Datasets > Pennsylvania > 2015-2019

PEMA Orthoimagery - cached mapservice [Pennsylvania]

Pennsylvania Spatial Data Access (PASDA) · 2018 Full Details

Full Details

Title
PEMA Orthoimagery - cached mapservice [Pennsylvania]
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
Pennsylvania Emergency Management Agency
Publisher
Pennsylvania Spatial Data Access (PASDA)
Date Issued
2018 - 2020
Access Rights
Public
Format
File
Language
English
Date Added
November 16, 2022
Provenance Statement
The metadata for this resource was last retrieved from PASDA on 2025-11-16.

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Cite and Reference

  • Citation
    Pennsylvania Emergency Management Agency (2018 ). PEMA Orthoimagery - cached mapservice [Pennsylvania]. Pennsylvania Spatial Data Access (PASDA). https://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=5158 (dataset)
  • BTAA Geoportal Link

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