Bronze level automatically awarded US beta

This data has achieved Bronze level on 25 October 2015 which means this data makes a great start at the basics of publishing open data.

Maui Photomosaic 2000 (301e-0603) - Orthorectification and Mosaicing of Color Aerial Photography Main Eight Hawaiian Islands

Description

Habitat maps of the main Hawaiian Islands were created by visual interpretation of aerial photos and hyperspectral imagery using the Habitat Digitizer extension. Aerial photographs are valuable tools for natural resource managers and researchers since they provide an excellent record of the location and extent of habitats. However, spatial distortions in aerial photographs due to such factors as camera angle, lens characteristics, and relief displacement must be accounted for during analysis to prevent incorrect measurements of area, distance, and other spatial parameters. These distortions of scale within an image can be removed through orthorectification. During orthorectification, digital scans of aerial photos are subjected to algorithms that eliminate each source of spatial distortion. The result is a georeferenced digital mosaic of several photographs with uniform scale throughout the mosaic. Features near land are generally georeferenced with greater accuracy while the accuracy of features away from land is generally not as good. Where no land is in the original photographic frame only kinematic GPS locations and image tie points were used to georeference the images. After an orthorectified mosaic is created, photointerpreters can accurately and reliably delineate boundaries of features in the imagery as they appear on the computer monitor using a software interface such as the Habitat Digitizer.

General Information

Legal Information

This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

  • The rights statement is at

    http://catalog.data.gov/dataset/maui-photomosaic-2000-301e-0603-orthorectification-and-mosaicing-of-color-aerial-photography-m Do you think this data is incorrect? Let us know

  • Outside the US, this data is available under

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  • There are

    yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

  • The content is available under

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  • This data contains

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Practical Information

  • The data appears in this collection

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  • This data changes

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Technical Information

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  • Find out how to contact someone about this data at

    http://catalog.data.gov/dataset/maui-photomosaic-2000-301e-0603-orthorectification-and-mosaicing-of-color-aerial-photography-m Do you think this data is incorrect? Let us know

  • Find out how to suggest improvements to publication at

    http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/maui-photomosaic-2000-301e-0603-orthorectification-and-mosaicing-of-color-aerial-photography-m Do you think this data is incorrect? Let us know