MIL-PRF-89049/9A

Abstract

This specification sheet defines the content and format for the U.S. National Geospatial-Intelligence Agency (NGA) Vector Vertical Obstruction Data (VVOD) product. References to the VVOD specifications in this document assume use of both the general specification (MIL-PRF-89049A, dated 15 December 2005) and this specification sheet. <br><u>Purpose</u>. The VVOD is a vector-based digital product that portrays vertical obstruction data. The VVOD also functions as a mission specific data set designed to support Geographic Information System (GIS) applications. The VVOD database contains data concerning known vertical obstructions worldwide. The vertical obstruction data stored in the database includes all of the manmade and natural vertical obstructions known by NGA projecting above the Earth&#8217;s surface which are sufficiently tall so as to pose a hazard to powered flight, both manned and unmanned. This specification sheet provides a description of the content, accuracy, data format, and design of the VVOD database. <b><u>Intended Use:</u></b> The VVOD database is intended to support a variety of basic military Geographic Information System (GIS) applications at a tactical or strategic level. It is intended for use as a general purpose vertical obstructions database which can support various aeronautical applications such as mission planning, route navigation, etc used by military services. &#160;<br>