Document Type

Report

Department/Program

Virginia Institute of Marine Science

VIMS Department/Program

Center for Coastal Resources Management (CCRM)

Publication Date

3-2008

Abstract

This shoreline inventory is developed as a tool for assessing conditions along primary shoreline in three watersheds that discharge into Delaware Bay. Field data were collected between September 11-13, 2007. Conditions are reported for three zones within the immediate riparian river area: riparian land use, bank and buffers, and the shoreline. A series of maps, tabular data, and GIS files are posted to a website and available electronically to serve as a resource to all managers and planners within the three watersheds. The survey provides a baseline to which future conditions can be compared and tracked through time.

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Description

GIS files below.

Data collection is performed in the field from a small, shoal draft vessel, navigating at slow speeds parallel to the shoreline. To the extent possible, surveys take place on a rising tide, allowing the boat to be as close to shore as possible.

Data is logged using the handheld Trimble GeoExplorer III, GeoExplorer XT, or GeoExplorer XH GPS unit. GeoExplorers are accurate to within 4 inches of true position with extended observations and differential correction. Without post processing, these units can achieve accuracies around 3 ft (1 meter). Both static and kinematic data collection is performed. Land use, bank condition, and linear shoreline structures are collected using this technique.

Static surveys pin-point fixed locations that occur at very short intervals. Static surveys log 6 GPS observations at a rate of one observation per second at the fixed station. The GPS receiver uses an averaging technique to compute one position based on the 6 static observations. Static surveys are used to position point features like piers, boat ramps, and boathouses.

The Trimble GPS receivers being used include a function that allows a user to pre-program the complete set of features surveyed in a “data dictionary. The survey, therefore, is a complete set of geographically referenced shoreline data.

This shoreline inventory is developed as a tool for assessing conditions along primary shoreline in three watersheds that discharge into Delaware Bay. Field data were collected between September 11-13, 2007. Conditions are reported for three zones within the immediate riparian river area: riparian land use, bank and buffers, and the shoreline. A series of maps, tabular data, and GIS files are posted to a website and available electronically to serve as a resource to all managers and planners within the three watersheds. The survey provides a baseline to which future conditions can be compared and tracked through time.

Files | Description

GIS files below.

  • appo_astru: GIS Data – structures that are typically built for access and recreational activities at the shore.
  • appo_sstru: GIS Data – information pertaining to structures for shoreline defense.
  • appo_lubc: GIS Data -features related to land use in the riparian zone, and conditions at the bank.
  • appo_metadata/appo_astru: Metadata
  • appo_metadata/appo_lubc: Metadata
  • Appo_metadata/appo_sstru: Metadata
  • bb_astru: GIS Data - structures that are typically built for access and recreational activities at the shore
  • bb_sstru: GIS Data - information pertaining to structures for shoreline defense
  • bb_lubc: GIS Data - features related to land use in the riparian zone, and conditions at the bank
  • bb_metadata/bb_astru: metadata
  • bb_metadata/bb_sstru: metadata
  • bb_metadata/bb_lubc: metadata
  • stjo_astru: GIS Data – structures that are typically built for access and recreational activities at the shore
  • stjo_sstru: GIS Data - information pertaining to structures for shoreline defense
  • stjo_lubc: GIS Data - features related to land use in the riparian zone, and conditions at the bank
  • stjo_metadata/stjo_astru: Metadata
  • stjo_metadata/stjo_sstru: Metadata
  • sstjo_metadata/stjo_lubc: Metadata

DOI

https://doi.org/10.25773/2X1X-G586

Keywords

Delaware, shoreline inventory, wetland assessment, National Estuarine Research Reserve

Publication Statement

Disclaimer for Digital Shoreline Situation Report (SSR) Coverages

The Center for Coastal Resources Management (CCRM) 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 CCRM, the Virginia Institute of Marine Science (VIMS), nor the disclosed funding agencies will 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. CCRM, VIMS, and disclosed collaborative agency 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.

Use of these data in map publications, either digital or hardcopy, requires proper citation.

  • CCRM is not responsible for misuse of these data.
  • CCRM does not oversee or assume responsibility for alterations to this product by users.
  • CCRM may not address specific questions from users who received the data through another party.
  • Distribution of these data is not restricted. CCRM, however, recommends metadatafile(s) always remain with the data.
  • CCRM encourages noticeable errors be reported to CCRM contact person identified in the metadata file

Funding

In 2007, the Delaware Coastal Zone Management Program provided funds to target inland watersheds associated with three National Estuarine Research Reserve sites. Phase 2 of the Shoreline Inventory for Delaware Coastal Bays was funded, in part, through a grant from the Delaware Coastal Programs with funding from the Office of Ocean and Coastal Resource Management, National Oceanic and Atmospheric Administration under award number NA06NOS4190243.

NERR_shapefiles.zip (427 kB)
GIS shapefiles

NERR_metadata.zip (61 kB)
Metadata files

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