along the South Shore of Massachusetts Bay. The barrier fronts a large embayment consisting of a broad supratidal marsh in the northern sector grading to intertidal flats and open water to the south. Radiocarbon dates indicate that the barrier began forming sometime prior to 3,700 14 C years BP...

Seawall construction methods in Boston, Massachusetts, USA, evolved as materials such as cut stone, concrete and steel became available, as the understanding of geotechnical principles grew, and as the growth of trade required more substantial coastal structures. As a significant number of 19th century stone seawalls are still in use in the Boston...

Seawall construction methods in Boston, Massachusetts, USA, evolved as materials such as cut stone, concrete and steel became available, as the understanding of geotechnical principles grew, and as the growth of trade required more substantial coastal structures. As a significant number of 19th century stone seawalls are still in use in the Boston...

Recent building excavations in the previously landfilled Back Bay section of Boston, Massachusetts, permitted direct observation of the Holocene estuarine stratigraphic sequence. The environmental changes that occurred during this period were a concomitant decreasing submergence rate and an increasing energy level. While the diminishing submergence...

Evidence from the Boston Harbor drumlins indicates that two superposed tills were deposited during glacier advances which were separated by a long nonglacial interval. At Long and Peddocks Islands, argillans and truncated clay-filled fractures, along with discontinuities in clay-mineral composition, define the till contacts. Physical indicators sep...

The coastal morphology and physical settings of Massachusetts are as diverse as any comparable stretch of shoreline in North America. The coastline exhibits marked changes in geological settings and physical processes. The region includes the southernmost limit of glaciation on the East Coast and encompasses the transition between bedrock/till domi...

Abstract Acolian processes and dune forms 'are examined on an eroding '.bar~ier island using sand trap data, a calculated aeolian sediment budget, and field observations of dune characteristics. Results indicate that the highest rate of aeolian transport occurs on the beach. ' Transport parallel to the shoreline greatly exceeds transport onshore an...

The barrier-beach shoreline near Michael River, Labrador, is ice-bound for more than 6 months each year. The contemporary beachface deposits record a complete yearly cycle as follows. The lowermost unit (d), a well-laminated fine-to medium-grained sand, and the overlying unit (a), a graded sequence of well-mixed sand and gravel near the bottom and...

This study defines the susceptibility of differing shoreline types in the Virginia Chesapeake Bay to erosion. There is a high variability of the coastal environments in this area influenced by: (1) the relict Pleistocene high-order dendritic drainage system, resulting in a large diversity of shore orientations; (2) the moderate, but highly variable...

The Makkovik region (550 N. 59°W) has highly indented fiord-type coast that is characteristic of much of northern Labrador. Makkovik Bay. which is 31 km long. is the major embayment. The tidal range is 1.4 m. and maximum significant wave heights seaward of the area are 7.3 m, with 16 second periods. The wave activity is curtailed by ice cover about...

Boulder barricades are elongate rows of boulders that flank the coastline, separated from the shore by a low gradient intertidal zone. Bouldery flats are low gradient areas with randomly-deposited boulders. Both are the result of ice transport and therefore are common features of certain Arctic or sub-Arctic regions. They are formed by the groundin...

Canada Aeolian transport of sand was monitored by using direc-tional sand traps on the beach, foredune, overwash and spit environments of Tabusintac barrier system in northeast NeUJ Bruns~ick. The total volume of sand moved over the system ~as computed from the measured transport rates. A large volume of sand (1720 m3) ~as transported in the alongs...

Beach-face deposits on the strand-plain coast near Michael River, Labrador, contain four distinct units. The basal unit 1 (60 cm thick) is a graded sequence of well-mixed sand and gravel near the bottom and medium-grained laminated sand at the top. It is disconformably overlain by unit 2 (20 cm thick) which consists of fine to medium-grained sand w...

Ice-push ridges and kaimoos are depositionaL features formed by ice on Tabusintac Beach, Ne~ Brunswick. These features are transformed into ridge-and-runneL systems ~hen subjected to wave processes. Kaimoo and ice-push ridges L) protect the beach from storms for a fe~-~ek period, 2) induce deposition of sand at the upper beachface and 3) Leave a La...

Sea-level rise has been quantitatively related to shoreline retreat by the Bruun Rule. This relationship was verified on a field scale along the 336-km shoreline on the Virginia Chesapeake Bay. Relative sea level rise in this area is as high as 5.43 mm/yr, and mean longterm shore retreat is 0.98 m/yr.The model was applied individually to 146 beach...

The Virginia Chesapeake Bay has a large variation (200%) in tidal range (.36m to 1m) over a relatively short (120 km) distance. Analysis of a regional sampling of shoreline morphology and processes demonstrates that decreasing tidal ranges result in increasing long-term erosion rates. This results because larger tidal ranges form a higher elevation...

Cuspate spits and cuspate forelands result from a shoreline being reoriented into dominant wave approaches. Cuspate spits form in elongate lagoons where the basin shape acts as a selective filter on the wave spectrum, so dominant wave approaches are at a high angle to the shoreline. . Coatue Beach, the northern shoreline of Nantucket Harbor, Massac...

Thesis (M.S.)--University of Massachusetts, 1972.

Typescript. Thesis--College of William and Mary. Vita. Includes bibliographical references (leaves 305-312). Photocopy.