DAFIF (/ˈdeɪfɪf/) or the Digital Aeronautical Flight Information File is a comprehensive database of up-to-date aeronautical data, including information on airports, airways, airspaces, navigation data and other facts relevant to flying in the entire world, managed by the National Geospatial-Intelligence Agency (NGA) of the United States.
Withdrawal of public access[edit]
DAFIF was publicly available until October 2006 through the Internet, however it was closed to public access because 'increased numbers of foreign source providers are claiming intellectual property rights or are forewarning NGA that they intend to copyright their source'.[1] Currently only Federal and State government agencies, authorized government contractors and Department of Defense customers are able to access the DAFIF data.
Times Arial Times New Roman Times New Roman Special G1 ngabriefingtemplate Microsoft Visio Drawing NGA NIPRNET Presentation to FLIP Coordinating Committee, Digital Working Group What is NGA NIPRnet? Why do I need to register if I am authenticated with PKI? PowerPoint Presentation How will my first log- in process be achieved? Note for USA Navgps Basic Users: The USA databases above are a composite of FAA and DAFIF data sources. The airports available may be different than what was there before the merging of the two databases. If you'd rather use the DAFIF databases, then you can still download the old sample files from these links - USA-east and USA-west. DAFIF® Data Analysis DAFIF® Post-Publication Review. Our DAFIF® Post-Publication Review is a 100% verification of all published data pertaining to customer instrument flight procedures (IFPs) that AeroNavData coded prior to publication in National Geospatial-Intelligence Agency’s DAFIF®.
At the time of the announcement, the NGA did not say who the 'foreign source providers' were. It was subsequently revealed that the Australian Government was behind the move. The Australian government-owned corporation Airservices Australia in September 2003 started charging for access to Australian data. Rather than exclude the Australian data, the NGA opted to stop making the data available to the public.[2]
Using your Web Browser go to Complete the online registration form and Submit. A confirmation email will be sent to the email address listed for you. Account status will be set to Confirming. Status of the approval process can be checked by returning to Email Address Verification.
- Products & Services The National Geospatial-Intelligence Agency (NGA) does not sell or perform services for the public. Those products and services that are available to the public can be obtained from the following sources: Aeronautical Charts and Publications. The Defense Logistics Agency (DLA) Aviation Division is responsible for the.
- Mission Planning Tip: DAFIF Edition 8. If you're on automatic distribution for DAFIF you likely noticed a change a few months ago as the newest DAFIF edition made it's appearance: Forget about what data the disc contains and you'll realize the biggest news is that the data is coming to you on DVD! After years of waiting we're finally getting.
USFIF[edit]
A product called USFIF (pronounced as yoos-fəf) or the United States Flight Information File which contains only data related to the United States was available on the NGA website until October 2007. NGA no longer hosts any aeronautical information on the publicly available website.
Replacement for Google Earth Data[edit]
Since the DAFIF data has ceased to be available to the public, new sources of the data have arrived, though none is (yet) a complete replacement:
- In Google Earth Format (KML) Google Earth 3D Airspace
- Started soon after the withdrawal of the DAFIF data, the OurAirports web site is a community effort to produce an open (Public Domain) database of airports and navigation aids—nightly CSV data dumps are available from the site. Since OurAirports is open source, there are a lot of duplicate airports in the system and the data is not necessarily accurate as an official source would be.
- OpenStreetMap holds information about many aerodromes, and can be downloaded through the Overpass service.
- In other open formats, publicly contributed data, the Worldwide Soaring Turnpoint Exchange: Airspace
References[edit]
- ^'NGA Invites Public Comment on Proposal to Remove Aeronautical Information from Public Sale and Distribution'(PDF). Media Release. National Geospatial-Intelligence Agency (NGA). 2004-12-03. Archived from the original(PDF) on 2006-10-21.
- ^Tiboni, Frank (2005-12-12). 'NGA bans flight data from public view: Agency cites intellectual property rights as reason for policy shift'. Federal Computer Week (fcw.com). FCW Media Group. Archived from the original on 2006-06-22.
Is the DOF data considered to be in the public domain? Are there any restrictions on using the DOF data?
Yes, it is in the public domain. There are no restrictions on how you may use the data, but you are not allowed to change the data.
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In the DOF, how does one differentiate between a dismantled structure and an existing structure at the same location?
In our Digital Obstacle File (DOF), the letter in the 'Verified Status' column shows whether a structure is Unverified (U) or Verified (V). The letter in the 'Action' column shows the last action performed on the file, which can be Added (A), Changed (C), or Dismantled (D).
Why does the City Name field sometimes show 'CITY, STATE' instead of the normal 'CITY'?
The obstacle may be in one state, but the nearest associated city might be across the border in another state. The DOF was originally created for internal use by our Visual Charting team, and the nearest associated city/state name helps them locate the area on the chart to plot the obstacle. It also gives our users a quick reference as to its location.
Users should be aware that the DOF contains more than 6,000 records with a comma ('CITY, STATE') in the City Name field. Using this format has been a part of our standard operating procedures since the 1970's.
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In your database, is there a field that specifies whether obstructions are single or group?
Yes. Currently, the 'OBSTACLE TYPE' column includes the number of structures in that file, to the right of the actual structure type.
Do you have shape files for your DOF data?
None of our products include shape files for DOF data.
Do you have more specific metadata for your obstacles? (i.e. Is a 'sign' a traffic sign, a billboard, etc?)
We do not differentiate the various obstacle types. What you see in the DOF is as specific as we get.
Do you have more specific metadata for your 'TREE' and 'VEGETATION' obstacles?
We only differentiate between trees and other vegetation.
Your database does not seem to contain many buildings that exist in a particular area. Does the DOF not include all tall structures?
This office is tasked to maintain data on all structures over 200 feet above ground level and lower structures affecting F.A.R. Part 77 in the vicinity of airports with approach procedures. Maintaining an accurate, updated database depends entirely upon structures being reported to us in timely fashion by several sources, mainly the FAA's OE/AAA group, but also NOAA, FCC, NGA and other federal agencies. When tall structures are built and not reported to this office, this could have a negative effect on air navigation and would be of concern to us.
If you have not found certain existing structures in the online DOF, you should go to the following, and check the various search options on the left side of the page: Obstruction Evaluation / Airport Airspace Analysis (OE/AAA)
Note, many of the structures listed with the OE/AAA are in proposal or construction stage, and thus would not be listed in the DOF. However, there may be time lag between completion of a project and reporting to this office. Please do inform us of any structures that have been constructed and that you believe are over 200 feet above ground level height that are not listed in the DOF. You would need to provide us with an exact location with coordinates (GPS, Google Earth, other documentation) and any other information you might have (exact or approximate heights, current owner, etc.). We will have our analysts investigate to make sure all structures affecting navigable airspace are properly accounted for.
Does the DOF contain obstacles for approach procedures (found on the FAA form 8260)? If so, is there attribution that identifies which procedure the obstacle belongs to? If not, is there a publicly available data file that contains all of the 8260 obstacles?
The obstacles (manmade) for approach procedures are in the DOF database, but the attribution for the procedure is not part of the existing file. You would have to do a DOF search of the airport coordinates to obtain the listing of potential obstacles.
Where/what is the DVOF?
DVOF (Digital Vertical Obstruction File) is a Dept of Defense/NGA product not distributed through the FAA Obstacle Data Team website. Please visit the National Geospatial-Intelligence Agency.
If you have a question that you do not see here, please see Aeronautical Inquiries.
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This page was originally published at: https://www.faa.gov/air_traffic/flight_info/aeronav/obst_data/doffaqs/