Datasets, Web services > Vector data > Pennsylvania--Montgomery County > 2000-2004

DVRPC Imagery [Pennsylvania--Montgomery County] {2000}

Montgomery County · 2000 Full Details

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Title
DVRPC Imagery [Pennsylvania--Montgomery County] {2000}
Description
An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. This project consists of the creation of 3-band, 24 bit color digital orthophoto tiles for the 5-county, Pennsylvania portion DVRPC?s region utilizing a Leica ADS40 digital imaging system. The tiles were delivered in both GeoTIFF and MrSID MG3 formats. A GeoTIFF is a TIFF file which has geographic (or cartographic) data embedded as tags within the TIFF file. The geographic data can then be used to position the image in the correct location and geometry within a geographic information system (GIS) display. MrSID (Multi-resolution Seamless Image Database) is a proprietary, wavelet-based, image compression file format (*.sid) developed and patented by LizardTech, Inc. A 20:1 compression ratio was used for the MrSIDs. The complete data set contains 1,540 full ortho tiles in Pennsylvania State Plane South coordinate system, NAD83. The individual tiles measure 5,055' x 8,745' at a 1.0' pixel size. There is no image overlap between adjacent tiles.
Creator
Montgomery County
Temporal Coverage
2000
Date Issued
2019-09-12
Rights
Montgomery County provides this data as a free and open resource.While every reasonable effort is made to ensure the accuracy and completeness of the data, Montgomery County makes no representations about the suitability of this data for any purpose. All data is provided "as is" without warranties of any kind, either express or implied, and it should not be construed or used as a legal description.
Access Rights
Public
Format
Shapefile
Language
English
Date Added
March 08, 2023

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Cite and Reference

  • Citation
    Montgomery County (2019). DVRPC Imagery [Pennsylvania--Montgomery County] {2000}. . https://data-montcopa.opendata.arcgis.com/maps/montcopa::dvrpc-imagery-2000 (dataset)
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