Datasets > Delaware Valley Regional Planning Commission > 2005-2009

DVRPC 2005 Digital Orthoimagery - County Mosaics Southeast, [Pennsylvania] {2005}

Delaware Valley Regional Planning Commission · 2005 Full Details

Full Details

Title
DVRPC 2005 Digital Orthoimagery - County Mosaics Southeast, [Pennsylvania] {2005}
Description
Mosaic - 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. Counties include: Bucks, Chester, Delaware, Montgomery, and Philadelphia.
Creator
Delaware Valley Regional Planning Commission
Date Issued
2005
Access Rights
Public
Format
File
Language
English
Date Added
February 22, 2023

Location

Links

Cite and Reference

  • Citation
    Delaware Valley Regional Planning Commission (2005). DVRPC 2005 Digital Orthoimagery - County Mosaics Southeast, [Pennsylvania] {2005}. . https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=1149 (dataset)
  • BTAA Geoportal Link

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