Recent (1988-1995) Maryland Shorelines with Erosion Rate Attributes
Entry ID: md_SLM

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Summary
Abstract: In 2000, the Maryland Geological Survey (MGS) was awarded a Coastal Zone Management grant to complete the acquisition of a recent (ca. 1990) digital shoreline for the coastal regions of Maryland -- the Chesapeake Bay, its tributaries, the coastal bays, and the Atlantic coast. MGS contracted the services of EarthData International, Inc. (EDI), currently of Frederick, Md., to extract shorelines ... View entire text

Purpose: This data set complements a set of historical digital shorelines for the Maryland reaches of the Chesapeake Bay, the coastal bays, and the Atlantic coast (See Section 1.14). That data set spans the period 1841-1977. The two data sets are being used to update a series of Shoreline Changes maps and to determine coastal land loss during the last half of the 20th century. Other State agencies will be able to use this data to analyze and update land loss information, analyze historical erosion trends, and assess the extent and magnitude of shore erosion on a regional geographic basis. In particular, the availability of up-to-date shoreline change data will support the design and implementation of shore protection projects and the development of a comprehensive shore erosion control plan.
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Description: Access data sets for the Recent (1988-1995) Maryland Shorelines with Erosion Rate Attributes.
Geographic Coverage
Spatial coordinates   
  N: 39.62   S: 37.88   E: -75.0   W: -77.37

Data Set Citation
Dataset Originator/Creator: Maryland Department of Natural Resources, Chesapeake Bay & Watershed Programs, Resource Assessment Service, Maryland Geological Survey (MGS)
Dataset Title: Recent (1988-1995) Maryland Shorelines with Erosion Rate Attributes
Dataset Release Date: 2003
Dataset Release Place: Baltimore, Maryland, USA
Dataset Publisher: Maryland Department of Natural Resources, Chesapeake Bay & Watershed Programs, Resource Assessment Service, Maryland Geological Survey (MGS)
Version: 1
Data Presentation Form: vector digital data
Other Citation Details: CD-ROM CoErosionRates
Online Resource: http://www.mgs.md.gov
Temporal Coverage
Start Date: 1988-04-17
Stop Date: 1995-03-25
ISO Topic Category
Platform
AIRCRAFT Ancillary Description
Quality Attribute Accuracy: Accuracy of the shoreline type attributes was not assessed.

CGIS checked the accuracy of the erosion rate classification by displaying both the shore-normal transects and the shoreline, color-coded, respectively, by erosion rate (ft/yr) and erosion rate category (high, moderate, low, etc.). If the color of the transects matched the color of the associated ... View entire text
Access Constraints None
Use Constraints The DOQQs from which the shorelines were interpreted meet National Map Accuracy Standards at the production scale of 1:12,000 using the American Society for Photogrammetry and Remote Sensing (ASPRS) method. Consider the scale in displaying and using the vectors. Displaying the vectors at scales larger than those of the source documents is considered bad practice.The aerial photography from which the DOQQs were developed was not tide-coordinated. Therefore, shorelines in this data set do not represent a consistent vertical datum.
Data Set Progress
COMPLETE
Originating Center
Data Center
Geological Survey, Maryland Supplemental Info
Data Center URL: http://www.mgs.md.gov

Data Center Personnel
Name: BOB CONKWRIGHT
Email: bconkwright at mgs.md.gov
Contact Address:
2300 St. Paul Street
City: Baltimore
Province or State: MD
Postal Code: 21218
Country: USA
Distribution
Distribution Media: Online
Fees: No fees
Personnel
Role: TECHNICAL CONTACT
Phone: 410-554-5519
Fax: 410-554-5502
Email: lhennessee at mgs.dnr.md.gov
Contact Address:
2300 St. Paul Street
City: Baltimore
Province or State: MD
Postal Code: 21218
Country: USA
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Publications/References
Conkwright, R.D. (compiler), 1975, Historical Shorelines Atlas: Maryland Geological Survey, Baltimore, Md., 4 volumes.

Cowardin, L.M., Carter V., Golet, F., and LaRoe, E., 1979, Classification of wetlands and deep water habitats of the United States: U.S. Fish and Wildlife Service, 103 pp.

Danforth, W.W., and Thieler, E.R., 1992, Digital Shoreline Analysis System (DSAS) User’s Guide, Version ... View entire text
Creation and Review Dates
DIF Creation Date: 2011-12-27
Last DIF Revision Date: 2012-01-03
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