Tags
digital, color, orthoimagery, 5-inch
Ayres Associates provided the Bismarck-Mandan Metropolitan Planning Organization with digital, color orthoimagery services in 2016. The aerial imagery was collected on March 27th and 28th using an Intergraph DMC sensor mounted in a fixed-wing aircraft equipped with Inertial Measurment Unit (IMU) and Airborne GPS. Aerial imagery was collected to support 0.42 foot ground sample distance (GSD) orthoimagery to meet the National Mapping Accuracy Standard (NMAS) for 1"=100' scale mapping. The horizontal accuracy meets or exceeds NMAS requirements, stating that 90% of all test points be within 1/30th of an inch at mapping scale. Resultant orthoimagery was rectified to a DEM surface created from new LiDAR data acquired in 2016. Orthoimagery was delivered in PLSS section GeoTIFF and MrSID tiles and a project-wide MrSID mosaic. Additional Information: The Bismarck-Mandan MPO is a certified planning entity in the State of North Dakota and is comprised of the City of Bismarck, City of Mandan, City of Lincoln, and portions of Burleigh and Morton Counties. The purpose of the MPO is to provide a forum for public officials, citizens, and other interested groups to establish policies and plans for effectively addressing various metropolitan transportation issues. The MPO has a planning process that supports metropolitan community development and social goals. These plans and programs shall lead to the development of an integrated, inter-modal metropolitan transportation system that facilitates the efficient, economic movement of people and goods.
This project established digital, color orthoimagery for the Bismarck-Mandan Metropolitan Planning Organization (MPO).
City of Bismarck, City of Mandan, City of Lincoln, Burleigh County, Morton County.
Not to be used for purposes other than those strictly outlined in the 2016 Bismarck-Mandan MPO Orthophotography Initiative.
The State of North Dakota has compiled this data according to conventional cartographic standards, using what is thought to be the most reliable information available. This data is intended to make results of research available at the earliest possible date, but is not intended to constitute final or formal publication. The State of North Dakota makes every effort to provide virus-free files but does not guarantee uncorrupted files. The State of North Dakota does not guarantee this data to be free from errors, inaccuracies, or viruses, and disclaims any responsibility or liability for interpretations or decisions based on this data.
Not to be used for purposes other than those strictly outlined in the 2016 Bismarck-Mandan MPO Orthophotography Initiative.
The State of North Dakota has compiled this data according to conventional cartographic standards, using what is thought to be the most reliable information available. This data is intended to make results of research available at the earliest possible date, but is not intended to constitute final or formal publication. The State of North Dakota makes every effort to provide virus-free files but does not guarantee uncorrupted files. The State of North Dakota does not guarantee this data to be free from errors, inaccuracies, or viruses, and disclaims any responsibility or liability for interpretations or decisions based on this data.
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
Images were color corrected to match adjacent flight lines. The resulting imagery was globally tilted in terms of contrast and color to form a radiometrically consistent orthophoto mosaic.
These data cover the entirety of the 2016 Bismarck-Mandan MPO Orthophotography Initiative.
Photo positioning was obtained through the use of Inertial Measurement Unit (IMU), Airborne Global Positioning System (ABGPS) and ground-based GPS technology. The imagery was collected using an Intergraph DMC sensor at 12cm GSD. Imagery was captured in the absence of haze, fog, smoke, snow, ice, and dust, while streams were within the normal confines of their banks, and while clouds or cloud shadows were limited to 5% of the area of any one image; Image quality was verified during the post flight review phase. A rigorous Aerotriangulation process was performed and supplemented by the ground control. The triangulated strips were rectified using a DEM created from new LiDAR data acquired in 2016. The imagery was mosiacked using manual seamline generation and tone/color balanced to a project-wide consistency. PLSS section RGBI tiles were extracted from the mosiac and each individual tile was reviewed for artifacts and anomalies and adjusted as part of quality control procedures. The images were reviewed for rectification problems such as bridge displacements and seamline issues caused by the underlying digital elevation model. When necessary, local corrections to the imagery were performed to minimize such effects.