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Imagery - PEMA [Pennsylvania--Montgomery County] {2018}

Montgomery County · 2018 Full Details

Full Details

Title
Imagery - PEMA [Pennsylvania--Montgomery County] {2018}
Description
This orthoimagery data set includes 0.5-foot (15-centimeter) 8-bit 4-band (RGBN) digital orthoimage tiles in GeoTIFF, Mr. SID, and JPEG 2000(JP2) format. The PEMA 2018 0.5-foot Orthoimagery called for the planning, acquisition, processing, and derivative products of imagery data to be collected at a ground sample distance (GSD) of 0.5-foot (15 centimeters). Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Ortho Specification, Version 1.0. The data were developed based on a horizontal projection/datum of NAD83 (2011) State Plane Pennsylvania, US Survey Feet. Orthoimagery data was delivered as 298 individual 0.5-foot (15-centimeter) 1" = 100' GeoTIFF (uncompressed) 10,000-foot x 10,000-foot (3,048-meter x 3,048-meter) tiles. Aerial photography was captured during the spring of 2018, while no snow was on the ground and rivers were at or below normal levels. In order to post process the imagery data to meet task order specifications and meet horizontal accuracy guidelines, Quantum Spatial, Inc. utilized a total of 496 QC points throughout the Commonwealth of Pennsylvania to assess the horizontal accuracy of the data. These checkpoints were not used to calibrate or post process the data.
Creator
Montgomery County
Temporal Coverage
2018
Date Issued
2020-07-15
Access Rights
Public
Format
File
Language
English
Date Added
August 28, 2025

Location

Links

Cite and Reference

  • Citation
    Montgomery County (2020). Imagery - PEMA [Pennsylvania--Montgomery County] {2018}. . https://data-montcopa.opendata.arcgis.com/maps/montcopa::imagery-2018-pema (web service)
  • BTAA Geoportal Link

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