Knowledge Base
WAAS
Wide Area Augmentation System. The Americas Satellite Based Augmentation System (see SBAS).

waypoint
A reference point on a track

Wide Area Augmentation System
(WAAS) The Americas Satellite Based Augmentation System (see SBAS).

WMM
World Magnetic Model. The WMM provides an estimated magnetic variation for any position on Earth. The WMM is a product of the United States National Geospatial-Intelligence Agency (NGA). The U.S. National Geophysical Data Center (NGDC) and the British Geological Survey (BGS) produced the WMM with funding provided by NGA in the USA and by the Defence Geographic Imagery and Intelligence Agency (DGIA) in the UK. Please refer to the following web page for additional information: http://www.ngdc.noaa.gov/seg/WMM/DoDWMM.shtml" http://www.ngdc.noaa.gov/seg/WMM/DoDWMM.shtml .

World Magnetic Model
(WMM) The WMM provides an estimated magnetic variation for any position on Earth. The WMM is a product of the United States National Geospatial-Intelligence Agency (NGA). The U.S. National Geophysical Data Center (NGDC) and the British Geological Survey (BGS) produced the WMM with funding provided by NGA in the USA and by the Defence Geographic Imagery and Intelligence Agency (DGIA) in the UK. Please refer to the following web page for additional information: http://www.ngdc.noaa.gov/seg/WMM/DoDWMM.shtml" http://www.ngdc.noaa.gov/seg/WMM/DoDWMM.shtml .

 
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