USGS High Resolution Orthoimages for DVRPC-PA

Multi-spectral digital orthophotography was produced at a scale of 1:2400 (1 in = 200 ft) with a 12 inch pixel resolution for the DVRPC - PA project area. Digital orthophotography combines the image characteristics of a photograph with the geometric qualities of a map. Orthophoto data is produced through the use of digitized perspective aerial photographs or other remotely sensed image data. This data is processed into a digital product that has been rectified for camera lens distortion, vertical displacement caused by terrain relief, and variations in aircraft altitude and orientation. Acquisition information, processing, accuracies, etc. apply only to the data collected under Task Order G15PD00279. The information reported does not include imagery acquired and produced by the US Army Corps of Engineers (USACE) and AXIS Geospatial. However, tile counts and boundary coordinates include the USACE imagery. This dataset consists of uncompressed, ortho photo tiles formatted as 16-bit, 4-band (RGB and NIR) GeoTIFF images with TIF world files. A total of 1,540 tiles were produced in PA State Plane South Zone, US Survey feet; tile size is 8,745 ft x 5,022 ft and uses the DVRPC PA index. The Microsoft UltraCam Falcon and Eagle large format digital camera was used to capture 4-band (RGB and NIR), 16-bit imagery at a Nominal Acquisition Altitude of 16,480' (AGL) during the Spring of 2015 on the following flight dates: Apr 2, 2015-A (N170TA; 50811038) Apr 2, 2015-A (N344Q; 40312131) Apr 18, 2015-A (N170TA; 50811038) Maximum and mean differential baseline lengths were not generated for the DVRPC/LVPC/NJ/YCPC orthoimagery project due to the use of Applanix SmartBase software used to process and compute atmospheric errors within a specified GNSS multi-base network. SmartBase processing offers a number of significant benefits including: The distance to the nearest reference station can be extended well beyond 30 km. The time to fix integer ambiguities is significantly reduced. The overall reliability of fixing integer ambiguities is increased. No special processing is required in the RTK engine, as it is the case for a centralized multi-base approach. Due to the complexity of the typical reference station network used in SmartBase processing, determining maximum and mean differential baseline lengths is not feasible for this project. For the 12 inch GSD Ortho image, horizontal positional accuracy was designed not to exceed 4 feet NSSDA 95% confidence.

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access_constraints ["Use Constraints: None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgment of the U.S. Geological Survey would be appreciated for products derived from these data.", "Access Constraints: None"]
bbox-east-long -74.7117238791928
bbox-north-lat 40.6205637716043
bbox-south-lat 39.7148350428119
bbox-west-long -76.1631804034882
contact-email custserv@usgs.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": ""}]
frequency-of-update irregular
licence ["The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided \"as is\" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation."]
metadata-date 2015-12-28
metadata-language eng; USA
metadata_type geospatial
progress completed
resource-type dataset
responsible-party [{"name": "U.S. Geological Survey", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-76.1631804035, 39.7148350428], [-74.7117238792, 39.7148350428], [-74.7117238792, 40.6205637716], [-76.1631804035, 40.6205637716], [-76.1631804035, 39.7148350428]]]}
spatial_harvester true
temporal-extent-begin 2015-04-02
temporal-extent-end 2015-04-18
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • 12-inch-orthoimage
  • amerigeo
  • amerigeoss
  • ckan
  • geo
  • geoss
  • image-map
  • national
  • natural-color-orthophoto
  • north-america
  • orthoimage
  • orthophoto
  • rectified-image
  • rectified-photograph
  • united-states
  • us
isopen False
metadata_created 2025-11-22T17:06:49.135235
metadata_modified 2025-11-22T17:06:49.135239
notes Multi-spectral digital orthophotography was produced at a scale of 1:2400 (1 in = 200 ft) with a 12 inch pixel resolution for the DVRPC - PA project area. Digital orthophotography combines the image characteristics of a photograph with the geometric qualities of a map. Orthophoto data is produced through the use of digitized perspective aerial photographs or other remotely sensed image data. This data is processed into a digital product that has been rectified for camera lens distortion, vertical displacement caused by terrain relief, and variations in aircraft altitude and orientation. Acquisition information, processing, accuracies, etc. apply only to the data collected under Task Order G15PD00279. The information reported does not include imagery acquired and produced by the US Army Corps of Engineers (USACE) and AXIS Geospatial. However, tile counts and boundary coordinates include the USACE imagery. This dataset consists of uncompressed, ortho photo tiles formatted as 16-bit, 4-band (RGB and NIR) GeoTIFF images with TIF world files. A total of 1,540 tiles were produced in PA State Plane South Zone, US Survey feet; tile size is 8,745 ft x 5,022 ft and uses the DVRPC PA index. The Microsoft UltraCam Falcon and Eagle large format digital camera was used to capture 4-band (RGB and NIR), 16-bit imagery at a Nominal Acquisition Altitude of 16,480' (AGL) during the Spring of 2015 on the following flight dates: Apr 2, 2015-A (N170TA; 50811038) Apr 2, 2015-A (N344Q; 40312131) Apr 18, 2015-A (N170TA; 50811038) Maximum and mean differential baseline lengths were not generated for the DVRPC/LVPC/NJ/YCPC orthoimagery project due to the use of Applanix SmartBase software used to process and compute atmospheric errors within a specified GNSS multi-base network. SmartBase processing offers a number of significant benefits including: The distance to the nearest reference station can be extended well beyond 30 km. The time to fix integer ambiguities is significantly reduced. The overall reliability of fixing integer ambiguities is increased. No special processing is required in the RTK engine, as it is the case for a centralized multi-base approach. Due to the complexity of the typical reference station network used in SmartBase processing, determining maximum and mean differential baseline lengths is not feasible for this project. For the 12 inch GSD Ortho image, horizontal positional accuracy was designed not to exceed 4 feet NSSDA 95% confidence.
num_resources 0
num_tags 16
title USGS High Resolution Orthoimages for DVRPC-PA