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image, aerial photograph, United States, imageryBaseMapsEarthCover, land surface, Maine
General mapping, planning, and other municipal uses.
This OGC-compliant web mapping service (WMS) provides 2004 black-and-white aerial orthophotos at a resolution of 6 inch and 1 foot for Bar Harbor, Maine and some adjacent areas. The imagery were captured May 1, 2004 by Photo Science of Lexington KY, and further processed by KAPPA Mapping of Bangor ME to create orthophotos
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Extent
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| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
ground condition
Users must assume responsibility to determine the usability of this data for their purposes.
Monday through Friday
This OGC-compliant web mapping service (WMS) provides 2004 black-and-white aerial orthophotos at a resolution of 6 inch and 1 foot for Bar Harbor, Maine and some adjacent areas. The imagery were captured May 1, 2004 by Photo Science of Lexington KY, and further processed by KAPPA Mapping of Bangor ME to create orthophotos
General mapping, planning, and other municipal uses.
ground condition
None
None
Consistent with national standards for 1' and 6" ground sample distance (GSD).
For the 6" orthos, which are over the downtown Bar Harbor area:
Project Details
This project consists of aerotriangulation of 2 strips of 1"=600' photography over the downtown area of Bar Harbor, Maine. The final results are to be used to generate 1"=100' planimetric mapping of the downtown area and to produce O.5' resolution digital orthophotos.
Photography
A total of 2 flight lines of panchromatic aerial photography, 14 stereo photographs, were taken at an altitude of 3,600 feet above ground level. The photography was taken running from the northwest to the southeast generally paralleling the shoreline of the Atlantic Ocean. The photography was obtained in May 1, 2004 using a conventional 6" focal length lens, and airborne GPS (ABGPS).
Control
The ground control for this project consists of GPS surveyed targeted ground control. The targeted ground control was used to perform softcopy A/T that also used ABGPS data.
The following is a list of the targeted ground control coordinates:
Point ID Easting Northing Elevation
102 1062222.179 262061.361 45.574
103 1061600.889 264518.516 10.300
104 1056553.034 262865.785 156.661
105 1057454.261 259559.051 148.352
106 1060668.922 259005.939 87.022
107 1062175.633 255294.247 277.028
1101 1063863.023 253752.428 141.335
Aerotriangulation Measurement
Pass points and flight ties were pugged using a Wild PU G 3 device.
The measurement of the pass point and control data was performed on a DSR-14 analytical stereo plotter using ABC software. The data exported from this process is the raw plate coordinates.
Aerotriangulation Adjustment
The adjustment of the raw coordinates received from DSR-14 and the ground control were adjusted using ALBANY software. All strips were first run through a polynomial strip and block adjustment for the purpose of detecting blunders.
For the 1' orthos:
Project Details
This project consists of aerotriangulation of 6 strips of 1"=1200' photography over the entire town of Bar Harbor, Maine. An additional and 1 strip of 1"= 1500' photography was flown over Cadillac Mountain to ensure stereo coverage over the entire mountain. The final results are to be used to generate 1"=200' planimetric mapping of the rural town areas and to produce 1.0' resolution digital orthophotos for both the rural town areas.
Photography
A total of 6 flight lines of panchromatic aerial photography, 69 stereo photographs, were taken at an altitude of 7,200 feet above ground level. An additional flight line of 5 stereo photographs, were taken at an altitude of 9,000 feet above ground level. The photography was taken running from the northwest to the southeast generally paralleling the shoreline of the Atlantic Ocean. The photography was obtained in May 1, 2004 using a conventional 6" focal length lens, and airborne GPS (ABGPS).
Control
The ground control for this project consists of GPS surveyed targeted ground control. The targeted ground control was used to perform softcopy A/T that also used ABGPS data.
Aerotriangulation Measurement
Pass points and flight ties were pugged using a Wild PUG 3 device. The measurement of the pass point and control data was performed on a DSR-14 analytical stereo plotter using ABC software. The data exported from this process is the raw plate coordinates.
Aerotriangulation Adjustment
The adjustment of the raw coordinates received from DSR-14 and the ground control were adjusted using ALBANY software. All strips were ftrst run through a polynomial strip and block adjustment for the purpose of detecting blunders. The ftnal adjustment of the block was accomplished by using a rigorous simultaneous least squares bundle adjustment.
For more information, contact:
Claire Kiedrowski, CP
KAPPA Mapping, Inc.
6 State Street, Suite 301
Bangor, ME 04401
Ph: 207-942-5200
E:
Users must assume responsibility to determine the usability of this data for their purposes.
The Maine Office of GIS and the GeoLibrary Board provide web mapping services to distribute aerial photos and other digital data. A WMS is not a web application which you can see in a web browser; rather, it requires you to add the service to a GIS software application.
http://www.maine.gov/geolib/wms.htm