2005 Maryland Department of Natural Resources LiDAR: Cecil County

Description

Light Detection and Ranging (LIDAR) is a method of locating objects on the ground using aerial-borne equipment. It is similar to RADAR or SONAR in that the two-way travel time of an energy beam reflected off an object is precisely measured, but this technology uses laser light instead of radio or sound waves. This technology has proven very useful in remote sensing of the earth. It can be used for determining elevations of both the earth's surface and items (natural and man-made) on the surface. Analysis of LIDAR data is used in detailed modeling of the earth's surface for drainage and floodplain studies, determining how a new structure will affect views from various locations, shoreline erosion studies, and other reasons. This data set contains only the bare earth mass points. Bare earth points represent ground features. Features that are above ground, such as buildings, bridges, tree tops, etc, have been eliminated. Mass points may appear to have "holes" with no elevation values in areas where the surface could not be determined, such as very dense forests or urban areas.

General Information

• This data is described at

  http://catalog.data.gov/dataset/2005-maryland-department-of-natural-resources-lidar-cecil-county Do you think this data is incorrect? Let us know

• This data is published by

  National Oceanic and Atmospheric Administration, Department of Commerce Do you think this data is incorrect? Let us know

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