FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION VERSION 2007 TITLE: FEDERAL AVIATION ADMINISTRATION OBSTRUCTIONS 2008 Geodataset Name: FAAOBS_MAY08 Geodataset Type: SHAPEFILE Geodataset Feature: Point Feature Count: 5360 |
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GENERAL DESCRIPTION:
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DATA SOURCE(S): Federal Aviation Administration SCALE OF ORIGINAL SOURCE MAPS: N/A DATE OF AUTOMATION OF SOURCE: 20080504 GEODATASET EXTENT: State of Florida |
FEATURE ATTRIBUTE TABLES:
Datafile Name: FAAOBS_MAY08.DBF
ITEM NAME | WIDTH | TYPE | N. DECIMAL DEGREES |
OBJECTID
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4 | OID | --- |
OBSTCL_NM
|
12 | String | --- |
VER_STAT
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10 | String | --- |
COUNTRY
|
10 | String | --- |
STATE
|
7 | String | --- |
CITY
|
22 | String | --- |
LAT_D
|
9 | Number | --- |
LAT_M
|
9 | Number | --- |
LAT_S
|
9 | Number | --- |
LAT_HEMI
|
10 | String | --- |
LONG_D
|
9 | Number | --- |
LONG_M
|
9 | Number | --- |
LONG_S
|
9 | Number | --- |
LONG_HEMI
|
11 | String | --- |
OBSTCLTYPE
|
13 | String | --- |
OBSTCL_CNT
|
13 | String | --- |
AGL_HT
|
8 | String | --- |
AMSL_HT
|
9 | String | --- |
LIGHTING
|
11 | String | --- |
HORIZ_ACC
|
11 | Number | --- |
VERT_ACC
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10 | String | --- |
MARK_IND
|
10 | String | --- |
FAA_STUDY
|
17 | String | --- |
ACTION
|
9 | String | --- |
ACT_DATE
|
10 | String | --- |
DATCHKCD
|
11 | String | --- |
LATITUDE
|
19 | Number | 11 |
LONGITUDE
|
19 | Number | 11 |
USNG_FL_1K
|
10 | String | --- |
DESCRIPT
|
15 | String | --- |
FGDLAQDATE
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8 | Date | --- |
AUTOID
|
4 | Number | --- |
SHAPE
|
4 | Geometry | --- |
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
Item | Item Description | |
OBJECTID |
Internal feature number. |
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OBSTCL_NM |
NACG NUMBER - All obstacles are assigned a unique number based on state or country. The NACG_NUMBER consists of a two-digit code, a dash, and a six-character number. |
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VER_STAT |
Verification Status.
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COUNTRY |
Country Identifier. |
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STATE |
State Identifier. |
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CITY |
City Name. |
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LAT_D |
Latitude Degrees. |
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LAT_M |
Latitude Minutes. |
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LAT_S |
Latitude Seconds. |
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LAT_HEMI |
Latitude Hemisphere. |
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LONG_D |
Longitude Degrees. |
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LONG_M |
Longitude Minutes. |
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LONG_S |
Longitude Seconds. |
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LONG_HEMI |
Longitude Hemisphere. |
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OBSTCLTYPE |
Obstacle Type. |
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OBSTCL_CNT |
Quantity. |
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AGL_HT |
Above Ground Level Height (Feet). |
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AMSL_HT |
Above Mean Sea Level Height (Feet). |
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LIGHTING |
Type of Lighting. |
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HORIZ_ACC |
Horizontal Accuracy.
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VERT_ACC |
Vertical Accuracy.
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MARK_IND |
Mark Indicator.
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FAA_STUDY |
FAA Study Number. |
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ACTION |
Action
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ACT_DATE |
Date of Action. |
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DATCHKCD |
Data Integrity code. |
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LATITUDE |
Latitude of obstruction. |
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LONGITUDE |
Longitude of obstruction. |
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USNG_FL_1K |
Facility's 1-kilometer United States National Grid (USNG) address. The USNG is an alpha-numeric reference system based on the UTM coordinate system and is similar to the Military Grid Reference System. Use of the USNG ensures a uniform grid mapping and positional reporting system for search and rescue, emergency planning, response, and recovery. How to Read a United States National Grid (USNG) Spatial Address Website - http://www.fgdc.gov/usng/how-to-read-usng/index_html |
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DESCRIPT |
Based on the field OBSTCLTYPE. |
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FGDLAQDATE |
The date FGDL acquired the data from the Source. |
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AUTOID |
GeoPlan Center feature identification number. |
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SHAPE |
Feature geometry. |
This data is provided 'as is'. GeoPlan relied on the integrity of the original data layer's topology |
This data is provided 'as is' by GeoPlan and is complete to our knowledge. |
GeoPlan relied on the integrity of the attribute information within the original data. |
DIGITAL OBSTACLE FILE FOREWORD The Digital Obstacle File (DOF) is a listing of verified and unverified obstacles in the U.S. with limited coverage of the Pacific, the Caribbean, Canada, Mexico, Bahamas of interest to aeronautical information users. The obstacles are assigned unique alphanumerical identifiers and are listed in order by NACG Number. The DOF digital product is updated every 56 days. Included with the DOF delivery is a CHANGE LIST reflecting changes that occurred during the eight week period. This file is ordered by ascending file number. SPECIAL NOTICE: Important Information on Horizontal and Vertical Datums The World Geodetic System 1984 (WGS 84) is used as the horizontal datum for all DOF data. All obstacle data has been converted to WGS 84 as of November 19, 2007. All obstacle data identified with a Julian Date on or after the 71st day of 2001 will be placed in the North American Vertical Datum of 1988 NAVD88. All other elevations in the NACG Digital Obstacle File are in the National Geodetic Vertical Datum of 1929. |
The data was created to serve as base information for use in GIS systems for a variety of planning and analytical purposes. |
This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan |
This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan |
THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html |
Federal Aviation Administration (FAA) Aviation System Standards (AVN) National Aeronautical Charting Group (NACG) Digital Aeronautical Information (DAI) ORS Digital Obstacle File (DOF) Digital Aeronautical Information CD (DAICD) Digital Obstacle File http://naco.faa.gov/index.asp?xml=naco/catalog/charts/digital/daicd DIGITAL OBSTACLE FILE (DOF) READ ME FILE http://naco.faa.gov/content/naco/catalog/charts/digital/DOF_README.pdf |
FOR THE DOF, THE CD-ROM RECEIVED WITH THIS DELIVERY INCLUDES: 1. CD_DOF_README.PDF - This file which provides an overview of the new ORS formatted Digital Obstacle File (DOF) package, and the format for the data files included in the package. 2. One file containing digital data within all of the FAA Regions plus some areas of Canada, Mexico, Caribbean, Bahamas, the Pacific, and a change list reflecting actions taken since the last currency date, in an uncompressed file format. 3. DAI_DATCHK.EXE - A program for checking the data integrity of the DAI data files. 4. CHKALL_DOF.EXE - A program for checking the data integrity on all DOF files in the same folder as the program. 5. BROWSE.EXE - A program used to only view ASCII text files. SPECIAL NOTICE: Important Information on Horizontal and Vertical Datums As of July 29, 1992 all geographical coordinates in the NACO Digital Obstruction File have been refined and converted to the North American Datum of 1983 (NAD83). The 'Aviation Safety and Capacity Expansion Act of 1990' mandates that all positional data used in the National Airspace System be converted from NAD27 to NAD83. This adjustment is required so that US civil aeronautical charts and databases will be compatible with new navigation systems and equivalent to datums used by the US military and foreign governments. For charting purposes the North American Datum of 1983 (NAD 83) is considered equivalent to World Geodetic System 1984 (WGS 84). The North American Vertical Datum of 1988 (NAVD88) replaces the National Geodetic Vertical Datum of 1929 (NGVD 29) as the official civilian vertical datum for surveying and mapping activities in the United States for all federal agencies. All obstacle data identified with a Julian Date on or after "A1071" (the 71st day of 2001, see explanation of Julian Dates below) will be placed in the North American Vertical Datum of 1988 (NAVD88). All other elevations in the NACO Digital Obstacle File are in the National Geodetic Vertical Datum of 1929. Process Date: 20080504 |
Projection ALBERS Datum HPGN Units METERS Spheroid GRS1980 1st Standard Parallel 24 0 0.000 2nd Standard Parallel 31 30 0.000 Central Meridian -84 00 0.000 Latitude of Projection's Origin 24 0 0.000 False Easting (meters) 400000.00000 False Northing (meters) 0.00000
DATA SOURCE CONTACT (S):
Name: Abbr. Name: Address: Phone: Web site: E-mail: Contact Person: Phone: E-mail: |
Federal Aviation Administration (FAA), National Aeronautical Charting Group (NACG) FAA/NACG 6500 S. MacArthur Boulevard Oklahoma City, OK 73169-6901 301-713-2619 |
Name: FLORIDA GEOGRAPHIC DATA LIBRARY Abbr. Name: FGDL Address: Florida Geographic Data Library 431 Architecture Building PO Box 115706 Gainesville, FL 32611-5706 Web site: http://www.fgdl.org Contact FGDL: Technical Support: http://www.fgdl.org/fgdlfeed.html FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html For FGDL Software: http://www.fgdl.org/software.html