USGS High Resolution Orthoimagery for Honolulu, Hawaii: 04QFJ135535_201005_0x1500m_CL_1
Dates
Publication Date
2011
Time Period
2010-05
File Modification Date
2017-10-24 16:20:00
Citation
U.S. Geological Survey, 2011, USGS High Resolution Orthoimagery for Honolulu, Hawaii: 04QFJ135535_201005_0x1500m_CL_1: U.S. Geological Survey.
Summary
"The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International between May 13th, 2010 to May 28th 2011. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a LiDAR derived DEM. Mosaicing was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible. NOTE: As stipulated prior to production of ortho-imagery, source frames from an existing imagery collection were to be utilized. As such, the imagery may contain long shadows, haziness, and cloud shadows. Pictometry has corrected for this where possible and has made every effort to bring the final dataset into compliance with USGS [...]
Summary
"The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International between May 13th, 2010 to May 28th 2011. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a LiDAR derived DEM. Mosaicing was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible. NOTE: As stipulated prior to production of ortho-imagery, source frames from an existing imagery collection were to be utilized. As such, the imagery may contain long shadows, haziness, and cloud shadows. Pictometry has corrected for this where possible and has made every effort to bring the final dataset into compliance with USGS requirements; some residual artifacts may exist." 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. The design accuracy is estimated not to exceed 10-meters. Data received at Earth Resources Observation and Science Center (EROS) were verified as: Projection: NAD_1983_UTM_Zone_4N Resolution: 0.1500 m Type: Natural Color Data were compressed utilizing IAS software. The compression was JPEG2000 Lossy Compressed. The file format created was .jp2.
"Orthogonal image mosaic to support the needs of Dewberry & Davis LLC. Other uses expected." A digital orthoimage is a geometrically accurate photographic record of landscape conditions at the time of the corresponding aerial photography. As such, High Resolution Orthoimagery is useful for a variety of applications, such as environmental monitoring, facility engineering/maintenance, city/county planning, property line review, etc. The digital orthoimage can be used alone or as a raster basemap for corresponding vector line mapping. The detailed focus of High Resolution Orthoimagery provides emergency responders critical information in determining the best evacuation routes, alternative routes and safe access to aid. High Resolution Orthoimagery assists law enforcement personnel in determining the best locations to place surveillance cameras in high-traffic urban areas and popular attractions. The data assists Federal, State and local emergency responders in planning for homeland security efforts. This data also supports The National Map.
