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ADOP Frequently Asked Questions (FAQ)
What is the Arkansas Digital Ortho Program?
This is an ongoing program to acquire state-wide one meter Color Infrared (CIR) and natural color (RGB) digital orthophotography to meet state and local requirements. The data is also developed so that is can be shared with the U.S. Geological Survey. The special photography is encoded with its correct ground coordinates. The photography mission covers the entire State of Arkansas. Additionally, this project included the production of a state-wide, five-meter, digital surface model.
How does Arkansas benefit from this program?
A current and state-wide image base supports comprehensive map information crucial to decision making. GIS information allows for efficient planning in fundamental areas such as economic development, health, safety, and use of natural resources in the State of Arkansas. The files serve as a base layer for subsequent development of Arkansas' GeoStor. For example, a local industrial development commission can use this data to showcase their industrial park. The Arkansas One Call system uses this information to efficiently locate utility infrastructure. Arkansas farmers can analyze farmland images to increase production. The State receives additional value from the availability of the same base layer of information across all of our communities, making it much easier to share map information for regional projects or in the instance of a natural disaster.
Who coordinated this program?
The Arkansas Geographic Information Office coordinates the program along with the Arkansas State Land Information Board.
What is the State Land Information Board?
The 12-member board was created by Act 914 of 1997. The mission of the board is to improve the quality, access, and cost-effectiveness of geographic information across Arkansas.
Who supported this program?
Funding for this program came thru the passage of ACT 1800, of 2005 by the Arkansas State Legislature.
What are some applications of digital orthophotos?
With these special images loaded into a GIS, you can display any item on the image and deliver its coordinates. This fundamental layer can serve as the foundation for digital overlays of industrial parks, infrastructure such as water, power, and gas lines, timber stands, ownership boundaries, or administrative boundaries, such as school districts or city boundaries.
Why did the State purchase color-infrared and natural color?
Color-Infrared provides more interpretive detail for natural resource uses such as agriculture and forestry, while natural color makes and excellent interpretative base for mapping man made infrastructure such as roads, buildings and other built up features.
When is the aerial photography taken?
The photography mission launched during the winter when leaves are off of the trees. This is more appropriate for mapping projects because leaves do not block the view of ground features. The missions were flown on cloud-free and haze-free days, when the sun is angled 30 degrees above the horizon, and during conditions when there is no flooding or snow on the ground.
Will the files be usable by our GIS?
Yes. The design of this project was to secure the data in GIS industry standard formats. The format selected is the GeoTiff format. The files can be used in systems such as ESRI, Intergraph, ERDAS, PCI, and others. All of these systems are commonly used standard systems.
How is the data delivered to consumers?
The data is available for view by consumers via GeoStor through the Internet.
Can a consumer make additional copies of these files?
Yes, absolutely. The objective is to create it once and use it a bunch.
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