Earth  ID: 11144

The Secret Life Of Forests

Forests in the United States are constantly changing. For four decades NASA and the U.S. Geological Survey's Landsat satellites have kept a steady watch from space, and now scientists are turning yearly data sets into powerful time series that show the evolution of the landscape. In this visualization of false color images taken of the Pacific Northwest from 1984 to 2011, scientists see many different stories. Some are obvious, like the patchwork of logged land that flickers from mature trees (blue) to clear-cut (red) to regrown shrubs (yellow). Some are subtle, like the bark beetle or western spruce budworm infestations (dark red) that pulse across mountainsides. Watch as these and other changes come to life in the video.

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Story Credits

Greg Shirah (NASA/GSFC)
Alex Kekesi (GST)
Horace Mitchell (NASA/GSFC)

Video Editor:
Matthew R. Radcliff (USRA)

Robert Kennedy (Boston University)

Matthew R. Radcliff (USRA)

Lead Scientists:
Robert Kennedy (Boston University)
Zhiqiang Yang (Oregon State University)
Justin Braaten (Oregon State University)

Lead Writer:
Ellen T. Gray (ADNET)

Please give credit for this item to:
NASA's Goddard Space Flight Center
Western spruce budworm image courtesy of USDA Forest Service/Scott Tunnock,
Mountain pine beetle image courtesy of Forest Health Management International/William M. Ciesla,

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