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Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
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Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
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Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
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Description: Lehigh Valley Planning Commission's orthoimagery tile index. This index is derived from the PAMAP 10,000 feet x 10,000 feet index for the southern State Plane zone of Pennsylvania.Each polygon is attributed with the source of the 2015 imagery for that particular tile; either Quantum Spatial, US Army Corps of Engineers (USACE) and AXIS Geospatial, or a combination thereof.
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Description: This index corresponds to the coverage of DVRPC's PA State Plane (South Zone) orthoimagery in the 5-county, Pennsylvania portion of the DVRPC region.Each polygon is attributed with the source of the 2015 imagery for that particular tile; either Quantum Spatial, US Army Corps of Engineers (USACE) and AXIS Geospatial, or a combination thereof.
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Description: York County Planning Commission's orthoimagery tile index. This index is derived from the PAMAP 10,000 feet x 10,000 feet index for the southern State Plane zone of Pennsylvania.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Copyright Text: Recipients of DVRPC digital files will credit DVRPC as the source of the data when producing maps, publications, reports, or other documents that utilize DVRPC files.
Description: This index represents the coverage of the scans of DVRPC's non-orthorectified, mylar, aerial photo enlargements for the year 1959.This layer includes a "STATUS..." attribute field that indicates what scans are missing.Prior to the year 2000, DVRPC’s aerial imagery consisted of mylar aerial photo enlargements or “atlas sheets”. These atlas sheets were produced from 9x9" diapositives. Over 9,500 sheets constitute the coverage of our older or “historical”aerial imagery from the years 1959 and 1965 through 1995 in five year increments. In order to increase the efficiency of using the historical aerial imagery, the sheets were scanned into TIFF (Tagged Image File Format) files. Each TIFF file ranges between 35-40MB in size.Unlike DVRPC’s more recent aerial imagery (2000 and later), the historical aerials are not “orthorectified” or “orthocorrected”. In other words, they are simply aerial images with no spatial reference or uniform scale. Through the process of georeferencing, the scanned images can be assigned a spatial reference which will enable them to be used more readily in a GIS environment. That said, georeferencing is not orthorectifying or orthocorrecting. What it does allow is for the scan to be displayed relative to other spatially referenced GIS layers. A georeferenced scan does not have the properties of an actual orthoimage. Whereas an orthoimage can be used for making accurate measurements, a georeferenced image cannot, as it does not have the spatial accuracy and uniform scale of an orthoimage.
Description: This index represents the coverage of the scans of DVRPC's non-orthorectified, mylar, aerial photo enlargements for the years 1965, 1970, 1975, 1980, 1985, 1990, and 1995.This layer includes a "STATUS..." attribute field for each year of imagery that indicates what scans are missing. Please note that the STATUS fields are only a partial inventory of missing scans.Prior to the year 2000, DVRPC’s aerial imagery consisted of mylar aerial photo enlargements or “atlas sheets”. These atlas sheets were produced from 9x9" diapositives. Over 9,500 sheets constitute the coverage of our older or “historical”aerial imagery from the years 1959 and 1965 through 1995 in five year increments. In order to increase the efficiency of using the historical aerial imagery, the sheets were scanned into TIFF (Tagged Image File Format) files. Each TIFF file ranges between 35-40MB in size.Unlike DVRPC’s more recent aerial imagery (2000 and later), the historical aerials are not “orthorectified” or “orthocorrected”. In other words, they are simply aerial images with no spatial reference or uniform scale. Through the process of georeferencing, the scanned images can be assigned a spatial reference which will enable them to be used more readily in a GIS environment. That said, georeferencing is not orthorectifying or orthocorrecting. What it does allow is for the scan to be displayed relative to other spatially referenced GIS layers. A georeferenced scan does not have the properties of an actual orthoimage. Whereas an orthoimage can be used for making accurate measurements, a georeferenced image cannot, as it does not have the spatial accuracy and uniform scale of an orthoimage.
Description: Penn Pilot, a project sponsored by the Pennsylvania Geological Survey, is an online library of digital historical aerial photography for the Commonwealth of Pennsylvania. The original photos are black-and-white 9” x 9” and 9” x 7” prints with a scale of 1:20,000. The vegetation condition when flown was “leaf-on.” In 2018, Donald W. Hamer Center for Maps & Geospatial Information at The Pennsylvania State University obtained the photographs from 1947 to 1952. Digital images were scanned at 800 dpi gray-scale using an EPSON Expression 10000 XL scanner. An additional 90 photos were retrieved from the National Archives and Records Administration and scanned by the Historical Information Gatherers from negatives using a Microtek 1000XL scanner. The 1947 to 1952 collection's 26320 images contain overlapping coverage for 65 counties in Pennsylvania, not including Philadelphia and Delaware counties.
Copyright Text: United States Department of Agriculture Farm Service Agency: FSA Aerial Photography Field Office (APFO)