Northumberland County, Virginia
Digital Shoreline Situation Report (SSRs) - Description and Disclaimer
The Comprehensive Coastal Inventory Program (CCI) at the Virginia Institute of Marine Science (VIMS) is generating new Shoreline Situation Reports (SSRs) for coastal localities in the Commonwealth of Virginia and the state of Maryland. SSRs were developed by VIMS in the 1970s and have been the foundation for shoreline management planning in Tidewater Virginia ever since. CCI has developed new protocols for collecting, disseminating, and reporting data relevant to shoreline management issues using state of the art mapping and remote sensing techniques. New SSRs are being generated on a county by county basis for Maryland and Virginia.
The data inventory developed for the Shoreline Situation Reports is based on a three-tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. Hand-held GPS units are used to log features observed. The three tiered shoreline assessment approach divides the shorezone into three regions: 1) the immediate riparian zone, evaluated for land use; 2) the bank, evaluated for height, stability, cover and natural protection; and 3) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes. Three GIS coverages are generated. The nthb_lubc coverage are features related to the land use in the riparian zone, and conditions at the bank. The nthb_sstru coverage includes information pertaining to structures for shoreline defense. Finally, nthb_astru identifies structures that are typically built for access and recreational activities at the shore. They can be downloaded from this site through links at the bottom of this page. A metadata file is provided to describe each coverage.
GIS coverages are developed from the GPS datasets collected in the field. The coverages use a shoreline basemap generated in-house from digital orthophotography (DOQQs). The base shoreline is re-coded to reflect features and attributes observed in the field. The metadata file that accompanies the coverages defines attribute accuracy, data development, and any use restrictions that pertain to the data. When downloading data from this site, the users agree to all conditions outlined in the disclaimer below.
This series is published entirely in digital format. Below, a text report includes an outline of methods. Color maps illustrate the conditions recorded. Tables quantify data on a plate by plate basis. These sources can be downloaded with Adobe Acrobat Reader.
These data are a product of the Comprehensive Coastal Inventory Program. The project was funded in part by the Virginia Institute of Marine Science, Comprehensive Coastal Inventory Program, the Virginia Coastal Resources Management Program at the Department of Environmental Quality through Grant Number NA77OZ0204 of the National Oceanic and Atmospheric Administration, Office of Ocean and Coastal Resource Management under the Coastal Zone Management Act of 1972, as amended. The metadata file which accompanies these coverages defines attribute accuracy, data development, and any use restrictions that pertain to the data. When downloading data from this site, the users agree to all conditions outlined in the disclaimer below.
Disclaimer for Digital Shoreline Situation Report (SSR) Coverages
The Comprehensive Coastal Inventory Program (CCI) provides these data with the understanding that it is not guaranteed to be correct or complete, and conclusions drawn from the data set are the sole responsibility of the user.
Every attempt has been made to ensure that these data and the documentation are reliable and accurate. Neither CCI, the Virginia Institute of Marine Science (VIMS), nor Northumberland County assume liability for any damages caused by inaccuracies in the data or documentation, or as a result of failure of the data to perform in a particular manner. CCI and VIMS make no warranty, express or implied, as to the accuracy, completeness, or utility of this information, nor does the fact of distribution constitute a warranty.
Individuals who download these data agree to the following, and understand the limitations defined:
Integration of these data into other products requires proper citation. Proper citation for this dataset is: "Berman, M.R., Berquist, H., Killeen, S., Hershner, C.H., Rudnicky, T., Schatt, D.E., Weiss, D., and H. Woods., 2002. Northumberland County Shoreline Situation Report, Special Report in Applied Marine Science and Ocean Engineering No. 379, Comprehensive Coastal Inventory Program, Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, Virginia, 23062."
Use of these data in map publications, either digital or hardcopy, requires proper citation, and inclusion of the CCI logo.
CCI is not responsible for misuse of these data.
CCI does not oversee or assume responsibility for alterations to this product by users.
CCI may not address specific questions from users who received the data through another party.
Distribution of these data is not restricted. CCI, however, recommends metadata file(s) always remain with the data.
CCI encourages noticeable errors be reported to CCI contact person identified in the metadata file.