2000's NAPP and Other Monochrome Orthoimagery

© 2024 Boyd Ostroff

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Originally published: December 31, 2023

Most recent update: December 18, 2024

Resolution: 4 feet (1.2 meters)

Map Tiles: 4,651,000

Size: 34.2 gb

Data Sources

Description

This map features monochrome aerial imagery of the US Mid-Atlantic region, captured between 1997-2004. The imagery comes from a variety of sources in the individual states as well as the USGS National Aerial Photography Program (NAPP). This is a work in progress and coverage will be expanded to a larger area in the future.

Approximate imagery dates are shown below, however there are some relatively small gaps in coverage that were filled with imagery from other periods. The Pennsylvania 2000 NAPP imagery only covered the Eastern part of the state, NAIP 2004 aerials were used in the Western and Southern Pennsylvania area. There were two small areas in Central/Northern New Jersey with no coverage in the 2002 aerials, these were filled with 2006 USDA/NAIP imagery. There are other small gaps in other states where supplemental imagery was used.

In selecting the imagery from each state, the goal was to remain as close as possible to the year 2000.

The source data consists of a mixture of monochrome, color and infrared imagery. This map has been processed as 8-bit monochrome for consistency and clarity. The resolution of the original imagery varies from as low as 8 feet/pixel (2.4 meters) to as high as 1 foot/pixel (30 centimeters). The final map was processed at a resolution of 4 feet/pixel (1.2 meters), which captures the full detail in most of original imagery.

Note: this map replaces the previous Southern New Jersey 2002 aerials, which had limited coverage.

Credits

The New Jersey 2002 high resolution orthophotography project was planned, initiated, and primarily funded by the NJ Office of Information Technology. Additional state funding was obtained from the NJ Department of Transportation and NJ Transit. The U.S. Geological Survey (USGS) and the Natural Resources Conservation Service (NRCS) also contributed federal funding. Imagery was captured by BAE Systems ADR and subcontractors.

New York State GIS Clearinghouse, New York State Digital Orthoimagery Program (NYSDOP), NYS ITS GIS Program Office, NYS ITS Geospatial Services

NYC Dept of City Planning, New York State Statewide Digital Orthoimagery Program, New York City Department of Information Technology and Telecommunications (DoITT) GIS group

Pennsylvania Spatial Data Access (PASDA), USGS National Aerial Photography Program (NAPP), USDA National Agriculture Imagery Program (NAIP)

Connecticut Department of Environmental Protection, Connecticut Environmental Conditions Online

Maryland Department of Information Technology, Maryland Geographic Information Office, Maryland iMap

State of Delaware, Delaware Department of Technology and Information

Rhode Island Geographic Information System (RIGIS), Rhode Island Department of Transportation, Intermap Corporation, National Grid USA

Massachusetts Bureau of Geographic Information (MassGIS), Massachusetts Department of Transportation, Keystone Aerial Surveys, Inc, Intermap Technologies, Charles H. Sells, Inc

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Although these data have been processed successfully on a computer system at the U.S. Geological Survey no warranty expressed or implied is made by the USGS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.

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