Blue Marble

The Blue Marble is an incredibly detailed, true-color depiction of the Earth. NASA is responsible for this dataset made from a compilation of satellite images throughout 2001. Most of the information came from NASA's MODIS, the Moderate Resolution Imaging Spectroradiometer, which is attached to the Terra satellite 435 miles above Earth. The background image of the land and oceans was created using data from June through September of 2001. This could not be done in a single day or even a week because on any given day clouds are blocking a significant portion of the surface. The cloud image is a composite of three days worth of data. The first two days of data were collected in the visible wavelength and the third day was needed to get a view of the clouds over the poles using thermal infrared imagery.

The shading is true color with the oceans shades of blue, the clouds white and the lands varying from green to brown. The brown areas are the sands of the deserts. The shading of the land was done using a dataset compiled by the U.S. Geological Survey's Earth Resources Observation and Science Data Center.

Additional Blue Marble datasets are available to highlight some of the characteristics of the changing Earth. The standard Blue Marble is a year long composite to show an average view of the earth. The Blue Marble without clouds is also available in monthly composites the entire year. This monthly evolution is the seasonal blue marble. The monthly evolution allows audiences to see the changing appearance of the Earth due to the season changes. The most dramatic change is the expansion of the snow cover during the winter months and then the depletion of it during the summer months. The Blue Marble is also available without the cloud cover so that the vegetation can be clearly seen.

Category:

Education

Tags:

• Land
• Solar
• System
• Earth
• Blue
• Marble
• NASA
• NOAA

[thebieberbowls]

WHAT THE FREAK

[dtrueson92262]

this whole globe is one revolving message ships, sunamis, tanks look at the clouds come on people does everyone have there heads up there butts..

sky scrappers, weapons of war, deamons grabbing at new york praying hands off the california coast. its a message from God of comming wrath. Sept 2010 california is to be destroyed by earth quakes then the economy crumbles and famine strikes america. look closely at the clouds almost everything is something what do you see...

[hockeyplaya867]

hey im in this picture

[rysternightstalk]

umm ok

[JackJ1957]

"God saw all that he had made, and it was very good." Genesis 1:31

[JackJ1957]

"God saw all that He had made, and it was very good." Genesis 1:31