190912-A-ZW424-1021

Gary Larson, facility operations manager with the Cold Regions Research and Engineering Laboratory, points out grass older than 10,000 years that has maintained enough chlorophyll to keep its green coloring within the permafrost during a tour of the U.S. Army Corps of Engineers Permafrost Tunnel on Sept. 12. The only one of its kind, the Army and CRREL maintain the permafrost tunnel to allow research on permafrost and how it affects climate change. (Photo by Daniel Nelson, U.S. Army Garrison Alaska, Fort Wainwright Public Affairs)

PHOTO BY: Daniel Nelson
VIRIN: 191204-D-HR740-9001.JPG
FULL SIZE: 0.71 MB
Additional Details

CAMERA

NIKON D300S

LENS

18.0-200.0 mm f/3.5-5.6

APERTURE

35/10

SHUTTERSPEED

1/13

ISO

800

IMAGE IS PUBLIC DOMAIN

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