Datasets > Pennsylvania > 2005-2009

DVRPC 2005 Orthoimagery for Southeast Pennsylvania - Tile Index [Pennsylvania] {2005}

Pennsylvania Spatial Data Access (PASDA) · 2005 Full Details

Full Details

Title
DVRPC 2005 Orthoimagery for Southeast Pennsylvania - Tile Index [Pennsylvania] {2005}
Description
TILE INDEX - 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 orthophoto tiles for the 5-county, Pennsylvania portion DVRPC?s region utilizing a Leica ADS40 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
Delaware Valley Regional Planning Commission
Publisher
Pennsylvania Spatial Data Access (PASDA)
Temporal Coverage
2005
Date Issued
2005
Access Rights
Public
Format
File
Language
English
Date Added
February 22, 2023
Provenance Statement
The metadata for this resource was last retrieved from PASDA on 2025-11-16.

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Cite and Reference

  • Citation
    Delaware Valley Regional Planning Commission (2005). DVRPC 2005 Orthoimagery for Southeast Pennsylvania - Tile Index [Pennsylvania] {2005}. Pennsylvania Spatial Data Access (PASDA). https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=1111 (dataset)
  • BTAA Geoportal Link

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