NHAP = National High-Altitude Aerial Photography: 1980 - 1989 -

Metadata Updated: November 12, 2020

The National High Altitude Photography (NHAP) program, which was operated from 1980-1989, was coordinated by the U.S. Geological Survey as an interagency project to eliminate duplicate photography in various Government programs. The aim of the program was to cover the 48 conterminous states over a 5-year span. In the NHAP program, black-and-white and color-infrared aerial photographs were obtained on 9-inch film from an altitude of 40,000 feet above mean terrain elevation and are centered over USGS 7.5-minute quadrangles. The color-infrared photographs are at a scale of 1:58,000 (1 inch equals about .9 miles), and the black-and-white photographs are at a scale of 1:80,000 (1 inch equals about 1.26 miles). All NHAP flights were flown in a North to South direction. These photographs are offered as digital images.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date June 25, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) June 25, 2020 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Date June 25, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) June 25, 2020 (publication)
Responsible Party U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center (Point of Contact)
Contact Email
Guid
Access Constraints Use Constraints: There is no guarantee of warranty concerning the accuracy of these data. Users should not use these data for critical applications without a full awareness of their limitations. Temporal changes may have occurred since the data were collected and some parts of these data may no longer represent actual surface conditions. There are no restrictions regarding the use of data distributed by the U.S. Geological Survey (USGS), unless expressly identified prior to or at the time of receipt. Please refer to https://www.usgs.gov/centers/eros/science/usgs-eros-archive-data-use-and-citation for more information on data citation., Access Constraints: Downloading and using these data signifies that the user comprehends and will comply with the USGS Privacy Policy. Reading and understanding all portions of the metadata will protect the interests of both the user and the USGS. Please refer to https://www.usgs.gov/privacy.html.
Bbox East Long -66.8
Bbox North Lat 49.6
Bbox South Lat 23.9
Bbox West Long -124.8
Coupled Resource
Frequency Of Update asNeeded
Licence No warranty expressed or implied is made by the USGS regarding the use of this data, nor does the act of distribution constitute any such warranty.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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