Technical info, data, and image sources

Although by absence the World Wind download alone comes with accessible area adumbration from the USGS and Landsat 7, Community associates accept fabricated accessible top resolution adumbration for New Zealand and New York, actuality and added countries, as able-bodied as Microsoft's Virtual Earth abstracts (for non-commercial purposes)

Google Earth, NASA World Wind and Norkart Virtual Globe save a accumulation of downloaded adumbration to the user's harder disk, enabling them to be acclimated offline to appearance ahead beheld areas. However, Google Earth cannot be activated after logging into its server the aboriginal time it is used.

The Google Earth's accumulation admeasurement is bound to 2000 MB admitting World Wind has no absolute on accumulation size. In Norkart Virtual Globe the deejay accumulation can be set by the user.

In accession to downloaded images, NASA World Wind aswell comes with the complete 500 m Blue Marble imagery1 and all-around placenames including countries, capitals, counties, cities, towns and actual references which are accessible from install.

World Wind is aswell able of announcement MODIS adumbration from the JPL Aqua and Terra satellites. An add-on2 allows for near-real-time MODIS imagery.

Google Earth and Virtual Earth 3D are both able of announcement abounding added burghal areas in high-resolution acknowledgment to their clandestine angel sources. Both companies aswell appoint accountant flights over above cities of the U.S. to yield aeriform images.

Marble (KDE) is advised for use in failing environments after 3D accouterments dispatch and is able of not alone getting acclimated as a standalone application, but aswell as a basic in added applications, such as in a "World Clock" Plasma (KDE) and for geolocation in the photo administration software digiKam.3

3D Acclimate Globe & Atlas comes with complete 1 km Blue Marble imagery,1 40,000 locations database, countries and time zones overlays. Appliance requires Internet affiliation alone for online features: digital billow awning and real-time acclimate and anticipation data.

Worldwide Telescope abstracts abutment includes raster and agent types, the closing including up to 700,000 credibility in a individual layer..