Glossary

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[[Category:End User Documentation]] [[Category:End User Documentation]]
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Revision as of 23:40, 10 October 2005

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This is a glossary of terms commonly used with World Wind.


Contents: Top - 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


A

add-on
A feature that is not part of the core of World Wind. These can be layers, scripts or in some other way related to World Wind. Add-ons are usually community made. See the Add-on list and the Add-on forum for further information.
Altitude
Distance above sea level.
ARC
NASA Ames Research Center

C

CRS
coordinate reference system

D

dataset
The imagery used to cover the surface of the world.
Also used: Surface Data.
DDS
Direct Draw Surface. World Wind saves textures in this File Format.

G

GIS
Geographic Information System

L

LandSat 7
The seventh satellite of the LandSat project. See LandSat 7 for information on the satellite's imagery in World Wind.
Latitude
Degrees difference North or South from the Equator.
layer
Data that can be shown or hidden on the planet in World Wind. A layer can contain any of images, text and trails.
Longitude
Degrees difference East or West from Greenwich, England.

M

MODIS
Moderate Resolution Imaging Spectroradiometer. See Rapid Fire MODIS for usage details in World Wind.

N

NASA
National Aeronautics and Space Administration
NLT
NASA Learning Technologies
NOSA
NASA Open Source Software Agreement
NWW
NASA World Wind

O

Orthophoto
A photograph that has been processed to have a uniform-scale.

P

pan-sharpening
The act of combining a low resolution color image with a high resolution black and white image to create a high resolution color image.

S

script
A prerecorded series of view changes and text display that can be run from within World Wind.
SRTM
Shuttle Radar Topography Mission.
Surface Data
See dataset.
SVS
Scientific Visulaization Studio

T

tile
An image from a dataset. World Wind downloads datasets one tile at a time.
Topographic
Graphic representation of the surface features of an area.

U

USGS
U.S. Geological Survey

W

WMS
Web Map Server is a specification by the Open Geospatial Consortium. See WMS Browser for usage details in World Wind.
WWC
World Wind Central
Contents: Top - 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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