NHAP_Not provided

National High Altitude Photography

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  • Abstract
    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 of the USA 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).
  • Purpose
    The NHAP program was designed to reduce Federal costs, eliminate duplication of effort, and to obtain complete, uniform coverage of the conterminous 48 states of the USA over a 5-year cycle.

Data Identification Fields:

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    Processing Level

    Not provided

    Quality
    Collection Progress

    In Work

    Use Constraints
    There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.
    Access Constraints

    None

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • LAND SURFACE
    • SURFACE RADIATIVE PROPERTIES
    • ALBEDO
    • EARTH SCIENCE
    • LAND SURFACE
    • TOPOGRAPHY
    • TERRAIN ELEVATION
    • TOPOGRAPHICAL RELIEF MAPS
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • VISIBLE WAVELENGTHS
    • VISIBLE IMAGERY
Other Descriptive Keywords
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Ancillary Keywords
  • imagery
  • EROS
  • PHOTOGRAPHY
  • NHAP
  • USGS/EROS
  • PHOTOGRAPHS
ISO Topic Categories
  • IMAGERY/BASE MAPS/EARTH COVER
Additional Attributes
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    STRING
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    Resolution Range Begin Range End Unit of Measure Accuracy

  • metadata.extraction_date
    STRING
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  • metadata.keyword_version
    FLOAT
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    Resolution Range Begin Range End Unit of Measure Accuracy

Acquisition Information Fields:

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Platforms
  • Not provided
    Instruments

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN NO_SPATIAL
Location Keywords
    • CONTINENT
    • NORTH AMERICA
    • UNITED STATES OF AMERICA
    • CONTINENT
    • NORTH AMERICA

Data Centers

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  • USGS/EROS
    ORIGINATOR

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  • DOI/USGS/EROS
    Multiple Roles

    ARCHIVER

    DISTRIBUTOR

    Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior

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    This data center does not have any contact mechanisms listed.

Data Contacts

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  • Multiple Roles

    Metadata Author

    Technical Contact

    EROS CENTER

    LTA Customer Services
    U.S. Geological Survey
    EROS Center
    Sioux Falls, SD 57198-0001

    • Email
    • 605-594-6589
    • 605-594-6151, 800-252-4547
  • Data Center Contact
    EROS CENTER

    DOI/USGS/EROS

    LTA Customer Services
    U.S. Geological Survey
    EROS Center
    Sioux Falls, SD 57198-0001

    • Email
    • 605-594-6589
    • 605-594-6151, 800-252-4547

Collection Citations Fields:

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    Collection Citations
    • National High Altitude Photography

      Created by:

      Published by: U.S. Geological Survey

      Released: