Blue Marble Next Generation From World Wind Wiki The Blue Marble
Next Generation is not just an 'improved version' of the old
Blue Marble. Apart from better resolution (500m/px) and better
colors, BMNG is 3 different views, with a different set for each
month, making 36 new image sets total. All the imagery was
acquired in 2004. Blue Marble: Next Generation offers greater
spatial detail of the surface and spans a longer data collection
period than the original. The original Blue Marble was a
composite of four months of MODIS observations with a spatial
resolution (level of detail) of 1 square kilometer per pixel.
Blue Marble: Next Generation offers a year's worth of monthly
composites at a spatial resolution of 500 meters. These monthly
images reveal seasonal changes to the land surface: the green-up
and dying-back of vegetation in temperate regions such as North
America and Europe; dry and wet seasons in the tropics, and
advancing and retreating Northern Hemisphere snow cover. Blue
Marble: Next Generation im