Monitoring

Beach Monitoring


The primary purpose of beach monitoring is to use objective measurements obtained from beach and inshore surveys to track changes over time. Approximately 110 profile locations were established and surveyed in 1999, and serve as a baseline condition for assessing beach conditions along Bogue Banks and were also utilized to form the strategy for the locally-funded Bogue Banks Restoration Project (Phases I, II, and III). A profile is simply a shore perpendicular line where elevations are measured to capture the dune, beach, and offshore environments. The monitoring network has been augmented by 10 additional profiles since 1999 for a total of 120 along Bogue Banks. In 2005, Shackleford Banks, which encompasses a portion of the Cape Lookout National Seashore, and Bear Island (Hammock's Beach State Park) was added to the surveying regime to gain a better understanding of coastal dynamics on a regional scale.
Data obtained during monitoring surveys are used to calculate spatial changes of key landscape features over time, such as the toe of the dune, mean high water line, mean sea level, and the mean low water line. The surveys also plays an important role in quantifying the condition of the beach by measuring volumetric rates of erosion and accretion, confirming sediment volumes added by beach nourishment, tracks the movement of sand in the alongshore and cross-shore directions by comparative surveys, and compares beach conditions from one reach to another. Some of the key landscape features and volumetric boundaries are depicted in the figures below.

Graphic - Key landmarks & volumetric parameters for beach monitoring
Graphic - Beach changes with Pine Knoll Shores inset

Monitoring events are conducted on an annual basis, meaning that the profiles established along Bogue Banks, Shackleford Banks, and Bear Island are revisited once every year. Annual reports that summarize the key aspects of the surveys are presented to the Beach Commission on an annual basis. Electronic versions of these annual reports and other relevant monitoring reports are available.

Annual Monitoring Reports

Interim Monitoring Reports


Bogue Inlet Flow Report